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2 340 418

(13)

(51)

IPC

B21C23/08(2006-01-01)

B21C25/00(2006-01-01)

(21) (22)

Application

2007108934/02, 2007-03-13

(24)

Start date

2007-03-13

(22)

Actual filing date

2007-03-13

(45)

Published

2008-12-10

(72)

Inventor

Shukhat Oleg MikhajlovichMalafeev Valerij AndreevichSergeev Aleksej Grigor'EvichLokotosh Larisa Vasil'Evna

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo Aktsionernaja Kholdingovaja Kompanija Nauchno-Issledovatel'Skij I Proektno-Konstruktorskij Institut Metallurgicheskogo Mashinostroenija Imeni Akademika Tselikova" Akhk

TOOL FOR PRESSING OF PIPES WITH WELDING Russian patent published in 2008 - IPC B21C23/08 B21C25/00

Abstract RU 2340418 C1

FIELD: technological processes, tool.

SUBSTANCE: tool contains container with heater, hollow press-stamp with pressure pad, movable holder and chamber matrix. Matrix splitter has central cylindrical opening for holder passage and alignment. Annular gap for pipe extrusion is formed with central cylindrical opening of splitter and working channel of matrix ring. Longitudinal grooves are arranged on the surface of splitter opening, and channels - feeders of welding chamber are formed with these grooves and holder.

EFFECT: quality of pipes is increased with reduction of pressing pressure.

1 dwg

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RU 2 340 418 C1

Authors

Shukhat Oleg Mikhajlovich

Malafeev Valerij Andreevich

Sergeev Aleksej Grigor'Evich

Lokotosh Larisa Vasil'Evna

Dates

2008-12-10—Published

2007-03-13—Filed