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| Number | Title | Issue Date |
| 8110772 | System and method for multi-pass computer controlled narrow-gap electroslag welding applications A system and method of multi-pass computer controlled narrow-gap Electroslag welding allowing a faster vertical rate of rise at a much lower voltage, and that includes welding selected narrow-gaps within segments of a weld cavity between heavy plate steel workpieces... | 02/07/2012 |
| 8058583 | Apparatus and method for electroslag welding of rails A method of welding two members together wherein welding material is melted in an electrically heated molten slag, and forms a pool of molten welding material beneath the molten slag. The end surfaces of the two members are in contact with the molten weld material a... | 11/15/2011 |
| 7550692 | Consumable guide tube A consumable guide tube includes a thin first elongated strip, a second elongated strip and a plurality of insulators. The thin first elongated strip has a front face having at least one longitudinal channel and a back face. The second elongated strip has a front fa... | 06/23/2009 |
| 7148443 | Consumable guide tube The invention is a consumable guide tube comprising a thin first elongated strip, a second elongated strip and a plurality of insulators. The thin first elongated strip has a front face and a back face and the front face has at least one longitudinal channel. The se... | 12/12/2006 |
| 7038159 | System and method for electroslag welding an expansion joint rail A system for butt welding expansion joint rails with an electroslag welding system. The electroslag welding system for butt welding the expansion joint rails comprises a control system. The method for butt welding the two expansion joint rails with the electroslag w... | 05/02/2006 |
| 6303904 | Weld material, gas metal arc welding method, and welded structure An object of the present invention is to provide a weld material which contains 8 to 13% Cr, and can be used with the GMA welding method, a GMA welding method which has superior arc stability and can provide a welded material having superior properties, a... | 10/16/2001 |
| 5648001 | Welding method and clamping device for steel reinforcements A welding method for steel reinforcements, wherein electric current flows through the reinforcements, an electroslag pool formed from a solder melted by an electric arc generates a lot of heat to melt the reinforcements, pressure is applied to combine the... | 07/15/1997 |
| 5472134 | Weld joint container A joint container for forming a weld joint utilizing multiple adjacent metal plates which are spaced apart and positioned angularly to each other. One of the plates forming the joint may extend continuously through the joints along a straight line. At lea... | 12/05/1995 |
| 5175405 | Method of automatically welding rails In a method of automatically welding rails, welding of bottom portions of the rails is carried out as root pass welding of a first layer according to CO2 gas shielded arc weld technique, and as continuous multilayer welding of layers above the ... | 12/29/1992 |
| 4841116 | Process for automatic fusion welding of rails A process for automatic fusion welding of rails by a combination of submerged arc welding and electroslag welding, comprising a root run for welding a rail base by submerged arc welding and, without interruption of the welding, subsequent runs for welding... | 06/20/1989 |
| 4707581 | Apparatus for the electroslag surfacing of rolling mill rolls Equipment for the electroslag surfacing of rolls. A roll to be surfaced is held in vertical position. One or more vertical supports are provided of which a first platform or lower carriage carrying a rotatable sleeve with an annular crystallizer surroundi... | 11/17/1987 |
| 4686341 | Gas shield chamber for arc welding of rails A gas shield chamber for enclosing a welding joint of a pair of rails during the arc welding of the welding joint. A pair of side backing plates are each held in contact with the groove at one side of the rails within the chamber and the side backing plat... | 08/11/1987 |
| 4575606 | Method of electroslag welding and flux A method of electroslag welding consists in mounting parts to be welded with a required gap, assembling a forming device, introducing an electrode into the gap between the parts to be welded, filling the gap with a flux, setting a slag pool with subsequen... | 03/11/1986 |
| 4506130 | Method and apparatus for electroslag welding A method of pool-slag welding is carried out in the well-known manner and arrangement, however, with determined altering current intensity and/or voltage. A control unit is used which is suitable for the pulsewise altering of the values of current intensi... | 03/19/1985 |
| 4495395 | Method for electroslag welding with consumable plate electrodes Ground metallic adding material is fed into the welding gap. Electrodes are introduced into the gap in pairs, one electrode in a pair opposite the other, at an angle equal to the angle of divergence of the end faces being welded together. The electrodes a... | 01/22/1985 |
| 4481400 | Method of electroslag welding of light metals, forming device and flux A method of electroslag welding of light metals wherein parts to be welded, a forming device, and an electrode are successively mounted with the provision of a required gap between said parts, following which the gap is filled with a flux, and then a slag... | 11/06/1984 |
| 4454406 | Method, welding flux, and apparatus for electroslag welding The invention provides a method for electroslag welding of light metals, which includes establishing a slag bath, fusing an electrode and edges to be weld-joined, and filling with molten metal the gap between the edges, the weld metal being held in a liqu... | 06/12/1984 |
| 4438313 | Electroslag welding method A method for electroslag welding of metals by a large-section electrode includes establishing a slag bath, fusing the electrode and the edges being weld-joined, filling with molten metal the inlet metal mould and the gap between the edges, and subsequentl... | 03/20/1984 |
| 4429207 | Method for welding railroad rails and means therefor A method for electroslag welding of railroad rails under field conditions employs a special mold bottom member and a special guide tube structure. The mold bottom member includes a metallic insert which is supported by heat-insulating means, e.g. ceramic ... | 01/31/1984 |
| 4420676 | Welding apparatus An apparatus for safeguarding a welding pool in mechanized welding in a constrained position, for example a vertical position, comprises sliding blocks pressed against the surfaces of the work pieces to be welded and supplying the welding current and the ... | 12/13/1983 |
| 4420672 | Method and apparatus to produce electroslag T-joints where fillets are required A method and apparatus for producing electroslag T-joints where fillets are required is provided by utilizing a water-cooled copper shoe with a slag relief notch placed along the weld joints to provide a dam for the fillet material; the location of the sl... | 12/13/1983 |
| 4413169 | Electro-slag welding process for irregular sections An electro-slag welding method and apparatus has been developed for butt-joint welding of steel rails or other metallic pieces having irregular cross section, in which the head and the web of the rail is surrounded with a conventional water cooled copper ... | 11/01/1983 |
| 4376881 | Method of electroslag welding with a plate electrode A method of electroslag welding and a flux used in the welding process are intended for welding heavy leads of electric installations, particularly busbars of electrolyzers used in non-ferrous metallurgy and chemical industry where intense magnetic fields... | 03/15/1983 |
| 4373128 | Method of electroslag surfacing of components having a cylindrical surface The invention relates to an electroslag surfacing of cylindrical components, such as a rolling-mill roll for iron production. The invention seeks to solve the problems of the electrodes for supplying a high current to the slag, and; how to prevent excess ... | 02/08/1983 |
| 4321448 | Method of and apparatus for welding metal bars A welding method in which two metal bars are disposed such that the opposing ends of these bars are placed in a welding mold with a predetermined welding gap preserved therebetween, and are jointed to each other by filling the space formed between the opp... | 03/23/1982 |
| 4315127 | Electro-slag welding method An electro-slag welding method using as a consumable electrode a strip of mild steel and an electric insulating material. The steel strip has a width substantially equal to the thickness of the plate material to be welded. The electric insulating material... | 02/09/1982 |
| 4303822 | Apparatus for welding steel sheets In an apparatus for electroslag welding of steel sheets with the aid of at least one wire electrode pair, a welding gap defined between the electrodes of the electrode pair, current-carrying conduits for the electrode pair, and a supply tube for supplying... | 12/01/1981 |
| 4278863 | Method of making welded structure Large metal structures for heavy duty machines are prefabricated from subassemblies. The subassemblies are made with matched grooves, and held together. The subassemblies are machined taken apart transported to the field reassembled and electroslag welded... | 07/14/1981 |
| 4260870 | Automatic welding apparatus for upward welding of curved joint Disclosed is an automatic welding apparatus for upward welding of curved joints having a plurality of welding nozzles mounted on an arm for independent or separate movement in directions tangent and normal to the welding line, the arm being carried by a c... | 04/07/1981 |
| 4228337 | Method of electroslag welding A method of electroslag welding for use in the electroslag welding of high tensile strength members formed of low alloy steels of the family of steels which includes American Society of Testing Materials designation ASTM A516-76. The welding electrode use... | 10/14/1980 |
| 4228336 | Method of manufacturing stay ring for water turbine and pump turbine A method of manufacturing a stay ring for a water turbine or pump turbine having an upper annular disc, a lower annular disc and a plurality of circumferentially equal-distantly spaced stay vanes extending between the upper and lower annular discs. The me... | 10/14/1980 |
| 4228342 | Electroslag weld deposit A consumable welding electrode, a method of electoslag welding using such an electrode, and an electroslag weld deposit produced by the use of the welding electrode and welding method of the invention. The welding electrode, while not restricted thereto, ... | 10/14/1980 |
| 4208564 | Nozzle structure of electroslag welding machines A nozzle structure of electroslag welding machines for use in welding planks having heavier thicknesses compared to previously electroslag welded planks, and having as much as 800 mm thicknesses, in which the nozzle structure is formed of a plurality of b... | 06/17/1980 |
| 4207454 | Method for electroslag welding of metals A method for electroslag welding of metals whose density is less than that f welding fluxes, is provided. The method is based on floating-up of drops of molten metal of the edges being welded and of the electrode in a slag whose density exceeds that of the... | 06/10/1980 |
| 4200782 | Method and device for regulating parameters of thermal cycles in electroslag welding A method for regulating the parameters of thermal cycles in electroslag welding in which the entire area of the zone affected by heating is cooled. The area is limited by isotherms of maximum heating temperatures within an interval from temperatures close... | 04/29/1980 |
| 4156122 | Electroslag welding A method of electroslag welding using a blanket of fiberized siliceous material on a stationary consumable guide in a narrow gap welding process.... | 05/22/1979 |
| 4153832 | Overhead submerged arc welding process The present disclosure relates to an overhead submerged arc welding process wherein a flux for the submerged arc welding is supplied from the underside of the welding line while at the same time a consumable electrode is supplied from the underside of the... | 05/08/1979 |
| 4151389 | Method of and apparatus for welding sheet steel panels A method of and apparatus for welding sheet steel panels by submerged arc welding is described. By providing one or, depending on the thickness of the sheet steel panels, more than one pair of closely spaced wire electrodes in the weld gap with the simult... | 04/24/1979 |
| 4130931 | Electroslag boss and process In pipes and the like of relatively heavy section, a boss is formed on the side of the pipe or section by drilling a hole in the pipe, forming a mold around the hole with the hole in relatively vertical position and depositing in the mold and against the ... | 12/26/1978 |
| 4129773 | Consumable guide tube assembly A consumable assembly consituting the source of metal for welding by the electroslag process, comprising a stainless steel guide sleeve, a tube of copper inside the guide sleeve, and a weld wire inside the copper tube.... | 12/12/1978 |
