Not only automobile injection molding parts, other parts should also pay attention to the use of the process of attention to some methods so that we can increase the service life of parts. Yantai Jiade Auto Parts Co., Ltd. to tell you what to pay attention to!

　　The first is to avoid heat, if the engine piston temperature is too high, easy to lead to overheating melting and hold cylinder; rubber seals, triangular tape, tires, etc., overheating, easy to premature aging, performance degradation, shorten the service life; starter, generator, regulator, and other electrical equipment such as coil overheating, very easy to burn and scrap.

　　The second is to ensure the cleanliness of the parts, fuel filter, oil filter, air filter, hydraulic oil filter and various types of filters and other parts if too dirty, will lead to poor filtering effect. Water tank heat sink, air-cooled engine block and cylinder head heat sink, cooler heat sink and other parts are too dirty, will lead to poor heat dissipation and high temperature.

　　Automotive injection molded parts to ensure normal service life depending on the more important point is that the engine cylinder gasket can not be installed in the installation of reverse, otherwise it will lead to premature erosion of the cylinder gasket damage, the engine fan blade installation can not be reversed; on the direction of the pattern of the tires, the herringbone pattern tires, the installation of the ground after the imprint should be made so that the herringbone tip pointing to the rear.

　　For plastic products we should not be particularly unfamiliar, for its product characteristics we need to understand what it is.

　　First of all, plastic products are harder than PE and have a higher melting point. Because the homopolymer type of PP temperature below 0 ℃ is very brittle, so many commercial PP materials are added to the 1 ~ 4% ethylene irregular copolymer or higher ratio of ethylene content of the clamp segment copolymer. Copolymer-type PP materials have lower heat distortion temperatures, lower transparency, lower gloss, lower rigidity, but have greater impact strength.

　　The strength of PP increases with increasing ethylene content, and the surface stiffness and scratch resistance of this material is excellent due to the high degree of crystallinity.PP does not suffer from environmental stress cracking. Typically, PP is modified by adding glass fibers, metal additives or thermoplastic rubber.

　　For the same MFR, the copolymer type is stronger than the homopolymer type.Due to crystallization, the shrinkage of PP is quite high and the directional homogeneity of the shrinkage is much better than that of materials such as PE-HD.All these special treatment steps increase the performance of the plastic products to varying degrees.