Patents for C21C 5 - Manufacture of carbon steel, e.g. plain mild steel, medium carbon steel, or cast-steel (14,381) |
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04/26/1995 | CN1028299C Method of making mud balls for dedusting steel-smelting converter |
04/25/1995 | US5410566 Method of producing metal melts and an electric arc furnace therefor |
04/25/1995 | US5410564 Direct current electric furnace for melting metal |
04/20/1995 | WO1995010929A1 Bottom electrode for a metallurgical vessel |
04/20/1995 | WO1995010634A1 Process and device for introducing gases into metal melts |
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 | EP0649270A1 Metallurgical vessel with a bottom electrode |
04/19/1995 | CN1101676A Technology of convertor discharging steel and double function blind plug of convertor discharging steel |
04/18/1995 | US5407461 Feeding gases to smelt below bath surface, wetting entire lining surface with smelt |
04/16/1995 | CA2118103A1 Metallurgical vessel with bottom electrode |
04/13/1995 | DE4435377A1 Metallurgical vessel |
04/13/1995 | DE4432924A1 Method for melting scrap metal and electric arc furnace for carrying out the method |
04/12/1995 | EP0647213A1 Use of a refractory ceramic compound for lining the floors of electric-arc furnaces and a method of repairing them |
04/12/1995 | CN2194364Y New type burner for spheroidite roaster |
04/12/1995 | CN1101381A Regenerating process for high-temp. alloy furnace pipes |
04/12/1995 | CN1101379A Wet dust-collecting process for fume |
04/11/1995 | US5406579 For a low pressure treating chamber |
04/05/1995 | EP0646758A1 Apparatus for preheating and supplying scraps |
04/05/1995 | EP0646757A1 Dc arc furnace |
04/05/1995 | EP0646652A1 Steel plant containing a closed tiltable arc furnace |
04/05/1995 | EP0646183A1 Process and device for blowing oxygen over metal melts |
04/05/1995 | CN1101078A A method for operating a multimedia tuyere and the tuyere system |
04/05/1995 | CN1028115C Electric furnace arrangement for producing steel |
04/04/1995 | US5402990 Steel making plant |
03/31/1995 | WO1995009336A1 Electric arc fusion furnace |
03/30/1995 | WO1995008650A1 Process and installation for repairing the lining of steelmaking converters |
03/30/1995 | CA2133025A1 Process and device for measuring the worn length of a nozzle |
03/29/1995 | EP0645601A1 Measuring procedure and device for the evolution of the ablation length of a tube |
03/28/1995 | US5400930 Slide gate valve having a cementless joint between the valve and a metallurgical vessel |
03/28/1995 | CA2028215C Direct current electric arc furnace |
03/22/1995 | EP0644269A1 Process for controlling the forming of an accretion on an oxy-fuel tuyere |
03/22/1995 | CN1100470A Steelmaking process |
03/21/1995 | US5400358 Continuous scrap preheating |
03/16/1995 | WO1995007365A1 Process for making steel and hydraulically active binders |
03/16/1995 | DE4410289C1 Gas flushing device for installation in the wall of metallurgical melting vessels |
03/16/1995 | CA2148226A1 Process for making steel and hydraulically active binders |
03/15/1995 | EP0643141A1 Method for producing reducible iron-containing material having less clustering during direct reduction and products thereof |
03/15/1995 | CN1100241A Improved power converter device for direct current power supply to an electric arc furnace |
03/15/1995 | CN1100145A Converter for the production of steel |
03/08/1995 | CN1099805A Melting furnace with gas injection |
03/07/1995 | US5395420 Using metal charge with specific carbon and silicon contents and blowing oxygen into slag with added limestone and carbon |
03/07/1995 | US5395095 Combined machine for opening and plugging a taphole in a shaft furnace |
02/23/1995 | WO1995005486A1 Composite charge for smelting steel |
02/22/1995 | EP0639750A1 Burner mounting device |
02/22/1995 | EP0639650A1 CO2 snow discharge apparatus |
02/21/1995 | US5392312 Method and device for regulating the combustion air flow rate of a flue rate gas collection device of a metallurgical reactor, corresponding collection device and metallurgical reactor |
02/20/1995 | CA2126116A1 Blended charge for steel production |
02/19/1995 | CA2130281A1 Co2 snow discharge apparatus |
02/16/1995 | WO1995004899A1 Process and device for the thermal destruction of waste |
02/14/1995 | US5390212 Installation for producing molten metal in an electric furnace |
02/14/1995 | US5388733 Slide gate valve having replaceable refractory valve plate assembly and method of replacing the same |
02/14/1995 | CA1334343C Molten metal sampling device |
02/09/1995 | DE4324528A1 Computing device for determining desulphurising additions for a steel melt containing desulphurising additions |
02/08/1995 | EP0637634A1 Process for producing a metal melt |
02/08/1995 | CN1098439A Smelting process of 2OMnSi hot-rolled screw-thread steel by using single slag method of electric arc furnace |
02/08/1995 | CN1027596C Tuyere arrangement for the introtion of agents into a molten bath and method of operating such a tuyere arrangement |
02/05/1995 | CA2129407A1 Process for producing a metal melt |
02/01/1995 | EP0636698A1 Process, installation and container for charging of preheated scrap to a steel melting furnace |
02/01/1995 | CN1027546C Technique for smelting waste metallic scrap into steel |
01/25/1995 | EP0635071A1 Process and device for preventing contamination of the tapping steel by flush slag in a tipping converter. |
01/25/1995 | EP0635070A1 Process for recycling dust collected during the production of steel in an electric arc furnace |
01/24/1995 | US5384735 Data output buffer of a semiconductor memory device |
01/18/1995 | CN1097506A Process and installation for the separation of air |
01/18/1995 | CN1027455C Device for automatic coupling of blowing-in lance to manifold |
01/17/1995 | US5382278 Pyrometallurgy, exchange reaction with iron oxide removes chromium to slag phase, recovering nickel and cobalt |
01/17/1995 | US5382003 Flow control device for the suppression of vortices |
01/12/1995 | WO1995001458A1 Steel manufacturing method using converter |
01/11/1995 | EP0633709A1 Operating process of a DC arcfurnace with a bottom electrode and refractory part for its realisation |
01/11/1995 | EP0633323A1 Spray cooled hood system for handling hot gases from a metallurgical vessel utilizing pneumatic processing of molten metal |
01/11/1995 | EP0633322A1 Process for making steel with low phosphorus content |
01/11/1995 | EP0493557B1 D.c arc furnace |
01/11/1995 | CN1097219A Spray cooled hood system for handling hot gases from a metallungical vessel utilizing pneumatic processing of molten metal |
01/10/1995 | US5381441 Direct current arc furnace and method for its operation |
01/10/1995 | US5381440 Bottom electrode for direct current arc furnaces |
01/10/1995 | CA1333846C Carbon dioxide snow handgun for metallurgy |
01/05/1995 | DE4321829A1 Hot-functioning metallurgical vessel |
01/04/1995 | EP0632291A2 Method for measuring wear in the lining of a container provided with a pivoted axle and an opening, and a container |
01/04/1995 | CN1027290C Top-blown oxygen revolving furnace steel making process and the oxygen gun theirof |
01/03/1995 | US5378261 Method for producing steel |
01/03/1995 | US5377960 Oxygen/carbon blowing lance assembly |
12/28/1994 | EP0630977A1 Converter for the production of steel |
12/28/1994 | CN1096823A Submerged-arc scum for steel chamber refinery furnace |
12/27/1994 | US5376161 Steel making process including transporting spong iron briquettes |
12/27/1994 | CA1333663C Method of decarburizing high cr molten metal |
12/22/1994 | CA2126148A1 Converter for the production of steel |
12/21/1994 | EP0629830A1 Installation for the production of liquid metal by scrap melting |
12/21/1994 | EP0629710A1 Process and installation for reduction of ores or prereduced metal-bearing products in molten state |
12/20/1994 | US5375139 Electric arc furnace insitu scrap preheating process |
12/20/1994 | US5374297 Lance for fuel and oxygen injection into smelting or refining furnace |
12/20/1994 | US5374296 Lance carriage |
12/16/1994 | CA2125821A1 Process and apparatus for smelting reduction of ores or pre-reduced metal carriers |
12/14/1994 | EP0628086A1 Tilting device for a direct current arc furnace and process for emptying the furnace. |
12/14/1994 | CN1096369A Probennehmer |
12/13/1994 | US5373530 Melting furnace with gas injection |
12/08/1994 | WO1994023864A3 Slide gate valve having replaceable refractory valve plate assembly and method of replacing the same |
12/07/1994 | EP0627870A2 Method for triggering/regulating at least two parallel resonant circuit converters |
12/07/1994 | EP0627493A1 Process and installation for preheating of scrap |
12/07/1994 | EP0627492A1 Smelting furnace with gas injector |
12/07/1994 | CN2184700Y Multi-hole oxygen gun jet for casting |