Galvanized steel strip

※   Galvanized steel strip is ordinary steel strip pickling, galvanized, packaging and other processes of processing, because of its good anti-corrosion properties, it is widely used. Mainly used for the production of cold processing, and no longer galvanized metal supplies. For example: light steel keel, guardrail peach-shaped column, sink, rolling shutter door, bridge and other metal products.

※   The whole roll of strip steel for pickling rust, decontamination, to achieve a bright and clean surface; After pickling, it is cleaned by ammonium chloride or zinc chloride aqueous solution or mixed aqueous solution of ammonium chloride and zinc chloride, and then sent to the hot dip plating tank for hot galvanizing; The galvanized steel plate is put into storage, and the galvanized layer can be according to customer needs, generally not less than 500g/ square meter, of which any sample shall not be less than 480g/ square meter.

※   The methods to prevent white rust are: (1) When zinc plates are stacked, there should be no condensate on the surface; (2) Air circulation should be maintained in the warehouse, and the relative humidity of the air should not be in the range of 60% or 85~95%; (3) Zinc plate stacking should not be harmful gases and excessive dust; ④ The surface of the galvanized layer is oiled and passivated.