Patents
Patents for C21C 5 - Manufacture of carbon steel, e.g. plain mild steel, medium carbon steel, or cast-steel (14,381)
05/1980
05/20/1980CA1077721A1 Method for increasing the use of scrap and iron oxides by basic oxygen furnace
05/15/1980WO1980001000A1 Cooling of surfaces adjacent molten metal
05/13/1980CA1077266A1 Enclosure for steel converting apparatus
05/06/1980US4201572 Method for increasing the scrap melting capability of bottom blown processes
04/1980
04/30/1980EP0010535A1 Apparatus for sealing the taphole of a metallurgical vessel
04/29/1980US4200453 Treating with oxygen and lime to form a slag
04/29/1980US4200452 Passig a direct current through said melt
04/29/1980US4200263 Filling stand arrangement for a metallurgical ladle
04/29/1980CA1076360A1 Method and apparatus for continuous gasification, of solid and/or fluid carbon-containing and/or hydro-carbon-containing substances in molten iron in a reaction vessel
04/29/1980CA1076350A1 Enclosure for steel converting apparatus
04/22/1980US4199350 Method for the production of quality steels
04/22/1980CA1076180A1 Electric furnace waste heat recovery method and apparatus
04/22/1980CA1075897A1 Method and apparatus for producing steel from solid products high in iron
04/16/1980EP0010082A1 Device for sealing the tap hole of a metallurgical vessel
04/16/1980EP0010047A1 Process for treating waste gases of the iron and steel industry
04/16/1980EP0009585A1 Apparatus for conveying probes for attachment onto measuring or sampling lances in a metallurgical vessel
04/15/1980US4198230 Oxidizing gases surrounded by hydrocarbons
04/15/1980US4198035 Blowing lance media-supply arrangement
04/15/1980CA1075471A1 Method of treating molten slags in steel-making process
04/15/1980CA1075469A1 Process for pyrometallurgical recovery of iron from iron silicate slags
04/08/1980US4197116 Method and apparatus for automatically controlling the rate of flux injection to a converter
04/08/1980US4196894 Basic oxygen furnace and refractories therefor having improved thermal conductivity
04/08/1980CA1075009A1 Methods of decarburization in esr processing of superalloys
04/02/1980EP0009104A1 Method for increasing the scrap melting capability of bottom blown processes
04/01/1980US4196159 Process for increasing the life of the refractory masonry of metallurgical vessels
04/01/1980US4195985 Method of improvement of the heat-balance in the refining of steel
04/01/1980US4195824 Jig for tension elements for metallurgic vessels, particularly alternating converters
04/01/1980CA1074567A1 Method of continuously melting down scrap, iron sponge or the like
04/01/1980CA1074531A1 Method of producing a composition containing a large amount of vanadium and nitrogen
03/1980
03/25/1980US4194903 Method of producing steel with the lowest possible sulfur content by desulfurization of pig iron with magnesium coke
03/25/1980CA1074125A1 Reducing material for steel making
03/25/1980CA1074123A1 Methods of decarburization of molten esr slags and reduction of carbon pick up in corrosion resistant alloys
03/25/1980CA1074111A1 Removal and/or installation of top section of steelmaking vessel
03/18/1980CA1073987A1 Gas and smoke sensing service for converters
03/18/1980CA1073669A1 Cooling assembly for metallurgical vessels
03/11/1980US4192687 Lining materials
03/11/1980US4192675 Process for decarburizing ferro-manganese
03/11/1980US4192492 Device for fabrication of tapholes in metallurgical vessels
03/11/1980US4192490 Lance for injecting powdery material into molten metal
03/11/1980US4192486 Method for controlling exhaust gases in oxygen blown converter
03/11/1980CA1073188A1 Method for recovering argon as contained in the blowing gases coming from an a.o.d.-converter
03/05/1980EP0008463A1 Method for controlling the temperature of the melt during pneumatic refining of steel
03/04/1980US4191885 Adding a trace element
03/04/1980US4191364 Support for metallurgical vessels
02/1980
02/26/1980US4190435 Reducing oxide-rich slags
02/26/1980US4190238 Lance head for a fining lance
02/26/1980US4190237 Apparatus for treating refinery waste gases
02/20/1980EP0008030A1 Process for repairing the refractory lining of industrial furnaces and vessels used at high temperatures
02/19/1980CA1071862A1 Lance supporting and gyrating device in a steel-refining converter
02/12/1980US4188021 Metallurgical vessel cooling and safety system
02/12/1980CA1071400A1 Lining for a cup-shaped furnace bed
02/06/1980EP0007657A1 Method of providing and maintaining a wear-lining of a steel converter and a steel converter having such a lining
02/06/1980EP0007418A1 Device for supplying the tuyeres of a metallurgical vessel with gaseous and/or liquid hydrocarbons
02/05/1980US4187102 Fast and slow oxidizing elements
02/05/1980CA1070944A1 Tuyere for the injection of reaction gas
01/1980
01/29/1980US4185997 Oxidation, adjusting basicity by adding silica-containing material, cooling, solidifying
01/29/1980US4185499 Arrangement for monitoring an oil supply of a lubrication system to be used for heavy machinery
01/29/1980CA1070743A1 D.c. arc furnace
01/23/1980EP0007038A1 Coupling for connecting gas supply conduits to metallurgical vessels
01/22/1980US4185157 Apparatus for collecting and removing smoke and fumes from a melting furnace plant
01/22/1980US4184883 Aggregate particles and a cure accelerator
01/22/1980CA1070119A1 Steelmaking process
01/22/1980CA1070111A1 Tilting metallurgical vessel, especially a steel-plant converter
01/15/1980CA1070008A1 Method of and apparatus for monitoring slag depth in refining crucible
01/09/1980EP0006398A1 Method and apparatus for withdrawing fumes generated during the charging of a metallurgical vessel
01/08/1980CA1069301A1 Converter drive and bearing arrangement
12/1979
12/18/1979CA1068115A1 Method for steelmaking with direct current
12/12/1979EP0006084A1 Apparatus for collecting and withdrawing off-gases
12/11/1979US4178173 Decarbonization
12/11/1979US4178170 For use in electric furnaces
12/11/1979US4177975 Exhaust hood apparatus with tilting furnace
12/04/1979US4177061 Method for making iron-chromium alloys
12/04/1979CA1067293A1 Method for injecting a carbon-carrying powder in a metallic bath
12/04/1979CA1067292A1 Arc furnace steelmaking
11/1979
11/28/1979EP0005693A1 Conversion installation with a tiltable converter vessel
11/28/1979EP0005692A1 Conversion installation with a tiltable converter
11/28/1979EP0005506A1 Method for treating melts of pig iron and steel or steel alloys
11/27/1979US4175732 Melting of fine particulate material in a high-speed rotary furnace
11/27/1979CA1067126A1 Tilt and swing lock mechanism for electric furnace
11/20/1979CA1066504A1 Oxygen lance nozzle
11/13/1979CA1066087A1 Tilting moment measuring means for a metallurgical convertor
11/13/1979CA1066019A1 Collector apparatus for gaseous reaction products
11/06/1979US4173299 Electromagnetic valve with slag indicator
10/1979
10/17/1979EP0004693A1 Device for measuring the oxygen concentration of molten metals
10/17/1979EP0004614A1 Cooling system for a steel works converter.
10/17/1979EP0004613A1 Converter with a detachable floor
10/16/1979US4171276 Aqueous solution of alkylphenoxy polyethoxy ethanol and ethylene oxide-propylene oxide copolymer
10/09/1979CA1063807A1 Processes for steel making by oxygen refining of iron
10/02/1979US4169569 Base anchorage for heavy machinery
09/1979
09/25/1979US4168968 Melting, fuel oil combustion
09/25/1979US4168824 Enclosure for metallurgical vessels
09/19/1979EP0004004A1 Arrangement on a fume collecting chamber for a metallurgical vessel
09/18/1979US4168181 Wire manufacture
09/18/1979US4168177 Refractory gunning composition
09/18/1979CA1062463A1 Steel-smelting lance assembly
09/11/1979CA1062004A1 Method and apparatus for handling off-gases from metal refining vessel
08/1979
08/28/1979CA1061109A1 Closing a tap hole using compressed gas
08/21/1979US4165065 Lime removal from furnace surfaces
08/21/1979CA1060661A1 Continuous production of steel
08/08/1979EP0003357A1 Housing for receiving a metallurgical vessel