光学式による熱間鋼材表面きず検査技術の開発

概要

論文の詳細を見る
Optical inspection methods using CCD(Charge Coupled Device) camera and light source are normally used for inspection of flat surface. These methods, however, are hardly used for hot steels, nearly 1000 ℃, because of the radiation of light and heat from the steel surfaces. The inspection technique for hot flat bars has been developed by using a metal halide lamp. The beam of the light is straightened by using two orthogonal cylindrical lenses. The angle of the lightening up is within five degrees from parallel to the bar surface. This report shows the availability of the technique for detecting flaws, which depths are deeper than 0.2 mm, caused by rolling processes.
電気製鋼研究会の論文