The benefits of powder metallurgy

Production of ceramics and powder metallurgy method is somewhat similar, therefore, a series of powder metallurgy technology can also be used for the preparation of ceramic materials. As the advantages of powder metallurgy technology, it has become the key to solve the problem of new materials, new materials development plays an important role.(1) powder metallurgy technology can minimize the segregation of alloy components, eliminating bulky, uneven casting organization. In the preparation of high-performance rare earth permanent magnet materials, rare earth hydrogen storage materials, rare earth luminescent materials, rare earth catalysts, high temperature superconducting materials, new metallic materials (such as Al-Li alloy, heat-resistant Al alloys, super alloys, manganese powdercorrosion resistant stainless steel powder, powder high-speed steel, intermetallic compounds, high temperature structural materials, etc.) has an important role. (2) can be prepared amorphous, microcrystalline, quasicrystals, nanocrystalline supersaturated solid solution and a series of high performance non-equilibrium materials, these materials have excellent electrical, magnetic, optical and mechanical properties. (3) can easily achieve a variety of types of complex, give full play to the characteristics of each group element material is a low-cost production of high performance metal matrix and ceramic composite materials technology. Powder suitable for producing uniform shape and quantity of the product, especially high gear and other products of processing, manufacturing powder metallurgy method can greatly decrease the cost of production. (4) can be produced can not be produced by ordinary melting method has a special structure and properties of materials and products, such as the new porous biomaterials, porous membrane materials, high-performance structural ceramics and functional ceramic materials. Using powder metallurgy method, can be refractory metals and their compounds, fake alloy, porous approach to manufacturing. (5) can achieve near net shape forming and automated mass production, and thus, can effectively reduce the production of resources and energy consumption. Powder metallurgy method can be suppressed as the ultimate size of the compacts, without demand or less demand for subsequent machining, silicon powder it can greatly thrifty metal, the product of capital down. Manufacturing powder metallurgy products way, the metal consumption as long as 1-5%, and produced with ordinary casting method, the metal consumption may reach 80%. Powder metallurgy materials produced in the melting process is not really material, also not afraid to mix oxygen from the crucible and the agent to bring impurities, and sintered in vacuum and restore normal held in an atmosphere without fear of oxidation, material does not give any pollution, therefore, or production of high purity materials. (6) can take advantage of the ore, tailings, steel sludge, mill scale iron and steel, recycling scrap metal as raw material, a material can be recycled and effective utilization of new technologies.Powder has a unique chemical composition and mechanical, physical properties, and these properties with the traditional casting methods can not be obtained. The use made of porous powder metallurgy technology can, semi-compact or full-dense material and products, such as oil bearings, gears, cams, guides, tools, etc., is a small non-cutting process.