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φ219mm×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.
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