Plating weight control device and control method
Number of patents in Portfolio can not be more than 2000
United States of America
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Dec 17, 2024
Grant Date -
Nov 11, 2021
app pub date -
Sep 20, 2019
filing date -
Sep 20, 2019
priority date (Note) -
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status (Latency Note)
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Abstract
An apparatus for controlling coating weight of a steel sheet by using an air knife includes: an air knife condition derivation unit configured to derive a first air knife gap and a final air knife pressure for target coating weight, and derive a second air knife gap for achieving the target coating weight at a current air knife pressure; and an air knife gap compensation unit configured to determine a final air knife gap according to a gap compensation amount that is a difference between the second air knife gap and the first air knife gap and a gap compensation ratio based on an air knife pressure variation amount for a control period, in which the control period is a period for updating an air knife condition for the target coating weight.
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