Method and apparatus for thickness control of a coating

Details Method and apparatus for thickness control of a coating Method and apparatus for thickness control of a coating

1981-03-02

1982-08-24

Lusignan, Michael R.

Coating processes

With post-treatment of coating or coating material

Gas jet or blast mechanically treats coating

118 63, 118 67, 118419, 427349, 4273981, 4274345, B05C 312, B05D 304

Patent

active

043461298

ABSTRACT:
An improved air knife apparatus and method for controlling coating thickness on a moving metal strip. Air flow from blowers is supplied through a plenum chamber common to an air knife and a diffuser spaced along the path of strip travel. A valve between the plenum chamber and diffuser controls the relative flow of air through the knife and diffuser to establish the desired pressure and flow at the air knife to modify the thickness of the coating on the strip. The flow through the diffuser is directed against the strip at a location subsequent to the knife in the direction of strip travel, to chill the coating.

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patent: 4128668 (1978-12-01), Ernest
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