What are the two basic methods used in metal powder injection molding?

In the process of metal powder injection molding, why should we use fine powder as the raw material? Usually, which are the two basic methods of zcmim powder metallurgy factory below for you to answer:

1) small particles, large surface area, the higher the surface, can improve the power of sintering of powder;

2) grain refinement, the increase of the coupling force between the particles, improve the strength of the body after the skim;

3) fine particle resistance, melt and binder in the flow is not easy to separate, easy to mix and injection.

Thermal and solvent are usually used. The solvent debinding in injection molding to form an open pore network and subsequent thermal debinding of decomposition product discharge with mass transfer channel for the decomposition products may form the inner pressure and the chances of debinding defects caused by, degreasing speed.