PURPOSE: To produce a carbide dispersed carburizing product combining stable wear resistance, toughness and machinability by subjecting a steel having a specified compsn. constituted of C, Si, Mn, Cr and Fe to carbide dispersing carburizing and forming a specified carburizing layer. ;CONSTITUTION: A steel having a compsn. contg., by weight, 0.05 to 0.18% C, ≤1.5% Si, ≤1% Mn and 5 to 15% Cr, furthermore contg., at need, prescribed amounts of Ni, Mo, V, Cu, Nb and Co, and the balance Fe with inevitable impurities is subjected to carbide dispersing carburizing, and, on the obtd. carburizing layer, alloy carbides essentially consisting of M7C3 are formed. At this time, as for the carburizing layer, in the range of 0.1mm depth, the average grain size (d) of the carbides contg. ≥1.0% C and having ≥700Hv hardness and ≥0.5μm diameter is regulated to ≥0.1μm. Moreover, (α) obtd. by the formula (α=3.6-0.070d-0.14C-0.0034Hv) is regulated to ≤0. 65. Besides, the hardness of the noncarburized part is regulated to 270 to 350Hv.;COPYRIGHT: (C)1995,JPO
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机译：目的：通过对具有指定成分的钢进行处理，生产出具有稳定的耐磨性，韧性和切削性的碳化物分散渗碳产品。由C，Si，Mn，Cr和Fe组成的碳化物分散渗碳并形成特定的渗碳层。 ;组成：具有复合物的钢。以重量计，包括0.05至0.18％的C，≤1.5％的Si，≤1％的Mn和5至15％的Cr，并且根据需要还包含规定量的Ni，Mo，V，Cu，Nb和Co，并且将具有不可避免的杂质的余量Fe进行碳化物分散渗碳处理，然后进行渗碳处理。在渗碳层中，形成了基本上由M 7 C 3 组成的合金碳化物。此时，对于渗碳层，在0.1mm深度的范围内，碳化物的平均粒径（d）连续。硬度≥700％，硬度≥700Hv，直径≥0.5μm的C≥0.1μm。此外，（α）obtd。由式（α＝ 3.6-0.070d-0.14C-0.0034Hv）调节为≤0。 65.此外，非渗碳零件的硬度被调节为270至350Hv 。;版权所有：（C）1995，日本特许厅
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