Sms Schloemann-Siemag Aktiengesellschaft

Joachim Pfeiffer

Dieter Rosenthal

Peter Sudau

Martin Braun

Horst Grafe

Berthold Hild

Max Munker

Helga Treutmann

A descaling device for slabs or strips in hot rolling mills includes nozzles fed by a pressurized water piston pump for directing water jets against the slab or strip for removing scale adhering to the surface of the slab or strip. At least one additional pressurized water piston pump is provided, wherein the piston pumps are connected in parallel and the pumps can be switched on and off separately. A second row of nozzles may be arranged in front of the nozzles at a distance which ensures that the water jets do not influence each other. The water pressure of the water supplied to the second row of nozzles is preferably lower than the water pressure supplied to the first row of nozzles.

Descaling device and method

A driver for rolled strip includes a first roll which is mounted so as to be essentially stationary and a second roll which is adjustable relative to the first roll. The second roll is supported in a swivel frame which is adjustable by a pressure medium cylinder. The swivel frame is composed of two oppositely located links which are connected in the area of their common swivelling axis by a base which is supported on both sides thereof in the driver frame. The links can be adjusted by pressure medium cylinders which can be actuated separately and the base connecting the links is constructed as a torsion spring.

Strip pinch apparatus

In a strip reel for winding up metal strips to form a coil and winding off metal strips from a coil, respectively, in such a way that the edges are aligned, particularly for winding a rolled hot strip, a driven reel mandrel which is supported so as to be rotatable, substantially comprising a mandrel body, segments and spreading bar, wherein the reel mandrel can be spread in the radial direction by the spreading bar, which is movable axially in the mandrel body, with the intermediary of a coupling of a rotating drive, it is suggested that the reel mandrel be equipped with a device for auxiliary spreading, which device acts mechanically on the axial movability of the spreading bar in the event that the coil cannot be easily removed from the winding mandrel because of disturbances.

Reel mandrel with auxiliary spreading for a strip reel

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Hilchenbach, Germany

Joachim Pfeiffer