US 12,390,846 B2
Method of detecting chattering in cold rolling mill, chattering detecting device for cold rolling mill, cold rolling method, cold rolling mill, and method of manufacturing steel sheet
Noriki Fujita, Tokyo (JP); Takuya Kitamura, Tokyo (JP); and Tetsuya Arakawa, Tokyo (JP)
Assigned to JFE Steel Corporation, Tokyo (JP)
Appl. No. 18/276,095
Filed by JFE Steel Corporation, Tokyo (JP)
PCT Filed Oct. 29, 2021, PCT No. PCT/JP2021/040060
§ 371(c)(1), (2) Date Aug. 7, 2023,
PCT Pub. No. WO2022/172525, PCT Pub. Date Aug. 18, 2022.
Claims priority of application No. 2021-021844 (JP), filed on Feb. 15, 2021.
Prior Publication US 2024/0033797 A1, Feb. 1, 2024
Int. Cl. B21B 37/00 (2006.01); B21B 1/28 (2006.01); B21B 38/00 (2006.01)
CPC B21B 37/007 (2013.01) [B21B 38/008 (2013.01); B21B 1/28 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A method of detecting chattering in a cold rolling mill, the method comprising:
a step of predicting occurrence of chattering during rolling of a material to be rolled, by inputting second multidimensional data to a prediction model,
the second multidimensional data having been generated based on condition data corresponding to array data related to the material to be rolled, and
the prediction model having been trained with an explanatory variable and an objective variable,
the explanatory variable being first multidimensional data generated based on one-dimensional array data representing a past rolling record of rolling of rolled materials by means of a cold rolling mill, and
the objective variable being a past record of occurrence of chattering corresponding to the past rolling record.