激光熔覆修复青铜零件的实验研究和工程应用
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摘要
青铜具有极好的耐海水腐蚀性和耐磨损性能,在舰艇、船舶中大量存在青铜零件,但对这些零件进行修复非常困难。由于青铜对激光的强烈反射及其优良的热传导性,给激光熔覆修复青铜零件带来了很大的困难。通过激光熔覆修复实验,优化了激光熔覆修复工艺参数。在对激光熔覆修复过程进行最优控制的条件下,获得了界面结合良好、耐腐蚀性和耐磨损性均符合要求的激光熔覆修复试样。在此基础上,实现了对实际舰船青铜零件的激光熔覆修复。
The bronze has excellent corrosion resistance and abrasion resistance. There are a large number of bronze parts in ships and warships. But the repair of these parts is very difficult. Due to the strong reflection to the laser and the excellent thermal conductivity of bronze,it also brings great difficulties in laser cladding repair. The experimental parameters of laser cladding repair were optimized by laser cladding repair experiment. Under the condition of the optimal control of laser cladding repair process,the laser cladding repair samples with good interface,corrosion resistance and wear resistance are obtained. On the basis of the experiment,the laser cladding repair of the bronze parts of the actual ship is realized.
The bronze has excellent corrosion resistance and abrasion resistance. There are a large number of bronze parts in ships and warships. But the repair of these parts is very difficult. Due to the strong reflection to the laser and the excellent thermal conductivity of bronze,it also brings great difficulties in laser cladding repair. The experimental parameters of laser cladding repair were optimized by laser cladding repair experiment. Under the condition of the optimal control of laser cladding repair process,the laser cladding repair samples with good interface,corrosion resistance and wear resistance are obtained. On the basis of the experiment,the laser cladding repair of the bronze parts of the actual ship is realized.
引文
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[4]葛志军.有色金属上激光熔覆的实验研究[D].上海:上海交通大学,2007.
[5]张伟,姚建华.海水泵轴激光修复试验研究[J].应用激光,2004,24(6):342-344.
[6]黄开金,周金鑫,谢长生,等.裂纹修复与激光技术[J].金属热处理,2002,27(3):1-4.
[7]杨胶溪,左铁钏,王喜兵,等.锰青铜表面激光熔覆镍基合金的微观组织[J].中国激光,2008,35(11):1766-1769.