| BN型易切削钢的冶炼工艺及其切削加工性 |
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| 作者姓名： | 王毓男 包燕平 王敏 张乐辰 |
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| 作者单位： | 1. 北京科技大学钢铁冶金新技术国家重点实验室, 北京 100083; |
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| 摘 要： | 对BN型易切削钢的冶炼工艺与切削加工性进行了研究.通过实验室热态实验得到不同B、N元素含量的试样,利用理论计算研究试样中主要夹杂物的析出规律,然后对BN夹杂物的形貌、尺寸及组成进行分析,最后对试样进行力学性能测试及切削实验.结果发现在钢中添加B、N元素能够明显改善钢的切削性能,且不影响钢的力学性能.
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| 关 键 词： | 易切削钢 炼钢 切削加工性 氮化硼 夹杂物 |
| 收稿时间： | 2012-07-05 |
Smelting process and machinability of BN-type free cutting steel |
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| Affiliation: | 1. State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing 100083, China;2. School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China |
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| Abstract: | This article studied the smelting process and machinability of BN-type free cutting steel. Samples with different B and N contents were prepared by cold crucible induction melting. The precipitation of main inclusions in sample was investigated by theoretical calculation. After that, the morphology, size and composition of BN type inclusions were analyzed. The mechanical test and machining test of the samples were carried out. It is found that adding B and N elements into steel can improve the machinability of the steel, but do not affect the mechanical properties. |
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