文档介绍：高速电弧喷涂在船舶尾轴修复中应用
赵辉，曾志龙
摘 要：以某推轮已磨损左右尾轴轴颈修理为例，介绍了采取热喷涂技术修理尾轴时涂层制备方法及涂层材料选择、涂层厚度确实定、热喷涂关键工艺过程及涂层加工等相关技术问题。该方法含有可靠、快速、经济优点，可供修理船舶尾轴等轴类零件维修人员参考。
关键词：热喷涂；高速电弧喷涂；船舶尾轴；修复；涂层设计
中图分类号： 文件标识码：A 文章编号：1671-7953（）03-0064-04
Application of High Velocity Arc Spraying
in Repairing of Marine Tail shafts
ZHAO Hui ZENG Zhi-long
(College of Energy & Power Engineering, WUT, Wuhan 430063)
Abstract: With an example of repairing of the worn left and right tail shafts of a vessel, the choice of coating fabrication methods and coating materials, main thermal spraying processes and coating machining were introduced in this paper. This technique possesses the advantages of reliability, short repair period and low cost. This provides reference for persons in charge of repairing marine tail shaft and other shaft components.
Key works: thermal spraying; high velocity arc spraying; marine tail shafts; repairing; coating design
船舶尾轴是船舶轴系关键组成部分，它工作情况直接关系到船舶运行安全性，当尾轴产生严重磨损、腐蚀及划伤时，就必需对其进行修理。尾轴拆验须在船坞内（或船台上）进行，修理工期长、费用大，往往影响整个船舶修理工期，所以怎样快速、可靠、经济地对磨损尾轴进行修理一直为修船企业所重视[1]。
某长江推轮为二机二桨推进系统，其尾轴长度为4500mm，首轴承长度为300mm，尾轴承长度为370mm，，，。，，。该船尾轴承采取油润滑，。由此可见：尾轴轴颈和孔间隙已严重超差，尤其是
尾轴承轴颈和孔间隙已扩