| Patents for B23K 9 - Arc welding or cutting (32,679) |
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| 03/14/1990 | EP0357696A1 Cooling device. |
| 03/13/1990 | US4907735 Process for producing a chassis for vehicles |
| 03/08/1990 | DE3828459A1 Arc butt-welding process with lift striking and apparatus for carrying out the method |
| 03/07/1990 | CN2053962U Brushless dc generator for arc welding |
| 03/07/1990 | CN2053961U Air plasma cutting machine |
| 03/06/1990 | US4906814 Method of starting arc sensing |
| 02/28/1990 | EP0356134A2 Spray mode gas metal arc welding process |
| 02/27/1990 | US4904843 AC TIG welding apparatus using hot wire |
| 02/27/1990 | US4904842 Blowhole·pit preventing agent and arc-welding method using the same |
| 02/27/1990 | US4904841 Welder system having controllable dual winding alternator |
| 02/27/1990 | US4904840 Auger flight welder |
| 02/27/1990 | US4903888 Turbine system having more failure resistant rotors and repair welding of low alloy ferrous turbine components by controlled weld build-up |
| 02/27/1990 | US4903559 Repetitive arc cutting of continuous sheeting |
| 02/22/1990 | DE3827853A1 Welding head |
| 02/21/1990 | EP0355060A2 Hermetically sealed housing |
| 02/21/1990 | EP0355052A1 Method for manufacturing a spark plug electrode |
| 02/21/1990 | EP0354969A1 Weaving welding method |
| 02/21/1990 | CN2053127U Electrochemic equipment for removing burr |
| 02/21/1990 | CN1039750A Welding method and apparatus |
| 02/21/1990 | CN1006866B Method for tracer controlling groove of filling angle welding by high-speed rotary arc |
| 02/20/1990 | US4902873 Method of electric arc welding |
| 02/20/1990 | US4902871 Apparatus and process for cooling a plasma arc electrode |
| 02/20/1990 | US4902866 Apparatus for mixing gases for use in arc welding processes |
| 02/15/1990 | DE3827509A1 Drive, especially for the welding-wire feed on welding devices |
| 02/15/1990 | DE3827508A1 Transport arrangement for the welding-wire feed on welding equipment |
| 02/14/1990 | EP0354388A2 Device for arc welding |
| 02/14/1990 | CN2052697U Digital control device for the welding current of steel barrel seam welder |
| 02/13/1990 | US4901135 Hermetically sealed housing with welding seal |
| 02/13/1990 | US4899993 Breakaway tool assembly |
| 02/13/1990 | CA1265661A1 Method of rebuilding a strip mill guide |
| 02/08/1990 | WO1990000951A1 Wire gun |
| 02/08/1990 | WO1990000938A1 A wire gun with pulse-modulated motor control |
| 02/07/1990 | EP0353351A1 Panelizing machine and method for use |
| 02/07/1990 | CN2052317U Power-saving portable electric welder |
| 02/07/1990 | CN2052316U Power-saving controllable arc welder |
| 02/07/1990 | CN1006691B Technological equipment for welding double metal boards with gas protection |
| 02/06/1990 | US4898317 Welding wire straightening device and welding torch |
| 02/01/1990 | DE3825532A1 Drahtpistole mit impulsmodulierter motorsteuerung Wire gun with pulse-modulated motor control |
| 01/31/1990 | EP0353098A1 Arc spot welding apparatus |
| 01/31/1990 | EP0352576A2 Welding torch |
| 01/31/1990 | CN1039202A Single-power plasma welding melthod with molten electrode protected by gas |
| 01/31/1990 | CN1039201A Toothed bead welding method |
| 01/30/1990 | US4897773 Inverter output circuit |
| 01/30/1990 | US4897523 Apparatus and method of short circuiting arc welding |
| 01/30/1990 | US4897522 Output control circuit for inverter |
| 01/30/1990 | US4897521 Weld arc simulator |
| 01/30/1990 | US4897519 Chromium, molybdenum, vanadium alloy |
| 01/30/1990 | US4896814 Heat treatment, insertion of steel plate |
| 01/30/1990 | US4896812 Double downhill pipe welder |
| 01/30/1990 | CA1265211A1 Welding pulsating control device |
| 01/24/1990 | CN1006533B Process making components with narrow gap |
| 01/23/1990 | US4896247 Robot vision cooling/protection system |
| 01/23/1990 | US4896018 Method and apparatus for protecting a power transistor from excessive current flow |
| 01/17/1990 | EP0350774A1 Welding method with shielding gas |
| 01/17/1990 | EP0350645A2 Process and device for flame cutting by machine, or welding a tube |
| 01/17/1990 | CN2051143U Dc. power hand-held electric arc welder with sealed distribution box |
| 01/17/1990 | CN1006450B Method and apparatus for controlling short-circuit welding system |
| 01/16/1990 | US4894512 Method and device for underwater electrical welding |
| 01/16/1990 | US4894505 For building a workpiece by deposit welding |
| 01/16/1990 | US4893744 Lining method using clad pieces and a clad piece for the method |
| 01/16/1990 | US4893531 Welding accessory apparatus |
| 01/16/1990 | US4893388 Method of modifying turbine rotor discs |
| 01/11/1990 | WO1990000108A1 Visual control robot system |
| 01/11/1990 | DE3822807C1 Method of welding thin-walled heat-exchanger tubes to the rear of a tube plate |
| 01/10/1990 | EP0350319A2 Tube clamping device for cylindrical workpieces |
| 01/10/1990 | EP0350000A1 Device for the build-up welding of turbine blade tips and compressor blades |
| 01/10/1990 | CN1038624A Container corner |
| 01/09/1990 | US4892990 Automatic welding apparatus for weld build-up and method of achieving weld build-up |
| 01/04/1990 | DE3921423A1 Compression device having an outer housing with a double weld layer, and method for welding an outer housing and a compression unit |
| 01/03/1990 | EP0349490A1 Method and device for preparing granulates |
| 01/03/1990 | EP0348965A2 Load voltage detecting device for use in an apparatus for supplying a current variable with time to a load section |
| 01/03/1990 | CN1038418A Combined parallel power supply for arc welding |
| 01/03/1990 | CN1006287B Riveting method of nozzle for welding |
| 01/02/1990 | US4891494 Process and device for narrow-gap welding |
| 01/02/1990 | US4891493 Narrow gap arc welding process and apparatus therefor |
| 01/02/1990 | US4891492 Mechanism for a robot tool support |
| 01/02/1990 | US4891490 Tubular electrode for plasma torch and plasma torch provided with such electrodes |
| 01/02/1990 | US4891489 Shield cup protector apparatus for plasma arc torch |
| 01/02/1990 | US4890785 Preventive method for plate deformation due to welding in flat plate welded structure |
| 01/02/1990 | CA1264116A1 Process and apparatus for tensioning an endless thin metal sheet on a wheel, roll or drum |
| 12/28/1989 | WO1989012524A1 Installation for pressure welding of parts heated by an arc moving in a magnetic field |
| 12/28/1989 | DE3920521A1 Container-eckelemente Container of corners |
| 12/27/1989 | EP0348125A1 A device for hindgas coverage in arc welding |
| 12/27/1989 | CN2049981U Magnetic control direct current welder |
| 12/27/1989 | CN2049980U Alternating current thin slab arc welder |
| 12/27/1989 | CN1038233A Method and device for pulsatory feeding of continuous electrode wire |
| 12/26/1989 | US4889969 Reduced-spatter pulse arc welding machine for use with a consumable electrode |
| 12/20/1989 | CN2049576U Power saving controller for ac-dc welder |
| 12/20/1989 | CN1006129B Control circuit for current of welding transformer |
| 12/20/1989 | CN1006128B Welding coating and its relevant technology for double-sided forming single-sided welding of alumited steel tube |
| 12/14/1989 | WO1989011947A1 Device for inverted hidden-arc welding |
| 12/14/1989 | WO1989011946A1 Device for inverted hidden-arc welding |
| 12/14/1989 | WO1989011945A1 Method and device for inverted hidden-arc welding |
| 12/14/1989 | WO1989011944A1 Device for inverted hidden-arc welding |
| 12/14/1989 | WO1989011943A1 Device for inverted hidden-arc welding |
| 12/14/1989 | WO1989011942A1 Device for inverted hidden-arc welding |
| 12/14/1989 | WO1989011929A1 Focussed ventilation procedure for a work spot and apparatus used in the procedure |
| 12/13/1989 | EP0345981A2 System for supplying power |
| 12/13/1989 | EP0345530A2 Orbital weld head tool |
| 12/13/1989 | EP0235186B1 Additional agent for underwater arc-welding |