Development of Diagnosis System for Roll Alignment and Roll Rotation in Continuous Casting Process

Abstract

A new roll alignment checker and a new roll rotation checker, which make it possible to diagnose condition of roll alignment and roll rotation at second cooling water zone in a continuous casting machine, are developed. This diagnosis system has the advantage of high accurate measurement, durability in difficult surroundings, ease of operation and lack of influence of casting time during measurement.
Developed roll alignment checkers and roll rotation checkers are applied to continuous casting machines for slab products. Measurement repeatability, durability of on-line use over a long period and comparison between actual condition of rolls and judgement by using this method are evaluated. As a result, good repeatability of measured data, good durability of on-line use over a long period and good correspondences with actual condition of rolls are verified.
Developed roll alignment checkers and roll rotation checkers will be utilized in continuous casting machines of the steel works, and are expected to contribute to stable operation and casting products with good quality.