摘要
N610E钢属ReL≥490 MPa调质高强钢,可适用于100 kJ大线能量焊接,首次应用于10万m3大型原油储罐的建造,钢板经检验和复验各项性能优良。设备的焊接工艺评定按JB 4708—2000和GB 50128—2005进行,数量较多,程序复杂。现场组焊遵循有关标准规范,尤其是通过调整壁板纵缝坡口型式和间隙控制了气电立焊线能量,结果表明N610E各项性能均满足10万m3大型原油储罐的建造。
N610E steel belongs to high -strength steel （ReL ≥490 MPa）. The steel can apply to welding of the high heat input. The steel firstly apply to 10 × 10^4 m3large - sized crude oil tanks and it is possessed of superior property. Qualification of welding procedure strictly according as JB 4708--2000 and GB 50128--2005 in the bulding site of storage tank. Sequence of site must base on standard specification because of plenty and complexity . Especially longitudinal joint of wainscot control welding root gap. Pro- duction test -plate＇s results are excellent. All results show that total property of the N610E can content with need of large- sized crude oil storage tank.
出处
《压力容器》
北大核心
2008年第11期34-38,共5页
Pressure Vessel Technology
关键词
失线能量焊接用钢
气电立焊
坡口间隙
steel of the high heat input
gas metal arc welding electrogas
groove gap
