立辊孔型内倒角半径对轧件变形的影响  

Influence of Groove Fillet Radii of Edger Roll on Slab Deformation

作　　者：喻海良[1] 刘相华[1] 李长生[1] 

机构地区：[1]东北大学轧制技术及连轧自动化国家重点实验室,辽宁沈阳110004

出　　处：《钢铁》2006年第6期47-51,共5页Iron and Steel

基　　金：国家重大基础研究发展规划项目(G2000067208-4)

摘　　要：采用显式动力学有限元方法,对立辊孔型内倒角半径R为30、50、801、10 mm 4种情况下多道次立-平轧制过程进行了模拟。分析了立辊孔型内倒角半径对轧件切头尾量、轧件稳定段轧件边部变形程度的影响。研究发现:既定条件下,第1道次立-平轧制过程中,随内倒角半径的减小头尾不均匀区域长度减少,第2、3道次立-平轧制过程中,随内倒角半径的增加,头尾不均匀变形区域长度道次增加量减少;对比采用R为30 mm的孔型立辊和R为110 mm的孔型立辊轧后轧件的头尾不均匀长度,前者比后者少5.03%;轧件稳定段轧件变形程度随着孔型立辊内倒角半径的增加而减少。The V-H（vertical-horizontal） rolling process with groove fillet radii of vertical roll R of 30, 50, 80, 110 mm was simulated by explicit dynamic FEM. The influence of groove fillet radii of vertical rolls on cropping and margin deformation of slab were analyzed. The results show： during the first V-H rolling pass, the non-uniform region length of slab head and tail is decreased as fillet radius reduced; during the second and third passes, pass incre- ment of non-uniform region length of slab is decreased as fillet radius increased; comparing of the non-uniform region length with V-roll R 30 mm and V-roll R 110 mm, the former is 5.03% less than the later; the deformation degree of stable segment is reduced as fillet radius increased.

关 键 词：内倒角半径 切头尾 立辊 立-平轧制 

分 类 号：TG332[金属学及工艺—金属压力加工]