| 摘要 |
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 |
