FIELD: electrodeposition, in particular copper plating of steel.
SUBSTANCE: invention relates to electrolyte for copper plating useful in machine-building and instrument engineering. Claimed electrolyte contains copper sulfate 100-120 g, ammonium sulfate 220-250 g, polyethylene-polyamine 20-40 g, 25 % aqueous ammonia solution 80-100 ml, bromothymol blue 1-3 mmol/l, and water up to 1 l. Electrolyte makes it possible to obtain high quality well adhered electroplated coatings without using of intermediate layer, essentially without of steel base hydrogen charging.
EFFECT: electroplated coatings of high quality.
3 tbl, 3 ex
| Title | Year | Author | Number |
|---|---|---|---|
| BRIGHT COPPER PLATING ELECTROLYTE | 1999 |
|
RU2179203C2 |
| ELECTROLYTE FOR BRIGHT COPPER PLATING | 2002 |
|
RU2237754C2 |
| ELECTROLYTE FOR COPPER COATING STEEL PADS | 2008 |
|
RU2385366C1 |
| AQUEOUS BRIGHT COPPER PLATING ELECTROLYTE FOR | 1999 |
|
RU2175999C2 |
| AQUEOUS ELECTROLYTE FOR BRIGHT COPPER PLATING | 2003 |
|
RU2323275C2 |
| AQUEOUS ELECTROLYTE FOR BRIGHT COPPER COATING OF STEEL BACKPLATES | 2004 |
|
RU2361969C2 |
| BRIGHT COPPER PLATING ELECTROLYTE | 1995 |
|
RU2103420C1 |
| BRIGHT COPPER PLATING ELECTROLYTE | 2002 |
|
RU2215829C1 |
| AQUEOUS BRIGHT COPPER PLATING ELECTROLYTE | 2002 |
|
RU2239008C2 |
| ELECTROLYTE FOR PRECIPITATION OF NICKEL-IRON ALLOY COATS ON STEEL SUBSTRATES | 2003 |
|
RU2314366C2 |
