METHOD FOR INSPECTING QUALITY OF ROLLING PRODUCT

摘要

A method for inspecting the quality of a rolling product is disclosed. According to one aspect of the present invention, the method for inspecting quality of a rolling product includes: a step of scanning an inclusion of a rolling product by performing supersonic flaw detecting on the rolling product; a step of withdrawing an actual cross-section area from a flow detection area of the scanned inclusion; a step of withdrawing a size before rolling of the inclusion from the actual cross-section of the inclusion; and a step of determining quality of the rolling product by comparing the size before the inclusion with a preset allowable value.