Hot cracks commonly occurred in inside weld as the forming process of SSAW pipe.
螺旋埋弧焊管在成型过程中容易产生内焊热裂纹。
The influence of Lanthanum, Cerium, Yttrium, Praseodymium and Neodymium on weld hot cracking susceptibility of the pure nickel electrode used for cold welding of cast iron was studied.
研究了纯镍铸铁焊条冷焊时，稀土金属镧、铈、镨、钇及钕对焊缝热裂纹敏感性的影响规律，并分析了铈对焊接接头力学性能和加工性能的影响。
In this paper, the creep compliance of Hot-plate welded joint of PE80 pipe is measured, and the effect of creep on the crack tip stress field in the weld is investigated.
本文测定了燃气用PE80管材热板焊接接头的蠕变柔量，研究了蠕变对焊缝裂尖应力场的影响。
Weld with trailing impactive rolling (WTIR) is a new technique to reduce the residual stress and distortion and prevent hot cracking of thin-walled structure.
随焊冲击碾压是一种控制薄壁结构焊接应力变形、防止热裂纹的新方法。
The front impact roller causes transverse plastic compression strain in the weld which is in the brittle temperature range, which counteracts the tensile strain which leads to hot cracking.
前轮对处于脆性温度区间的焊缝金属施加一个横向挤压塑性应变，减小甚至抵消致裂的拉伸应变，防止了焊接热裂纹的产生。
By strictly clearing up weld zone, improving welding material's purity, strengthening molten pool's shield and controlling energy input etc measures, weld zone's hot crack and blowhole were prevented.
采取严格清理焊接区、高焊材纯净度、强熔池保护及控制线能量等措施消除了蒙乃尔合金焊接中的气孔和热裂纹，保证了产品焊接质量。
Because of the complexity of welding process, the research of weld process produce hot and stress through method of experiment is very difficulty.
因为焊接过程的复杂性，所以很难通过实验的方法对焊接过程产热和应力分布进行研究。
The PIC tube is made of long, internally deburred electrical weld tube or seamless steel tube by means of induction heating, stretch reducing and hot coiling.
管采用长的去除内毛刺的电焊管或无缝管作为坯管，经感应加热后进行张力减径，然后热卷曲成卷。
Once joined, and while still hot, the parts may be pulled apart slightly to reduce the wall thicknesses at the weld joint.
一旦焊接并且部件还是热的时候，可将部件稍微拉开以减少焊接接头处的壁厚。
The improvement of microstructure leads to a considerable reduction of the susceptibility of hot cracking of weld metal as indicated by the transverse-varestraint test.
增加焊缝中的共晶数量并改善其分布形态，从而有助于降低焊缝金属的热裂纹敏感性。
Neodymium can increase weld metal hot cracking susceptibility of the pure nickel electrode used for cold welding of cast iron.
纯镍铸铁焊条中加入稀土钕会增加焊缝热裂敏感性。
Through the pipe sample cutting and analyzing the crack in the fillet weld between the hot reheat pipe and the warming pipe, it was found out that the cause of the crack is due to the thermal fatigue.
通过对再热热段至低旁暖管管道角焊缝上裂纹的解剖分析，其原因是热疲劳裂纹引起的。
This series of product is applicable for general structure steel and engineering used hot-rolled plates and steel strips to weld. rivet and bolt structures.
本系列产品适用于一般结构钢和工程用热轧钢板、钢带、可供焊接、铆接、栓结构件用。
This series of product is applicable for general structure steel and engineering used hot-rolled plates and steel strips to weld. rivet and bolt structures.
本系列产品适用于一般结构钢和工程用热轧钢板、钢带、可供焊接、铆接、栓结构件用。
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