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(2) Classification: powder metallurgy porous materials, powder metallurgy friction reducing materials, powder metallurgy friction materials, powder metallurgy structural parts, powder metallurgy mold materials, and powder metallurgy electromagnetic materials and powder metallurgy high temperature materials. It includes: the geometric properties of the powder (particle size, specific surface, pore size and shape); the chemical properties of the powder (chemical composition, purity, oxygen content and acid insolubles, etc.); the mechanical properties of the powder (loose density, fluidity) , formability, compressibility, packing angle and shear angle, etc.); physical properties and surface properties of the powder (true density, gloss, absorbing, surface activity, ze%26mdash; ta (%26ccedil;) potential and magnetic properties, etc.) ).
5. General term for all properties of powder metallurgy sub-process and performance powder. Powder properties often determine the performance of powder metallurgy products to a large extent.
Application and classification of powder metallurgy materials
(1) Applications: (automobiles, motorcycles, textile machinery, industrial sewing machines, power tools, hardware tools, electrical appliances, engineering machinery) and other powder metallurgy (iron-copper-based) parts.