Voest-alpine Aktiengesellschaft

Franz Hirschmanner

Rudolf Buchegger

Ernst Rom

Franz Brettbacher

Karl Moshammer

Peter Heyer

In a coiler-furnace unit comprising a coiler for coiling a metal strip, a sleeve (2), which comprises heating means (3) for heating the coiler mandrel (1) and is adapted to be axially displaced over the coiler mandrel (1), and a heat-insulating shell (7) associated with said sleeve, a uniform heating of the coiled strip and a low dissipation of heat are ensured in that the heat-insulating shell (7) is mounted to be axially displaceable toward the coiler mandrel (1) relative to the sleeve (2) and is provided with a passage slot (18) for receiving the metal strip.

Coiler-furnace unit

For a heating of a coil of strip with hot gas without an increased formation of scale, a coiler-furnace unit comprising a heat-insulating housing, a coiler mandrel disposed in said housing, and a heating tube which is adapted to surround the coiler mandrel and to heat the latter, is characterized in that the heating tube consists of a radiant inner tube, which is enclosed by a shell, at least one hot gas passage is defined between the inner tube and the shell, the heat-insulating housing is double-walled to define at least one flow passage, and the outlet opening of the hot gas passage of the heating tube communicates with an inlet opening of the flow passage of the heat-insulating housing in at least one axial position of the heating tube.

A coiler-furnace unit comprises a coiler having a heatable coiler mandrel, which is disposed in a heat insulating housing, and strip guiding means comprising pressure applying rollers for engaging a strip to be coiled at least two cylindrical guide shoes, which extend around and are engageable with the coiler mandrel. In order to avoid heat losses, at least one heat insulating shielding element is provided, which is adapted to be introduced into the annular clearance defined on one side by the guide shoes when they have been retracted from the coiler mandrel and by the pressure-applying rollers and on the other side by the coiler mandrel or the strip coiled on said mandrel.

A coiler comprises a rotatably mounted coiler shaft, adapted to be driven, and a hollow reel, non-rotatably connected to the coiler shaft and containing a mechanism for expanding the coil. The expanding mechanism is adapted to be actuated by an actuator and comprises radially adjustable pressure-applying members, adapted to protrude through apertures in the reel at its periphery. To ensure that the coiler will be operable even under high loads, the pressure-applying members are spaced along the reel and mounted on two diamatically expanding opposite members, operatively connected to the actuating mechanism. The expanding members are pivoted on diametrically opposite axes which extend parallel to the axis of the coiler shaft.

Coiler for strip metal

A plant for hot-rolling strip or plate stock comprises roller conveyors for conveying the stock to be rolled, which is guided on the roller conveyors by side guards, which are provided on the roller conveyors near their side edges and adjustable transversely to the direction of travel on the roller conveyors. To ensure that on such roller conveyor provided with the side guards the cooling of the stock to be rolled will be minimized, the roller conveyors are provided with coverings, which are supported by the side guards and movable in unison with at least one of the side guards.

Heat shield for a rolling mill

In a coiler-furnace unit comprising a coiler having a coiler mandrel arranged for carrying a strip wound on the mandrel, the improvement comprises a heating device arranged for selective movement between a first position wherein the heating device surrounds and heats the coiler mandrel, and a second position wherein the heating device is removed from the coiler mandrel. The heated coiler mandrel heats the strip wound thereon in the second position of the heating device.

A coiler-furnace comprises a heat-shielding hood and a coiler having a coiler mandrel for coiling a hot-rolled strip. The mandrel incorporates an electrically energizable heating winding comprising a plurality of inductor coils for heating the coiler strip.

Coiler-furnace combination

A coiler-furnace combination comprises a horizontal coiler, a strip guide which comprises two pressure rollers for forcing the strip against the coil and two part-cylindrical guide segments, one of which precedes the other in the winding sense and adjoins a strip transfer bridge for transferring the strip to and from the coiler, and a strip lifter. To simplify the structure, the two guide segments are secured to arms which pivoted on pivots disposed outside the heat-shielding hood and parallel to the mandrel. The strip lifter is constituted by the delivery edge of that guide segment which succeeds the other in the coiling sense. The strip transfer bridge consists of a roller conveyor and at its end facing the mandrel has a pressure roller for forcing the strip against the coil.

Growing community of inventors

Leonding, Austria

Franz Hirschmanner