14Cr1MoR+022Cr17Ni12Mo2复合材料的焊接结构及焊接工艺

Research on Welding Structure and Welding Technology of 14Cr1MoR+022Cr17Ni12Mo2 Composite Material

煤化工激冷罐的壳体材料采用14Cr1Mo R+022Cr17Ni12Mo2复合板,板材较厚,焊接难度较大。通过分析研究和焊接工艺试验,确定了适合的焊接方法、焊接材料、焊接坡口、焊接顺序以及热处理工艺,有效地避免了焊接过程中基层对复层的稀释作用和碳迁移,显著地提高了整个设备焊缝的焊接质量,取得了良好的效果。

The shell of coal chemical quench tank is made from 14CrlMoR＋022Cr17Ni12Mo2 clad plate which thickness is relatively thick, therefore, it is hard to weld. Through the analysis research and welding procedure test, ultimately determines the appropriate welding method, welding material, welding groove, welding sequence and the heat treatment technology, which effectively avoids the dilution of base layer on multilayer and the carbon migration from base layer to muhilayer, and significantly improves the quality of the welding seams in the equioment.