Patents for C21C 7 - Treating molten ferrous alloys, e.g. steel, not covered by groups (11,430)
01/2001
01/10/2001CN1060532C Calcium-base ternary alloy
01/10/2001CN1060527C Vacuumtight reaction vessel for steel processing with packing gland
01/10/2001CN1060526C Process and device for post-combustion of reaction gases produced during the vacuum processing of steel
01/10/2001CN1060525C Method for producing refining flux in steel making and use
01/09/2001US6171544 Multiple coherent jet lance
01/09/2001CA2195922C Briquette as an additive for metallurgic purposes comprising silicon-containing residues, and process for its production
01/03/2001CN1278559A Multi-component Si-Ca-Ba deoxidizer and desulfurizer for steel smelting
12/2000
12/28/2000WO2000079014A1 Method for recovering metallic chromium from slag containing chromium oxide
12/28/2000WO2000078482A1 Metallurgical treatment apparatus
12/27/2000CN1278012A Method for producing slag forming agent for steelmaking using convertor sludge as raw material
12/27/2000CN1278010A Direct smelting method and equipment
12/27/2000CN1059931C Al-Mn-Ti-Fe alloy used for final deoxidation and low alloy steel additive
12/26/2000US6166681 Measuring the thickness of materials
12/21/2000WO2000077467A1 Through-hole sealing device
12/21/2000WO2000077264A1 Refining method and refining apparatus of molten steel
12/21/2000CA2374750A1 Through-hole sealing device
12/20/2000CN1059717C Solid electrolyte electrolysis deoxidation apparatus
12/20/2000CN1059708C Low alkaline synthetic slag for liquid steel external refining
12/19/2000US6162388 Metallurgical reactor for the treatment under reduced pressure of a liquid metal
12/19/2000US6162387 Vacuum refining furnace
12/14/2000WO2000075380A1 Discharge channel for melting furnaces and pouring ladles
12/14/2000CA2376066A1 Discharge channel for melting furnaces and pouring ladles
12/13/2000EP1059360A2 Method of desulfurizing molten iron
12/13/2000CN1276435A Clad Mg-based wire and its application in external desulfurization of molten iron
12/13/2000CN1276434A Method for desulfurizing melted iron
12/13/2000CN1059469C Cold pressing iron scale pellet cooling,slag melting agent and making method thereof
12/07/2000DE19925598A1 Abstichkanal für Schmelzöfen und Gießpfannen Tapping channel for furnaces and ladles
12/06/2000CN1276019A Ferrite-and calcium-based flux, mixture for its production, and use thereof
12/06/2000CN1275625A Semi-steel dephosphorizing desulfurizing steel-making technology
12/05/2000US6156263 Includes an rh vacuum-degassing device consisting of a vessel and a snorkel composed of an up-leg and a down-leg.
11/2000
11/30/2000WO2000071955A1 Method and system for the treatment of liquid metals
11/30/2000DE19923205C1 Verfahren und Anlage zum Behandeln von flüssigen Metallen Method and apparatus for treating liquid metals
11/30/2000CA2273393A1 Ladle for enhanced steel vacuum decarburization
11/29/2000CN1275238A Soft magnetic nickel-iron aloy with low coercive field strength, high permeability and improved resistance to corrosion
11/29/2000CN1275169A 简易钢包精炼方法 Easy ladle refining method
11/29/2000CN1274759A Composite spray gun for vacuum air-removing tank and its using method
11/25/2000CA2307800A1 Composite for a dense briquette for re-heating a steel bath in a ladle
11/22/2000EP1054069A2 Multi-function lance for a vacuum degassing chamber and a method of using the same
11/22/2000CN1274390A Appts. and method for secondary refinemnt of metals
11/16/2000WO2000068442A1 Method of decarburisation and dephosphorisation of a molten metal
11/16/2000CA2371652A1 Method of decarburisation and dephosphorisation of a molten metal
11/15/2000EP1051714A1 Soft magnetic nickel-iron alloy with low coercive field strength, high permeability and improved resistance to corrosion
11/15/2000EP1051525A1 Method for loading an electric oven with a powder material in the form of a filled hollow body
11/09/2000DE19921161A1 Elektroschlacke-Umschmelzanlage mit einer Kokille und einer Haube Electroslag remelting plant with a mold and a hood
11/08/2000CN1272890A Steel wire rod and method of manufacturing steel for the same
11/07/2000US6143050 Modifying slag for smelting steel in electric arc furnaces
11/01/2000CN1271779A Multi-element compound Mn-series deoxidizer for deoxidizing and alloying in smelting steel
10/2000
10/26/2000WO2000062957A1 Treatment for improving the castability of aluminium killed continuously cast steel
10/25/2000EP1046721A1 Method of consolidating powdery alloying additives for steelmaking
10/25/2000CN1271021A Pre-smelted steel ladle slag reductant and its preparation
10/19/2000WO2000061823A1 Method and device for tapping molten metal from metallurgical vessels
10/19/2000WO2000061269A1 Coupling for a molten metal processing system
10/19/2000DE19917008A1 Alloying additive moulding, for cast iron production in cupola, induction or arc furnaces, comprises silicon carbide granules and a binder containing molasses and optionally calcium hydroxide
10/19/2000CA2366193A1 Method and device for tapping molten metal from metallurgical vessels
10/18/2000CN2401567Y Core-spun wire for deep desulfuration in steelmaking
10/18/2000CN1270236A Ultra-low-C low-P MnFe alloy
10/18/2000CN1270233A Low-C low-P MnAlFe deoxidant
10/12/2000DE19916232A1 Verfahren und Vorrichtung zum Abstechen von Metallschmelzen aus metallurgischen Schmelzgefäßen Method and apparatus for tapping of molten metals from metallurgical melting vessels
10/11/2000CN2400455Y Air brick base brick
10/11/2000CN1269425A Multi-condensed jet-flow spray gun
10/10/2000US6129791 Preventing austenite grains form growing
10/04/2000EP1041341A1 Multiple coherent jet lance
10/04/2000CN2399398Y Smolten iron desulfurizing unit
10/03/2000US6125919 Mold powder for continuous casting and method of continuous casting
09/2000
09/26/2000US6125133 Lance/burner for molten metal furnace
09/20/2000EP1036776A1 Unburned carbon-containing refractory material and vessel for molten metal
09/20/2000EP1036205A1 Method and oxygen lance for injecting gases into a metallurgical tank
09/19/2000US6120578 Method of producing cluster-free Al-killed steel
09/14/2000WO2000053539A1 Method for treating stainless steel refining slag
09/14/2000CA2331182A1 Method for the treatment of slag resulting from the refining of stainless steel
09/13/2000CN1056415C Aluminium-contained premelting slag and prevention method thereof and molten steel desulfurizer and purifier containing same
09/12/2000US6117389 Titanium killed steel sheet and method
09/07/2000DE19916235A1 Filled wire for treating melts, especially of cast iron to obtain a spheroidal graphite structure, comprises a metal sheathed magnesium or deformable magnesium alloy core wire
09/07/2000DE19916234A1 Filled wire for treating melts, especially of iron or steel, comprises an external metal sheath enclosing a treatment agent powder and an inner treatment agent wire
09/07/2000DE19910398A1 Converter and/or electric furnace production of low sulfur content steel comprises adding recycled and/or fresh secondary refining slag during and/or after tapping into a ladle
09/06/2000CN1265426A Composite deoxidant for smelting steel and its preparation
08/2000
08/29/2000US6110300 Tool of martensitic stainless steel alloy having high oxidation resistance, high corrosion resistance, good hot workability, high strength, high wear resistance
08/23/2000CN1263951A Technology for forming reductive foam slag in ladle furnace
08/17/2000WO2000047783A1 Aluminium shapes as deoxidants for steelmaking
08/16/2000EP1028166A2 Composition for hindering the formation of iron oxides in steel-melting slag and EAF scrap- based steelmaking process using the same
08/16/2000EP1027462A1 Method and device for controlling the formation of foamed slag in an arc furnace
08/16/2000EP0793731B1 Process and apparatus for the manufacture of steel from iron carbide
08/16/2000CN2391893Y Double VD vacuum handling means
08/16/2000CN1263163A Rare earth composite deoxidation material and its technological process
08/15/2000CA2009022C Dispersing gas into molten metal
08/09/2000EP1026266A1 Simple ladle refining method
08/09/2000CN1262337A One-step process for producing SiCaAlBaFe alloy with ore roaster
08/08/2000US6099614 Method and equipment for a treatment in molten cast iron baths with reaction materials having a low or high production of gas
08/02/2000CN1261549A Technology and equipment for mixing active lime powder and liquid adhesive
08/01/2000US6096261 Coherent jet injector lance
08/01/2000CA2147820C Method and apparatus for an improved steel strap
08/01/2000CA2125732C Machinability martensitic stainless steel
07/2000
07/27/2000WO2000043562A1 Stainless steels
07/26/2000EP1021571A1 Apparatus and method for the secondary refinement of metals
07/25/2000US6093235 Process for decarbonising a high-chromium steel melt
07/12/2000EP1018565A1 Steel wire rod and method of manufacturing steel for the same
07/12/2000EP0842302B1 Slag treatment
07/12/2000CN1054322C Granular insulating agent and it prodn. process
07/05/2000EP1015653A1 Metallurgical vessel
07/04/2000US6083296 Method of producing metals and metal alloys
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