采用LD钢制造大型滚子冷镦模具的模芯，具有较理想的硬度、强度、耐磨性和冲击韧性。
Core of large roller cold upsetting die made of ld steel has more ideal hardness, strength, anti wear capacity and impact toughness.
本文介绍采用高碳中铬合金钢作为磨机衬板材料，按照正交设计法优选热处理工艺参数，得到材料韧性和硬度的理想配合。
The mill Liners of high-carbon medium-chromium alloy steel have ideal coordination of toughness and hardness after optimum heat treatment determined by cross-design.
采用该工艺，可得到均匀的齿面硬度和较为理想的齿面硬化层分布状态。
The results show that, by the scanning method, we may obtain well-distributed hardness and approximately ideal distribution of hardened layer on gear surface.
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