WIRE SIZING-ROLLING METHOD - KAWASAKI STEEL CO

Title:

WIRE SIZING-ROLLING METHOD

Document Type and Number:

WIPO Patent Application WO/2001/014074

Kind Code:

A1

Abstract:

A method of sizing-rolling performed by installing three units or more of 4-roll rolling mills in series with each other, comprising the steps of setting, in a first pass, a center angle $g(u)1 of the complete round forming part of a rolling roll at less than 15°, setting, in the third pass, the center angle $g(u)3 at 45° or more and, in the second pass (B), the center angle $g(u)2 at 30° or more, forming the groove of each rolling roll so that a relief part is made tangential to an arc formed with the complete round forming part, installing, in the second pass, a roller guide with four guide rollers on the inlet side so as to hold and guide the free surface of a rolled material by the guide roller, and making equal, in the first pass, the angle $g(a) of the V-groove in the guide roller to the angle (90° + $g(u)1) formed by the straight lines forming the relief part of the rolling rolls adjacent to each other, whereby an excellent surface properties can be obtained while a wide size free area is assured even when a wire of 7.0 mm or less in diameter is used.

More Like This:

WO/2000/064604

TAPERED BODY FORMING METHOD AND ROLLING DEVICE

Inventors:

TAKEDA RYO (JP)
OGAWA TAKAO (JP)
SAKURAI TOMOYASU (JP)

Application Number:

PCT/JP2000/005203

Publication Date:

March 01, 2001

Filing Date:

August 03, 2000

Export Citation:

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Assignee:

KAWASAKI STEEL CO (JP)
TAKEDA RYO (JP)
OGAWA TAKAO (JP)
SAKURAI TOMOYASU (JP)

International Classes:

B21B1/18; B21B13/10; B21B27/02; B21B39/14; B21B39/16; (IPC1-7): B21B1/16

Foreign References:

JPH06182404A	1994-07-05
JPS6343702A	1988-02-24
JPH1099902A	1998-04-21

Other References: