http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-944949-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_e7b59574be3a6f45c6ef63a1ef657320 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B21C35-023 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B21C23-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B21C35-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B21C37-202 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B21C23-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B21C37-20 |
| filingDate | 1961-11-21^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c7a83b34c39f56b496e9f7198cc3363c |
| publicationDate | 1963-12-18^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-944949-A |
| titleOfInvention | Improvements in or relating to the extrusion of metals |
| abstract | 944,949. Extruding; rolling. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Nov. 12, 1962 [Nov. 21, 1961], No. 41527/61. Headings B3M and B3P. Apparatus for forming a longitudinallyfinned metal tube comprises a container 1 for receiving a billet 45 to be extruded between an axially movable mandrel 8 and a die 4 into a plain tube, and a series of grooved rolls 15 for forming longitudinal fins on the tube. In the manufacture of a sheath of beryllium for a nuclear fuel element, a pre-heated hollow beryllium billet coated with silver to act as a lubricant, is loaded in the container against a graphite ring 43 resting on the die 4 which is supported from below by a cage 5 and wedge assembly 7 operated by an hydraulic ram 6. The latter is hinged at 33 so as to be detachable from a slot 38 in the wedge assembly. Container 1 is heated by electrothermal braid 44 insulated with glass tape. The die 4, mandrel 8, wedges 27, 28 and their guide plate 31 are coated with graphite by dipping in a suspension of colloidal graphite in water arid they are also polished before use. Mandrel 8 has an integral head 9 which is pressed downwards by an hydraulic ram 46 to extrude the tube and force it between the grooved rolls which are carried by the cage 5. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4064729-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-3122158-A1 |
| priorityDate | 1961-11-21^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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