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Solutions for precise grading of iron powder

An aggregate of iron particles with a size less than 1mm. Color: black. It is the main raw material for powder metallurgy. According to the particle size, it is usually divided int

An aggregate of iron particles with a size less than 1mm. Color: black. It is the main raw material for powder metallurgy. According to the particle size, it is usually divided into five grades: coarse powder, medium powder, fine powder, microfine powder and ultrafine powder. Iron powder composed of particles with a particle size of 150-500μm is coarse powder, 44-150μm is medium powder, 10-44μm is fine powder, 0.5-10μm is ultrafine powder, and less than 0.5μm is ultrafine powder. Generally, powder that can pass through a 325-mesh standard sieve, that is, a particle size less than 44μm, is called sub-sieve powder. If a higher precision screening is required, only airflow classification equipment can be used, but for some easily oxidized iron powders, only JZDF nitrogen protection classifier can be used. Iron powder mainly includes reduced iron powder, atomized iron powder, and foundry pig iron powder; they are named because of different production methods.


The application of iron powder

An important metal powder in the powder metallurgy industry. Iron powder is used in large quantities in powder metallurgy production, accounting for about 85% of the total metal powder consumption. 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 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 the classification of iron powder that is easily oxidized and explosive, only a nitrogen-protected classifier + an airtight ultrasonic vibrating screen can be used for high-precision classification.