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.

 

Application of flame retardant plastic materials in new energy automobile parts

 Flame retardant plastic materials are often used in auto parts, especially in new energy vehicles. Flame-retardant plastic materials are more widely used. Especially in charging piles and battery parts, plastic materials are required to be flame retardant. Look at the applications of flame retardant plastic materials in automotive parts.

Flame retardant plastic materials are mainly used in the parts of new energy vehicles. Battery modules, charging piles, charging guns, etc., must be made of flame retardant materials. As the charging connector of electric vehicles, the charging gun is the “axial” connecting the charging facilities such as charging piles and the electric vehicle. The quality of it directly affects the charging performance and safety. The material requirements of the charging gun are relatively high. Common materials include: PBT + GF, PA + GF, weather-resistant PC, etc.

The shell

The shell of the charging pile is generally made of flame retardant PC material. Material characteristics: halogen-free and flame retardant, high surface gloss, excellent electrical insulation properties, and excellent mechanical properties.

The Battery case

Plastic shells are currently the main development direction of power battery shell materials due to their good overall performance. For example, the series of lithium batteries produced by domestic companies are all plastic shells. It is reported that in the power battery standard, corresponding clear flame-retardant requirements are put forward for the battery shell box, and now more and more companies are beginning to use flame retardant plastics for power batteries.

The basic requirements for connector materials: heat-resistant and flame-retardant! The connector contacts are made of metal, which requires a high number of plugs and unplugs. The material is required to have good flame-retardancy, heat resistance, and avoid fire. At present, the commonly used materials for connectors are PBT and PPS, PA, PPE, PET, etc.

Both traditional wires and cables, car charging cables have high requirements for materials and equipment. Because of their special application environment. As the charging process time of electric vehicles changes rapidly, the current intensity is high, and the frequency of use is high. The material is required to have certain high-temperature resistance, aging resistance, and halogen-free flame retardancy. And low smoke during combustion while ensuring good insulation. density.

Advantages of plastic Part

Compared with traditional alloy materials, plastic parts have unparalleled advantages. Plastic products will help reduce the weight of cars. Data shows that for every 10% reduction in vehicle weight, fuel economy can increase by 5%. So new energy vehicles using plastic products can run farther.

Plastic products can also reduce the production cost of car companies. A simple injection mold plastic part can perform the function of welding many metal parts together. The plastic can be molded into a more complex shape than a steel assembly. Which can reduce the integration process. The number of parts used.

In addition, the elastic deformation characteristics of plastic products absorb a large amount of collision energy. Have a greater buffering effect on strong impacts. And play a good role in protecting vehicles and passengers. Plastics have strong corrosion resistance, local damage will not corrode. And steel Once the paint is damaged or the anti-corrosion is not well done. It will be easy to rust and corrode, which will affect the appearance of the car body and cause safety hazards.

According to the composition of the plastic, plastics with the required properties can be prepared by adding different fillers. plasticizers, and hardeners, mechanical strength, and processing and forming properties of the plastic can be modified to meet the requirements of different parts of the car. It can be said that plastics have contributed to the rapid development of new energy vehicles. The rapid development of new energy vehicles has opened up a broad market for plastics.

Plastic fasteners are ubiquity

 Plastic fasteners for the beginning of the installation of fastening fasteners used in connection, a wide range of uses, in the car constitute the four plates are large-scale use. The main types are divided into body fasteners, interior fasteners, chassis and engine fasteners, and electrical fasteners. Including body fasteners mainly for all types of nuts and blocking pieces, interior fasteners mainly for all types of Standard plastic parts, chassis engine to all types of pipe clamp-based. The electrical part of the wiring harness fastening belt and line guard-based.

Plastic fasteners a wide range of different forms, the role of the principle of roughly the same, that is, through the role of fasteners, the two separate parts of the original fixed connection. as the picture shows:

At present, commonly used materials to nylon 6, nylon 66, POM-based, mainly to consider the physical properties of the first indicators of high and low-temperature performance. The second is the impact of performance. The third is the ability to stretch. Because the need to consider Product life and ease of installation, and help reduce body weight.

The product is suitable for chassis, engine, and car interior：

Plastic fasteners are ubiquity

1. Plastic sleeve

Suitable for assembly of silent hinges; for assembly tolerances, DIN h6-H7. Assembled bearing clearance is 1% of shaft diameter; resistant to dirt, climate, and most chemicals.

2. Plastic gears

Plastic gears are made of wear-resistant, self-lubricating polyoxymethylene (POM) plastic for injection molding without the need for additional lubricants after installation. They can be used in environments up to 95 ° C.

3. Plastic strain relief clip

A plastic stress-relief clip is also called a plastic power cable buckle. Can greatly save the relevant production costs, eliminating some additional installation costs and steps, installation, two power cord buckle through the attached hinge or plastic cable easily folded closed. So that the cable clamp, the installation of the power cord buckle must be perpendicular to the surface to be installed. And then use a common force clamp clamped power cord buckle above the specially designed groove will be placed smoothly into the installation location card position. Available in a bullet-shaped, streamlined head design. The product is free from the traditional complex and cumbersome tape guards in a limited space. The product is securely fastened and holds wires and cables to protect them from being pulled And reverse the irregular sharp edges from the edge of the damaged panel. The product in line with UL strict fire-retardant certification. The black thermal stability of nylon injection molding, the maximum temperature of 105 degrees Celsius.

4. Plastic damper

Plastic dampers can be used to control the movement of the flap, distribution box doors and appliance doors, etc. Is a silent mobile silicon dampener improved products, simple installation time-saving? There are 8 kinds of torque to choose from, with self-lubricating material No additional oil, maintenance-free.

5. Plastic grease cap

Plastic grease cap in accordance with DIN71412 and NEN2435 standards. Providing yellow and red two colors, anti-fouling, and lubrication points can be marked.