Wean United, Inc.

Joseph I Greenberger

Frederick C Kohring

A thin coherent, high pressure volume, curtain water wall of liquid is applied in a transverse direction across a surface of a strip in a hot rolling mill to uniformly remove oxide scaling from the strip's surface. A header is designed to have several passages which produce several discrete liquid flows which are directed into a pressure equalization zone prior to their entering the nozzle section of the header to create upon the flow's exiting from the nozzle section a curtain wall of fluid having a thickness which delivers a uniform sufficient impact force against the strip's surface for the descaling process thereof.

Apparatus for descaling hot strip in a rolling mill

A header for applying a low pressure, non-turbulent, coherent curtain wall of coolant of a substantial uniform extent and thickness transversely across the rolling surface of a work roll of a hot rolling mill or the like, which curtain wall in cross-section is in the form of the uniform concentric enveloping camber of a portion of a roll barrel. The placement of the applied wall of coolant is controlled so that the built-up heat in each succeeding work roll portion leaving contact either with the hot material being rolled or its associated back-up roll in a multi-high mill is substantially and uniformly removed, and optimized cooling thereof is achieved. An adjustable discharge slot which may be tapered to discharge the curtain wall across the length of the roll's camber in a manner to control cooling of the work roll from end to end, i.e. the cooling rate of the length of a roll would have a parabolic curve.

Method and apparatus for treating work rolls in a rolling mill

An apparatus for distributing curtain walls of coolant around a passing hot rolled, extruded, or drawn round, metal article, and optimizing the cooling thereof. A circular liquid coolant header comprises an enclosure divided into two abutting annular compartments; the first compartment containing a smaller annular concentric compartment with openings communicating with the second abutting compartment, which, in turn, has several circumferentially positioned and evenly spaced nozzle assemblies for delivering the curtain walls. A nozzle assembly is located between two semi-round compartment inlets which receive coolant from the first compartment and diffuse and direct the coolant flow into a respective nozzle assembly.

Apparatus for optimizing the cooling of a generally circular

A water discharging system for cooling hot rolled steel strip including a header for delivering water to the strip, a water supply system for the header, two fixed overflow pipes arranged to control the volume output of said header: one capable of producing the full flow capacity, and the other a half flow capacity of the water delivered by the header, and a valve for bringing into operation one or the other of said overflow pipes.

Liquid discharge apparatus

A roof assembly for an electric arc furnace formed by a series of water cooled panels supportingly arranged between the water conveying outer ring and a water conveying center ring encircling the electrode-refractory area. One or more of these panels are constructed of a copper face sheet brazed to a steel backing sheet having groups of several machined traverse passageways, and are located in critical areas in the roof. Communicating with each group of passageways is a water entry header and a water discharge header. The outer ring acts as both a water source and drainage for the panels and center ring. The panels are suspended from a self-supporting spider web structure which carries the center ring and is supported by the outer ring.

Roof assembly for an electric arc furnace

The disclosure pertains to an arrangement for cooling a heated workpiece, such as, strip or slab as it issues from a rolling mill or continuous slab caster. The longitudinally moving workpiece is caused to pass between a number of coolant discharge headers arranged above and below the workpiece in which, during its cooling, the coolig rates of the upper and lower surfaces of the workpiece differ. The effective discharge of the headers is varied to equalize the cooling rates of the upper and lower surfaces of the workpiece to symmetrically cool the workpiece.

Method and apparatus for symmetrically cooling heated workpieces

An arrangement for controlling the temperature of an arbor-sleeve type roll employed in a rolling process such as in a briquetting machine by transporting temperature control medium to the extremities of the working surface of a removable sleeve by providing in the arbor a system of passageways extending radially and terminating at a point beneath the outer surface of the arbor and by providing in the sleeve a system of interconnecting axially extending passageways. Both of these systems are joined by manifold ring assemblies mounted externally of the roll and which include an expandable bellows which compensate for thermal variation of the roll during the briquetting process. Two other rings, also mounted externally, are connected to the opposite sides of the arbor and sleeve, thereby preventing relative movement between the arbor and sleeve and still permitting the quick removal and replacement of the sleeve.

Rolls in a briquetting machine or like machines

A strip contacting device used between stands of a rolling mill for simultaneously performing combined modes of operation, such as a shapemeter/looper or a shapemeter/tensiometer. It consists of a frame with a pivotal arm connected to a piston cylinder assembly, whereby a desired mode can be carried out by using a shapemeter roller and allowing the arm to either float or assume a fixed position relative to the passline of the mill.

Combination strip contacting device for use in a rolling mill

An apparatus for distributing a controlled flow of water onto passing hot strips in proportion to the varying width of strips as they issue from a hot strip rolling mill.

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Pittsburgh, PA, United States of America

Joseph I Greenberger