冷轧工艺对超超临界无缝钢管TP310HCbN外表面横裂的影响  

The Effect of Cold-rolled Crafts on Super Critical Seamless Steel Pipe TP310HCBN Outer Surface Cracking

作　　者：吴桂 李鹏 康喜唐 程逸明 张琳 拓雷锋[2] 楚志兵[2] Wu Gui;Li Peng;Kang Xitang;Cheng Yiming;Zhang Lin;Tuo Leifeng;Chu Zhibing(Shanxi Taigang Steel Stainless Steel Steel Pipe Co.,Ltd.,Taiyuan Shanxi 030003,China;School of Materials Science and Engineering,Taiyuan University of Science and Technology,Taiyuan Shanxi 030024,China)

机构地区：[1]山西太钢不锈钢钢管有限公司,山西太原030003 [2]太原科技大学材料科学与工程学院,山西太原030024

出　　处：《山西冶金》2024年第11期3-6,共4页Shanxi Metallurgy

摘　　要：介绍了超超临界锅炉管国产化的现状,研究了冷轧变形量与热处理温度对TP310HCbN成品奥氏体不锈钢无缝钢管表面横裂的影响。结果表明:当应变量在20%、半成品固溶温度在1200~1270℃之间时,随着温度的升高,晶粒越来越粗大,晶粒度在2~7级,外表面有环向横裂现象且无法消除;调整工艺后半成品在1240~1250℃之间进行固溶处理,冷轧变形量在30%~40%时钢管外表面横裂现象消除。This article introduces the status quo of supercritical boiler tube tubes,and studies the effects of cold-rolled deformation and thermal treatment temperature on the surface of the seamless steel pipe surface of the Octoberian stainless steel for TP310HCBN.The semi-grade solid solution temperature is between 1200~1270℃.With the temperature rises,the grains are getting thicker and larger,the grain size is 2~7,and the outer surface has a circular horizontal cracking phenomenon and cannot be eliminated.After the adjustment process is adjusted,after the adjustment process The semi-finished product is solid-soluble between 1240~1250℃,and the surface of the steel tube is eliminated when the deformation is 30%~40%.

关 键 词：热处理 TP310HCbN 横裂 晶粒度 轧制 

分 类 号：TG335.12[金属学及工艺—金属压力加工]