The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 09, 2002
Filed:
Sep. 08, 1999
Sergei Jurievich Zavodchikov, Glazov, RU;
Elena Nikolaevna Aktuganova, Glazov, RU;
Oleg Viktorovich Bocharov, Moscow, RU;
Viktor Fedorovich Bukhovtsev, Moscow, RU;
Vladimir Andreevich Kotrekhov, Glazov, RU;
Anatoly Frantsevich Lositsky, Glazov, RU;
Jury Pavlovich Shevnin, Glazov, RU;
Antonina Vasilievna Nikulina, Moscow, RU;
Vladimir Fedorovich Seliverstov, Glazov, RU;
Other;
Abstract
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+beta to get a tubular blank hardenning the latter at a temperature higher by 30 to 60° to the temperature at which the alloy passes from an intermediary state zirconium alpha+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;=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;=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).