| 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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| 04/13/2000 | WO2000020815A1 Method for feeding fines or granules into a light-arc furnace |
| 04/13/2000 | WO2000020650A1 Direct-current arc furnace comprising a centric charging shaft for producing steel and a method therefor |
| 04/13/2000 | WO2000020649A1 Converter process and device with electromagnetic stirrer |
| 04/13/2000 | DE19848295A1 Process for transporting heavy loads, e.g. for exchanging steel mill converters using a vehicle to move the load to an operating station |
| 04/13/2000 | DE19846524A1 Flushing stone used in the refractory wall of a metallurgical vessel has a seam formed between an outer stone and an inner stone |
| 04/13/2000 | DE19846100A1 Gleichstromlichtbogenofen zur Herstellung von Stahl sowie Verfahren hierzu DC arc furnace for producing steel and method therefor |
| 04/13/2000 | CA2346770A1 Direct-current arc furnace comprising a centric charging shaft for producing steel and a method therefor |
| 04/12/2000 | EP0991784A1 Loading system for electric arc furnaces |
| 04/12/2000 | EP0915992B1 A process for the direct production of cast iron from iron bearing ore, and an apparatus suitable to carry out said process |
| 04/12/2000 | CN2373456Y Converter oxygen lance |
| 04/12/2000 | CN1051368C Bottom electrode of DE arc furnace |
| 04/11/2000 | US6049559 Method of refining metal to high degree of purity and high-frequency vacuum induction melting apparatus |
| 04/06/2000 | WO2000018700A1 Unburned carbon-containing refractory material and vessel for molten metal |
| 04/06/2000 | DE19900123A1 Processing apparatus of waste gas from smelter |
| 04/05/2000 | EP0990053A1 Process and plant for producing iron smelt in an electric arc furnace by using agglomerated, iron-containing steel work residues |
| 04/05/2000 | CN2372326Y Die forging combined type oxygen gun blow head |
| 04/05/2000 | CN2372325Y Digital display piston detector |
| 04/05/2000 | CN1051149C DC electric arc furnace |
| 03/30/2000 | WO2000017590A1 Apparatus and method for tapping a furnace |
| 03/29/2000 | EP0988259A1 Process for making expanded slag |
| 03/29/2000 | CN1248500A Method for producing refractory material mould by utilizing industrial refuse |
| 03/29/2000 | CN1050912C Method and apparatus for measuring displacement of molten metal |
| 03/22/2000 | EP0963449A4 Electric furnace with insulated electrodes and process for producing molten metals |
| 03/22/2000 | EP0714989B1 Steel manufacturing method using converter dephosphorisation |
| 03/22/2000 | CN2370016Y Lift beam for step heating furnace |
| 03/22/2000 | CN2370015Y Open type top-blown converter |
| 03/22/2000 | CN1247901A Combined iron direct-reducing system |
| 03/22/2000 | CN1050634C Production of foundry iron |
| 03/21/2000 | US6039787 Reacting molten slag with metal bath in oxygen stream, injecting inert gas |
| 03/21/2000 | US6039786 Process for melting a metal charge in a rotary furnace and rotary furnace for implementing such a process |
| 03/16/2000 | WO2000014287A1 Method for the production of a bulk of molten metal, a metallurgical product, and use of such a product |
| 03/16/2000 | WO2000014285A1 A direct smelting process |
| 03/15/2000 | EP0985735A1 Integrated directly reduced iron production and power generation |
| 03/15/2000 | CN1247574A Method for recycling iron bearing sludges in steelmaking operation |
| 03/15/2000 | CN1050387C Method for making Ni alloyed iron or nickel alloyed steel |
| 03/14/2000 | US6038245 Process for melting a charge in an electrical arc furnace |
| 03/14/2000 | US6036914 Dumping bay with fume collecting provisions |
| 03/09/2000 | WO2000012767A1 Method for producing a metal melt and corresponding multfunction lance |
| 03/09/2000 | WO2000012766A1 A process and an apparatus for producing metals and metal alloys |
| 03/09/2000 | DE19827299C1 Verfahren und Vorrichtung zur Stahlerzeugung in einem Ofengefäß Method and apparatus for producing steel in a furnace vessel |
| 03/08/2000 | EP0984072A1 Oxide dispersion steel |
| 03/08/2000 | EP0868537B1 Method for determination and control of the amount of nitrogen dissolved in metalic liquid phases and device for its realization |
| 03/07/2000 | US6033621 Oxygen lance head for treating molten masses |
| 03/07/2000 | CA1340922C Method of producing stainless molten steel by smelting reduction |
| 03/02/2000 | WO2000011494A1 Measuring the thickness of materials |
| 03/02/2000 | WO2000011226A1 Söderberg-type composite electrode for arc smelting furnace |
| 03/01/2000 | EP0982407A1 Process for melting inorganic substances |
| 03/01/2000 | EP0894033B1 Gas-flushing bottom for metallurgical vessels |
| 03/01/2000 | CN2366421Y Converter oxygen lance slag scraper |
| 03/01/2000 | CN2366420Y Nozzle of oxygen lance for large scale converter |
| 03/01/2000 | CN1246160A Refractory wall, metallurgical vessel comprising such refractory wall and method in which such refractory wall is applied |
| 03/01/2000 | CN1246159A Producing iron from solid iron carbide |
| 03/01/2000 | CN1245833A Short flow-process electric arc furnace steel plant |
| 02/29/2000 | US6031861 Electrode and cooling element for a metallurgical vessel |
| 02/29/2000 | US6030431 Method for an improved energy input into a scrap bulk |
| 02/29/2000 | US6030430 Blast furnace with narrowed top section and method of using |
| 02/24/2000 | WO2000009962A1 Smelting unit with charge pre-heater |
| 02/24/2000 | WO2000009767A1 Tapered probe for mold level control |
| 02/23/2000 | CN2365228Y Antileakage converter temperature measuring sampling gun |
| 02/22/2000 | US6026997 Stopper rod |
| 02/16/2000 | CN2364053Y Oxygen lance mouth seal device |
| 02/16/2000 | CN2364051Y Slag granulating device for converter steelmaking |
| 02/15/2000 | US6026113 Method for the electromagnetic stirring of the liquid metal in electric arc furnaces and relative device |
| 02/15/2000 | US6024912 Novel preheating apparatus and method for preheating a ferrous scrap mixture prior to feeding the scrap into a metallurgical furnace |
| 02/10/2000 | WO2000006783A1 A direct smelting process |
| 02/10/2000 | WO2000006782A1 A direct smelting process and apparatus |
| 02/10/2000 | WO2000006417A1 Device and vehicle for moving a container, notably a heavy metallurgical vessel |
| 02/10/2000 | DE19835513C1 Method and apparatus for treating slag which is not yet solidified, with a treatment substance fed into the slag by means of a filled wire which is perforated directly before its entry into the slag |
| 02/10/2000 | DE19835272A1 Verfahren zum Eintragen von Sauerstoff und/oder eines Sauerstoff-haltigen Gasgemisches in eine Schmelze A process for introducing oxygen and / or an oxygen-containing gaseous mixture into a melt of |
| 02/09/2000 | EP0978574A1 Compositions of cationic surfactants and their use as antifouling agents for induced draft fans (IDF) |
| 02/09/2000 | EP0978571A1 Process for the pulsed introduction of oxygen and/or oxygen-containing gas mixtures into a melt |
| 02/09/2000 | CN2362868Y Drop-proof brake device for oxygen blasting apparatus |
| 02/09/2000 | CN1243941A Water cooling arm for pre-heater on top of furnace |
| 02/08/2000 | US6022507 Exchange device for a blowing lance |
| 02/04/2000 | CA2279553A1 Cationic surfactants as antifouling agents for induced draft fans (idf) |
| 02/03/2000 | WO2000005423A1 Scrap metal weighing and on-line bulk material analysis process and apparatus |
| 02/03/2000 | WO2000005421A1 Blast furnace with narrowed top section and method of using |
| 02/01/2000 | US6019938 High ductility very clean non-micro banded die casting steel |
| 01/27/2000 | WO2000004197A1 Induction furnace for a metal reduction and melting process |
| 01/27/2000 | DE19933536A1 Producing steel in an electric arc furnace with use of reduced iron pellets as principal material, with certain proportion of reduced iron pellets introduced into submerged-electrode electric arc melting furnace |
| 01/27/2000 | DE19840687A1 Vehicle-mounted handling device for heavy slag or liquid metal containers |
| 01/26/2000 | EP0974675A1 Pressure converter steel making method |
| 01/26/2000 | CN2360419Y Tapping hole reamer of converter |
| 01/25/2000 | US6017486 Comprehensive fume collection system for production of leaded steel |
| 01/25/2000 | US6017380 Top-blown refining method in converter featuring excellent decarburization and top-blown lance for converter |
| 01/25/2000 | CA2126188C Method for continuously melting down scrap metal |
| 01/20/2000 | DE19832701A1 Converter steelmaking process comprises taking the deoxidizing agent burn-off into account for precise calculation of the optimal tapping temperature for subsequent process steps |
| 01/19/2000 | CN1241637A Compound scorifying agent |
| 01/13/2000 | WO2000001855A1 A direct smelting process |
| 01/13/2000 | WO2000001854A1 Direct smelting vessel and direct smelting process |
| 01/13/2000 | DE19932178A1 High-velocity burner for furnaces serving for steel production |
| 01/12/2000 | EP0971193A1 Water cooled finger |
| 01/12/2000 | EP0970339A1 Method to load scrap for electric arc furnace and relative system |
| 01/12/2000 | EP0970338A1 System to load pre-heated scrap by means of baskets for electric arc furnace |
| 01/12/2000 | EP0970255A1 Cooled basket for steel plants |
| 01/12/2000 | EP0757666B1 Metallurgical furnace vacuum slag removal |
| 01/12/2000 | CN2358083Y Carbon-oxygen gun manipulator for electric furnace door |
| 01/12/2000 | CN1048284C Safety Opertion method for remained converter slag |
| 01/11/2000 | CA2167334C Thermal stabilization of steelmaking slag |
| 01/11/2000 | CA2145360C Gas purging means for wall-side installation in metallurgical melting vessels |