MIM technology will be the main development direction of powder metallurgy technology in the future

Metal powder injection molding technology (MetalPowderInjectionMolding, or MIM) is introducing modern plastic injection forming technology of powder metallurgy and form a new type of powder metallurgy net-shape forming technology.

The basic process is：1、 Solid powder and organic binder practice, evenly mixed after granulating in heating plasticizing state (~ 150 ℃) with injection forming   machine injection mold cavity crystallized8)；

                                    2、The binders are then removed by chemical or thermal decomposition；

                                    3、The final product is obtained through sintering and densification.

Compared with traditional technology, MIM technology is characterized by high precision, uniform organization, excellent performance and low production cost. Its products are widely used in electronic information engineering, biological medical equipment, office equipment, automobile, machinery, hardware, sports equipment, watch industry, weapon and aerospace industry. Therefore, it is generally believed that the development of this technology will lead to a revolution of parts forming and processing technology, which is praised as "the hottest part forming technology today" and "the forming technology of the 21st century".

It was invented by Parmatech of California in 1973, and was developed and popularized in many European countries and Japan in the early 1980s. In particular, since the mid-1980s, this technology has achieved rapid development since its industrialization, which has been increasing at an alarming rate every year. So far, more than 100 companies in more than 10 countries and regions, including the United States, Western Europe and Japan, have been engaged in the product development, development and sales of this technology. Japan is very competitive and outstanding, many large companies are involved in the promotion of MIM industry, including Pacific metal, mitsubishi steel, kawasaki iron, kobe steel, sumitomo mine, seiko - epson, datong special steel. At present, Japan has more than 40 companies specialized in MIM industry, whose total sales volume of MIM industrial products has already surpassed that of Europe and kept up with that of the United States. Up to now, more than 100 companies in the world have been engaged in the product development, development and sales of this technology. As a result, MIM technology has become the most active frontier technology field in the new manufacturing industry. It has been pioneered by the world metallurgy industry and represents the main direction of the development of powder metallurgy technology.