1) large diameter longitudinal seam submerged arc welding(LSAW) pipe
大型直缝埋弧焊钢管
2) longitudinal submerged arc welding pipe
直缝埋弧焊钢管
1.
It briefly introduces the importance of pre-bending process for production of longitudinal submerged arc welding pipe,function of pre-bending and pre-bending procedure,and analyzes main pre-bending process parameter,such as radius of curvature of upper mould,pre-bending length and pre-bending coiling angle and pre-bending force,etc.
简要介绍了直缝埋弧焊钢管生产线预弯工序的重要性、预弯的功能以及预弯工艺过程。
2.
The purpose of prebending process of longitudinal submerged arc welding pipe production line is introduced;character of roller prebending and mould press type prebending is analyzed.
介绍了直缝埋弧焊钢管生产线预弯工艺的目的,分析了辊式预弯和模压式预弯的特点,指出当前直缝埋弧焊钢管生产线中普遍采用模压式预弯工艺。
3) Longitudinal submerged arc welded pipe
直缝埋弧焊钢管
1.
It shows that China has basically been provided with the capacity to supply longitudinal submerged arc welded pipe which can meet the requirements of API Spec.
通过对国内已经生产的直缝埋弧焊钢管母材与焊缝力学性能指标以及钢管几何尺寸指标的列举,说明我国已经基本具备了为海底管线提供符合API SPEC 5L、DNV-OS-F101等规范要求的直缝埋弧焊钢管的能力。
4) SAW process for straight welded steel pipe
钢管直缝埋弧焊
5) LSAW pipe
直缝埋弧焊钢管
1.
With regard to transverse cracks during LSAW pipe production,this article analyzed generating reasons from two aspects of stress status and production technology,put forward preventing transverse cracks through improving welding materials and conductive electricity nib,reducing low melting point impurity copper,as well as longitudinal drawing stress.
针对直缝埋弧焊钢管生产过程中的焊缝横向裂纹,从焊接过程中的应力状态和生产工艺方面分析了焊缝横向裂纹产生的原因,并指出通过改进焊接材料及相关的焊接设备、降低焊接时的低熔点杂质铜含量以及降低焊接过程中的纵向拉应力等途径可有效防止焊缝横向裂纹的产生,保证焊接质量。
6) LASW
大直缝埋弧焊管
1.
It can ensure welding seam′s quality of LASW.
介绍钢板铣边机采用的浮动铣削单元的主要结构,解决了铣削时由于钢板本身平面度误差影响焊接坡口一致性的难题,保证了大直缝埋弧焊管的焊缝质量。
补充资料：大型
1.形状或规模大的。
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