DIE FOR MOULDING VANE Russian patent published in 1997 - IPC

Abstract RU 2080234 C1

FIELD: mechanical engineering. SUBSTANCE: die has top and bottom portions with impressions the plane of detaching of which are screw surfaces of rotation bounded by outer and inner screw cylindrical lines of different slopes and space between the surfaces. The space is diverging in the direction of the inner screw line. The divergence is defined by a relationship presented in the invention description. The space may be diverging in the top portion, in the bottom portion or in both of the portions. EFFECT: . cl, dwg

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RU 2 080 234 C1

Authors

Onishchenko A.K.

Popolitov M.P.

Timokhin V.S.

Shilkov V.B.

Dates

1997-05-27—Published

1995-05-03—Filed