摘要
为分析城镇埋地燃气钢质管道阴极保护过保护危害,准备与钢质管道相同材质、同批号的试件,设计试验方案进行试验。试验结果表明管道在阴极保护电位处于-1.40--1.44 V的过保护电位时,抗拉强度在持续下降,伸长率升高。
In order to analyze the hazard of cathodic protection overprotection of urban buried gas steel pipeline,the test pieces with the same material and batch number as steel pipeline are prepared,and the test scheme is designed for test.The test results show that when the cathodic protection potential of the pipeline is at the overprotection potential of-1.40 to-1.44 V,the tensile strength decreases continuously,and the elongation rate increases.
出处
《煤气与热力》
2021年第12期40-42,共3页
Gas & Heat
关键词
埋地燃气钢质管道
阴极保护
过保护危害
试验分析
试件
buried gas steel pipeline
cathodic protection
overprotect harm
test analysis
test piece
