Process of coating a metal strip with high-viscosity coating material
AssigneeNippon Steel Corporation
InventorsMakoto Yoshida, Fumio Yamamoto
Life of this patent
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Abstract
An apparatus for applying a coating of high-viscosity coating material onto a metal strip at high speed, wherein the apparatus has a roll having recesses or grooves thereon; a supplying source for forcedly filling the coating material in the recesses or grooves provided on the roll; a doctor for removing excessive coating material remaining on the roll having recesses or grooves other than the coating material filled in the recesses or grooves; a coating roll which rotates in contact with the roll having recesses or grooves; at least one smoothing roll of smaller diameter which rotates in contact with the coating roll; and a back-up roll which holds the metal strip against the coating roll.
Claims5
A process of coating a metal strip with a high-viscosity coating material, which comprises:
- forcedly applying the coating material, having a viscosity of at least 500 cp, and being under a pressure of at least 0.2 kg/cm.sup.2, to the surface of a gravure roll rotating at a circumferential speed of at least 50 m/min;
- removing any excess of said coating material from said surface of said gravure roll;
- transferring said coating material remaining on said surface of said gravure roll to a coating roll through a transfer roll;
- and
- coating said metal strip, running at a speed of at least 50 m/min, with said coating material from said coating roll.
Dependencies are inferred from the claim text.