In metallurgy, aviation, military industry, automobile and other fields, chromium parts have high hardness, wear resistance, high temperature resistance and other characteristics, so they are widely used. The 3D-printed chrome parts can be highly customized, with features such as curved surfaces, holes and slots, which are difficult to achieve compared to traditional manufacturing processes. For additive manufacturing technology, metal powder is a key raw material, especially requiring high sphericity, narrow particle size distribution, low oxygen content, and good fluidity.

However, since there are no relevant international standards, national standards or industry standards for metal chromium powder for additive manufacturing at home and abroad, there are no corresponding unified standard requirements and inspection and acceptance specifications, resulting in the powder-making process of each manufacturer is not completely consistent , The product parameters are not on the same benchmark, which brings inconvenience to the production and evaluation of the product, and hinders the development and industrialization process of metal chromium additive manufacturing technology.