【摘要】 研究了新型稀土双相不锈钢SG52模拟TDI(甲苯二异氰酸脂)生产设备构造的焊接工艺、焊接材料的选择及其焊接性能。研究结果表明,当母材的α铁素体含量控制在40%～60%范围内,其焊接性能、力学性能和耐蚀性能优良,适于制造TDI冷凝器、再沸器和光化反应塔等化工设备。更多还原

【Abstract】 The welding process of new rare earth duplex stainless steel SG52 for simulating TDI weld assemblies,the choice of welding consumables and its weldability have been researched.The results show that its weldability,mechanical properties and resistance to corrosion are good when the α ferrite contents of the base metal SG52 are at the range 40%-60%.SG52 will be used in manufacturing TDI equipment,such as condenser,steam boiler and light-chemical reaction tower.更多还原