Method of cladding steel with titanium or zirconium

Claim 1

THE METHOD OF CLADDING STEEL WITH A LAYER OF A CORSION-RESISTANT METAL SELECTED FROM THE GROUP CONSISTING OF TITANIUM AND ZORCONIUM WHICH COMPRISES FORMING A COMPOSITE OF THE STEEL BASE METAL, AN INTERMEDIATE LAYER OF A BONDING METAL SELECTED FROM THE GROUP CONSISTING OF CHROMIUM, COBALT AND MOLYBDENUM, A LAYER OF THE CORROSION-RESISTANT METAL, AND A TEMPORATY COVERING LAYER OF STEEL, SAID TEMPORATY COVERING LAYER BEING SEPARATED FROM THE LAYER OF CORROSION-RESISTANT METAL BY A FILM OF COLLOIDAL GRAPHITE, TRANSFORMING SAID COMPOSITE INTO A GAS-TIGHT CASING BY WELDING STEEL STRIPS TO THE PROXIMATE EDGES OF THE STEEL BASE METAL AND THE TEMPORARY STEEL COVERING LAYER, EVACULATING THE GAS-TIGHT CASING TO REMOVE SUBSTANTIALLY ALL OF THE AIR FROM SAID GAS-TIGH CASING THEREAFTER ADMITTING A DRY INERT GAS TO SAID GAS-TIGH CASING, WHEREBY THE FORMATION OF AN OXIDE FILM ON THE SURFACE OF THE STEEL WITHIN THE CASING DURING THE HEATING STEP WHICH FOLLOWS IS PREVENTED AND THEREBY ESTABLISHING AN INERT ATMOSPHERIC WITHIN SAID GAS-TIGHT CASING FORMED FROM SAID COMPOSITE, HEATING SAID COMPOSITE TO A TEMPERATURE OF AT LEAST 1400*F., COMPRESSING THE LAYERS OF THE COMPOSITE TOGETHER TO EFFECT A REDUCTION IN THICKNESS OF ABOUT ONE-HALF OF THE INITIAL THICKNESS OF THE COMPOSITE CUTTING AWAY THE STEEL COVERING LAYER, AND REMOVING THE METAL AND THE STEEL COVERING LAYER, AND REMOVING THE TEMPORARY STEEL COVERING LAYER FROM THE RESULTING CORROSION-RESISTANT METAL-CLAD STEEL BASE METAL.

Claim 2

THE METHOD OF CLADDING STEEL WITH A LAYER OF A CORSION-RESISTANT METAL SELECTED FROM THE GROUP CONSISTING OF TITANIUM AND ZORCONIUM WHICH COMPRISES FORMING A COMPOSITE OF THE STEEL BASE METAL, AN INTERMEDIATE LAYER OF A BONDING METAL SELECTED FROM THE GROUP CONSISTING OF CHROMIUM, COBALT AND MOLYBDENUM, A LAYER OF THE CORROSION-RESISTANT METAL, AND A TEMPORATY COVERING LAYER OF STEEL, SAID TEMPORATY COVERING LAYER BEING SEPARATED FROM THE LAYER OF CORROSION-RESISTANT METAL BY A FILM OF COLLOIDAL GRAPHITE, TRANSFORMING SAID COMPOSITE INTO A GAS-TIGHT CASING BY WELDING STEEL STRIPS TO THE PROXIMATE EDGES OF THE STEEL BASE METAL AND THE TEMPORARY STEEL COVERING LAYER, EVACULATING THE GAS-TIGHT CASING TO REMOVE SUBSTANTIALLY ALL OF THE AIR FROM SAID GAS-TIGH CASING THEREAFTER ADMITTING A DRY INERT GAS TO SAID GAS-TIGH CASING, WHEREBY THE FORMATION OF AN OXIDE FILM ON THE SURFACE OF THE STEEL WITHIN THE CASING DURING THE HEATING STEP WHICH FOLLOWS IS PREVENTED AND THEREBY ESTABLISHING AN INERT ATMOSPHERIC WITHIN SAID GAS-TIGHT CASING FORMED FROM SAID COMPOSITE, HEATING SAID COMPOSITE TO A TEMPERATURE OF AT LEAST 1400*F., COMPRESSING THE LAYERS OF THE COMPOSITE TOGETHER TO EFFECT A REDUCTION IN THICKNESS OF ABOUT ONE-HALF OF THE INITIAL THICKNESS OF THE COMPOSITE CUTTING AWAY THE STEEL COVERING LAYER, AND REMOVING THE METAL AND THE STEEL COVERING LAYER, AND REMOVING THE TEMPORARY STEEL COVERING LAYER FROM THE RESULTING CORROSION-RESISTANT METAL-CLAD STEEL BASE METAL.