Metal powder injection molding (MIM) is a new near-net-shape technology of powder metallurgy, which introduces modern plastic injection molding technology into the field of powder metallurgy. The basic technological process is as follows: firstly, the solid powder and the organic binder are evenly mixed and kneaded, after granulation, they are injected into the mold cavity in a heating plasticizing state (~ 150℃) for curing and molding, then the binder in the molded blank is removed by chemical or thermal decomposition, and finally the final product is obtained by sintering and densification. Compared with the traditional process, it has the characteristics of high precision, uniform structure, excellent performance and low production cost. Its products are widely used in electronic information engineering, biomedical equipment, office equipment, automobiles, machinery, hardware, sports equipment, watch industry, weapons and aerospace industries. Therefore, it is generally believed that the development of this technology will lead to a revolution in part forming technology, which is known as "the hottest part forming technology today" and "the forming technology of 2 1 century".
Shenzhen Xingyuda Company and Beijing Jiarun Company all do this, and that's all I know.
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