| Patents for C21C 5 - Manufacture of carbon steel, e.g. plain mild steel, medium carbon steel, or cast-steel (14,381) |
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| 09/19/1978 | CA1038703A1 Carbonaceous refractory materials and method for their preparation |
| 09/12/1978 | US4113469 Refining molten metal |
| 09/12/1978 | US4113468 Continuous smelting method |
| 09/12/1978 | CA1038161A1 Coupler for tuyere punches |
| 09/12/1978 | CA1038160A1 Exhaust system for steel-making plant |
| 09/05/1978 | US4111687 Process for the production of intermediate hot metal |
| 09/05/1978 | US4111405 Seal between wall members of a metallurgical vessel enclosure |
| 08/29/1978 | US4110547 Method of steelmaking with direct current |
| 08/29/1978 | US4110546 DC arc furnace having a rotating arc |
| 08/22/1978 | US4108633 Arc furnace steelmaking |
| 08/22/1978 | US4108500 Process and equipment for effecting savings in compressed gases during injection of solids by means of pneumatic conveyors |
| 08/22/1978 | CA1036813A1 Apparatus for the production of metals by a smelting metallurgical process |
| 08/15/1978 | US4107244 Transmitting microwaves |
| 08/15/1978 | US4106760 Apparatus for repairing the furnace lining with a spray pipe of non-circular hollow cross section |
| 08/15/1978 | US4106758 Converters for refining metals |
| 08/15/1978 | US4106756 Oxygen lance and sensing adapter arrangement |
| 08/08/1978 | US4105507 Method and system for instantaneously determining the oxygen activity in molten metals |
| 08/08/1978 | US4105439 Method for production of refined steel |
| 08/08/1978 | US4105438 Suction through refractory siphon |
| 08/01/1978 | US4104058 Steelmaking |
| 08/01/1978 | US4103879 Apparatus for controlling emissions from oxygen steelmaking furnaces |
| 07/25/1978 | US4102675 Method of treating molten slags in steel making process |
| 07/18/1978 | US4101313 Process and apparatus for the production of steel |
| 07/18/1978 | US4101312 Method for operation of a converter |
| 07/11/1978 | US4100364 DC Electric arc furnace melt connection |
| 07/11/1978 | US4099964 Recycling of iron values |
| 07/11/1978 | US4099960 Method of smelting metallic material, particularly iron sponge |
| 07/11/1978 | US4099801 Heavy-duty hydrostatic bearing |
| 07/11/1978 | US4099709 Method and apparatus for controlling emissions from oxygen steelmaking furnaces |
| 07/04/1978 | US4099019 Electric furnace waste heat recovery method and apparatus |
| 07/04/1978 | US4098603 Method for melting steel |
| 07/04/1978 | US4098497 Medium-conduit-system to be used in tiltable-metallurgical-vessel-arrangement |
| 07/04/1978 | US4098128 Method of and apparatus for monitoring slag thickness in refining crucible |
| 07/04/1978 | US4097978 DC Arc furnace hearth electrode installation |
| 06/27/1978 | US4097031 Lance supporting and gyrating device in a steel-refining converter |
| 06/27/1978 | US4097030 Lance for desulphurizing cast iron or steel |
| 06/27/1978 | US4097029 Enclosure for steel converting apparatus |
| 06/27/1978 | US4096918 Metallurgical vat support system |
| 06/20/1978 | US4096004 Repair composition for steelmaking furnaces and the like |
| 06/20/1978 | US4095852 Measurement sliding bearing |
| 06/13/1978 | US4094667 Melting of fine particulate material in a high-speed rotary furnace |
| 06/13/1978 | US4094665 Method for simultaneous combined production of electrical energy and crude iron |
| 06/13/1978 | US4094496 Enclosure for steel converting apparatus |
| 06/13/1978 | US4094495 Method and apparatus for the production of quality steels |
| 06/06/1978 | US4093192 Tilting drive arrangement for a converter |
| 06/06/1978 | US4093190 Process for the protection of a refractory wall in service |
| 05/30/1978 | US4092053 Bearing arrangement for a tilting trunnion of a metallurgical vessel |
| 05/23/1978 | US4090869 Melting, adding ferro-alloy, decarburizing |
| 05/16/1978 | US4089677 Metal refining method and apparatus |
| 05/09/1978 | US4088824 Electric furnace station noise and smoke pollution control system |
| 05/02/1978 | US4087081 Plant for refining molten pig iron |
| 04/25/1978 | US4085924 Cooling assembly for metallurgical vessels |
| 04/18/1978 | US4084800 Thermally stable injector lance |
| 04/18/1978 | CA1029764A1 Rotating fitting |
| 04/18/1978 | CA1029560A1 Method and device for blow treatment of molten metals through differential jets |
| 04/18/1978 | CA1029558A1 Blowing process to manufacture chronium steels with very low carbon con ent |
| 04/11/1978 | US4083715 Iron-scale deposit, protective coating |
| 04/11/1978 | US4083544 Oxygen lance assembly |
| 04/11/1978 | US4083543 Oxygen lance assembly |
| 04/11/1978 | US4083542 Oxygen lance assembly |
| 04/11/1978 | US4083541 Oxygen lance assembly |
| 04/11/1978 | US4083540 Gas and oxygen steel making lance |
| 04/11/1978 | US4083539 Oxygen lance assembly |
| 03/28/1978 | US4081270 Renitrogenation of basic-oxygen steels during decarburization |
| 03/28/1978 | US4081269 Gas cleaning system for metallurgical apparatus |
| 03/28/1978 | US4081268 Method of protecting tuyeres for upwardly blowing pure oxygen through the bottom of steel converters |
| 03/21/1978 | USRE29584 Decarburization |
| 03/21/1978 | US4080511 Direct current electric arc furnace |
| 03/21/1978 | US4080195 Melt reduction of iron ore |
| 03/21/1978 | US4080014 Slide articulation bearing assembly |
| 03/21/1978 | US4079918 Method for closing a tap hole of a metallurgical vessel and an arrangement therefor |
| 03/14/1978 | US4079185 Direct current arcing electrodes |
| 03/14/1978 | US4078777 Water-air seal for converter hood |
| 03/07/1978 | USRE29567 Method of refining steel |
| 03/07/1978 | US4077616 Metallurgical vessel lining arrangement |
| 03/07/1978 | US4077614 Steelmaking apparatus |
| 02/28/1978 | US4076223 Enclosure for steel converting apparatus |
| 02/14/1978 | US4073643 Continuously cast steel slabs for steel sheets having excellent workabilities and method for production thereof |
| 02/07/1978 | US4072302 Tiltable metallurgical vessel arrangement |
| 02/07/1978 | US4072299 Method and apparatus for basic oxygen steel making employing the off-gas principle of pre-heating purposes |
| 01/24/1978 | US4070009 Tiltable metallurgical vessel arrangement |
| 01/03/1978 | US4066442 Method of making chrome steel in an electric arc furnace |
| 12/27/1977 | US4065298 Steel making process by oxygen top-blown converter |
| 12/27/1977 | US4065159 Rotary connector |
| 12/13/1977 | US4062674 Iron or steelmaking process |
| 12/13/1977 | US4062657 Method and apparatus for desulphurizing in the gasification of coal |
| 12/13/1977 | US4062531 Ferruginous slag oxidizing apparatus |
| 12/13/1977 | US4062530 Oxygen-lime distributor for steelmaking vessel |
| 12/06/1977 | US4061319 Mobile truck for relining a converter |
| 12/06/1977 | US4061318 Metallurgical vessel |
| 11/29/1977 | US4060406 Aluminum, alumina, fluorspar, alkali metal carbonate slag conditioner |
| 11/15/1977 | US4058017 Automatic probe feeding, setting and withdrawing apparatus |
| 11/08/1977 | US4057421 Process for vacuum decarburization of steel |
| 10/25/1977 | US4055335 Transformation of top-blown steel converter vessel to bottom-blown type |
| 10/25/1977 | US4055215 Hot-top for the production of ingots using an electroslag remelting process |
| 10/18/1977 | US4054274 Method and apparatus for avoiding the emission of carbon monoxide from converter exhaust gases |
| 10/11/1977 | US4053307 Quick lime, chromium ore, silicic reducing agent |
| 10/11/1977 | US4053302 Synthetic fluorspar for conditioning electric furnace slags |
| 10/11/1977 | US4053301 Process for the direct production of steel |
| 10/04/1977 | US4052197 Process for making steel from pig iron |