FIELD: electroplating processes and equipment, possibly application of copper coatings without use of intermediate sub-layer in machine engineering and instrument making.
SUBSTANCE: electrolyte contains: copper sulfate, 200 -250 g/l; sulfuric acid, 40 - 50 g/l; 2-n-tretbutyloxi-1,3-bis(butyl amino)propane, 1 - 3 mmol/l; and thio-salicylic acid, 1 - 3 mmol/l.
EFFECT: possibility for applying high-quality bright coatings having good cohesion with steel base minimally hydrogen-charged, preparation of electrolyte with high dispersing capability.
3 tbl, 3 ex
| Title | Year | Author | Number |
|---|---|---|---|
| AQUEOUS BRIGHT COPPER PLATING ELECTROLYTE | 2002 |
|
RU2239008C2 |
| AQUEOUS ELECTROLYTE FOR BRIGHT COPPER COATING OF STEEL BACKPLATES | 2004 |
|
RU2361969C2 |
| AQUEOUS BRIGHT COPPER PLATING ELECTROLYTE FOR | 1999 |
|
RU2175999C2 |
| ELECTROLYTE FOR THE BRIGHT COPPER COATING | 2004 |
|
RU2278908C1 |
| ELECTROLYTE FOR COPPER COATING STEEL PADS | 2008 |
|
RU2385366C1 |
| ELECTROLYTE FOR BRIGHTENED COPPER PLATING | 2001 |
|
RU2194098C1 |
| ELECTROLYTE FOR COPPER PLATING OF STEEL PARTS | 2002 |
|
RU2237755C2 |
| ELECTROLYTE FOR BRIGHT COPPER PLATING | 2002 |
|
RU2237754C2 |
| ELECTROLYTE FOR BRIGHT NICKEL PLATING | 2000 |
|
RU2194803C2 |
| BRIGHT COPPER PLATING ELECTROLYTE | 1999 |
|
RU2179203C2 |
