Method for controlling zinc dross on surfaces of galvanized household appliance and automobile plates

The invention relates to a control method for zinc dross on the surfaces of galvanized household appliance and automobile plates, and belongs to the technical field of cold rolling continuous hot galvanizing. The control method comprises control before production and control in production. The control before production comprises treatment of a sink roll, a stabilizing roll and a correction roll; processing the zinc liquid; and processing the raw material substrate. The control in the production comprises the steps of controlling a cleaning process, controlling the atmosphere in a furnace nose and controlling a zinc pot section process. According to the method, all key procedures and links such as overhauling, raw material cleaning, zinc pot cleaning and the like which influence zinc dross generation are started, the zinc dross defects of household appliances and automobile sheets are fundamentally controlled, and the surface quality and the product percent of pass of galvanized sheets are well improved. 本发明涉及