http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109513766-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B21C37-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B21C37-30 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B21C37-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B21C37-30 |
| filingDate | 2018-11-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-02-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-02-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-109513766-B |
| titleOfInvention | A kind of manufacturing method of high concentricity martensitic stainless steel seamless pipe |
| abstract | The invention discloses a method for manufacturing a high concentricity martensitic stainless steel seamless pipe, comprising the following steps: processing a bar blank; drilling a central through hole; precision boring the central hole; finishing turning the outer circle to ensure concentricity; Cold rolling; cleaning of cold rolled pipes; annealing of rolled pipes; next cold rolling; finished heat treatment of rolled pipes; finishing of finished pipes; non-destructive testing of finished pipes. The manufacturing method is simple and practical, reasonable in cost and good in cost performance, and the finished X12Cr13 martensitic stainless steel pipe has high concentricity, which can ensure that all properties fully meet the requirements for use, and is suitable for mass production. |
| priorityDate | 2018-11-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 23.