Model for Changing of MnO Content in Mold Flux during Concasting

王新月; 金山同; 苍大强

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Model for Changing of MnO Content in Mold Flux during Concasting

更新时间：2026-01-21

- Model for Changing of MnO Content in Mold Flux during Concasting
- Special Steel Vol. 27, Issue 6, Pages: 15-17(2006)
- 作者机构：
  
  北京科技大学冶金与生态工程学院,北京,100083
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：24 April 2006，
  
  Online First：01 March 2023，
  
  Published：01 March 2006
- 稿件说明：
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王新月, 金山同, 苍大强. Model for Changing of MnO Content in Mold Flux during Concasting[J]. Special Steel, 2006, 27(6): 15-17.
DOI：

王新月, 金山同, 苍大强. Model for Changing of MnO Content in Mold Flux during Concasting[J]. Special Steel, 2006, 27(6): 15-17. DOI：

摘要

根据建立的MnO含量变化模型得出

增大反应的表观速率常数k、渣-钢界面面积和反应时间

则保护渣中MnO含量增加。保护渣中MnO初始含量和初始[Mn]亦影响保护渣中MnO含量的变化。实验表明

16Mn钢Φ300mm坯连铸过程保护渣中初始MnO含量为1.5%

30min后提高到2.2%;Q235钢板坯连铸时

保护渣初始(MnO)量从0%提高到2.51%时

保护渣的熔化温度由1069℃降到1063℃

1300℃粘度由0.165Pa.s降至0.142Pa.s。

Abstract

Based on established a model for changing of MnO content

it was obtained that with increasing apparent rate constant k

flux-steel interfacial area and reacting time

the MnO content in flux increased. The initial (MnO) and initial [Mn] influenced MnO content in flux. The test results showed that during steel 16Mn 4)300 mm billet concasting

the initial MnO content in flux was 1. 5%

after casting for 30 min it increased to 2. 2% ； and during steel Q235 slab casting

as initial (MnO) in flux increased from 0% to 2. 51%

the melting temperature of flux decreased from 1 069 Y to 1 063 ℃

of which the viscosity at 1 300 ℃ decreased from 0. 165 Pa

s to 0. 142 Pa • s.

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