| Patents for C21C 7 - Treating molten ferrous alloys, e.g. steel, not covered by groups (11,430) |
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| 03/03/1987 | US4647019 Very small refining vessel |
| 03/03/1987 | US4647018 Apparatus for degassing molten metal |
| 02/26/1987 | WO1987001137A1 Method and device for treatment of melt |
| 02/26/1987 | DE3529419A1 Method for producing alloyed stainless steels with very low carbon contents |
| 02/25/1987 | EP0211209A1 Process for manufacturing a porous gas-flushing brick for metallurgical vessels |
| 02/24/1987 | US4645130 Method for treating carbide-based desulfurizing reagents for injection into molten iron |
| 02/17/1987 | US4643404 Tiltable metallurgical vessel arrangement |
| 02/11/1987 | CN85108323A Oxygen gun with an auxiliary blow pistol for converter steel smelt |
| 02/10/1987 | US4642219 Bearing steel and method of manufacturing the same |
| 01/28/1987 | CN86104547A Method of assembling a gas circulation block provided for metallurgical vessels |
| 01/21/1987 | EP0209211A2 Lance supporting device for a vacuum degassing vessel |
| 01/20/1987 | EP0190313A4 Method and apparatus for continuous steelmaking. |
| 01/14/1987 | EP0208032A1 Metallurgical recarburizing material |
| 01/13/1987 | US4636249 Treatment of molten metal |
| 01/13/1987 | CA1216500A1 Fluxes for casting metals |
| 01/13/1987 | CA1216430A1 Vacuum treating steels |
| 01/07/1987 | EP0207224A1 Apparatus for introducing substances into liquids e.g. metal melts |
| 01/07/1987 | CN85105289A Process for removing impure elements from pig iron, steel, other metals and alloys |
| 01/07/1987 | CN85104955A Process for desulphurising melten metal |
| 01/06/1987 | US4634104 Hooded metallurgical vessel |
| 12/31/1986 | CN85105347A New process of phosphor removal in high manganese steel and high alloy steels |
| 12/30/1986 | US4632700 Electric arcs |
| 12/30/1986 | EP0207066A2 Method and apparatus for manufacturing ingots |
| 12/24/1986 | CN86102210A Treating agent for desulfurizing molten steels and method for treating molten steels |
| 12/23/1986 | US4630802 Nozzle for injection lance |
| 12/23/1986 | US4630801 Apparatus for adding solid alloying ingredients to molten metal stream |
| 12/16/1986 | US4629504 Steel materials for welded structures |
| 12/16/1986 | CA1215235A1 Treatment agents for molten steel |
| 12/16/1986 | CA1215234A1 Method of steel production from solid iron-containing material |
| 12/10/1986 | EP0204210A1 Method for controlling secondary top-blown oxygen in subsurface pneumatic steel refining |
| 12/10/1986 | EP0204076A2 Arrangement of a sleeve for the injection of gases or solids into a ladle containing a metallurgical melt |
| 12/10/1986 | CN85104427A Granular desulfurizing agent of melting iron and process for desulfuration of melting iron |
| 12/09/1986 | CA1214942A1 Calcium oxide based flux compositions |
| 12/03/1986 | EP0203695A1 Method for refining molten metal bath to control nitrogen |
| 12/03/1986 | EP0203533A2 Method of heating molten steel by arc process |
| 12/03/1986 | CN86102836A Sleeve arrangement for blasting gaseous or solid materials into molten metal container |
| 12/02/1986 | CA1214646A1 Removing phosphorous from iron |
| 12/02/1986 | CA1214635A1 Device for injecting gaseous and matters in a bath of molten metal at the refining stage |
| 11/25/1986 | US4624707 Steels calcium oxide, calcium fluoride, magnesium oxide, barium and/or cerium oxide |
| 11/25/1986 | US4624702 Method of vaporizing additives in metal melts |
| 11/19/1986 | CN86103345A Method for controlling secondary top-blown oxygen in subsurface pneumatic steel refining |
| 11/18/1986 | US4623385 Immersion pipe |
| 11/18/1986 | CA1214192A1 Plasma melting furnace with other added gas streams |
| 11/12/1986 | EP0201299A2 Method and apparatus for adding solid alloying ingredients to molten metal stream |
| 10/29/1986 | EP0199714A2 Process for the production of steel from sponge iron and plant for carrying out the process |
| 10/29/1986 | EP0198910A1 Process and device for detecting slag. |
| 10/28/1986 | US4619696 Additive for metallurgical liquids, and method and device for the preparation thereof |
| 10/28/1986 | US4619694 Method of refining steel and apparatus |
| 10/28/1986 | US4619692 Remelting by pressure electroslag with solid nitrogen compound |
| 10/28/1986 | CA1213148A1 Apparatus and process for producing predominately iron alloy containing magnesium |
| 10/28/1986 | CA1213147A1 Method and installation for the treatment of steel in the casting ladle |
| 10/22/1986 | CN86102801A Process for the production of steel from sponge iron and plant for carrying out the process |
| 10/21/1986 | US4618368 Method of injection of wire into molten steel and apparatus for uncoiling wire for use in the method |
| 10/21/1986 | US4618126 Swivelling sliding closure unit |
| 10/14/1986 | US4617052 Process for preparing a mother alloy for making amorphous metal |
| 10/14/1986 | US4616809 Gas bubble brick for metallurgical vessels |
| 10/14/1986 | US4616808 Apparatus for the treatment and casting of metals and alloys in a closed space |
| 10/14/1986 | CA1212548A1 Particulate carbide-based desulfurizer and organic polar liquid composition |
| 10/08/1986 | EP0196952A2 Process for obtaining a killed steel with a low nitrogen content |
| 10/07/1986 | US4615730 Using oxygen and nitrogen refining gas to decarbon ize, then inert gas to remove nitrogen |
| 10/01/1986 | CN86102142A Lance supporting device |
| 09/30/1986 | US4614540 Process for the removal of contaminating elements from pig-iron, steel, other metals and metal alloys |
| 09/23/1986 | US4613113 Apparatus for blowing powdery refining agent into refining vessel |
| 09/16/1986 | US4612046 Insulating and slag inducing composition and method for molten metal contact |
| 09/16/1986 | US4612044 Method of vacuum treating metal melts, and vessel for use in the method |
| 09/16/1986 | US4612043 Steel making method |
| 09/10/1986 | EP0194098A1 Treating agent for desulfurizing molten steels and method for treating molten steels |
| 09/03/1986 | EP0192807A2 Process for manufacturing active briquettes rich in carbon |
| 09/02/1986 | US4609538 Scrap heating method |
| 09/02/1986 | US4609400 Method and apparatus for preheating charge materials for continuous steelmaking |
| 09/02/1986 | CA1210833A1 Solids feeding control for gas blowing lance |
| 08/28/1986 | WO1986004928A1 Apparatus for introducing treatment substances into liquids |
| 08/27/1986 | EP0192240A1 Method for addition of low-melting point metal to molten steel |
| 08/27/1986 | EP0192046A1 Metallurgical installation comprising a portal-like structure |
| 08/27/1986 | CN85104910A Metallurgy of high carbon and high bearing steel in basic electric arc furnace with salt addition |
| 08/27/1986 | CN85100331A Synthetic metallurgical blowing powder and its preparation |
| 08/20/1986 | CN85100598A Decarbonization of molten iron by centrifugalization and combustion |
| 08/19/1986 | US4606530 Installation and process for continuously charging a reactor with solid material and heating said material with the gases emitted from said reactor |
| 08/13/1986 | EP0190313A1 Method and apparatus for continuous steelmaking. |
| 08/12/1986 | US4605437 Charging scrap iron and solid cabonaceous material, oxidation, melts using heat generated by oxidation reaction |
| 08/06/1986 | EP0190089A1 Process for treating liquid metals by a calcium-containing cored wire |
| 08/06/1986 | CN85101003A Dephosphorization technology for low phosphorus and extra-low phosphorus high chromium stainless steel |
| 08/05/1986 | US4604268 Methods of desulfurizing gases |
| 08/05/1986 | US4604138 One step decarbonization dephosphorization by blowing oxygen in o melt |
| 08/05/1986 | US4604137 Controlling gas hold-up |
| 08/05/1986 | US4604135 Apparatus and process for the metallurgical aftertreatment of premelted metals |
| 08/05/1986 | US4603810 Method and apparatus for the acceleration of solid particles entrained in a carrier gas |
| 07/31/1986 | WO1986004359A1 Method for treating liquid metals by using a calcium-containing coated wire |
| 07/30/1986 | EP0189016A1 Swinging out device for mounting and dismounting a blowing lance |
| 07/30/1986 | EP0188891A1 Improvements in or relating to the treatment of molten metal |
| 07/30/1986 | CN85107205A Cermet oxygen-blow pipe |
| 07/29/1986 | US4602949 Method and apparatus for adding solid alloying ingredients to molten metal stream |
| 07/23/1986 | EP0187997A1 Process for the automatic forming of continuous metal tube filled with powdered materials, its direct introduction into liquid metal, and related equipment |
| 07/15/1986 | US4600427 Low tempewrature, desulfurization |
| 07/15/1986 | US4599967 For cleaning/deskulling a protruding nozzle |
| 07/08/1986 | US4599107 Accurate decarbonization |
| 07/08/1986 | CA1207145A1 Apparatus for guiding and changing immersion lances |
| 07/02/1986 | CN85108860A Method for vaporizing additives in metal melts |
| 06/25/1986 | EP0185141A1 Decarburizing a metal or metal alloy melt |
| 06/24/1986 | USRE32192 Refractory piece permeable to gases |