http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103624102-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B21C37-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C23G1-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B21C1-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C23C22-07 |
| filingDate | 2013-12-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2015-11-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2015-11-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-103624102-B |
| titleOfInvention | The processing method of cold drawing oil earthen pipe |
| abstract | The invention provides the processing method of cold drawing oil earthen pipe, comprise the following steps: step one: steel pipe is taken the lead; Step 2: steel tube drilling; Step 3: acid cleaning of steel tube; Step 4: steel pipe phosphatization; Step 5: steel pipe saponification; Step 6: Tube Drawing.Can solve the problem of current cold-drawing technology existing defects, be applicable to the oil cylinder pipe cold-drawn needing significantly to reduce wall thickness, and the quality of oil cylinder pipe after can improving cold-drawn, ensure the uniform wall thickness of oil cylinder pipe after cold-drawn, surfaces externally and internally is smooth. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-112080686-A |
| priorityDate | 2013-12-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 21.