Cobalt-containing alloy steel powder injection molding feed and cobalt-containing alloy steel processing method

The embodiment of the invention discloses a cobalt-containing alloy steel powder injection molding feed and a cobalt-containing alloy steel processing method.The feed comprises 88.8% of alloy steel powder, 10% of polyformaldehyde resin, 1% of a lubricant and 0.2% of an antioxidant, and the alloy steel powder comprises 7.5% of Cr, 0.75% of Nb, 0.075% of C, 18% of Co, 7% of Ni and the balance Fe. According to the method, the components of the original powder are changed, so that the uniform high-strength powder and feed are processed; a high-strength alloy product is finally obtained through injection molding, degreasing and sintering of the fed material, and the alloy product is an alloy workpiece with the highest strength obtained through a metal powder injection molding technology at present and can completely meet the use requirements of folding hinges. 本申请实施例公开了一种含钴合金钢粉末注射成型喂料及含钴合金钢加工方法，所述喂料包括：合金钢粉末88.8％，聚甲醛树脂10％，润滑剂1％，抗氧化剂0.2％，其中，所述合金钢粉末包括Cr 7.5％，Nb 0.75％，C 0.075％，Co 18％，Ni 7％和Fe余量。本申请通过对原粉末组分的改变从而加工出均匀高强