Characteristics of Powder Metallurgy

Powder metallurgy has unique chemical composition and mechanical and physical properties that cannot be obtained by traditional casting methods. The use of powder metallurgy technology can directly produce porous, semi dense or fully dense materials and products, such as oil containing bearings, gears, camshafts, guide rods, cutting tools, etc., which is a minimal cutting process.

(1) Powder metallurgy technology can greatly reduce the segregation of alloy components and eliminate coarse and uneven casting structures. 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, and new metal materials (such as Al Li alloys, heat-resistant Al alloys, superalloys, 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 can be prepared, including amorphous, microcrystalline, quasicrystalline, nanocrystalline, and supersaturated solid solutions, which have excellent electrical, magnetic, optical, and mechanical properties.

(3) It is a low-cost process technology for producing high-performance metal based and ceramic composite materials that can easily achieve various types of composites and fully utilize the characteristics of each component material.

(4) It can produce materials and products with special structures and properties that cannot be produced by ordinary melting methods, such as new porous biomaterials, porous separation membrane materials, high-performance structural ceramic grinding tools, and functional ceramic materials.

(5) It can achieve near net formation and automated mass production, thereby effectively reducing resource and energy consumption in production.

(6) It is a new technology that can effectively carry out material regeneration and comprehensive utilization by fully utilizing ores, tailings, steelmaking sludge, steel rolling scales, and recycled scrap metals as raw materials.

Many of the commonly used machining tools and hardware grinding tools are manufactured using powder metallurgy technology. Powder metallurgy mold