Patent ID: 8122940

Claim:
A method for manufacturing a clad magnesium sheet comprising the steps of: feeding aluminum cladding to at least one roll of a pair of rotating rolls; feeding a core of molten magnesium into a continuous casting mold formed by the roll; solidifying the magnesium core by heat extraction to the rolls and through the aluminum cladding; surface treating at least one of the aluminum cladding and the magnesium core to prevent inter-diffusion between the aluminum cladding and the magnesium core; bonding the aluminum cladding with the magnesium core; and extruding the composite magnesium core and aluminum cladding out of the continuous casting mold by a casting load exerted by the rolls, thereby resulting in the clad magnesium sheet having improved paintability, weldability, bonding, corrosion and fire resistance, and surface modulus characteristics.