Process and unit for rolling metal to produce a round bar or wir

Details Process and unit for rolling metal to produce a round bar or wir Process and unit for rolling metal to produce a round bar or wir

1992-11-23

1995-02-28

Larson, Lowell A.

Metal deforming

With use of control means energized in response to activator...

Metal deforming by use of roller or roller-like tool element

72235, 723662, B21B 1312, B21B 118

Patent

active

053926242

ABSTRACT:
A process and unit for hot- and cold-rolling ferrous and non-ferrous metals in order to produce a round bar or wire rod from a round bar or wire rod having a larger diameter. The process consists in inserting a bar or wire rod, whose initial profile has a round cross-section, in a rolling unit which is provided with rolling rolls whose profiles define a round passage whose diameter is smaller than the diameter of the input bar or wire rod. Upstream from the rolling unit, the larger-diameter bar or wire rod is subjected to the action of free rollers whose profiles are suitable to deform the larger-diameter bar or wire rod according to a shape which produces, in output from the rolling unit, a bar or wire rod whose cross-section is round and has a smaller diameter.

REFERENCES:
patent: 1193001 (1916-08-01), Edwards
patent: 2357058 (1944-08-01), Ramsay
patent: 4182147 (1980-01-01), Brauer et al.
patent: 4283930 (1981-08-01), Hasegawa et al.
patent: 5000023 (1991-03-01), Feldmann et al.
patent: 5125251 (1992-06-01), Pettersson et al.
Patent Abstracts of Japan, vol. 10, No. 353 (M-539) 28 Nov., 1986 (Keiichiro Yoshida).
Patent Abstracts of Japan, vol. 10, No. 365 (M-542) 6 Dec., 1986 (Asahi Chem Ind).
Draht vol. 33, No. 5, May 1982, Bamberg DE, pp. 237-242 P. Funke.

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