Patents
Patents for C21C 5 - Manufacture of carbon steel, e.g. plain mild steel, medium carbon steel, or cast-steel (14,381)
01/1996
01/16/1996CA1337920C Process for detecting outflow of slag
01/11/1996WO1996000799A1 Method and device for directly feeding liquid metal from a ladle into an electric furnace
01/11/1996DE4424009A1 Base electrode for a DC arc furnace has improved abrasion resistance, electrical conductivity and optimal cooling in the base plate region
01/11/1996CA2193472A1 Method and device for directly feeding liquid metal from a ladle into an electric furnace
01/10/1996EP0691411A1 Process for the continuous refining of metal and a facility for carrying out said process
01/10/1996CN2217021Y Tilting mechanism Frequency-changing and speed adjusting driving means for tilting mechanism of converter
01/10/1996CN2217020Y Apparatus for removing slags from under part of converter
01/03/1996EP0690137A2 Method of decarburizing refining molten steel containing Cr
01/02/1996US5480474 Process and apparatus for smelting reduction of ores or pre-reduced metal carriers
01/02/1996US5480473 Gases emerging from metal bath are afterburned in space above smelt by injected oxidizing agents; transferring heat
01/02/1996US5480127 Apparatus for the melting and treatment of metal
01/02/1996CA1337848C Process for treating liquid metals
12/1995
12/28/1995WO1995035394A1 Method for producing steel
12/28/1995WO1995035393A2 Method for the production of steel
12/27/1995EP0688877A1 Process for producing low-carbon chromium-containing steel
12/27/1995EP0688876A2 Cooled mantle ring for a converter
12/26/1995US5479435 DC arc furnace
12/26/1995US5479434 Double-hearth arc furnace for preheating scrap material and method of operating the same
12/26/1995US5479433 For melting an object
12/26/1995US5478392 A hydraulical setting binding material having a free calcium oxide grains formed by spraying a molten stream of steel slag with a sprayed pressurized water
12/26/1995CA2088309C System of sized bricks
12/21/1995WO1995034791A1 Process for melting a metal charge in a rotary kiln, and rotary kiln for implementing such process
12/21/1995DE4420869A1 Floater cone for converters
12/21/1995CA2192953A1 Process for melting a metal charge in a rotary kiln, and rotary kiln for implementing such process
12/20/1995CN2215493Y Automatic deslag oxygen gun
12/20/1995CN1113522A Metallurgy of 12Cr2MoWVTiB by oxygen converter
12/19/1995US5476532 Method for producing reducible iron-containing material having less clustering during direct reduction and products thereof
12/19/1995CA2075587C Gas purging plug for electric-arc furnaces and the corresponding electric-arc furnace
12/19/1995CA2066455C Top submerged injection with a shrouded lance
12/19/1995CA1337744C Method for cleaning molten metal and apparatus therefor
12/14/1995WO1995033587A1 Scavening device for use with a metallurgical vessel, in particular a steel-making converter
12/13/1995EP0686700A2 Titanium containing additive and its use for increasing the durability of a furnace refractory lining or as a slag former
12/12/1995US5475582 Stepless control of a load guided parallel resonant inverter
12/06/1995EP0685000A1 Method and apparatus for slag free casting
12/06/1995CN1113003A Method and apparatus for measuring displacement of molten metal
11/1995
11/30/1995DE4418145A1 Pipe duct for conveying solids,
11/29/1995CN2213734Y Steel cover type oxygen gun for temp. rising device
11/28/1995US5471495 Electric arc furnace arrangement for producing steel
11/22/1995EP0682717A1 A slag defoaming composite
11/22/1995CN2213164Y Pushing off slag device for manufacture of steel in converter
11/14/1995US5465943 Bottom or wall structure for a metallurgical vessel
11/14/1995US5465942 Tuyere arrangement for the introduction of agents into a molten bath and method of operating such a tuyere arrangement
11/08/1995EP0680519A1 High-production rotary furnace steelmaking.
11/08/1995CN1111287A Method and apparatus for recovery of valuable substance
11/07/1995CA1337499C Gas flushing brick
11/06/1995CA2122952A1 Method and apparatus for removing a nozzle insert from a steelmaking ladle
11/04/1995CA2127593A1 Method and apparatus for installing a nozzle insert in a steelmaking ladle
11/02/1995WO1995029265A1 Process for keeping a metallurgical vessel opening free from deposits
11/02/1995WO1995029264A1 Process and device for keeping a metallurgical vessel opening free from deposits
11/02/1995WO1995029263A1 Device for introducing a lance into a metallurgical vessel
11/02/1995WO1995029137A1 Metallurgical furnace vacuum slag removal
11/02/1995EP0679723A1 Process for manufacture of a gas- and/or solid injection installation for metallurgical vessels and installation for injection manufactured by said process
11/02/1995EP0544786B1 Treatment of oxide-containing dusts
11/01/1995CN1110989A Method of manufacturing a gas and/or solid material blasting device for metallurgical vessels and blasting device manufactured in accordance with the method
10/1995
10/31/1995US5463653 Power converter device for direct current power supply to an electric arc furnace
10/31/1995US5462613 Controlling mechanical properties by analysis of melt samples, then adjusting concentration of elements which control critical properties
10/31/1995US5462579 Blowing oxygen gas on surface of melt from above and injecting a mixed gas from the bottom
10/31/1995US5462260 Device for inserting a lance into a pressurized container, in particular a blast furnace
10/31/1995US5462259 Tilting device for a D.C. arc furnace and process for emptying the furnace
10/31/1995CA1337456C Method of smelting metal oxide material
10/26/1995WO1995028501A1 Device for the protection of personnel during the servicing of the lining of converters, chimneys and the like
10/25/1995EP0678584A1 Installation for gas flushing in the wall of a metallurgical vessel
10/25/1995CN2210900Y Device for connection of converter trunnion and cooling tube at furnace mouth
10/25/1995CN1110719A Slag fomation agent for adding magnesium in magnesium balls for smelting steel
10/17/1995US5458671 Suppression of fume in metal pouring
10/17/1995US5458320 Accretion controlling tuyere
10/17/1995CA2022542C Gunning composition
10/12/1995WO1995027084A1 Base electrode of a dc-heated metallurgical vessel
10/10/1995CA2010356C Method for manufacturing molten metal containing ni and cr
10/05/1995DE4423334C1 Cooled converter carrier ring
10/05/1995DE4411591A1 Bodenelektrode eines mit Gleichstrom beheizten metallurgischen Gefäßes Bottom electrode of a heated with direct current metallurgical vessel
10/04/1995EP0437618B1 Method of dephosphorizing chromium-containing hot metal with lowered oxidation loss of chromium
10/04/1995CN1109694A Electric arc fusion furnace
10/04/1995CN1109690A Method for melting scrap iron in an electric furnace and equipment for applying this method
10/03/1995US5454853 Method for the production of steel
10/03/1995US5454852 Converter for the production of steel
09/1995
09/28/1995WO1995025819A1 Support for a basis steel converter vessel
09/28/1995WO1995025818A1 A support for a basic oxygen converter vessel
09/28/1995DE4405198A1 Decarburising and degassing of steel melts in converter
09/27/1995EP0674011A1 Method of controlling slag coating of a steel converter
09/27/1995EP0673442A1 Flow control device for the suppression of vortices
09/27/1995CN1109160A Method of operation of A D.C. electric-arc furnace with bottom electrode and refractory part for its implementation
09/26/1995US5453103 Compression, clean burning fuel
09/20/1995EP0672881A1 Melting furnace having preheating vessel
09/20/1995CN1108757A Direct current electric furnace for melting metal
09/20/1995CN1108756A Method for adjusting DC arc furnace
09/19/1995US5451035 Metallurgical furnace for production of liquid steel
09/19/1995CA1337015C Electromagnetic molten metal supply system
09/14/1995DE4446718A1 Scrap preheating in an electric arc double furnace
09/14/1995DE4408397A1 Metallurgical vessel gas flushing system
09/13/1995EP0671595A1 Electric arc fusion furnace
09/13/1995EP0671475A1 Process for the production of liquid steel from scrap
09/08/1995WO1995023947A1 Charging device for arc furnaces
09/08/1995WO1995023660A1 Improvements in metallurgical conversion
09/08/1995CA2184711A1 Charging device for arc furnaces
09/08/1995CA2183262A1 Improvements in metallurgical conversion
09/06/1995CN1107766A Centrifugal casting scoria
08/1995
08/31/1995DE4439122A1 Rendering an object contg. PCB(s) safe
08/31/1995DE4406260A1 Operating a melting unit with two furnaces arranged side by side
08/30/1995EP0668934A1 Process and installation for repairing the lining of steelmaking converters