石化装置用工业纯钛的焊接

Welding of pure titanium on petrifaction device

工业纯钛是一种极为优良的耐腐蚀材料,在石油化工设备上得到广泛应用,由于钛的活泼性和对加热敏感性,因此钛设备的制造,焊接是关键工艺,特别是大型衬钛设备的制造,焊接工作量很大,如何保证质量是生产钛设备的主要问题。本文结合衬钛设备的结构,主要对工业纯钛手工钨极氩弧焊的保护效果,焊接规范参数的选择进行了试验分析,初步掌握了工业纯钛的焊接工艺,并对焊缝的气孔、焊缝金相组织和焊缝污染程度对质量的影响进行了讨论。

Pure titanium is a kind of excellent corrosion resisence material,it is widely used on petrifaction device,because of its vivacity and sensibility to heat,welding is becoming the key process on manufacturing titanium device,especially for great titanium lining device.The article combines the structure of pure titanium lining device,the effect of shielding on pure titanium using TIG welding technique and the choice of welding procedure parameters is analyzed ,factors influencing the quality are also discussed.