VoL.22 No.6 舒俊等：连铸结晶器保护渣结晶温度 511· 3结论 623 6 McCauley WL,Koul M K.Mold Powder Technology: (1)碱度在1.0~1.40的范围内，碱度升高，保 Bottom Pouring vs.Continuous Casting.In:ISS Mold 护渣的结晶温度先提高后降低，在碱度1.2附近 Powders for Continuous Casting and Bottom Pouring Tee- ming1987.111 出现极大值. 7 Nakato H,Sakuraya T,Nozaki T,et al.Physical and Chemi- (2)在4.0%~12.0%范围内，F-含量增加，保护 cal Properties of Casting Powders Affecting the Mold 渣结晶温度提高， Lubrication During Continuous Casting.In:ISS 69th (3)在基渣中分别添加6.0%~12.0%的Na0, Steelmaking Conference Proceedings.1986.137 0-8.0%的Mg0,0-2.0%的A1,0,随其含量增加， 8 Bommaraju R.Optimum Selection and Application of 保护渣的结晶温度下降 Mold Fluxes for Carbon Steels.In:ISS 74th Steelmaking Conference Proceedings.1991.131 (4)冷却速率在10-50℃/min的范围内，保护 9朱立光，高速连铸保护渣性能优化及基于神经网络 渣的结晶温度随冷却速率的增加稍稍下降. 的连铸保护渣设计专家系统的研究：[博士学位论 参考文献 文].北京：北京科技大学，1997 10 Chavez J F,Rodriguez A,Morales R,et al.Laboratory and 1 Sankaranarayanan S R,Apelian D.Evaluation of Mold Plant Studies on Thermal Properties of Mold Powders.In: Powder Performance via Crystallization Analysis.In:ISS ISS 78th Steelmaking Conference Proceedings.1995.679 75th Steelmaking Conference Proceedings.1992.607 11 Carli R,Ghilardi V.Managing Technological Properties of 2 Kyoden H,Doihara T,Nomura O.Development of Mold Mold Fluxes.Iron Steelmaker,1998,25(6):43 Powders for High Speed Continuous Casting of Steel.In: 12 Sardemann J,Schrewe H.The Influence of Casting Pow- ISS Mold Powders for Continuous Casting and Bottom der on the Formation of Cracks in Continuous Slab Cas- Pouring Teeming.1987.45 ting.In:ISS 74th Steelmaking Conference Proceedings 3 Moore J A,Phillips R J,Gibbs T R.An Overview for the 1991.719 Requirements of Continuous Casting Mold Fluxes.In: 13 Sakai H,Kawashima T,ShiomiT,et al.Crystallization Be- ISS74th Steelmaking Conference Proceedings.1991.615 havior of Molten Fluxes for High-speed Continuous Cas- 4 Mills KC.The Performance of Casting Powders and Their ting of Middle-carbon Steel.In:ISS Proceedings of Mol- Effect on Surface Quality.In:ISS 74th Steelmaking Con- ten Slags,Fluxes and Salts.1997.787 ference Proceedings.1991.121 14 Bhamra M S,Charlesworth M G,Wong S,et al.Crystalli- 5 Emi M.The Mechanisms for Sticking Type Break-outs and zation of Fluxes under Varying Cooling Rates.In:ISS new Developments in Continuous Casting Mold Fluxes. 54th Electric Furnace Conference Proceedings.1996.551 In:ISS 74th Steelmaking Conference Proceedings.1991. Crystallization Temperature of Continuous Casting Mold Fluxes SHU Jun,JIN Shantong,ZHANG Li,CAO Weiwen,SONG Renbo,WANG Xiangguang 1)Metallurgy School,UST Beijing,Beijing 100083,China 2)Zhong Yuan Environment Engineering Ltd,Suzhou 215143,China ABSTRACT The influences of chemical compositions and cooling rate on the crystallization temperature of mold fluxes were studied with WCT-2 DTA.Under the experiment conditions,the crystallization temperature increases with the increase of basicity and then decreases;the crystallization temperature increases with F con- tent,and decreases with the enrichment of Na2O,Al2O,,MgO.Increasing cooling rate,the crystallization tem- perature is reduced slightly. KEY WORDS continuous casting;mold fluxes;crystallization temperature;cooling rate、 b L 2 2 N 0 . 6 舒 俊等 : 连 铸结 晶器 保护 渣结 晶温度 . 5 11 . 3 结 论 ( 1) 碱 度在 1 . 小 1 . 40 的范 围内 , 碱度升 高 , 保 护渣 的结晶温度 先提高后降低 , 在碱 度 1 . 2 附近 出现极大值 . (2 )在 .4 0% 一 12 .0 % 范 围内 , F 一 含量增加 , 保护 渣 结晶温度提 高 . (3 )在基渣 中分别添加 .6 0% 一 12 .0 % 的N 跳 0 , 小8 .0 % 的M g o , 0~2 .0 % 的 A 1 2 0 3 , 随其含 量增加 , 保 护渣 的结晶温度下 降 . (4 )冷却速率在 1 0一 50 ℃ m/ in 的范围 内 , 保护 渣 的结 晶温度 随冷却速 率 的增加 稍稍下 降 . 参 考 文 献 1 Sar 正ar an ar a y a n a n S R, A P e li an D . vE a l u iat on o f M o 1d P o w d e r P e r fo mr an e e v i a C yr s at ll iaZ ti on A n a ly s i s . I n : 15 5 7 5 ht Set e l m由gn C o n fe er cn e Por e e e din g s . 199 2 . 6 0 7 2 K y o d e n H , D 0 ih ar a T, N om aur 0 . D e v e loP m e n t o f M 0 1d P o w d e rS for Hi hg S P e e d C o n tin u o u s C ast l n g o f Set e l . I n : 15 5 M o ld P ow d ser for C o n t UO u o u s C as int g an d B o t o m P o u ir n g eT e m i gn . 1 9 87 . 4 5 3 M o oer J A , P ih ll iP s R J , G ib b s T .R A n C 冲e vr l ew fo r het eR qu ier m e n st o f C o in i nu o u s C as t i n g M o ld F lux e s . nI : I S S7 4 ht Set e ln ak i n g C o n fe r e n c e P r o e e d ign s . 19 9 1 . 6 15 4 诵11 5 K C . hT e P e d 为n n acn e o f C as t in g P o w desr an d Tb e ir E fl 免e t on s 世伪e e Q 明11.yt nI : 15 5 74 ht S et e iln ak i n g C o n - 几r e n c e rP o c e e din g s . 19 9 1 . 12 1 5 E m i M . Th e M e c h an i sm s for ist c k i n g yT P e B r e ak . O u st an d n e 、 v D e ve 1 o Pm e n st in C o n t in u ous C ast in g M 0 1d lF uxe .s nI : 15 5 7 4 ht s姗 lm ak in g C on fe r e n e e P cor e d l n g s . 1 9 9 1 . 6 2 3 6 M c C aul 盯 W L , K o u 1 M K . M o l d P o w d e r eT c hn o l o gy : B o t o m P o u n n g v s . C o n t l n u o u s C as t l n g . I n : 1 5 5 M o ld P ow d e sr for C o n t l n u o u s C ast l n g an d B ot om P o u ir gn eT e - m in g . 1 98 7 . 111 7 N ak at o H , S ak u r a y a T, oN 左水 I,T et a l . Ph y s i e a l an d C h e m i - e al P r o pe rt i e s o f C as ti gn P o dw er s A价 e tin g ht e M o ld L ub ir e iat o n D ur l n g C o n t l n u o u s C as it n g . I n : 15 5 6h9t S et lm ak l n g C on fe er n e e Por e e e d i n g s . 19 86 . 1 37 8 B 0 r n r n ar aj u R . 0 Pt 1m um S e l e ct i o n an d A PPli 。 妓 lon o f M o ld Fl u x e s foy C ar b on Set e l s . ih : 1 5 5 7 4 ht Set e ln ak in g C on fe r e n e e P cor e e din g s . 199 1 . 13 1 9 朱 立光 , 高速连 铸保 护渣 性 能优化 及基 于神 经 网络 的连 铸保 护 渣设计 专 家系 统 的研 究 : 〔博 士学 位 论 文 ] . 北京 : 北京 科技 大学 , 19 97 1 0 C h a v e z J F, oR idr gu e z A , M aor le s 风 et al . L ab o r at o yr an d P l a n t S ot di e s o n hT e mr a 1 P r o P ert i e s o f M 0 1d P o dw esr . nI : 1 5 5 7 8ht S et lm ak l n g C o n fe r e n e e P r co e e d l n g s . 1 9 9 5 . 67 9 11 C alr i R, hG i l别月 1.V M an ag in g eT e ho o 1 o ig e al R or P e rt ie s o f Mo ld Fl xu e s . l r o n & Set e ln ak e几 1 9 9 8 , 2 5 ( 6) : 43 12 SaJ 月e m an J , S c hr e w e H . T五e I n fl u e n e e o f C as t i n g P o 、 v . d e r on ht e F o n n iat on o f C r a c ks in C o n t l n u o u s S lab C as - t in g . nI : 15 5 7 4t h Set e如欧加 9 C o n fe er cn e P r o c e e id n g s . 199 1 . 7 1 9 13 Sak a i凡 K a w as ih m a T, Sh i o m i T, et ia . C yr s at 11i az t 1on B e - h a v i or o f M o l t e n F】xu e s of r Hihg . s P e e d C o nt l n u o u s C as - tl n g o f M id id e 一 e a迁幻 n Set e l . I n : 1 5 5 P ocr e e d l n g s o f M o l - et n 5 1吧 s , F lux e s an d S a l t s . 1 99 7 . 7 8 7 1 4 B h aj m r a M S , C h ar l e s w o rt h M G , Wb gn S , et ia . C yr s t a ll i - 邓t i o n o f F l uxe s u n d e r Va yr ign C o l ign R a t e s . nI : 15 5 5 4 ht E l e e itr e F unr ac e C on fe r e n c e P r o e e e d ign s . 1 9 96 . 5 5 1 C yr s at lli z at i o n eT m P e r a 饥ir e o f C o n t inu o u s C a s t i n g M o l d F lux e s 凡仔U uJ n , ), 刀万 hS an ot gn l), Z月% N G ilL ), CA O 肠iw en )z, , O N G eR nb o)z , 恻刃G j “ a n器u a心 , l ) M e回 l u 理守 S c h o 几U S T B e ij ign , B e ij ing 10 0 0 83 , Ch ina Z ) hZ o n g 、 仙an E n v ~ ent E n g in e e r l n g L t d, S u hz o u 2 1 5 14 3 , hC in a A B S T R A C T Th e I n if u e n e e s o f hc em i e a l e o m P o s it i o n s an d e o o l ing r a t e on t h e c yr sat lliaz t 1on t e m P e r at ur e o f m o ld if ux e s w er s ot d i e d w iht W C T 一 2 D T A . U n d e r ht e e xP e 丘m e nt e o n d it l o n s , 小e e yr s t a lll z at i o n t e m Pe r at ur e 访c r e a s e s w iht ht e in er a s e o f b a s i e iyt an d ht en de er a s e s: 山e c yr sat lll困吐i o n t e m P e r a t 珍e icn r e as e s w iht F e -on et 城 幼 d de e er a s e s w iht ht e e而 e h zl l e in o f N 氏 0 , A 1 2 0 3 , M gO . l n c r e a s ign e o o l ign r a t e , t h e c yr sat lli azt ion et m - P e r a t 理e 1 5 er d u c e d s lihg t l y . K E Y WO R D S e o nt l n u o u s e a s it gn : m o ld fl ux e s ; e yr s alt li z iat on et m P e r a n 理 e ; e o o l ign r at e