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Method for evaluating microstructure of rolled steel plate, method for evaluating microstructure of rolled steel plate, manufacturing equipment for steel material, method for producing steel material, and quality control method of steel material
Method for evaluating microstructure of rolled steel plate, method for evaluating microstructure of rolled steel plate, manufacturing equipment for steel material, method for producing steel material, and quality control method of steel material
The metal structure evaluation device for a rolled steel sheet according to the present invention is different in at least two or more processes for measuring the magnetic characteristics of the evaluation target points on the surface of the rolled steel sheet by applying a magnetic field in one direction on the surface of the rolled steel sheet. By performing on the magnetization direction, the magnetic characteristic measurement unit that measures the magnetic characteristics of at least two or more different magnetization directions for the evaluation target point, and the metal structure at the evaluation target point using the magnetic characteristics measured by the magnetic characteristic measurement unit. It is provided with a determination unit for determining.
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