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本文详细介绍了双层卷焊管的生产工艺,对主要生产工序——带钢的镀铜、带钢的边缘处理、带钢的成型和双层卷焊管的焊接进行了系统研究。结果表明,所采用的设备和工艺参数是基本成功的;所建立的成型理论可以保证成型方法的高效率;成品管的性能完全符合标准规定。从而为我国在直缝焊管机组上自行设计、生产双层卷焊管提供了新的工艺。
This paper introduces the production process of double-layer roll-welded pipe in detail, and systematically researches the main production processes - the copper plating of strip, the edge treatment of strip, the forming of strip and the welding of double roll pipe. The results show that the equipment and process parameters used are basically successful. The forming theory established can ensure the high efficiency of the forming method. The performance of the finished pipe completely meets the standard requirements. Thus for our country in the longitudinal welded pipe unit on their own design, production of double-rolled pipe provides a new process.