众所周知,珠光体耐热钢管(15XM、12x1Mφ、及其它钢种的焊接接头一般都要热处理,以降低焊接残余应力,同时还将使焊接接头的金属组织和化学成份的不均匀性得到调整和重新分布。管子热处理是一项既费工又耗电的复杂工序,因此科研人员多年来致力于尽可能取消热处理的研究工作,这样就能节省大量劳力,对火力发电厂的设备 As we all know, pearlite heat-resistant steel pipe (15XM, 12x1Mφ, and other types of steel welded joints are generally heat treatment to reduce the welding residual stress, but also will weld the joint metal structure and chemical composition of the non-uniformity will be adjusted and re- Distribution. Tube heat treatment is a complicated and power-consuming process, so researchers for many years committed to eliminating the heat treatment as much as possible, so that you can save a lot of labor, the thermal power plant equipment