公开(公告)号：US11029212B2

公开(公告)日：2021-06-08

申请号：US16499812

申请日：2018-04-25

Applicant: NIPPON STEEL CORPORATION

Inventor： Hiroshi Tanei ,  Masato Sugiura ,  Shuichi Yamazaki ,  Yasumitsu Kondo

IPC: G01J5/02 ,  G01J5/00 ,  B21C51/00

Abstract: A scale composition determination device (10) determines that Fe2O3 has been generated in the outermost layer of a scale (SC) in the case where the absolute value of a difference between temperatures of a steel material SM measured by radiation thermometers (20a, 20b) is equal to or more than a predetermined temperature, and determines that Fe2O3 has not been generated in the outermost layer of the scale (SC) in the case where the absolute value of the difference between the temperatures of the steel material SM measured by the radiation thermometers (20a, 20b) is not equal to or more than the predetermined temperature.

公开(公告)号：US11454542B2

公开(公告)日：2022-09-27

申请号：US17243875

申请日：2021-04-29

Applicant: NIPPON STEEL CORPORATION

Inventor： Hiroshi Tanei ,  Masato Sugiura ,  Shuichi Yamazaki ,  Yasumitsu Kondo

IPC: G01J5/00 ,  B21C51/00 ,  G01J5/48

Abstract: A scale composition determination device (10) determines that Fe2O3 has been generated in the outermost layer of a scale (SC) in the case where the absolute value of a difference between temperatures of a steel material SM measured by radiation thermometers (20a, 20b) is equal to or more than a predetermined temperature, and determines that Fe2O3 has not been generated in the outermost layer of the scale (SC) in the case where the absolute value of the difference between the temperatures of the steel material SM measured by the radiation thermometers (20a, 20b) is not equal to or more than the predetermined temperature.

公开(公告)号：US11474032B2

公开(公告)日：2022-10-18

申请号：US16484615

申请日：2018-04-25

Applicant: NIPPON STEEL CORPORATION

Inventor： Masato Sugiura ,  Hiroshi Tanei ,  Shuichi Yamazaki ,  Yasumitsu Kondo

IPC: G01N21/35 ,  G01N33/20 ,  G01N21/71 ,  G01N21/3563 ,  G01N33/2028

Abstract: A scale composition determination device (10) determines that Fe2O3 has been generated in the outermost layer of a scale (SC) in the case where at least one of spectral emissivities at one wavelength and the other wavelength that are measured by radiometers for spectral emissivity measurement (21a, 21b) is not within a predetermined range including spectral emissivities of FeO at one wavelength and the other wavelength, and determines that Fe2O3 has not been generated in the outermost layer of the scale (SC) in the case where all of the spectral emissivities at one wavelength and the other wavelength that are measured by the radiometers for spectral emissivity measurement (21a, 21b) is within the predetermined range including the spectral emissivities of FeO at one wavelength and the other wavelength.