| 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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| 11/27/1996 | CN1033397C Method and apparatus for sealing tuyeres in the surrounding refractory lining |
| 11/26/1996 | CA1338731C Method of smelting reduction of chromium raw materials and a smelting reduction furnace thereof |
| 11/21/1996 | DE19518554A1 Gas curtain prodn. pref. at melting furnace opening |
| 11/19/1996 | US5575829 Direct use of sulfur-bearing nickel concentrate in making Ni alloyed stainless steel |
| 11/12/1996 | US5573573 Electric arc furnace arrangement for producing steel |
| 11/07/1996 | WO1996034988A1 Process for producing foundry iron |
| 11/07/1996 | WO1996034711A1 Sliding gate valve |
| 11/07/1996 | CA2219232A1 Sliding gate valve |
| 11/06/1996 | EP0740695A1 Utilizing discarded carbon |
| 11/06/1996 | CN1135240A Method and equipment for introducing gases into metal melts |
| 11/06/1996 | CN1134984A Method for producing alloyed steels |
| 11/06/1996 | CN1033233C Apparatus for supplying medium to ejection gun |
| 11/06/1996 | CN1033232C Device for supporting and connecting for ejection gun |
| 11/05/1996 | US5572544 Electric arc furnace post combustion method |
| 11/05/1996 | US5571486 Method and apparatus for top-charging solid waste into a molten metal bath |
| 11/05/1996 | US5571307 Process and device for blowing oxygen over metal melts |
| 11/05/1996 | CA1338688C Oxygen injection lance |
| 10/31/1996 | WO1996034120A1 Process and plant for recycling iron-containing residues from the steel and iron industry |
| 10/31/1996 | DE19529984C1 Arc oven base electrode |
| 10/31/1996 | DE19529924C1 Arc furnace with simple arc spot displacement mechanism |
| 10/30/1996 | EP0739989A1 Process for melting metal or non metal materials |
| 10/30/1996 | CN2238839Y Water cooled dust removing reducer pipe |
| 10/29/1996 | US5569314 Thermal stabilization of steelmaking slag |
| 10/23/1996 | CN1033097C Method for protecting refractory lining in gas space of metallurgical reaction vessel |
| 10/22/1996 | US5567286 Apparatus for refining a low carbon steel melt |
| 10/22/1996 | US5567224 Alloying |
| 10/22/1996 | US5567222 Method of controlling slag coating of a steel converter |
| 10/22/1996 | US5567218 Cooled sliding blade for adjusting diameter of opening in crucible floor; accuracy, durability |
| 10/22/1996 | US5566989 Solids pipeline having multiple rotary connectors |
| 10/17/1996 | WO1996032616A1 Preheater for arc furnaces |
| 10/17/1996 | WO1996032505A1 Iron smelting process and plant according to the multiple zone smelting process |
| 10/17/1996 | CA2217896A1 Plant and process for the production of iron melts |
| 10/16/1996 | EP0737754A2 Lance for blowing fluid-state substances inside furnaces, particularly for steel production |
| 10/10/1996 | WO1996031627A1 A method of producing metals and metal alloys |
| 10/10/1996 | DE19512485A1 Gas feed unit with oriented porosity, small height and durability allowing large gas volume feed |
| 10/09/1996 | CN1133114A Bottom electrode for metallurgical vessel |
| 10/09/1996 | CN1132796A Process for semlting titanium steel and steel obtained |
| 10/09/1996 | CN1132794A Decarburising and refining method of Cr-containing molten steel |
| 10/08/1996 | US5562753 Method and installation for producing molten steel from ferrous materials rich in carbonaceous materials |
| 10/02/1996 | EP0735147A1 Process and installation for limiting the volume of foam slag in a metallurgical vessel |
| 10/02/1996 | EP0735146A1 Apparatus for producing molten pig iron by direct reduction |
| 10/02/1996 | EP0734458A1 Loading device for feeding liquid metal into an electric furnace |
| 10/02/1996 | CN2236498Y Composite refractory prefabricated block for metallurgic vessel |
| 10/02/1996 | CN1132255A Safety working method for remained converter slag |
| 09/25/1996 | EP0733299A1 Submerged arc furnace with vertically movable frame |
| 09/25/1996 | EP0649478A4 Method for producing steel. |
| 09/25/1996 | CN1131698A Method and device for operating double-cylinder arc furnace |
| 09/25/1996 | CN1032869C Method and unit for utilizing and recovering mud produced by wet dust removal of converter |
| 09/24/1996 | US5558695 Process and unit for continuous metal refinement |
| 09/19/1996 | WO1996028573A1 Method for producing steel in an electric arc furnace, and electric arc furnace therefor |
| 09/19/1996 | WO1996028267A1 Nozzle for the introduction of gases and/or solids into metal melts |
| 09/19/1996 | CA2190163A1 Method for producing steel in an electric arc furnace, and electric arc furnace therefor |
| 09/18/1996 | EP0732411A1 Vessel for a smelting plant |
| 09/18/1996 | EP0732410A1 Tap hole structure |
| 09/18/1996 | CN1131197A D.C. electric-arc furnace |
| 09/18/1996 | CN1131196A High effective oxygen blowing method for making steel in converter |
| 09/18/1996 | CN1032823C Technology for smelting ultralow-carbon high-chromium alloyed steel by subaerated induction furnace |
| 09/17/1996 | US5557631 Sonic furnace monitoring apparatus |
| 09/12/1996 | DE19508849A1 Einblasvorrichtung Bubbler |
| 09/11/1996 | EP0731327A1 Oxidant lancing nozzle |
| 09/11/1996 | EP0730667A1 Process and device for introducing gases into metal melts |
| 09/11/1996 | CN2234957Y Pyramid oxygen lance |
| 09/10/1996 | US5555259 Process and device for melting down of scrap |
| 09/04/1996 | EP0730038A1 Apparatus for connecting a ladle to one or more gas conduits |
| 09/04/1996 | EP0729797A1 Device and process for automatic coupling of a casting ladle to one or more gas conduits |
| 09/04/1996 | EP0729560A1 Cooling of hot bodies |
| 09/03/1996 | CA1338567C Method of recycling steel belted tires |
| 08/29/1996 | DE19506718A1 Lance tip esp. for steel converter oxygen@ lance |
| 08/21/1996 | EP0727500A1 Method and installation for producing metal ingots |
| 08/20/1996 | US5547489 Decarburizing steel with oxygen-containing gas at atmospheric pressure, blowing non-oxidizing gas under reduced pressure, adding reducing agent to reduce chromium oxides formed |
| 08/20/1996 | US5547170 Gas and/or solid material blasting device for a metallurgical vessel and method of manufacture thereof |
| 08/20/1996 | EP0691411A4 Process for the continuous refining of metal and a facility for carrying out said process |
| 08/15/1996 | WO1996024698A1 Direct arc furnace for smelting metals with burner in the electrode opening |
| 08/15/1996 | WO1996024697A1 Apparatus for injecting gases or fluids in general and particulates, particularly for injecting oxygen, in furnaces for the production of steel |
| 08/15/1996 | WO1996024696A1 Method of manufacturing pig iron or steel and cement clinker from slags |
| 08/14/1996 | EP0726439A1 Process and device for repairing a metallurgical vessel |
| 08/14/1996 | CN2232921Y Machine for stopping slag and throwing balls |
| 08/13/1996 | US5546176 Method for measuring wear in the lining of a container provided with a pivoted axle and an opening, and a container |
| 08/08/1996 | DE19521518C1 Method for improving energy delivery in a scrap charge |
| 08/07/1996 | EP0725150A1 Oxygen blowing lance capable of being used in an electric and method for blowing oxygen onto metal by said oxygen blowing lance furnace |
| 08/07/1996 | EP0638129B1 Mercury contaminated mud treatment |
| 08/01/1996 | WO1996023082A1 Tip element for an oxygen-converter tuyere |
| 07/31/1996 | EP0723734A1 Bottom electrode for a metallurgical vessel |
| 07/31/1996 | EP0723487A1 Method of adjusting the composition of a molten metal such as steel, and plant for implementation thereof |
| 07/31/1996 | CN1128050A Steel manufacturing method using converter |
| 07/30/1996 | US5541952 Apparatus and method of preheating steel scrap for a twin shell electric arc furnace |
| 07/30/1996 | US5540753 Controlled blowing of gas mixture containing oxygen;overlapping holes |
| 07/30/1996 | CA2010357C Method for smelting reduction of ni ore |
| 07/25/1996 | WO1996022395A1 Method for enhancing reaction rates in metals refining, extraction, and recycling operations involving melts containing ionic species such as slags, mattes, fluxes and the like |
| 07/24/1996 | EP0723129A2 Melting method for an electric arc furnace with alternative sources of energy and relative electric arc furnace |
| 07/24/1996 | EP0723023A1 Controlled foamy slag process |
| 07/24/1996 | EP0723022A1 Process for treating of metal melts by a treating gas being considerately cooled down under environment temperature |
| 07/23/1996 | US5539700 Column selection circuit of semiconductor memory with transfer gate |
| 07/23/1996 | US5538184 CO2 snow discharge apparatus |
| 07/23/1996 | US5537940 Waste treatment in metal bath to form hydrogen and carbon oxide gas after oxidation then decarbonization |
| 07/20/1996 | CA2159231A1 Controlled foamy slag process |
| 07/18/1996 | CA2167140A1 Melting method for an electric arc furnace with alternative sources of energy and relative electric arc furnace |
| 07/17/1996 | EP0721990A1 Method for producing alloyed steels |
| 07/17/1996 | CN1126828A Temperature detecting sensor |
| 07/17/1996 | CN1126820A Lower furnace cylinder of DC arc furnace |