发明名称 |
METHOD OF PRODUCTION OF THIN-WALLED TUBULAR BILLET FROM Nb OR Ta INGOT FOR FORMING DIFFUSION BARRIER IN SUPERCONDUCTORS (VERSIONS) |
摘要 |
FIELD: metallurgy; production of superconducting wires operating at temperature of liquid helium in magnetic systems of charged-particle accelerators. ^ SUBSTANCE: proposed method includes homogenizing annealing of ingot within temperature interval of from 1200 to 1350°C and application of protective copper coat on ingot. Then, ingot is heated to temperature of 800-900°C and is subjected to extrusion deformation for obtaining first billet which is subjected to machining followed by application of protective copper coat. First billet is heated at temperature of 800-900°C and is subjected to extrusion deformation for obtaining second billet which is also subjected to machining. Then, the following operations are performed: re-crystallization annealing at temperature of from 950 to 1250°C, cold rolling to preset size of billet and re-crystallization annealing at temperature of from 950 to 1250°C. Billets thus produced possess property for further deformation at total drawing of up to 9.108 for production of superconductors. ^ EFFECT: enhanced efficiency; avoidance of undesirable diffusion processes. ^ 7 cl, 3 ex |
申请公布号 |
RU2285739(C2) |
申请公布日期 |
2006.10.20 |
申请号 |
RU20040132050 |
申请日期 |
2004.11.02 |
申请人 |
FEDERAL'NOE GOSUDARSTVENNOE UNITARNOE PREDPRIJATIE "VSEROSSIJSKIJ NAUCHNO-ISSLEDOVATEL'SKIJ INSTITUT NEORGANICHESKIKH MATERIALOV IMENI AKADEMIKA A.A.BOCHVARA";ROSSIJSKAJA FEDERATSIJA, OT IMENI KOTOROJ VYSTUPAET GOSUDARSTVENNYJ ZAKAZCHIK FEDERAL'NOE AGENTSTVOPO ATOMNOJ EHNERGII |
发明人 |
POTAPENKO MIKHAIL MIKHAJLOVICH;POTANINA LJUDMILA VLADIMIROVNA;VEDERNIKOV GENNADIJ PETROVICH;PLASHKIN EHDUARD IVANOVICH;SHIKOV ALEKSANDR KONSTANTINOVICH;VOROB'EVA ALEKSANDRA EVGEN'EVNA;SOKOLOVSKIJ DMITRIJ VIKTOROVICH |
分类号 |
C22F1/18;B21B3/00 |
主分类号 |
C22F1/18 |
代理机构 |
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代理人 |
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地址 |
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