Characteristics of powder metallurgy

Powder metallurgy has unique chemical composition and mechanical and physical properties, which can not be obtained by traditional melting and casting. Using powder metallurgy technology can be directly made into porous, semi-dense or fully dense materials and products, such as oil-bearing, gear, CAM, guide rod, tool, etc., is a less cutting process.

(1) Powder metallurgy technology can minimize the segregation of alloy composition and eliminate the coarse and uneven casting structure. It plays an important role 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 metal materials (such as Al-Li alloy, heat resistant Al alloy, super alloy, powder corrosion resistant stainless steel, powder high speed steel, intermetallic compound high temperature structural materials, etc.).

(2) A series of high-performance non-equilibrium materials such as amorphous, microcrystalline, quasicrystalline, nanocrystalline and supersaturated solid solution can be prepared. These materials have excellent electrical, magnetic, optical and mechanical properties.

(3) Can easily realize a variety of types of composite, give full play to the characteristics of each component material, is a low-cost production of high performance metal base and ceramic composite materials technology.

(4) It can produce materials and products with special structure and properties that cannot be produced by ordinary smelting method, such as new porous biological materials, porous separation membrane materials, high-performance structural ceramic abrading tools and functional ceramic materials, etc.

(5) It can realize near-net formation and automated mass production, so as to effectively reduce the production of resources and energy consumption.

(6) Can make full use of ore, tailings, steel sludge, steel scale rolling, recycling waste metal as raw materials, is a kind of effective material recycling and comprehensive utilization of the new technology.

Our common machining tools, hardware abrasives, many are made of powder metallurgy technology.