With the continuous progress of science and technology, our technology has developed more and more excellent, and it can be applied in various fields; MIM metal injection molding is one of them.So what are the five major parts of metal injection molding ?

Rubber mixing: Metal powder and binder are kneaded at a certain ratio to form a uniform feed. The binder has the functions of enhancing the fluidity of the powder and maintaining the green shape.

Injection molding: the feed is injected into the mold through the injection gun at high temperature and high pressure, and the feed flows into the mold cavity through the nozzle (the number of mold cavities is designed according to the structural characteristics of the product to improve production efficiency.), Which is injected after compaction and cooling Green (Green Part). The blank has a certain strength and density. The cavity design should take into account the shrinkage ratio of the green body after sintering. The shrinkage ratio varies according to the material composition.

Degreasing: 98% of the binder in the green body will be removed after degreasing, leaving only 2% to maintain the green body. When degreasing is out of the oven, samples are taken for destructive testing. If the powder is relatively soft when the green body is shredded, it indicates that the degreasing is qualified. If there are hard pieces cut out, it means that the degreasing standard has not been reached. The degreased product is called Brown part / Degrease part.

Sintering: sintering for 24 hours. The remaining 2% binder was completely removed. After sintering, the product has high density and good mechanical and physical properties.

Post-processing: metal powder injection molding, mim injection molding.

The above information is the five major parts of MIM metal injection molding. You need to go through these processes to make this process, not just make it casually. You need to go through these steps to make perfect things. None of them lack.