SINCERE TECH is a professional plastic injection moulding company China, offering customers the best custom injection molders solutions service.

First, we would like to share you some basic knowledge of plastic injection molding

Thermoplastic plastic injection molding method that is molten plastics material and then injected into its membrane cavity( we call plastic mold). Once the molten plastic into the mold, according to it by cold-like cavity molding into a certain shape. The shape is usually the final product, or as in the installation of the final product is no longer required before the use of other processing. Many of the details, such as the Department of uplift, rib, screw, can step in the injection molding operation out.

injection molding machine has two basic components: for melting and plastic injection into the mold and die equipment installations. Die devices and the role is:plastic mold

  • 1. The mold injection withstands the pressures of closure;
  • 2. Products will be removed in the plastic injection devices inject die before their melting and then control the speed and pressure injection mold to melt.

The current injection devices have two design: Screw pre-plasticizing or a two-stage device and reciprocating screw. Screw pre-plasticizing for the use of pre-plasticizing screw (first level) then injected into molten plastic-injection materials (second level).
Screw pre-plasticizing of molten advantage is the quality of constant, high pressure and high-speed, and precision of the injection volume control (using both ends of the piston stroke thrust mechanical device). These strengths are transparent, thin-walled products and high production rate required. Its weaknesses include the uneven length of stay (leading to material degradation), high cost of equipment and maintenance costs.

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