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目前,俄罗斯对不锈钢管道焊接接头进行局部热处理的方法有稳定退火和奥氏体化。介绍了稳定退火热处理工艺常用加热器及其固定安装方法,奥氏体化热处理与稳定退火加热器的区别,奥氏体化热处理常用加热设备及其安装,奥氏体化热处理的冷却方式。简要介绍了英、美等国常用奥氏体化热处理工艺。给出了不锈钢管道焊接接头局部热处理时应注意的事项,对我国同类管道焊接接头的局部热处理有一定借鉴作用。
At present, Russia’s method of local heat treatment of stainless steel pipe welded joints has stable annealing and austenitizing. Introduced the steady annealing heat treatment process commonly used heaters and fixed installation method, the difference between austenitizing heat treatment and stable annealing heater, austenitizing heat treatment commonly used heating equipment and installation, austenitizing heat treatment cooling. Briefly introduced the British, the United States and other countries commonly used austenitic heat treatment process. The issues that should be paid attention to when the stainless steel pipe welded joints are locally heat treated are given, which can be used as a reference for the local heat treatment of similar welded joints in our country.