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2 227 768

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IPC

(21) (22)

Application

2002112503/02, 2002-05-13

(24)

Start date

2002-05-13

(22)

Actual filing date

2002-05-13

(45)

Published

2004-04-27

(72)

Inventor

Gomljakov V.I.Trofimov P.F.

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo Altajskij Nauchno-Issledovatel'Skij Institut Tekhnologii Mashinostroenija

MILL FOR LENGTHWISE ROLLING OFF AXIALLY SYMMETRICAL SHAPES Russian patent published in 2004 - IPC

Abstract RU 2227768 C2

FIELD: plastic working of metals in cold state, possibly in machine engineering for rolling off parts with axially symmetrical cross section. SUBSTANCE: mill includes housing; mandrels mounted in housing; drive unit with rolling out head; clamping centers; hydraulic cylinder for clamping blank. Said hydraulic cylinder is hydraulically connected with control hydraulic cylinder having rod to which movable contact member of limit switch is secured. Volume of piston cavity of control hydraulic cylinder is equal to volume of rod cavity of hydraulic cylinder for clamping blank. EFFECT: enhanced efficiency, simplified electric circuit, enlarged manufacturing possibilities. 2 dwg

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RU 2 227 768 C2

Authors

Gomljakov V.I.

Trofimov P.F.

Dates

2004-04-27—Published

2002-05-13—Filed