| Patents for F27B 3 - Hearth-type furnaces, e.g. of reverberatory type; Electric arc furnaces (6,383) |
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| 02/24/1993 | CN1069331A Direct current arc furnace |
| 02/18/1993 | DE4227059A1 Furnace having foam insulation between inner and outer walls - made from e.g. calcined bauxite reactive solid, hardener contg. water, filler and propellant |
| 02/16/1993 | US5186740 Method for preheating scrap iron by pyrolysis of resinous residues contained therein, with total recovery of their energy content and improvement of the steelmaking cycle |
| 02/10/1993 | EP0526664A1 Apparatus for preparing and feeding iron scraps to an electrical furnace |
| 02/03/1993 | EP0525275A1 Induction crucible furnace with a running platform |
| 01/27/1993 | EP0524399A2 Two-zone countercurrent smelter system |
| 01/27/1993 | EP0161259B1 Charge forming preheating apparatus and method |
| 01/27/1993 | CN1068414A Crack sealing method for inclined open hearth |
| 01/27/1993 | CA2069560A1 Two-zone countercurrent smelter system |
| 01/26/1993 | US5181955 Method and apparatus for heating and smelting pulverous solids and for volatilizing the volatile ingredients thereof in a suspension smelting furnace |
| 01/21/1993 | DE4220306A1 Einrichtung zum freihalten einer lanzenoeffnung eines metallurgischen gefaesses Means for holding a free lanzenoeffnung a metallurgical vessel |
| 01/12/1993 | US5178818 Metallurgical furnace installation |
| 01/05/1993 | US5177763 Furnace bottom structure of direct current electric furnace |
| 12/30/1992 | CN2126400U Heating furnace for acid dipping test of wire outside |
| 12/29/1992 | US5174746 Combustion of sulfide concentrate; efficiency, dust reduction |
| 12/23/1992 | EP0519319A1 Method of operating a direct current arc furnace |
| 12/23/1992 | CN2125799U Electric arc tester |
| 12/22/1992 | US5173919 Manipulation of the exit gas flow in a melting furnace |
| 12/22/1992 | US5173245 Tuyere injector |
| 12/21/1992 | CA2071171A1 Direct-current arc furnace |
| 12/16/1992 | EP0518070A1 Direct current arc furnace facility |
| 12/16/1992 | CN2125116U Electric smelting magnesia multicircuit smelting furnace |
| 12/16/1992 | CN2125114U Frequency conversion speed governing type electrode automatic conditioner for arc furnace |
| 12/16/1992 | CN2125113U Mine electric furnace hanging hole opener |
| 12/15/1992 | US5171357 Water-cooled shields to intercept impure metals ejected by explosive vaporization; inclusion |
| 12/15/1992 | CA2070951A1 Direct-current arc furnace plant |
| 12/10/1992 | WO1992022181A1 Process and device for melting scrap metal in a d.c. arc furnace |
| 12/10/1992 | DE4118756A1 Verfahren und vorrichtung zum einschmelzen von schrott in einem gleichstromlichtbogenofen Method and apparatus for melting scrap in a DC arc furnace |
| 12/09/1992 | CN2124443U Forging heater with dispersed flame |
| 12/01/1992 | US5167700 Method and apparatus for remelting and refining or magnesium and magnesium alloys |
| 11/25/1992 | EP0515255A1 Process and device for the aspiration f fumes or gases from a metallurgical vessel and device therefor |
| 11/25/1992 | EP0515249A1 Partial sealing device between the inside and the outside of an arc furnace |
| 11/25/1992 | EP0514526A1 Facility for producing molten metal in an electric furnace. |
| 11/24/1992 | US5166950 Process and apparatus for melting a furnace charge |
| 11/24/1992 | CA1310493C Melting furnace |
| 11/23/1992 | CA2068900A1 Method and apparatus for sucking gases or fumes into a metallic box; electric furnace with such a device |
| 11/18/1992 | CN1019141B Dc electric-arc furnace |
| 11/17/1992 | US5164146 Foundry furnace having outlet flow passage |
| 11/11/1992 | CN1066088A Improved heater arrangement for aluminum refining systems |
| 11/04/1992 | CN1065884A Gas bottom blowing and supplying system for electric arc furnace |
| 11/04/1992 | CN1018950B Rotation center high-temp dust-collecting hood |
| 11/03/1992 | US5160477 Temperature maintenance and metallurgical treatment furnace |
| 11/03/1992 | CA1309746C Panel adapted for coolant through flow, and an article incorporating such panels |
| 10/29/1992 | WO1992018818A1 Taphole design and pouring method |
| 10/29/1992 | WO1992018268A1 Trap trench |
| 10/29/1992 | CA2108578A1 Taphole design and pouring method |
| 10/28/1992 | EP0510701A2 Improved heater arrangement for aluminum refining systems |
| 10/14/1992 | CN1065328A Cooling ststem for furnace roof having removable delta |
| 10/13/1992 | US5155740 Flicker compensating apparatus for DC arc furnace |
| 10/07/1992 | EP0507668A1 Microwave melting furnace for the vitrification and/or the thickening of materials |
| 10/06/1992 | US5153896 Metallurgical vessel equipped with at least one electrode passing through its wall |
| 10/06/1992 | US5153895 Nonconsumable, water-cooled electrode for electric metal smelting device |
| 10/06/1992 | US5153894 Smelting plant with removable shaft-like charging material preheater |
| 09/30/1992 | EP0506151A1 Cooling system for furnace roof having a removable inner part |
| 09/30/1992 | CN2117578U Non-smoke reverberatory furnace |
| 09/23/1992 | CN2116699U Mixed gas copper smelting furnace |
| 09/17/1992 | WO1992015531A1 A continuous melting furnace for oxide mixtures using direct high frequency induction and having very short refining times and low power consumption |
| 09/15/1992 | CA1307395C Tank furnace for the metallurgical treatment of non-ferrous metals |
| 09/09/1992 | CN2115506U Cycle preheating type coal-burning chemical furnace |
| 09/08/1992 | US5145361 Burner and method for metallurgical heating and melting |
| 09/08/1992 | CA1307095C Silicon smelting process |
| 09/02/1992 | EP0501104A1 After-treatment plant for steel |
| 09/02/1992 | CN2114798U High-efficient spiral combustion furnace bamboo and wood dryer |
| 08/26/1992 | EP0499956A1 Method and apparatus for heating and smelting pulverous solids and for volatilizing the volatile ingredients thereof in a suspension smelting furnace |
| 08/19/1992 | CN1063716A Al-mg ponring refractory coating high-temp. oxygen blow tube |
| 08/19/1992 | CN1017923B Combination left and right handed furnace roof |
| 08/18/1992 | CA1306487C Metallurgical plant |
| 08/18/1992 | CA1306360C Refractory elements for the construction of heat regenerators |
| 08/13/1992 | DE4103269A1 Device for pouring liq. contents from a tiltable vessel - has spout with closed front end and passage in sidewall to prevent cascade formation |
| 08/11/1992 | US5138630 Direct current electric arc furnace |
| 08/11/1992 | US5138629 Direct current electric arc furnace |
| 08/06/1992 | WO1992013108A1 Reed and device for taking and analysing smoke and installation comprising such device |
| 08/05/1992 | CN1063269A Elastic hanging flat-top glass melter |
| 08/04/1992 | US5135202 Apparatus for melting down chips |
| 07/29/1992 | CN1063153A Method for controlling the power of arc furnace |
| 07/28/1992 | US5134628 Direct-current arc furnace having bottom electrodes with bath agitation electromagnet |
| 07/22/1992 | EP0495723A1 Method and apparatus for making mineral fibres |
| 07/22/1992 | EP0495694A1 Tube and apparatus for sampling and analysing of waste gases and installation containing said apparatus |
| 07/19/1992 | CA2059438A1 Process and device for the production of mineral fibers |
| 07/15/1992 | EP0494720A2 Arc furnace electrode control |
| 07/08/1992 | EP0493591A1 Vacuum processing of reactive metal |
| 07/08/1992 | EP0493550A1 A method for operating electron beam furnace and intermediate pressure electron beam furnace |
| 07/01/1992 | CN2108884U Energy saving resistance furnace |
| 06/30/1992 | US5126535 Furnace and kiln construction and thermal insulation and heating unit therefor |
| 06/23/1992 | US5125003 Bottom electrode cooled sleeve for a metallurgical container |
| 06/23/1992 | US5123631 Method of and apparatus for continuously discharging molten metal and slag |
| 06/17/1992 | EP0490869A1 Regulating circuit for the impedance regulation of an arc furnace |
| 06/17/1992 | CN1017086B Refractory elements for construction of heat regenerators |
| 06/17/1992 | CN1017084B Closed vat type furnace for melting aluminium |
| 06/11/1992 | DE4038570A1 Furnace for the combustion of solids, waste materials, other residues - and the recovery of heat energy |
| 06/09/1992 | US5120027 Oxidation and corrosion resistance heating elements |
| 06/09/1992 | CA1302714C Apparatus and method for treating metallic fines |
| 06/07/1992 | WO1992010594A1 Facility for producing molten metal in an electric furnace |
| 06/07/1992 | CA2075294A1 Facility for producting molten metal in an electric furnace |
| 05/27/1992 | EP0487494A1 Plant for the production of molten metals |
| 05/27/1992 | CN2105497U Two-layer combustion energy-saving anneal furnace |
| 05/21/1992 | DE4100960C1 Lid for electric arc furnace for melting steel - has arched main-part and central parts of fire resistant material with iron@ plate seamlessly surrounding central part with air-gap to main part |
| 05/21/1992 | CA2055817A1 Metallurgical furnace installation |
| 05/20/1992 | CN2105032U Hanging top cyclone liquefied gas kiln |
| 05/20/1992 | CA2055737A1 Plant for the production of molten metals |