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首页> 外文会议>Annual Meeting Exhibition of The Minerals, Metals Materials Society >Sub-rapid Solidification Study of Silicon Steel by Using Dip Test Technique
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Sub-rapid Solidification Study of Silicon Steel by Using Dip Test Technique

机译：用DIP试验技术进行硅钢的副快速凝固研究

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Dip test technique has been used for the study of sub-rapid solidification (cooling rate ranges from 100 °C/s up to 1000 °C/s) of molten steel to effectively simulate the thermophysical phenomena during strip casting process due to its convenient and online observation advantages. In this study, a 6.5 wt% Si electric steel strip was produced by an improved dip test apparatus, which has been developed for the research of interfacial heat transfer and microstructure of strip casting steels. The heat transfer rates were calculated by the inverse heat conduction program (IHCP). The analysis of solidification microstructure and second phase precipitation was also carried out by scanning electron microscope (SEM) and transmission electron microscope (TEM). The results showed that the maximum heat flux could be up to 8.2 MW/m~2, and only a very small amount of MnS (0.5 (xm) and A1N (2 μm) precipitates were found in the as-cast strip while nano-size MnS (-50 nm) and TiN (50-200 nm) precipitates were observed with subsequent heat treatment, after which the magnetic properties were also significantly improved.
机译：浸渍试验技术已被用于研究钢水钢的水快速凝固（冷却速度范围，高达1000°C / s），以有效地模拟带材铸造过程中的热神族现象，因为它的方便和在线观察优势。在该研究中，通过改进的DIP试验装置生产了6.5wt％Si电钢带，该浸渍试验装置已经开发用于界面传热和条带铸钢的微观结构的研究。通过逆热传导程序（IHCP）计算传热速率。还通过扫描电子显微镜（SEM）和透射电子显微镜（TEM）进行凝固微观结构和第二相沉淀的分析。结果表明，最大热通量可达8.2mW / m〜2，并且在纳米 - 纳米时，仅在铸造条中发现非常少量的MNS（0.5（XM）和A1N（2μm）沉淀物随后的热处理观察到尺寸MNS（-50nm）和锡（50-200nm）沉淀物，之后还显着改善了磁性。

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