Abstract
A color TV system for inspection of hot slabs has been developed. The system consists of a color TV camera with a mechanical shutter, video disk recorders, and color monitors.
A hot slab under slabbing is shot to be composed of five pictures, and the video disk recorders record the five pictures of the slab. These pictures are simultaneously displayed on five large color monitors. The inspector can easily see surface flaws on the still enlarged pictures.
This system has been installed in Wakayama Steel Works of Sumitomo Metal Ind., Ltd. since 1976, and is used on hot direct rolling from the slabbing mill to the hot strip mill.
