In this article, we will learn how to make iron powder. Powder manufacturing methods are usually divided into two categories, namely physical-chemical method and mechanical crushing method. Reduction method, atomization method and electrolysis method are widely used in industry. The preparation method and general characteristics of iron powder are also discussed.
Iron ore reduction method, general characteristics: irregular powder particles, low bulk density, high impurity content, slightly poor compressibility. Main uses: structural parts, welding rod, metal cutting. cheapness.
Iron scale reduction method, general characteristics: irregular powder particles, medium bulk density, high purity, good compressibility, high compactness, good sinterability. Main uses: structural parts, welding rod, metal cutting. cheapness.
Atomization method, general characteristics: powder particles close to spherical, high bulk density, good fluidity, high compact strength. Main uses: high density structural parts, powder forging parts, filters, welding rods. The price is more expensive.
Electrolysis method, general characteristics: the powder particles are dendritic or flaky. It has the advantages of high density, high purity and good compression. Main application: high density structural parts.
Carbonyl method, general characteristics: spherical powder particles, very fine, high purity. Main uses: electronic materials. It's expensive.
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