| 利用转炉烟尘铁粒制造粉末冶金用铁粉 |
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| 引用本文： | 曹顺华,曲选辉,方民宪.利用转炉烟尘铁粒制造粉末冶金用铁粉[J].粉末冶金技术,2002,20(4):223-227. |
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| 作者姓名： | 曹顺华 曲选辉 方民宪 |
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| 作者单位： | 1. 中南大学粉末冶金国家重点实验室,长沙,410083
2. 攀枝花钢铁公司钢铁研究院综合室,攀枝花,617000 |
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| 摘 要： | 转炉在吹炼过程中形成的铁粒，经过表面除杂和表面粗糙化处理后，其化学成分和粉末工艺性能符合粉末冶金用铁粉的要求。研究发现，铁粉松装密度由原始的3.82g/cm^3可降低到2.72g/cm^3。当铁粉松装密度为2.72g/cm^3时，粉末流速为29.3s/50g。该粉末在压力为420MPa的条件下压制，压坯密度达6.68g/cm^3，压坯强度高达12.68MPa，比具有相近松装密度的还原铁粉在相同压制条件制的压坯强度提高40％。铁粉的应用试验结果表明，该铁粉的压制和烧结性能良好。改性后的转炉烟尘铁粉可作为粉末冶金用铁粉新的制造原料。
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| 关 键 词： | 粉末冶金 铁粉 转炉烟尘铁粒 表面改性 压制行为 烧结行为 |
| 修稿时间： | 2001年4月20日 |
Fabricating Iron Powder for Powder Metallurgical from Iron Particles of Rotary Furnace Soot |
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| Cao Shunhua,Qu Xuanhui.Fabricating Iron Powder for Powder Metallurgical from Iron Particles of Rotary Furnace Soot[J].Powder Metallurgy Technology,2002,20(4):223-227. |
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| Authors: | Cao Shunhua Qu Xuanhui |
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| Abstract: | The Chemical and processing properties of the iron powder, formed during steel refining by oxygen blasting, can meet requirements of powder metallurgical applications after particle surface modification. It is found that the apparent density of the iron powder can be reduced to 2 72g/cm 3 from its original density of 3 82g/cm 3 The flow rate is 29 3s/50g as its apparent density is 2 72g/cm 3, and its compressibility and green strength are 6 68g/cm 3 and 12 68MPa respectively as compacted at 412MPa The application tests show that the iron powder particles after surface modification treatment can be used as a new iron powder source for powder metallurgical applications at relative low cost |
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| Keywords: | iron particle from rotary furnace soot surface modification compactability sintering behavior |
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