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Powder metallurgy is the preparation of metal powder and through forming and sintering the metal powder or processing method and non metal powder made from a mixture of products, not only can the special material preparation for ordinary smelting method is difficult to produce, and can manufacture all kinds of precision mechanical parts, labor and material saving. But the mold and metal powders, high cost, small batch size is too big or products should be used. Compared with traditional process of powder metallurgy materials and materials technology, has the following characteristics:
Powder metallurgy is the preparation of metal powder and through forming and sintering the metal powder or processing method and non metal powder made from a mixture of products, not only can the special material preparation for ordinary smelting method is difficult to produce, and can manufacture all kinds of precision mechanical parts, province, province feed industry. But the mold and metal powders, high cost, small batch size is too big or products should be used. Compared with traditional process of powder metallurgy materials and materials technology, has the following characteristics:
1 powder metallurgy process is carried out in the lower than the base metal melting point, thus can obtain the melting point, density difference between the various metal and metal and ceramic, metal and plastic multiphase inhomogeneous special functional composite materials and products.
2 to improve the material performance. A small metal or alloy powder with special methods for the solidification speed, uniform fine grain, ensure the material microstructure is uniform and stable performance, and good cold and hot processing performance, and the powder particles is not affected by the alloy elements and content restrictions, can improve the strengthening phase content, thus the development of new materials systems.