汽轮机隔板锻件2Cr11Mo1VNbN钢热处理工艺  

Heat Treatment Process of 2Cr11Mo1VNbN Steel for the Forging Diaphragm Plate of Steam Turbine

作　　者：刘双明[1] 杨勇 刘仁君[1] 

机构地区：[1]东方电气东方汽轮机有限公司,四川德阳618000 [2]贵州安大航空锻造有限责任公司,贵州安顺561005

出　　处：《东方电气评论》2012年第2期18-21,共4页Dongfang Electric Review

摘　　要：对超临界、超超临界汽轮机隔板锻件2Cr11Mo1VNbN钢工艺流程进行了介绍,详细阐述了毛坯制造过程中的热处理工艺参数的选择及质量控制要点。生产结果表明,采用1070℃奥氏体化、采用普通淬火油冷却,655℃+625℃两次回火,2Cr11Mo1VNbN钢能够获得良好的常温力学性能和高温短时持久性能。This paper introduces the procedure of the forging diaphragm plate used in supercritieal and ultra supercritical steam turbine and detailed the heat treatment parameters selection and quality control in the manufacturing process. Production results, austenized at 1070 ℃ and quenched in ordinary quenching oil, then tempered twice at 655℃ ＋ 625℃ differently, a preferable mechanical properties at room temperature and high temperature short time lasting performance of 2Crl 1 Mot VNbN steel can be obtained.

关 键 词：2Cr11Mo1VNbN钢 隔板锻件 工艺流程 热处理参数 力学性能 

分 类 号：TG161[金属学及工艺—热处理]