| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_6b7277eec2a9218a9d9a29ea3d2267b8 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C25D11-024
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C25D11-026
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C25D11-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C25D11-06 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C25D11-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C25D11-06 |
| filingDate |
1997-12-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_06ececfc55878ef1c5cc52ffce51c7d2 |
| publicationDate |
2000-11-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-1050606-A1 |
| titleOfInvention |
Method for producing hard protection coatings on articles made of aluminium alloys |
| abstract |
The proposed invention relates to the sphere of plasma electrolytic oxide coating ofnaluminium alloys. The method incorporates anode-cathode oxide coating in annalkaline electrolyte at a temperature of 15-50°C, using 50-60 Hz frequencynalternating current. In the initial stage of the process oxide coating is carried on forn5-90 seconds at a current density of 160-180 A/dm 2 , then the current density isndropped to 3-30 A/dm 2 and the process is continued in a regimen of spontaneousndiminution of power demand without on-line adjustment of the regimen until the setncoating thickness is achieved. The alkaline electrolyte used is an aqueous solution ofnalkaline metal hydroxide at 1-5 g/l, an alkaline metal silicate at 2-15 g/l, an alkalinenmetal pyrophosphate at 2-20 g/l and peroxide compounds at 2-7 g/l (in terms of H 2 O 2 n- 30%). The proposed method enables the protective properties of ceramic oxidencoatings to be enhanced through an increase in the micro-hardness, density andnstrength of adhesion to the substrate without any additional energy outlay or timenrequired. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9644284-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-0222902-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2005078164-A2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2012175429-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2005078164-A3
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2006075176-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102732932-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-102005011322-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2006007972-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-104233427-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2012052532-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-2372041-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6919012-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-2372041-B
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-0250343-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/FR-2966533-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7780838-B2 |
| priorityDate |
1997-12-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |