METHOD OF APPLICATION OF THE SEPARATING GAS AT CONTINUOUS DEPOSITION OF THE COATING BY DIPPING IN THE MELT Russian patent published in 2008 - IPC C23C2/02 C23C2/00 

FIELD: metallurgy industry; other industries; methods for prevention of evaporation of zinc at the steel strip hot coating by zinc or zinc alloys.

SUBSTANCE: invention is pertaining to the method used for prevention of evaporation of zinc at the steel strip hot coating by zinc or zinc alloys. The method provides for transit of the steel strip (3) through the immersed in the bath molten metal (2) hose (1) of the furnace, the change of direction of motion of the steel strip (3) in the bath of the molten metal (2) by means of the guide roller (7) and the exit of the steel strip (3) out of the bath molten metal (2) upward. At that in the hose (1) furnace above the bath of molten metal there is the dividing gas (4) in the form of gas mixture, in the capacity of which use argon with additives of butane and-or propane. The invention prevents formation of the sublimate and ensures formation of the faultless coating irrespective of the amount of the delivered gas.

EFFECT: invention ensures formation of the faultless coating irrespective of the amount of the delivered separating gas and prevents formation of the sublimate.

3 cl, 1 dwg