Products Description
The main function of the screw is to connect the two workpieces closely together through the thread to play a tightening effect. There are many kinds of screws, common self-tapping screws, ordinary screws, wood screws and so on. Self-tapping screws are suitable for non-metal or soft metal, without prior tapping, you can screw directly into the material; Ordinary screws are suitable for a variety of occasions that need to be tightened; Wood screws are specially used for joining wood.
In addition, screws are made of a variety of materials, including iron, steel, plastic, etc. The choice of these materials depends on the specific application scenario and needs. Screws have a long history, since the beginning of industrial production, screws have been one of the most basic fasteners, and their design and application continue to evolve to meet the needs of modern industry.
Screw-Type Plastic Injection Molding (Process)
Most injection molding machines use a reciprocating screw system, which:
Feeds plastic pellets into a heated barrel.
Melts and mixes the material using shear force and heat.
Injects the molten plastic into a mold cavity under pressure.
Cools and ejects the final part after solidification.
Injection Molding of Plastic Screws (Product)
Plastic screws are commonly used in electronics, medical devices, and lightweight applications. They are typically made from:
Nylon (PA) – Strong, lightweight, and wear-resistant.
Polycarbonate (PC) – High impact resistance and transparency.
Polypropylene (PP) – Chemical-resistant and low-cost.
PEEK – High-performance, heat-resistant material for industrial applications.
Advantages of Screw Injection Moulding
Better Mixing & Homogeneity – Ensures even plastic melting.
Consistent Quality – Reduces defects like bubbles or weak spots.
Higher Efficiency – Faster cycle times compared to older plunger-based systems.
Material Versatility – Can process various plastics and additives.
