METHOD OF PRODUCTION OF SEAMLESS MACHINED PIPES WITH SIZE OF 610×21-27 mm FROM STEEL OF 08Cr18N10T-S GRADE Russian patent published in 2017 - IPC B21B19/06 B21B21/00 

Abstract RU 2638265 C1

FIELD: metallurgy.

SUBSTANCE: method for producing seamless machined pipes of 610×21-27 mm size from steel of 08Cr18N10T-S grade includes casting of hollow ingots by electroslag remelting with size of 740×inner560×3250±50 mm, boring and turning in ingots-blanks with size of 720×inner580×3250±50 mm heating of ingots-blanks in continuous furnaces to temperature of 1260-1270°C, supplying thereof to the ingot trolley, purging with compressed air or inert gas, casting of ingots-blanks inside from two ends with mixture of graphite with table salt in ratio of 50/50 and 2000-2500 g, rolling thereof in pilger mill to conversion hot-rolled tubes of 630×42×4300-4500 mm with diameter reduction Δ=12.5%, cutting of process wastes by hot cutting saw, straightening on six-roll straightening machine in 2-3 passes to curvature of not more than5.0 mm per length of conversion tube, austenitization, boring and turning of conversion tubes with 630×42×4300-4500 mm into commercial sizes 610×21-27×4300-4500 mm.

EFFECT: reduction of metal consumption coefficient.

3 cl, 1 tbl

Similar patents RU2638265C1

Title Year Author Number
METHOD OF PRODUCTION OF SEAMLESS MACHINED PIPES WITH SIZE OF 610×28-32 mm FROM STEEL OF 08Cr18N10T-S GRADE 2017
  • Safyanov Anatolij Vasilevich
RU2638263C1
METHOD OF PRODUCTION OF SEAMLESS MACHINED PIPES WITH SIZE OF 610×15-20 mm FROM STEEL TO 08Cr18N10T-S GRADE 2017
  • Safyanov Anatolij Vasilevich
RU2638264C1
METHOD OF PRODUCING SEAMLESS MACHINED PIPES WITH 610X10-14 MM SIZE FROM STEEL OF "08Х18Н10Т-Ш" GRADE 2016
  • Safyanov Anatolij Vasilevich
RU2617080C1
METHOD FOR PRODUCING SEAMLESS COLD-DEFORMED PIPES OF 426x8-25 mm SIZE MADE OF STEEL OF "08Х18Н10Т-Ш" GRADE 2016
  • Safyanov Anatolij Vasilevich
RU2615923C1
METHOD FOR PRODUCING SEAMLESS PIPES OF 377x8-18 mm SIZE MADE OF STEEL OF "08Х18Н10Т-Ш" GRADE 2016
  • Safyanov Anatolij Vasilevich
RU2615922C1
METHOD OF MANUFACTURING SEAMLESS PIPES OF SIZE 426x23-25 mm FOR NUCLEAR POWER FACILITIES OF STEEL OF "08Х18Н10-Ш" GRADE 2016
  • Safyanov Anatolij Vasilevich
RU2615926C1
METHOD OF PRODUCING SEAMLESS MACHINED PIPES WITH 530×13-17 MM SIZE FROM STEEL OF "08Х18Н10-Ш" GRADE 2016
  • Safyanov Anatolij Vasilevich
RU2615400C1
METHOD FOR PRODUCING SEAMLESS PIPES OF 426×8-13 mm SIZE MADE OF STEEL MARK "08Х18Н10Т-Ш" 2016
  • Safyanov Anatolij Vasilevich
RU2618686C1
PRODUCTION OF SEAMLESS HOT-STRAINED MACHINED HIGHER-STRENGTH 630×16 mm PIPES OF 08X18H10T-GRADE STEEL FOR NUCLEAR POWER PRODUCTION STRUCTURES 2013
  • Saf'Janov Anatolij Vasil'Evich
  • Fedorov Aleksandr Anatol'Evich
  • Tazetdinov Valentin Irekleevich
  • Osadchij Vladimir Jakovlevich
  • Nikitin Kirill Nikolaevich
  • Klimov Nikolaj Petrovich
  • Danovskij Nikolaj Grigor'Evich
  • Litvak Boris Semenovich
  • Shmakov Evgenij Jur'Evich
  • Matjushin Aleksandr Jur'Evich
  • Bubnov Konstantin Ehduardovich
  • Burakov Aleksandr Pavlovich
RU2557390C1
METHOD FOR PRODUCING SEAMLESS COLD DRAWN PIPES OF 325x8-14 mm SIZE MADE OF STEEL OF "08Х18Н10Т-Ш" GRADE 2016
  • Safyanov Anatolij Vasilevich
RU2615920C1

RU 2 638 265 C1

Authors

Safyanov Anatolij Vasilevich

Dates

2017-12-12Published

2017-03-20Filed