METHOD OF PRODUCING TUBULAR PRODUCTS FROM A ZIRCONIUM-BASED ALLOY

The invention relates to the field of nuclear engineering and to the production of tubular products from a zirconium alloy, which can be used as structural elements in the core of a water-cooled nuclear reactor. The present method of producing tubular products from a zirconium-based alloy includes m...

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Hauptverfasser:	SOLOVEV VADIM NIKOLAEVICH, FILATOVA NADEZHDA KONSTANTINOVNA, MARKELOV VLADIMIR ANDREEVICH, OZHMEGOV KIRILL VLADIMIROVICH, CHINEIKIN SERGEI VLADIMIROVICH, NIKULINA ANTONINA VASILEVNA, SABLIN MIHAIL NIKOLAEVICH, LOZITCKII SERGEI VASILEVICH, ZIGANSHIN ALEKSANDR GUSMANOVICH, NOVIKOV VLADIMIR VLADIMIROVICH, KABANOV ALEKSANDR ANATOLEVICH
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ALLOYS CHEMISTRY FERROUS OR NON-FERROUS ALLOYS GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS PERFORMING OPERATIONS PUNCHING METAL ROLLING OF METAL TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	The invention relates to the field of nuclear engineering and to the production of tubular products from a zirconium alloy, which can be used as structural elements in the core of a water-cooled nuclear reactor. The present method of producing tubular products from a zirconium-based alloy includes melting an ingot by vacuum arc remelting, mechanically treating the ingot, heating same, carrying out multi-stage hot forging of the ingot to produce a forged workpiece, subsequently mechanically treating the forged workpiece to produce a blank having a circular profile, producing tubular blanks, quenching and tempering same, applying a protective coating to the tubular blanks and heating same to a hot pressing temperature, hot pressing, removing the protective coating, carrying out vacuum heat treatment, and carrying out multi-pass cold rolling to produce tubular products, wherein vacuum heat treatment is carried out after each cold rolling pass, and a final vacuum heat treatment is carried out at the finished size