The binder for injection molding consists of waxes and other polymers, and a variety of process aids are added.

Traditional production method of cemented carbide (pressing - sintering method) can only produce the products with simple shape, which limits the application range of cemented carbide. The appearance of powder injection molding technology brings an opportunity to further expand the application field of cemented carbide materials (such as the example of the following product).

In the injection molding process, comprehensive adoption of solvent degreasing and thermal debinding process can greatly shorten the degreasing time and improve the production efficiency. Degreasing defects (deformation, cracks, etc.) often occurs during degreasing process of injection molding, affecting the quality of degreasing. 

Because of the advantages of reaction mechanism, the rate of metal catalytic debinding is much larger than that of traditional degreasing technology.

Degreasing principle of injection molding of catalytic debinding is to use a catalyst to organic carrier depolymerization of volatile small molecules, these molecules have a higher vapor pressure than other organic carrier molecules during debinding process, can quickly spread out the body. The binder system used in the process of injection molding cemented carbide catalytic debinding is generally composed of polyacetal resin, polymer with auxiliary framework and stabilizing additives.