高压聚乙烯装置用G4345V钢厚壁管冷弯残余应力检测  

Inspection of Residual Stresses Caused by Cold Coldbending for G4345V Steel Thickwalled Pipes

作　　者：谢大吉[1] 冯升波[1] 王增梅[1] 胡德贵[1] 

机构地区：[1]清华大学

出　　处：《实验力学》1997年第4期520-526,共7页Journal of Experimental Mechanics

摘　　要：本文对某厂聚乙烯装置用Ｇ４３４５Ｖ钢厚壁管冷弯残余应力进行了检测．为寻求较适用的降低残余应力的方法，对弯管进行两种处理以后的效果进行了检验，二种处理工艺为热处理（３７０℃）及喷丸．最后在现场对喷丸前后的残余应力用磁各向异性探头进行了检测。The residual stresses caused by coldbending in G4345V steel thickwalled pipes are examined by magnetic probe. The method is effective. The results of two technological procedures (heat treatment at 370℃ and sand blasting) for reducing residual stresses in pipes are compared.

关 键 词：探头法 残余应力 聚乙烯装置 厚壁钢管 

分 类 号：TQ320.5[化学工程—合成树脂塑料工业] TQ325.12