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Ni-containing steel slab and method for continuously casting Ni-containing steel

机译：含镍钢坯和连续铸造含镍钢的方法

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摘要

PPROBLEM TO BE SOLVED: To provide an Ni-containing steel slab which has less surface cracks and contains Ni of 7.5 to 10 mass%, and to provide a continuous casting method for casting the Ni-containing steel slab. PSOLUTION: The Ni-containing steel slab contains Ni of 7.5 to 10.0 mass% and is cast by continuous casting, and is characterized in that a solidification nucleus generation density in the surface of the slab is 0.6 pieces/mmSP2/SP. In the continuous casting method for the Ni-containing steel, the casting is performed by adding mold powder whose viscosity at 1,300C is 1.0 Pa s (10 poise) to the inside of a mold or by vibrating a mold at a frequency of 80 cycles per min, thereby controlling the solidification nucleus generation density in the surface of the slab to 0.6 pieces/mmSP2/SP. PCOPYRIGHT: (C)2010,JPO&INPIT

机译：

要解决的问题：提供一种表面裂纹少且Ni含量为7.5〜10质量％的含Ni钢坯，并提供用于铸造该含Ni钢坯的连续铸造方法。

解决方案：含Ni的钢坯包含7.5质量％至10.0质量％的Ni，并且通过连续铸造而铸造，其特征在于，在钢坯表面中的凝固核产生密度为0.6个/ mm。 2 。在含镍钢的连续铸造方法中，通过将在1300℃下粘度为1.0Pa·s（10泊）的铸型粉末添加到模具内部或以80次循环振动模具来进行铸造。每分钟每分钟，从而将铸坯表面的凝固核生成密度控制为0.6个/ mm 2 。

版权：（C）2010，日本特许厅＆INPIT 展开▼

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公开/公告号JP5157598B2

专利类型
公开/公告日2013-03-06

原文格式PDF
申请/专利权人ＪＦＥスチール株式会社;
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申请/专利号JP20080095644
发明设计人真保幸雄;堤康一;羽鳥聡;鈴木伸一;鹿内伸夫;
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申请日2008-04-02
分类号B22D11;B22D11/108;B22D11/16;C22C38;C22C38/08;C22C38/54;C21C7/076;
国家 JP
入库时间 2022-08-21 16:53:23

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