| Patents for C21C 7 - Treating molten ferrous alloys, e.g. steel, not covered by groups (11,430) |
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| 06/05/1996 | EP0714451A1 Method for the disposal/recycling of gas cylinders containing filling material |
| 06/05/1996 | EP0714330A1 Purifying molten metal |
| 05/30/1996 | WO1996016190A1 Process and device for blowing oxygen-containing gas with and without solid material on a metal melt in a metallurgical vessel, especially an rh vessel |
| 05/28/1996 | US5520718 Carbon dioxide lift gas |
| 05/28/1996 | US5520373 Steelmaking degassing apparatus |
| 05/28/1996 | CA2073811C Plug for molten metal refining vessel |
| 05/23/1996 | DE19511640C1 Rüssel für ein Entgasungsgefäß Trunk for a degassing vessel |
| 05/22/1996 | CN2227666Y Lifting device |
| 05/21/1996 | CA2092716C Device for installing and removing gas purging plugs for metallurgical vessels |
| 05/15/1996 | CN1122375A Method and apparatus for an improved steel strap |
| 05/07/1996 | US5514331 Method and device for producing stainless steel |
| 05/01/1996 | EP0709469A1 Method of producing molten aluminium-killed steel for thin steel sheet |
| 05/01/1996 | EP0489167B1 Method of manufacturing tube filled with powder and granular material |
| 04/24/1996 | CN1121114A Slag covering agent for oxygen top-blown convertor and its production method |
| 04/23/1996 | CA1338254C Fluidizing a lime-silica slag |
| 04/18/1996 | DE4442362C1 Method and appts. for performing a variety of processes on a melt using standard equipment |
| 04/17/1996 | EP0707080A1 Method of manufacturing low carbon molten steel by vacuum degasification and decarbonization |
| 04/09/1996 | US5505052 Distilling air in distillation apparatus having heat exchange line in which heat transfer fluid is circulated at pressure greater than operating pressure of apparatus, storing constituent of argon in liquid phase, vaporizing argon |
| 03/28/1996 | WO1996009414A1 A method of adapting the amounts of additives such as deoxidizers and/or alloying elements |
| 03/21/1996 | WO1996008328A1 Temperature increasing agent and temperature increasing method |
| 03/21/1996 | DE4433511A1 Prodn of steel from pig iron in converter |
| 03/06/1996 | EP0699769A1 Process for the manufacture of steel having deep-drawing properties and steel according to said process |
| 03/06/1996 | CN1118017A Silicon-aluminium-barium alloy for steel-making and producing method thereof |
| 02/14/1996 | EP0696645A1 Method of manufacturing steel containing Ca |
| 02/08/1996 | WO1996003530A1 Gas flushing device in the blowpipe of a vacuum degassing vessel |
| 02/07/1996 | CN1116241A Producing technology of low hydrogen high nitrogen steel |
| 02/01/1996 | DE19511557A1 Gas scavenging arrangement for degassing molten metals |
| 01/31/1996 | EP0653146B1 Electrode holder |
| 01/31/1996 | CN2218749Y Multiple hole argon blowing lance for steel making |
| 01/31/1996 | CN1115788A Molten iron desulphurizer |
| 01/16/1996 | CA2128187A1 Process for treating molten metals, in particular molten steel, with a refining agent |
| 01/16/1996 | CA1337920C Process for detecting outflow of slag |
| 01/10/1996 | EP0691411A1 Process for the continuous refining of metal and a facility for carrying out said process |
| 01/10/1996 | EP0691410A1 Additive for treating molten metal, in particular for treating molten iron or steel |
| 01/03/1996 | EP0690137A2 Method of decarburizing refining molten steel containing Cr |
| 01/03/1996 | CN1030617C Al-Fe alloy for deoxidizing of Al killed steel and preparing process thereof |
| 01/02/1996 | US5480127 Apparatus for the melting and treatment of metal |
| 01/02/1996 | CA1337846C Process for vacuum degassing and decarbonization with temperature drop compensating feature |
| 12/28/1995 | WO1995035394A1 Method for producing steel |
| 12/27/1995 | EP0688877A1 Process for producing low-carbon chromium-containing steel |
| 12/26/1995 | US5479434 Double-hearth arc furnace for preheating scrap material and method of operating the same |
| 12/20/1995 | CN1113660A Steel containing ultrafine oxide inclusions dispersed therein |
| 12/20/1995 | CN1030532C Process for metallurgy of iron and steel with aluminum cinder |
| 12/19/1995 | CA2073219C Refractory for gas blowing for molten metal refining vessel |
| 12/19/1995 | CA1337744C Method for cleaning molten metal and apparatus therefor |
| 12/06/1995 | EP0685000A1 Method and apparatus for slag free casting |
| 12/05/1995 | US5472479 Method of making ultra-low carbon and sulfur steel |
| 11/30/1995 | WO1995032312A1 Method and apparatus for refining molten metal |
| 11/30/1995 | DE4418145A1 Pipe duct for conveying solids, |
| 11/29/1995 | EP0684319A1 Steel strap |
| 11/29/1995 | CN2213734Y Steel cover type oxygen gun for temp. rising device |
| 11/28/1995 | CA2031106C Sulfur treatment of magnesium-contaminated fe-cr-al alloy for improved whisker growth |
| 11/14/1995 | US5467366 Electrode system |
| 11/14/1995 | US5466363 Integrated process for hydrotreating heavy oil, then manufacturing an alloy or steel using a carbon-based catalyst |
| 11/14/1995 | US5466275 Method and apparatus for desulphurizing iron with minimal slag formation |
| 11/14/1995 | US5465943 Bottom or wall structure for a metallurgical vessel |
| 11/14/1995 | US5465942 Tuyere arrangement for the introduction of agents into a molten bath and method of operating such a tuyere arrangement |
| 11/08/1995 | EP0680521A1 Engineering ferrous metals, in particular cast iron and steel |
| 11/07/1995 | CA1337499C Gas flushing brick |
| 11/02/1995 | WO1995029137A1 Metallurgical furnace vacuum slag removal |
| 11/01/1995 | CN1110990A Smelting additives and its application in smelting process |
| 10/31/1995 | US5462579 Blowing oxygen gas on surface of melt from above and injecting a mixed gas from the bottom |
| 10/31/1995 | US5462260 Device for inserting a lance into a pressurized container, in particular a blast furnace |
| 10/25/1995 | EP0678584A1 Installation for gas flushing in the wall of a metallurgical vessel |
| 10/12/1995 | WO1995027084A1 Base electrode of a dc-heated metallurgical vessel |
| 10/10/1995 | CA2010356C Method for manufacturing molten metal containing ni and cr |
| 10/05/1995 | DE4411591A1 Bodenelektrode eines mit Gleichstrom beheizten metallurgischen Gefäßes Bottom electrode of a heated with direct current metallurgical vessel |
| 10/04/1995 | EP0674719A1 Vacuum installation, in particular for recycling metallurgy |
| 10/03/1995 | US5454854 Degassing; gas is blown into a molten metal or alloy, stirring with electromagnetic force to superimpose blown gas |
| 09/28/1995 | DE4405198A1 Decarburising and degassing of steel melts in converter |
| 09/27/1995 | EP0673442A1 Flow control device for the suppression of vortices |
| 09/26/1995 | CA2006351C Purifying molten metal |
| 09/20/1995 | EP0672881A1 Melting furnace having preheating vessel |
| 09/20/1995 | CN1108698A Process and unit for supplying a gas under pressure to an installation that consumes a constituent of air |
| 09/14/1995 | DE4446718A1 Scrap preheating in an electric arc double furnace |
| 09/06/1995 | CN1107894A Argon jetting method for smelting steel |
| 08/22/1995 | US5443699 Method for refining molten metals and recovering metals from slags |
| 08/22/1995 | CA1336747C Process for producing high cleaness extra low carbon steel |
| 08/17/1995 | DE4404313A1 Method and plant for melting and treating metals |
| 08/15/1995 | US5441578 Remelting ingots under an electroconductive slag |
| 08/10/1995 | WO1995021273A1 Gas treatment of molten metals |
| 08/09/1995 | EP0666331A1 Steel containing ultrafine oxide inclusions dispersed therein |
| 08/08/1995 | CA1336550C Corrosion resistance alloys |
| 08/02/1995 | EP0665295A1 Method of making ultra-low carbon and sulfur steel |
| 07/27/1995 | WO1995020057A1 Process for the vacuum refining of metal and associated device |
| 07/27/1995 | CA2130783A1 Making ultra-low carbon and sulfur steel |
| 07/26/1995 | CN1105752A Combined installation of a metal production unit and a unit for the separation air gas |
| 07/26/1995 | CN1029371C Process for preparing high effective active lime powder for jet metallurgical process |
| 07/25/1995 | US5435527 Apparatus for the late introduction of particulate alloy when casting a liquid metal |
| 07/20/1995 | DE4401244A1 Decarburising steel melts in reduced time |
| 07/19/1995 | EP0663449A1 Method of making high nitrogen content steel |
| 07/05/1995 | EP0660880A1 A method of promoting the decarburization reaction in a vacuum refining furnace |
| 07/04/1995 | CA1336136C Process for feeding heat energy into a molten metal bath |
| 06/29/1995 | WO1995017528A1 A method of processing ferrous materials |
| 06/27/1995 | US5427635 Martenstitic stainless steel with improved machinability |
| 06/21/1995 | EP0658631A1 Process and installation for adding of at least one alloying component, in particular lead, to a flowing molten metal |
| 06/20/1995 | US5425797 Blended charge for steel production |
| 06/13/1995 | US5425047 Closed induction furnace with a tilting apparatus |
| 06/07/1995 | WO1995018238A1 Process for the continuous refining of metal and a facility for carrying out said process |
| 06/06/1995 | US5421920 Process for producing rolled shape steel material having high strength, high toughness, and excellent fire resistance |