对于开坡口的对接焊缝宽度,由于钢板厚度、焊缝强度、焊接方法、坡口角度大小等因素不同,因此焊后的焊缝宽度也不相同。特别是焊后的坡口大小完全被焊缝覆盖着,其覆盖宽度能否达到每边2～4mm的标准要求,是无法进行直观焊缝宽度检查的,当时又无国家标准。为此,会引起一些不必要的扯皮,从而影响焊接质量和生产进度。近一年来,笔者承担了国家专业标 The butt weld width for beveling varies with different factors such as the thickness of the steel plate, the strength of the weld, the method of welding and the size of the bevel. Therefore, the weld width after welding is not the same. In particular, the groove width after welding is completely covered by the weld. Whether the width of the groove can meet the standard of 2 to 4 mm on each side can not be checked visually for the width of the weld. At that time, there was no national standard. To this end, it will cause some unnecessary wrangling, thus affecting the quality of welding and production progress. The past year, I assume the national professional standard