热轧带肋钢筋表面形成凹坑、裂纹缺陷的原因分析

The Analysis of Forming the Concave and Crack on the Surface of Hot Rolled Ribbed Steel Bars

通过综合检验分析,确认热轧带肋钢筋表面凹坑、裂纹缺陷是钢筋长期裸露地承受洪水泥沙侵蚀所致,是化学腐蚀、电化学腐蚀、电化学应力腐蚀的产物。

Through synthetically analysis and inspection, we reach a condition that the long-term corrosion of sand and flood results in the pits and crack on the surface of hot rolled ribbed steel bars, which are also caused by chemical corrosion, electric chemical corrosion and electric chemical stress corrosion.