The article discusses problems of safety coefficient caused by open welding of shield beam.
对掩护梁发生开焊而引发的安全系数问题进行了探讨。
2
In the same time, a calculating formula of welding flat cover special for hydraulic test is deduced by setting certain safety coefficient of hydraulic test.
同时通过对试验压力取一定安全系数，推导出液压试验专用焊接平盖的计算公式。
3
The temperature difference of welding zone can be decreased with small dipping angle, high dipping speed and low heat exchange coefficient of dipping Zn liquid.