For Injection mold and plastic mold service contact us at affordable pricing

 Since more than 15 years ago, CN Moulding Plastics Company has offered its clients the finest in high-level mould creation and cutting-edge injection moulding in China. Why did you choose us? a one-stop shop for all of your development and supply needs, including fast prototyping for industrial design, mould making, and finished plastic products. Our goal is to assist clients in bringing their products to market as quickly and affordably as possible to beat the competition. If you want assistance with plastic product design or new product development. Our Team will collaborate with you to advertise your goods more quickly. Precision production moulds, specialised plastic moulding, and integrated assembly are our areas of expertise. 

 

We were dedicated to offering flexible, injection mold services that were solution-driven. We have cutting-edge CMM machines, CNC machines, wire-cutting machines, and other standard machines. The 100- to 650-ton injection machine Almost any kind of plastic may be injected, including ABS, PC, PBT, TPE, PP, PMMA, PPS, and nylon, among others. P-20, H-13 (complete hardened mould with HRC 52–54), 420 SS (Stainless Steel), ETC., or other steels as requested by clients are the types of steel we use to manufacture moulds.

It is the manufacturing technique that is most often utilised to create plastic mold components. Injection moulding is used to create a vast range of items, each with a unique size, level of intricacy, and use. Utilizing a mould, an injection moulding machine, and raw plastic material are all necessary steps in the china moulding firm process. In the injection moulding machine, the plastic is melted and then injected into the mould, where it cools and solidifies to form the finished object. The next section goes into further information about each phase of this procedure.One of the most popular techniques for producing plastic parts and components is injection moulding. To construct a frame shape, raw resin material is injected into pre-existing injection moulds. A variety of items may be produced using the procedure. Include goods from the automobile, medical, home appliance, precision electronic, and packaging industries, among others. How does the price stack up . Visit us online at http://www.plastic-injectionmoulding.com/

beauty equipment shell

 

This is the shell of the beauty equipment customized by our company for the customer. This product is large in size, relatively heavy, and has high appearance requirements. We use injection molding. There are also a lot of beauty equipment shell is made of FRP material, but the performance of the shell assembly of FRP material is poor, and the screw and FRP material connection degree is low. The most important point is that glass fiber reinforced plastic material is not environmentally friendly, very big pollution to the environment

This ABS is made by injection molding. The main component of plastic is polymer resin, that is, synthetic resin. The additive component is relatively less, which can also achieve the effect of light weight and high strength! Although sharp objects scale relatively resistant glass fiber reinforced plastic materials is poor, but plastic hairdressing instrument chassis strong toughness, hardness, balance is good, strong plastic line, streamline can make all kinds of finished products, and the instrument chassis type of activities can be made, easy to assemble again, screw and plastic board is easy to connect, the overall strengthening of chassis, And one of its biggest advantages is that it has little environmental pollution and can be recycled!

Beauty equipment shell often use ABS material, ABS material has excellent mechanical properties, toughness, impact resistance, not easy to damage. The material is easy to process, the finished product has good dimensional stability, good surface gloss, high thermal deformation temperature and good chemical stability. But want to achieve brilliant color effect need to carry out the spray painting process. It is recommended to use non-spraying material to produce the shell of beauty instrument, which can save the spray painting step and reduce the emission of harmful gas.

Precision injection molding characteristics

Precision injection molding characteristics

     The Precision injection molding is generally referred to as the precision of forming parts and surface quality is demanding high technology, some people think that precision injection is the size of plastic parts to achieve the accuracy of 0.01 ~ 0.001 mm injection molding process. In recent years, with the electronic, medical, communications, automotive, and other industries. With the rapid development of people’s plastic products, high precision, high-performance requirements. The traditional plastic molding process has been difficult to meet the current high standards. Is one of the most important plastics molding methods. Therefore, precision injection molding technology more and more people’s attention. Making precision injection molding technology continues to progress, new technology continues to emerge. Factors that affect precision injection molding require high dimensional accuracy, low warpage, excellent transfer characteristics, and excellent optical properties.

Therefore, it is on the injection molding machine, injection mold, molding process, raw material properties. And formulations have special requirements, affecting the many factors of precision injection molding. According to the current actual production point of view, the impact of precision injection molding factors are the following aspects:

1. Plastic shrinkage design of precision plastic products, plastic shrinkage should be considered.
2. The shape and size of the product The shape and size of the plastic parts have a great impact on the accuracy of the parts, the production practice shows that the more complex the shape of the product and the larger the size, the lower the accuracy
3. Mold structure The accuracy of plastic parts and mold cavity number and production volume are closely related. It is also shown that the accuracy of the single-cavity mold structure is higher than that of the multi-cavity mold, and the accuracy of small-mass production is higher than that of large quantities.

Daily plastic products

1, PET, polyethylene terephthalate

Main applications:

The most common use as beverage bottles and other transparent screen protection film protective film. PET can also be spinning, that is, we often say polyester. In addition there are many engineering applications PET

Caution:

Non-toxic, but the synthesis process may remain single, low molecular weight oligomers and side reaction products such as diethylene glycol, these are some toxic, PET raw material for beverage bottles countries have strict standards.

PET plastic higher melting point. But generally do not recommend reusing bottles, especially for loading water. Since PET bottles are generally thin, manufactured using blow molding method, when the bottle is heated to about 90 ℃ rearrange, and the internal stress due to the role of PET molecular chains, and the contraction distortion of the bottle experience, this time using easily result in burns. The higher temperatures will increase the risk of harmful substances in the material eluted.

2, PE, polyethylene (high density polyethylene: HDPE; low density polyethylene: LDPE)

Main applications:

PE is currently the most widely used plastic, with different modification methods, PE can be used in all aspects of daily life. More representative, including plastic buckets, film, paper cups wall, pipes and cable jacket and so on.

Caution:

PE itself is non-toxic. However, the production will be used in processing or modification of some additives, such as fillers, pigments or stabilizing aid. Some additives are toxic. Since PE products will soften or even melt at higher temperatures, you should try to avoid higher water temperatures under 100 ℃.

3, PVC, polyvinyl chloride

Main applications:

PVC is now used for the manufacture of some cheap leather, floor mats, water pipes, etc.; due to its good electrical performance has a certain self-retardant properties, is widely used in the manufacture of wire and cable sheath. In addition, PVC is widely used in industrial fields, especially for acid corrosion in high demand areas.

Caution:

PVC production uses a lot of plasticizer (plasticizer such as DOP) and heat stabilizers containing heavy metals, and the synthesis process is difficult to eliminate the presence of free monomers, which are considered to be toxic. So PVC in contact with the human body, especially in medicine and food applications, is gradually being replaced by PP, PE.

PVC is a non-high-temperature plastic, can not be used at higher temperatures.

4, PP

   Main applications:

   PP is also very broad range of use, everyday items such as packaging, toys, basins, buckets, hangers, cups, bottles, etc.; engineering applications such as car bumpers. PP spun yarn is known as polypropylene, textiles, non-woven fabrics, ropes, nets and other products are common.

Caution:

 PP and PE processing methods and the use of similar, itself non-toxic. Possible threats from the processing and modification additives. Especially due to poor weather PP, used in the production of anti-aging agent may contain heavy metals. Products compared to PE, PP products slightly better heat resistance, typical Lock & Lock glass using temperature can reach 110 ℃, but then there is a high temperature melting softening and dangerous, and should be avoided.

5, PS

Main applications:

Cheap transparent products, foam, CD boxes, cups, snack, insulation lining and so on.

Caution:

Toxic materials for the synthesis of polystyrene by appropriate synthesis process, has very little residual monomer polystyrene, glass, etc. but now has very little use of this material. Polystyrene flammable, especially after PS foam. Combustion will produce large amounts of toxic gases. In some high-level house on fire incidents, due to the insulating layer materials using a PS foam board is widely used, a lot of smoke and toxic gases generated by the fire became the main reason leading to a large number of casualties.

Overview of China Auto Mould

 

Overview of China Auto Mould

China Auto Mould

The rapid development of China's automobile industry has brought a broad development space for domestic automobile molds. In addition, due to cost and market factors. The focus of mold manufacturing in developed countries has gradually shifted to developing countries represented by China. Comprehensive factors at home and abroad have promoted the rapid development of the domestic automotive mold industry. And many emerging automotive mold companies have emerged. According to statistics, injection molds account for about 37%. China has become a veritable automobile mold manufacturing country.

 

China’s automotive mold production capacity is extremely advantageous in the world. However, due to the slow technological improvement of domestic high-end automotive mold companies, technical innovation capabilities. And insufficient capabilities in R&D and application of new mold technologies. The development capabilities of domestic high-end molds are not yet complete. To meet the supporting needs of the domestic automobile industry. A large part of high-end automobile molds still needs to be imported. Therefore, the domestic automobile mold industry needs to make up for this shortcoming as soon as possible to make up for a major shortcoming of my country's automobile mold industry.

 

As China's top ten industries for revitalization

 China Auto Mould

China's automobile industry has been supported by national policies, coupled with the promotion of autos to the countryside. And China's major auto companies have increased their production, reaching 40 million vehicles in 2020, maintaining the world's first position in production and sales. It is understood that about 1,500 molds are needed to manufacture an ordinary car, among which are close to 1,000 stamping molds and more than 500 interior trim injection molds. Affected by the rapid development of China's auto industry. China's auto mold industry has shown rapid growth and its market capacity has continued to expand.

 

With the gradual increase of China's automobile production year by year. Domestic and foreign automobile mold companies have shown their talents in the Chinese automobile market. Meeting the hot domestic demand and export demand to a certain extent. And at the same time. It has created a new generation in my country's automobile mold industry. Good opportunity. It can be seen that the prospects of China's automobile mold industry are very broad.

 

Scientific management and informatization are the development direction of mold enterprises

 

Another important aspect of the development of automobile mold technology is scientific and information management. Scientific management has enabled mold companies to continue to develop in the direction of Just-in-Time Manufacturing and Lean Production. Enterprise management is more precise, production efficiency is greatly improved, and ineffective institutions, links, and personnel are continuously streamlined. With the progress of modern management techniques. Many advanced information management tools, including enterprise resource management systems (ERP), customer relationship management (CRM), supply chain management (SCM), project management (PM), etc., are used in mold companies It is widely used.

 

Refined manufacturing of molds is an inevitable trend

 

The so-called refined manufacturing of molds refers to the development process and manufacturing results of molds. It is specifically manifested in the rationalization of the stamping process and mold structure design. High precision of mold processing, high reliability of mold products, and strict technical management. Sex. Refined mold manufacturing is actually not a single technology, the second is a comprehensive reflection of design, processing, and management technology. The realization of refined mold manufacturing not only depends on technical excellence but also on strict management.

 

China is the world's largest country in automobile production and sales. The number of automobiles is also expected to be the largest in the world, but it has never been able to produce its own high-end cars. This has a lot to do with the lagging development of the automobile mold industry. Which is known as the "mother of the automobile industry". Auto mold refers to the mold used in the automotive field, known as the "mother of the automobile industry". More than 90% of the parts in automobile production need to be formed by molds, and automobile body molds, extensive huge and medium-sized panel molds. Are used for body manufacturing. An important part of technology is also a key link in the formation of autonomous vehicle development capabilities.

Automobile mold products include automobile cover molds, tire molds, interior, and exterior plastic parts molds, automobile lamp molds, automobile bumper molds, automobile dashboard molds, etc.

Die-casting features

 

Compared with other metal forming processes, the Die-casting features are:

(1) productivity is extremely high

The production process is easy to realize the mechanization and automation. General cold chamber Die casting machine every eight hours can be 600 to 700 times the Die-casting, hot-pressing Die-casting machine every eight hours to Die-casting 3 000 to 7 000 times. And a Die-casting mold cavity often more than one, so that the number of Die-casting production will also exponentially increased.

(2) High dimensional accuracy of the casting

The size of stability, consistency, and less processing allowance and a good assembly. Die-casting of the accuracy of up to IT11 ~ IT13 level, and sometimes up to IT9 level. Surface roughness values ​​are generally Ra0.8 ~ 3.2, the lowest up to Ra0.4. General Die castings only a few parts of the size of machining, and some parts without even mechanical processing can be directly assembled to use. This high utilization of materials, up to 60% to 80%, a rough utilization rate of 90%.
 

(3) Casting dense organization, with high strength and hardness.

As the metal liquid is solidified under pressure, and because of high-speed filling, the cooling rate is extremely fast, so that the casting surface to generate a layer of the cold hard layer (about 0.3 ~ 0.8mm), the layer of metal grain is small, dense organization. Therefore, high strength and hardness of Die-casting, solid wear-resistant. When the Die wall thickness is appropriate and uniform, its strength is higher.

 
(4) It can be a complex casting shape

Clear-cut thin-walled deep cavity casting, because of the liquid metal under high pressure to maintain high mobility.
The minimum wall thickness of zinc alloy Die-casting parts can reach 0.3 mm, aluminum alloy is about 0.5 mm. The minimum casting diameter is 0.7 mm and the minimum pitch of the castable thread is 0.75 mm.

Die-casting assembly features

 

(1) The inlay casting method eliminates the assembly process. Simplifies the manufacturing process. Parts of other materials such as magnets, brass sleeves and insulating materials can be embedded directly into specific parts of the die casting to meet specific requirements, eliminating the need for assembly processes and simplifying the manufacturing process.
 
 
(2) Casting the existence of porosity, but generally, still, meet the requirements. As the filling of liquid metal is extremely fast, it is difficult to completely remove the gas entrained in the cavity during filling, which results in the presence of pores and oxidized inclusions in the die castings, thereby reducing the quality of the Die castings. Therefore, the general die casting can not be heat-treated, and should not work at high temperatures. Similarly, do not want to mechanical processing, so as not to expose the pores under the casting surface.
 
 
(4) The size of the Die-casting die-casting machine by clamping force and size constraints mold, so the production of large-scale Die casting production is limited. At present, the large-scale Die-casting machine has been developed, large parts die casting problem is gradually being resolved.
 
(5) The Die-casting process is only suitable for mass production. As the high price of the Die-casting machine, Die casting mold manufacturing costs are high, long hours, maintenance costs are high, so the total cost of production, not small batch production.

The application status of plastics in medical apparatus

 Medical equipment involves multiple sectors pharmaceuticals, machinery, electronics, plastics, etc., in which the rapid development of plastic medical devices. Since the 1930s, people first used synthetic polymer materials. Since celluloid film is made as an artificial kidney dialysis membrane used in clinical success. Polymer materials are gradually replacing traditional inorganic materials such as metals, glass, ceramics, phosphorus gray stone for the preparation of medical devices.

This is because:

(1) A polymer material with good mechanical properties and chemical stability, more suitable for medical use;

(2) A rich source of polymer materials, inexpensive, disposable medical supplies for made to avoid the traditional material products due to high prices. And had to repeatedly use disinfection and problems caused by secondary infections;

(3) Or more easily modified plastics have been good tissue compatibility, blood compatibility of products;

(4) Made of plastic low cost, suitable for a variety of molding methods, ease of processing into complex shapes. And the development of new medical products.

Compared with ordinary plastics, medical plastics require higher:

(1) Since most toxic monomers and oligomers, so medical plastics are strictly limited to the residual of the foregoing;

(2) Plastic in the polymerization process inevitably comes into contact with the reactor, metal catalysts. Which often contain trace metal ions, according to the medical plastics GB requirement for zinc, lead, cadmium, copper, barium, tin, and other metal ions residual cases are clearly defined;

(3) Resin requirements for medical plastics with high purity, narrow molecular weight distribution;

(4) Plastic processing or modified in the process need to add various additives. Such as the amount of plasticizer in PVC medical products often as high as 30-60%, thus requiring to maximize the use of toxic chemicals. To prevent long-term use or reduce the precipitation of additives to affect product performance and treatment;

(5) In accordance with the requirements of medical plastic, often need to make products with surface hydrophilicity, anti-radiation sterilization, and other functions.