| Q235B中厚板表面孔洞缺陷分析 |
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| 引用本文： | 刘志勇,孟根巴根,王丽云,宋苓芝,尹绍江.Q235B中厚板表面孔洞缺陷分析[J].河北冶金,2012(7):56-58. |
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| 作者姓名： | 刘志勇 孟根巴根 王丽云 宋苓芝 尹绍江 |
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| 作者单位： | 1. 河北钢铁集团唐钢公司技术中心,河北唐山,063016
2. 河北钢铁集团唐钢中厚板材有限公司,河北唐山,063000 |
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| 摘 要： | 利用光学显微镜、扫描电镜分析了Q235B中厚板的表面孔洞缺陷,认为该缺陷是皮下气泡,孔洞周围有较大的夹杂物。Q235B中厚板表面产生皮下气泡的原因是氩气流量不合理,通过调整结晶器流场、降低氩气流量,Q235B中厚板的孔洞缺陷大幅降低,产品质量明显提高。
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| 关 键 词： | 中厚板 表面 孔洞 缺陷 分析 |
ANALYSIS ABOUT SURFACE HOLES DEFECT ON Q235B PLATE |
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| Liu Zhiyong
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Mengen Bagen
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Wang Liyun
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Song Lingzhi
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Yin Shaojiang.ANALYSIS ABOUT SURFACE HOLES DEFECT ON Q235B PLATE[J].Hebei Metallurgy,2012(7):56-58. |
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| Authors: | Liu Zhiyong Mengen Bagen Wang Liyun Song Lingzhi Yin Shaojiang |
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| Affiliation: | 1(1.Technique Center,Tangshan Iron and Steel Company,Hebei Iron and Steel Group,Tangshan,Hebei,063016;2.Plate Co.,Ltd.,Tangshan Iron and Steel Company,Hebei Iron and Steel Group,Tangshan,Hebei,063016) |
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| Abstract: | The surface holes on Q235B plate are analyzed with optical microscope and scanning electron microacope.It is considered those are air bubbles under surface with much inclusion around.The reason to cause it is unreasonable flow amount of argon.With adjusting mold flow field to reduce argon flow amount,the holes reduced to a large extent,product quality rather improved. |
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| Keywords: | plate surface hole defect analysis |
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