全熔透焊缝不存在包角的问题。
With a full pen weld, the question of "return" doesn't come up.
熔透之后穿孔的速度远远大于熔透之前的。
The perforating speed after fully penetrating is far higher than that of before fully penetrating.
接管和人孔的焊缝应为穿过容器壁的全熔透。
All welds for nozzles and manways shall be full penetration through the vessel wall.
在焊接处看到了夹渣，气孔及未熔透区的油漆。
Slag, blowholes, and paint on unfused regions were observed at the welded junctions.
电弧稳定，飞溅较少和熔透深，可确保焊接质量良好。
Stable arc, less spatter and deep penetration can ensure welding quality well.
研究表明裂纹是从纵向加劲助未熔透的对接焊缝中起始…
This indicated that the fracture had initiated at the unfused butt weld in the longitudinal stiffener.
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.
通过控制接近熔点温度的等温线宽度最终实现了对焊缝背面熔宽和熔透的控制。
Control of the penetration and width of the back side weld was then achieved by controlling the width of an isothermal line near the melting point.
针对低碳钢t IG焊电涡流传感熔透控制，设计了一套计算机控制的研究装置。
A computer control system for research is designed in this paper considering the weld penetration control on mild steel in TIG welding with electro eddy sensor.
在小电流薄板脉冲TIG焊接全熔透的试验条件下进行了试验，并获得了所需数据。
Experiments were conducted under the conditions of TIG welding with small current and thin plates. The desired dada was extracted.
该系统不仅可以进行脉冲等离子弧焊接，而且可以实现脉冲等离子弧焊接的熔透控制。
The system can not only be used in pulse plasma arc welding, but also can be used in penetration controlling in plasma arc welding.
不论熔透控制还是焊缝跟踪，都需要实时或离线提取焊接熔池正面或反面的几何参数。
It is necessary to extract molten pool geometrical parameters in real time or to extract back bead width off-line either in seam tracking or in penetration control.
试验过程电弧燃烧稳定，焊接接头充分熔透，母材与焊缝连接良好，未见气孔、裂纹等缺陷。
The tests show: there are steady arc burning, fully fused weld joints, good connection between base metal and weld joint, no air bubble, cracks etc.
本课题在分析常规弧焊技术特点的基础上，选取熔透式低频直流等离子弧焊电源作为成形的热源。
In basis of analyzing the features of the conventional arc welding technology, a DC low-frequency plasma welding power with fusion penetration is selected as the heat source for metal forming.
目前，国内大跨径悬索桥钢箱梁大多为全焊结构，具有结构复杂、熔透焊缝多，制造难度大等特点。
The domestic steel box beam for long-span suspension bridge is mostly welded structure at present, which features complex structure, a great deal of penetration welds, difficult manufacture.
根据流体力学理论和变分法原理，推导出了熔透情况下TIG焊接熔池上表面和下表面变形的方程。
The calculating formulas of top and bottom pool-surface deformation in TIG full-penetration weld pool is developed based on principles of fluid mechanics and variation calculus.
本课题研究了建筑钢结构熔透对接焊缝中缺陷当量的分析方法和非裂纹类缺陷对焊缝正常使用的影响。
The research focuses on the defect equivalent analytical methods in building steel structure butt weld fusion and the effects of non-crack-type defects on the normal use of butt weld fusion.
该方法利用视觉传感来对焊缝背面焊接温度场热图像进行实时检测及处理，从而达到控制焊缝熔透的目的。
The method adopts visual sensor monitoring and captures images of field of welding temperature of back of weld.
应力腐蚀裂纹是造成加热器泄漏的直接原因，结晶裂纹、焊缝熔深小及坡口底部未熔透也是加热器泄漏的原因。
Heater leak occurs by direct reason of the stress corrosion cracking, while by other reasons of solidification cracking, small fusion depth of welding joint and non...
利用建立的三维tIG焊接熔池瞬时行为数值分析模型，对移动热源作用下不锈钢薄板全熔透时熔池动态行为进行了数值分析。
A 3-d transient numerical model for TIG welding stainless steel has been developed to simulate full-penetrated weld pool dynamic behavior.
对脉冲TIG焊未熔透型熔池在脉冲峰-基转换期间熔池三维形态变化行为进行了定性的分析，并从力和能量角度建立了未熔透熔池液面形态的数学模型。
The qualitative analysis is carried out on the behavior of the partial penetrated weld pool with welding current changing from pulsed peak value to base value during pulsed TIG welding.
采用与模拟一致的工艺参数对铝合金板材分别进行点焊实验，制取接头低倍金相照片，并测量熔核直径和焊透率。
Do spot welding experiments to aluminum alloy plate in the same condition of simulation, prepare low magnification metallographic photos of joint, and measure nugget diameter and penetration rate.
通过制备驻极体纤维和驻极体熔喷非织造布，并对成品进行电镜分析，并进行力学性能、透气、透湿、 过滤性等方面测试。
The electret fiber and the electret nonwoven are manufactured in this experiment, and their properties are analyzed by SEM, DSC and or so.
通过制备驻极体纤维和驻极体熔喷非织造布，并对成品进行电镜分析，并进行力学性能、透气、透湿、 过滤性等方面测试。
The electret fiber and the electret nonwoven are manufactured in this experiment, and their properties are analyzed by SEM, DSC and or so.
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