超超临界锅炉用SA-335P92钢的焊接工艺性能研究  

Welding technology of SA-335P92 steel uesd in USC boiler

作　　者：李宜男[1] 杨松[1] 丁冶[1] 

机构地区：[1]哈尔滨锅炉厂有限责任公司,150046

出　　处：《焊接》2007年第6期44-46,共3页Welding & Joining

摘　　要：通过铁研试验及热模拟试验等对超超临界锅炉用SA-335P92钢的焊接性进行了研究。铁研试验表明,材料焊前钨极氩弧焊时预热温度≥150℃,焊条电弧焊和埋弧焊时预热温度≥200℃可以保证焊接不出现裂纹。通过焊缝粗晶区冲击试验,确定了合理的焊接热处理规范。进行了相应的使用焊接性试验,给出了SA-335P92材料的焊接工艺要点。The weldability of SA-335P92 steel applied in ultra - supercritical( USC) boiler has been researched by slit cracking test and synthetic heat-affected zone test. It is indicated in the slit cracking test that there is no cracking for SA-335P92 material welding when the preheating temperature is higher than 150 ℃ for GTAW and 2001℃ for SMAW and SAW. The synthetic heat-affected zone test confirms the post heat treatment specification and the welding procedure of SA-335P92 steel.

关 键 词：超超临界锅炉 SA-335P92钢 焊接性试验 

分 类 号：TG44[金属学及工艺—焊接]