BILLET FOR TUBE COLD ROLLING Russian patent published in 1999 - IPC

Abstract RU 2135313 C1

FIELD: tube rolling. SUBSTANCE: billet consists of tube lengths joined with one another by means of conical threaded shanks of regulated sizes. Joint may be made either directly or with the help of intermediate threaded bushings. EFFECT: reliable joint of short lengths of tube into long billet ensuring transmission of axial stretching and compression from axial force of rolling, turning of billet and elimination of effect of different thickness of walls of tube joined lengths. 4 cl, 3 dwg

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RU 2 135 313 C1

Authors

Smirnov V.G.

Rybakov E.V.

Gavrilov A.K.

Smirnov G.V.

Dates

1999-08-27—Published

1998-09-14—Filed