How to avoid plastic shells becoming sticky

Thursday, 13 September 2018

Part requirements: There are no special requirements for strength and heat resistance. They are generally used to replace steel and other materials. However, due to the large batch size, high productivity is required, the cost is low, and sometimes th…

Part requirements: There are no special requirements for strength and heat resistance. They are generally used to replace steel and other materials. However, due to the large batch size, high productivity is required, the cost is low, and sometimes the appearance is required. Mainly used in: car regulator and speaker rear cover, motor cover, various instrument covers, covers, fasteners, etc. Main materials: high-density polyethylene, polystyrene, polypropylene, etc. These materials are only subjected to low loads and can be used at 60° to 80°.
Transparent structural parts: In addition to the above requirements, it must have good transparency, mainly used for; transparent cover, oil mark, oil cup, optical lens, signal light, etc. Main materials: modified plexiglass, modified polystyrene, polycarbonate.
Wear-resistant force transmission parts: required high strength, rigidity, toughness, wear resistance, fatigue resistance, high heat distortion temperature, stable size, mainly used for bearings, gears, racks, etc. Materials are: nylon, MC nylon, polyoxymethylene, the use temperature can reach 80 ° ~ 120 °.
Reduced grinding self-lubricating parts: the mechanical strength requirements are often not high, but the moving speed is high, so it is required to have a low friction coefficient, excellent wear resistance and self-lubricating, mainly used for; piston rings, mechanical dynamic sealing rings , fillers, bearings, etc., the main materials: polytetrafluoroethylene, polytetrafluoroethylene filled polyoxymethylene, low pressure polyethylene at low load, low speed.
High-temperature resistant structural parts: In addition to the requirements of wear-resistant force transmission parts and wear-reducing self-lubricating parts, it must also have high heat distortion temperature and high temperature creep resistance, mainly used for: high-speed work structure transmission parts such as automobiles Speed cover, bearings, gears, valves, seals. Main materials: polyphenylene ether, fluoroplastic, polyphenylimine, and various glass fiber reinforced plastics, etc., can be above 150 °.
Corrosion-resistant equipment and parts: It has good corrosion resistance to chemicals such as acid, alkali and organic solvents, and also has certain strength. It is mainly used for: chemical containers, pipes, valves, fans, etc.

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