Patent ID: 6056039
Filing Date: 2000-05-02
Classification: B22D,F28F

Abstract:
A rotary device for the making of a flat product (P) by casting a liquid metal on at least a rotary mould (A) limited by a revolution cylindrical wall (2) around an axis (x'x) having an outer surface (21) and an inner surface (22) and surrounding a fixed core (1) limited by a circular surface (11) centred on the axis (x'x) and connected with means (5, 6) to provide a cooling fluid circulation between the inner surface (22) of the wall (2) and the circular surface (11) of the core (1), the liquid metal being cooled along an angular sector of the outer surface (21) of the rotary cylindrical wall (2), in order to obtain a flat product (P) at least superficially solidified and distant of the cooled wall (2) along the extraction direction, characterised in that the cooled wall on which the metal is cast is made of a thin cylindrical envelope forming a shell (2) simply inserted on the circular surface (11) of the fixed core which provides the central section of a fixed shaft (1) to hold and center said shell (2), said circular surface (11) having a radius substantially equal, down to the assembly clearance, to that of the inner surface (21) of the wall (2) and covering an angular sector corresponding at least to the angular sector of the shell (2) on which the metal is cooled and in that the shaft (1) is connected to thrust load application means on the inner surface (21) of the shell (2) according to a direction opposite to the metal cooling sector for the application of the shell (2) onto said circular surface (11) of the shaft (1) with interposition of a cooling fluid layer in order to provide a fixed bush for the centering of the shell (2) onto the shaft (1), the cooling fluid providing lubrication of said bush.