practice weld

The solution was drawn from the weld flux and proofed in the practice.

从焊剂方面提出了解决问题的方法,并在实际生产中验证了其使用效果.

Then using CAE analysis and through adjusting the gate position, weld lines can be optimized to the minimum length, and this result has also been identified by practice.

进而应用CAE软件进行分析，通过调整浇口位置，对熔接痕的长度进行优化，使其减少到最小，结果得到实践验证。

This paper analyzes the cause of producing small concave around weld seam according to practice of welding long rail in Guangzhou Metro Line 2, and presents the preventable measure to overcome.

本文结合广州地铁二号线接触焊焊接长钢轨实践，分析了焊缝热影响区产生轨面小凹痕的原因，提出克服此类缺陷的预防措施，可供类似工程借鉴。