Heat treatment method of steel shallow carburizing

The invention relates to the field of heat treatment, in particular to a heat treatment method of steel shallow carburizing. The method comprises the steps that a non-carburizing area of a part is subjected to copper plating protection, the part comprises the non-carburizing area and a carburizing area, a carburizing surface of the carburizing area is cleaned, in a controlled atmosphere furnace, the carburizing surface is subjected to first-time carburizing, in a second segment of first-time carburizing, the carbon potential range is 0.75+/-0.05%C, first-time carburizing comprises two segments, and after carburizing, the part is subjected to quenching, high-temperature tempering and copper removal. The problems that in conventional process parameters, a part carburizing layer depth is prone to being overproof, and part deforming is serious can be solved. 本发明涉及热处理领域，尤其是一种钢浅层渗碳的热处理方法。该方法包括：对零件的非渗碳区域镀铜防护；零件包括非渗碳区域和渗碳区域；清理渗碳区域的渗碳表面；在可控气氛炉内，对渗碳表面进行首次渗碳；其中，首次渗碳的第二段中，其碳势范围为0.75±0.05％C；首次渗碳包括两段；零件渗碳后淬火、高温回火、去铜。本发明解决了