306◆ 北京科技大学学报 2000年第4期 壳厚度的增加而增加，表明这时已经达到稳定 Continuously Cast Slabs with Liquid Core.Ironmaking 轧制状态. and Steelmaking,1993,20(4):264 (③)对于坯壳厚度一定的铸坯，随压下率增 3干勇，陈栋梁，薄板坯连铸液芯压下过程的数值仿真. 钢铁，1999,34(6)：27 加，铸轧时坯壳中的应力不发生显著变化，铸轧 4 Kelly J E,Michalek K P.O'cnnor T G,et al.Initial Devel- 时铸坯角部的应力大于铸坯宽面中心的应力. opment of Thermal and Stress Fields in Continuously Cast (4)对于坯壳厚度一定的铸坯，宽面坯壳中 Steel Billets.Metall Trans A,1988,19A:2589 心和铸坯角部的等效塑性应变都随压下率的增 5 Tszeng TC,KobayashiS.Stress Analysis in Solidification 加而增大，铸轧时铸坯角部的等效塑性应变大 Processes:Application to Continuous Casting.Interna- tional Journal of Machine Tools and Manufacturing,1989, 于宽面坯壳中心的等效塑性应变， 291):121 参考文献 6逯洲威，蔡开科，张家泉.薄板坯连铸液芯铸轧铸坯 变形特点.北京科技大学学报，1999,21(5)：432 】袁集华，于登龙.薄板坯连铸带液芯轻压下技术.炼钢，7 Meroni U,Filippi P.Sof Reduction System in Danieli's 1997,(2):5 Thin Slab Caster.Danieli News (News in Flat Products), 2 Cremer B,PawelskiO,Rasp W.Rolling Characteristics of 1995,(5):14 Three Dimensional Numerical Simulation of Stress and Strain distribution during Cast-rolling with Liquid Core in Thin Slab Continuous Casting LU Zhouwei,CAI Kaike Metallurgy School,UST Beijing,Beijing 100083,China ABSTRACT Rolling characteristics of continuously cast slabs with liquid core is studied with the aid ofelas- tic-plastic and thermal-mechanical coupled FEM.The effects of shell thickness and related height reduction on stress and strain distribution are analyzed during cast-rolling with liquid core in thin slab continuous casting. The stress and strain of the shell increase with increasing shell thickness for the same related height reduction. The strain of the shell increases with increasing related height reduction for the same shell thickness. KEY WORDS thin slab continuous casting;cast-rolling;stress and strain distribution. 3 06 . 北 京 科 技 大 学 学 报 2 0 0 0年 第 4期 壳厚度 的增 加 而 增加 , 表 明这 时 已 经 达 到 稳 定 轧制状态 . (3 ) 对于 坯 壳厚 度一 定 的铸坯 , 随 压 下 率增 加 , 铸轧 时坯 壳中的应力 不 发 生 显 著变化 , 铸轧 时铸坯角部 的应 力大于 铸坯宽面 中心 的应 力 . (4 ) 对于 坯壳厚度一 定 的铸坯 , 宽面坯 壳中 心 和 铸坯角部 的等效塑 性应变都随压 下 率的增 加而 增 大 , 铸 轧时 铸坯角部 的等效 塑性应 变大 于 宽面坯壳 中 心 的等 效塑 性应变 . 参 考 文 献 1 袁集 华 , 于登 龙 . 薄板 坯连铸 带液芯 轻压 下技术 . 炼钢 , 19 9 7 , ( 2 ) : 5 2 C er m e r B , P aw e l s ik o , Ra s P W. Ro ll in g C h ar e t e r i s t i e s o f C o in inu o u s ly C as t S l a b s w iht L iq u id C o er . lor nIU iak n g an d S t e e lm ak i n g , 19 9 3 , 2 0 ( 4 ) : 2 6 4 3 干勇 , 陈栋梁 . 薄板坯连铸 液芯压 下过程 的数值仿真 , 钢铁 , 19 9 9 , 3 4 ( 6 ) : 2 7 4 K e lly J E , M i e h a lek K P, 0 , e n o r T G , e t a l . I n i ti a l D e v e l - op m e in o f hT e mr a l an d Setr s s Fi e ld s in C o n tin u ou s ly C as t St e e l B i ll e st . M e at ll rT an s A , 19 88 , 19 A : 2 5 8 9 5 sT ez n g T C , OK bay as hi S . Setr s s A n a 1y s i s i n S o lid iif e at i o n P r o e e s s e s : A P Pli e at i o n ot C o n t i n u o u s C as t i n g . I net m a - t i o n a l J o mU a l o f M a e ih n e OT o l s an d Man u acf t u ir n g , 1 9 8 9 , 2 9 ( l ) : 12 1 6 途 洲威 , 蔡开科 , 张 家泉 . 薄 板坯连 铸液 芯铸 轧铸坯 变形特 点 . 北 京科技 大学学 报 , 19 9 9 , 2 1 ( 5 ) : 4 3 2 7 M e r o in U , Fi li p i .P S o fl eR d u e ti o n S y s t e m i n D an i e 1i , s hT i n S l ab C as t e -r D an i e li N e w s (N e w s in F lat P r do u cst ) , 1 99 5 , ( 5 ) : 1 4 卫肚e e D im e n s i o n a l N um e ir e a l S im u lat i o n o f S tr e s s an d S tr a i n d i s itr b ut i o n d u ir n g C a s t 一 r o lli n g w it h L iqu i d C o r e i n hT i n S l a b C o n t i n u o u s C a s t i n g L U hZ 口 uw ie, 〔〕搜 I K d ike M aet ll u r gy S e h o l , U S T B e ij i n g , B e ij in g 10 0 0 8 3 , C h i n a A B S T R A C T oR ll ign e h ar a e t e ir st i e s o f c o n ti n u ou s l y e a st s lab s w iht liqu id c o r e i s s tu d i e d w iht ht e a id o f e l a s - t i e 一 Pl a st i c an d ht e rm a l 一 m e e h an i e a l e o uP l e d FE M . hT e e fe e t s o f sh e 11 ht i e kn e s s an d r e 1 a t e d h e i ght re du e it o n o n str e s s an d s t r a in d l s itr b ut i o n ar e an a ly z e d d u r i n g e a st 一 r o llin g w iht liqu id c o r e in ht in s lab e o in inu o u s e a s t in g . hT e s tr e s s an d s atr in o f ht e s h e ll in e re a s e w iht in e re a s i n g s h e ll ht i e kn e s s of r ht e s am e r e l ate d h e i ght r e du e t i o n . hT e s atr in o f hte s h e ll in e r e as e s w iht in c r e a s in g r e l a te d h e i ght r e du e t i o n of r ht e s am e s h e ll ht i c 知 e s s . K E Y W O R D S t h i n s lab e o n t i n u ou s e a s t in g : e as t 一 r o llin g : s tr e s s an d s tr a in d i s itr b u t l o n