Patent ID: 7763117

Claim:
A method for the manufacture of extended steel products, wherein an extended steel product surface is contaminated by oils and by at least one of organic and inorganic particles that are suspended or dissolved in the oils, said method comprising the steps of: following the shaping of the extended steel product by working, but before a subsequent treatment of the steel product, fueling burners with a fuel and an oxidant that contains at least 80% oxygen by weight to provide an excess of oxygen that is in excess of that required to combust the fuel: emitting from the burners exhaust gases that include both combustion products and gas components that have not been combusted, to interact directly with the surface of the steel product: directing the exhaust gases at the surface of the steel product at a velocity that is at least 25 meters/sec to blow away organic and/or inorganic particles from the surface of the steel product: and vaporizing surface oils that are present on the surface of the product with heat from combustion of the fuel and oxidant, and combusting the vaporized surface oils with the excess oxygen.