Granted Patent B2

US 12,285,792 · App. 17/429,819 · Granted Apr 29, 2025

Inventor: Tatsuya Yamazaki (Tokyo, JP)

Assignee: JFE Steel Corporation

B21B37/00G05B19/41885G05B2219/33034

Abstract

Claims (51)

1. A mill setup value determining method for a rolling mill, comprising:

a mill setup value calculating step of:

inputting, into a trained model, a mill setup value for a target rolled material and a mill setup value that is for a rolled material manufactured by the rolling mill before manufacture of the target rolled material and that reflects setup value modification by an operator's manual manipulation; and

obtaining a mill setup value for the target rolled material, wherein

the trained model has been trained with input comprising:

manufacturing conditions for the target rolled material; and

mill setup values that are for the rolled material manufactured by the rolling mill before the manufacture of the target rolled material and that reflect setup value modification by an operator's manual manipulation, and

output being mill setup values for the target rolled material;

wherein

the trained model includes:

a first trained model obtained by training a learning model with input comprising:

manufacturing conditions for the target rolled material; and

mill setup values that are for a rolled material manufactured by the rolling mill before manufacture of the target rolled material and that reflect modification by an operator's manual manipulation, and

output being mill setup values for the target rolled material; and

a second trained model obtained by training a learning model with input being manufacturing conditions for the target rolled material, and

output being mill setup values for the target rolled material, and

the mill setup value calculating step includes:

obtaining, as output, a first mill setup value for the target rolled material by inputting, into the first trained model, a manufacturing condition for the target rolled material and a mill setup value for a rolled material manufactured by the rolling mill before the manufacture of the target rolled material, if it is determined, on the basis of a predetermined determination condition, that using a previous mill setup value is appropriate;

obtaining, as output, a second mill setup value for the target rolled material by inputting, into the second trained model, a manufacturing condition for the target rolled material, if it is determined, on the basis of the predetermined determination condition, that using the previous mill setup value is not appropriate; and

changing a setting of the rolling mill with the obtained first or second mill setup values.

2. The mill setup value determining method for a rolling mill according to claim 1 , wherein

the trained model is obtained by training a learning model with input comprising:

manufacturing conditions for a target rolled material;

manufacturing conditions for a rolled material manufactured by the rolling mill before manufacture of the target rolled material; and

mill setup values that are for the rolled material manufactured by the rolling mill before the manufacture of the target rolled material and that reflect setup value modification by an operator's manual manipulation, and

output being mill setup values for the target rolled material, and

the mill setup value calculating process includes obtaining, as output, a mill setup value for the target rolled material by inputting, into the trained model, a manufacturing condition for the target rolled material, a manufacturing condition for the rolled material manufactured by the rolling mill before the manufacture of the target rolled material, and a mill setup value for the rolled material manufactured by the rolling mill before the manufacture of the target rolled mill.

3. A rolled material manufacturing method comprising:

allocating one or more rolling conditions; and

manufacturing a rolled material with the allocated one or more rolling conditions using the changed setting according to claim 1 .

4. A mill setup value determining device for a mill setup process for a rolling mill, the mill setup value determining device comprising:

a mill setup value calculating device configured to obtain, as output, a mill setup value for a target rolled material by inputting, into a trained model, a manufacturing condition for the target rolled material and a mill setup value for a rolled material manufactured by the rolling mill before manufacture of the target rolled material, wherein

the trained model is obtained by training a learning model with input comprising:

manufacturing condition for the target rolled material; and

mill setup values that are for the rolled material manufactured by the rolling mill before the manufacture of the target rolled material and that reflect setup value modification by an operator's manual manipulation, and

output being mill setup values for the target rolled material;

wherein

the trained model includes:

a first trained model obtained by training a learning model with input comprising:

manufacturing conditions for the target rolled material; and

mill setup values that are for a rolled material manufactured by the rolling mill before manufacture of the target rolled material and that reflect modification by an operator's manual manipulation, and

output being mill setup values for the target rolled material; and

a second trained model obtained by training a learning model with input being manufacturing conditions for the target rolled material, and

output being mill setup values for the target rolled material, and

the mill setup value calculating process includes:

obtaining, as output, a first mill setup value for the target rolled material by inputting, into the first trained model, a manufacturing condition for the target rolled material and a mill setup value for a rolled material manufactured by the rolling mill before the manufacture of the target rolled material, if it is determined, on the basis of a predetermined determination condition, that using a previous mill setup value is appropriate; and

obtaining, as output, a second mill setup value for the target rolled material by inputting, into the second trained model, a manufacturing condition for the target rolled material, if it is determined, on the basis of the predetermined determination condition, that using the previous mill setup value is not appropriate; and

a control device configured to change a setting of the rolling mill with the obtained first or second mill setup value.

5. A rolled material manufacturing method comprising:

allocating one or more rolling conditions; and

manufacturing a rolled material with the allocated one or more rolling conditions using the changed setting according to claim 4 .

Assignments (1)

Priority Claims (1)

Continuity (1)

References Cited (27)