http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-101559015-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_43b4872407892b1f278ddd5766459ac4 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61F9-007 |
| filingDate | 2009-06-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_590884b59a9e13838d66bace590991a4 |
| publicationDate | 2009-10-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-101559015-A |
| titleOfInvention | CVD diamond thick-film ophthalmology scalpel, method and device for manufacturing same |
| abstract | The invention provides a CVD diamond thick-film ophthalmology scalpel, a method and a device for manufacturing the same. A planetary grinding-polishing mode is adopted to ensure that every crystal grain on the surface of a CVD diamond thick film can be ground in the softest direction thereof. An air bearing is adopted as a main shaft of a grinding-polishing machine to eliminate vibration and impact in a grinding-polishing process. A thermochemical grinding method is adopted, namely diamond atoms can be dissolved in iron or nickel and other metal crystal lattice and then be corroded at a high temperature of above 700 DEG C. The invention has the advantages of utilizing the high-temperature diffusion principle of diamond, innovatively introducing a thermochemical diffusing-grinding mode to grind the CVD diamond thick-film ophthalmology scalpel, overcoming long-standing problems of machining the CVD diamond thick film and obtaining good grinding speed, high diamond surface quality, precise shape precision and blade quality. A knife point of the CVD diamond thick-film ophthalmology scalpel is at an angle of between 35 and 50 degrees; a blade of the scalpel is at a wedge angle of between 30 and 40 degrees; the flatness of the blade reaches 0.1 mu m, namely the blade is perfect under a 500-5,000 times microscope; the radius of a circular arc of the blade is 0.05 mu m; and the surface roughness of the scalpel is less than Ra0.005 mu m. |
| priorityDate | 2009-06-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 16.