对GCr15钢进行了氧含量分析、夹杂物评级和电子探针观察，研究了喂钙-硅线对铝脱氧并真空脱气后钢中氧含量及夹杂物的影响。结果表明：铝脱氧的GCr15钢经LF和VD炉真空脱气（精炼）后再喂钙-硅线，其氧含量和D类点状夹杂物级别与未喂钙一硅线的相比没有明显的差别；为解决连铸水口堵塞问题可喂钙一硅线；GCr15钢采用CaO-SiO2-Al2O3渣系精炼，可形成粒状铝酸钙夹杂物，其外表面常常吸附一层CaS。
The effect of Ca-Si wire feeding on oxygen content and inclusion in Al-deoxidized and vacuum degassed CX2rl5 steel was investigated by oxygen content analysis, inclusions rating and electron probe observation. The results show that there was no further effect on oxygen content and D-type inclusion between Al-deoxidized and vacuum degassed GCr15 steel with Ca-Si wire feeding after LF and VD secondary refining and Al-deoxidized GCrl5 steel without Ca-Si wire feeding. The problem o{ nozzle clogging during continuous casting could be solved by feeding Ca-Si wire. Granular calcium-aluminates wrapped by a layer of calcium sulfide were formed in GCr15 steel treated by refining slag of CaO-SiO2-Al2O3.
参考文献
| [1] | 杨建虹,雷建中,叶健熠,仇亚军,李丽霞.轴承钢洁净度对轴承疲劳寿命的影响[J].轴承,2001(05):28-30. |
| [2] | 李成斌,姜周华,梁连科,李阳.钢水精炼喂Ca-Si线技术的研究和应用[J].材料与冶金学报,2002(02):87-90. |
| [3] | 韩志军,林平,刘浏,崔京玉,周德光.20CrMnTiH1齿轮钢钙处理热力学[J].钢铁,2007(09):32-36. |
| [4] | 高振波,梁海庆,吴坚,胡义贵,李颂,杜松林.钙处理工艺对低碳冷镦钢洁净度的影响[J].北京科技大学学报,2007(08):785-788. |
| [5] | 徐世铮,马晓禾,赵卫东.轴承钢点状夹杂物成因及消除机理的探讨[J].材料与冶金学报,2006(04):250-252. |
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