Injection Molded Plug Bracket

Material:PC

What is injection molding?
Injection moulding is a manufacturing process for producing parts by injecting molten material into a mould, or mold. Injection moulding can be performed with a host of materials mainly including metals (for which the process is called die-casting), glasses, elastomers, confections, and most commonly thermoplastic and thermosetting polymers. Material for the part is fed into a heated barrel, mixed (using a helical screw), and injected into a mould cavity, where it cools and hardens to the configuration of the cavity. Injection moulding is widely used for manufacturing a variety of parts, from the smallest components to entire body panels of cars. Advances in 3D printing technology, using photopolymers that do not melt during the injection moulding of some lower-temperature thermoplastics, can be used for some simple injection moulds.

Typical application range of polycarbonate (PC):
Electrical and commercial equipment (computer components, connectors, etc.), appliances (food processing machines, refrigerator drawers, etc.), transportation industry
(The front and rear lights, dashboard, etc. of the vehicle).

Polycarbonate (PC) injection molding process conditions:
Drying treatment: PC material is hygroscopic, and drying before processing is very important. The recommended drying conditions are 100°C to 200°C, 3~4 hours. The humidity before processing must be less than 0.02%.
Melting temperature: 260~340℃.
Mold temperature: 70~120℃.
Injection pressure: Use high injection pressure as much as possible.
Injection speed: Use low-speed injection for smaller gates and high-speed injection for other types of gates.

Polycarbonate (PC) chemical and physical properties:
PC is an amorphous engineering material with particularly good impact strength, thermal stability, gloss, anti-bacterial properties, flame retardant properties and pollution resistance. The otched Izod impact stregth of PC is very high, and the shrinkage rate is very low, generally 0.1%~0.2%. PC has good mechanical properties, but poor flow properties, so the injection molding process of this material is more difficult. When choosing which quality PC material, it should be based on the final expectation of the product. If the plastic parts require higher impact resistance, then use low-flow PC materials; on the contrary, you can use high-flow PC materials, which can optimize the injection molding process.