Ultrasonic testing method

专利名称：Ultrasonic testing method发明人：春田 石男,松田 皓平,戸江 博継,皐月 貴史申请号：JP2018061523申请日：20180328公开号：JP2019174239A公开日：20191010

专利附图：

摘要：Problem to be solved: to provide an ultrasonic scratch detection methodcapable of detecting accurately regardless of the inclination of the wound in the

predetermined region of the central portion of a substantially cylindrical specimen, suchas round bar steel. The ultrasonic testing method according to the present invention is an

arrangement step of disposing an ultrasonic probe 10 having a plurality of vibrators 11so as to be opposed to a side surface of a substantially cylindrical type of injectingmaterial P, and a predetermined rotation of the ultrasonic probe relative to the

circumferential direction of the subject to be rotated and prescribed in the center of thesubject A flaw detecting method for detecting the presence in the inspection region a.Inthe arrangement process, the plurality of oscillators are arranged so as to cover the flawarea along the direction substantially orthogonal to the axial direction of the subject tobe seen from the opposite direction of the ultrasonic probe and the scratch, and theultrasonic wave transmitted from the plurality of oscillators in the flaw step is incidentupon the subject In the path of the channel, they are arranged to propagate substantiallyparallel to each other.Diagram

申请人：日本製鉄株式会社

地址：東京都千代田区丸の内二丁目６番１号

国籍：JP

代理人：特許業務法人まこと国際特許事務所

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