X80感应加热弯管回火工艺研究

摘要

回火工艺是X80感应加热弯管制造工艺中的重要组成部分,对提高弯管强韧性、消除应力、降低硬度、改善弯管综合力学性能有重要的影响.采用热模拟技术、力学性能检测技术、金相分析技术研究了回火工艺对X80感应加热弯管组织性能的影响规律.对不同回火工艺下的X80管线钢组织和性能进行了分析比较,确定了感应加热弯管回火热处理的最佳工艺参数.%The tempering process is an important part in X80 bend manufacturing process, it is with important effect on increasing the strength and toughness of bends, relieves the stress, reducing the hardness and improving the comprehensive mechanical properties. Adopting some technologies, such as thermal simulation, mechanical properties test and metallographic analysis, to study effluence rule of tempering process on X80 induction heating bend structure property. It analyzed and compared the structure and property of X80 pipeline steel under different tempering process; thereby it determined the optimum tempering parameters range for induction heating bend.