In situ post-weld heat treatment on martensitic stainless steel turbine runners using a robotic induction heating process to control temperature distribution
In situ post-weld heat treatment on martensitic stainless steel turbine runners using a robotic induction heating process to control temperature distribution
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使用机器人感应加热工艺控制温度分布，对马氏体不锈钢涡轮转轮进行原位焊后热处理
DOI：
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发表时间：
2014
期刊：
影响因子：
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通讯作者：
Stéphane Godin
中科院分区：
文献类型：
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作者：
É. Boudreault;B. Hazel;Jean Cote;Stéphane Godin
开发了一种新的机器人热处理工艺。使用这种解决方案，现在可以对大型钢部件进行局部热处理。汽轮机叶片和冲击式水斗的裂纹、气蚀和冲蚀修复是该技术的应用之一。概念验证是在名为“CA6 nm”的13Cr-4Ni不锈钢上进行的。该合金广泛应用于电力工业的现代系统部件。鉴于该合金焊后热处理的温度公差非常严格(600至630°C)，13Cr-4Ni不锈钢非常适合展示这一工艺的可能性。为了满足热处理要求，感应加热系统安装在名为“SCompi”的紧凑型机械手上。这个机器人移动一个煎饼线圈来控制温度分布。首先使用热有限元分析模拟器进行路径规划。反馈回路根据环境条件调整参数。
A new robotic heat treatment process is developed. Using this solution it is now possible to perform local heat treatment on large steel components. Crack, cavitation and erosion repairs on turbine blades and Pelton buckets are among the applications of this technique. The proof of concept is made on a 13Cr-4Ni stainless steel designated "CA6NM". This alloy is widely used in the power industry for modern system components. Given the very tight temperature tolerance (600 to 630 °C) for post-weld heat treatment on this alloy, 13Cr-4Ni stainless steel is very well suited for demonstrating the possibilities of this process. To achieve heat treatment requirements, an induction heating system is mounted on a compact manipulator named "Scompi". This robot moves a pancake coil in order to control the temperature distribution. A simulator using thermal finite element analysis is first used for path planning. A feedback loop adjusts parameters in function of environmental conditions.