快速淬火硬化的钢是硬而易碎的，不适合大多数场合使用。
Steel that has been hardened by rapid quenching is brittle and not suitable for most uses.
特殊的材料包括球墨铸铁和钢煅品，大部分机轴经过热处理，表面硬化、渗氮和感应淬火。
Typical materials include ductile iron castings or steel forgings. Most crankshafts require some form of heat treating including case hardening, nitriding and induction harden.
热处理、碳化、淬火硬化层，表面覆层，钢，有色金属，微小及薄形零件等。
Heat treated layer, carbonized layer, hardened hard layers, superficial coating, steels, non-ferrous metal, micro and thin shaped components.
国产新型塑料模具钢主要有预硬钢、时效硬化钢、淬火——回火钢、冷挤压成型模具钢、耐蚀钢等类型。
The new domestic - developed plastic mould steels include prehardening steel . age hardening steel, quenching-tempering steel, cold -forming steel, and anti - corrosion steel, etc.
焊补冲压模锻造模工具钢等淬火硬化后模具材料的修补。
Progressive metal stamping mould forging weld-repair after quench hardened steel mold materials etc.
摘要：对980钢进行激光相变硬化研究，分别对其空冷和水冷时淬火硬化层的宽度和深度进行测量，对其组织和硬化层硬度进行分析。
Abstract: The research of laser transformation hardening on steel 980 has been done in this paper. The width, depth and microhardness of quench zone was measured.
淬火硬化模具钢刃口的修补，适用于SKD11合金工具钢，淬火后的模具钢修补。
Quench hardened steel blade of repair, applicable to SKD11 alloy steel, alloy after quenching repair.
淬火硬化模具钢刃口的修补，适用于SKD11合金工具钢，淬火后的模具钢修补。
Quench hardened steel blade of repair, applicable to SKD11 alloy steel, alloy after quenching repair.
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