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
吴桂 1李鹏 1康喜唐 1程逸明 1张琳 1拓雷锋 2楚志兵2
作者信息
- 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
- 折叠
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1 200～1 270℃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1 240～1 250℃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.
Abstract
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 1 200～1 270 ℃.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 1 240～1 250℃,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Key words
hot treatment/TP310HCBN/horizontal cracking/grain size/rolling引用本文复制引用
出版年
2024
NETL
NSTL
万方数据