After what welding materials to use is decided the parameters in the welding process have decisive effects on the shape of the weld metal its chemical composition and microscopic structure .

而在焊接材料确定的情况下，焊接过程中的工艺参数对 焊缝的成形、化学 成分 和 焊缝的微观组织结构等具有决定性的作用。

The results show that there are no obvious boundary between weld metal and base metal the weld composition is uniform and is the same as that of base metal hardness distribution of joint is steady .

结果表明： 惯性 摩擦 焊 焊缝与母材无明显界线，结合良好，焊缝 成份均匀与母材基本相同，接头硬度分布均匀。

Computerized Calculation of Weld Metal Composition in Submerged Arc Welding

埋弧焊 焊缝 化学 成分计算机计算