http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-104307899-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B21C1-22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B21C3-02 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B21C1-22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B21C3-02 |
| filingDate | 2014-11-13^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2016-06-29^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2016-06-29^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-104307899-B |
| titleOfInvention | A kind of special pipe processing technique |
| abstract | Invention describes a kind of special pipe processing technique, it comprises the steps: 1) running roller extruding preforming: select the hard state circle straight copper tube of suitable dimension parameter as shape tube blank to be processed, shape tube blank running roller is extruded preforming and obtains preliminary working blank；2) a drawing molding: put in drawing die by preliminary working blank, obtains the tubing of molding after a drawing.Described drawing die includes external mold and core print, and described external mold is to be made up of die sleeve and core rod, is provided with cavity in die sleeve, and described core rod is connected in die sleeve；Also being provided with cavity in core rod, described core print is located in the cavity of core rod, forms a drawing passage for drawing pipes between core rod and core print.The processing technique efficiency of the present invention is higher, the stability of product copper pipe better, after molding has good appearance, also improves yield rate simultaneously, reduces Product processing difficulty. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-108126993-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109848243-B http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109848243-A |
| priorityDate | 2014-11-13^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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