Method for heat treating cube-on-edge silicon steel

Claim 1

A METHOD FOR PRODUCING A POLYCRYSTALLINE SHEETLIKE BODY HAVING A MAJORITY OF THE CONSTITUENT GRAINS ORIENTED IN THE (110) (001) DIRECTION, COMPRISING PREPARING AN ALLOY MELT CONSISTING ESSENTIALLY OF FROM ABOUT 2.5 TO 4.0 WEIGHT PERCENT SILICON, LESS THAN ABOUT 0.010 WEIGHT PERCENT SULFUR, AND NOT MORE THAN ABOUT 0.035 WEIGHT PERCENT CARBON, ADDING UP TO 0.10 WEIGHT PERCENT TITANIUM TO SAID ALLOY MELT FORMING FROM 0.01 TO 0.10 WEIGHT PERCENT TITANIUM CARBIDE DISPERSION THEREIN, CASTING SAID TITANIUM CARBIDE-CONTAINING ALLOY AND HOT REDUCING SAID CASTING TO FORM AN ELONGATED SHEET-LIKE BODY LESS THAN 150 MILS IN THICKNESS, COLD ROLLING SAID BODY TO EFFECT AT LEAST A 40 PERCENT REDUCTION IN THICKNESS, HEAT TREATING SAID COLD-WORKED BODY IN A PROTECTIVE ATMOSPHERE AT A TEMPERATURE FROM 750 TO 1000*C. TO CAUSE THE DESIRED (110) (001) RECRYSTALLIZED TEXTURE TO DEVELOP, AND SUBSEQUENTLY EFFECTING A DECARBURIZING HEAT TREATMENT ON SAID BODY AT A TEMPERATURE NOT LESS THAN ABOUT 1050*C. SO THAT DECOMPOSITION OF THE TITANIUM CARBIDE PHASE IS EFFECTED WITH REMOVAL OF THE CARBON FROM THE METAL BODY.

Claim 2

A METHOD FOR PRODUCING A POLYCRYSTALLINE SHEETLIKE BODY HAVING A MAJORITY OF THE CONSTITUENT GRAINS ORIENTED IN THE (110) (001) DIRECTION, COMPRISING PREPARING AN ALLOY MELT CONSISTING ESSENTIALLY OF FROM ABOUT 2.5 TO 4.0 WEIGHT PERCENT SILICON, LESS THAN ABOUT 0.010 WEIGHT PERCENT SULFUR, AND NOT MORE THAN ABOUT 0.035 WEIGHT PERCENT CARBON, ADDING UP TO 0.10 WEIGHT PERCENT TITANIUM TO SAID ALLOY MELT FORMING FROM 0.01 TO 0.10 WEIGHT PERCENT TITANIUM CARBIDE DISPERSION THEREIN, CASTING SAID TITANIUM CARBIDE-CONTAINING ALLOY AND HOT REDUCING SAID CASTING TO FORM AN ELONGATED SHEET-LIKE BODY LESS THAN 150 MILS IN THICKNESS, COLD ROLLING SAID BODY TO EFFECT AT LEAST A 40 PERCENT REDUCTION IN THICKNESS, HEAT TREATING SAID COLD-WORKED BODY IN A PROTECTIVE ATMOSPHERE AT A TEMPERATURE FROM 750 TO 1000*C. TO CAUSE THE DESIRED (110) (001) RECRYSTALLIZED TEXTURE TO DEVELOP, AND SUBSEQUENTLY EFFECTING A DECARBURIZING HEAT TREATMENT ON SAID BODY AT A TEMPERATURE NOT LESS THAN ABOUT 1050*C. SO THAT DECOMPOSITION OF THE TITANIUM CARBIDE PHASE IS EFFECTED WITH REMOVAL OF THE CARBON FROM THE METAL BODY.