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About The Application Of Iron Powder

wallpapers News 2021-01-11
Iron powder is an aggregate of iron particles with a size of less than 1mm. The color is black. It is the main raw material for powder metallurgy.
 
According to the particle size, it is customarily divided into five grades: coarse powder, medium powder, fine powder, fine powder and superfine powder. The iron powder composed of particles in the range of 150~500μm is coarse powder, the particle size is 44~150μm as medium powder, 10~44μm is fine powder, 0.5~10μm is very fine powder, and less than 0.5μm is superfine powder. Generally, the powder that can pass through the 325 mesh standard sieve, that is, the particle size is less than 44μm, is called sub-sieve powder. For higher-precision screening, you can only use air classification equipment, but for some easily oxidized iron powder, you can only use JZDF. Nitrogen protection classifier to do it.
 
Iron powder mainly includes reduced iron powder and atomized iron powder, which are named after different production methods.

 
Basic Information
 
Natural ore (iron ore) is crushed, pulverized, beneficiated and processed into mineral powder called concentrate. Concentrate powder is divided into a variety of concentrate powders according to different beneficiation methods, such as magnetic separation, flotation, and gravity separation. The chemical formula of ore raw materials for ironmaking in steel plants is still Fe.
 
Pure metallic iron is silvery white, and iron powder is black. This is an optical problem because the surface area of ​​iron powder is small and there is no fixed geometric shape. The crystal structure of iron block is geometrical, so the iron block absorbs part of visible light. The other part of the visible light is mirror-reflected and appears white; the light that the iron powder has not absorbed is diffusely reflected, and there is little visible light that can enter the human eye, so it is black.
 
Application
 
One of the most important metal powders in the powder metallurgy industry. Iron powder is the largest in powder metallurgy production, and its consumption accounts for about 85% of the total consumption of metal powder. The main market for iron powder is the manufacture of mechanical parts, and the amount of iron powder required accounts for about 80% of the total output of iron powder.

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