http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103741181-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C25D3-48 |
| filingDate | 2014-01-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2016-01-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2016-01-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-103741181-B |
| titleOfInvention | A kind of many coordination agents cyanide-free gold electroplating plating solution and electrogilding technique |
| abstract | A kind of many coordination agents cyanide-free gold electroplating plating solution and electrogilding technique, belong to electrogilding technical field.Described plating solution is formulated by main coordination agent, auxiliary complexing agent, potassium hydroxide, salt of wormwood, potassium auric chloride, combined additive and ultrapure water.Electrogilding technique is as follows: one, the pre-treatment of matrix; Two, nickel layer in the middle of plating; Three, electrogilding: after nickel layer, matrix carries out ultrapure washing in the middle of plating, then directly enters in the coating bath containing many coordination agents cyanide-free gold electroplating plating solution, carries out electrogilding, after completing plating, from electroplate liquid, take out sample, use distilled water clean surface, cold air drying.Present invention uses the coordination agent of double complexing agents as gold ion in electrogilding plating solution, obtain that a kind of current efficiency significantly improves compared with single coordination agent system, coating crystallization is more smooth, fine and close, the current density range of application is wide, temperature requirement is wide in range and ensure the cyanide-free gold electroplating system of Deposit appearance golden bright. |
| priorityDate | 2014-01-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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