Analysis of Spalling in Roughing Mill Backup Rolls of Wide and Thin Strip Hot Rolling Process
作者: Qiang DongJian‐guo CaoHong‐bo LiYun‐song ZhouTan‐li YanWu‐zhou Wang
作者单位: 1School of Mechanical Engineering University of Science and Technology Beijing Beijing 100083 China
2 Wuhan Iron & Steel (Group) Corp. Wuhan 430083 Hubei China
刊名: steel research international, 2015, Vol.86 (2), pp.129-136
来源数据库: Wiley Journal
DOI: 10.1002/srin.201300476
关键词: spallingrolling contact fatiguebackup rollhot rolling
原始语种摘要: In this paper, the spalling causes of backup rolls in a roughing mill of a hot strip rolling mill were investigated. The roughing mill withstood extreme service conditions with long service cycles for backup and work rolls, a large variety of the same width rolling campaigns, severe and non‐uniform wear contours of backup and work rolls. Analysis of cyclic stress applied on backup rolls indicated that contact stress played a dominant role in rolling contact fatigue which led to spalling on the backup roll surface. A 3D finite element model of roll system was established and contact stresses between rolls in whole service periods of backup and work rolls were calculated. The simulation results showed that roll wear had significant impact on contact stress distribution. In particular, the...
全文获取路径: Wiley  (合作)

  • backup 储备
  • rolls 对辊机
  • spalling 脱落
  • contact 接触圈
  • roughing 粗选
  • rolling 
  • where 哪里
  • service 服务
  • Analysis 分析
  • contour 轮廓