| 28MnCr5冶炼过程钢中夹杂物的变化情况研究 |
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| 引用本文： | 郑艳,刘兆武,梁娜,卢乃双,张利平. 28MnCr5冶炼过程钢中夹杂物的变化情况研究[J]. 河南冶金, 2012, 20(3): 9-12 |
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| 作者姓名： | 郑艳 刘兆武 梁娜 卢乃双 张利平 |
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| 作者单位： | 山东钢铁股份有限公司 |
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| 摘 要： | 通过SEM、EDS和大样电解试验对28MnCr5冶炼过程中夹杂物的大小、形貌、数量进行了分析。结果表明：LF精炼后夹杂物多为钙镁铝氧化物及硫化钙夹杂,夹杂物的尺寸较小,多为1μm～3μm,形状为方形。经VD处理后,较LF阶段夹杂物尺寸增大,夹杂物的组成多是钙镁铝尖晶石类及MnS夹杂。连铸过程中夹杂物的成分主要为MgO-Al2O3-MnS-MnO系夹杂物,夹杂物多呈圆形,其尺寸在3μm～6μm。通过大样电解发现大部分大型夹杂物都是多元复合夹杂物,颗粒粒径多在100μm以上,对钢材性能影响极大。
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| 关 键 词： | 28MnCr5 冶炼过程 夹杂物 大样电解 |
STUDY ON INCLUSIONS BEHAVIOR IN 28MNCR5 SMELTING PROCESS |
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| Zheng Yan , Liu Zhaowu , Liang Na , Lu Naishuang , Zhang Liping. STUDY ON INCLUSIONS BEHAVIOR IN 28MNCR5 SMELTING PROCESS[J]. Henan Metallurgy, 2012, 20(3): 9-12 |
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| Authors: | Zheng Yan Liu Zhaowu Liang Na Lu Naishuang Zhang Liping |
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| Affiliation: | Zheng Yan Liu Zhaowu Liang Na Lu Naishuang Zhang Liping(Shandong Iron and Steel Co.,Ltd) |
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| Abstract: | The size、morphology and amount of inclusions in 28MnCr5 smelting process were analyzed by SEM、EDS and sample electrolysis methods.The results indicated that the main inclusions after LF refining were square CaO-Mgo-Al2O3 and CaS ranging from 1μm to 3μm.The main inclusions were CaO-Mgo-Al2O3-MnO-CaS and MnS during VD period which were larger than the former.The main inclusions were round MgO-Al2O3-MnS-MnO ranging from 3μm to 6μm during casting period.Most large inclusions in steel were multielements through sample electrolysis and their sizes were above 100 μm which greatly affect steel performance. |
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| Keywords: | 28MnCr5 smelting process inclusion sample electrolysis |
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