焊缝表面不得有裂纹，气孔，夹渣等严重缺陷。
Any severe deficiency of welding seams surface like cracks, pores, slags is forbidden.
打磨焊缝表面缺陷或机械损伤后的厚度小于母材的厚度。
Seam surface defect after grinding or thickness is lower than base material after mechanical treatment.
而在光丝间距和离焦量变化过程中，激光束对复合热源平板堆焊焊缝表面成形的影响很小。
The influence of Nd:YAG laser on hybrid weld appearance is light in variation of laser-arc distance and defocusing distance.
而对于实心焊丝，在较大焊接工艺规范下，很容易出现焊缝表面的氧化起皱，焊缝成型不良。
Compared with cored wire, the solid wires have not so good welding usability showing oxidized and crinkled weld appearance as the welding parameters are greater.
在上海炼油厂预加氢反应器投用前的内外部检验中，发现了大量的焊缝表面裂纹和内部埋藏裂纹。
On overall inspection of interior and exterior of pre-hydrogenating reactor of Shanghai Oil Refinery Factory, large cracks was found on the surface of weld and inside of the weld.
研究结果表明，采用本文中的酸洗工艺可以有效清除不锈钢焊缝表面的氧化皮，并改善其耐点蚀性能。
Test results showed that the optimized pickling process could clean oxide skin of weld surface in effect and improve pitting-resistance property greatly.
双缝高速次级整流缝焊是一项新工艺，具有焊接质量好、焊接速度快、焊缝表面光洁及能耗低等优点。
A new process of high speed seam welding with secondary rectification for double seam possesses good weld quality, high welding speed, smooth bead and low consumption features.
由于镁合金不填丝的TIG焊接接头强度低，焊缝表面成型不好，所以，镁合金的填丝tig焊接方法不可避免。
Because TIG welded joints without filler wire always hold low strength and poor formation, tungsten inert gas welding process with filler wire is inevitable.
根据计算和经验，侧弯伸长率小，且焊缝表面经过加工，不受表面质量影响，所以试验结果更接近实际，更为准确。
On the basis of calcuiation and experience, through side-bending test, test piece's extensibility is relative small, and its weld surface after processed is unaffected by the piece's surface quality.
触点痕。由于供焊接电流的电极与管子表面间的电接触，致使在焊缝线附近产生不连续痕迹。
Contact mark. Intermittent marks adjacent to the weld line resulting from the electrical contact between the electrodes supplying the welding current and the pipe surface.
而定位格架的表面颜色、钎焊缝质量、外形尺寸、破断力和结合层厚度均达到钎焊技术要求。
The grids completely meet with the requirements for soldering on surface color , welds quality, overall dimension, rupture stress and joint thickness.
焊缝成型的变化是电弧收缩与表面张力变化双重作用的结果。
The transformation of weld forming is the results of dual functions of arc shrink and surface tension change.
焊缝导向弯曲试验的目的是检查焊接接头的完好性和塑性以及材料的焊接工艺和表面缺陷。
The purpose of weld guide bending test is to detect plasticity of welding joint, welding process and surface defects of materials.
焊接溅落包括无意地从熔融池中溅出的金属颗粒并落到了母体金属或焊缝金属的表面。
Weld spatter consists of particles of metal unintentionally ejected from the molten pool during welding and deposited on the surface of base or weld metal.
焊缝及附近的环向残余应力在内、外表面均为拉应力。
Hoop residual stress es in the weld vicinity are tensile in both inner and outer surfaces.
返修后的补焊焊缝必须修磨表面，使其外形与原焊缝大体一致，不得过宽过高。
Welds should be grinded after reworking to keep the shape similar to the old welds.
研究了阴极辊焊缝处组织与电解铜箔表面上形成的光亮带之间的关系。
The relationship of the welding seam microstructure of the drum cathode and the light region forming on the copper foil surface was studied.
采用合理的焊前表面处理工艺、全熔透焊接可获得无气孔的焊缝。
The weld can performed free of porosity for full penetration weld when proper surface treatment processing prior to welding is employed.
表面张力、电弧吹力和电磁搅拌力均有利于获得较大的熔深，浮力有利于增加焊缝中间部位的宽度。
The surface tension, arc blow force and electromagnetic force work positive to improve the penetration, and the buoyancy can increase the width in the middle of weld pool.
定量及SEM分析表明，焊缝中表面只残留少量锌，在焊缝两侧的热影响区，锌层厚度呈梯度分布。
Through quantitative and SEM analysis, the minim zinc was found remaining on the surface of weld and the zinc thickness on the heat-affected zones appeared gradient.
本文针对焊缝熔敷金属在高强时，容易开裂问题展开研究，研制了中、高碳合金钢工件表面修复的高强、高韧新型堆焊焊条。
The high strength and high toughness hardfacing covered electrode to the medium-high carbon alloy steel surface' repair was put forward in this paper.
又算出了这五种形状角焊缝趾端部和焊肉中央处的表面裂纹疲劳断裂的寿命。
The fatigue life of the surface cracks of the weld toe and the central part of the welding bead are calculated.
结果表明，在表面焊道下面并且离开焊缝中心线若干距离的地方，出现相当高的三向拉伸应力和大的塑性应变积累。
The results show that the triaxial residual stresses and plastic strains can accumulate to relatively high values just below the surface and at a short distance away from the weld area.
在管道接头外表面焊缝中心处的轴向残余应力为压应力，而环向残余应力为拉应力。
On the outer surface of the pipe, the axial residual stresses of the weld and in its vicinity are compressive while the hoop stresses keep tensile.
剖口——在一个工件或二个部件之间的表面的一开口或通道，用于熔敷焊缝。
Groove — an opening or channel in the surface of a part or between two components which provides space to contain a weld.
目视检查设备和焊缝的外表面质量。
Visual inspection for the surface quality of equipment and weld seams.
磁记忆法通过对部件表面漏磁场的检测，可以有效检测管座角焊缝中存在的缺陷，减少泄漏现象的发生。
The magnetic memory method, through examining the leakage magnetic field on the surface of the parts, can effectively find out the defects in fillet joints, which can diminish the leakage.
在氦-氩混合气体保护条件下，对AZ31镁合金板材进行了TIG焊接，获得了表面光滑、无堆高和无变形等缺陷的焊缝。
The He-Ar mixed gas TIG welding for AZ31 magnesium alloy plate by was carried out. The surface of observed joint is smooth free from heap high and appearance defects.
对每个试件，裂纹出现在弦管连接表面，沿弦管与节点板的连接焊缝扩展，并导致性能退化及破坏。
For each specimen, cracks appeared on the chord connecting face, and extended along the weld connecting the plate and chord, which led to the performance degradation and failure of the connection.
随着高功率弧，焊缝池必须辅之以支持墙壁或屏障对重力的影响，并塑造所需表面结构。
With higher power arcs, the weld metal pool must be supported by supporting walls or barriers against the effect of gravity and be moulded to the required surface structure.
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