On-line temperature monitoring and process diagnosis of plasma sprayed coatings
On-line temperature monitoring and process diagnosis of plasma sprayed coatings作者机构：College of Automotive Engineering Wuhan University of Technology Wuhan 430070 College of Material Science and Engineering Huazhong University of Science and Technology Wuhan 430074.
出 版 物：《China Welding》 (中国焊接（英文版）)
年 卷 期：2010年第19卷第3期
页 面：21-24页
核心收录：
学科分类：12[管理学] 1201[管理学-管理科学与工程(可授管理学、工学学位)] 081104[工学-模式识别与智能系统] 08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0835[工学-软件工程] 0811[工学-控制科学与工程] 0812[工学-计算机科学与技术（可授工学、理学学位）]
基 金：The work is supported by the National Natural Science Foundation of China (No. 51005085)
主 题：plasma spraying coating temperature temperature field coating damage process diagnosis
摘 要：On-line temperature monitoring of plasma sprayed coating is presented, which is based on IR pyrometery combined to robot trajectories. Temperature fields of the substrate before spraying and the deposited coating when the damage happens are taken to investigate the temperature fluctuation information. Experimental results demonstrate that coating damage always occurs in the temperature transition area of the substrate from the higher to the lower, as well as the higher temperature area. The temperature difference between the peak and the mean of the relevant regions is beyond 30 - 50℃ or even higher. This case provides the omen of coating damage and the focusing scopes for the process control of coating temperature in plasma spraying
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