输电铁塔钢制件热浸镀厚锌工艺正交优化  

Orthogonal optimization of high thickness hot-dip zinc coating on steel parts for transmission tower

作　　者：王邦林 廖兴利 柯拥军 陈钦烨 李武俊 马尚城 卢承宏 颜财敏 邵凯湖 白炳城 谷长栋[2] WANG Banglin;LIAO Xingli;KE Yongjun;CHEN Qinye;LI Wujun;MA Shangcheng;LU Chenghong;YAN Caimin;SHAO Kaihu;BAI Bingcheng;GU Changdong(Wenzhou Taichang Pylon Manufacturing Co.,Ltd.,Wenzhou 325013,China;School of Materials Science and Engineering,Zhejiang University,Hangzhou 310058,China)

机构地区：[1]温州泰昌铁塔制造有限公司,浙江温州325013 [2]浙江大学材料科学与工程学院,浙江杭州310058

出　　处：《电镀与涂饰》2022年第24期1754-1758,共5页Electroplating & Finishing

基　　金：温州市重大科技计划项目(ZG2020020)。

摘　　要：以镀锌层的厚度和最高显微硬度为指标,通过正交试验对Q345钢的热浸镀锌工艺进行优化。镀前在80°C烘干3 min,在440°C下镀锌4 min,可以获得厚度达到138.2μm的镀锌层,其最高显微硬度为263 HV,耐腐蚀性能良好。The process paramters for hot-dip zinc coating on Q345 steel substrate was optimized by orthogonal test using the thickness and highest microhardness of zinc coating as indexes.The optimal process conditions were as follows:baking at temperature of 80°C for 3 min before hot-dip coating,and hot-dip coating at 440°C for 4 min.The hot-dip zinc coating obtained by baking the substrate at 80°C for 3 min previously and hot-dip coating with zinc at 440°C for 4 min featured a thickness up to 138.2μm,the highest microhardness of 263 HV,and good corrosion resistance.

关 键 词：钢制件 热浸镀锌 显微硬度 显微组织 正交试验 

分 类 号：TQ153.15[化学工程—电化学工业]