METHOD FOR CONTINUOUS ZINC PLATING OF STEEL STRIP Russian patent published in 2004 - IPC

FIELD: metallurgy, in particular, continuous zinc plating of steel strip by dipping into molten metal.

SUBSTANCE: method involves passage of endless steel strip through zinc melt bath, with feeding of steel strip into zinc melt and withdrawal thereof from zinc melt being provided at predetermined angles and bending of strip in vertical plane being performed so that flexible portion is faced upward with respect to melt surface of side portions of strip in width at side of feeding said strip into melt and withdrawal thereof from melt; providing resilient flexure along arc of circle having length not in the excess of half the width of strip of radius equal to at least 165-170 the thickness of strip. It is advisable that flexure of side portions of strip at side of withdrawal of strip be performed twice and it is advisable that flexure of side portions of strip at side of feeding of strip into melt be performed at flexure angle of 40-50 deg, and at side of withdrawal of strip from melt at an angle of 60-80 deg.

EFFECT: improved quality of zinc coating, reduced labor intensity and increased efficiency.

3 cl, 1 dwg, 1 ex