Decision of Optimum Grinding Condition by Pass Schedule Change

열간압연 스케줄변경에 따른 최적연삭조건 결정

  • Bae, Yong-Hwan (Department of Mechanical Education, Andong National University)
  • 배용환 (안동대학교 기계교육학과)
  • Published : 2008.12.31

Abstract

It is important to prevent roll failure in hot rolling process for reducing maintenance cost and production loss. The relationship between rolling pass schedule and the work roll wear profile will be presented. The roll wear pattern is related with roll catastrophic failure. The irregular and deep roll wear pattern should be removed by On-line Roll Grinder(ORG) for roll failure prevention. In this study, a computer roll wear prediction model under real process working condition is developed and evaluated with hot rolling pass schedule. The method of building wear calculation functions for center portion abrasion and marginal abrasion respectively was used to develop a work roll wear prediction mathematical model. The three type rolling schedule are evaluated by wear prediction model. The optimum roll grinding methods is suggested for schedule tree rolling technique.

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