DEVICE FOR DEFORMATION OF THIN-WALLED PIPES Russian patent published in 1994 - IPC

Abstract SU 1429407 A1

FIELD: rolling of pipes. SUBSTANCE: device has die 1 provided with conical working part whose cone angle is equal to 5- 15', mandrel 2 whose ends are provided with rods 3,4 held by clamps 5,6 and hydraulic cylinders 7,8 with tension. Ends of pipes 17 are caught with tension by clamps 9,10 having hydraulic drives for axial movements. Mandrel 2 can be multistep. EFFECT: enhanced accuracy and efficiency. 1 tbl

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SU 1 429 407 A1

Authors

Blinov Ju.I.

Shurinov V.A.

Bondarenko V.P.

Dates

1994-11-30—Published

1986-06-30—Filed