摘要
通过对某公司的气瓶管样品进行宏观分析、无损检测、理化性能、金相及断口微观分析,发现气瓶管裂纹是由无缝钢管热轧过程中的折叠缺陷引起,气瓶生产收底过程中,折叠缺陷进一步扩展,最终导致气瓶管开裂。并对该批无缝钢管的质量检验以及热轧工艺提出建议。
Through visual inspection,non-destructively test,physical and chemical analysis,metallographic examination,and fraction surface analysis of the crack in the gas cylinder body,it was found that the crack was caused by folding defect during hot rolling process of seamless steel pipe. At the end of cylinder production,the folding defect expanded further to lead to the cylinder cracking. Some suggestions were given to the same batch seamless pipequality inspection and hot rolling technique.
作者
李金凤
任国琪
宋娟
吴双
雷云飞
LI Jinfeng REN Guoqi SONG Juan WU Shuang LEI Yunfei(CNPC Tubular Goods Research Institute, Xi＇an, Shaanxi 710077, China No. 3 Constrictioll Branch Compaay of CPP, Zhengzhou, Henan 451450, China)
出处
《石油管材与仪器》
2016年第5期30-35,共6页
Petroleum Tubular Goods & Instruments
关键词
气瓶
开裂
折叠缺陷
gas cylinder
crack
folding defect
