PM has a unique chemical composition and mechanical, physical properties, and these properties are traditional casting methods can not be obtained. Using powder metallurgy technology can be made porous, semi-dense or fully dense material and products, such as oil bearing, gears, cams, guides, tools, etc., it is a no less cutting process.
(1) powder metallurgy technology can minimize the alloy component segregation, eliminating coarse, 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 catalyst, high-temperature superconducting materials, new metal materials (such as Al-Li alloys, heat-resistant Al alloys, super alloys, corrosion resistant stainless steel powder, powder high-speed steel, high-temperature structural materials intermetallic compounds, etc.) plays an important role.
(2) may be prepared in an 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 compound, give full play to the characteristics of each component material is a low-cost production of high-performance metal matrix and ceramic composites technology.
(4) can produce ordinary melting materials and products can not be produced with special structure and properties, such as the new porous biomaterials, porous separation materials, high-performance structural ceramic abrasive and functional ceramic materials.
(5) can achieve near-net shape forming and automated mass production, and thus, can effectively reduce the production of resources and energy consumption.
(6) can take advantage of the ore, tailings, steel sludge, steel mill scale, recycling scrap metal as raw material, is a material which can effectively carry out regeneration and utilization of new technologies.
The most common machining tools, hardware Abrasives, many that powder metallurgy techniques.