| Patents for C21C 7 - Treating molten ferrous alloys, e.g. steel, not covered by groups (11,430) |
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| 09/02/1980 | US4220191 Method of continuously casting steel |
| 08/19/1980 | CA1083824A1 Slag fluidizing agent and method of using same for iron and steel-making processes |
| 08/12/1980 | US4217134 Lime, fluorspar, alumina, steels |
| 08/05/1980 | US4215854 Melt processing apparatus with tiltable melt receptacle |
| 07/29/1980 | US4214899 Method for the addition of a reactive metal to a molten metal bath |
| 07/29/1980 | US4214898 Process for preventing the rephosphorization of electric steel |
| 07/29/1980 | CA1082456A1 Apparatus for refining molten metal |
| 07/23/1980 | EP0013550A1 Process and apparatus for the desulphurisation of molten ferrous metals |
| 07/23/1980 | EP0013351A1 Method and apparatus for determining the weight of molten metal in situ |
| 07/22/1980 | US4213780 Method of introducing calcium and calcium alloys into a vessel of molten metal |
| 07/15/1980 | US4212665 Decarburization of metallic alloys |
| 07/09/1980 | EP0013271A1 Method for the production of half-calmed steel |
| 07/08/1980 | US4211556 Reverberatory smelting of non-ferrous metal sulfide ores |
| 07/08/1980 | US4211554 Method of introducing addition agents into a vessel of molten metal |
| 07/08/1980 | US4211553 Method of refining of melts by means of a pulverous solid material and/or a gas |
| 07/08/1980 | CA1080977A1 Method and device for nodularizing cast iron |
| 06/25/1980 | EP0012226A1 Method for treating boron-containing steel |
| 06/24/1980 | US4209325 Desulphuration of metals |
| 06/24/1980 | US4209324 Titanium-containing treatment agents for molten ferrous metal |
| 06/17/1980 | US4208207 Carrier body and method for introduction of a reaction agent into metal melts |
| 06/17/1980 | US4208206 Method for producing improved metal castings by pneumatically refining the melt |
| 06/17/1980 | CA1079529A1 Treatment body for the introduction of treatment agents into molten metals |
| 06/12/1980 | WO1980001170A1 Disilification process of manganese alloys |
| 06/10/1980 | US4207094 Method for preheating the oxygen in an oxygen steel making process |
| 06/10/1980 | CA1079072A1 Arc steelmaking |
| 06/03/1980 | US4205981 Method for ladle treatment of molten cast iron using sheathed magnesium wire |
| 06/03/1980 | CA1078624A1 Process for making a steel melt for continuous casting |
| 06/03/1980 | CA1078623A1 Methods and apparatus for adding mischmetal to molten steel |
| 05/28/1980 | EP0011478A1 Apparatus and process for the treatment of molten metal |
| 05/27/1980 | US4204864 Particulate slagging composition for the continuous casting of steel |
| 05/20/1980 | US4203763 Method of manufacturing a lead alloy steel and a steel made according to the method |
| 05/20/1980 | US4203581 Apparatus for refining molten aluminum |
| 05/20/1980 | CA1077682A1 Methods of desulphurizing fluid materials |
| 05/13/1980 | US4202692 Calcium and alkali metal carbonates, sodium fluoride and fluorspar, continuous casting of steel |
| 05/13/1980 | CA1077277A1 Process for refining high-carbon ferro-alloys |
| 05/06/1980 | CA1076847A1 Magnesium-containing treatment agents |
| 04/29/1980 | US4200458 Method for the alloying of a metal melt |
| 04/29/1980 | US4200456 Method of and member for adding treating agent for molten metal |
| 04/29/1980 | US4200452 Passig a direct current through said melt |
| 04/22/1980 | US4199353 Molten metal treatment |
| 04/22/1980 | US4199351 Treatment agents for molten metals |
| 04/22/1980 | US4199350 Method for the production of quality steels |
| 04/15/1980 | US4198229 Method of dephosphorization of metal or alloy |
| 04/15/1980 | CA1075468A1 Method of producing cast iron |
| 04/08/1980 | CA1074976A1 Method of producing steel ingots from unkilled steel |
| 03/25/1980 | US4194901 Increasing carbon content of steel and cast iron |
| 03/25/1980 | CA1074125A1 Reducing material for steel making |
| 03/11/1980 | US4192490 Lance for injecting powdery material into molten metal |
| 03/06/1980 | WO1980000364A1 Device for gasodynamic mixing of molten metal |
| 03/05/1980 | EP0008579A1 Method of making a filled tubular article and article made thereby |
| 03/05/1980 | EP0008463A1 Method for controlling the temperature of the melt during pneumatic refining of steel |
| 03/04/1980 | US4191885 Adding a trace element |
| 03/04/1980 | US4191563 Continuous stream treatment of ductile iron |
| 02/20/1980 | EP0007961A1 Desulphurisation of ferrous metals |
| 02/12/1980 | US4188206 Metallurgical process |
| 02/06/1980 | EP0007760A1 Method of producing rim-stabilized steel ingots |
| 02/05/1980 | US4187102 Fast and slow oxidizing elements |
| 02/05/1980 | CA1070986A1 Rare earth metal treated cold rolled non-oriented silicon steel |
| 02/05/1980 | CA1070944A1 Tuyere for the injection of reaction gas |
| 01/29/1980 | US4186000 Stirring boron-containing dispersing agent with molten mixture of salt and magnesium of magnesium alloy, cooling, pulverizing in hammer mill |
| 01/22/1980 | CA1070120A1 Steelmaking process |
| 01/15/1980 | US4183507 System for introducing addition agents into vessel of molten metal |
| 01/09/1980 | EP0006775A1 Gas-permeable refractory elements |
| 01/09/1980 | EP0006758A1 Means for adding materials to a flowing stream of molten metal |
| 01/09/1980 | EP0006453A1 Process for increasing the lifetime of flush gas lances with porous lance heads made of graphite and inertion cage used therefor |
| 01/08/1980 | US4182498 Recovery of round metal granules from process sludge |
| 01/08/1980 | CA1069314A1 Process for the addition of calcium to molten steel |
| 12/18/1979 | US4179103 Means for injecting gas into a molten metal |
| 12/18/1979 | US4179102 Apparatus for the degassing and filtration of molten metal |
| 12/11/1979 | US4178175 Method for agitating a bath of melted metal for treating the same |
| 12/04/1979 | US4177070 Exothermic slag-forming mixture |
| 12/04/1979 | US4177066 Method and apparatus for the removal of impurities from molten metal |
| 12/04/1979 | US4177065 Method for the degassing and filtration of molten metal |
| 12/04/1979 | CA1067293A1 Method for injecting a carbon-carrying powder in a metallic bath |
| 12/04/1979 | CA1067283A1 Agent feeder for pipe casting apparatus |
| 11/28/1979 | EP0005684A1 Method for introducing deoxy-desulphurizing substances into liquid metals without the use of gaseous carriers |
| 11/28/1979 | EP0005506A1 Method for treating melts of pig iron and steel or steel alloys |
| 11/27/1979 | US4175918 Apparatus/metals/ |
| 11/20/1979 | US4174962 Core comprising liquifying agent |
| 11/14/1979 | EP0005152A1 Filled tubular article for controlled insertion into molten metal |
| 11/13/1979 | US4174212 Decarbonization |
| 11/06/1979 | US4173466 Magnesium-containing treatment agents |
| 10/31/1979 | EP0005124A2 Improved process for preparing composite materials for treating molten metals and bodies thereby produced |
| 10/30/1979 | CA1065118A1 Method for incorporating highly reactive materials into steel |
| 10/23/1979 | CA1064653A1 Powder for continuous casting |
| 10/09/1979 | US4170468 Reductiong |
| 10/09/1979 | US4170467 Method for producing high chromium steels having extremely low carbon and nitrogen contents |
| 10/02/1979 | US4169724 Reduction, carbides of alkaline earth metals |
| 09/25/1979 | CA1062917A1 Process for making iron or steel utilizing lithium containing material as auxiliary slag formers |
| 09/25/1979 | CA1062916A1 Method of introducing alkaline-earth treating agents into steel melts |
| 09/18/1979 | US4168158 Method for producing alloy steels having a high chromium content and an extremely low carbon content |
| 09/11/1979 | US4167409 By combining with silicon, silicon dioxide, or tin |
| 09/11/1979 | CA1062016A1 Ferrous metal network impregnated with magnesium metal |
| 08/28/1979 | US4165980 Method of rapidly decarburizing ferro- alloys with oxygen |
| 08/28/1979 | CA1061076A1 Continuous casting method and apparatus |
| 08/21/1979 | CA1060929A1 Extended arc furnace and process for melting particulate charge therin |
| 08/09/1979 | WO1979000536A1 Method of making a filled tubular article and article made thereby |
| 08/07/1979 | US4163827 Mixing treating agent and binder, extruding, helically wrapping in protective casing |
| 07/31/1979 | US4162699 Controlling continuous casting |
| 07/26/1979 | WO1979000481A1 Method,apparatus and means for treating melted iron with an alkali or earth alkali metal |