高温高压阀门铸件金相球化分析与应用  

Analysis and Application of Metallographic Spheroidization of High Temperature and High Pressure Valve Castings

作　　者：陈立龙[1] 陈卫平[1] 尤建立[1] 张明[1] 钱忠伟 王燕豪 徐顺富 金圣杰 CHEN Li-long;CHEN Wei-ping;YOU Jian-li;ZHANG Ming;QIAN Zhong-wei;WANG Yan-hao;XU Shun-fu;JIN Sheng-jie(Hangzhou Worldwides Valve Co.,Ltd.,Hangzhou 311122,Zhejiang,China;Zhejiang Worldwides Valve Co.,Ltd.,Huzhou 313200,Zhejiang,China)

机构地区：[1]杭州华惠阀门有限公司,浙江杭州311122 [2]浙江杭惠阀门有限公司,浙江湖州313200

出　　处：《阀门》2021年第3期172-174,共3页VALVE MAGAZINE

基　　金：浙江省重点研发计划项目(2019C01025)。

摘　　要：介绍了高温高压电站阀门作为压力管道元件在电厂生产中的工作特性和控制要求。针对某电厂主蒸汽闸阀在运行中,阀体出现裂纹、硬度低及金相球化超标的现象,通过以主蒸汽闸阀(DN225、P54100V)为例,分析了阀体硬度低和金相球化超标的原因,并给出了改进方法和解决方案。As for pressure pipeline device,the high pressure and high temperature power plant valves are the necessary control parts in the operation of power plant.There is main steam gate valve in one power plant,after one year operation,the valve appeared cracks,low hardness and excessive metallographic spheroidization.This paper take main steam gate valve(DN225,P54100V)as an example,analysis the possible reason of low hardness and excessive metallographic spheroidization of the valve body,and give the improvement methods and solutions.

关 键 词：主蒸汽闸阀 硬度 金相球化 故障分析 

分 类 号：TH134[机械工程—机械制造及自动化]