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简要说明了1Cr18Ni9Ti铬镍奥氏体不锈钢材质的焊接性,论述了1Cr18Ni9Ti铬镍奥氏体不锈钢管45°固定焊条电弧焊的操作要领,以及与其他位置的管子固定焊的区别。依据铬镍奥氏体不锈钢材质的特性,对如何选用合适的焊接材料以及适用的工艺参数进行了分析。介绍了焊接1Cr18Ni9Ti铬镍奥氏体不锈钢的关键点,详述了焊前准备,焊接设备的选用,试件的组对及定位焊的工艺要求,并对焊接工艺特点、注意事项、打底焊和盖面焊接的方法以及焊接操作手法等进行了详细叙述。并对焊后外观的清理提出了要求,说明了外观检验、X射线探伤、耐腐蚀性能及力学性能试验检测标准的依据。
The weldability of the 1Cr18Ni9Ti chrome-nickel austenitic stainless steel is briefly described. The operating principle of the arc welding of the 1Cr18Ni9Ti chrome-nickel austenitic stainless steel tube with a 45 ° fixed electrode is discussed, and the difference between the pipe fixing welding with other positions is also discussed. According to the characteristics of chromium-nickel austenitic stainless steel, how to choose the right welding material and the applicable process parameters were analyzed. The key points of welding 1Cr18Ni9Ti chrome-nickel austenitic stainless steel are introduced. The preparation of welding before welding, the selection of welding equipment, the pair of test pieces and the process requirements of positioning welding are described in detail. The characteristics of welding process, precautions, The method of welding with the cover and the welding operation method are described in detail. After the appearance of the weld and put forward the requirements of clean-up, indicating the appearance of inspection, X-ray inspection, corrosion resistance and mechanical properties of test criteria based on.