Electrolytic treatment of metal surfaces

Claim 1

THE PROCESS OF REDUCING RUST ON AND IMPARTING TO A CONTINUOUSLY MOVING STRIP OF FERROUS METAL A DURABLE RUST RESISTANT COATING RESISTANT FOR 18 HOURS TO CORROSION BY AN AQUEOUS SOLUTION CONTANING 3% SODIUM CHLORIDE AND 0.3% HYDROGEN PEROXIDE AT A TEMPERATURE OF 75* C. WHICH CONSISTS ESSENTIALLY OF CONTINUOUSLY ACTIVATING THE SURFACES OF SAIS STRIP IN A DILUTE AQUEOUS BATH OF SULFURIC ACID FOR A FEW SECONDS, IMMEDIATELY RINSING THE METAL SURFACES WITH WATER, IMMEDIATELY THEREAFTER IMMERSING THE MOVING FERROUS METAL SURFACES IN AN ELECTROLYTIC BATH AS A CATHODE, SAID BATH CONSISTING ESSENTIALLY OF WATER AND 100 TO 500 GMS. CRO3 PER LITER AND HAVING A TEMPERATURE OF BETWEEN 45 AND 60* C., SUBJECTING THE METAL SURFACES TO A CURRENT DENSITY BETWEEN 200 AND 800 AMP. PER SQ. FT. FOR 1 TO 5 SECONDS, THEN IMMEDIATELY RINSING THE COATED METAL SURFACES IN WATER FOR A FEW SECONDS AND DRYING THE COATED FERROUS METAL.