4000m~3球罐用钢NK-HITEN610U2的焊接
Welding of Steel NK-HITEN610U2 Used in 4000 m3 Spherical Tank
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- DOI:
- 作者:
- 胡炜1, 罗晓军1, 邓涛2
HU Wei1, LUO Xiao-jun1, DENG Tao2
- 作者单位:
- 1.中石油第二建设公司,甘肃兰州 730060;
2.兰州石油化工公司国际事业公司,甘肃兰州 730060
Second Construction Company,SINOPEC,Lanzhou,Gansu 730060,China
- 关键词:
- 球罐;NK-HITEN610U2钢;焊接;工艺;质量控制
spherical tank;steel NIA-HITEN610U2,welding;process;quality control
- 摘要:
- 中石油第二建设公司承建的4000m3球罐是兰州石化公司300万t/a重油催化裂化装置的配套工程,该球罐的球壳材料采用日本NKK公司生产的NK-HITEN610U2钢,文章对NK-HITEN610U2钢的化学成分和力学性能进行了分析,该钢属于低焊接裂纹敏感性高强钢,具有良好的焊接性和抗裂性,焊接该类钢主要是防止产生冷裂纹和热影响区脆化,控制线能量是焊接工艺措施中的关键.另外,控制焊条熔敷金属扩散氢含量犤H犦、选择适当的预热温度和焊后及时进行消氢处理,也是防止冷裂纹和热影响区脆化必不可少的措施.按照工艺评定确定的参数对4000m3球罐进行焊接,取得了良好的效果.
The shell material of a 4 000 m3 spherical tank that was constructed by CNPC Second Construction Company,is steel NIA-HITEN610U2 produced by NII Company of Japan.After analyzing the chemical composition and mechanical property,it is realized that the focus of that steel weldability should be on preventing cold cracks and heat influence zone embrittlement;the absolutely necessary measures are to control linear energy and diffusible hydrogen content in electrode deposited metal,to proper pre-heat temperature and to punctually perform hydrogen-eliminating treatment.According to the parameters obtained from process assessment,the spherical tank welding was successfully done.2005,6(6): 55-57 收稿日期：2005-8-22分类号：TE972.5作者简介：胡炜(1973-),男,甘肃静宁人,工程师,1996年毕业于辽宁石油化工大学,现主要从事工程技术管理、压力容器制造及焊接等工作.参考文献：
[1] 陈祝年.焊接工程师手册[M].北京:机械工业出版社,2002.
[2] 汪琳.NK-HITEN610U2钢制1000m3丙烯球罐设计[J].化工设备与管道.2002,(5):55-62.