Using R317 thermal welding electrode law toughness poor joints, using A132 electrode semi-hot welding fusion line near the first organizations to use and performance in high-temperature process is less stable.
采用R317焊条热焊法的接头冲击韧性较差,采用A132焊条半热焊接头熔合线附近的组织与性能在高温使用过程中的稳定性较差。
参考来源 - 汽轮机高压缸体裂纹焊补工艺优化研究Introduce the theory of sequence controlling system. Sequence controlling system can avoid the fusion line or reduce it.
本课题设计的系统基本上可以实现消除熔接痕的要求。
参考来源 - 消除注塑件熔接痕的技术研究·2,447,543篇论文数据，部分数据来源于NoteExpress
WELDED JOINTS: 1. The highest hydrogen concentration is found along the fusion line.
结果表明：在焊接接头中，1。沿熔深方向上，氢分布是不均匀的。
The fatigue crack propagation rate of the fusion line and weld toe are greater than that of the others.
熔合线和焊趾处疲劳裂纹扩展速率较其他部位大。
A crack is found after SR heat treatment in the vertical welding fusion line for water distribution ring pipe of a electric machinery.
某设备制造厂电机配水环管立缝在消除应力热处理后，熔合线附近出现裂纹。
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