Coating mixture with addition agent and method of coating therewith

Claim 1

METHOD OF MECHANICALLY COATING AN IRON BASE WITH AN ALLOY OF COPPER AND NICKEL; COMPRISING CONTINUOUSLY PASSING SUCCESSIVE PORTIONS OF A STRIP OF SAID BASE THROUGH A SLURRY CONTAINING THE OXIDES OF SAID COPPER AND NICKEL, A SUSPENDING MEDIUM CONSISTING OF METHANOL AND ETHYLENE GLYCOL MONO ETHYL ETHER, ALUMINUM OXIDE CONTAMINANTS, AND LITHIUM PHOSPHATE PRESENT IN SUFFICIENT AMOUNT TO DISSOLVE ALL OF SAID ALUMINUM OXIDE CONTAMINANTS; WHEREBY THE STRIP IS COATED WITH THE MATERIALS OF SAID SLURRY; FEEDING THE COATED STRIP UPWARDLY FROM SAID SLURRY; HEATING SAID COATED STRIP AT A TEMPERATURE OF ABOUT 200* C. TO DRIVE OFF SAID SUSPENDING MEDIUM, AND FURTHER HEATING SAID COATED STRIP AT ABOUT 1350* C. IN A REDUCING ATMOSPHERE TO FIRST CAUSE SAID LITHIUM PHOSPHATE TO TAKE INTO SOLUTION SAID ALUMINUM OXIDE CONTAMINANTS IN SAID SLURRY AND THEN TO REDUCE SAID OXIDES OF COPPER AND NICKEL TO METALLIC FORM AND TO FUSE THE RESULTANT METAL; WHEREBY SAID FURTHER HEATING IS EFFECTIVE TO FUSE SAID METAL AT A LOWER TEMPERATURE THAN THE NORMAL FUSION TEMPERATURE OF SAID METAL WITH SAID ALUMINUM OXIDE IN SOLID FORM, FOR PRESERVING SAID STRIP FROM FUSION AND RUPTURE DURING SAID UPWARD FEED OF SAID STRIP.