Surface enhanced metal press plates for use in manufacture of laminates and multilayer materials and method of making same

A method for cleaning and reprocessing a roughened matte surface on a metal plate, comprising steps of:

• providing a metal plate constructed of a suitable material with a first planar surface;
• conveying the metal plate to a treatment area;
• providing a first delivery mechanism at the treatment area to project glass beads in at least one pressurized stream against the first surface of the metal plate;
• conveying the metal plate at a predetermined speed and at a predetermined distance below the first delivery mechanism;
• projecting the pressurized stream of glass beads against the first surface;
• and
• oscillating the first delivery mechanism above the first surface at a predetermined oscillation speed and for a predetermined number of oscillations to project glass beads against substantially the entire first surface of the metal plate as a first treatment.

A method for producing a roughened matte surface on a metal plate, comprising steps of:

• providing a metal plate constructed of a suitable material with a first planar surface;
• conveying the metal plate to a treatment area;
• providing a first delivery mechanism at the treatment area to project glass beads in at least one pressurized stream against the first surface of the metal plate;
• conveying the metal plate at a predetermined speed and at a predetermined distance below the first delivery mechanism;
• projecting the pressurized stream of glass beads from the first delivery mechanism against the first surface;
• oscillating the first delivery mechanism above the first surface at a predetermined oscillation speed and for a predetermined number of oscillations to project glass beads against substantially the entire first surface of the metal plate as a first treatment;
• providing a second delivery mechanism to project glass beads in at least one pressurized stream against a second planar surface of the metal plate opposite the first surface;
• projecting the pressurized stream of glass beads from the second delivery mechanism against the second surface;
• and
• oscillating the second delivery mechanism below the second surface at a predetermined oscillation speed and for a predetermined number of oscillations to project glass beads against substantially the entire second surface of the metal plate as a first treatment.