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。
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。
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.
降低浸镀锌液的换热系数，采用小角度快速浸入可以降低焊缝区域温差。
Which established foundation for the breakthrough and mechanism research on the activity coefficient of the new type of welding gas in the world .
为全世界的新型焊割气在活度值上的突破及机理研究奠定了基础。
The results showed that: the welding current and surface tension temperature coefficient has a critical influence on the internal flow of weld pool and determines the shape of TIG welding pool.
结果表明，焊接电流和表面张力温度系数对熔池内部流动有着至关重要的影响，决定了TIG熔池的截面形貌。
The results showed that: the welding current and surface tension temperature coefficient has a critical influence on the internal flow of weld pool and determines the shape of TIG welding pool.
结果表明，焊接电流和表面张力温度系数对熔池内部流动有着至关重要的影响，决定了TIG熔池的截面形貌。
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