STEEL FLAT SECTION AND PROCEDURE FOR PRODUCTION OF STEEL SHEET Russian patent published in 2011 - IPC B05D7/14 

FIELD: metallurgy.

SUBSTANCE: rolled iron has base layer formed of steel and system of protection from corrosion applied on base layer. The system of protection from corrosion consists of metal coating of thickness below 3.5 mcm. Metal coating is formed of the first metal layer applied on the base layer and of the second metal layer applied on the first metal layer. The second metal layer forms an alloy with the first metal layer. The system of protection from corrosion also contains a plasma polymer layer applied on metal coating. The technical result of the invention is high corrosion resistance and perfect adhesion of varnish, good resistance to a bump of stone, and also good weldability by laser welding.

EFFECT: rolled iron used as structure material for car body production or for development and production of domestic technical equipment.

27 cl, 2 dwg