(0)C23C:0/4:
IPC6
SECTION C - CHEMISTRY; METALLURGY
COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC...
C23C
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C 23

 COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL (by metallising textiles D 06 M 11/83; decorating textiles by locally metallising D 06 Q 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 H 01 C 17/06); INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL (treating metal surfaces or coating of metals by electrolysis or electrophoresis C 25 D, C 25 F) [2]
 

Note
 

In this class, the following expression is used with the meaning incicated:
 

-

 "metallic material" covers:
 

(a)

 metals; [4]
 

(b)

 alloys (attention is drawn to the Note following the title of subclass C 22 C).

C 23 C

 COATING 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 B 05; making metal-coated products by extrusion B 21 C 23/22; covering with metal by connecting pre-existing layers to articles, see the relevant places, e.g. B 21 D 39/00, B 23 K; working of metal by the action of a high concentration of electric current on a workpiece using an electrode B 23 H; metallising of glass C 03 C; metallising mortars, concrete, artificial stone, ceramics or natural stone C 04 B 41/00; paints, varnishes, laquers C 09 D; enamelling of, or applying a vitreous layer to, metals C 23 D; inhibiting corrosion of metallic material or incrustation in general C 23 F; single-crystal film growth C 30 B; manufacture of semiconductor devices H 01 L; manufacture of printed circuits H 05 K ) [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]

 

 

 

Coating by applying the coating material in the molten state (casting B 22 D, e.g. B 22 D 19/08, B 22 D 23/04, B 29; built-up welding B 23 K, e.g. B 23 K 5/18, B 23 K 9/04) [4]
 

 2
/ 00 Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therfor [4]

2
/ 02 • Pretreatment of the material to be coated, e.g. for coating on selected surface areas (C 23 C 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 G 05 D 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 (C 23 C 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 (C 23 C 2/22 takes precedence) [4]  

2
/ 32 • using vibratory energy applied to the bath or substrate (C 23 C 2/14 takes precedence) [4]  

2
/ 34 • characterised by the shape of the material to be treated (C 23 C 2/14 takes precedence) [4]  

2
/ 36 • • Elongated material [4]  

2
/ 38 • • • Wires; Tubes [4]  

2
/ 40 • • • Plates; Strips [4]  
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