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高速钢渗碳会使表面含碳量增加,故很少采用。若采用常规的淬火温度,可能发生熔化现象,即使避免熔化,表面含碳量大大超过基体成分,也会产生表面脆化。但目前,高速钢渗碳已被理性地运用于各个领域,以下简介无莱氏体高速钢渗碳、高速钢高温渗碳、高速钢低温低浓度渗碳技术及其应用。1.无莱氏体高速钢高速钢是莱氏体钢,用传统的铸锻工艺生产时,在凝固的最后阶段形成含有大量碳化物的莱
Carburizing high-speed steel will increase the surface carbon content, it is rarely used. Melting can occur if conventional quenching temperatures are used, and even if the melting is avoided, the surface carbon content significantly exceeds the matrix composition and surface embrittlement can occur. But at present, high speed steel carburizing has been rationally applied to all fields. The following introduction is without carburizing high-speed steel carburizing, high-speed high-speed steel carburizing, low-temperature high-speed steel carburizing technology and its application. 1. No ledeburite high-speed steel High-speed steel is ledeburite steel, with the traditional casting and forging process, the final stage of solidification in the formation of a large number of carbide Lai