IPC 7 English version
 
C23-C23C01060
  C23C 12/00 - C23C 16/56  

SECTION C – CHEMISTRY; METALLURGY


C 23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL (by metallising textiles D06M 11/83; decorating textiles by locally metallising D06Q 1/04); CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL (for specific applications, see the relevant places, e.g. for manufacturing resistors H01C 17/06); INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL (treating metal surfaces or coating of metals by electrolysis or electrophoresis C25D, C25F) [2]


C 23 CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL (applying liquids or other fluent materials to surfaces in general B05; making metal-coated products by extrusion B21C 23/22; covering with metal by connecting pre-existing layers to articles, see the relevant places, e.g. B21D 39/00, B23K; working of metal by the action of a high concentration of electric current on a workpiece using an electrode B23H; metallising of glass C03C; metallising mortars, concrete, artificial stone, ceramics or natural stone C04B 41/00; paints, varnishes, laquers C09D; enamelling of, or applying a vitreous layer to, metals C23D; inhibiting corrosion of metallic material or incrustation in general C23F; single-crystal film growth C30B; details of scanning-probe apparatus, in general G12B 21/00; manufacture of semiconductor devices H01L; manufacture of printed circuits H05K) [4]


Note

 In this subclass, an operation is considered as pretreatment or after-treatment when it is specially adapted for, but quite distinct from, the coating process concerned and constitutes an independent operation. If an operation results in the formation of a permanent sub- or upper layer, it is not considered as pretreatment or after-treatment and is classified as a multi-coating process.  [4]


Subclass Index

COATING USING MOLTEN COATING MATERIAL 

C23C 2/00 to C23C 6/00 

SOLID STATE DIFFUSION COATING 

C23C 8/00 to C23C 12/00 

COATING BY VACUUM EVAPORATION, SPUTTERING OR ION-IMPLANTATION 

C23C 14/00 

CHEMICAL COATING 

C23C 16/00 to C23C 20/00 

CONTACT PLATING 

C23C 18/00 

CHEMICAL SURFACE TREATMENT 

C23C 22/00 

COATING USING INORGANIC POWDER 

C23C 24/00 

OTHER COATING, MULTI-LAYER COATING 

C23C 26/00, C23C 28/00 

COMPOSITION OF METALLIC COATING MATERIAL 

C23C 30/00 


Coating by applying the coating material in the molten state (casting B22D, e.g. B22D 19/08, B22D 23/04, B29; built-up welding B23K, e.g. B23K 5/18, B23K 9/04)  [4]


2/

00Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor  [4]

2/

02.Pretreatment of the material to be coated, e.g. for coating on selected surface areas (C23C 2/30 takes precedence)  [4]

2/

04.characterised by the coating material  [4]

2/

06..Zinc or cadmium or alloys based thereon  [4]

2/

08..Tin or alloys based thereon  [4]

2/

10..Lead or alloys based thereon  [4]

2/

12..Aluminium or alloys based thereon  [4]

2/

14.Removing excess of molten coatings; Controlling or regulating the coating thickness (controlling or regulating thickness in general G05D 5/02)  [4]

2/

16..using fluids under pressure, e.g. air knives  [4]

2/

18...Removing excess of molten coatings from elongated material  [4]

2/

20....Strips; Plates  [4]

2/

22..by rubbing, e.g. using knives  [4]

2/

24..using magnetic or electric fields  [4]

2/

26.After-treatment (C23C 2/14 takes precedence)  [4]

2/

28..Thermal after-treatment, e.g. treatment in oil bath  [4]

2/

30.Fluxes or coverings on molten baths (C23C 2/22 takes precedence)  [4]

2/

32.using vibratory energy applied to the bath or substrate (C23C 2/14 takes precedence)  [4]

2/

34.characterised by the shape of the material to be treated (C23C 2/14 takes precedence)  [4]

2/

36..Elongated material  [4]

2/

38...Wires; Tubes  [4]

2/

40...Plates; Strips  [4]


4/

00Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge (spraying guns B05B; making alloys containing fibres or filaments by thermal spraying of metal C22C 47/16; plasma guns H05H) [4]

4/

02.Pretreatment of the material to be coated, e.g. for coating on selected surface areas  [4]

4/

04.characterised by the coating material  [4]

4/

06..Metallic material  [4]

4/

08...containing only metal elements  [4]

4/

10..Oxides, borides, carbides, nitrides, silicides or mixtures thereof  [4]

4/

12.characterised by the method of spraying  [4]

4/

14..for covering elongated material  [4]

4/

16...Wires; Tubes  [4]

4/

18.After-treatment  [4]


6/

00Coating by casting molten material on the substrate  [4]


Solid state diffusion into metallic material surfaces  [4]


8/

00Solid state diffusion of only non-metal elements into metallic material surfaces (diffusion of silicon C23C 10/00); Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals (C23C 14/00 takes precedence) [4]

8/

02.Pretreatment of the material to be coated (C23C 8/04 takes precedence)  [4]

8/

04.Treatment of selected surface areas, e.g. using masks  [4]

8/

06.using gases (C23C 8/36 takes precedence)  [4]

8/

08..only one element being applied  [4]

8/

10...Oxidising  [4]

8/

12....using elemental oxygen or ozone  [4]

8/

14.....Oxidising of ferrous surfaces  [4]

8/

16....using oxygen-containing compounds, e.g. H2O, CO2  [4]

8/

18.....Oxidising of ferrous surfaces  [4]

8/

20...Carburising  [4]

8/

22....of ferrous surfaces  [4]

8/

24...Nitriding  [4]

8/

26....of ferrous surfaces  [4]

8/

28..more than one element being applied in one step  [4]

8/

30...Carbo-nitriding  [4]

8/

32....of ferrous surfaces  [4]

8/

34..more than one element being applied in more than one step  [4]

8/

36..using ionised gases, e.g. ionitriding (discharge tubes with provision for introducing objects or material to be exposed to the discharge H01J 37/00)  [4]

8/

38...Treatment of ferrous surfaces  [4]

8/

40.using liquids, e.g. salt baths, liquid suspensions  [4]

8/

42..only one element being applied  [4]

8/

44...Carburising  [4]

8/

46....of ferrous surfaces  [4]

8/

48...Nitriding  [4]

8/

50....of ferrous surfaces  [4]

8/

52..more than one element being applied in one step  [4]

8/

54...Carbo-nitriding  [4]

8/

56....of ferrous surfaces  [4]

8/

58..more than one element being applied in more than one step  [4]

8/

60.using solids, e.g. powders, pastes (using liquid suspensions of solids C23C 8/40)  [4]

8/

62..only one element being applied  [4]

8/

64...Carburising  [4]

8/

66....of ferrous surfaces  [4]

8/

68...Boronising  [4]

8/

70....of ferrous surfaces  [4]

8/

72..more than one element being applied in one step  [4]

8/

74...Carbo-nitriding  [4]

8/

76....of ferrous surfaces  [4]

8/

78..more than one element being applied in more than one step  [4]

8/

80.After-treatment  [4]


10/

00Solid state diffusion of only metal elements or silicon into metallic material surfaces  [4]

10/

02.Pretreatment of the material to be coated (C23C 10/04 takes precedence)  [4]

10/

04.Diffusion into selected surface areas, e.g. using masks  [4]

10/

06.using gases  [4]

10/

08..only one element being diffused  [4]

10/

10...Chromising  [4]

10/

12....of ferrous surfaces  [4]

10/

14..more than one element being diffused in one step  [4]

10/

16..more than one element being diffused in more than one step  [4]

10/

18.using liquids, e.g. salt baths, liquid suspensions  [4]

10/

20..only one element being diffused  [4]

10/

22...Metal melt containing the element to be diffused  [4]

10/

24...Salt bath containing the element to be diffused  [4]

10/

26..more than one element being diffused  [4]

10/

28.using solids, e.g. powders, pastes  [4]

10/

30..using a layer of powder or paste on the surface (using liquid suspensions of solids C23C 10/18)  [4]

10/

32...Chromising  [4]

10/

34..Embedding in a powder mixture, i.e. pack cementation  [4]

10/

36...only one element being diffused  [4]

10/

38....Chromising  [4]

10/

40.....of ferrous surfaces  [4]

10/

42......in the presence of volatile transport additives, e.g. halogenated substances  [4]

10/

44....Siliconising  [4]

10/

46.....of ferrous surfaces  [4]

10/

48....Aluminising  [4]

10/

50.....of ferrous surfaces  [4]

10/

52...more than one element being diffused in one step  [4]

10/

54....Diffusion of at least chromium  [4]

10/

56.....and at least aluminium  [4]

10/

58...more than one element being diffused in more than one step  [4]

10/

60.After-treatment  [4]

   C23C 12/00 - C23C 16/56