| Patents for B23K 23 - Alumino-thermic welding (500) |
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| 02/13/1996 | US5490888 Mixture of reactants for use in welding |
| 01/23/1996 | US5486245 Method for raising welded rail connections lying below the traveling surface on railroad tracks |
| 08/15/1995 | US5441196 Welding method |
| 07/19/1995 | CN1029352C Technique for manufacturing corrosion-and wear-resisting ceramic lining steel pipe |
| 07/05/1995 | EP0661129A2 Welding process and mixture of reactants for use in such process |
| 06/28/1995 | EP0659517A1 Method of resistance-welding workpieces of metal and resistance-welded weldment of metal |
| 06/07/1995 | CA2137409A1 Welding process and mixture of reactants for use in such process |
| 05/30/1995 | US5419484 Apparatus and process for aluminothermic welding |
| 02/08/1995 | EP0637480A1 Apparatus and process for aluminothermic welding |
| 01/24/1995 | US5383594 Radiation-shielding transport and storage container |
| 12/14/1994 | EP0628374A1 Process for the intermediate cast welding of isothermical annealed rails |
| 12/12/1994 | CA2125507A1 Method for raising welded rail connections lying below the traveling surface on railroad tracks |
| 12/10/1994 | CA2124875A1 Method for intermediate cast type welding of finely pearlitized rails |
| 12/06/1994 | US5370726 Iron oxide and aluminum |
| 09/29/1994 | DE4319416C1 Method for raising rail-joint welds lying below the running surface in railway tracks |
| 09/13/1994 | US5346096 Radiation-shielding transport and storage container |
| 08/24/1994 | EP0611626A1 Welding method and welded structure |
| 08/18/1994 | DE4319165C1 Process for the intermediate cast welding of isothermally annealed rails |
| 08/04/1994 | DE4319417C1 Insert-cast welding of fine-pearlitic rails |
| 02/23/1994 | EP0583670A1 Metallothermic reaction mixture |
| 01/18/1994 | US5279455 Method of attaching a metal element to a metal supporting surface by brazing and apparatus for its implementation |
| 09/09/1993 | DE4231064A1 Alumino thermic welding of metal rail ends - using two part mould with short length to enable work in restricted areas |
| 06/01/1993 | US5215139 Method and mold for aluminothermic welding of rails |
| 05/05/1993 | EP0539670A2 Aluminum welding process and mixture of reactants for use in such process |
| 05/01/1993 | CA2077234A1 Aluminum welding process and mixture of reactants for use in such process |
| 04/28/1993 | EP0538574A1 Shielded transport- and/or shielded storage cask and method of fabrication |
| 02/24/1993 | CN1069215A Welding flux and igniting agent for braze welding |
| 02/03/1993 | EP0526362A1 Method and apparatus for exothermic brazing of a metallic piece to a metallic support structure |
| 02/02/1993 | CA1313292C Process for manufacturing a tubular semifinished copper alloy part |
| 12/23/1992 | CN2125476U Welding device for steel rail bond |
| 12/15/1992 | US5171378 Aluminum welding process and mixture of reactants for use in such process |
| 12/09/1992 | CN1019364B Deposit-metal-type thermit for welding-up ingot mould |
| 09/29/1992 | US5151202 Aluminothermic welding device crucible and crucible cover for use therewith |
| 09/08/1992 | US5145106 Welding apparatus and method |
| 05/07/1992 | DE4034904A1 Welding repair of cracks in large components - uses preheating and component part separation along the crack for layered alumino thermal welding |
| 03/11/1992 | CN1059376A Manufacturing technique of corrosion-proof wear-ressistant ceramic-lined steel pipe |
| 02/26/1992 | CN1015604B Process for manufacturing tubular semifinished copper alloy part |
| 02/11/1992 | CA1295442C Process for modifying the surface of metal or metal alloy substrates and surface modified products produced thereby |
| 01/07/1992 | US5078200 Method of cast-welding between finely pearlitized rails |
| 11/05/1991 | US5062903 Exothermic reduction |
| 10/30/1991 | CN1014502B Fast welding flux |
| 09/25/1991 | CN1054734A Deposit-metal-type thermit for welding-up ingot mould |
| 09/04/1991 | EP0444480A1 Process for the intermediate cast welding of isothermal annealed rails |
| 04/30/1991 | US5011067 Method for attaching a fuse wire to a lead frame |
| 04/09/1991 | US5006414 Coating with fly ash powder, heat treatment, abrasion resistance |
| 01/09/1991 | EP0407240A1 Device and aluminothermic welding, crucible and its structure entering crucible covering cap |
| 01/02/1991 | CN1048183A Quick solder |
| 03/21/1990 | EP0358829A1 Process for modifying the surface of metal or metal alloy substrates and surface modified products produced thereby |
| 01/30/1990 | US4896521 Process for manufacturing a tubular semifinished copper alloy part |
| 12/26/1989 | US4889324 Exothermic welding apparatus and method |
| 12/05/1989 | US4885452 Exothermic welding and method |
| 11/21/1989 | US4881681 Process for modifying the surface of metal or metal alloy substrates and surface modified products produced thereby |
| 11/21/1989 | US4881677 Exothermic welding apparatus including a baffle cover assembly |
| 11/07/1989 | US4879452 Exothermic welding apparatus and method |
| 08/01/1989 | US4852789 Heating a powdered oxide mixture; wear resistant protective coating |
| 07/05/1989 | CN1033585A Process for manufacturing tubular semifinished copper alloy part |
| 04/05/1989 | EP0310085A2 Process for manufacturing a tubular semifinished copper alloy part |
| 12/14/1988 | EP0294575A1 Corner connection for portal frames of buildings, and method of making same |
| 07/20/1988 | EP0274677A1 Alumino-thermal mixture |
| 03/08/1988 | US4729503 Method and equipment for underwater attachment |
| 11/19/1987 | EP0245269A1 Method and equipment for underwater attachment |
| 04/21/1987 | US4658886 High temperature molds and composition for same |
| 08/12/1986 | US4605053 Art of mold welding |
| 07/17/1986 | WO1986004006A1 Method and equipment for underwater attachment |
| 06/11/1985 | US4522322 Self-opening closure for a casting crucible used in aluminothermic reactions |
| 02/14/1984 | CA1162249A1 Method, welding flux, and apparatus for electroslag welding |
| 10/05/1983 | EP0090270A1 Self-opening seal for a crucible used in aluminothermic reactions |
| 09/06/1983 | CA1153186A1 Sinfrac repair |
| 05/11/1982 | CA1123196A1 Exothermic bimetallic composition with small size refractory materials to fill holes in ferrous body |
| 02/09/1982 | CA1117727A1 Metallothermique mold for welding metal parts |
| 02/17/1981 | US4250944 Process for performing aluminothermic rail connection weldings as well as multipart casting mold for performing the process |
| 01/27/1981 | US4247074 Casting mold for aluminothermically welding rails together |
| 12/02/1980 | CA1090626A1 Aluminothermic welding of austenitic manganese steel |
| 11/11/1980 | CA1089183A1 Method of rebuilding an ingot mold |
| 08/12/1980 | US4216816 Aluminothermic welding of austenitic manganese steel |
| 07/08/1980 | CA1080950A1 Repair of steel articles by exothermic reaction |
| 01/23/1980 | EP0007055A1 Process for fastening cables to the surface of wheel carrying rails |
| 09/25/1979 | US4168736 A method of repairing ferrous metal bodies |
| 04/17/1979 | US4149704 Self-opening closure for the discharge aperture of a crucible |
| 01/24/1979 | EP0000456A1 Mould for the metallothermic welding of metal workpieces |
| 01/09/1979 | US4133518 Adjustable support structure for releasably positioning an article |
| 09/05/1978 | US4110887 Method of repairing slag and cinder pots and other heavy steel articles |
| 05/30/1978 | USRE29646 Exothermic reaction, fuel powder and metallic oxide, forming melt that separates into metal and slag phases |
| 02/28/1978 | US4076163 Coupler device |
| 12/20/1977 | US4063720 Automatic unplugging aluminothermic welding crucible |
| 12/13/1977 | US4062485 Exothermic welding device |
| 11/01/1977 | US4055881 Method of rebuilding an ingot mold |
| 07/05/1977 | US4033502 Economical and laborsaving reinforcing bar coupler |
| 07/05/1977 | US4033399 Method for cladding copper and copper alloys to steel substrates |
| 05/10/1977 | US4022442 Welding and cutting apparatus |
| 02/01/1977 | US4005742 Igniting a metal oxide and a fuel powder to form a superheated melt |
| 02/01/1977 | US4005741 Method for the fabrication of tube products |
| 08/24/1976 | US3976239 Process for reconditioning worn frogs |
| 04/06/1976 | US3948434 Extremely rapid and economical method for welding pipes, elongated reinforcing bars or the like in the field |
| 03/30/1976 | US3946793 Method of forming a high-temperature abrasion-resistant coating on a ferrous metal substrate |
| 03/09/1976 | US3942579 Process for the aluminothermic welding of rails |
| 03/09/1976 | US3942578 Method of repairing large castings |
| 02/17/1976 | US3938724 Method of making butt welded tubes |
| 01/27/1976 | US3934784 Method for interjoining stranded wire cable ends |
| 01/20/1976 | US3933191 Insulation with a refractory material |