COE新型制管工艺应用研究

为了解决小直径直缝埋弧焊管质量不稳定、效率低等生产技术难题,综合考察了UOE、JCOE、HFW焊管制造工艺。在对钢管成型技术、预焊技术和扩径技术进行分析的基础上,开发出COE直缝埋弧焊管制造工艺。应用实践表明:采用COE制管工艺极大地提高了小直径埋弧焊管的生产效率,降低了生产成本,并且焊管管体成型好,产品质量稳定,在小直径埋弧焊管制造方面具有良好的推广前景。

Application Research of New Type COE Pipe Manufacturing Technology

In order to solve the technical difficulties of small diameter submerged arc welded pipe,such as unstable quality, low efficiency etc., the manufacturing process of UOE, JCOE and HFW welded pipe were investigated comprehensively. A new kind of COE longitudinal submerged arc welded pipe manufacturing technology was developed on the basis of analyzing the steel pipe forming technology, prewelding technology and expanding technology. Actual application showed that COE technology greatly enhanced the production efficiency of small diameter submerged arc welded pipe , reduced production cost, and steel pipe forming was good,the product quality was stable, it was with good promotion prospect in the small diameter of submerged arc welding pipe manufacture.