prepared edge (for forms other than square)

Choice of butt groove for welding thin wall headers to pipes;

薄壁集箱和管道对接坡口的选择

A study of the improvement of the butt weld groove of a boiler set box and pipe;

锅炉集箱和管道对接焊坡口的改进研究

Study on Groove Shape and the Open Angle of End Tab of UOE Pipe;

UOE焊管坡口形状与引弧板开口角研究

It is the key to ensure the quality of the weld that adopted reasonable groove type according as the chemical compositions of the approachable side of clad steel plate.

试验结果表明,复合钢板焊接时,可接近的侧面和钢板厚度将决定焊接顺序和焊接材料的选用,而根据可接近侧面材质设计合理的坡口形式,是保证复合钢板焊接质量的关键。

On account of the effect of the rate of dilution on the quality of welded joint of dissimilar steels, the relationship among the rate of dilution, groove type and welding technology was examined and analyzed.

异种钢焊接的稀释率对焊接质量有影响,通过焊缝的稀释率与接头坡口形式、焊接工艺关系试验与分析,采用试验推荐的坡口形式及焊接参数可将焊缝稀释率控制在所要求的范围内。