Powder cutting and scarfing of resistant metallic bodies

Claim 1

PROCESS FOR THE THERMOCHEMICAL REMOVEL OF METAL OF THE GROUP CONSISTING OF COPPER, NICKEL, BASS, BRONZE AND NICKEL BASE ALLOYS CONTAINING MOLYBDENUM FROM A BODY OF SUCH METAL WHICH COMPRISES CONTINUOUSLY IMPINGING AGAINST THE INITIAL PORTION OF A METAL YIELDING ZONE OF SAID BODY A PREHEATING FLAME; CONCURRENTLY CONTINUOUSLY IMPINGING AGAINST THE INITIAL PORTION OF SAID METAL YIELDING ZONE HEATED BY SAID PREHEAT FLAME A METAL REMOVING OXYGEN JET; CONCURRENTLY CONTINUOUSLY INTRODUCING TO SAID OXYGEN JET A STREAM OF GAS BORNE ADJUVANT POWDER CONSISTING ESSENTIALLY OF IRON AND GRANULAR ALUMINUM POWDERS INTIMATELY MIXED TOGETHER, SAID ALUMINUM CONSISTING OF MORE THAN 10% AND NOT MORE THAN 65% OF SAID MIXTURE BY WEIGHT, THE LOWER PERCENTAGES YIELDING SMOOTHER SURFACES AND THE HIGHER PERCENTAGES YIELDING LOWER POWDER FLOW, SAID POWDER BEING HEATED BY SAID PREHEATING FLAME TO THE OXYGEN KINDLING TEMPERATURE OF ITS CONSTITUENTS, AND SAID HEATED POWDER AND OXYGEN STREAM CONTACTING WITH THE METAL YIELDING SURFACE ALONG THE CONCURRENT EXTENT THEREOF; AND MECHANICALLY PROGRESSING SAID PREHEATING FLAME, HEATED POWDER AND OXYGEN STREAM AND METAL YIELDING ZONE ALONG THE METAL BODY; THE FASTER BURNING ALUMINUM GRANULES INITIATING THE REACTION AT THE BEGINNING OF THE METAL YIELDING ZONE, AND THE SLOWER BURNING IRON POWDER COMBINING ANC CONTINUING THE REACTION TO THE END OF THE METAL YIELDING ZONE, AND THEREBY EXTENDING THE REACTION ALONG THE CONCURRENT EXTENT OF THE HEATED POWDER AND OXYGEN STREAM AND METAL YIELDING ZONE FOR A TOTAL DISTANCE OF AT LEAST TWO INCHES, AND ENABLING THE MECHANICAL PROGRESSION THEREOF TO PROCEED AT A RATE OF FROM 2 TO MORE THAN 4 INCHES PER MINUTE.