Lamellar tearing is one of the main defects in flash-butt welded joint of Al—Zn—Mgallog type 7003.
层状裂纹是7003铝合金挤压材料对焊接头中最主要的缺陷之一。
This kind of nanostructured surface layer with compressive stress could significantly increase the fatigue strength of butt welded joint.
这种压应力纳米强化层可以明显地提高对接接头的疲劳性能。
In this paper, the residual welding stresses in a low carbon steel girth butt welded pipe are calculated with a nonlinear finite element code ADINA.
本文利用ADINA非线性分析有限元程序，对低碳钢管道环焊缝接头焊接残余应力进行计算。
This paper introduces the ultrasonic inspection technics in the butt welded-joints of T91 small diameter tubes, and discusses its technical feasibility.
介绍t 91钢小径管焊接接头的超声波探伤工艺，并就工艺的可行性进行探讨。
The present invention is the production process of steel flange blank, especially of flat flange, butt welded flange and prestressed pipe pile end plate flange.
一种钢法兰毛坯加工工艺，尤其是一种平法兰、对焊法兰、预应力管桩端板法兰毛坯加工工艺。
The mechanical properties of the butt welded joints have been evaluated according to the impulsive and fracture toughness as well as the rate and threshold values of fatigue crack propagation.
根据试验测定的焊缝各区冲击韧性、断裂韧性、疲劳裂纹扩展速率和疲劳裂纹扩展门槛值，对焊缝力学性能作出综合评价。
Having been practiced for several years, a new butt method for spiral welded pipe, the two spots tack-weld butt was made out.
通过几年来的实践，摸索总结出了一种螺旋焊管对接新方法——两点点固对接法。
In the long pipeline, because the end surfaces of the welded pipes have the geometrical errors which induce the butt weld defects, the stress corrosion crack will occur.
在长输管道生产中，由于焊管管端几何形状误差而引起的对接焊缝缺陷是造成应力腐蚀断裂的主要原因之一。
BT20 titanium alloy is welded with butt welding on GTAW machine... Experiment of plastic deformation is done on press and double heat preservation measure is used during plastic deformation.
试验采用钨极氩弧焊对接焊形式对BT 20钛合金施焊；焊接接头的塑性变形试验在油压机上进行，变形过程中采用了双保温措施。
And the welding connecting of them are advised to use slope butt weld that are fully welded, but when the double-sided fillet weld is used, they should be design on equal strength.
节点中的焊接宜采用完全焊透的坡口对接焊缝连接，当采用双面角焊缝连接时，可按等强设计。
Germany RBT import external thread needle valve can be equipped with stainless steel welded pipe, and pipeline butt welding connection, but also through the outer nut removing the valve.
品牌：进口外螺纹针型阀可配带不锈钢焊接管，能与管道直接对焊连接，也可通过外螺母拆卸阀门。
The round plates with arc shaped butt-welded joints were used for stopping sone tube holes which were moved away to another proper positions in the pipes.
采取有弧度的圆形镶块，以对接接头的形式堵补部分管孔，将其移位到管道上的合适位置。
The status of the radiographic technology for the butt-welded joints in small diameter tubes are re-viewed briefly. The key points are discussed for the development of radiographic technology.
简要评述小直径管对接焊缝射线照相的特点、方法以及现行技术规定。
The status of the radiographic technology for the butt-welded joints in small diameter tubes are re-viewed briefly. The key points are discussed for the development of radiographic technology.
简要评述小直径管对接焊缝射线照相的特点、方法以及现行技术规定。
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