| 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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| 08/07/1979 | US4163663 Refining process based on top-blowing with oxygen |
| 07/25/1979 | EP0003207A1 Processes and apparatuses for drying pulverulent metallic waste such as sludge and chips |
| 07/25/1979 | EP0003108A1 Torque support for a gear box, particularly for a converter driving gear |
| 07/24/1979 | US4162156 Slag-free |
| 07/24/1979 | CA1058884A1 Method of producing low sulfur steel |
| 07/24/1979 | CA1058863A1 Gas collecting hood for metallurgical vessel |
| 07/17/1979 | US4161620 Electric arc furnace for steel making, with no refractory bricks at the furnace wall |
| 07/17/1979 | US4161618 DC arc furnace operation indicating system |
| 07/10/1979 | US4160868 Apparatus and method for melting ferrous pellets |
| 07/10/1979 | CA1057953A1 Iron or steelmaking process |
| 07/10/1979 | CA1057952A1 Method of burning-in lining in bottom blown steelmaking furnace |
| 07/03/1979 | US4160117 Arc furnace enclosure |
| 07/03/1979 | CA1057505A1 Smelting system for increased lining service life of refining vessels |
| 06/26/1979 | CA1057053A1 Bottom handling apparatus for steel converter vessels |
| 06/12/1979 | US4157817 Converter |
| 06/12/1979 | US4157813 Blowing oxidizing gas in the refining of molten metal |
| 06/12/1979 | US4157621 Converter linings, circulating dry air under positive pressure |
| 06/05/1979 | CA1055696A1 Heating device for metallurgical converters_ |
| 06/05/1979 | CA1055692A1 Apparatus for the retention of hydrocarbons in a converter |
| 06/05/1979 | CA1055683A1 Method of an apparatus for the decrusting of metallurgical lances |
| 05/29/1979 | CA1055553A1 Extended arc furnace and process for melting particulate charge therein |
| 05/22/1979 | US4156102 Heat exchanging |
| 05/22/1979 | US4155703 Lining truncated cone walls by means of refractory bricks |
| 05/22/1979 | CA1055090A1 Slide bearing for measurement purposes |
| 05/08/1979 | CA1053908A1 Method for refining of metal |
| 04/24/1979 | US4150974 Change in voltage as electrode contacts slag or molten metal |
| 04/24/1979 | US4150973 Method of controlling molten steel temperature and carbon content in oxygen converter |
| 04/18/1979 | EP0001381A1 Apparatus for supplying media to a blowing lance for a metallurgical vessel |
| 04/17/1979 | US4149878 Use of argon to prepare low-carbon steels by the basic oxygen process |
| 04/17/1979 | US4149877 Controlling pig iron refining |
| 04/17/1979 | US4149706 Slag shield for a steel converter |
| 04/17/1979 | CA1052579A1 Method of making steel |
| 04/10/1979 | US4149024 Arc furnace for reducing metal oxides and method for operating such a furnace |
| 04/10/1979 | US4148629 Process for controlling a steel refining process for steels having a carbon content within the range of 0.1 to 0.8 % by weight |
| 04/03/1979 | US4147532 Process for piloting or controlling a steel refining process |
| 04/03/1979 | CA1051660A1 Protection for the outlets from metallurgical vessels, especially for steel-plant converters |
| 04/03/1979 | CA1051659A1 Liquid-fuel atomization and injection device |
| 03/27/1979 | CA1051204A1 Method of controlling temperature in q-bop |
| 03/27/1979 | CA1051203A1 Method for increasing metallic yield in bottom blown processes |
| 03/20/1979 | US4145562 Uniform electric conductivity |
| 03/20/1979 | CA1050756A1 Thrust bearing device for metal treating vessel |
| 03/20/1979 | CA1050755A1 Apparatus for producing steel |
| 03/13/1979 | US4143864 Hood arranged on a blowing stand comprising a tiltable converter |
| 03/13/1979 | CA1050277A1 Method for melting sponge iron |
| 03/06/1979 | US4142556 Refractory lining tuyere for metallurgical furnace |
| 03/06/1979 | CA1049776A1 Mobile refractory gunning device |
| 02/27/1979 | US4141723 Process for producing stainless steel |
| 02/27/1979 | US4141722 Method of treating ferruginous slags |
| 02/27/1979 | US4141249 Sub-lance assembly for sampling and temperature-measuring of molten metal during refining |
| 02/20/1979 | US4140521 Oxidation, reduction, blowing |
| 02/20/1979 | CA1048959A1 Metallurgical vessel lining arrangement |
| 02/13/1979 | US4139722 Electric induction heating furnace |
| 02/13/1979 | US4139368 Metallurgical method |
| 02/13/1979 | US4139185 Lance manipulator |
| 02/06/1979 | US4138166 Slide-articulation bearing, in particular for tiltable converters |
| 02/06/1979 | US4138097 Metallurgical vessel |
| 02/06/1979 | CA1048091A1 Protecting metal heating electrodes of melting furnaces with dc current and apparatus therefor |
| 02/06/1979 | CA1047764A1 Tuyere support means for metallurgical vessels |
| 01/30/1979 | US4136857 Method and apparatus for automatically controlling the rate of flux injection to a converter |
| 01/30/1979 | CA1047247A1 Slide articulation bearing assembly |
| 01/23/1979 | US4135916 Process in the manufacture of steels containing nickel |
| 01/23/1979 | US4135915 Kinetic energy monitor |
| 01/16/1979 | US4134755 Method for removing zinc type metals and compounds in dust recovery process in iron manufacture |
| 01/16/1979 | CA1046284A1 Steel making process by oxygen top-blown converter |
| 01/10/1979 | EP0000115A1 Tilting drive for a converter |
| 01/09/1979 | US4133967 Two-stage electric arc - electroslag process and apparatus for continuous steelmaking |
| 01/09/1979 | CA1045823A1 Static method of controlling the refining reactions of pig iron for steel making purposes in an oxygen top blowing converter |
| 01/02/1979 | US4132452 Slide-articulation bearing, in particular for tiltable converters |
| 12/26/1978 | US4130924 Removal and/or installation of top section of steelmaking vessel |
| 12/19/1978 | US4130417 Process for refining high-carbon ferro-alloys |
| 12/19/1978 | CA1044466A1 Steelmaking process and apparatus |
| 12/05/1978 | US4128233 Converter-bottom-fastening mechanism |
| 12/05/1978 | US4128232 Cooling assembly for metallurgical vessels |
| 12/05/1978 | US4128230 Installation for the collection of gases emitted by a tiltable converter |
| 12/05/1978 | CA1043571A1 Method of producing low nitrogen steel |
| 11/21/1978 | US4126300 Hood for steel processing vessel |
| 11/14/1978 | US4125737 Electric arc furnace hearth connection |
| 11/14/1978 | CA1042215A1 Method for refining pig iron into steel |
| 11/14/1978 | CA1042208A1 Adjustably positionable supersonic nozzle means |
| 11/14/1978 | CA1042207A1 Metallurgical lance |
| 11/14/1978 | CA1042206A1 Ferro lime |
| 11/07/1978 | US4124200 Converter for refining liquid metals, with heating and blowing in means |
| 11/07/1978 | CA1041770A1 Kinetic energy monitor |
| 11/07/1978 | CA1041761A1 Tiltable converter |
| 10/31/1978 | US4123259 Burning fuel in a pig iron melt; increase in processable scrap production |
| 10/31/1978 | US4123043 Gas cleaning system for metallurgical apparatus |
| 10/31/1978 | US4123042 Steel converter vessel tuyere block construction |
| 10/31/1978 | CA1041296A1 Containment of dust and fumes from a metallurgical vessel |
| 10/24/1978 | US4122296 Distributing and poking machine for metallurgical furnaces |
| 10/24/1978 | US4121811 Metallurgical vessel suspension system |
| 10/24/1978 | US4121481 Device at a converter with a tilting drive |
| 10/24/1978 | CA1040863A1 Process for the production of molten metal |
| 10/17/1978 | US4120696 Process for the production of steel |
| 10/17/1978 | US4120260 Apparatus for applying refractory material onto the inner surface of a furnace |
| 10/10/1978 | US4119454 Smelting method |
| 10/03/1978 | US4117868 Refractory lined cylindrical article |
| 10/03/1978 | US4117719 Measuring friction bearings |
| 10/03/1978 | CA1039501A1 Metallurgical vessel having restraining means |
| 09/26/1978 | US4116678 Method of producing iron |
| 09/19/1978 | CA1038917A1 Method and device for continuous control and regulation of the thermal parameters in metallurgical ovens |