刘基凯,苏新勇.装备修复用铜合金涂层制备方法及应用研究[J].表面技术,2016,45(9):134-139.
LIU Ji-kai,SU Xin-yong.Preparing Technology and Application of Cupreous Coatings in Equipment Repairing[J].Surface Technology,2016,45(9):134-139 |
| 装备修复用铜合金涂层制备方法及应用研究 |
| Preparing Technology and Application of Cupreous Coatings in Equipment Repairing |
| 投稿时间：2016-02-17 修订日期：2016-09-20 |
| DOI：10.16490/j.cnki.issn.1001-3660.2016.09.021 |
| 中文关键词: 铜合金涂层 电弧喷涂 耐磨抗冲蚀性能 装备维修 延寿保障 典型应用 |
| 英文关键词:cupreous coating electric arc spraying wear-resisting and erosion resistance equipment repairing extended life-span guarantee typical application |
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| 中文摘要: |
| 目的 为解决某型舰水泵叶轮轮毂等装备关键部件修复的难点问题，对电弧喷涂制备的铜合金涂层进行了重点研究。方法 通过光学显微镜、扫描电子显微镜、显微硬度计、拉伸试验机、磨损试验机等对所制备的涂层的显微形貌、显微硬度、结合强度、抗冲蚀性能等进行了评定。结果 采用电弧喷涂技术制备的铜合金涂层组织致密，涂层与基体之间的结合强度平均值为18.58 MPa，显微硬度平均值为187.5HV0.3，高于基体硬度，孔隙率平均值为4.1%，冲蚀角为30°和90°时，铜合金涂层的磨损质量分别为0.024 g和0.020 g，显示出优异的耐磨抗冲蚀性能。结论 采用电弧喷涂技术在水泵叶轮轮毂表面制备了铜合金涂层，不仅恢复了原设计尺寸，而且大幅提升了水泵叶轮表面的耐磨抗冲蚀性能，同时基体不产生变形，不需要进行动平衡试验，节能节材，预计使用寿命可提高3倍以上。该技术可为大、新型装备其他关键铜质部件维修保障提供新思路和新方法。 |
| 英文摘要: |
| Objective To solve the key difficulty in repairing a certain type of ship pump impeller hub and other key parts, key research is carried out on cupreous coating prepared by electric arc spraying. Methods The microstructure, microhardness, bonding strength and erosion resistance of the coating were assessed by optical microscope, SEM, microhardness tester, tensile testing machine and abrasion tester. Results The cupreous coatings were uniform in composition. The bonding strength between coating and substrate was 18.58 MPa; the microhardness was 187.5HV0.3 (higher than the substrate); and the average porosity was 4.1%. When the erosion angle was 30° and 90°, the wear mass was 0.024 g and 0.020 g respectively (the coating has excellent wear resistance). Conclusion Cupreous coating is prepared on water pump impellers by electric arc spraying technology, which not only recovers the primary dimension, but also improves the wear resistance. Meanwhile the substrate does not deform. No balance test is required. Energy and materials are both saved. It is estimated that the life span will extend for 3 times. This technology provides a new concept and method for repairing key copper parts of large and new equipment. |
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