Method of production of steel cord for reinforcing products havi

Details Method of production of steel cord for reinforcing products havi Method of production of steel cord for reinforcing products havi

1996-10-15

1997-07-29

Stryjewski, William

Textiles: spinning, twisting, and twining

Apparatus and processes

With wire or strand preforming or shaping

57 9, 57200, 57237, 57902, D01H 1326, D02G 336

Patent

active

056512465

ABSTRACT:
A method for producing a steel cord from 3 to 6 steel filaments on which a coating is applied to retain the adhesion to a rubber, the steel cord being destined for use to reinforce a rubber product having a flat section, comprising the following steps of preforming steel filaments at a ratio of more than 120% by twisting them together to form an open-structure steel cord; and passing the steel cord through a flattening apparatus provided at each of outlet and inlet thereof with a roller having a groove formed in the center of the circumference thereof, and between the inlet and outlet rollers with at least a roller of which the circumferential surface is flat, to repeatedly bend the steel cord vertically or horizontally.

REFERENCES:
patent: 627258 (1899-02-01), Hallidie
patent: 4385486 (1983-05-01), Iwata et al.
patent: 4718470 (1988-01-01), Kusakabe et al.
patent: 4938015 (1990-07-01), Kinoshita
patent: 5162067 (1992-11-01), Miyawaki
patent: 5223060 (1993-06-01), Imamiya et al.

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