| 45Cr4NiMoV轧辊堆焊焊条堆焊工艺及性能研究 |
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| 引用本文： | 汪选国,武永宇.45Cr4NiMoV轧辊堆焊焊条堆焊工艺及性能研究[J].武汉理工大学学报(交通科学与工程版),2006,30(2):272-274. |
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| 作者姓名： | 汪选国 武永宇 |
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| 作者单位： | 武汉理工大学材料科学与工程学院,武汉,430063 |
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| 摘 要： | 研究了一种用于45Cr4NiMoV钢轧辊修复的耐磨堆焊焊条．工艺试验表明，采用打底焊过渡层的方法可有效防止堆焊时出现裂纹．金相显微分析表明，研制的轧辊堆焊焊条的堆焊合金组织是马氏体基体和少量碳化物．性能测试结果表明，堆焊层的平均硬度在HRC52左右，满足45Cr4NiMoV轧辊材料的硬度要求，耐磨性远远大于45Cr4NiMoV轧辊材料。是其耐磨性的127．5倍，可用于轧辊的修复堆焊．
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| 关 键 词： | 轧辊 堆焊 焊条 堆焊工艺 耐磨性 |
| 收稿时间： | 2005-11-12 |
| 修稿时间： | 2005年11月12 |
Study on Surfacing Technics and Property of 45Cr4NiMoV Roller Surfacing Welding Rod |
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| Wang Xuanguo,Wu Yongyu.Study on Surfacing Technics and Property of 45Cr4NiMoV Roller Surfacing Welding Rod[J].journal of wuhan university of technology(transportation science&engineering),2006,30(2):272-274. |
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| Authors: | Wang Xuanguo Wu Yongyu |
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| Institution: | School of Material Science and Engineering , WUT , Wuhan 430063 |
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| Abstract: | A wear-resistance surfacing rod applied for 45Cr4NiMoV roller repair is developed. Processing tests show that the method of rendering welding transition layer can efficiently prevent from arising of cracks. Microstructure analysis indicates that microstructure of surfacing metal is martensite matrix with a few carbides. The results of property testing show that average hardness of surfacing layer is about 52 HRC and fulfils hardness requirement of 45Cr4NiMoV roller material, wear-resistance ability is 127. 5 times of 45Cr4NiMoV roller material, which demonstrate that it can be used to roller repair surfacing. |
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| Keywords: | roller surfacing welding rod surfacing teehnies wearability |
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