A collection of iron particles with a size less than 1mm. Color: Black. It is the main raw material for powder metallurgy. According to particle size, it is commonly divided into five grades: coarse powder, medium powder, fine powder, fine powder, and ultrafine powder. Iron powder composed of particles with a particle size range of 150-500 μ m is coarse powder, particles with a particle size range of 44-150 μ m are medium powder, particles with a particle size range of 10-44 μ m are fine powder, particles with a particle size range of 0.5-10 μ m are extremely fine powder, and particles with a particle size smaller than 0.5 μ m are ultrafine powder. Generally, powders that can pass the 325 target sieve and have a particle size less than 44 μ m are called sub sieve powders. To achieve higher precision sieving, only air flow classification equipment can be used. However, for some easily oxidizable iron powders, only JZDF nitrogen protected classifiers can be used. Iron powder mainly includes reduced iron powder, atomized iron powder, and cast iron powder; They are named after different production methods.

Application of iron powder

An important metal powder in the powder metallurgy industry. Iron powder is widely used in powder metallurgy production, accounting for about 85% of the total consumption of metal powder. The main market for iron powder is the manufacturing of mechanical parts, which requires approximately 80% of the total iron powder production.

Classification of iron powder

Generally, a rotary vibrating screen can be used for coarse screening, but an ultrasonic vibrating screen is required for high-precision classification. For iron powder that is prone to oxidation and explosion, only a nitrogen protected classifier and an airtight ultrasonic vibrating screen can be used for high-precision classification.