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What is powder metallurgy? what is it used for?
Powder metallurgy is a process technology for preparing metal or using metal powder (or a mixture of metal powder and non-metal powder) as raw materials, forming and sintering, to produce metal materials, composite materials and various types of products. Powder metallurgy has similarities with the production of ceramics. Therefore, a series of new powder metallurgy technologies can also be used for the preparation of ceramic materials. Due to the advantages of powder metallurgy technology, it has become the key to solving the problem of new materials and plays a pivotal role in the development of new materials. Powder metallurgy has unique chemical composition and mechanical and physical properties, and these properties cannot be obtained by traditional melting and casting methods. The use of powder metallurgy technology can directly produce porous, semi-dense or fully dense materials and products, such as oil-bearing bearings, gears, cams, guide rods, cutting tools, etc., which is a rare cutting process. (1) Powder metallurgy technology can better reduce the segregation of alloy components and eliminate coarse and uneven casting structure. 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 alloys, heat-resistant Al alloys, super alloys, powder corrosion-resistant stainless steel, powder High-speed steel, intermetallic compounds, high-temperature structural materials, etc.) play an important role. (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) It can easily achieve multiple types of composites, and give full play to the respective characteristics of each component material. It is a process technology for low-cost production of high-performance metal matrix and ceramic composite materials. (4) It can produce materials and products with special structures and properties that cannot be produced by ordinary smelting methods, such as new porous biological materials, porous separation membrane materials, high-performance structural ceramic abrasive tools and functional ceramic materials. (5) Near-net shape and automated mass production can be realized, thereby effectively reducing the resource and energy consumption of production.
(6) It can make full use of ore, tailings, steelmaking sludge, rolling steel scale, and recycling scrap metal as raw materials. It is a new technology that can effectively regenerate and comprehensively utilize materials.
Changshu Xunda Powder Metallurgy Co., Ltd. is an integrated supplier in the powder metallurgy industry. It has a complete domestic testing laboratory: including precision gear testing center, 3D testing, universal tool microscope, precision airflow testing, strength testing, metallographic analysis, internal flaw detection Testing, material fluidity analysis and various hardness testing functions are equipped with a full set of imported Ipsen furnace heat treatment equipment.