Inside welding seam cracking of spiral submerged Arc welded pipe is the unsolved problem for many years in the pipe field.
螺旋埋弧焊钢管内焊缝裂纹是本行业多年未解决的问题。
After visual inspection and metallographic test, analysis and discuss the welding zone cracking reasons for 6061 and A7003 aluminum alloy thin-walled tube after TIG (argon shielded arc) welding.
通过宏观及微观检测，分析了6061铝合金管及A7003铝合金薄壁管经TIG(氩弧)焊后的焊接区开裂的原因。
The most reason of cracking breakout is badness of arc and high temperature of molten steel and high withdrawal speed.
对弧不良、钢水温度高、拉速快是造成裂纹漏钢的主要原因；
Analyzes the causes of cracking that arised in a type of die under machining of die space with wire arc cutting. Suggests preventative methods of cracking.
分析了一种冷冲模在用线切割方法加工型腔时发生开裂的原因，提出了防止开裂的措施。
Analyzes the causes of cracking that arised in a type of die under machining of die space with wire arc cutting. Suggests preventative methods of cracking.
分析了一种冷冲模在用线切割方法加工型腔时发生开裂的原因，提出了防止开裂的措施。
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