APPARATUS FOR CONTROLLING QUALITY OF STEEL PRODUCT

PROBLEM TO BE SOLVED: To provide instruction values for manufacturing conditions in the a subsequent process, which satisfy required specifications, according to the actual manufacturing results in the preceeding process. SOLUTION: An apparatus for controlling the quality of a steel product comprises a manufacturing information memory means for storing each order and result values on a material composition and an operating condition, and the quality result, on previously manufactured every product, as examples; a quality estimation means for estimating the quality to be obtained when the product is manufactured on the basis of the instruction values on the material composition and the operating condition, input by using the stored data in the above manufacturing information memory means; and a product quality control means for acquiring the required specifications and the manufacturing results in the upper process, and outputting the order value for the operating condition in the lower process, which can manufacture the product of satisfying the required specifications, from the estimated quality and the estimated error which have been output from the above quality estimation means. COPYRIGHT: (C)2003,JPO