基于整体设计的汽轮机高压外缸铸造工艺  

The Casting Process Development of Turbine High Pressure Outer Cylinder Based on Overall Design

作　　者：李永新 郭小强 鲁云 

机构地区：[1]共享铸钢有限公司,宁夏银川750021

出　　处：《中国铸造装备与技术》2015年第6期14-16,共3页China Foundry Machinery & Technology

摘　　要：介绍了一种基于整体设计的汽轮机高压外缸的铸造工艺,根据铸件复杂的结构特点和严格的质量要求,确定铸件垂直方向钢液长距离补缩、内腔蜗壳容易粘砂和夹渣,以及猫爪处热节较大等铸造难点,采取了针对性的工艺措施,并利用计算机模拟技术进行分析优化,经过生产验证,铸件质量良好,铸造工艺可行。This paper describes the casting process development of turbine high pressure outer cylinder which based on overall design,according to complex structural characteristics and strict quality requirements of the casting, identified casting molten steel vertical distances feeding,easy to sand fusion and slag in worm frame of cavity, the large hot spot of casing lug,and other casting difficulties, the process has taken targeted measures, and use computer simulation technology to analysis and optimize. Production-proven, the casting showed good quality, it means the casting process was successful.

关 键 词：高压外缸 蜗壳 粘砂 铸造工艺 计算机模拟 

分 类 号：TK266[动力工程及工程热物理—动力机械及工程] TG24[金属学及工艺—铸造]