http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CA-2038273-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c72d118f5664072de841f9c5c34b9d99 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02T50-60 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C23C4-185 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B22D25-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B22D23-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C23C4-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B22F3-115 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C23C4-18 |
| filingDate | 1991-03-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f9ab19b409cd8374e2d1e24b56de5abd http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5b5edf8b9478f2478ba2a5fb73e2b3e7 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1b0c1644cb02e6218de2a468f08054d9 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cda2b7ccbceb0e913de28d75e01a0cf7 |
| publicationDate | 1991-12-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CA-2038273-A1 |
| titleOfInvention | Tube fabrication with reusable mandrel |
| abstract | RD-20,403 TUBE FABRICATION WITH REUSABLE MANDREL ABSTRACT OF THE DISCLOSURE A method for forming a multiplicity of ring struc-tures having essentially the same internal diameter is taught. A first step in the process is the provision of a mandrel of relatively high thermal coefficient of expansion and the deposit of a layer of unreactive oxide on the surface of the mandrel. Following the oxide coating of the mandrel surface, a layer of a matrix metal is deposited thereon to form a ring structure on the nandrel The coefficient of thermal expansion of the mandrel metal and that of the matrix metal are sufficiently distinct that there is a spontaneous separation of the deposited matrix metal ring structure as the mandrel and deposited layer cool to room temperature. Following the cooling, the matrix metal ring structure can be removed from the mandrel and the mandrel is then rendered suitable for repetition of the process to deposit yet another matrix ring structure thereon. |
| priorityDate | 1990-06-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 25.