摘要
结合工厂多年超超临界汽轮机铸件生产及620℃等级CB2铸件材料前期试制经验,研究了CB2阀壳铸件的铸造、熔炼、浇注、清理及热处理等工艺方法及控制措施,成功试制了阀壳铸件,其各项检测结果均合格且顺利通过了客户鉴定。这为620℃超超临界汽轮机CB2铸件批量生产提供了重要的技术指导与参考。
Based on years of experience in the production of ultra-supercritical steam turbine castings and preliminary trial production of 620℃ CB2 steel casting material, the process method and control measures of casting,smelting, pouring, cleaning and heat treatment were investigated for CB2 valves, and the castings were successfully trial-produced. Test results for the valve casings show that chemical composition and mechanical properties at room and elevated temperatures all meet the requirements of technical specifications of steel CB2, which will provide the important technical guidance and reference for the mass production of CB2 steel castings for 620℃ ultra-supercritical steam turbine.
作者
李伟华
陈成
张云博
LI Wei-hua;CHEN Cheng;ZHANG Yun-bo(Guangzhou STS Industrial Robot Co., Ltd., Guangzhou 511356, Guangdong, China;Patent Examination Cooperation Center of the Patent Office, SIPO, Guangdong, Guangzhou 510530, Guangdong, China;Shanghai Heavy Machinery Plant Co., Ltd., Shanghai 200245, China)
出处
《铸造》
CAS
北大核心
2019年第3期264-268,共5页
Foundry
关键词
超超临界汽轮机
CB2铸钢
阀壳
ultra-supercritical steam turbine
CB2 steel
valve casing
