Is injection molding only for plastic

In addition to plastics, injection molding can also be used for Non-plastic materials

Although injection molding is most commonly used in the plastics industry, it is also applicable to other materials such as metals and rubber.

In Metal Injection Molding (MIM), such as low melting point alloys: such as zinc alloys, magnesium alloys, etc. Metal powder is mixed with a binder and injected into the mold, and then the binder is removed and the metal powder is densified through subsequent processes such as sintering to obtain metal parts. This technology combines the advantages of injection molding and powder metallurgy, and can produce metal parts with complex shapes and high precision.

Certain types of rubber: especially liquid silicone rubber (LSR), which can be subjected to liquid silicone rubber injection molding (LSR-IM) to produce high-precision, soft rubber products such as medical devices, seals, etc.

Injection molding is the most widely used plastic processing industry. Common plastic materials include:

Acrylic (PMMA): A strong, transparent thermoplastic with high tensile strength, light resistance and shatter resistance.

Acrylonitrile Butadiene Styrene (ABS): An engineering-grade thermoplastic with strength, impact resistance and gloss.

Nylon/Polyamide (PA): Available in a variety of grades, used to make mechanical parts, housings and snap closures, etc., with high wear resistance, noise reduction and fatigue resistance.

Polycarbonate (PC): A strong, transparent plastic with high durability, chemical resistance and predictable mold shrinkage.

Polyethylene (PE): A common plastic that can be divided into high-density polyethylene (HDPE), low-density polyethylene (LDPE) and polyethylene terephthalate (PET) according to density, with chemical resistance and low cost.

Polyoxymethylene (POM): An engineering plastic suitable for parts that require low friction, high stiffness and dimensional stability.

Polypropylene (PP): A hard and heat-resistant plastic with good chemical resistance and recyclability.

Polystyrene (PS): There are two types, general purpose and high impact, used in medical, optical and electrical applications.

In addition, plastic materials such as polybutylene terephthalate (PBT), polyphenylsulfone (PPSU), polyetheretherketone (PEEK), polyetherimide (PEI) are also suitable for injection molding.