转炉-炉外精炼-连铸生产的含硫非调质易切削高强度钢的切削性能
Machinability of S-bearing Non-quenched-tempered Free-machining High Strength Steel Manufactured by Converter-refining-continuous Casting
摘 要
对转炉-炉外精炼-连铸生产的含硫非调质易切削高强度钢的切削性能进行了研究,用扫描电镜对钢中夹杂物以及切削性能提高的原因进行了分析.结果表明：纺锤形MnS及其以Al2O3、SiO2为核心的MnS复合型夹杂物是材料切削性能获得提高的主要原因.
复合型夹杂物
切削性能
non-quenched-tempered free-machining steel
compound type inclusions
machinability
Abstract
The machinability of S-bearing non-quenched-tempered free-machining steel manufactured by converter-refining-continuous casting was investigated.The inclusions in steel was analyzed by using SEM,The reason of improving machinability was discussed.It shows that the spindly MnS and its compound type inclusions with nucleus of Al2O3,SiO2 may improve machinability of materials.
中图分类号 TG142.41
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收稿日期 2005/10/18
修改稿日期 2006/3/20
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备注常开地(1965-),男,黑龙江绥化人,高级工程师,博士.
引用该论文: CHANG Kai-di,ZHAO Huan-chun,ZHANG Hui-feng,WANG Jian,ZHU Yin-xiang. Machinability of S-bearing Non-quenched-tempered Free-machining High Strength Steel Manufactured by Converter-refining-continuous Casting[J]. Materials for mechancial engineering, 2006, 30(11): 36～38
常开地,赵焕春,张慧峰,王坚,朱殷祥. 转炉-炉外精炼-连铸生产的含硫非调质易切削高强度钢的切削性能[J]. 机械工程材料, 2006, 30(11): 36～38
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参考文献
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【3】李联生,朱 荣,孙彦辉,等.易切削钢中夹杂物及锡的形态[J].北京科技大学学报,2004,26(5):471-473.
【4】江来珠,崔 崑.易切削钢中Ca-Al-O-Mn-S系氧硫化物变性的热力学计算[J].钢铁研究学报,1991,3(2):57-61.
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【6】付长令.易切削钢的发展方向(上)[J].本钢译丛,1989,(1):15-19.
【7】祖荣祥.易切削钢研究和应用的发展[J].国外低合金钢,1989,(1):16-22.
【8】娄德春,崔 崑,吴晓春,等.硫复合系易切钢中夹杂物与易切削机理的研究[J].机械工程材料,1996,20(5):27-30.
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