| Patents for B23K 31 - Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by any single one of main groups (10,413) |
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| 08/08/1991 | WO1991011285A1 Weld repairable combustor |
| 08/07/1991 | CN2082213U Precision flame cutting contour machine with deep and narrow u-shape trough |
| 08/06/1991 | US5036913 Vehicle radiator with tube to header joint formed of a composite weld and solder bond |
| 08/01/1991 | DE4002349A1 Process for levelling out non-parallelism - useful in power closing and soldering process |
| 07/31/1991 | EP0438501A1 Welding of coated metals |
| 07/30/1991 | US5035355 Method for the production of a warp beam, and warp beam so produced |
| 07/24/1991 | CN1053205A Fill welding using common (t506) welding rod for cast iron parts |
| 07/18/1991 | DE4000751A1 Renewing worn drive wheels of tracked military vehicle - by first grinding out teeth in packet of worn wheels then welding on new wear-resisting layers esp. for tank |
| 07/17/1991 | EP0436652A1 Hybrid microchip bonding article |
| 07/16/1991 | US5032147 Heat resistance |
| 07/10/1991 | EP0436322A2 Method of checking external shape of solder portion |
| 07/10/1991 | CN1013084B Method of welding inside groove machined in solid steel part, and utilization of the method for repairing cracked rotor |
| 07/05/1991 | WO1991009700A1 Method of operation for high speed automatic welding |
| 07/03/1991 | EP0435813A2 Integrated brazing fixture for brazing titanium |
| 07/02/1991 | US5028381 Device for the ultrasonic non-destructive testing of a circular weld inside a steam generator tube |
| 06/26/1991 | EP0434430A1 Surfacing method |
| 06/25/1991 | CA1285127C Methods for weld repairing hollow, air cooled turbine blades and vanes |
| 06/19/1991 | EP0432958A1 A method of making a seamless screen cylinder |
| 06/11/1991 | US5023916 Method for inspecting the leads of electrical components on surface mount printed circuit boards |
| 06/05/1991 | EP0430095A2 Inner lead bonding inspecting method and inspection apparatus therefor |
| 06/05/1991 | EP0429900A2 Method for manufacturing hollow valves of piston motors |
| 06/04/1991 | US5020716 Integrated brazing fixture for brazing titanium |
| 05/22/1991 | CN2077347U Repair installation for correcting deformed outside shell of automobile |
| 05/16/1991 | DE3937476A1 Glass container mouthpiece tool - has reinforcing half-shell bonded to mouthpiece half-shell by induction soldering to reduce formation of oxide(s) |
| 05/07/1991 | US5012800 Mechanical-metallurgic process for repairing machines or machine components damaged by cracks, fissures, wearings or squashes made of metallic material difficult to weld and of any forms |
| 05/07/1991 | CA1283954C Apparatus to be used when welding pipes together |
| 05/02/1991 | DE4025652A1 Pipe connection flange with pipe socket - has ring washer of U=shaped annular cross=section, with sealing surface, bridge piece and screws |
| 04/30/1991 | US5012502 Method for determining degree of interconnection of solder joints using X-ray inspection |
| 04/25/1991 | DE4031895A1 Programmable receiver for material defect detection and analysis - uses A=D converter, time and amplitude processor with single channel and multiple peak processing unit |
| 04/16/1991 | US5007165 Method of producing a cam shaft |
| 04/04/1991 | WO1991004123A1 Method of producing spot-like partially clad member |
| 03/20/1991 | CN2073338U Die set for removing weld-reinforcement in weld steel pipe |
| 03/19/1991 | US5000368 Method for cladding the ends of a pre-clad tubular product in preparation for threading |
| 03/13/1991 | EP0416239A1 Procedure for the fabrication of a crunkshaft or a corresponding structural component |
| 02/26/1991 | CA1280807C Adaptive welding control vision head |
| 02/05/1991 | CA1279903C Inert atmosphere control for induction heated pressure welding system |
| 01/30/1991 | EP0410623A1 Method and apparatus for soldering articles |
| 01/30/1991 | EP0410211A1 Process for producing an electrically conductive connection between enamelled copper wires and terminals |
| 01/30/1991 | CN2070220U Gravity welding machine frame |
| 01/29/1991 | US4988032 Method for assembling a structural panel in order to prevent the sag thereof |
| 12/19/1990 | CN2067626U Welder for label of poultry quarantine |
| 12/12/1990 | CN1010753B Method of preventing say of panel and apparatus therefor |
| 12/11/1990 | US4976912 Apparatus for sealing a container for the storage of radioactive material |
| 12/05/1990 | EP0400071A1 Laminar polymeric sheet |
| 12/05/1990 | EP0400070A1 Laser-machining polymers |
| 11/28/1990 | CN1047236A Process for reflow soldering |
| 11/27/1990 | US4972912 Diamond insert |
| 11/07/1990 | EP0396401A2 Apparatus and method for the production of cutter tools |
| 11/06/1990 | CA1275787C Method for repairing a steam turbine or generator rotor |
| 10/17/1990 | EP0391979A1 Uses of uniaxially electrically conductive articles |
| 10/16/1990 | US4962905 Apparatus for holding samples during solderability testing |
| 10/10/1990 | EP0390925A1 Crack growth limiter in high-pressure welded pipelines and method of making it |
| 10/04/1990 | DE3910495A1 Welding apparatus for producing a car rim |
| 09/26/1990 | EP0389218A1 Process for reflow soldering |
| 09/20/1990 | WO1990010522A1 Structural component with at least one cavity and process for obtaining it |
| 09/20/1990 | WO1990010518A1 A fluxless soldering process |
| 09/19/1990 | CN1009622B Monolayer braze welding pipe |
| 08/30/1990 | DE3906028A1 Method for producing a vacuum jacket (cover, envelope) and vacuum jacket produced using this method |
| 08/21/1990 | US4950557 Composite diamond or boron nitride compacts strongly bonded to support |
| 08/15/1990 | CN1009177B Apparatus to be used welding pipes together |
| 08/07/1990 | US4946304 Glass coated article |
| 07/24/1990 | US4943492 Welding aluminium alloys |
| 07/18/1990 | EP0377585A1 Annular shim for construction bit having multiple perforations for stress relief |
| 07/17/1990 | US4941891 Tool component |
| 07/17/1990 | CA1271800A1 Method of preventing sag of panel and apparatus therefor |
| 07/11/1990 | CA2006924A1 Mechanic-metallurgic process to repair machines or machine components damaged by cracks, fissures, wearings or squashes made of metallic material difficult to be welded and of anyforms |
| 06/28/1990 | DE3902163A1 Method and apparatus for strengthening a container seam |
| 06/20/1990 | EP0373295A1 Process for the manufacture of a warp beam, and warp beam made by this process |
| 06/20/1990 | CN2058361U 悬臂焊接机 Boom welding machine |
| 06/13/1990 | CN1008346B Brazing process for bicycle frame |
| 06/05/1990 | US4931363 Brazed thermally-stable polycrystalline diamond compact workpieces |
| 05/31/1990 | DE3690711C2 Machine for resistance welding of tubes - partic. applicable to long pipelines |
| 05/29/1990 | US4930026 Flaw detector for magnetographic quality inspection |
| 05/29/1990 | CA1269689A1 Attachment of solder buttons to elongated conductor |
| 05/22/1990 | US4927068 Method for heating a patterned substrate |
| 05/02/1990 | EP0365977A1 Cooling and exhaust unit for solder reflow system |
| 05/02/1990 | CN2056622U Purifier for welding smoke |
| 05/01/1990 | US4921157 Fluxless soldering process |
| 04/25/1990 | EP0365229A1 Welding of coated metals |
| 04/19/1990 | WO1990003865A1 Welding of coated metals |
| 04/17/1990 | US4916795 Method for mending a dent on a member made of aluminum alloy |
| 04/15/1990 | CA2000633A1 Welding of coated metals |
| 04/11/1990 | EP0363136A2 Soldering apparatus of a reflow type |
| 04/10/1990 | US4915624 Continuous oven for soldering electronic components |
| 04/05/1990 | WO1990003662A1 Hybrid microchip bonding article |
| 04/05/1990 | DE3929609A1 Mounting for round shafted chisel - has hard metal lined seating which extends its useful life |
| 04/04/1990 | EP0361985A1 Hybrid microchip bonding article |
| 04/04/1990 | EP0361507A1 Process for reflow coating using an atmosphere having a controlled oxidation capability |
| 04/04/1990 | CN2055428U Electrically welded net machine |
| 04/03/1990 | US4912857 Cooling and exhaust unit for solder reflow system |
| 04/03/1990 | CA1267270A1 Method of making a heat exchanger |
| 03/28/1990 | CN1040842A Structural member with welded hollow end sections and process for forming same |
| 03/15/1990 | DE3829793A1 Process and measuring means for determining the quality of liquid fluxes, in particular in automatic soldering apparatus |
| 03/14/1990 | CN1040437A Device for ultrasonic non-destructive testing of circular weld inside steam generator tube |
| 03/14/1990 | CN1040424A Crack arrester for high-pressure welded pipelines and method of producing same |
| 03/13/1990 | US4907732 Right-of-way double jointer |
| 02/22/1990 | WO1990001671A1 Crack growth limiter in high-pressure welded pipelines and method of making it |
| 02/20/1990 | US4901417 Method of finishing screen plates |
| 02/13/1990 | US4899922 Using cemented carbide support |
| 02/08/1990 | WO1990001091A1 Structural member and process for forming same |