| Patents for C22B 9 - General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals (7,765) |
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| 01/09/1991 | EP0407021A1 Method and means of reducing the oxidation of reactive elements in an electroslag remelting operation |
| 01/09/1991 | EP0406638A1 Gamma Titanium aluminum alloys modified by chromium and tantalum and method of peparation |
| 01/09/1991 | CN1048415A Iron-,cobalt-and nickel-based alloys having lower content of sulfur, oxygen and nitrogen |
| 01/08/1991 | US4983219 Technique for forming silicon carbide coated porous filters |
| 01/08/1991 | US4983216 Removal of salt and skim layers |
| 01/06/1991 | CA2017470A1 Process for reducing contamination of high temperature melts |
| 01/03/1991 | CA2016194A1 Method and means of reducing the oxidation of reactive elements in an electroslag remelting operation |
| 01/02/1991 | EP0405134A1 Gamma titanium aluminum alloys modified by chromium and silicon and method of preparation |
| 01/01/1991 | US4982410 Plasma arc furnace with variable path transferred arc |
| 01/01/1991 | US4981598 Metal sorption method using interstage screening |
| 01/01/1991 | US4981045 Testing of liquid melts and probes for use in such testing |
| 12/19/1990 | EP0403413A1 Procedure and device for measuring the instability of an arc in an electric furnace for the treatment of liquid metals |
| 12/18/1990 | US4979182 Device for positioning and melting electrically conductive materials without a receptacle |
| 12/18/1990 | US4978108 Gas washing sink without integral closure member |
| 12/15/1990 | CA2019008A1 Process and apparatus for measuring the instability of an arc in an electric furnace used for molten metal treatment |
| 12/13/1990 | WO1990015163A1 Closed remelting furnace with a plurality of horizontally mobile bottom elements |
| 12/12/1990 | EP0273947B1 Improvements in nozzles for injecting substances into liquids |
| 12/05/1990 | EP0400925A2 Process and apparatus for melting contaminated metalliferous scrap material |
| 12/04/1990 | US4975191 Slurry of silicon carbide and colloidal silica binder |
| 12/04/1990 | CA1277138C Method of assembling a gas circulation block provided for metallurgical vessels |
| 11/29/1990 | WO1990014568A1 Process and device for smelting metals in cupola furnaces run without coke |
| 11/28/1990 | EP0399928A1 Cold crucible with bottom emptying |
| 11/27/1990 | US4973818 Device and method for the control and monitoring of an electron beam for metal working |
| 11/20/1990 | CA1276471C Process and lance for the production of a bath of molten metal or alloys |
| 11/15/1990 | WO1990013382A1 Treatment of melts in a ladle and apparatus for such treatment |
| 11/15/1990 | DE4014835A1 Oxidn. treatment of liq. metal baths to remove impurities - using oxidising flush gas contg. carbon di:oxide to control produced heat |
| 11/15/1990 | CA2010792A1 Method and apparatus for adjusting electrode isotherms within electro-slag remelting |
| 11/14/1990 | EP0397565A1 Method for separation of inclusions in metals by remelting |
| 11/14/1990 | EP0397486A1 Method and apparatus for removing non-metallic inclusions in molten metal |
| 11/07/1990 | EP0396389A1 Production of aluminum master alloy rod |
| 11/07/1990 | EP0396267A1 Method and apparatus for the treatment of molten metals |
| 11/07/1990 | CN1046764A Smog inhibitor for liquid lead and zinc |
| 11/06/1990 | US4968346 Nonexplosive, efficient |
| 11/06/1990 | CA1275811C Process for producing high purity zirconium and hafnium |
| 11/05/1990 | CA2015341A1 Method and apparatus for the treatment of molten metals |
| 11/01/1990 | WO1990012895A1 Gas injector |
| 10/31/1990 | EP0395138A1 Device for the purification of molten metal, in particular aluminium |
| 10/31/1990 | CN1010222B Post-mix method and system for supply of powderized materials |
| 10/25/1990 | DE3912928A1 Enclosed electroslag remelting furnace - with upper and lower part and movable valve disc |
| 10/24/1990 | EP0394214A1 Plants to be used for metallurgical treatments of metals, metal compounds and/or metal alloys or for producing calcium carbide |
| 10/24/1990 | CN1010106B Improvements in apparatus for injecting substances into liquids |
| 10/24/1990 | CN1010105B Method of producing an iron-, cobalt-and nickel-base alloy having low contents of sulphur, oxygen and nitrogen |
| 10/23/1990 | US4964993 Multiple-use molten metal filters |
| 10/23/1990 | US4964973 Method and apparatus for producing titanium |
| 10/17/1990 | EP0392900A1 Process and apparatus for the treatment of a liquid with a gas |
| 10/17/1990 | EP0392875A1 Method for separating dissolved species by electrodialysis |
| 10/17/1990 | CN1010032B Immersion combustion in melt substance |
| 10/13/1990 | CA2013780A1 Plant to be used for metallurgical treatments of metal compounds and/or metal alloys for producing calcium carbide |
| 10/09/1990 | US4961776 Cold hearth refining |
| 10/04/1990 | WO1990011379A1 Method and installation for processing scrap of aluminium and of its alloys |
| 10/03/1990 | EP0390742A1 Arrangement and method for the filtration of molten metals |
| 09/30/1990 | CA2012828A1 Molten metal filtration system and process |
| 09/26/1990 | CN1009758B Cold hearth melting configuration and method |
| 09/25/1990 | US4959841 Process for reducing contamination of high temperature melts |
| 09/25/1990 | US4958809 Liquid metal launder |
| 09/19/1990 | EP0388010A1 Filters for light metals |
| 09/19/1990 | EP0388004A1 Molten metal pump with filter |
| 09/19/1990 | EP0387337A1 Process for producing high purity magnesium |
| 09/18/1990 | US4958358 Apparatus for the thermal treatment of a metallic melt |
| 09/18/1990 | US4957542 Dehydrogenation, decarbonization, nitriding |
| 09/12/1990 | EP0233872B1 Method for the treatment of metals and alloys for the refining thereof |
| 09/12/1990 | CN1045277A Vacuum induction remelting method for producing isometric fine crystal ingots |
| 09/05/1990 | EP0385617A1 Injecting gas into molten metal |
| 09/05/1990 | EP0384987A1 Method and apparatus for continuously heating and melting material |
| 09/04/1990 | US4954167 Dispersing gas into molten metal |
| 08/29/1990 | EP0258326B1 Device for degassing molten metals |
| 08/28/1990 | US4953177 Method and means of reducing the oxidization of reactive elements in an electroslag remelting operation |
| 08/23/1990 | CA2009272A1 Filters for light metals |
| 08/21/1990 | US4951298 Closed remelting furnace having several horizontally movable furnace lower portions |
| 08/17/1990 | CA2010235A1 Injecting gas into molten metal |
| 08/15/1990 | CN1009208B Injection of substances into high temp. liquids |
| 08/14/1990 | US4948423 Vacuum induction melting in high density, high purity graphite crucible |
| 08/14/1990 | US4948102 Method of preparing high-purity metal and rotary cooling member for use in apparatus therefor |
| 08/08/1990 | CN1044500A Less energy-consumption process for producing fine crystal ingot by resmelting of electric-furnace-slag |
| 07/31/1990 | US4944798 Method of manufacturing clean steel |
| 07/31/1990 | US4944496 Apparatus for injecting gas into high temperature liquids, e.g. molten metals |
| 07/31/1990 | CA1272033A1 Process and device for lithium purification |
| 07/27/1990 | WO1990008843A1 Direct smelting process |
| 07/26/1990 | DE3935156C1 Injection system for treating molten metal - by injection of mixt. of gas and solid particles using telescopically arranged lances |
| 07/25/1990 | EP0378764A1 Electro-slag-refinining installation containing a mould and a cover |
| 07/24/1990 | CA1271977A1 Cold hearth melting configuration and method |
| 07/18/1990 | EP0377597A1 Process and device for minimizing process gas consumption in metallurgical processes |
| 07/11/1990 | CN1043749A Method for charging rare-earth oxide dregs into cupola furnace |
| 07/11/1990 | CN1008729B Bubble-like ceramic filtering device for filtering liqud metal and its preparation process |
| 07/11/1990 | CA2007450A1 Ceramic filter for the filtering of molten metals |
| 07/10/1990 | US4940489 Molten metal filtration system and process |
| 07/10/1990 | US4940486 Direct current, plasma, electron flow, refining, alloying |
| 07/10/1990 | US4940384 Molten metal pump with filter |
| 07/04/1990 | EP0376523A1 Purifying molten metal |
| 07/04/1990 | EP0376142A1 Gas-flushing installation |
| 06/28/1990 | DE3841519A1 Cold trap with rotating magnetic field |
| 06/27/1990 | EP0375657A1 Melting furnace |
| 06/27/1990 | CN1008541B Improvements in nozzles for injecting substances into liquids |
| 06/22/1990 | CA2006112A1 Injection device |
| 06/13/1990 | EP0372057A1 Depressant for flotation separation of polymetallic sulphidic ores |
| 06/13/1990 | CN1042946A Process and device for production of refined aluminium |
| 06/13/1990 | CN1008378B Injection tube for fibred material |
| 06/12/1990 | US4932635 Cold hearth refining apparatus |
| 06/12/1990 | CA1270111A1 Method of and apparatus for treating and subdividing a liquid using centripetal force |
| 06/05/1990 | US4931091 Treatment of molten light metals and apparatus |