PRODUCTION OF 299×10-60 mm SEAMLESS HOT-ROLLED PIPES FOR STEAM BOILERS, STEAM PIPELINES AND MANIFOLDS OF PLANTS WITH HIGH AND SUPERHIGH STEAM PARAMETERS OF "10Х9МФБ-Ш"-GRADE STEEL Russian patent published in 2014 - IPC B21B19/06 

Abstract RU 2522512 C1

FIELD: metallurgy.

SUBSTANCE: invention relates to metallurgy, particularly, to pipe rolling. Hollow ESR ingots are bores and turned to hollow billets sized to 500xvn.320x3200±50 mm. Said hollow billets are heated to 1180-1200°C and rolled at PRU 8-16" with Pilger rerolled hot-rolled pipes sized to 325x15x20300-20700 and 325x18x17600-18300 mm. Process wastes are cut off by hot-cutting saw, hot-rolled rerolled pipes are cut to lengths. The latter are straightened at six-roll straightener and subjected to heat treatment. They are accepted and rolled at CRM 450 to cold-rolled pipes sized to 299x10-15 mm.

EFFECT: higher mechanical properties and precision of pipe sizes.

3 cl, 1 tbl

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RU 2 522 512 C1

Authors

Saf'Janov Anatolij Vasil'Evich

Fedorov Aleksandr Anatol'Evich

Tazetdinov Valentin Irekleevich

Voronin Anatolij Andreevich

Osadchij Vladimir Jakovlevich

Golovinov Valerij Aleksandrovich

Klimov Nikolaj Petrovich

Matjushin Aleksandr Jur'Evich

Saf'Janov Aleksandr Anatol'Evich

Barichko Vladimir Sergeevich

Bubnov Konstantin Ehduardovich

Eremin Viktor Nikolaevich

Dates

2014-07-20Published

2012-11-21Filed