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C23F 1/00
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Etching metallic material by chemical means |
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C23F 1/02
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Local etching |
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C23F 1/04
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Chemical milling |
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C23F 1/06
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Sharpening files |
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C23F 1/08
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Apparatus, e.g. for photomechanical printing surfaces |
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C23F 1/10
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Etching compositions |
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C23F 1/12
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Gaseous compositions |
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C23F 1/14
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Aqueous compositions |
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C23F 1/16
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Acidic compositions |
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C23F 1/18
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Acidic compositions for etching copper or alloys thereof |
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C23F 1/20
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Acidic compositions for etching aluminium or alloys thereof |
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C23F 1/22
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Acidic compositions for etching magnesium or alloys thereof |
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C23F 1/24
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Acidic compositions for etching silicon or germanium |
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C23F 1/26
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Acidic compositions for etching refractory metals |
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C23F 1/28
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Acidic compositions for etching iron group metals |
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C23F 1/30
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Acidic compositions for etching other metallic material |
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C23F 1/32
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Alkaline compositions |
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C23F 1/34
|
Alkaline compositions for etching copper or alloys thereof |
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C23F 1/36
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Alkaline compositions for etching aluminium or alloys thereof |
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C23F 1/38
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Alkaline compositions for etching refractory metals |
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C23F 1/40
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Alkaline compositions for etching other metallic material |
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C23F 1/42
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Aqueous compositions containing a dispersed water-immiscible liquid |
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C23F 1/44
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Compositions for etching metallic material from a metallic material substrate of different composition |
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C23F 1/46
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Regeneration of etching compositions |
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C23F 3/00
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Brightening metals by chemical means |
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C23F 3/02
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Light metals |
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C23F 3/03
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Light metals with acidic solutions |
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C23F 3/04
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Heavy metals |
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C23F 3/06
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Heavy metals with acidic solutions |
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C23F 4/00
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Processes for removing metallic material from surfaces, not provided for in group or |
|
C23F 4/02
|
Processes for removing metallic material from surfaces, not provided for in group or by evaporation |
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C23F 4/04
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Processes for removing metallic material from surfaces, not provided for in group or by physical dissolution |
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C23F 11/00
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Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent |
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C23F 11/02
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Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in air or gases by adding vapour phase inhibitors |
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C23F 11/04
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Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in markedly acid liquids |
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C23F 11/06
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Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in markedly alkaline liquids |
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C23F 11/08
|
Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids |
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C23F 11/10
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Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids using organic inhibitors |
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C23F 11/12
|
Oxygen-containing compounds |
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C23F 11/14
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Nitrogen-containing compounds |
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C23F 11/16
|
Sulfur-containing compounds |
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C23F 11/18
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Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids using inorganic inhibitors |
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C23F 11/167
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Phosphorus-containing compounds |
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C23F 11/173
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Macromolecular compounds |
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C23F 13/00
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Inhibiting corrosion of metals by anodic or cathodic protection |
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C23F 13/02
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Inhibiting corrosion of metals by anodic or cathodic protection cathodic; Selection of conditions, parameters or procedures for cathodic protection, e.g. of electrical conditions |
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C23F 13/04
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Controlling or regulating desired parameters |
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C23F 13/06
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Constructional parts, or assemblies of cathodic-protection apparatus |
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C23F 13/08
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Electrodes specially adapted for inhibiting corrosion by cathodic protection; Manufacture thereof; Conducting electric current thereto |
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C23F 13/10
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Electrodes characterised by the structure |
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C23F 13/12
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Electrodes characterised by the material |
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C23F 13/14
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Material for sacrificial anodes |
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C23F 13/16
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Electrodes characterised by the combination of the structure and the material |
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C23F 13/18
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Means for supporting electrodes |
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C23F 13/20
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Conducting electric current to electrodes |
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C23F 13/22
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Monitoring arrangements therefor |
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C23F 14/00
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Inhibiting incrustation in apparatus for heating liquids for physical or chemical purposes |
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C23F 14/02
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Inhibiting incrustation in apparatus for heating liquids for physical or chemical purposes by chemical means |
|
C23F 15/00
|
Other methods of preventing corrosion or incrustation |
|
C23F 17/00
|
Multi-step processes for surface treatment of metallic material involving at least one process provided for in class and at least one process covered by subclass or or class |
