四猫爪大型汽缸垂弧及挠度的控制方法  

Control Methods for Sagging and Deflection of Large Casing with Four Lugs

作　　者：孙忠民[1] 李雅武[1] 

机构地区：[1]哈尔滨汽轮机厂有限责任公司,哈尔滨150046

出　　处：《汽轮机技术》2007年第4期317-318,311,共3页Turbine Technology

摘　　要：分析了大型汽缸在加工过程中控制垂弧及挠度,以减少汽缸在安装、运行时的变形,提高运行品质,提高安全可靠性,分析了产生的原因,给出了控制方法,第一次在大型工件加工的方法中提出按挠性件加工的思想,对大型工件的加工具有普遍的指导意义。Sagging and deflection of large casing are controlled in machining process to reduce deformation of casing during erection and operation, increase the operation quality and improve the safety and reliability. The causes for sagging and deflection are analyzed and the corresponding control methods are proposed. It is the first time to put forward the concept machining large part as flexible part, which plays general instructive roles in machining large parts.

关 键 词：汽缸 垂弧 挠度 变形控制 

分 类 号：TK263.1[动力工程及工程热物理—动力机械及工程]