|  | 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 Fulltext... Hierarchy... Expanded...D06Q 1/04); INHIBITING CORROSION OR INCRUSTATION IN GENERAL

|  | C23B |
ELECTROLYTIC SURFACE TREATMENT OF OR WITH METALS, e.g. ELECTROPLATING (Electrolytic processes or apparatus in general Fulltext... Hierarchy... Expanded...B01K); ELECTROLIFORMING; COATING METALS BY ELECTROPHORESIS

|  | C23B 1/00 |
Electrochemical processes and apparatus for removing non-metallic substances from metal articles, including pickling (Fulltext... Hierarchy... Expanded...C23B 5/68 takes precedence; cleaning or pickling by chemical means Fulltext... Hierarchy... Expanded...C23G)

|  | C23B 1/02 |
· | with electrical contact between the article and another metal in a solution and without externally applied e.m.f.

|  | C23B 1/04 |
· | Electrolytic degreasing

|  | C23B 1/06 |
· | Electrolytic pickling

|  | C23B 3/00 |
Electrolytic etching or polishing

|  | C23B 3/02 |
· | Etching

|  | C23B 3/04 |
· · | locally (using electro-erosion technique Fulltext... Hierarchy... Expanded...B23P 1/00)

|  | C23B 3/06 |
· | Polishing

|  | C23B 3/08 |
· · | heavy metals

|  | C23B 3/10 |
· · | light metals

|  | C23B 3/12 |
· | Apparatus (Fulltext... Hierarchy... Expanded...C23B 5/68 takes precedence)

|  | C23B 5/00 |
Electrolytic deposition of metals (electroforming Fulltext... Hierarchy... Expanded...C23B 7/00; by direct action of high concentrations of electric current applied by tool-like devices Fulltext... Hierarchy... Expanded...B23P 1/18)

|  | C23B 5/02 - C23B 5/46 |
Note(s) Group Fulltext... Hierarchy... Expanded...C23B 5/02 takes precedence over Fulltext... Hierarchy... Expanded...Fulltext... Hierarchy... Expanded...C23B 5/04-C23B 5/46

|  | C23B 5/02 |
· | Contact electoplating processes

|  | C23B 5/04 |
· | of iron

|  | C23B 5/06 |
· | of chromium

|  | C23B 5/08 |
· | of nickel or cobalt

|  | C23B 5/10 |
· | of zinc or cadmium

|  | C23B 5/12 |
· · | from acid baths

|  | C23B 5/14 |
· | of tin

|  | C23B 5/16 |
· | of lead

|  | C23B 5/18 |
· | of copper

|  | C23B 5/20 |
· · | from acid baths

|  | C23B 5/22 |
· | of light metals

|  | C23B 5/24 |
· | of noble metals

|  | C23B 5/26 |
· · | of silver

|  | C23B 5/28 |
· · | of gold

|  | C23B 5/30 |
· | of metals not mentioned before

|  | C23B 5/32 |
· | of alloys

|  | C23B 5/34 |
· · | containing more than 50% of copper

|  | C23B 5/36 |
· · · | of brass

|  | C23B 5/38 |
· · | of alloys containing more than 50 % tin

|  | C23B 5/40 |
· · | of alloys containing more than 50 % lead

|  | C23B 5/42 |
· · | of alloys containing more than 50 % gold

|  | C23B 5/44 |
· · | of alloys containing more than 50 % silver

|  | C23B 5/46 |
· | in the presence of organic brightening agents

|  | C23B 5/48 |
· | Special features in the process

|  | C23B 5/50 |
· · | Depositing more than one layer of the same or of different metals

|  | C23B 5/52 |
· · | Thermal after-treatment

|  | C23B 5/54 |
· · | Making coatings with varying thickness

|  | C23B 5/56 |
· · | Electroplating tubes

|  | C23B 5/58 |
· · | Electroplating wire or matel bands

|  | C23B 5/60 |
· · | for coating articles having surfaces to which coatings cannot be readily applied

|  | C23B 5/62 |
· · · | by pre-treatment of the articles

|  | C23B 5/64 |
· · · · | Applying conductive coatings to non-metallic articles for electroplating purposes (metal coatings on glass Fulltext... Hierarchy... Expanded...C03C 17/06)

|  | C23B 5/66 |
· · | Using protective surface layers on electrolytic baths

|  | C23B 5/68 |
· | Apparatus specially adapted for electroplating purposes (apparatus for continuously conveying articles in baths, automatic conveyers Fulltext... Hierarchy... Expanded...B65G)

|  | C23B 5/70 |
· · | Suspending or supporting devices; Racks

|  | C23B 5/72 |
· · | Electrodes

|  | C23B 5/74 |
· · · | Shape

|  | C23B 5/76 |
· · · | for electroplating by hand

|  | C23B 5/78 |
· · | Horizontal barrels; Oblique barrels; Oscillating cradile plates

|  | C23B 7/00 |
Electroforming

|  | C23B 7/02 |
· | Making tubes

|  | C23B 7/04 |
· | Making wire, bands, or foils

|  | C23B 7/06 |
· | Making wholly-metallic mirrors

|  | C23B 7/08 |
· | Making easily-removable coatings; Removing the coatings

|  | C23B 9/00 |
Forming oxide layers on metals by anodising

|  | C23B 9/02 |
· | on aluminium or aluminium alloys

|  | C23B 9/04 |
· · | on sliding-clasp fasteners

|  | C23B 9/06 |
· | on magnesium or magnesium alloys

|  | C23B 11/00 |
Forming non-metallic layers including metal oxide layers on metals by electrochemical processes (by anodising metals Fulltext... Hierarchy... Expanded...C23B 9/00)

|  | C23B 11/02 |
· | on light metals

|  | C23B 13/00 |
Coating of metals by electrophoresis