DEVICE FOR CORRECTING SHAPE OF STEEL MATERIAL PROVIDED WITH GUIDING UNIT AND METHOD THEREFOR

WIPO Patent Application WO/1993/009894

A1

A device for correcting the shape of steel material composed of a rolling unit comprising a plurality of sets of three-way roll units arranged in series along the direction in which the steel material is conveyed, a three-way roll type sizing unit (1) for shape correction in precision rolling, and a guiding unit (5) made of carbon family material and having a guide hole (50) for guiding the sized steel material (W) to the subsequent process. An inner diameter of the guide hole (50) is set 0.1 to 8 mm larger than the outer diameter of the steel material (W) circular in cross section and a clearance between the inner wall (55) of the guide hole (50) and steel material (W) is exceedingly narrowed. Because of a large axial length of the guide hole (50), a curved portion of the tip of steel material (W) is corrected by the inner wall (55) of the guide hole (50) when entering said hole (50). An S-shaped curve otherwise caused when the steel material (W) is lightly rolled by the three-way roll unit can be partially or completely corrected.

JP2000158004	METHOD FOR JOINING ROLLED STOCK IN MULTISTRAND CONTINUOUS ROLLING AND DEVICE THEREFOR
JPS5813402	PRODUCTION OF FLAT WIRE

YOKOO YOSHIKI (JP)
TERAOKA TADANORI (JP)

PCT/JP1991/001806

May 27, 1993

December 26, 1991

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AICHI STEEL WORKS LTD (JP)

B21B1/16; B21B1/18; B21B13/10; B21B15/00; B21B39/14; B21B39/16; B21F1/02; (IPC1-7): B21D3/02; B21F1/02

JPS60186911U	1985-12-11
JPS6092020A	1985-05-23
JPS5939435A	1984-03-03
JPS5517660U	1980-02-04
JPS57124520A	1982-08-03
JPS51146362A	1976-12-15
JPH0718128Y2	1995-04-26

See also references of EP 0567647A4

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