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Comparison of powder metallurgy injection molding and modern plastic injection molding

Sintered Powder Metal Gears is a new type of molding technology, which is the progress of the industry and the progress of the national level. Metal powder injection molding is actually a new type of powder metallurgy near-net forming technology formed by introducing modern plastic injection molding technology into the field of powder metallurgy.

The basic process of powder metallurgy injection molding is: first, the solid powder is uniformly mixed with the organic binder, and after granulation, it is injected into the mold cavity with an injection molding machine under heating and plasticization (~150℃) to form, and then The binder in the formed blank is removed by chemical or thermal decomposition, and finally sintered and densified to obtain the final product.

Metal powder injection molding technology is a product of multi-discipline integration and integration of plastic molding technology, polymer chemistry, powder metallurgy technology and metal materials science. The mold can be used to spray mold blanks and quickly produce high-density and high-precision through sintering. , Three-dimensional complex-shaped structural parts can quickly and accurately materialize design ideas into products with certain structural and functional characteristics, and can directly produce parts in batches, which is a new revolution in the manufacturing technology industry. Powder metallurgy injection molding

So far, more than 100 companies around the world are engaged in product development, research and sales of this technology. MIM technology has therefore become the most active frontier technology field in the new manufacturing industry. It is represented by the pioneering technology of the world's metallurgical industry. MIM technology is the main direction of powder metallurgy technology development.