| IPC 7 English version |
| B23K-B23K01136 |
B23K 13/00 - B23K 103:24  |
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| SECTION B – PERFORMING OPERATIONS; TRANSPORTING |
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| B 23 | MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR (punching, perforating, making articles by processing sheet metal, tubes, or profiles B21D; wire-working B21F; making pins, needles, or nails B21G; making chains B21L; grinding B24) |
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| B 23 K | SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM (making metal-coated products by extruding metal B21C 23/22; building up linings or coverings by casting B22D 19/08; casting by dipping B22D 23/04; manufacture of composite layers by sintering metal powder B22F 7/00; arrangements on machine tools for copying or controlling B23Q; covering metals or covering materials with metals, not otherwise provided for C23C; burners F23D) |
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| Notes |
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| (1) | This subclass covers also electric circuits specially adapted for the purposes covered by the title of the subclass. |
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| (2) | In this subclass, the following term is used with the meaning indicated: |
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| – | "soldering" means uniting metals using solder and applying heat without melting either of the parts to be united. [5] |
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| (3) | In groups B23K 1/00 to B23K 31/00, it is desirable to add the indexing codes of groups B23K 101:00 or B23K 103:00. The indexing codes should be unlinked. [5] |
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| Subclass Index |
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| SOLDERING |
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| WELDING |
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| Characterised by the means used to produce heat |
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| by flame |
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| by electricity |
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| by means of plasma |
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| by nuclear particles |
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| by alumino-thermic means |
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| by laser beam |
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| otherwise |
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| Characterised by the use of impact or pressure |
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| Characterised by other features, processes not restricted to one particular group of this subclass |
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| CUTTING BY APPLYING HEAT LOCALLY; SEVERING | B23K 7/00, B23K 9/00, B23K 15/00, B23K 26/00, B23K 28/00; B23K 11/00 |
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| SCARFING, DESURFACING |
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| MATERIALS; AUXILIARY DEVICES |
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| SPECIAL PROCESSES |
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| Soldering, e.g. brazing, or unsoldering (essentially requiring the use of welding machines or welding equipment, see the relevant groups for the welding machines or welding equipment) |
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1/ | 00 | Soldering, e.g. brazing, or unsoldering (B23K 3/00 takes precedence; characterised only by the use of special materials or media B23K 35/00; dip or wave soldering in the manufacture of printed circuits H05K 3/34) [5] |
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1/ | 002 | . | Soldering by means of induction heating [5] |
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1/ | 005 | . | Soldering by means of radiant energy [5] |
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1/ | 008 | . | Soldering within a furnace (B23K 1/012 takes precedence) [5] |
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1/ | 012 | . | Soldering with the use of hot gas [5] |
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1/ | 015 | . | . | Vapour-condensation soldering [5] |
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1/ | 018 | . | Unsoldering; Removal of melted solder or other residues [5] |
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1/ | 06 | . | making use of vibrations, e.g. supersonic vibrations |
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1/ | 08 | . | Soldering by means of dipping in molten solder |
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1/ | 14 | . | specially adapted for soldering seams (making tubes involving operations other than soldering B21C) [5] |
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1/ | 16 | . | . | longitudinal seams, e.g. of shells [5] |
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1/ | 18 | . | . | circumferential seams, e.g. of shells [5] |
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1/ | 19 | . | taking account of the properties of the materials to be soldered [3] |
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1/ | 20 | . | Preliminary treatment of work or areas to be soldered, e.g. in respect of a galvanic coating (preparation of surfaces in particular ways, see the relevant classes for the treatments or the materials treated, e.g. C04B, C23C) |
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3/ | 00 | Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods (materials used for soldering B23K 35/00) [5] |
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3/ | 02 | . | Soldering irons; Bits |
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3/ | 03 | . | . | electrically heated [5] |
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3/ | 04 | . | Heating appliances (soldering lamps or blow-pipes F23D; electric heating in general H05B) |
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3/ | 047 | . | . | electric [5] |
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3/ | 053 | . | . | . | using resistance wires [5] |
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3/ | 06 | . | Solder feeding devices; Solder melting pans |
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3/ | 08 | . | Auxiliary devices therefor (cleaning pipes or tubes or systems of pipes or tubes, e.g. before soldering, B08B 9/02) [5] |
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| Flame welding or cutting |
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5/ | 00 | Gas flame welding |
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5/ | 02 | . | Seam welding (making tubes involving operations other than welding B21C) |
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5/ | 04 | . | . | using additional profiled strips or like of welding metal along seam edges |
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5/ | 06 | . | . | Welding longitudinal seams |
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5/ | 08 | . | . | Welding circumferential seams |
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5/ | 10 | . | Welding workpieces essentially comprising layers of different metals, e.g. plated workpieces |
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5/ | 12 | . | taking account of the properties of the material to be welded |
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5/ | 14 | . | . | of non-ferrous metals (B23K 5/16 takes precedence) |
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5/ | 16 | . | . | of different metals |
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5/ | 18 | . | for purposes other than joining parts, e.g. built-up welding |
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5/ | 20 | . | making use of vibrations, e.g. supersonic vibrations |
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5/ | 213 | . | Preliminary treatment [3] |
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5/ | 22 | . | Auxiliary equipment, e.g. backings, guides |
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5/ | 24 | . | . | Arrangements for supporting torches (not restricted to flame welding B23K 37/02) |
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7/ | 00 | Cutting, scarfing, or desurfacing by applying flames |
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7/ | 06 | . | Machines, apparatus, or equipment specially designed for scarfing or desurfacing |
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7/ | 08 | . | by applying additional compounds or means favouring the cutting, scarfing, or desurfacing procedure |
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7/ | 10 | . | Auxiliary devices, e.g. for guiding or supporting the torch (guiding means applicable to other metal-working machines B23Q) |
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| Electric welding or cutting |
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9/ | 00 | Arc welding or cutting (electro-slag welding B23K 25/00; welding transformers H01F; welding generators H02K) |
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9/ | 007 | . | Spot arc welding [5] |
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9/ | 013 | . | Arc cutting, gouging, scarfing or desurfacing [5] |
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9/ | 02 | . | Seam welding; Backing means; Inserts |
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9/ | 022 | . | . | Welding by making use of electrode vibrations [5] |
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9/ | 025 | . | . | for rectilinear seams [5] |
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9/ | 028 | . | . | for curved planar seams [5] |
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9/ | 032 | . | . | for three-dimensional seams [5] |
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9/ | 035 | . | . | with backing means disposed under the seam [5] |
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9/ | 038 | . | . | using moulding means (not restricted to arc welding B23K 37/06) [5] |
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9/ | 04 | . | Welding for other purposes than joining, e.g. built-up welding |
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9/ | 06 | . | Arrangements or circuits for starting the arc, e.g. by generating ignition voltage, or for stabilising the arc [5] |
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9/ | 067 | . | . | Starting the arc [5] |
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9/ | 073 | . | . | Stabilising the arc [5] |
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9/ | 08 | . | Arrangements or circuits for magnetic control of the arc |
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9/ | 09 | . | Arrangements or circuits for arc welding with pulsed current or voltage [3] |
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9/ | 095 | . | Monitoring or automatic control of welding parameters [5] |
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9/ | 10 | . | Other electric circuits therefor; Protective circuits; Remote controls |
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9/ | 12 | . | Automatic feeding or moving of electrodes or work for spot or seam welding or cutting |
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9/ | 127 | . | . | Means for tracking lines during arc welding or cutting (copying in general B23Q 35/00) [5] |
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9/ | 133 | . | . | Means for feeding electrodes, e.g. drums, rolls, motors [5] |
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9/ | 14 | . | making use of insulated electrodes |
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9/ | 16 | . | making use of shielding gas |
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9/ | 167 | . | . | and of a non-consumable electrode [5] |
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9/ | 173 | . | . | and of consumable electrode [5] |
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9/ | 18 | . | Submerged-arc welding |
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9/ | 20 | . | Stud welding |
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9/ | 22 | . | Percussion welding |
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9/ | 23 | . | taking account of the properties of the materials to be welded [3] |
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9/ | 235 | . | Preliminary treatment [3] |
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9/ | 24 | . | Features related to electrodes (form or composition of electrodes B23K 35/00) |
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9/ | 26 | . | . | Accessories for electrodes, e.g. ignition tips |
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9/ | 28 | . | . | Supporting devices for electrodes (not restricted to arc welding or cutting B23K 37/02) |
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9/ | 29 | . | . | . | Supporting devices adapted for making use of shielding means [5] |
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9/ | 30 | . | . | . | Vibrating holders for electrodes (B23K 9/022 takes precedence) [5] |
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9/ | 32 | . | Accessories (earthing connections H01R) |
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10/ | 00 | Welding or cutting by means of a plasma [5] |
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10/ | 02 | . | Plasma welding [5] |
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11/ | 00 | Resistance welding; Severing by resistance heating |
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11/ | 02 | . | Pressure butt welding |
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11/ | 04 | . | Flash butt welding |
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11/ | 06 | . | using roller electrodes |
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11/ | 08 | . | Seam welding not restricted to one of the preceding subgroups |
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11/ | 087 | . | . | for rectilinear seams [5] |
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11/ | 093 | . | . | for curved planar seams [5] |
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11/ | 10 | . | Spot welding; Stitch welding |
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11/ | 11 | . | . | Spot welding [5] |
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11/ | 12 | . | . | making use of vibrations |
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11/ | 14 | . | Projection welding |
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11/ | 16 | . | taking account of the properties of the material to be welded |
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11/ | 18 | . | . | of non-ferrous metals (B23K 11/20 takes precedence) |
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11/ | 20 | . | . | of different metals |
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11/ | 22 | . | Severing by resistance heating |
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11/ | 24 | . | Electric supply or control circuits therefor |
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11/ | 25 | . | . | Monitoring devices [5] |
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11/ | 26 | . | . | Storage discharge welding |
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11/ | 28 | . | Portable welding equipment |
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11/ | 30 | . | Features relating to electrodes (form or composition of electrodes B23K 35/00) |
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11/ | 31 | . | . | Electrode holders (not restricted to resistance welding or severing by resistance heating B23K 37/02) [5] |
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11/ | 34 | . | Preliminary treatment [3] |
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11/ | 36 | . | Auxiliary equipment (B23K 11/31 takes precedence) [3,5] |
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 | B23K 13/00 - B23K 103:24 |
