压铸模用4Cr5MoSiV1钢热处理强化工艺研究
Study on Heat Treatment Strengthening Process for 4Cr5MoSiV1 Steel Using in Die-casting Mould
唐田秋1, 莫晓斌2, 张 蓉1
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作者单位：(1. 湖南工学院 机械工程系, 湖南 衡阳 421002; 2. 衡阳金淬热处理有限公司, 湖南 衡阳 421002)
中文关键字：压铸模； 4Cr5MoSiV1； 强化处理
英文关键字：die-casting mould; 4Cr5MoSiV1; strengthening heat treatment
中文摘要：采用“锻热调质预处理+ 去应力退火+真空高压气体淬火+三次高温回火+ RE-N-C-B-O-S多元共渗”复合强化工艺，对4Cr5MoSiV1钢进行热处理强化工艺研究。对比实验结果表明，复合热处理强化后的力学性能明显改善，模具寿命提高了4～5倍，取得了比较好的效果。
英文摘要：The heat treatment strengthening process for 4Cr5MoSiV1 steel was studied through the compound strengthening heat treatment technology of the “pretreatment of hot-forging & quenching and tempering treatment + stress relief annealing + vacuum heat treatment at high pressure gas quenching +three times high-temperature tempering +RE-N-C-B-O-S multicomponent permeation”, Comparative test results show that the mechanical properties significantly improve after strengthening heat treatment. The die life increases by 4 ~ 5 times, and achieves the better results.