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Patent Searching and Data


Title:
STEEL SHEET TEMPERATURE CONTROL DEVICE AND TEMPERATURE CONTROL METHOD
Document Type and Number:
WIPO Patent Application WO/2017/130508
Kind Code:
A1
Abstract:
In the steel sheet temperature control device 1, which is an embodiment of the present invention, a state variable/disturbance-estimating unit 15 simultaneously estimates the values for a control model state variable and a temperature disturbance variable. Using the values for the control model state variable and the temperature disturbance variable, a furnace temperature change magnitude-calculating unit 16 calculates the furnace temperature change magnitude for each heating zone under constraint conditions so that the sum of squares of the deviation between the target value and actual value of the temperature of the steel sheet on the outlet side of the heating furnace is minimized. A furnace temperature control unit 17 controls the flow rate for fuel used in each heating zone so that the calculated furnace temperature change magnitude can be achieved.

Inventors:
OGASAHARA TOMOYOSHI (JP)
YAMADA GOKI (JP)
Application Number:
PCT/JP2016/082552
Publication Date:
August 03, 2017
Filing Date:
November 02, 2016
Export Citation:
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Assignee:
JFE STEEL CORP (JP)
International Classes:
C21D11/00; C21D9/56
Foreign References:
JPH01184233A1989-07-21
JPS60135531A1985-07-18
JPH03236422A1991-10-22
JPH04168232A1992-06-16
JP2014500939A2014-01-16
JPS5510787B21980-03-19
JPS6428329A1989-01-30
JPH03236422A1991-10-22
Other References:
See also references of EP 3409797A4
Attorney, Agent or Firm:
SAKAI INTERNATIONAL PATENT OFFICE (JP)
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