http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103028720-B
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_dd730ccd5675a86305f9c993b9b98ad9 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_e9998c6487f425e17c53757a44be9def |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B22D19-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B22D19-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B22F5-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B22F1-00 |
| filingDate | 2012-12-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2014-11-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_507aed20fb24d56ff0175f99dc73c15a http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cff7bd0a258a91aad119341e6acf7356 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d7935b65ba6e34f3779530a75d56f1d0 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f55536e8b8ad09d71c6f60da6f45963b http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e3fdc5369e31739aaf21e71dceb4f550 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5b594efbd526815198f4e3e1cb65b1e5 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_fe0fd2793afa9e40f5456ad52e16ead7 |
| publicationDate | 2014-11-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-103028720-B |
| titleOfInvention | Manufacturing method of self-drilling anchor rod bit |
| abstract | The invention discloses a manufacturing method of a self-drilling anchor rod bit, and belongs to a production method of an anchor rod. The manufacturing method comprises the following steps that: a cemented carbide material briquette is placed in a casting mold of the anchor rod bit, and molten iron or molten steel is injected into the casting mold; and after the molten iron or molten steel is cooled in the mold, a shape of a matrix of the anchor rod bit is formed, and the matrix is in fusion welding with the cemented carbide material briquette into a whole. According to the nominal content of each elemental composition, the iron-based cemented carbide briquette formed by uniformly mixing and sintering tungsten carbide particles, vanadium pentoxide, colloidal graphite, diamond particles with iron matrix pre-alloy powder can replace the traditional cemented alloy manufactured by metal cobalt and tungsten carbide which are adhered to each other to prepare the self-drilling anchor rod bit. The blade of the anchor rod bit is in fusion welding on the matrix directly, and the subsequent mechanical processing of the anchor rod bit is not needed; and meanwhile, the operation of the method is simple, the production efficiency of the anchor rod bit is obviously improved, and the production cost is effectively reduced because of using the iron-based cemented carbide briquette. |
| priorityDate | 2012-12-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 46.