采用气体分析法、化学分析法、扫描电镜-能谱分析法,对GCr15轴承钢生产过程中的非金属夹杂物进行了研究.工业试验表明,GCr15轴承钢在LF-VD工序夹杂物转变规律为Al2O3→MgO·Al2O3→Al2O3·xCaO·yMgO→MgO·Al2O3或MgO;利用CaO-MgO-Al2O3三元相图对渣系进行优化,适当提高炉渣的wcao/WAl2O3,提高渣中CaO含量,降低渣中w(Feo+Mno)含量,利于实现最终夹杂物向低熔点区(θm≤1 500℃)转变.
参考文献
| [1] | Todoroki H;Inada S .Recent Innovation and Prospect in Production Technology of Specialty Steels With High Cleanliness[J].Bull ISIJ,2003,8:575. |
| [2] | 汤曙光.LF-VD精炼渣组成对冶金效果的影响[J].炼钢,2001(04):29-31,54. |
| [3] | 林功文.钢包炉（LF）精炼用渣的功能和配制[J].特殊钢,2001(06):28-29. |
| [4] | 王新华,陈斌,姜敏,王万军.渣-钢反应对高强度合金结构钢中生成较低熔点非金属夹杂物的影响[J].钢铁,2008(12):28-32. |
| [5] | Wang X H;Wang W J;LI H B.Composition Change of the Non-Metallic Inclusions During the Secondary Refining of the Low Oxygen Alloyed Structural Steels[A].St.Louis,USA:[s.n.],2009:1035. |
| [6] | Itoh H;Hino M;Ban-Ya S .Thermodynamics on the Formation of Spinel Nonmetallic Inclusion in Liquid Steel[J].Metallurgical and Materials Transactions,1997,28B(05):953. |
| [7] | Joo Hyun PARK;Hidekazu TODOROKI .Control of MgO·Al_2O_3 Spinel Inclusions in Stainless Steels[J].ISIJ International,2010(10):1333-1346. |
| [8] | YANG Shu-feng,LI Jing-she,ZHANG Li-feng,Kent Peaslee,WANG Zai-fei.Behavior of MgO·Al2O3 Based Inclusions in Alloy Steel During Refining Process[J].钢铁研究学报（英文版）,2010(07):1-6. |
| [9] | Eugene B. Pretorius;Helmut G. Oltmann;Thomas Cash .The Effective Modification of Spinel Inclusions by Ca Treatment in LCAK Steel[J].Iron & Steel Technology,2010(7):31-44. |
| [10] | Todoroki H;Mizuno K .Effect of silica in slag on inclusion compositions in 304 stainless steel, deoxidized with aluminum[J].ISIJ International,2004(8):1350-1357. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%