Reinforcement fibres

Details Reinforcement fibres Reinforcement fibres

1978-03-16

1980-07-01

Larson, Lowell A.

Metal deforming

By use of 'flying tool' engaging moving work

With cutting

72185, 72197, 83906, B21D 28/06

Patent

active

042100097

ABSTRACT:
Fine fibres of steel for use as concrete reinforcement are produced by longitudinally slitting continuous steel strip to form narrow strip segments and severing the strip segments at intervals along their length. The strip is slit longitudinally on passing between a pair of nip rollers having intermeshing circumferential tongues and grooves so that penetration of the tongues into the grooves severs the strip longitudinally. The resulting strip segments are passed between chopping rollers which chop them into discontinuous fibres and also deform the thus formed fibre ends to promote anchorage in the concrete.

REFERENCES:
patent: 62553 (1867-03-01), Martin
patent: 2739647 (1956-03-01), Coste
patent: 3504516 (1970-04-01), Sundberg
patent: 3516315 (1970-06-01), Suzuki
patent: 3650168 (1972-03-01), Ruschmann
patent: 3939745 (1976-02-01), Weeks et al.
patent: 4019357 (1977-04-01), Gokyu

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