C
SECTION C — CHEMISTRY AND METALLURGY
  
METALLURGY
 C23
WORKING AND TREATMENT OF METALS, OTHER THAN BY MECHANICAL MEANS; COVERING MATERIALS WITH METALS (decorating textiles by metallising D06Q 1/04); INHIBITING CORROSION OR INCRUSTATION IN GENERAL
 C23C
APPARATUS AND PROCESSES FOR WHICH PROVISION IS NOT MADE ELSEWHERE, e.g. IN CLASSES B05, B44, C03C, C08, OR IN C23B, C23D, C23F, F27B, FOR COVERING METALS OR COVERING MATERIALS WITH METALS; DIFFUSION PROCESSES FOR SURFACE TREATMENT OF METALS
 C23C 1/00
Covering by treatment with liquid metal, e.g. hot dipping processes (metal spraying C23C 7/00)
 C23C 1/02
·  Covering with zinc or cadmium or alloys thereof
 C23C 1/04
·  Covering with tin or alloys thereof
 C23C 1/06
·  Covering with lead or alloys thereof
 C23C 1/08
·  Covering with aluminium or alloys thereof
 C23C 1/10
·  Covering with other metals or alloys
 C23C 1/12
·  Fluxes or coverings for molten metal baths
 C23C 1/14
·  Apparatus (furnaces F27)
 C23C 1/16
·  Rubbing the surface with the molten metal
 C23C 3/00
Covering with metals by treatment with solutions or suspensions of metal compounds
 C23C 3/02
·  in the presence of reducing agents
 C23C 3/04
·  followed by thermal decomposition of the metal compound
 C23C 5/00
Cladding (mechanical part in the appropriate metal-working classes, e.g. B23P 3/00)
 C23C 7/00
Metal spraying
 C23C 9/00
Cementation by diffusion processes using solids or liquids
 C23C 9/02
·  Box coating with metals, i.e. heating the workpiece in metal dust
 C23C 9/04
·  Box coating with substances other than metals
 C23C 9/06
·  Box carburising
 C23C 9/08
·  ·  of iron
 C23C 9/10
·  Cementation by hot dipping in molten salts, e.g. carburising, nitriding, carbo-nitriding
 C23C 9/12
·  ·  Carburising iron
 C23C 9/14
·  ·  Nitriding iron
 C23C 9/16
·  ·  Carbo-nitriding iron
 C23C 11/00
Gas plating by thermal decomposition or reduction of gases on heated surfaces or by glow or arc discharge followed by diffusion into the surfaces
 C23C 11/02
·  to form metal coatings, e.g. by carbonyl processes
 C23C 11/04
·  ·  Chromising
 C23C 11/06
·  ·  Siliconising
 C23C 11/08
·  to form coatings of inorganic compounds of metals
 C23C 11/10
·  Gas carburising
 C23C 11/12
·  ·  of iron
 C23C 11/14
·  Gas nitriding; Gas carbo-nitriding
 C23C 11/16
·  ·  Nitriding iron
 C23C 11/18
·  ·  Carbo-nitriding iron
 C23C 13/00
Forming coatings on metals by condensation of vapours, e.g. in vacuo; Forming coatings on materials by condensation of metal vapours
 C23C 13/02
·  coatings of metals
 C23C 13/04
·  coatings of materials other than metals
 C23C 13/06
·  Making contoured surfaces, e.g. shadow casting
 C23C 13/08
·  Apparatus (furnaces F27)
 C23C 13/10
·  ·  for continuous working
 C23C 13/12
·  ·  Vapour sources, e.g. filament heaters, crucibles, electron bombardment heating apparatus (for gettering in electric discharge tubes H01J 7/18)
 C23C 15/00
Cathodic sputtering; Apparatus therefor
 C23C 17/00
Methods not covered elsewhere for coating materials with metals
 C23C 17/02
·  by reducing non-metallic coatings to metal