Material property value estimation method, material property value estimation device, and steel strip manufacturing method

摘要

The performance DB 6 is a manufacturing condition item including component values for each component of steel strip products manufactured in the past and measured values by each measuring device in each of the heating, rolling and cooling steps 12 to 14 collected in the manufacturing process. The value and the material property value are associated with each mesh partitioning the corresponding steel strip product and stored as performance data. The actual value collection device 5 collects measurement values for each mesh partitioning the target steel strip product by acquiring the measurement values obtained by the respective measuring devices while tracking the measurement position in the manufacturing process of the target steel strip product. . The characteristic value estimation unit 23 of the apparatus body 2 uses the component value for each component of the target steel strip product and the collected measurement value for each mesh as the value of the manufacturing condition item for the target steel strip product, and the value of the manufacturing condition item. The material characteristic value corresponding to is estimated for each mesh using the actual data.