摘要
STPL-46(3.5Ni)低温钢用于辽河油田引进的轻烃回收装置。装置在低温下操作,为了保证这种钢材焊接接头在使用时的低温冲击韧性,采用氩弧焊封底;严格控制焊接工艺条件;焊缝用电感应方法退火,并在施工中采取了一系列工艺措施。100％的焊缝经RT(X射线探伤试验)检查,一次合格率达92.8％在-63℃低温条件下,经一年多运行考核,满足设计使用要求。
The STPL-46(3. 5Ni) low temperatrue steel used for the imported LPG recovry equip- ments in Liaohe oil field. Because such equipments are operated at low temperature, so the impact flexibility of welding joints must be guaranteed. In the welding practice the following measures were taken; using argon are welding for back sealing; controlling weld parameters strictly; an- nealing welding seams by electric induction. The qualified ratio of welds tested by X-ray reach to 92. 8%. The design requirments have been met at-63℃ low temperature for one year operation.
出处
《石油工程建设》
北大核心
1989年第3期24-27,共4页
Petroleum Engineering Construction
