Method of producing a metallic length
Abstract
Abstract A METHOD IS PROVIDED FOR PRODUCING A CONTINUOUS SINTERED FERROUS METAL LENGTH HAVING AT LEAST ONE METALLIC CHROMIUM-CONTAINING SURFACE FROM POWDERED METALLIC MATERIALS. UNSUPPORTED FERROUS METAL POWDER IS PASSED THROUGH THE NIP OF A FIRST PAIR OF COMPACTION ROLLERS TO PRODUCE A CONTINUOUS LENGTH OF FERROUS METAL. AT LEAST ONE SURFACE OF THE LENGTH OF FERROUS METAL IS COATED WITH A METALLIC CHROMIUM-CONTAINING POWDER AND THE METALLIC CHROMIUM-CONTAINING POWDER IS COMPACTED THERETO BY PASSING THE COATED LENGTH THROUGH THE NIP OF A SECOND PAIR OF COMPACTION ROLLERS. THEREAFTER THE COATED LENGTH OF FERROUS METAL IS HEAT TREATED TO EFFECT SINTERING THEREOF IN THE PRESENCE OF A HALOGEN-CONTAINING MATERIAL WHICH, DURING THE HEAT TREATING, PROMOTES THE FUSION OF THE METALLIC CHROMIUM INTO THE COATED SURFACE OF THE LENGTH OF FERROUS METAL. THE METHOD IS ESPECIALLY USEFUL IN PRODUCING A LENGTH OF A STAINLESS IRON, OR A LENGTH OF STAINLESS STEEL FOIL, WHICH IS CORROSION RESISTANT THROUGHOUT.
Inventors
- 👤 Albert Edward Jackson
Bibliographic Details
Claims Analysis
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1975-08-01 | 1976-01-31 | 1976-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-01 | 1980-01-31 | 1980-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-01 | 1984-01-31 | 1984-08-01 | $7700.00 | Window Closed / Lapsed |