Powder metallurgy is preparing metal or metal powder (or the mixture of metal powder and nonmetal powder) as raw material, after forming and sintering, manufacturing metal materials, composite and technology of all kinds of products.

From the current application of powder metallurgy technology, it has the following several major advantages:

(1) of powder metallurgy technology can minimize alloy composition partial poly, eliminate thick, uneven casting structure. In the preparation of high performance rare-earth permanent magnetic materials, rare earth hydrogen storage materials, rare earth luminescent material, rare earth catalyst, high temperature superconducting materials, new type metal materials (such as Al - Li alloy, heat-resistant Al alloy, super alloy, corrosion resistant stainless steel powder, powder high speed steel, intermetallic compound, high temperature structural materials, etc.) plays an important role.

(2) preparation of amorphous and microcrystalline, quasi crystal, nanocrystalline and super saturation solid solution and a series of high-performance nonequilibrium materials, these materials have excellent electrical, magnetic, optical, and mechanical properties.

(3) you can easily achieve a variety of types of composite, give full play to the respective features of every material, is a kind of low-cost production of high-performance metal and ceramic composite material technology.

(4) can produce ordinary smelting method cannot production with special structure and properties of materials and products, such as new porous biological material, porous membrane material, high performance structure ceramics and functional ceramics, etc.

(5) can realize near net forming and automatic batch production, thus, can effectively reduce the production of resources and energy consumption.

(6) can make full use of ore, tailings, steelmaking sludge, rolled steel and iron scale as raw materials, recycling scrap metal, is a kind of material is effective for regeneration and comprehensive utilization of new technology.