Plastic

Application of injection plastic parts in the field of digital electronics

PET plastic has good comprehensive performance and is widely used in various fields. In the field of electronics and electrical appliances, PET plastics are mainly used in components with flame retardant requirements.

The advantages of PET plastic

Good heat resistance: heat distortion temperature and long-term use temperature are the highest among thermoplastic general engineering plastics. Reinforced PET is immersed in a solder bath at 250°C for 10s, hardly deformed or discolored, and is especially suitable for preparing soldered electronic and electrical parts.

Good mechanical properties: the bending strength is 200MPa, the elastic modulus is 4000MPa, the creep resistance and fatigue resistance are also very good, the surface hardness is high, and the mechanical properties are similar to those of thermosetting plastics.

High cost performance: Since the price of ethylene glycol used in the production of PET is almost half cheaper than that of butanediol used in the production of PBT, PET resin and reinforced PET are the lowest price among engineering plastics and have high cost performance.

 

Application of PET plastic in the field of electronic appliances

Modified PET plastics are widely used in the field of electronic appliances. Modified PET plastics can be used in the manufacture of connectors, coil bobbins, integrated circuit housings, capacitor housings, transformer housings, TV accessories, tuners, switches, timer housings, automatic fuses, motor brackets and relays.

Polysilon PET plastic

PET plastics used in the field of electronic appliances are mainly reinforced flame-retardant PET plastics. The material has the characteristics of excellent flame retardancy (halogenated & halogen-free), high RTI, easy to color, and complies with ROHS and UL certification. It is mainly used in electrical and electronic parts such as transformer skeletons, connectors, switches, etc. PETFR2300, etc.

 

Injection mold is an important process equipment for the production of various industrial products. With the rapid development of the plastic industry and the promotion and application of plastic products in aviation, aerospace, electronics, machinery, ships and automobiles and other industrial sectors, the requirements of products on molds are also increasing. With the coming of age, the traditional mold design method has been unable to meet today's requirements. Compared with traditional mold design, computer-aided engineering (CAE) technology can improve productivity, ensure product quality, or reduce costs and labor intensity. On the other hand, they have great advantages.

In the processing of injection molds, all kinds of CNC machining are used. The most widely used are CNC milling and machining centers. The application of CNC wire cutting and CNC EDM in the CNC machining of molds is also very common. Straight-walled mold processing, such as concave and convex dies in stamping, inserts, sliders in injection molds, electrodes for EDM, etc. For mold parts with high hardness, machining methods cannot be used, and EDM is mostly used. In addition, EDM is also used for sharp corners, deep cavity parts, and narrow grooves of mold cavities. The CNC lathe is mainly used to process the standard parts of the mold rod, as well as the mold cavity or core of the rotary body, such as the injection mold of the bottle body and the basin, and the forging mold of the shaft and disc parts. In mold processing, the application of CNC drilling machine can also play a role in improving processing accuracy and shortening processing cycle.

Molds are widely used, and almost all the forming and processing of product components in modern manufacturing require the use of molds. Therefore, the mold industry is an important part of the national high-tech industry and an important and valuable technical resource. Optimize the structural design of the mold system and the CAD/CAE/CAM of the mold parts, and make them more intelligent, improve the mold forming process and mold standardization level, improve the mold manufacturing accuracy and quality, and reduce the surface grinding and polishing workload of the mold parts and manufacturing cycle; research and apply high-performance, easy-cutting special materials for various types of mold parts to improve the performance of molds; in order to adapt to market diversification and new product trial production, the application of rapid prototyping technology and rapid manufacturing Mold technology, to rapidly manufacture molding dies, plastic injection molds or die-casting molds, should be the development trend of mold production technology in the next 5 to 20 years.