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Joint Stock Company Chepetsky Mechanical Plant

Sergei Jurievich Zavodchikov

Vladimir Andreevich Kotrekhov

Oleg Viktorovich Bocharov

Anatoly Frantsevich Lositsky

Jury Pavlovich Shevnin

Antonina Vasilievna Nikulina

Elena Nikolaevna Aktuganova

Viktor Fedorovich Bukhovtsev

Vladimir Fedorovich Seliverstov

Antonina Vasiljevna Nikulina

The present invention relates to a method for producing tubing products from binary and multicomponent zircon alloys, consisting in obtaining from an ingot previously submitted to a beta distortion process p source preparation, hot forming said source preparation at the subsistence temperature of zirconium alpha&plus;beta to get a tubular blank hardenning the latter at a temperature higher by 30 to 60&deg; to the temperature at which the alloy passes from an intermediary state zirconium alpha&plus;beta to the beta state of zirconium, mechanically processing, following by a tempering process at the subsistence temperature of alpha zirconium until the finished product is obtained, the cold distortion of the tubular product being effected with the following global stretching: &mgr; >100 for the finished products and &mgr; <50 for the TREX or SUPER TREX-type semi-finished tubular products, whereby at the first stage of the cold distortion the stretching &mgr;<2.0, &mgr;&equals;S /S (where S is the cross-sectional surface of the product before the milling process and S is the cross-sectional surface of the laminated tube) and &mgr;&equals;S /S (where S is the cross-sectional surface of the blank before the first milling process and S is the cross-sectional surface of the finished tube after the last milling process).

Method of manufacturing zirconium alloy tubes

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Glazov, Russia

Sergei Jurievich Zavodchikov