http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H07233406-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_2dcebf5a7f7ddc3b081f70e8ce1c4097 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B22F1-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B22F9-20 |
| filingDate | 1994-04-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f7cc1f25c64257f0e83446c86086cf52 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3aba8a7c0a345fd41454039c6f129925 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d7fbc916595ec72dc85aeb42250f6999 |
| publicationDate | 1995-09-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H07233406-A |
| titleOfInvention | Method for producing ultrafine composite raw material powder for cemented carbide |
| abstract | (57) [Summary] [Structure] Tungsten oxide, specific surface area 7.5 m 2 / a mixture containing at least g of cobalt oxide or chromium oxide, Alternatively, a mixture of the following vanadium oxide raw materials is heated to produce a W composite oxide (first step). The W W-Cr-Co system or W-Cr by reducing the complex oxide A -Co-V based metal composite is obtained (second step). The vanadium oxide raw material is subjected to a pretreatment step a in which a mixture of vanadium oxide and a cobalt oxide having a specific surface area of 7.5 m 2 / g or more is heated to produce a V complex oxide, and a partial reduction reaction. And a pretreatment step b for producing an oxide-metal composite. [Effect] It is possible to obtain an ultrafine composite raw material powder for producing a fine cemented carbide having a particle size of 0.2 μm or less. Moreover, since this method can be processed by a dry process, No need for new equipment and good economy. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2008106369-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-111604504-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-111940753-A |
| priorityDate | 1993-04-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 63.