| NiCr-Cr3C2-Ti-C金属陶瓷堆焊层用于磨煤机磨辊修复的研究 |
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| 引用本文： | 马一民,缪谦,刘开.NiCr-Cr3C2-Ti-C金属陶瓷堆焊层用于磨煤机磨辊修复的研究[J].电力建设,2011,32(9):62-66. |
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| 作者姓名： | 马一民 缪谦 刘开 |
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| 作者单位： | 中国电力科学研究院,北京市,100192 |
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| 摘 要： | 介绍了以NiCr箔、Cr3 C2粉、Ti粉、C粉等为原料,利用氩弧熔覆的方法制备的NiCr-Cr3 C2-Ti-C复合堆焊层的性能特点；采用扫描电子显微镜、能谱仪、X射线衍射仪及显微硬度计等仪器,研究了熔覆层的相组成、组织结构、成分分布和涂层断面显微硬度分布.结果表明:熔覆层组织由Ni基固溶体、TiC和Cr23 C6等...
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| 关 键 词： | 磨辊 堆焊 NiCr-Cr3 C2 -Ti-C复合堆焊层 耐磨性 |
Research on Improving Abrasion-resistance Capability of Grinding Roller by NiCr-Cr3C2-Ti-C Compound Welding Surface |
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| MA Yimin,MIAO Qian,LIU Kai.Research on Improving Abrasion-resistance Capability of Grinding Roller by NiCr-Cr3C2-Ti-C Compound Welding Surface[J].Electric Power Construction,2011,32(9):62-66. |
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| Authors: | MA Yimin MIAO Qian LIU Kai |
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| Affiliation: | (China Electric Power Research Institute,Beijing 100192,China) |
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| Abstract: | To improve the capability of abrasion-resistance of the grinding roller,the NiCr-Cr3C2-Ti-C compound welding surface is prepared and taken NiCr foil,Cr3C2 powder Ti powder and C powder as raw materials based on TIG method.The phase structure,microscopic organization,component distribution and the hardness are studied by SEM,EDS and XRD.It is shown that the welding tissue is composed by Ni-based sosolid,TiC and Cr23C6 etc,and its highest hardness is between 1800 and 2000 HV.By wearing test,the abrasion of NiCr-Cr3C2-Ti-C compound welding surface and the other materials are compared.It is shown that the NiCr-Cr3C2-Ti-C compound welding surface has better abrasion-resistance than the other materials,and can be used to improve the capability of abrasion-resistance of the grinding roller. |
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| Keywords: | grinding roller welding NiCr-Cr3C2-Ti-C compound welding surface abrasion resistance |
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