大壁厚SA182 F91锻制三通焊接工艺探究及应用
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摘要
针对大壁厚SA182 F91锻制三通的焊接问题,采取了焊接与热处理并重、严控坡口制备、充氩保护、预热、焊接、热处理工艺细节、依据钢种性能制定具有针对性的焊接工艺,三通安装完成后对焊接接头进行了全面金属检验,结果表明:各项指标满足要求,焊接接头质量合格,焊接效果良好,说明该工艺对大壁厚SA182 F91锻制三通焊接是可行的、有效的。
Aiming at the welding problems of big wall thickness SA182 F91 forged tee, laying equal stress on the welding and thermal treatment, the process details were strictly controlled such as the preparation of groove, argon filling protection, preheating, welding and thermal treatment. Based on the performance of the steel type, the focused welding process was made and the whole metal test was made after the tee installation was finished. The results show that each index meets the demand,welding joint is qualified with better welding effects. The process is feasible and effective for the big wall thickness SA182 F91 forged tee.
Aiming at the welding problems of big wall thickness SA182 F91 forged tee, laying equal stress on the welding and thermal treatment, the process details were strictly controlled such as the preparation of groove, argon filling protection, preheating, welding and thermal treatment. Based on the performance of the steel type, the focused welding process was made and the whole metal test was made after the tee installation was finished. The results show that each index meets the demand,welding joint is qualified with better welding effects. The process is feasible and effective for the big wall thickness SA182 F91 forged tee.
引文
[1]火力发电厂金属技术监督规程:DL/T438-2016[S].
[2]曹剑峰,马忠于,周宇伟,等.国产600 MW级超临界机组F91锻制大三通的质量控制[C].//中国电机工程学会电力行业无损检测学术会议,2012:459-460.
[3]高温用锻制或轧制合金钢和不锈钢法兰、锻制管件、阀门和部件ASME SA182/SA182M[S].
[4]沈雪峰.F91钢窄间隙热丝TIG焊接接头高温持久性能及组织演变[D].上海,上海交通大学,2013:12-13.
[5]杨婕.火力发电厂主蒸汽管道P91材料现场焊接工艺[J].宁夏电力,2012(2):45-49.
[6]火力发电厂焊接技术规程:DL/T 869-2012[S].
[7]国家电力公司电源建设部.T91/P91钢焊接工艺导则.北京:2002
[8]魏雪.主蒸汽隔离阀用F91材料热处理与焊接性能的研究[D].大连,大连理工大学,2016:18-21.
[9]火力发电厂焊接热处理技术规程:DL/T819-2010[S].
[2]曹剑峰,马忠于,周宇伟,等.国产600 MW级超临界机组F91锻制大三通的质量控制[C].//中国电机工程学会电力行业无损检测学术会议,2012:459-460.
[3]高温用锻制或轧制合金钢和不锈钢法兰、锻制管件、阀门和部件ASME SA182/SA182M[S].
[4]沈雪峰.F91钢窄间隙热丝TIG焊接接头高温持久性能及组织演变[D].上海,上海交通大学,2013:12-13.
[5]杨婕.火力发电厂主蒸汽管道P91材料现场焊接工艺[J].宁夏电力,2012(2):45-49.
[6]火力发电厂焊接技术规程:DL/T 869-2012[S].
[7]国家电力公司电源建设部.T91/P91钢焊接工艺导则.北京:2002
[8]魏雪.主蒸汽隔离阀用F91材料热处理与焊接性能的研究[D].大连,大连理工大学,2016:18-21.
[9]火力发电厂焊接热处理技术规程:DL/T819-2010[S].