Abstract：Mass production of high grade stainless steel powder for MIM (metal injection molding) was produced by combined atomization technology of water and gas. The design of nozzle, optimization of refractories, control of powder oxygen content and research on powder treatment technology were discussed in the present work. In comparison with the common stainless steel powder 316L and 17-4PH, the properties of produced powder have reached the advanced level of international similar products. Industrial scale production of 500 Kg is realized, and the production capacity of special alloy powder can reach 10 thousand tons per year.
2020, Vol. 30 
