滚丝模热处理工艺的研究
Study on Heat Treatment Process of Rolling Die
汪新衡, 唐明华
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作者单位:湖南工学院 机械系, 湖南 衡阳 421002
中文关键字:Cr12MoV钢; 亚温加热; 等温淬火; 滚丝模; 性能
英文关键字:Cr12MoV steel; subnormal temperature heating; austempering; rolling die; performance
中文摘要:针对Cr12MoV钢滚丝轮模具在服役过程中的早期失效问题,进行了改进的亚温加热、等温淬火工艺试验。结果表明,工艺改进后得到的B下/M复相组织使模具获得了良好的强韧性匹配,滚丝模使用寿命提高了22倍,基本杜绝了早期失效现象。
英文摘要:Aimed at the problems of Cr12MoV steel rolling die early failure, the technology test of improving sub-temperature heating, isothermal quenching was carried out. The results show that B under / M compound microstructure makes the die obtain a good match of strength and toughness. The worklife of rolling die increases by 22 times. The phenomenon of early failure disappears.