采用电弧炉冶炼→LF炉精炼→VD炉真空精炼→方坯连铸→轧机轧制工艺流程,对Cr-Mn-Ti系齿轮钢添加微量硼进行了对比试验研究。每炉钢水量50～52t,硼的质量分数在0.000 8%～0.001 0%范围内,铸坯规格260mm×300mm,轧制成130mm的圆钢进行对比试验。试验结果表明,保持Cr-Mn-Ti系齿轮钢主体成分基本不变或锰、铬含量适当降低的情况下,添加微量硼元素,可稳定和显著提高其淬透性。
Effect of boron on the properties of Cr-Mn-Ti gear steel produced by the process routing of EAF-LF-VI）- bloom continuous casting rolling was investigated. Tapping weight was 50t to 52 t, the boron content was in the range of 0. 000 8% to 0. 0010 %, billet with size of 260 mm）〈 300 mm was rolled to round steel with 4130 mm for the contrast experiments. The experimental results show that the hardenability of Cr-Mn-Ti gear steel added trace boron is improved when main components of steel is kept unchanged, or the content of Mn, Cr is decreased befittingly.
参考文献
| [1] | 马鸣图.先进汽车用钢[M].北京:化学工业出版社,2007 |
| [2] | 守屋昭彦.硼钢的特性[J].冶金译丛,1993(03):53. |
| [3] | 张继魁,张爱军,辛莹,董伦,郭光荣,吕仁旭.汽车渗碳齿轮钢在重型汽车上的应用现状[J].重型汽车,2009(02):32-34. |
| [4] | 郑昌顺.国内外齿轮用渗碳钢的现状及发展概况[J].传动技术,1991(02):33. |
| [5] | 康显澄.试论硼在钢中的作用[J].特钢通讯,1990(04):1. |
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