Application of thermal spray and surface treatment techniques in hot-dip galvanizing line pot hardware

摘要

The failure of zinc pot hardware in continuous hot-dip galvanizing lines( CGLs) is due to zinc corrosion,abrasion,and dross build-up. Enhancing the life of pot hardware will not only upgrade the quality of the sheet products but also will increase the efficiency of CGLs,with decreasing cost and increasing energy savings. This paper introduces the current research and development for thermal spray coatings for pot rolls,sleeves,and bushings,and analyses the thermal spray and surface treatment technique details of dross adhesion prevention. It provides the potential applications and developing trends in thermal spray coatings and surface treatment techniques for pot hardware.