Coating control apparatus

Details Coating control apparatus Coating control apparatus

1995-06-07

1997-11-04

Czaja, Donald E.

Coating apparatus

With indicating, testing, inspecting, or measuring means

118 63, 118423, 153091, 427 10, 427348, 427431, 239590, 2395905, B05C 312

Patent

active

056835140

ABSTRACT:
A coating control system is provided enabling continuous operations, free of interruption for coating control purposes, while achieving desired coating weight and thickness profile for the various gages, widths and coating specifications encountered on a given continuous strip production line. In each of a pair of elongated pneumatic dies, a pressurized gas jet is controllably shaped and directed by flow-control means internally-mounted of each pneumatic die to impinge against its respective substrate coated surface with its major directional component of force being controlled to be perpendicularly transverse to the travel path of the coated strip across its full width. Adjustment of such internally-mounted means is coordinated with control of gas pressure supply and/or adjustment of die positioning means to maintain desired coating weight and coating profile across the width of the strip. Pneumatic and other crown-control measures of the invention are exercised along the centerline of the strip enabling production of continuous-strip galvanized steel product having improved tracking and handling properties.

REFERENCES:
patent: 4524716 (1985-06-01), Mueller
patent: 5074242 (1991-12-01), Bricmont
patent: 5401317 (1995-03-01), Cox et al.

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