工艺参数对钢结构喷涂层耐蚀性的影响  

Effect of Process Parameters on Corrosion Resistance of Steel Structure Coating

作　　者：徐士祺[1,2] 

机构地区：[1]西南石油大学石油工程学院,四川成都610500 [2]西安石油大学石油工程学院,陕西西安710065

出　　处：《热加工工艺》2013年第24期155-157,共3页Hot Working Technology

基　　金：西安石油大学青年科技创新基金资助项目(YS28032501)

摘　　要：采用不同的喷涂距离和O2/C2H2比值,对Q345B钢结构进行爆炸喷涂试验,并进行240h中性盐雾腐蚀试验和碱液电化学腐蚀试验。试验结果表明喷涂距离为120～210mm,O2/C2H2比值为0.8～1.2,Q345B钢结构爆炸喷涂层的质量损失率先减小后增大,腐蚀电位先正移后负移,Q345B钢结构喷涂层的耐蚀性先提高后减小。The explosion spraying tests of Q345 steel using different spraying distances and the ratio of O2and C2H2were carried out,and electrochemical corrosion tests and 240 h neutral salt spraying corrosion tests were carried out,too.The experimental results show that when the spray distance is in the range of 120 mm to 210 mm and the ratio of O2/C2H2Q345B is in the range of 0.8 to 1.2,the mass loss of Q345B steel structure explosion spray coating first decreases and then increases;the corrosion potential first decreases and then increases;the corrosion resistance of Q345B steel structure sprayed layer first increases and then decreases.

关 键 词：钢结构 工艺参数 耐蚀性 喷涂距离 O2 C2H2比值 

分 类 号：TG174[金属学及工艺—金属表面处理]