http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102649200-B
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_51fc6b1419b7f1265a7add86f916f21a |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B23K5-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B29-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B23K28-02 |
| filingDate | 2011-12-29^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2015-07-01^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5511667fc051f0b66d1be39316bd6cf2 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4b063915e1845de54455e5330b2c0cc1 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8e5735b6bcb0c90a3296e1e60d0678a9 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_169217b64f3d89924b49b8097c8b5e63 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3f083b77b95c8f2edff9395cdcffcb0e http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ddaebdf31c2cd13a6337a320b19ab83b http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2ae6ffbe0fe1b8ee7f132685969b535b http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9b83fa4e8fd8227dac61c3a6034dcf76 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_edcf0298adac3097d1ef7023039a9f6a http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_935757440e90539c3494952beafab5d0 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9c35ed654dae67250f492b99f972bd44 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_876ab08181335edbccc7a5366bd47c21 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0b98abbff916afa08101d57cd562d97e |
| publicationDate | 2015-07-01^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-102649200-B |
| titleOfInvention | Arrangement method of carbide blades on well drilling inside cutter bit and cutter bit |
| abstract | The invention discloses an arrangement method of carbide blades on a welling drilling inside cutter bit and the cutter bit. The method comprises the following steps of: surfacing a layer of tungsten carbide particle surfacing welding body (2) on a front cutter face of a cutter body (1) by utilizing a tungsten carbide welding rod; piling up the front end face of the tungsten carbide particle surfacing welding body (2) to form a rectangular plane (3); and inlaying the carbide blades on the rectangular plane (3) according to a certain rule while piling up the rectangular plane (3), wherein the inlaying depth is larger than 1/2 of the height C of the carbide blades. The invention adopts the carbide blades with cutting edges and the staggered pattern, the cutting edges enable the cutting resistance to be less, and the cutting speed to be improved greatly; the staggered pattern forms interruption cutting, and the cuttings are shorter so as to be easier to be brought to the ground or dropped into a well bottom, so that jamming of a drilling tool is prevented, and the cutting construction is safer and more convenient. The invention provides more convenient conditions for faster and better implementation of casing pipe replacement operation under the well. |
| priorityDate | 2011-12-29^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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