The main types of injection molding include the following:
Dual-color and multi-color injection molding: This is a mature process, also known as double-material injection molding. It uses two materials to mold a product, which can achieve different color and touch appearance effects, improve design freedom and production efficiency, and reduce costs.
Secondary injection molding (overmolding process): This process is to inject a plastic product that has been injected once again. The material injected for the first time is called the substrate, and the material injected later is called the covering material. Secondary injection molding can increase the feel and drop resistance of the product, and is widely used in the medical industry and other occasions that require a soft surface.
Insert molding: In this process, metal or other materials are embedded in plastic to achieve specific functions or appearance effects. This technology is often used in automobiles and electronic equipment.
Nano injection molding: This technology injects nanomaterials into plastics to improve the properties of the material, such as strength, heat resistance, etc. Nano injection molding is widely used in high-tech products and fields that require high-performance materials.
Foaming injection molding: This process adds a foaming agent to the plastic to expand it during the injection molding process to form a porous structure. It is often used in sound insulation and heat insulation products.
Spray-free injection molding: This technology can achieve color and surface effects directly during the injection molding process without subsequent spraying treatment, reducing environmental pollution and production costs.
Injection compression molding: This process injects molten plastic into the mold under high pressure and then compresses it for molding. It is suitable for products that require high density and strength.
