Castrip, LLC

Brett Gray

Nikolco S Nikolovski

Peter Andrew Woodberry

Hiroaki Kuwano

John Albert Ziegelaar

Strip material is fed to a reduction rolling mill by a steering device in the form of a pinch roll stand comprising pinch rolls to which strip gripping forces are applied by hydraulic cylinder units located at the ends of the pinch rolls. A reduction mill is similarly provided with a pair of hydraulic cylinder units which are independently operable to vary the pressure applied by the reduction rolls across the strip. Sensors sense the position of the strip at a first location in advance of the pinch rolls and a second location in advance of the rolling mill. This output of sensors is fed to a controller which controls operation of both sets of hydraulic cylinder units to steer the strip.

Method and apparatus for steering strip material

Twin roll casting of metal strip ( ) by rotation of parallel casting rolls ( ) supplied with molten metal through distributor ( ) and delivery nozzle ( ). X-ray scanner ( ) continuously scans the thickness of strip ( ) to produce a signal which is a continuous measure of thickness variation along the strip due to eccentricities of the casting rolls ( ). This signal controls operation of roll drive motors ( ) to impose a pattern of speed variation on the rolls so as to reduce the amplitude of the thickness variations.

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Mangerton, Australia

Brett Gray