| HVOF超音速喷涂WC-10Co-4Cr在高压闸阀中的应用 |
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| 引用本文： | 朱成才,王梦雨,侯玉柏,任先京. HVOF超音速喷涂WC-10Co-4Cr在高压闸阀中的应用[J]. 热喷涂技术, 2013, 5(1): 11-15 |
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| 作者姓名： | 朱成才 王梦雨 侯玉柏 任先京 |
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| 作者单位： | 北京矿冶研究总院,北京100160;北京市工业部件表面强化与修复工程技术研究中心,北京102206 |
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| 摘 要： | 本文采用HVOF超音速喷涂工艺、WC-10Co-4Cr粉末,对高压闸阀阀板的工作面进行表面强化。实验结果表明,涂层的结合强度达到72.63Mpa,涂层与基体之间的结合状态良好;涂层的维氏硬度值（HV0.3）为1257.1,涂层的微观硬度值均匀,涂层致密度、韧性良好;涂层的孔隙率为1.5%左右,通过100Mpa耐水压试验,阀板工作面未出现渗漏现象,说明涂层致密度好,该孔隙率水平下满足高压闸阀的工作需要。
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| 关 键 词： | HVOF WC-10Co-4Cr 阀门 阀板 热喷涂 |
Application of HVOF with WC-10Co-4Cr on High Sluice Valve |
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| ZHU Cheng-cai , WANG Meng-yu , HOU Yu-bai , REN Xian-jing. Application of HVOF with WC-10Co-4Cr on High Sluice Valve[J]. Thermal Spray Technology, 2013, 5(1): 11-15 |
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| Authors: | ZHU Cheng-cai WANG Meng-yu HOU Yu-bai REN Xian-jing |
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| Affiliation: | 1,2 (1.Beijing General Research Institute of Mining and Metallurgy,Beijing 100160; 2.Beijing Engineering Technology Research Center of Surface Strengthening and Repairing of Industry parts,Beijing 100160) |
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| Abstract: | The surface of high sluice valves were strengthened by HVOF with WC-10Co-4Cr coat. The results shows that the bond-strengthen was 72.63Mpa, and the bond-strengthen between coat and base was in a high level; The average Vickers hardness value （HV0.3） was 1257.1. The micro-hardness was well-distributed, and the coat density and ductility was ideal; The coating porosity was about 1.5%. During a pressure testing at 100Mpa water pressure for half an hour, leakage was not found on the working surface of sluice valve. |
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| Keywords: | HVOF WC-10Co-4Cr Valve Sluice valve Thermal spraying |
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