How to quality control in injection moulding in our company

 Quality control in injection moulding is a crucial aspect of our company's manufacturing process. It ensures that the products we produce meet the highest standards of quality and reliability. Implementing effective quality control measures not only minimizes defects and rework but also enhances customer satisfaction and strengthens our brand reputation. Here are some key steps we take to ensure quality control in injection moulding:

[caption id="attachment_2392" align="alignnone" width="229"] quality control in injection moulding[/caption]

1. Raw Material Inspection:

We start by thoroughly inspecting the raw materials used in the injection moulding process. This includes checking the quality and consistency of the polymers, additives, and any other materials used. Any deviation from the specified standards is identified and addressed to prevent defects in the final products.

2. Mould Inspection:

The quality of the mould directly impacts the quality of the moulded parts. Regular inspection of the moulds is essential to identify any wear, damage, or deformation that could affect product quality. By maintaining well-maintained and properly calibrated moulds, we can ensure consistent and precise manufacturing.

3. Process Monitoring:

Throughout the injection moulding process, we employ advanced monitoring techniques to track key parameters such as temperature, pressure, and cycle times. This real-time monitoring allows us to detect any variations or anomalies and take corrective actions immediately to maintain product quality.

4. In-process Quality Checks:

At various stages of production, we conduct in-process quality checks to assess the conformity of the moulded parts to the specified dimensions, tolerances, and visual appearance. This proactive approach enables us to identify and rectify any issues before they escalate, thereby minimizing scrap and rework.

5. Final Product Inspection:

Before the finished products are released for packaging and shipment, they undergo comprehensive inspection to ensure they meet all quality criteria. This includes dimensional checks, functional testing, and visual inspection to verify surface finish and integrity.

6. Continuous Improvement:

Quality control is an ongoing process, and we are committed to continuously improving our injection moulding processes. We regularly analyze quality data, gather feedback from production personnel, and implement corrective and preventive actions to enhance our manufacturing capabilities.

By diligently adhering to these quality control measures, we uphold our commitment to delivering injection moulded products of exceptional quality. Our dedication to quality control not only benefits our customers but also strengthens our position as a trusted supplier in the industry.

How To Measure A Good Plastic Injection Mold Manufacturer

 

How To Measure A Good Plastic Injection Mold Manufacturer

Choosing a good plastic injection mold manufacturer is challenging work.  What’s the most concern is the price. No many manufacturers can give a good price injection mold service, china plastic injection molding particular in the USA. We know that the labor costs in the USA are 8 times higher than in China. So, the result is that customers pay high labor costs for these companies.

Why not choose a developing country to do this job?

China becomes the largest manufacturer in the injection molding industry, an injection molding company with low costs and high-quality service. It is more friendly to some SMEs.

Reliable mould manufacturer's standard

1. Before choosing a reliable injection mold manufacturer, we can start with the developed products and the market positioning of the products. Injection mold is used in many industries, such as medical equipment shell, household appliances mold, game shell mold, and so on. Not the biggest companies are the best fit. Selection should be based on product items and product conditions so that unnecessary costs can be controlled and saved.

2. Understand whether the injection mold company is a one-stop service manufacturer, such as mold design and manufacturing, injection molding, surface treatment of plastic shell, etc. Therefore, it can avoid multiple suppliers to participate in the production of products. Which can greatly reduce risks and reduce costs?

3. Choose an experienced team. For a high-quality injection mold factory, a rich production experience is also essential. Only has rich production experience, only produces each kind of product injection mold factory, can face each kind of production question to solve the problem.

4. The quality of the injection mould must be guaranteed and delivered on time. In order to communicate effectively with the manufacturer, it is necessary to understand the rationality of mold design. Design changes should be minimized in their own right and by the manufacturer. The injection mold manufacturer shall have sound mold design and processing techniques and maintain good communication between product engineers and mold engineers to ensure product quality and delivery without delay.

5. The after-sales service capability of the plastic mold factory must also be checked.

CNMOULDING  is the best choice

We have 20 years of experience in making injection molds for the EU and the US market. So we know the Standards and requirements very well. Our molds are always with excellent quality, competitive price, short lead time, it accumulates a good reputation for us.

I think you need a good and trustworthy mold manufacturer to work with China plastic moulding you for injection molds and molding the plastic products.

1. Cold & Hot Runner / Single & Multi-Cavity /injection molding/Insert Molds/ Over mold
2. Prototype /Prototype Tooling.
3. Mass production.
4. CNC machining.
5. Silicone and rubber mold and product production
6. Automotive mold, Optical mold, and medical mold

Our engineer can make the 3d data only if you can provide samples and optimize the 3D drawing benefit to mold building.

After the design confirmed, we will send you a mold making schedule with T1 sampling time. We will send you a tooling schedule with pics of mold weekly until the mold is finished and you get good samples. After the test. We will send you a part measuring report an injection parameter, and a video of the testing.

So if you want to find the best plastic injection mold manufacturer, please feel free to contact me, we are your best choice!

New energy vehicles put forward new requirements for plastics

 New energy vehicles have been gaining popularity as the world is shifting towards sustainable energy sources. These vehicles, which are powered by electricity or other alternative fuels, have put forward new requirements for the materials used in their manufacturing. Plastics, in particular, have become an essential component in the production of these vehicles due to their lightweight and durable properties.

However, the traditional plastics used in the automotive industry are not suitable for new energy vehicles. These vehicles require materials that are not only lightweight and durable but also resistant to high temperatures and have excellent electrical insulation properties. Plastics that meet these requirements are crucial for the proper functioning and safety of new energy vehicles.

The use of plastics in new energy vehicles has several advantages. Firstly, it helps to reduce the weight of the vehicle, which in turn increases its energy efficiency and range. Secondly, it reduces the overall production cost of the vehicle, making it more affordable for consumers. Thirdly, it enables the design of complex shapes and structures that are not possible with traditional materials.

New energy vehicle requirements for flame retardant properties of plastic materials

To meet the requirements of new energy vehicles, manufacturers are developing new types of plastics that are specifically designed for this purpose. These plastics are engineered to have high strength, excellent thermal stability, and electrical insulation properties. They are also recyclable and environmentally friendly, making them a sustainable choice for the automotive industry.

One such plastic is polyamide 6 (PA6), which is widely used in the production of new energy vehicles. PA6 has excellent mechanical strength, thermal stability, and electrical insulation properties. It is also lightweight and can withstand high temperatures, making it an ideal material for use in the battery packs and other components of new energy vehicles.

Another plastic that is gaining popularity in the automotive industry is polyphenylene oxide (PPO). PPO is known for its excellent electrical insulation properties and thermal stability. It is also lightweight and has a high resistance to chemicals and UV radiation, making it an ideal material for use in new energy vehicles.

In conclusion, the increasing demand for new energy vehicles has put forward new requirements for plastics used in the automotive industry. Plastics that are lightweight, durable, and have excellent thermal stability and electrical insulation properties are essential for the proper functioning and safety of these vehicles. Manufacturers are developing new types of plastics that meet these requirements and are sustainable and environmentally friendly. The use of these plastics in new energy vehicles will help to reduce their weight, increase their energy efficiency and range, and make them more affordable for consumers.

How much injection molding cost in China

 

Various injection molded part cost all of industry

All kinds of molded parts have obvious advantages in China!

Injection Molding and Mould making in China are 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 tooling and mould making strategy for you. We have different ways for a complex small product and large tools and moulds. If you need to have real molded parts in hand within 2 weeks. Our prototyping team services have very cost-competitive.

Does injection molding cost expensive in china?

Compared to the cost of injection molds, injection molding products can easily become the cheapest part of the project. And can significantly reduce the cost of running a small part. The main factors affecting the cost of injection molding products are the material. And the structure of the parts, the number of parts produced.

Plastic Tooling for local injection molding or Export

If your company wants the lower tooling prices, but still needs the flexibility of injection moulding 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 plastic injection moulding in outside as well.

Let us re-engineer your parts for lower injection molding 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.
We also have a lot of experience in the overmolding process, the production cost is only 30% in the United States

Saving next project injection molding cost from material first

Plastic material selection is another consideration to determine the cost of plastic
injection molds. For example, any poly-carbonate fiber and nylon plastic products
are prone to daily mold wear. The designer must choose the use of hardened tool steel
mold for injection molding.

The liquid cavity of plastic materials, often pays great attention to mold maintenance
after use, because this kind of material will have a strong corrosion effect on the
mold surface, if not properly handled, in future production you will face a lot
of unexpected problems. So your cost is not reduced but increased

China automotive plastic parts company

 

China automotive plastic parts company Will Meet More Opportunities In Next Year

Due to its light volume, wide design space, excellent performance, and low manufacturing cost. Plastic has become the preferred material for automobile manufacturing in the 21st century. In recent years, the increasing demand for energy saving, environmental protection, and durable and light vehicles in automobile consumption and production has stimulated the demand for plastics in the automobile industry. Demand for automotive plastics is forecast to exceed $50 billion by 2024, according to Global Market Insights(GMI) industry report.

Automotive parts materials to lightweight development

At present, the demand for cars is turning to light multi-function vehicles and other light vehicles such as minivans, which promotes the development of automotive materials to lightweight.

According to the national policy of China’s automobile industry. In the coming years. The application of lightweight materials is fulfilled in automotive products to decrease fuel consumption. In the process of automotive weight reduction. The injection molding of plastics parts is widely considered as one of the best alternative materials. At present, more than 90 percent of automotive plastic products are produced by plastic injection molding. The rapid development of the automotive industry provides huge market space for relevant plastic products and plastic injection mold companies.

 

[caption id="attachment_3100" align="alignnone" width="550"] China automotive plastic parts[/caption]

The future global automotive plastics parts market demand is strong

Global passenger vehicle production and market demand growth, and automotive lightweight trend to promote the growth of automotive plastic demand. Automotive plastics are used in a wide range of applications. For example, automotive interior and exterior automotive hood and other parts. It can reduce the overall weight of the car, beautiful, and help to play the body insulation, vibration and noise control, and other functions.

According to statistics, the average amount of plastic per vehicle achieves developed 150 kg. The average amount of plastic parts per car is only 100 kg in China Market, compared with developed countries, there is much room for growth. China’s automobile industry is expected to increase the ratio of china prototype of the number of plastic products in the coming years. Thus increasing the demand for high-precision, high stability of plastic products. Meanwhile, the low-pressure injection mold and other high-end rapid prototyping plastic will also usher in good development opportunities.

Also, the plastic injection molded parts will be much cheaper than stamping or die casted parts. The more plastic parts used in cars, the cheaper price will be, then it will stimulate the car market, let more and more medium-income people can afford the car. In the meantime,

China plastic injection molding companies also get more orders from the market increase.

The Process Of China Mould Maker

The Process Of China Mould Maker:

1、China Mould maker design control
2、China Mold Maker steel certificated
3、China mould makers steel hardness inspection
4、China mould company electrodes inspection
5、China Mould manufacturer core and cavity steel dimension inspection
6、China mold makers  pre-assembly inspection
7、China mould making  trial report and samples inspection
8、China mold making pre-shipment final inspection
9、Export mould package inspection

 

CN-moulding is a professional china mould maker which is engaged in plastic injection

Our company focus on mold making and stamping die making for over 16 years. With advanced in-house
machines and professional workers, we can achieve your satisfaction by supplying you with both qualities high precision injection mold ((+/- 0.02mm) and large injection mold (2200mm),.Our injection molds are widely used in toys and games, electrical appliances, automotive, industrial parts, and other molding goods. We usually exported our molds to Europe, America, Asia, and other regions. High quality, reasonable price, and on-time delivery have earned us a good reputation in our customers.

We can provide a competitive price and better service for you, helping you win more orders, to
prove our sincerity and capability. We can make one or two molds for you without charging any profit
until you think we are able to meet your requirements, we then start a cooperation relationship.

Injection mold cooling

 

Design and cooling system

The plastic injection mold cavity is cooled by a cooling channel on a fixed form. The injection mold core is provided with cooling water holes inside, which are separated by a water separator in the middle. The cooling water enters by the cooling water holes on the supporting plate. And rises up to the upper part of the core along one side of the water separator plate, turns over the water separator, and flows to the other side. And then flows back to the cooling water holes on the support plate. The second core is then cooled and the injection mold is finally discharged from the cooling water hole on the support plate.

The cooling system use value

The cooling system of plastic injection mold directly influences the production efficiency and quality of plastic parts. Cooling effect of the cooling system determines the cooling time. While the cooling time of plastic injection mold takes up about 2/3 of the entire injection mold cycle. A complete cooling system can significantly reduce the cooling time, thus improving the efficiency of injection mold production.

Cooling system layout

The deformation and internal residual thermal stress of the plastic parts are often caused by uneven cooling. By using CAE technology, the economic cooling time, reasonable size, and arrangement of injection mold cooling pipe can be obtained. So that the plastic parts can be cooled as uniformly as possible. And the cooling system for plastic injection molds is designed to maintain proper and efficient cooling of molds. The cooling hole should be of standard size for easy processing and assembly. When designing the cooling system, the mold designer must determine the following design parameters according to the meat thickness and volume of the plastic part. The position and size of the cooling channel, the length of the channel. The type of channel, the configuration, and the connection of the channel. And the flow rate and heat transfer properties of the coolant.

Actual Combat Mold Maker

A lot of our injection experience is in medicine machines, so stretch-proof is visible and to be avoided. We formed a medical mechanical shell and internal structure. So we have high antioxidant materials, with high precision parts. We measured part deformation with a 3d coordinate measuring instrument. We have also increased the forming time of mould, mixed with injection molding additives.

Typically we set the injection mold temperature near the critical point of the plastic. After the mold cooling time is long enough, and then pull the part out of slow cooling air.
Naturally, these were high quality and accurate. My key is to let the resin into the injection mold quickly, slow cooling down all parts of the critical point. And then slowly cooled to room temperature. Of course, there is a way to inject the injection mold preheating. And then cooled slowly and uniformly to accelerate this will be an asset.

Air Cooling use in Injection Mold

In recent years, our company try other ideas

Through the air cooling switch settings, although able to solve the problem, but because only injected a large amount of high-pressure air into the storage tank in order to get good results, the development cost is too high, is not a good way.

We did not give up, professional engineers began a new attempt respectively we use customers are widely used in medical products in the ABS and NYLON material into the warm water for 20 minutes, 0 degrees after immersion in cold water, so that through the solution temperature so as to keep the temperature at 70’C.

The critical temperature we set for the best cooling index. Put into the 100 products of each batch of a tank for cooling, completely solve the heat caused by the shrinkage and warpage. Even if it contains talcum powder, glass fiber is also applicable in this way.

Through a 100 mm diameter cylindrical shell, the medical project length of 1 meter, efforts to control temperature changes of each process.

Whether it is injected into the mold cavity from the material or product in ice water cooling time. We always grasp the critical point for 70 degrees of success is not only a result, and the profit is guaranteed. Any questions about technology products, according to the product, mold manufacturing, injection molding to find solutions.