The development history of powder metallurgy has been for a long time. With the development of powder metallurgy technology, metal powder as a raw material has been expanded to refractory metal compound powder, ceramic powder and coating powder. The finished product sintered by powder metallurgy can be used without further processing, and various sintered products can be post-treated as required. The powder metallurgy of modern technology has three important signs in the development.
Overcoming the difficulties in the process of refractory metal smelting, powder metallurgy technology has been applied in domestic industry, and the processing of cemented carbide is known as the industrial revolution in cutting. At this stage, the powder metallurgy method has been used to make porous oil-containing bearings and has been developed to produce iron-based mechanical parts. The powder metallurgy mechanical parts used in industry are oil pump gears. New materials with higher performance and new process development have epoch-making new materials come out one after another, making powder metallurgy play an increasingly important role as an advanced technology of modern metallurgy.
For material processing, powder metallurgy is a new non-cutting process for manufacturing mechanical parts, which can greatly reduce the amount of cutting and save machine tools and save metal materials. The role of powder metallurgy in the national economy and in the field of science and technology is becoming more and more important.
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