| Patents for C21C 7 - Treating molten ferrous alloys, e.g. steel, not covered by groups (11,430) |
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| 12/02/1992 | CN1066687A Alsifer smelting from ores directly |
| 12/02/1992 | CN1066685A Smelting method of stainless steel in arc furnace with top and bottom complex blowing |
| 12/01/1992 | US5167698 Vacuum-suction degassing method and an apparatus therefor |
| 11/26/1992 | WO1992020986A1 Method for decarburizing steel in a vacuum chamber, and vaccum chamber for implementing the method |
| 11/19/1992 | EP0514294A1 Agent for desulfphuration of cast iron consisting of magnesium coated with calcium carbide |
| 11/19/1992 | EP0514246A1 Steel decarburation process in a vacuum treatment chamber and vacuum treatment chamber therefor |
| 11/17/1992 | US5164148 Apparatus for heating molten metal in a ladle |
| 11/17/1992 | CA1310193C Very small steel refining vessel |
| 11/11/1992 | EP0512658A1 Plant for treatment of liquid steel and process for running the same |
| 11/11/1992 | CN1019028B Si-al-ba-fe alloy used in steel deoxidizing and its preparation method |
| 11/11/1992 | CN1019026B Gas bubbing brick |
| 11/05/1992 | DE4114607A1 Circulation de-gassing of steel for metallurgical industry - by adding alloying material added in the form of discrete portions |
| 11/04/1992 | EP0511648A1 High-nitrogen ferritic heatresisting steel with high niobium content and method of production thereof |
| 11/04/1992 | EP0511647A1 High-nitrogen ferritic heat-resisting steel with high vanadium content and method of production thereof |
| 11/04/1992 | CN1065884A Gas bottom blowing and supplying system for electric arc furnace |
| 11/03/1992 | US5160693 Impeller for treating molten metals |
| 11/03/1992 | US5160531 Vaccum refining method utilizing induction heater around a ladle in a vacuum container |
| 11/03/1992 | US5160478 Gas flushing apparatus for metallurgical vessel |
| 10/28/1992 | EP0510842A2 Metallurgical fluxes |
| 10/27/1992 | US5158668 Preparation of recarburizer coke |
| 10/26/1992 | CA2067067A1 Metallurgical fluxes |
| 10/21/1992 | CN2119426U Single runner shunt jet of oxygen lance for open-hearth furnace |
| 10/13/1992 | CA2051832A1 Gas introducing and stirring apparatus of metallurgical vessel |
| 10/06/1992 | US5152831 Decarburization, adding hydrogen, reducing pressure, repessurizing |
| 09/30/1992 | CN1018460B Process for adding selenium to melten steel |
| 09/23/1992 | CN1064706A Process for treatment of steel-mill slag, installation for carrying it out and slag obtained by process |
| 09/15/1992 | CA1307396C Charging material preheater for preheating charging material for a metallurgical smelting unit |
| 09/02/1992 | EP0501173A1 Process and apparatus for treating steel-making slags |
| 09/02/1992 | EP0501104A1 After-treatment plant for steel |
| 09/02/1992 | CA2062168A1 Process for the treatment of steel mill slag, installation therefor, and slag obtained with such process |
| 09/01/1992 | US5143357 Melting metal particles and dispersing gas with vaned impeller |
| 08/26/1992 | EP0294371B1 Activator mixture for increasing the strength of iron alloys |
| 08/26/1992 | CN1017999B Compound blow-double flow duct oxygen lance semisteel making technology and oxygen lance |
| 08/20/1992 | WO1992013975A1 A method of manufacturing stainless steel |
| 08/19/1992 | EP0499269A1 Cored wire for inoculation |
| 08/19/1992 | EP0411061A4 Fe-mn-al-c alloys and their treatment |
| 08/19/1992 | CN1063716A Al-mg ponring refractory coating high-temp. oxygen blow tube |
| 08/19/1992 | CN1063634A Low carbon protective slag for die casting |
| 08/18/1992 | US5139569 Process for the production of alloy steel grades using treatment gas consisting of CO2 |
| 08/15/1992 | CA2061164A1 Inoculation wire |
| 08/12/1992 | EP0498712A1 Metallurgical additive |
| 08/06/1992 | DE4101833A1 Lifting gas jet - has coaxial slit in inner wall cladding of trunk of vacuum assembly to counteract pressure changes |
| 08/04/1992 | CA1305863C Method for reducing dissolved oxygen and carbon contents in molten steel |
| 07/14/1992 | US5129959 Sulfur treatment of magnesium-contaminated fe-cr-al alloy for improved whisker growth |
| 07/11/1992 | WO1992012266A1 A method of promoting the decarburization reaction in a vacuum refining furnace |
| 07/11/1992 | CA2100263A1 Method of promoting the decarburizsation reaction in a vacuum refining furnace |
| 07/08/1992 | EP0493591A1 Vacuum processing of reactive metal |
| 07/07/1992 | US5127632 Gas flushing device including perforated brick and gas flushing stone assembly |
| 06/30/1992 | US5126047 Refractory member in form of hollow, rectangular prism |
| 06/24/1992 | EP0236505B1 Case-hardening steel and process for its production |
| 06/24/1992 | CN2108102U Submerged type energy-saving high-efficiency oxygen blowing lance |
| 06/24/1992 | CN1062173A Desulphating regeneration method of stainless steel peel grinding bits |
| 06/23/1992 | US5123632 Method for the pneumatic injection of metered quantities of powdered substances into a chamber at a variable pressure |
| 06/23/1992 | CA1304015C Powder-filled welded steel tube and method for the continuous manufacture thereof |
| 06/10/1992 | EP0489167A1 Method of manufacturing tube filled with powder and granular material |
| 06/10/1992 | CN1061804A Nodularizing additive for casting high toughness nodular graphite cast iron |
| 06/10/1992 | CN1061802A Lanthanum based rare-earth (mg) si-fe alloy and related smelting process |
| 06/10/1992 | CN1016968B Process for feeding heat energy into molten metal bath |
| 06/09/1992 | US5120354 Method of disposing of fiber reinforced aluminum alloy composite |
| 06/09/1992 | CA1302713C Activator mixture for increasing the strength of iron alloys |
| 06/08/1992 | WO1992010593A1 Bottom or wall structure for a metallurgical vessel |
| 06/03/1992 | EP0488293A1 Vacuum refining method utilizing induction heater around a ladle in a vacuum container |
| 06/03/1992 | EP0474703A4 Manufacture of ferroalloys using a molten bath reactor |
| 06/02/1992 | CA1302096C Wire injection nozzle |
| 06/02/1992 | CA1302084C Solid fuel composition from waste products |
| 06/02/1992 | CA1302081C Consumable lance |
| 05/27/1992 | EP0486695A1 Process for refining molten metal or alloy |
| 05/27/1992 | CN1061438A Refining agent for cast iron and cast steel |
| 05/21/1992 | CA2055817A1 Metallurgical furnace installation |
| 05/19/1992 | CA1301225C Method and apparatus for heating molten steel utilizing a plasma arc torch |
| 05/17/1992 | CA2055186A1 Melting metal particles and dispersing gas with vaned impeller |
| 05/13/1992 | EP0485309A1 Product based on coated magnesium for the desulphurizing of cast iron or liquid steel |
| 05/13/1992 | EP0484743A1 Cored wire for the treatment of molten cast iron |
| 05/13/1992 | CN1016619B Method of deoxidizing and alloying steel |
| 05/06/1992 | CN1060874A Briquetting method for powdered alloy |
| 05/05/1992 | US5110351 Method of promoting the decarburization reaction in a vacuum refining furnace |
| 05/05/1992 | CA1299985C Method for determining deoxidant concentration in molten metal |
| 05/05/1992 | CA1299878C Devices and apparatus for injecting gas into high temperature liquids, e.g. metal melts |
| 05/05/1992 | CA1299877C Metallurgical treatment agents |
| 04/28/1992 | CA1299373C Method and apparatus for degassing molten metal utilizing rh method |
| 04/21/1992 | US5106412 Method for providing steel with lowered hydrogen level after ladle treatment |
| 03/24/1992 | CA1297679C Removal of nitrogen from iron |
| 03/18/1992 | EP0474759A1 Treatment of a melt with a gas and means therefor |
| 03/18/1992 | EP0474703A1 Manufacture of ferroalloys using a molten bath reactor. |
| 03/18/1992 | CN1059564A Hot-metal process for producing composite aluminium-containing deoxidant in ore furnace |
| 03/18/1992 | CN1015910B Gas bubbling device |
| 03/18/1992 | CN1015909B Gas bubbling device |
| 03/17/1992 | US5096164 Steel-processing vessel having a graphite rod heating means |
| 03/15/1992 | WO1992004998A1 Device for inserting and removing stopper bricks for metallurgical vessels |
| 03/10/1992 | CA1297144C Gas scavenging apparatus for metallurgical vessels |
| 03/10/1992 | CA1296890C Side-injected metal refining vessel |
| 03/01/1992 | CA2024237A1 Apparatus for producing quality steel directly from iron ores |
| 03/01/1992 | CA2024236A1 Process of producing quality steel directly from iron ores |
| 02/25/1992 | US5091000 Bubbling a gas to trap inclusions which rise to the surfaces are removed |
| 02/20/1992 | DE4025415A1 Fully automatic computer-controlled de-slagging equipment - useful for de-slagging pig iron or steel in ladles |
| 02/19/1992 | EP0471027A1 Treatment of melts in a ladle and apparatus for such treatment |
| 02/19/1992 | CN1015553B Cast iron strong graphited inoculant |
| 02/11/1992 | US5087290 Desulfurization, magnesium treatment and inoculation in single step |
| 02/06/1992 | WO1992001818A1 Vacuum processing of reactive metal |
| 02/04/1992 | US5085691 Smelting carbon-containing semiproduct; tapping it into ladle; supplying slag-forming materials, reducer, and thermally pretreated oxide materials for alloying |