According to elastic theory, this paper gives quantitative answers of stresses and deformations caused by the lateral contraction of longitudinal welding seam on the thin wall's cylinder.
利用弹性理论。给出了薄壁圆筒纵向焊缝的横向收缩引起的应力与变形的定量解答。
Evolvement process of longitudinal stress and residual stress field after welding are obtained.
得到了焊接过程中纵向应力的演变规律与焊后应力场的分布情况。
Evolvement of longitudinal stress and residual stress field after welding are obtained.
得到了焊接过程中纵向应力的演变规律与焊后应力场的分布情况。
The welding of high pressure boiler longitudinal weld shall be electric slag welding which may be replaced by improved auto-submerged arc welding when have no electric slag welding.
高压锅炉锅筒纵缝焊接时，采用的焊接设备为电渣焊。在不具备电渣焊的情况下用改进的埋弧自动焊成功的替代了电渣焊。
Burn through is the main problem of longitudinal seam welding of ultra-thin tube with small diameter. Assembly of the joint and welding technology are the key to solve the problem.
小直径超薄壁管纵缝焊接的主要问题是烧穿，解决这个问题的关键是严格控制焊接接头的装配质量及焊接工艺。
Welding temperature distribution was effected by the effective heated radius of the arc regulated by different external longitudinal magnetic intensity.
外加纵向磁场可以改变电弧加热有效半径进而影响焊接温度场分布。
The longitudinal cracks along bond line and the transverse cracks which cut across the weld metal cross section inside weld metal were formed, while X65 pipe line steel was welding.
X65管线钢在焊接过程中，内侧焊缝金属出现横向和纵向沿熔合线方向的裂纹，横向裂纹贯穿焊缝金属横截面。
The impacts of transverse and longitudinal shrinkage of welding seam on underframe positioning.
以及焊缝横向、纵向收缩对底架定位的影响。
Based on the research of reason of splatter generating in the process of short-circuiting transfer, it tries to control the splatter of CO2 welding by longitudinal magnetic field.
在研究短路过渡飞溅产生原因的基础上，初步尝试了用纵向磁场来控制CO_2气体保护焊飞溅。
This paper is about the effect of applied longitudinal magnetic field on Co-based plasma overlaying welding alloy.
本课题就是在钻基等离子弧堆焊过程中引入纵向直流磁场，利用磁场的作用提高堆焊层的性能。
This paper is about the effect of introducing longitudinal magnetic field on plasma overlaying of Fe-based and Ni-based welding alloy.
本课题就是在铁基和镍基的等离子弧堆焊过程中引入纵向直流磁场，利用磁场的作用提高堆焊层的性能。
The company can also design and manufacture all kinds of specialized welding machines, such as automatic longitudinal seam welder, circular seam welder etc.
本公司还可为用户设计，生产各类纵缝自动焊机，环缝自动焊机等专用焊接设备。
A flexural member is composed of a couple cold formed steel hat sections by spot welding on the longitudinal lips used in the Guangzhou new Baiyun Airport Buildings.
广州新白云机杨航站楼屋盖采用两个帽形冷弯型钢通过翼边板上纵向点焊形成组合箱形截面受弯构件。
The experimental on residual stress of welding joints indicates that the longitudinal residual stress distribution can be obtained.
该方法应用于实际焊缝应力的测量取得了良好的效果。
NC machine is used to ensure that longitudinal and circular weldings are produced at a constant speed and the welding point is always in flat position.
数控主机用于保证箱底纵、环焊缝焊速恒定并使焊接点始终处于平焊位置。
This article introduces weld formation of low carbon steel, stainless steel and al alloy by TIG welding in longitudinal intermittent alternative magnetic field.
研究了间歇交变纵向磁场TIG焊接不同材料(低碳钢、不锈钢和铝合金等)的焊缝成形。
This article describes the whole process of JCOE longitudinal submerged arc welding pipe made from rolling plate.
简述了采用热轧卷板制造直缝埋弧焊接钢管的全过程。
It was the first time that to make the longitudinal submerged arc welding pipe by rolling plate in our country or even in the world.
采用卷板制造直缝埋弧焊接钢管，在国内甚至世界上尚属首次。
Residual stress of longitudinal submerged arc welded pipe after welding is the major reason caused welded pipe stress corrosion crack, its stress level directly decide pipeline safety in service.
直缝埋弧焊管焊后残余应力是导致焊管应力腐蚀裂纹产生的主要原因。
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.
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。
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.
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。
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