【摘要】 高频对焊代替高频搭焊是提高中直径螺旋焊管质量的可靠途径。介绍了实现高频对焊生产的关键技术及措施 ,并进行了实验室及工业试验 ,成功地生产了2 1 9mm× 7mm对接焊管。结果表明 ,螺旋焊管的高频对焊完全能用于工业生产。更多还原

【Abstract】 A reliable way to improve the quality of spiral pipe was the substitution of high frequency butt welding for HF lap welding.The key techniques and measurement for HF butt welding were introduced.The butt welded spiral pipe of  219mm×7mm was successfully produced after laboratory and industrial tests.The results showed that the application of HF butt welding to spiral pipe production was suitable to industrial production更多还原