Stretch-reducing mill for rolling tubes

Details Stretch-reducing mill for rolling tubes Stretch-reducing mill for rolling tubes

1990-10-24

1992-07-14

Spruill, Robert L.

Metal deforming

By use of roller or roller-like tool-element

Plural roller-couples

72249, B21B 1700, B21B 3510

Patent

active

051292505

ABSTRACT:
A stretch-reducing mill comprises a plurality of rolling stands laid side-by-side between an input stand and an output stand. A first group of stands adjacent to one another is next to the input stand and a second group of stands adjacent to one another is next to the output stand. The first group of stands is operated through a differential drive with two motors; the second group of stands is driven by independent single motors.

REFERENCES:
patent: 3357225 (1967-12-01), Grube
patent: 4000637 (1977-01-01), Gerhards et al.
patent: 4306440 (1981-12-01), Demny
patent: 4388819 (1983-06-01), Moltner

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