Pharmaceutical iron powder

Iron powder for medicine is the main raw material for powder metallurgy. According to the granularity, it is customarily divided into five grades: coarse powder, medium powder, fine powder, fine powder and ultrafine powder. The iron powder composed of particles in the range of 150-500 μm in size is coarse powder, the medium size is 44-150 μm, the fine powder is 10-44 μm, the extremely fine powder is 0.5-10 μm, and the ultrafine is less than 0.5 μm. powder. Generally, the 325-mesh standard sieve, ie, the powder with a particle size of less than 44 μm, is called a sub-sieve powder. For higher-accuracy screening, air-flow classification equipment can only be used, but for some easily oxidized iron powder, only JZDF can be used. Nitrogen protection grading machine to do. Iron powder mainly includes reduced iron powder and atomized iron powder, which are named after different production methods.