| Patents for C21C 7 - Treating molten ferrous alloys, e.g. steel, not covered by groups (11,430) |
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| 06/03/1995 | CA2110567A1 Process for using foamed slag in stainless steel production |
| 05/30/1995 | CA1335695C Mixing process in steel ladle with carbon dioxide |
| 05/23/1995 | US5417740 Method for producing steel |
| 05/23/1995 | US5417739 Blowing oxygen in molten iron for decarbonization then blowing nitrogen into melt |
| 05/17/1995 | EP0653599A1 Combined installation of a metal production unit and a separation unit of gases from air |
| 05/17/1995 | EP0653146A1 Electrode holder. |
| 05/17/1995 | CN1028437C Formula for producing silica-alumina iron by use of ore-heating method and prodn. process thereof |
| 05/10/1995 | EP0652296A1 Method of and apparatus for manufacturing medium and low carbon ferromanganese |
| 05/09/1995 | US5413623 Top blow lance |
| 05/09/1995 | US5413315 Injection equipment |
| 05/03/1995 | EP0651591A2 Electrode system |
| 05/03/1995 | EP0190313B2 Method and apparatus for continuous steelmaking |
| 04/26/1995 | EP0649478A1 Method for producing steel |
| 04/26/1995 | CN2195746Y Safety energy saving oxygen-blown gun for electric-arc furnace |
| 04/26/1995 | CN1028299C Method of making mud balls for dedusting steel-smelting converter |
| 04/20/1995 | WO1995010377A1 Method of adjusting the composition of a molten metal such as steel, and plant for implementation thereof |
| 04/20/1995 | CA2174109A1 Method of adjusting the composition of a molten metal such as steel, and plant for implementation thereof |
| 04/19/1995 | CN2195077Y Oxygen lance for blowing hot material in steel-smelting furnace |
| 04/18/1995 | US5407459 Reacting calcium oxide with slag |
| 04/12/1995 | CN1101381A Regenerating process for high-temp. alloy furnace pipes |
| 04/05/1995 | EP0646184A1 Improved method of desulfurization in vacuum processing of steel |
| 04/05/1995 | EP0646183A1 Process and device for blowing oxygen over metal melts |
| 03/30/1995 | WO1995008516A1 Process for the preparation of calcium aluminates from aluminum dross residues |
| 03/16/1995 | DE4410289C1 Gas flushing device for installation in the wall of metallurgical melting vessels |
| 03/15/1995 | CN1027906C Complexing agent for purifying molten steel and its use method |
| 03/14/1995 | US5397379 Process and additive for the ladle refining of steel |
| 03/14/1995 | US5397105 Tundish nozzle assembly block with elevated and slanted opening |
| 03/09/1995 | WO1995006534A1 Purifying molten metal |
| 03/09/1995 | CA2170530A1 Purifying molten metal |
| 03/08/1995 | CN1099805A Melting furnace with gas injection |
| 03/08/1995 | CN1027820C Process for treatment of steel-mill slag installation for earrying it out and slag obtained by process |
| 03/02/1995 | WO1995006139A1 Method for the disposal/recycling of gas cylinders containing filling material |
| 02/23/1995 | WO1995005492A1 Steel containing ultrafine oxide inclusions dispersed therein |
| 02/23/1995 | DE4328045A1 Verfahren zum Entkohlen von kohlenstoffhaltigen Metallschmelzen A method of decarburization of carbon-containing molten metal |
| 02/22/1995 | EP0639650A1 CO2 snow discharge apparatus |
| 02/22/1995 | CN1027701C Deoxidising agent for manufacture of steel with converters |
| 02/19/1995 | CA2130281A1 Co2 snow discharge apparatus |
| 02/09/1995 | DE4324528A1 Computing device for determining desulphurising additions for a steel melt containing desulphurising additions |
| 02/08/1995 | CN1098441A Method for producing particle agglomerate for steel-smelting by oxygen converter damp dust |
| 02/08/1995 | CN1027596C Tuyere arrangement for the introtion of agents into a molten bath and method of operating such a tuyere arrangement |
| 02/01/1995 | EP0636441A1 Tundish nozzle assembly block |
| 01/26/1995 | DE4324494A1 Method of treating cast-iron melts |
| 01/25/1995 | CN1097809A Method for smelting extremely low silicon high silicon stainless steel |
| 01/25/1995 | CN1097808A Silicon-barium-strontium-iron alloy used as steel liquid deoxidizing agent and its preparing method |
| 01/18/1995 | CN1097470A Magnesium-based alloy bar cladded by iron sheet and its manufacture and application |
| 01/17/1995 | US5382003 Flow control device for the suppression of vortices |
| 01/12/1995 | WO1995001458A1 Steel manufacturing method using converter |
| 01/10/1995 | CA1333846C Carbon dioxide snow handgun for metallurgy |
| 01/03/1995 | US5378261 Method for producing steel |
| 01/03/1995 | US5377960 Oxygen/carbon blowing lance assembly |
| 12/27/1994 | US5376160 Metal wire with core filling containing organic polymer which releases gas at melt temperature |
| 12/27/1994 | CA1333663C Method of decarburizing high cr molten metal |
| 12/22/1994 | WO1994029488A1 Method of manufacturing low carbon molten steel by vacuum degasification and decarbonization |
| 12/21/1994 | EP0629714A1 Martensitic stainless steel with improved machinability |
| 12/20/1994 | US5374297 Lance for fuel and oxygen injection into smelting or refining furnace |
| 12/20/1994 | CA1333527C Method and apparatus for adding shot to molten steel |
| 12/14/1994 | EP0628778A1 Process and high pressure gas supply unit for an air constituent consuming installation |
| 12/13/1994 | US5373530 Melting furnace with gas injection |
| 12/08/1994 | WO1994028186A1 Additive for iron-based materials |
| 12/07/1994 | EP0627492A1 Smelting furnace with gas injector |
| 12/03/1994 | CA2124776A1 Gas injector load smelting furnace |
| 11/30/1994 | EP0626547A1 Process and installation for the liquid steel production from carbon-rich ferruginous material |
| 11/30/1994 | EP0548117B1 Device for inserting and removing stopper bricks for metallurgical vessels |
| 11/30/1994 | EP0411061B1 Fe-Mn-Al-C ALLOYS AND THEIR TREATMENT |
| 11/30/1994 | CN1095763A Induction furnace refining unit using cylinder type vacuum chamber |
| 11/30/1994 | CN1095762A Iron and steel smelting process by using aluminium slag |
| 11/24/1994 | WO1994026937A1 A method of controlling the temperature of the bath in a converter |
| 11/23/1994 | EP0424502B1 Gas injector |
| 11/22/1994 | US5366537 Interposing inert gas between carbonaceous material and oxygen |
| 11/22/1994 | US5366535 Fluxes |
| 11/19/1994 | WO1994026946A1 Method of and apparatus for manufacturing medium and low carbon ferromanganese |
| 11/19/1994 | CA2132337A1 Method and apparatus for manufacturing medium or low carbon ferromanganese |
| 10/27/1994 | DE4313385A1 Method and device for measuring the throughput of a flowing material |
| 10/26/1994 | CN2180648Y Automatic fire-stopping gun for preventing back fire of blowing oxygen and explosion |
| 10/19/1994 | EP0620285A1 Injection equipment |
| 10/18/1994 | US5356456 Method of degassing and decarburizing stainless molten steel |
| 10/12/1994 | CN1093413A Al-Fe alloy using for aluminum steel deoxidation and method for prepn. of same |
| 10/05/1994 | CN1093112A Processing technology for microcarbon ferrosilicon |
| 10/04/1994 | US5352271 Coextrusion of core and sheath |
| 09/27/1994 | US5350434 Process and apparatus for making molten steel |
| 09/20/1994 | US5348275 Tundish nozzle assembly block |
| 09/15/1994 | WO1994020643A1 Snorkel for a metallurgical recirculatory vacuum degassing system |
| 09/15/1994 | DE4042468C2 Apparatus for heating molten metal in a casting ladle (pouring ladle) |
| 09/14/1994 | CN1092003A Mould-casting compound slag without carburation |
| 09/07/1994 | EP0613957A1 Process for manufacturing magnetic steel sheets |
| 09/01/1994 | WO1994019498A1 Method and apparatus for slag free casting |
| 09/01/1994 | WO1994019496A1 Insulating/metallurgical composite and method of manufacturing same |
| 08/17/1994 | EP0560834B1 Bottom or wall structure for a metallurgical vessel |
| 08/09/1994 | US5336339 Refractory shape steel material containing oxide and process for proucing rolled shape steel of said material |
| 08/02/1994 | US5333843 Device for installing and removing gas purging plugs for metallurgical vessels |
| 07/26/1994 | US5332417 Method for decarburisation of steel in a vacuum treatment chamber and vacuum treatment chamber for implementing the method |
| 07/21/1994 | WO1994016122A1 Method for refining molten metals and recovering metals from slags |
| 07/20/1994 | EP0474703B1 Manufacture of ferroalloys using a molten bath reactor |
| 07/13/1994 | CN1025438C Process for top and bottom blowing smelting stainless steel in electric-arc furnace |
| 07/12/1994 | US5328658 Decarburization molten steel with blowing gas, reducing chromium oxides and depressurization |
| 07/07/1994 | WO1994014984A1 Vacuum installation, in particular for recycling metallurgy |
| 07/06/1994 | CN1025352C Si-Al-Ba-Sr-Fe alloy for deoxidisation of steel and its preparing method |
| 07/05/1994 | US5327357 Method of decarburizing molten metal in the refining of steel using neural networks |
| 07/05/1994 | US5326737 Cerium oxide solutions for the desulfurization of gases |
| 06/29/1994 | CN2170308Y Assembled center water-cooling oxygen blow head |