Hot Dip Galavnizing (Hot Dip Galavnizing)wasinventedin the mid-18th century,andit was developed from the hot dip galvaniz-ingprocess.After  50  years   of  development,continuous  hot dip galvanizing  processof  steelstrip has become amature and advanced industrial technology,so far,hot dip galvanizing is stil the most common and most effective process measures in steel corrosion prevention methods.In the construction industry,it is used in various industrial and civil buildings of light steel keel,building layer  board,corugated  board,rlling  shutter  door,etc.In  the   feld  of  home   appliances  and  light  industry,it  is  used  for  the   shell  and  base plate of various household appliances;Galvanized steel is widely used in light industry,home appliances,automobiles and construc-  tion    industries     Inthe     automotive industry,tis usedforautomobilebody,shelliner plate,bottom plate,etc.Chinavigorouslydevelop electic power, transportation, communications, energy and urban infrastructure,with the strong development of construction,home apliances, automotive industry,China's galvanizing industry is facing unprecedented opportunities and a huge market. In the past 20 years,the continuous hot dip galvanizing technology,equipmentand corresponding control means of steel strip have been greatly developed,so that galvanized sheet can meet the    harsh requirements of automotive panels and household appliances,and thus it is cheaper than the electric galvanized alloy steel strip,excellent corosion resistance and the potential to replace Learn from foreign advanced high-performance automotive hot-dip galvanized production technology and equipment development technology and  experience, through technological innovation, optimization design, precision manufacturing and foreign technical cooperation,breakthrough the bottleneck restricting the development of high-performance automotive hot-dip galvanizedsteel  plate production technology and equipment.