3D Printing--Rapid Prototyping

 

3D Printing--Rapid Prototyping

• Rapid prototyping manufactory
• 1-3 days
• 50usd one pcs
• Extra Service-Design, Mold/Tools Making
• Product description: "Offer 3d printing rapid prototyping manufactory parts in China company. Who specifically designed & manufactured with your vision in mind. 3d printing Parts within 3 Days, Trust the supplier --CN-MOULDING co.,lt

3d printing technology is rapid prototyping, has been widely used in China

Including the medical industry has also been widely started using 3D printing technology. And even print organs have a real cell
A person's teeth, fingers, skin, ears, and even the heart can be printed, and that there are real human organs printed cells. "If the fingerprint of a 3D, first by 3D scanning technology. Materials used to prop up the skeleton of the fingers, and then by cultured cells implanted into the skeleton. So they fill the entire skeleton, like ivy, but also have a real cell. Before support The skeleton is also biodegradable materials, such as after a real cell filled, will slowly disappear. "

3D printing more sophisticated, not only shows large printed products can be very subtle. For example, it can print out a micro submarine, which can be placed in the human veins, carrying on drugs, help doctors know that certain illnesses.
In China, rapid prototyping, This technology has now developed to print food "3D food printer."It looks like an oven, put a layer of dry sugar on the internal tray, the printer nozzle will spray water, sugar and melted part of the stem shaping and carving. You can also choose to join the pigment in the water, so you can print out the color of the food. "In the future, diners can design their own good food shape, and then will include 3D printing design U disk to the chefs, cooks U disk into the printer can print out the shape of the food the customer wants."

we are passionate about rapid prototype machining making here in china, can’t wait to hear about your opportunity.
Initial consultations, project proposals, and tooling quotes are always free.

The advantages of plastic medical products

 

Plastic applications and advantages in the medical industry

Plastic application in the medical industry：

Medical equipment related to the pharmaceutical industries, machinery, electronics, plastics, etc., wherein the
plastic rapid development of medical devices. Since the 1930s people first used synthetic polymer materials.
Since celluloid film is formed as an artificial kidney dialysis membrane used in clinical success. Polymer
materials are gradually replacing traditional inorganic materials such as metal, glass, ceramic, apatite stone
for the preparation of medical devices. The advantages of plastic medical products.
 
 
This is the reason:

(1)Polymer material having good mechanical properties and chemical stability, more suitable for medical use;

(2) Polymer material rich source of inexpensive. Disposable medical supplies made for avoiding the problem of
sterilization. And secondary infection due to the high cost of traditional materials and products have caused
repeated use;
 
(3) Having a plastic or modified more easily get a good histocompatibility and blood compatibility of products;
 
(4) Plastic low production costs, for a variety of molding methods, ease of processing into complex shapes. And the development of new medical products.
 

Plastics in the medical industry advantages:

 
The advantages of plastic medical products. From medicines and pharmaceutical packaging. The needle tube, hose, disposable surgical instruments. And other medical equipment can be seen in the presence of plastic instruments.
 
The disposable medical device market demand potential is why so big, its main advantage is the following aspects:

1, Lightweight, effort, will help reduce fatigue caused by surgery doctors for a long time.

2, Toughness is good, strong anti-permeability, durability, some plastics can also be used normally at high temperatures.

3, Transparent, medical procedures can be better observed, especially during surgery.

4, Easy to shape, for the production of a variety of shapes, complex medical equipment, and supplies. And
simply use the low-cost production process. High-temperature sterilization using disinfectant or corrosion does
not occur or the color change phenomenon.

5, Compared to metals and other raw materials, low cost. More suitable for the production of disposable
consumables. After sterilization as packaging materials, help to reduce the risk of infection.

6, Compared with ceramic or glass and other fragile materials. The use of more safety, especially as packaging materials.
 
With the increase in the proportion of population growth and an aging population. The demand for plastic medical equipment continued to expand, particularly into the human body equipment. The use of medical equipment from a single to diversified development. The volume size is shrinking. Now equipment can replace conventional multiple pieces of equipment. Because of the many outstanding advantages of plastic medical equipment. The pharmaceutical industry in the future course of development, it's market share and influence will grow.

Select your plastic injection molding supplier have 6 reasons

 

There are six reasons as the factors need to be examined

• Quality improvement

• Market timing
• Optimal cost control
• Continuously improve and upgrade technology
• The most extensive industry supporting capacity
• Focus on the plastic mold and injection products industry

It can be proved from the efficiency, quality, and cost points, Customer's manufacturing of
injection molding parts is a challenge, after 20 years of development, we have obtained
customers who supply the production of injection mold on the best, but the fact that low
efficiency still problem in the process still exists.

We firmly believe that high-quality plastic parts manufacturing at a competitive cost are an eternal challenge. The whole process of efficiency improvement is shown to be more complex, involving issues beyond the most CEO imagination. Managers have often decided to save money to make molded parts, but soon found that "cheap"
plastic parts require considerable infrastructure investment to achieve the ultimate goal. They are committed to their commitment to investing in sophisticated equipment and training experienced employees. In the face of reality, one of the core competitiveness for each company is the biggest factor in mold production or outsourcing. There is no doubt that each manufacturer's mold making, and injection molding of product components will eventually make the product quality, but the price point of view of the market share proved to be a challenge.

Today, our technology has been a model for a successful injection molding parts supplier,
including packaging, medical, automotive, electronics, and other industries. Regardless of your industry and injection products, mold manufacturing in the factory set the parameters and the implementation of the rules unchanged. The evaluation success is a key factor in your honesty and Factual Evaluation
To determine the injection molding products in the factory and outsourcing, you must prove that the cost-benefit of the harvest is in the customer's best interests.

[caption id="attachment_258" align="aligncenter" width="300"] Select your plastic injection molding supplier have 6 reasons[/caption]

Related to the final evaluation,

We guarantee we will try to beat any quote you have got. Plus

1.       Fast delivery;

2.       Fast responses to inquiries;

3.       Excellent customer service;

4.       Free door-to-door delivery to some countries;

5.       Factory new, refurbished, and obsolete products;

6.       UP to 18 months warranty

Plastic Vacuum Thermoforming ---Food Tray

 

Plastic Vacuum Thermoforming ---Food Tray

• Plastic thermoforming
• Packaging industrial
• PVC,PP,ABS etc., material
• 100pcs batch minimum
• Product description: Cn-moulding is a professional vacuum thermoforming plastic manufacturer for different industries. Including the plastic food industry also in China.

In China, vacuum thermoforming plastic boxes are mostly used on food items, safety awareness of this package has also been of great importance to China's health sector. Hoping for a good grasp of this package of quality production, the main share of this article.

China plastic thermoforming packaging production industry, which produced the basic requirements for the use of standard data.

Plastic thermoforming boxes of food inspection rules:

1. Logo on the product packaging should be marked: manufacturer, product name, size number, date of manufacture, inspection. And storage of the job number and shipping points to note.

2. The plastic vacuum is thermoforming of the product packaging: disposable plastic liner bags, external carton (standard load cartons). A set number of quantitative specifications for packaging by name.

3. Transport the product during transport should be standard stacking, light? Prevent extrusion pressure, mechanical impact, rain, Shuaidie and direct sunlight, and so on.

4. Inspection rules by China thermoforming GB2828-1987 "batch inspection Sampling procedures and sample forms" to. Receiving a company is entitled to test the product. When tested in a given volume should be no quality difference for a lot of the same batch, poor product mix.

5. Samples of each batch box number are not less than 2% of the total number of boxes.

6. Packing the number of not less than 10% of the sampling number.

7 .Test items according to the standard: 3.1,3.2,4.1,4.2,4.3,4.4 regulations.

8. Test results are subject to non-compliance indicators, should be re-taken double samples were a re-examination of the failed project. Review the results if we do not meet the specified target. The product may be defective batch processing.

9. Signs, packaging, transport, and storage of vacuum thermoforming parts.

10. Storage of the product during storage should be stored in a relatively cool, ventilated, dry indoor warehouse.

Temperature below 40 degrees. From the heat source at least 2M, cannot be stored together with toxic materials. Under normal storage conditions, since the production date shelf life of 30 June (three years).

If you have a new project that needs plastic vacuum thermoforming part making service, contact us today.

We give you the greatest quality assurance and after-sales.

What is Die casting

What is Die casting

Die casting is a manufacturing process for producing metal parts by forcing molten metal under high pressure
into a Die cavity. Generally speaking, these Die or mold cavities are created with hardened tool steel that has
been previously machined to the net shape or near-net shape of the Die cast parts. This process allows
products to be made with a high degree of accuracy and repeatability. The Die casting process also produces
fine details such as textured surfaces or names without requiring further processing.

The ability to produce highly detailed and high accuracy parts make Die casting a suitable choice for the mass-produced product. The moment you wake up you are surrounded by-products that are produced by the Die
casting process. When you turn the faucet, you open the doorknob, when you drive your car, almost
every product or part of the product you use in your daily life is produced using this process.

The die casting process usually produces parts using primarily non-ferrous metals, such as zinc, copper, aluminum, and magnesium. Over the years, many different alloys have been developed to meet a certain type of needs and requirements
of each application.

Type of Die casting processes

The Die casting process can be further divided into two different categories:

1, Hot Chamber Die Casting

2, Cold Chamber Die Casting

Hot Chamber Die Casting is the process where the injection system is immersed in a pool of molten metal hence the name.  The furnace is attached to the machine via a feeding system called a gooseneck.  As the cycle begins the piston will retract, which allows the molten metal to fill the “gooseneck” from a port in the injection cylinder. As the plunger moves downwards, it seals the port and forces the molten metal through the gooseneck and nozzle into the Die.  Once the metal solidifies, the plunger will pull upwards.  Afterward, the Die will open and the part is ejected.  The advantage of this process it's short cycle time as it does not require metal to be transported from a separate furnace.  Unfortunately, this Die casting process is only suitable for alloys that do not attack the injection cylinder such as zinc, magnesium, and copper.

Cold Chamber Die Casting is the process of using a ladle to transport the molten metal from the holding furnace into the unheated shot chamber or injection cylinder.  This metal is then shot into the Die by using a hydraulic piston.  The main disadvantage of this process is that it is relatively slower compared to the Hot Chamber Die Casting Process.  However,
this process is primarily used for manufacturing aluminum parts as molten aluminum alloys have a tendency to attack and erode the metal cylinders, plungers and Die greatly shortening their tool life.

History

The Die casting process dates back to the mid-1800s when a patent was awarded to Sturges in 1849 for the
first manually operated machine for casting printing type.  However, it was not until 20 years later that this
process has been used to produce other consumer products such as phonographs and cash registers.
In the beginnings, tin and lead are the primary alloys used for the die casting process, but these alloys
have been replaced by zinc and aluminum since the 1920s.
As technology advances, the die casting process has become more and more efficient.  New technologies allow greater pressure in the injection process, thus allowing us to produce parts that are closer to net shape and higher integrity than
ever before.

Advantages of Die Casting Parts

One of the main advantages of Die casting is the ability to produce parts and products with a wide range of
shapes and sizes.  Unlike other manufacturing processes such as extrusion, the Die casting process does
not limit the shape of parts and in most cases will be the net shape of the parts.

Durability:

Unlike plastic parts, Die-cast parts are stronger than their plastic counterparts.  In most cases, this allows
parts to be produced with thinner walls while maintaining the strength that is required for its application. 
Furthermore, Die cast parts are able to withstand a broader range of temperature, making it more ideal
in harsh temperatures and working environments.

Mass production at high speed:

Since the Die casting process can allow manufacturers to produce complex parts to net shape, there are little or no machining processes required thus reducing the production time making Die casting one of the most effective processes to mass-produce non-ferrous metal complex parts.

Green Manufacturing:

How long does it take for plastic to biodegrade?  According to scientists, plastics take at least a few hundreds of years to degrade fully.  This means that obsolete plastic products are pilled up in landfills, polluting our beaches, killing millions of sea animals and causing health hazards to the inhabitants in our neighborhoods.  Unlike plastic, Die casting parts are primarily made of recycled material.  On average, approximately 95% of the metal is recycled from salvaged parts making it a sustainable material that can be used over and over again without degradation.

Thinner Wall Castings:

Compared with sand and permanent mold castings, the Die casting process is able to produce parts with thinner walls due to the high pressure during the injection process.  This allows lightweight construction as well as eliminates or reduces the need for secondary operations.

Casting with inserts:

The Die casting process allows inserts to be cast-in to form certain features such as threaded inserts, heating elements or high strength bearing surfaces.

Air Poppet in injection mold

CNmoulding Air Poppet in injection mold

Air Poppet in injection mold

Air Poppet in injection mold

 

The popular design of injection mold is generally using the thimble to push out the mold of the product. For the products with high product appearance requirements, most of them do not adopt this way. Because of the reason of the product structure. The top block cannot be used for all products. For example, for a barrel, a product with a special structure of inverted buckling. The surface of the product is an external surface without perforation.

If a general thimble is used to push out the product, it is easy for the product to be sucked. Resulting in the product being pushed out of a depression, or perforation occurs. Affect the appearance and use of the product. At this point, an air poppet is needed. The air poppet is completed to solve the shortcomings of the prior art. The purpose is to provide a product with a simple structure, convenient operation, suitable for this special structure of the barrel and basin, and improve the qualified rate of the product. Reduce production costs and make it easier for products to be completely ejected.

Air pop valves are available in inch and metric sizes. They are designed to break the vacuum created when forming thin-walled or deep-drawn parts such as flowerpot trays and containers. Multiple air cone valves can be used for large or heavy-duty sliders.

Extensive experience serving a wide range of air poppet valve

Taking the new injection mold made by American customers as an example, the round cover product with inner thread is designed with an inverted structure on the core. To prevent the product from sticking to the front core. Ordinary ejectors can no longer meet the required technical requirements, so we replace them with an air pop valve. The injection mold requirement quality is high in the United States because the process standard is not reached during the install air poppet, which leads to the mold test failure.

What is the purpose of the air poppet valve in plastic injection molds? An air poppet valve used to assist injection of molding parts. A small amount of gas is blown into the injection mold cavity (or from the core) at the desired position to assist in separating the moulding portion from the desired mold parting line feature. Examples of using dimethyl, ether air Poppet valve are with deep drawing parts (i.e. drums) or thin-walled molded parts. The timing of airflow is consistent with the injection cycle, which opens the valve to break the vacuum and facilitate partial injection.

Last poppet valve technology

In general, the minimum diameter of the air poppet can be 5 mm, the maximum diameter can be 30 mm, the maximum height of the air poppet can be 50 mm, and the air poppet valve is generally composed of four parts: the shell, the top rod, the spring, and the elastic cylinder pin. There is a more common air poppet valve used in domestic, DME valve also known as VA air valve is used in export mould, CUMSA air poppet valve is the second, and HASCO brand name is relatively less. If the international standard air poppet valve is used, the price is still very high up to now. It usually costs several hundred RMB. The mould of these international standards can basically be produced at home, and the quality is relatively reliable and stable. This kind of technology has been mastered.

car pipe joint

 A car pipe joint is a component that connects two pipes in the car's exhaust system. The exhaust system is responsible for removing the harmful gases produced during the combustion process from the engine and releasing them into the atmosphere. The car pipe joint is an essential part of the exhaust system and helps to maintain the integrity of the system.

[caption id="attachment_4389" align="alignnone" width="300"] car pipe joint[/caption]

The car pipe joint is typically made of metal, such as stainless steel or aluminum, and is designed to withstand high temperatures and corrosive exhaust gases. It is often a flange-type joint that consists of two flange plates and a gasket in between. The flange plates are bolted together to create a tight seal, and the gasket helps to prevent exhaust leaks. The car pipe joint is subject to wear and tear over time due to exposure to high temperatures and corrosive gases. If it becomes damaged or corroded, it can cause exhaust leaks, which can result in poor performance, increased emissions, and even damage to the engine. It is important to inspect the car pipe joint regularly and replace it if necessary to ensure the proper functioning of the car's exhaust system.

The chemical properties of different fluid media vary, and the service life of sleeve joints with different materials varies under different fluid media conditions. So what types of automotive pipe joints are there? The types of automotive pipe joints mainly include welding type, clamp type, expansion type, and snap type.

[caption id="attachment_4372" align="alignnone" width="300"] car pipe joint[/caption]

Expansion type pipe joint:

Expansion type pipe joint is suitable for non-corrosive or corrosive media, such as oil, water, gas, etc. The specification of steel pipes is flexible. After welding with the pipeline, it has the characteristics of firm connection and good sealing performance. It is widely used in petroleum refining, chemical industry, light industry, textile, defense, metallurgy, aviation, ships, and other systems. It is also suitable for various hydraulic transmission pipelines such as mechanical engineering, machine tools, and equipment.

[caption id="attachment_4373" align="alignnone" width="300"] car pipe joint[/caption]

Clamp type pipe joint:

The working principle of the clamp type pipe joint is to insert the steel pipe into the clamp, lock it with the clamp nut, press against the clamp, and seal it into the pipe. When connecting with a steel pipe, welding is not required, which is conducive to fire prevention, explosion prevention, and high-altitude operations, and can eliminate the disadvantages caused by welding accidents. Therefore, it is a high-level connector in the automatic control device pipeline of systems such as petroleum refining, chemical industry, oil, natural gas, food, pharmaceuticals, and instrumentation. It is suitable for pipeline connections of media such as oil, gas, and water. This invention has the characteristics of firm connection, high pressure resistance, high temperature resistance, good sealing and repeatability, easy installation and maintenance, and safe and reliable operation.

[caption id="attachment_4378" align="alignnone" width="300"] car pipe joints[/caption]

Welded pipe joint:

Welded pipe joint is suitable for media: non-corrosive or corrosive media such as oil, water, gas, etc. For welding sealed pipe joints, the specification of steel pipes requires flexibility. After welding with the pipeline, it has the characteristics of firm connection and good sealing performance, so it is widely used in petroleum refining, chemical industry, light industry, textile, defense, metallurgy, aviation, ships, and other systems. It is also suitable for various hydraulic transmission pipelines such as mechanical engineering, machine tools, and equipment. When producing cardan couplings cannot meet the needs, it can be used in priority in strong corrosive situations.

[caption id="attachment_4375" align="alignnone" width="300"] car pipe joints[/caption]

Snap-type pipe joint:

Snap-type pipe joint is suitable for low pressure, large diameter, and corrosive media. It uses a special snap structure to connect two pipelines together, with the characteristics of simple connection, easy installation, and easy disassembly and maintenance. It is commonly used for connecting pipelines in industries such as sewage treatment, chemical, metallurgy, and papermaking.

In addition to the above types of automotive pipe joints, there are also other types such as flexible joints and rubber joints. These different types of pipe joints have different service lives and applicability under different fluid media and environmental conditions, and need to be selected and used according to specific situations.

How to choose injection mold manufacturers

 Recently saw a report about the selection of China's top 10 mold companies. It is ironic that the names of these companies we have never heard. In China, there are tens of thousands of mold companies, this result is how selected out of it? If you want to find a suitable supplier in China, what factors should be considered?

To find more large-scale cooperation in the mold factory better?

 Large-scale, medium-sized, or small-scale? In this regard, we have the following recommendations, if a single from the factory scale. We certainly will prefer the larger the better, because the size of great strength, fully furnished! Its size also indirectly reflects the size of the customer choice of high and low! But on the other hand, the greater the scale means that management costs will be high, and the price advantage will not be obvious, especially large-scale foreign investment in some of the prices of the mold is unacceptable, even beyond our customer's offer cost. The other is the relatively slow response, the problem can not be resolved in a timely manner communication. 

Your choice of mold factory whether you as an important customer or no attention to you is very critical. If your own business capital strength is not strong, not a large amount of purchase, have to choose large-scale cooperation in the mold factory, and sometimes spent money does not necessarily guarantee the quality of many large mold factory does not take a single or Irresponsible is out of this mentality, because in terms of order amount or order quantity you can not meet their requirements.

injection mold

 In this case, most people will choose small and medium-sized mold factories. In fact, in the industry which is now generally we are doing, after all, mold and product prices are more acceptable. But soon you will find it worrying The thing again, is the mold is completed on time? How about quality? Die mass production how? Die life how?

 At this point, it is recommended that you must pay attention to basic knowledge. That is, we must choose a complete set of equipment that must have a complete set of precision CNC machining centers, wire walking EDM, EDM mirror spark machine, and high-speed high-precision injection molding machine. Dimensional measuring instruments and other important mold processing, production, and testing of the necessary equipment, must be this for the study of evaluation and the final choice of the key. Because if not the above equipment, mold manufacturing, and production process mean that this mold factory. The need to seek outward processing has three main adverse consequences: 

Choose injection mold manufacturers

1, Will increase the cost of your mold costs, the cost increase; How to control costs？ 

2, Is the mold factory in the outward process of repeated communication. And coordination of the transfer of the workpiece takes time and will increase the molding cycle. Very likely to cause mold and product delays, although the purchase agreement or the contract will indicate the relevant terms of the delay penalty. But in the event of tardiness, fines can not make up for the reality of the enterprise and long-term losses. 

The most important thing is the third point, the mold factory of the outward processing of the process can not be timely monitoring. To undertake the processing plant is often smaller than the size of only one or two second-hand equipment processing stores. Many look like quality Good mold because of these processing shops' sloppy, brutal operation, and repeated welding. And other means and processing methods caused by the deformation of mold. Reach the life of scrap in advance, and some even simply can not mass production! 

Plastic Injection Mold Making Process

 In China, a long-standing tradition of export mold manufacturers, we share here the basic injection mold making overview:

1. Parts Design (client may provide completed 3D files)
The tooling process begins with a completed and checked part design. CNMOULDING can optionally optimize your design before tooling to lower your costs and ensure that your design will work well.

2. Parts Prototyping (if necessary)

If you would like to validate your parts design with a machined piece that you can see and feel, CNmoulding can use Computer Numerical Control (CNC) techniques to prototype your parts.

3. Tool / Mold Design

At this stage the tool is designed, using the information from your completed tools and molds design

4. Tool / Mold Check and Mold Flow Analysis
The tool design is validated for correctness.

5.Tool / Mold Fabrication

(including use of Computerized Numerical Control (CNC) and Electrical Discharge Machining (EDM) technologies)
The tool is precisely fabricated according to the validated design.

6. New Injection Molds First Shots To Client
Once the injection molds are made, the first test shot samples will be sent out soon after via an international courier. Once sent, these usually take around 2-5 days to arrive.

7. Tool / Mold Modifications and Texturing
At this stage, the Mold shop completes the tool and makes any required changes to bring the tool into the approved spec. Changes made to bring the tool to spec (specifically excluding design changes, which are always charged) are made free of charge.
At this stage, texturing also takes place, which is normally the last stage before mass production.

8. Mass Production Run or Export
At this stage, parts are produced and delivered to the customer, or the tool is released for export use.

Technical Topics:

Molding begins with tooling. No matter how good the design, if the tooling is not up to the task. The quality of the parts will suffer.

The Mold Making & factory tour in china

New technology innovation and application of injection molding

 

New technology innovation and application of injection molding

 

What are the new technologies in plastic injection molding?

1, Gas-Assisted Injection Molding
2, Foam Injection Molding
3, Hot and Cold Runner Molds
4, Insert molding or Over Molding

Industries that thrive on its manufacturing process are no strangers to the technique of plastic injection molding. The overall process of manufacturing is aided by the accuracy of plastic injection molding.
It has gone a long way since its first appearance in the production process in the 1800s. Since then, plastic injection molding has developed into new technologies that enable. You to produce high-quality products and quick manufacturing of plastic parts.
Exploring new technologies in plastic injection molding will do wonders for your business. And for the production of your concept of a product. With these new techniques. The design and function of your plastic parts will be efficient.
If you would like to know the latest plastic injection molding technologies, then this article is for you!

Injection molding is a constantly evolving technology, with new innovations and applications emerging all the time. Here are some recent technology innovations and applications of injection molding:

Additive manufacturing:

Additive manufacturing, or 3D printing, is being used in conjunction with injection molding to create complex molds and parts. This technology allows for rapid prototyping and customization, as well as the creation of unique shapes and designs.

Micro-injection molding:

Micro-injection molding is a specialized form of injection molding that is used to produce very small parts with high precision. This technology is being used in the medical industry to create components for surgical instruments, as well as in the electronics industry to produce miniature connectors and sensors.

Multi-component molding:

Multi-component molding, also known as overmolding, is a process that allows for the creation of parts with multiple materials or colors. This technology is being used in the automotive industry to produce parts with soft-touch surfaces and in the consumer goods industry to create products with unique designs and textures.

Sustainable materials:

Injection molding is being used to produce parts and products using sustainable materials such as bioplastics and recycled plastics. This technology is helping to reduce the environmental impact of manufacturing and increase the use of renewable resources.

Overall, injection molding is a versatile technology that is being used in a wide range of industries and applications. Ongoing innovation and development are helping to improve the process, reduce costs, and increase efficiency.

Does all injection mold need a hot runner?

 Injection molding is a widely used manufacturing process in various industries. It involves injecting molten material into a mold cavity to create a desired shape. One of the key considerations in injection molding is whether or not to use a hot runner system.

A hot runner system is a set of heated components that deliver molten material to the mold cavity. It consists of a manifold, nozzles, and heaters that keep the material hot and flowing. The purpose of a hot runner system is to eliminate waste and improve efficiency. By keeping the material hot and in a constant flow, there is less material waste and shorter cycle times.

However, not all injection molds require a hot runner system. The decision to use a hot runner system depends on several factors, including the size and complexity of the part being molded, the material being used, and the production volume.

For small parts with simple designs, a hot runner system may not be necessary. Cold runner systems, which use unheated channels to deliver the material, may be sufficient. Cold runner systems are generally less expensive and easier to maintain than hot runner systems.

For larger parts with complex designs, a hot runner system may be necessary to ensure proper filling of the mold cavity. Hot runner systems can also help prevent defects such as warping, sink marks, and flow lines.

The material being used also plays a role in the decision to use a hot runner system. Certain materials, such as thermoset plastics, may require a hot runner system to prevent premature curing or solidification.

Finally, the production volume must be considered when deciding whether or not to use a hot runner system. Hot runner systems are generally more expensive to purchase and maintain than cold runner systems. If the production volume is low, it may not be cost-effective to use a hot runner system.

In conclusion, not all injection molds require a hot runner system. The decision to use a hot runner system depends on several factors including the size and complexity of the part being molded, the material being used, and the production volume. It is important to carefully consider these factors when deciding on the best injection molding process for your specific application.

Custom insert molding

 

Various insert molding part use in all industry

Insert Molding (or insert moulding) in China is similar to multi-shot molding in that it results in the combination of two or more resins into a single product. Each resin is molded separately in an individual mold. And is transferred either by a robot or manually to subsequent molding operations for the additional resins. Insert molding is better suited for lower volume applications than multi-shot molding due to lower capital investment requirements. Typical applications include ‘soft-touch’ materials molded onto an enclosure (drill housing or handle) or multiple colors/materials molded together for aesthetic or functional purposes. we have broad experience in the development and manufacture of overmold products.
insert molding in China is generally much more affordable than in the West (about 50% lower in China, 30% lower in Taiwan) But of course, the whole process has to be carefully monitored to avoid disappointments.

we will devise the appropriate insert mold/mould making strategy for you. We have different ways for a complex small product and a large insert moulding tool. If you need to have real insert molded parts in hand within 2 weeks. Our prototyping team services have very cost-competitive.For the local insert molding or Export

Insert injection molding or injection mould in china

If your company wants lower tooling prices. But still needs the flexibility of insert molding at home we can ship you the moulds. Built according to the specifications of your injection machines. Overall costs (tooling, parts & shipping) are generally about 30% lower. When we do the insert molded parts outside as well.

Let us re-engineer your insert molding parts for lower tooling costs.
In our product design process, we use our principles allow us to make design decisions based on actual manufacturing methods and costs. Which of course leads to more realistic decisions and better cost optimization than applying them when the design is already frozen. Our engineers strictly supervise any redesign effort to make sure that the final part still meets Western aesthetic expectations.

Insert molding material 

Insert molding (or “insert moulding”) is just one of the specialized plastic injection service delivery methods that insert molding and OVERMOLDING are the same as traditional injection molding.
Insert molding is the process of forming or forming plastic parts around other nonplastic parts or inserts
Insert inserts are usually simple metal objects. Such as nuts or stamping parts, and some special items that can be inserted into the complex motor Similarly. Non-metallic materials can also be used to insert molded inserts.

The importance of packaging for plastic products

 In today's world, plastic products have become an integral part of our lives. From household items to industrial tools, plastics are used in almost every sector. However, with the increasing use of plastic products, the importance of packaging has also increased significantly. Packaging plays a crucial role in protecting and preserving plastic products throughout the supply chain. In this blog post, we will discuss the importance of packaging for plastic products.

 

Firstly, packaging helps to protect plastic products from damage during transportation and storage. Plastic products are often fragile and can easily get damaged if not handled carefully. Proper packaging ensures that the products are protected from moisture, dust, and other external factors that can cause damage. Moreover, packaging also helps in reducing the risk of theft and tampering during transportation.

 

Secondly, packaging helps to preserve the quality of plastic products. Plastic products are susceptible to degradation over time due to exposure to light, heat, and moisture. Proper packaging helps to prevent these factors from affecting the products and ensures that they remain in good condition for a longer period. This is particularly important for plastic products that have a longer shelf life, such as medical devices and electronic components.

 

Thirdly, packaging plays a vital role in branding and marketing plastic products. The packaging design and quality can significantly impact the consumer's perception of the product. A well-designed and high-quality packaging can create a positive impression on the consumer and increase brand loyalty. Moreover, packaging can also be used as a tool for differentiation in a highly competitive market.

 

Fourthly, packaging helps to reduce the environmental impact of plastic products. Plastic waste is a significant environmental concern, and proper packaging can help to reduce the amount of plastic waste generated. Packaging that is reusable or recyclable can significantly reduce the environmental impact of plastic products. Moreover, packaging can also be designed to use fewer materials, thereby reducing the overall carbon footprint of the product.

In conclusion, packaging is an essential aspect of plastic products that should not be overlooked. Proper packaging helps to protect and preserve the quality of plastic products, enhances branding and marketing efforts, and reduces the environmental impact of plastic waste. As such, businesses that deal with plastic products should give due consideration to packaging design and quality to ensure that their products are well-protected and marketed effectively.

What is a surface printing?

 

China Plastic injection molding products processing technology

Plastic parts surface printing is a widely used technique in the manufacturing industry that involves applying graphics or text onto the surface of plastic components. This process is commonly used to enhance the aesthetics of products, provide branding or labeling information, and improve overall product visibility.

There are several methods of plastic parts surface printing, each with its own advantages and limitations. One of the most common techniques is pad printing, which involves transferring ink from a silicone pad onto the plastic surface. This method is ideal for printing on irregular or curved surfaces and can produce high-quality, detailed prints.

Another popular method is screen printing, which involves pushing ink through a fine mesh screen onto the plastic surface. Screen printing is suitable for larger print areas and can be used to achieve vibrant colors and intricate designs. However, it may not be ideal for complex shapes or small print areas.

Digital printing is another option for plastic parts surface printing. This technique involves directly printing the desired graphics or text onto the plastic surface using specialized digital printers. Digital printing offers flexibility in terms of design customization and can produce high-resolution prints. However, it may not be as cost-effective for large production runs compared to other methods.

In addition to these techniques, there are also various considerations when it comes to selecting the right ink for plastic parts surface printing. The choice of ink depends on factors such as the type of plastic material, desired print durability, and environmental requirements. Common types of inks used for plastic parts surface printing include solvent-based inks, UV-curable inks, and water-based inks.

When implementing plastic parts surface printing, it is crucial to ensure proper surface preparation to achieve optimal print quality. This typically involves cleaning the plastic surface to remove any contaminants or oils that may interfere with ink adhesion. Additionally, pre-treatment methods such as corona treatment or flame treatment may be necessary to enhance ink adhesion on certain types of plastics.

Plastic parts surface printing offers numerous benefits to manufacturers. It allows for customization and personalization of products, making them stand out in a competitive market. It also provides a cost-effective solution for branding and labeling requirements, eliminating the need for additional labels or stickers. Furthermore, surface printing can enhance product visibility and improve user experience by providing important information or instructions directly on the product.

In conclusion, plastic parts surface printing is a versatile and effective technique for enhancing the appearance and functionality of plastic components. With various printing methods and ink options available, manufacturers have the flexibility to achieve their desired print quality and design customization. By utilizing plastic parts surface printing, businesses can create visually appealing products that leave a lasting impression on consumers.

we are a professional china injection molding factory

We focus on precision mold manufacturing and injection molding manufacturing and also supply your
injection molding after process technology service.

customer quality support

 Overview:

• Parts Design 

• (client may provide completed 3D files)
  The tooling process begins with a completed and checked part design. CNMOULDING can optionally optimize your design before tooling to lower your costs and ensure that your design will work well.
• Parts Prototyping (if necessary)
  If you would like to validate your parts design with a machined piece that you can see and feel, Cnmoulding can use Computer Numerical Control (CNC) techniques to prototype your parts.

• Tool Design

• At this stage the tool is designed, using the information from your completed tools and molds design

• Tool Check and Mold Flow Analysis

• The tool design is validated for correctness.
• Tool Fabrication (including use of Computerized Numerical Control (CNC) and Electrical Discharge Machining (EDM) technologies)
  The tool is precisely fabricated according to the validated design.

• First Shots To Client

• Once the injection molds are made, the first test shot samples will be sent out soon after via an international courier. Once sent, these usually take around 2-5 days to arrive.

• Tool Modifications and Texturing

• At this stage, Cnmoulding completes the tool and makes any required changes to bring the tool into the approved spec. Changes made to bring the tool to spec (specifically excluding design changes, which are always charged) are made free of charge.
  At this stage, texturing also takes place, which is normally the last stage before mass production.

• Mass Production Run or Export

• At this stage, parts are produced and delivered to the customer, or the tool is released for export use.

Technical Topics:

Molding begins with tooling. No matter how good the design, if the tooling is not up to the task, the quality of the parts will suffer.

The Molding Machine

Achieving consistent dimensions and quality requires up-to-date molding machines, operating to specifications, with precise position and pressure control capabilities. The basic construction of a molding machine is fairly straightforward.

Material is fed in through a hopper into a screw and barrel where it is heated to a molten condition. The melt is then injected under high pressure into the mold while the mold is held closed with the high force of a toggle or hydraulic ram. The goal is to melt resin in a very uniform and repeatable fashion, inject it into the mold under very precise and repeatable pressure conditions, and hold the steel temperatures in the entire flow system very stable. After the molten plastic is solidified, the mold is opened and the gear is ejected. It then continues to cool in the open air.

There are many handling and pre-processing requirements for injection molding materials. Engineering polymers quite often must be dried to a specific dew point before use. When parts are made, runners are formed that some shops regrind and put back in the melt. This quite often raises more quality concerns than the slight savings in material expense may justify, and CPIM uses only virgin material.

Injection

The method of injecting the plastic into the mold is very important. In most cases, the plastic should be injected under high pressure very quickly to maintain the good characteristics of the melt completely during the injection. As the mold cavity fills, the injection pressure should be held at the same high value and the speed of injection slowed to maintain that pressure. At the moment when the part is filled, and the molding machine switches over from injection to a pack & hold condition, the plastic melt is held at the same high pressure. This pressure is held for as long as it takes to freeze the gates and achieve the highest weight possible for the molded part. 

Dimensional Inspection in medical Injection Molding

 We produce medical stents for our international clients. However, due to the use of different tools, there have been deviations in the dimensions of the stents, which do not meet the required specifications. As they are current 2.54 mm in diameter and client need to be 2.44 mm in diamete.But it is not the wrong size, but the deviation caused by different measuring tools. After many measurements, it is proved that this position can not be measured with calipers, because the edge of the hole is sharp, and the strength is slightly larger, you can measure the size of the hole, and the best way is to measure it with a gaugeical Injection Molding

Dimensional Inspection in medical Injection Molding

It is crucial to understand that these are special products and therefore require special testing methods to ensure their quality and compliance with international standards.

Dimensional Inspection in medical Injection Molding

The use of different tools has resulted in variations in the dimensions of the medical stents. This deviation from the required specifications is a matter of concern as it can impact the effectiveness and safety of the stents when used in medical procedures. It is imperative that we address this issue promptly and implement measures to rectify the situation.

In order to ensure that the medical stents meet the necessary standards, it is essential to employ special testing methods that are specifically tailored to the unique characteristics of these products. These testing methods should take into consideration the material composition, structural design, and intended application of the stents. By utilizing specialized testing techniques, we can accurately assess the dimensional accuracy, mechanical properties, and biocompatibility of the stents.

Additionally, we must prioritize the implementation of stringent quality control measures throughout the production process to prevent any deviations in the dimensions of the medical stents. This may involve standardizing the use of specific tools, conducting regular inspections, and implementing corrective actions to address any discrepancies.

By addressing the issue of dimension discrepancies in our medical stents and implementing specialized testing methods, we can uphold our commitment to delivering high-quality products that meet the stringent requirements of our international clients. This proactive approach will not only safeguard the reputation of our company but also contribute to advancing healthcare outcomes globally.

In conclusion, the production of medical stents for international clients requires meticulous attention to detail and adherence to specialized testing methods. By acknowledging the impact of tool variations on dimensional accuracy and taking proactive measures to address this issue, we can ensure that our medical stents meet international quality standards and deliver optimal performance in clinical applications.

Electric car pipe joint

 The pipe joint is the connecting piece between the oil pipe and the oil pipe, the oil pipe and the hydraulic components. It needs to meet the requirements of firm connection, reliable sealing, small size, large flow capacity, convenient assembly and good process performance. In the hydraulic system, metal pipes with an outer diameter greater than 50 mm are generally connected by flanges, and oil pipes with small diameters are connected by pipe joints.

car pipe joint

According to the form of the connected pipeline, pipe joints are divided into hard pipe joints, hose joints, quick joints and rotary joints.

Hydraulic quick couplings, also known as quick couplings, are mechanical devices that allow quick, easy, and safe reconnection and disconnection of fluid lines without the use of any tools. Widely used in hydraulic systems, it enables liquids to be transported efficiently and greatly improves work efficiency.

car pipe joint

As an indispensable part of various automobiles, electrical appliances, mechanical equipment and daily necessities, pipe fittings and joints that play a role in connection and fastening have penetrated into every corner of our lives. The functional plastic pipe fittings that complement the traditional metal pipe fittings are more and more widely used by people because of their light texture, strong applicability, corrosion resistance, strong expansibility, and good insulation.

car pipe joint

As the supplier of China’s largest electric automotive pipe connectors company, another area that we are very good at is to participate in the design and development of customers, and provide customers with overall solutions for fastening and electric car pipe joint systems with our expertise and experience. Careful, comprehensive and strong sense of responsibility have enabled us to achieve success in this practice, and have won the trust and recognition of our customers. We regard the trust and recognition of our customers as the most valuable wealth. It gives us the impetus to continue our efforts, spurs us to pursue higher and better pursuits, and grows and progresses together with our customers.

Better functions, better performance, ensuring product reusability to reduce waste, and improving work efficiency to help customers reduce costs, these are our constant pursuits.

How do you calculate shot size in an injection moulding machine?

 Calculating shot size in an injection moulding machine is a crucial step in the manufacturing process. The shot size determines the amount of material that is injected into the mould, and it is essential to get it right to ensure the final product meets the required specifications.

If it is Hot runner, No of cavities (layman's words number of parts to be filled) multiplied by each part weight is Total shot weight or Shot Size.

if it is a cold runner, No cavities multiplied by each part weight added to Runner weight is Shot weight or Shot Size.

Remember the shot size mentioned by the Machine manufacturer for PS. If your material is other than PS, then you have to identify the specific gravity of the material to be processed and then multiply it with the Total shot weight of the machine mentioned in the catalog.

 

To calculate the shot size, you need to consider several factors. These include the size of the mould, the material being used, and the desired part weight. Here's how to calculate the shot size step by step:

1. Determine the size of the mould

The first step is to determine the size of the mould that will be used in the injection moulding machine. This will give you an idea of the volume of material that will be needed to fill the mould.

2. Calculate the volume of the mould

Once you know the size of the mould, you can calculate its volume. This is done by multiplying the length, width, and height of the mould. For example, if your mould is 10cm x 10cm x 10cm, the volume would be 1000 cubic centimeters (cc).

3. Determine the material being used

The next step is to determine the material that will be used in the injection moulding machine. Different materials have different densities, which means they require different volumes to achieve the same weight.

4. Calculate the density of the material

Once you know the material being used, you can calculate its density. This is done by dividing its mass by its volume. The density is usually expressed in grams per cubic centimeter (g/cc).

5. Determine the desired part weight

The final step is to determine the desired weight of the finished part. This will depend on the specifications of the product being manufactured.

6. Calculate the shot size

With all of this information, you can now calculate the shot size. The shot size is calculated by multiplying the volume of the mould by the density of the material and the desired part weight. The formula is as follows:

Shot size = (mould volume) x (material density) x (desired part weight)

For example, if your mould has a volume of 1000cc, the material being used has a density of 1.2g/cc, and the desired part weight is 50 grams, the shot size would be:

Shot size = 1000cc x 1.2g/cc x 50g = 60,000 cubic millimeters (mm3)

In conclusion, calculating shot size in an injection moulding machine is a critical step in the manufacturing process. By following these steps, you can ensure that the final product meets the required specifications and is of high quality.