Effect of Slag Ingredient on Melting Point of CaO-SiO2 -Al2O3 -MgO Refining Slag Series for Gear Steel 28MnCr5 Steelmaking

梁娜; 吴德发; 翟正龙; 张利平

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Effect of Slag Ingredient on Melting Point of CaO-SiO2 -Al2O3 -MgO Refining Slag Series for Gear Steel 28MnCr5 Steelmaking

更新时间：2026-01-21

- Effect of Slag Ingredient on Melting Point of CaO-SiO2 -Al2O3 -MgO Refining Slag Series for Gear Steel 28MnCr5 Steelmaking
- Special Steel Vol. 33, Issue 4, Pages: 10-12(2012)
- 作者机构：
  
  1. 莱芜钢铁集团有限公司1特钢事业部
  2. 宽厚板厂,莱芜,271104
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：13 January 2012，
  
  Online First：13 October 2022，
  
  Published：13 October 2012
- 稿件说明：
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梁娜, 吴德发, 翟正龙, et al. Effect of Slag Ingredient on Melting Point of CaO-SiO2 -Al2O3 -MgO Refining Slag Series for Gear Steel 28MnCr5 Steelmaking[J]. Special Steel, 2012, 33(4): 10-12.
DOI：

梁娜, 吴德发, 翟正龙, et al. Effect of Slag Ingredient on Melting Point of CaO-SiO2 -Al2O3 -MgO Refining Slag Series for Gear Steel 28MnCr5 Steelmaking[J]. Special Steel, 2012, 33(4): 10-12. DOI：

摘要

以28MnCr5齿轮钢(/%:0.28C、0.09Si、0.70Mn、0.015P、0.027S、0.95Cr)50 t电弧炉-LF-VD的生产过程为对象

利用热力学计算软件FactSage

研究CaO-SiO

-Al

-MgO精炼渣系中不同成分比例对其熔点的影响

找出最佳的比例使夹杂物控制在低熔点区域

以便于去除。结果表明

(CaO)/(SiO

1时

低熔点区域占总相图面积的百分比较大;当CaO含量为30%时

低熔点区域占总相图面积的百分比达到所有的最大值

为53.2%;4组元最佳配比为(%)30CaO-30SiO

-25Al

-15MgO。

Abstract

Based on the process of 50 t EAF-LF-VD for gear steel 28MnCr5 (/% : 0. 28C

0. 09Si

0. 70Mn

0. 015P

0. 027S

0. 95Cr)

the effect of proportion of each ingredient in slag on melting point of CaO-SiO

-Al

-MgO refining slag series has been studied by using thermodynamic calculation software FactSage

to get optimum proportion of ingredients in order to control the inclusions in low melting point region and remove out. Results show that as (CaO) / ( SiO

) W 1

the percentage of low melting point region to whole phase diagram area is larger and as CaO content in slag ( CaO) is 30%

the percentage of low melting point region to whole phase diagram area is maximum i. e. 53. 2% ； the op

timum ingredient of quaternary refining slag series is (/%) 30CaO-30SiO2-25Al

-15MgO.

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