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2 645 839

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(51)

IPC

B21D41/02(2006-01-01)

B21D51/24(2006-01-01)

(21) (22)

Application

2016118136, 2016-05-10

(24)

Start date

2016-05-10

(22)

Actual filing date

2016-05-10

(45)

Published

2018-02-28

(72)

Inventor

Gagarinov Vyacheslav AlekseevichTikhontseva Nadezhda TakhirovnaZaselskij Evgenij MikhajlovichOvchinnikov Dmitrij VladimirovichUstyantsev Vladimir LeonidovichBychkov Dmitrij VladimirovichGoldina Lyudmila IlinichnaNovozhilov Igor NikolaevichGoncharov Valentin Sergeevich

(73)

Holder

Publichnoe Aktsionernoe Obshchestvo Trubnyj Zavod"

PUNCH FOR DISPENSING END OF PIPE OF OIL SORTAMENT Russian patent published in 2018 - IPC B21D41/02 B21D51/24

Abstract RU 2645839 C2

FIELD: metallurgy.

SUBSTANCE: punch is made of tool alloyed steel and contains input, conical, transitional and cylindrical sections. The conical section is made with the angle of the cone depending on the friction coefficient of the pipe metal on the contact surface with the punch.

EFFECT: increased punch resistance.

2 cl, 1 dwg, 1 tbl

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RU 2 645 839 C2

Authors

Gagarinov Vyacheslav Alekseevich

Tikhontseva Nadezhda Takhirovna

Zaselskij Evgenij Mikhajlovich

Ovchinnikov Dmitrij Vladimirovich

Ustyantsev Vladimir Leonidovich

Bychkov Dmitrij Vladimirovich

Goldina Lyudmila Ilinichna

Novozhilov Igor Nikolaevich

Goncharov Valentin Sergeevich

Dates

2018-02-28—Published

2016-05-10—Filed