http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-110616344-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22C29-067 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22C29-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22C1-053 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22C29-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22C1-05 |
| filingDate | 2018-06-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2020-07-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2020-07-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-110616344-B |
| titleOfInvention | Method for preparing ultrafine cemented carbide by using nanoscale grain inhibitor vanadium carbide |
| abstract | The invention discloses a method for preparing ultrafine cemented carbide by adopting nanoscale grain inhibitor vanadium carbide. The method includes: hydrothermally generating vanadium-containing metal-organic framework materials with vanadium ions and organic ligands, uniformly mixing them with cemented carbides to form cemented carbide composite materials, and then performing ball milling, granulation and pressing. Forming, sintering and other treatments to obtain fine-grained cemented carbide. In the present invention, the vanadium-containing metal-organic framework material is added as the precursor of vanadium carbide to the cemented carbide component, and the vanadium-containing metal-organic framework material can be more uniformly distributed than the usual addition of vanadium carbide powder in the ball milling process. In the wax stage, nano-sized vanadium carbide will be carbonized in situ at high temperature to achieve the inhibition of grain growth during the sintering process. This method can not only significantly improve the uniformity of the distribution of vanadium carbide in the cemented carbide, but also form The inhibitory effect of nano-sized vanadium carbide on grain growth is more obvious. |
| priorityDate | 2018-06-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 49.