http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-1109293-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_83ec3c6f0abecd473ea17f3c2ff70524 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22C21-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C23F1-36 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22F1-043 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C25D11-14 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22C21-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C25D11-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C23F1-36 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22F1-043 |
| filingDate | 1965-05-21^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1968-04-10^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-1109293-A |
| titleOfInvention | Anodized finish on aluminum alloys |
| abstract | A sparkling appearance is produced on an Albase alloy containing 5 to 9% Si by homogenizing the alloy by heating for 50 to 70 hours at a temperature below the eutectic temperature of the alloy, ca. 1000 DEG C., hot rolling the alloy to form a plate, preferentially removing Al from the alloy surface layer to expose protruding particles of Si, and anodizing the treated alloy to produce an anodic coating containing a random distribution of embedded Si particles. The Al removal may be effected with NaOH solution preceded by a HF-HNO3 or if desired a H3PO4-HNO3 pre-etc and may be followed by a HF-HNO3 desmutting dip. Anodizing is effected at 70 DEG F. in sulphuric acid with a C.D. of 10 to 20 A.S.F. with an initial voltage of 17.5 and a terminal voltage of 22. The treated alloy may also contain 0.4 to 0.7% Cr or a small amount of Fe. |
| priorityDate | 1964-06-03^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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