Patent ID: 6216769
Filing Date: 2001-04-17
Classification: B22D

Abstract:
A strand guide for use in a continuous casting plant for continuous casting of a strand having a soft reduction zone, comprising:a segment having oppositely positioned strand guide rollers defining a gap between said rollers through which the strand is guidable;four servo piston-cylinder units operatively connected to said segment for continuously adjusting said gap, each said four servo piston-cylinder units having a piston movably mounted within a cylinder, said piston dividing said cylinder into a first part on one side of said piston and a second part on the opposing side of said piston;a position transmitter connected to each said four servo piston-cylinder units;a shared servo valve connected to said first parts and said second parts of two adjacent ones of said four servo piston-cylinder units, wherein said position transmitters of said two adjacent ones of said four servo position-cylinder units are connected to a regulating means such that said two adjacent ones of said four servo piston-cylinder units are simultaneously adjustable as a unit in response to said shared servo valve; andan individual servo valve operatively connected to each of the other of said four servo piston-cylinder units so that said each of the other of said four servo piston-cylinder units is independently adjustable.