Method of manufacturing conductive metal sheet and apparatus for manufacturing conductive metal sheet

A method of manufacturing a conductive metal sheet, the method comprises cooling and solidifying molten conductive metal flowing out of a melting furnace by a cooling device to form a conductive metal sheet, cooling a raw material in which all of the conductive metal is in a molten state to make the raw material become a pre-product of which a part is solidified and the rest is in a molten state, and cooling further the pre-product to make the pre-product become the conductive metal sheet as a product in which all of the molten metal is solidified, the method comprising:

• applying a magnetic field to the raw material or the pre-product in a thickness direction by a magnetic field unit including permanent magnets;
• making alternating current flow at least between a front position and a rear position of a lengthwise direction of the magnetic field unit, and making the alternating current flow through at least one of the raw material and molten metal of the pre-product, so that the alternating current intersects the magnetic field;
• and
• applying vibration to at least one of the raw material and the molten metal of the pre-product by an electromagnetic force generated due to the intersection to modify the molten metal and form the conductive metal sheet in which all of the molten metal is solidified.