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 thickwalled 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.
出处
《实验力学》
CSCD
北大核心
1997年第4期520-526,共7页
Journal of Experimental Mechanics
关键词
探头法
残余应力
聚乙烯装置
厚壁钢管
holedrilling method, magnetic stress method, residual stresses
