The welding process of X65Q+CRA625 clad composite pipe was analyzed in this paper.The welding method of this process was GTAW.According to the special situation that the base material was high-strength X65Q pipeline steel and the composite layer was nickel based material,a reasonable preheating/interpass temperature was formulated.According to the operation characteristics of welding materials,the key points of welding were summarized.Through the test of welded joint,the rationality of this welding process was determined to meet the welding quality requirements of the composite pipe.
关键词
X65Q+CRA625冶金复合管/Inconel/625镍基合金/焊接工艺/焊接控制要点
Key words
X65Q+CRA625 clad composite pipe/Inconel 625 nickel base alloy/welding process/key points of welding
维普
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