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研究了W18Cr4V高速钢在550℃下的低温固体渗碳工艺及低温渗碳＋深冷复合处理工艺。结果表明，与淬火回火态高速钢相比，经低温渗碳及复合工艺处理后硬度、红硬性得到改善，刀具的耐用度明显提高。
Low temperature solid carburizing process and low temperature carburizing + cryogenic composite process of W18Cr4V high speed steel at 550 ℃ were studied. The results show that compared with the quenched and tempered high-speed steel, the hardness and red hardness of the high-speed steel after the low-temperature carburizing and composite process are improved, and the durability of the tool is obviously improved.