对在拉拔过程中出现断裂的焊接用盘条进行化学成分和金相组织检测。
To examine chemistry composition and microstructure of steel wire rod for welding of fracture during drawing.
通过对焊接接头的力学性能和金相组织分析比较，证明该钢具有良好的焊接适应性。
The tested results show that the steel has good welding adaptability through analyzing the mechanical properties and metallurgical structures of the welded joints.
研究了激光焊接的参数和焊缝的金相组织。
Process parameters and the metallurgy aspect of the weld are studied.
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