摘要
广西石化200万t/a柴油加氢改质装置中,部分高压换热器设备的开孔端部堆焊有8 mm厚的Inconel625材料,工程要求在该开孔处接管,接管的材质为TP347,为此需制订合适的焊接工艺。文章首先对Inconel625与TP347异种钢的焊接性进行了分析,而后介绍了焊接工艺措施及有关参数,经过严格的焊接工艺评定试验和现场的控制,最终圆满地完成了该项焊接任务。
In the 200×104t/a diesel oil hydrogenation facility in Guangxi Petrochemical Co.,there are 8 mm thick Inconel625 layers formed by surfacing welding around the holes of some high pressure heat exchanger,where TP347 steel pipes are needed to connected. Therefore,the weldability between the dissimilar steels of Inconel625 and TP347 is analyzed,then proper welding process is formulated,and strict welding process assessment tests and field quality control are carried out. Finally,the welding task is fulfilled satisfactorily.
出处
《石油工程建设》
2014年第6期37-40,共4页
Petroleum Engineering Construction
