Arrangement for sealing without contact a gap in the runout of a

Details Arrangement for sealing without contact a gap in the runout of a Arrangement for sealing without contact a gap in the runout of a

1995-01-06

1997-05-13

Larson, Lowell A.

Metal deforming

By use of roller or roller-like tool-element

With cleaning or conditioning of tool, or lubrication of...

72 39, B21B 2800

Patent

active

056282230

ABSTRACT:
An arrangement for sealing without contact a gap between a separating wall and a work roll in the runout of a roll stand includes at an end of the separating wall a separating element which is arranged so as to extend approximately tangentially relative to the surface of the work roll and at a relatively small distance from the surface of the work roll and from the surface of the rolled material. The separating element has at least one supply duct for compressed air connected to a compressed air source, wherein the supply duct has at an end thereof a slot-shaped nozzle which is located at a small distance from the roll surface and extends along the roll surface in the direction of the roll axis. The blowing-out direction of the slot-shaped nozzle and a line extending from the nozzle opening perpendicularly relative to the axis of the work roll include an angle of between 0.degree. and 45.degree.. The separating element has at the front side thereof an end portion which extends approximately tangentially relative to and at a small distance from the roll surface and a flow channel is formed between the end portion and the roll surface, wherein the width of the flow channel increases steadily away from the tip in the manner of an injector, and wherein the flow channel extends at least over the width of the rolled material parallel to the axis of the work roll.

REFERENCES:
patent: 5081857 (1992-01-01), Matsui et al.

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