摘要
针对X70管线钢进行了焊接性分析,确定其预热温度。通过合理的接头设计,恰当的焊接工艺参数,来控制焊接热输入,确保接头的性能,并依据API110 4标准对所制定的焊接工艺进行评定,取得了满意的效果。通过此工艺施工的焊接接头具有较高的安全性。
Analyzed the weldabilit y of X70 pipeline steel,determined the p re-heating temperature to prevent delaye d crack,assured the capability of weldin g joint through choosing excellent joint design and welding parameters.Then,made the visual examination and x-ray test a nd destructive test according to API1104 standard after finishing welding,every item results meet the requirements of th e relevant standards.The welding Joints are very safe.
出处
《管道技术与设备》
CAS
2005年第2期21-22,共2页
Pipeline Technique and Equipment
关键词
焊丝
预热
下向焊
Welding Wire
Pre-heati ng
Down Hill Welding
