轻压下调整对模具钢宽厚板坯中心质量的优化

doi:10.13228/j.boyuan.issn0449-749x.20170252

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Abstract To eliminate the central segregation and porosities in wide and heavy billets of plastic die steel 1.231 1 （450 mm× 2 180 mm），the pin-shooting experiments combined with mathematical simulation by the software of ProCAST have been carried out to measure slab shells’ thickness as well as intuitively display the process of slab solidification and heat transmission. The position of soft reduction facilities were determined according to the center solid fraction of slab in different positions which were directly exported by ProCAST. Then the study of soft reduction was arranged and the industrial experiments were carried out systematically on position，amounts and ratio of soft reduction. The results showed that the position and rate of reduction is significant to macroscopic quality. The internal porosities were effectively eliminated after the position of soft reduction was moved from[fs＝0.30～0.70]to[fs＝0.50～0.85.]The degree of segregation especially the width was reduced remarkably after the reduction rate was raised from 0.8 to 1.4 mm/m .

Received: 22 May 2017 Published: 21 December 2017

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TF777

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	Articles by authors
	LI Mao-Yi
	YANG Shu-Feng
	LI Jing-She
	GAO Wei
	GU Yu
	CHEN Zheng-Yang

Cite this article:

LI Mao-Yi,YANG Shu-Feng,LI Jing-She等. Optimization for internal quality in wide and heavy die billets by soft reduction[J]. Iron and Steel, 2017, 52(12): 36-41.

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http://www.chinamet.cn/Jweb_gt/EN/10.13228/j.boyuan.issn0449-749x.20170252 OR http://www.chinamet.cn/Jweb_gt/EN/Y2017/V52/I12/36

[1]	黄军，何广霞.塑料模具钢厚板硬度不均原因分析及对策[J].特钢技术, 2015, 21(84):24-31
[1]	黄军，何广霞.塑料模具钢厚板硬度不均原因分析及对策[J].特钢技术, 2015, 21(84):24-31
[2]	吴晓春，左鹏鹏.国内外热作模具钢发展现状与趋势[J].模具工业, 2013, 39(10):1-9
[2]	吴晓春，左鹏鹏.国内外热作模具钢发展现状与趋势[J].模具工业, 2013, 39(10):1-9
[3]	许志刚, 王新华, 周力.轻压下参数对连铸板坯半宏观偏析的影响[J].钢铁, 2014, 49(3):36-39
[3]	许志刚, 王新华, 周力.轻压下参数对连铸板坯半宏观偏析的影响[J].钢铁, 2014, 49(3):36-39
[4]	朱苗勇，林启勇.连铸坯的轻压下技术[J].鞍钢技术, 2004, 2004(1):1-5
[4]	朱苗勇，林启勇.连铸坯的轻压下技术[J].鞍钢技术, 2004, 2004(1):1-5
[5]	MC Flemings.Our Understanding of MacrosegregationPast and Present[J].ISIJ international, 2000, 40(9):838-841
[5]	MC Flemings.Our Understanding of MacrosegregationPast and Present[J].ISIJ international, 2000, 40(9):838-841
[6]	JP Birat.Innovation in steel continuous casting : Past, present and future[J].La Revuede Metallurgie- CIT, 1999, 96(11):1389-1399
[6]	JP Birat.Innovation in steel continuous casting : Past, present and future[J].La Revuede Metallurgie- CIT, 1999, 96(11):1389-1399
[7]	王文军，朱志远，李战军.连铸厚板坯轻压下技术的应用[J].钢铁, 2012, 47(3):20-24
[7]	王文军，朱志远，李战军.连铸厚板坯轻压下技术的应用[J].钢铁, 2012, 47(3):20-24
[8]	A Yamanaka, M Okuda.Reduction of centre cavity by forging with liquid core in round billet[J].Ironmaking and Steelmaking, 1999, 26(1):64-68
[8]	A Yamanaka, M Okuda.Reduction of centre cavity by forging with liquid core in round billet[J].Ironmaking and Steelmaking, 1999, 26(1):64-68
[9]	高向宙, 李京社, 杨树峰.宽厚板微观组织优化数值模拟[J].中南大学学报自然科学版, 2015, 46(11):3991-3998
[10]	盛义平，孔祥东，杨永利.连铸结晶器传热边界条件研究[J].中国机械工程, 2007, 18(13):1615-1618
[9]	高向宙, 李京社, 杨树峰.宽厚板微观组织优化数值模拟[J].中南大学学报自然科学版, 2015, 46(11):3991-3998
[11]	张炯明，王立峰，王新华，等.板坯连铸结晶器传热系数[J].金属学报, 2003, 39(12):1281-1284
[10]	盛义平，孔祥东，杨永利.连铸结晶器传热边界条件研究[J].中国机械工程, 2007, 18(13):1615-1618
[12]	王波，陈列，张旭，等.特殊钢连铸大方坯末端电磁搅拌位置研究与应用[J].连铸, 2016, 41(5):17-20
[11]	张炯明，王立峰，王新华，等.板坯连铸结晶器传热系数[J].金属学报, 2003, 39(12):1281-1284
[12]	王波，陈列，张旭，等.特殊钢连铸大方坯末端电磁搅拌位置研究与应用[J].连铸, 2016, 41(5):17-20
[13]	TW Clyne, M Wolf, W Kurz.The effect of melt composition on solidification cracking of steel,with particular reference to continuous casting[J].Metallurgical and Materials Transactions B, 1982, 13(2):259-266
[13]	TW Clyne, M Wolf, W Kurz.The effect of melt composition on solidification cracking of steel,with particular reference to continuous casting[J].Metallurgical and Materials Transactions B, 1982, 13(2):259-266
[14]	Davis G L, Shin Y K.Solidification Technology in the Foundry and Casthouse [J].The Metal Society, 1979, :-
[14]	Davis G L, Shin Y K.Solidification Technology in the Foundry and Casthouse [J].The Metal Society, 1979, :-
[15]	Michihisa I, Kajioka H, et al.An Evaluation of Critical Strain for Internal Crack Formation in Continuously Cast Slabs[J].Transactions ISIJ, 1986, 26(6):540-546
[15]	Michihisa I, Kajioka H, et al.An Evaluation of Critical Strain for Internal Crack Formation in Continuously Cast Slabs[J].Transactions ISIJ, 1986, 26(6):540-546
[16]	Kobayashi S, Tomono H, Gunji K.Mathematical Analysis of Solidification Process with Consideration on Solute Segregation [J].Transactions ISIJ, 1988, 28(3):214-217
[16]	Kobayashi S, Tomono H, Gunji K.Mathematical Analysis of Solidification Process with Consideration on Solute Segregation [J].Transactions ISIJ, 1988, 28(3):214-217
[17]	Yamanak A, Nakajima K, Okamura K.Critical Strain for Internal Crack Formation in Continuous Casting[J].Ironmaking and Steelmaking, 1995, 22(6):508-512
[17]	Yamanak A, Nakajima K, Okamura K.Critical Strain for Internal Crack Formation in Continuous Casting[J].Ironmaking and Steelmaking, 1995, 22(6):508-512
[18]	Kim K, Oh K H, Lee D N.Mechanical Behavior of Carbon Steels during Continuous Cast ing[J].Scripta Materialia, 1996, 34(2):301-307
[18]	Kim K, Oh K H, Lee D N.Mechanical Behavior of Carbon Steels during Continuous Cast ing[J].Scripta Materialia, 1996, 34(2):301-307
[19]	陈素琼, 张家泉, 崔立新, 干勇, 倪满森.板坯凝固末端轻压下实时控制的热-力学分析[J].钢铁研究学报, 2003, 15(2):9-14
[19]	陈素琼, 张家泉, 崔立新, 干勇, 倪满森.板坯凝固末端轻压下实时控制的热-力学分析[J].钢铁研究学报, 2003, 15(2):9-14
[20]	羽翀, 王庆娟, 徐李军, 仇圣桃.轻压下技术在板坯连铸生产中的应用现状[J].钢铁研究学报, 2011, 24(3):1-6
[20]	羽翀, 王庆娟, 徐李军, 仇圣桃.轻压下技术在板坯连铸生产中的应用现状[J].钢铁研究学报, 2011, 24(3):1-6