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1. 发明申请

US20110094703A1 METHOD OF CONTINUOUS CASTING OF HIGH-ALUMINUM STEEL AND MOLD POWDER 有权
标题翻译：连续铸造高铝钢和模铸粉的方法
公开(公告)号：US20110094703A1
公开(公告)日：2011-04-28
申请号：US12297984
申请日：2007-04-23
申请人： Takashi Miyake , Hitoshi Nakata , Tsuyoshi Mimura , Tomoaki Omoto , Yukimasa Iwamoto
发明人： Takashi Miyake , Hitoshi Nakata , Tsuyoshi Mimura , Tomoaki Omoto , Yukimasa Iwamoto
IPC分类号： B22D27/02 , B22D11/04 , C21C7/076
CPC分类号： B22D11/111 , B22D11/16
摘要： The invention provides a method of continuous casting for producing a slab excellent in surface quality by preventing formation of depressions and occurrence of cracking of a slab even in the case of producing a high Al steel having an Al content of 0.1% or more by continuous casting. At the time of continuous casting of a high-Al molten steel containing prescribed chemical components by using a mold powder, a powder containing T—CaO: 35 to 55%, SiO2: 10 to 30%, Al2O3: 4.0% or less (excluding 0%), MgO: 0.2 to 1.0%, Li2O: 7 to 13%, F: 7 to 13%, C: 10.5 to 14%, and inevitable impurities and satisfying 1.6≦[T—CaO]/[SiO2]≦5 and 0.2≦[Li2O]/[SiO2]≦1.1 is used as the mold powder, and operation is carried out while controlling the conditions such as the molten steel surface level fluctuation speed in the mold; the pouring angle of the molten steel in the width direction of the mold; the stroke in the amplitude; and the negative strip time tN defined by a prescribed relational expression.
摘要翻译：本发明提供了一种连续铸造方法，即使在通过连续铸造生产Al含量为0.1％以上的高Al钢的情况下，也可以防止形成凹陷并发生板坯裂纹，从而制造表面质量优异的板坯。在通过使用模具粉末连续铸造含有规定化学成分的高铝钢水时，含有T-CaO的粉末：35〜55％，SiO 2：10〜30％，Al 2 O 3：4.0％以下（不包括 0％），MgO：0.2〜1.0％，Li 2 O：7〜13％，F：7〜13％，C：10.5〜14％，不可避免的杂质，满足1.6＆nlE; [T-CaO] / [SiO2] ; 5和0.2＆nlE; [Li 2 O] / [SiO 2]＆nlE; 1.1用作模具粉末，并且在控制模具中的钢水表面水平波动速度等条件的同时进行操作; 钢水在模具的宽度方向上的倾倒角度; 中风的振幅; 以及由规定的关系表达式定义的负条带时间t N。

2. 发明申请

US20070009373A1 Mold powder for continuous casting of steel 审中-公开
标题翻译：模具粉末用于连续铸钢
公开(公告)号：US20070009373A1
公开(公告)日：2007-01-11
申请号：US10572959
申请日：2004-09-30
申请人： Tomoaki Omoto , Yukimasa Iwamoto
发明人： Tomoaki Omoto , Yukimasa Iwamoto
IPC分类号： B22F1/02 , C21B13/00
CPC分类号： B22D11/111 , C21C7/076 , Y02P10/242
摘要： A powdered molding powder for continuous casting of steel according to the present invention is characterized in that the powder contains less than 0.5 percent by mass (including zero) of carbon black, from 0.5 to 20 percent by mass of carbon powders other than carbon black and from 0.1 to 7.0 percent by mass of carbohydrate powder as a carbonaceous raw material.
摘要翻译：根据本发明的用于连续铸造钢的粉末成型粉末的特征在于，粉末含有小于0.5质量％（包括零）的炭黑，0.5至20质量％的碳黑以外的碳粉，以及 0.1〜7.0质量％的作为碳质原料的碳水化合物粉末。

3. 发明授权

US08146649B2 Method of continuous casting of high-aluminum steel and mold powder 有权
标题翻译：连续铸造高铝钢和模具粉末的方法
公开(公告)号：US08146649B2
公开(公告)日：2012-04-03
申请号：US12297984
申请日：2007-04-23
申请人： Takashi Miyake , Hitoshi Nakata , Tsuyoshi Mimura , Tomoaki Omoto , Yukimasa Iwamoto
发明人： Takashi Miyake , Hitoshi Nakata , Tsuyoshi Mimura , Tomoaki Omoto , Yukimasa Iwamoto
IPC分类号： B22D27/02 , B22D11/04
CPC分类号： B22D11/111 , B22D11/16
摘要： A method of continuously casting molten steel to produce high surface quality slab by preventing depressions and cracking. The steel is high Al steel having an Al content of 0.1% or more. High-Al molten steel is continuously cast using mold powder containing T—CaO (T—CaO presumes total Ca converted to CaO): 35 to 55%, SiO2: 10 to 30%, Al2O3: 4.0% or less (excluding 0%), MgO: 0.2 to 1.0%, Li2O: 7 to 13%, F: 7 to 13%, C: 10.5 to 14%, and inevitable impurities; and satisfying: 1.6≦[T—CaO]/[SiO2]≦5 and 0.2≦[Li2O]/[SiO2]≦1.1. The method is performed by controlling the molten steel surface level fluctuation speed in the mold; the pouring angle of the molten steel in the width direction of the mold; the stroke in the amplitude; and the negative strip time tN as defined.
摘要翻译：通过防止凹陷和开裂连续铸造钢水以产生高表面质量的板坯的方法。该钢是Al含量为0.1％以上的高Al钢。使用含有T-CaO（T-CaO的总Ca转化为CaO）的模具粉末连续铸造高Al钢水：35〜55％，SiO 2：10〜30％，Al 2 O 3：4.0％以下（不含0％），MgO：0.2〜1.0％，Li 2 O：7〜13％，F：7〜13％，C：10.5〜14％，不可避免的杂质; 并满足：1.6＆nlE; [T-CaO] / [SiO2]＆nlE; 5和0.2＆nlE; [Li2O] / [SiO2] 该方法通过控制模具中的钢水表面水平波动速度来进行; 钢水在模具的宽度方向上的倾倒角度; 中风的振幅; 和定义的负剥离时间tN。

4. 发明授权

US06461402B1 Molding powder for continuous casting of steel and method for continuous casting of steel 有权
标题翻译：钢连续铸造用粉末及连续铸钢方法
公开(公告)号：US06461402B1
公开(公告)日：2002-10-08
申请号：US09601323
申请日：2000-08-07
申请人： Akihiro Morita , Tomoaki Omoto , Yukimasa Iwamoto
发明人： Akihiro Morita , Tomoaki Omoto , Yukimasa Iwamoto
IPC分类号： C21C7076
CPC分类号： B22D11/111
摘要： An object of the present invention is to provide a mold powder for continuous casting of steel whose fluorine content is small, and which enables stable casting, for reducing the corrosion of continuous casting equipment and decreasing the concentration of fluorine in the waste water, well as a method for continuous casting of steel using mold powder. The mold powder for continuous casting of steel of the present invention is characterized by having a chemical composition including 25 to 70 wt % of SiO2, 10 to 50 wt % of CaO, not more than 20 wt % of MgO, and 0 to 2 wt % of F as an unavoidable impurity, where the viscosity of the molten mold powder is not less than 4 poise at 1,300° C.
摘要翻译：本发明的目的在于提供一种氟含量少的钢的连续铸造用铸型粉末，能够稳定地铸造，以减少连续铸造设备的腐蚀和降低废水中氟的浓度，以及使用模具粉末连续铸钢的方法。本发明的钢的连续铸造用铸型粉末的特征在于，具有25〜70重量％的SiO 2，10〜50重量％的CaO，20重量％以下的MgO和0〜2重量％ F为不可避免的杂质的％，其中熔融模具粉末的粘度在1,300℃不低于4泊

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