METHOD FOR PRODUCING ARTICLES FROM ZIRCONIUM ALLOYS

METHOD FOR PRODUCING ARTICLES FROM ZIRCONIUM ALLOYS

FIELD: production of pipes and rods from zirconium alloys used as structural materials in active zones of nuclear reactors and apparatuses of chemical and oil-and-gas industry. SUBSTANCE: initial billet is produced from ingot by hot forming at temperature of existence of beta or (alpha + beta) zirco...

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Hauptverfasser: SHEVNIN JU.P, KOTREKHOV V.A, AKTUGANOVA E.N, ZAVODCHIKOV S.JU, LOSITSKIJ A.F
Format: Patent
Sprache:eng ; rus
Schlagworte:
CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS ANDNON-FERROUS ALLOYS
CHEMISTRY
FERROUS OR NON-FERROUS ALLOYS
METALLURGY
TREATMENT OF ALLOYS OR NON-FERROUS METALS
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creator SHEVNIN JU.P
KOTREKHOV V.A
AKTUGANOVA E.N
ZAVODCHIKOV S.JU
LOSITSKIJ A.F
description FIELD: production of pipes and rods from zirconium alloys used as structural materials in active zones of nuclear reactors and apparatuses of chemical and oil-and-gas industry. SUBSTANCE: initial billet is produced from ingot by hot forming at temperature of existence of beta or (alpha + beta) zirconium. Intermediate billet is produced by hot forming in (alpha + beta) temperature region. Dimension billet is produced from intermediate billet and hardened at temperature exceeding by 30-60 C the point of alloy transition from intermediate (alpha + beta) region to bet zirconium region. Hardened dimension billet is subjected to tempering at temperature of existence of alpha zirconium, then billet is hot-formed at temperature of existence of alpha or (alpha + beta) zirconium and subjected to multistage machining. EFFECT: elimination of hereditary discontinuity in ingots from zirconium alloy in machining; higher quality of manufactured articles. 4 dwg, 1 tblm
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subjects CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS ANDNON-FERROUS ALLOYS
CHEMISTRY
FERROUS OR NON-FERROUS ALLOYS
METALLURGY
TREATMENT OF ALLOYS OR NON-FERROUS METALS
title METHOD FOR PRODUCING ARTICLES FROM ZIRCONIUM ALLOYS
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