13MnNiMoNbR钢的焊接工艺

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作者单位:: 1. 承德石油高等专科学校, 河北承德 067000;
2. 胜利油田胜利石油化工建设有限责任公司, 山东东营 257073
Chengde Petroleum School, Chengde 067000, China

关键词:: 高强度钢;厚板;压力容器;焊接工艺
high strength;steel;thick plate pressure;vessel welding process

摘要:: 13MnNiMoNbR钢是一种强度等级较高、综合性能良好的结构钢，用于制造高温、高压容器。其厚度为46mm的钢板在焊接过程中容易开裂，焊接接头冲击韧性值难以保证。通过工艺方案选定和工艺评定试验，探索制订了最佳工艺参数，使焊接的高压汽水分离器筒体达到了质量要求。射线探伤一次合格率为98.5%，超声波探伤结果全部为I级。
13MnNiMoNbR steel is a kind of structural steel with higher strength grade and perfect overall performance used in manufacture of high temperature and pressure vessels. Among them the steel plate with the thickness of 46 mm is susceptible to fracture during welding, and the proper impact flexibility of welds is difficult to guarantee. After the selection of process scenario and process assessment test, the optimal process parameters are found and the welded cylinder of the high pressure separator satisfies the quality demands. The primary qualification rate by radiation detection is about 98.5%,the all results obtained by ultrasonic detection are at grade I.

2007,2(2): 53-54 收稿日期：2006-7-22

分类号：TE973.3;TG457.11

作者简介：苏海青（1961- ），男，内蒙古赤峰人，1983 年毕业于国防科技大学金属材料专业，教授，主要从事金属材料、焊接检验等方面的教学、研究及教学改革研究与管理工作。