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公开(公告)号：US11890671B2
公开(公告)日：2024-02-06
申请号：US17422674
申请日：2020-02-06
发明人： Ryosuke Masuda , Yoshinari Hashimoto , Akitoshi Matsui , Shugo Morita , Tatsuro Hayashida , Taiga Koriyama , Ryo Morishita
IPC分类号： B22D11/18 , B22D11/115 , G05B15/02
CPC分类号： B22D11/18 , B22D11/115 , G05B15/02
摘要： A control method for a continuous casting machine, includes: estimating, by on-line real-time system, a flow state of molten steel in a mold by using an operation condition of a continuous casting machine and temperature data on the molten steel in the mold; calculating, by on-line real-time system, a molten steel flow index based on the estimated flow state of the molten steel, the molten steel flow index being a factor of mixing of an impurity into a casting inside the mold; and controlling the operation condition of the continuous casting machine such that the calculated molten steel flow index is within an appropriate range.
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公开(公告)号：US11648607B2
公开(公告)日：2023-05-16
申请号：US17436199
申请日：2020-02-28
发明人： Akitoshi Matsui , Shugo Morita , Tatsuro Hayashida , Yoshinari Hashimoto , Ryosuke Masuda , Taiga Koriyama , Ryo Morishita
IPC分类号： B22D11/20 , B22D11/115
CPC分类号： B22D11/20 , B22D11/115
摘要： A continuously casting method including arranging temperature measuring elements according to specified conditions, selecting as evaluation targets for temperatures of copper plates on a wide face of mold values measured by the temperature measuring elements arranged closer to a center in a width direction of a cast slab than short sides of the cast slab under continuous casting at levels of 50 mm or more lower in a slab withdrawal direction than a meniscus of a molten steel in a mold, and adjusting a casting condition such that a standard deviation of the values measured over the width direction of the copper plates on the wide face of mold at a same level in the slab withdrawal direction is 20° C. or lower.
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公开(公告)号：US11925974B2
公开(公告)日：2024-03-12
申请号：US18009909
申请日：2021-04-09
发明人： Ryosuke Masuda , Yoshinari Hashimoto , Akitoshi Matsui , Shugo Morita , Tatsuro Hayashida , Taiga Koriyama , Takehide Hirata
CPC分类号： B22D11/182 , B22D2/00 , B22D11/04
摘要： A breakout prediction method includes: a step of inputting a dimension of a solid product withdrawn from a mold in a continuous casting machine; a step of detecting a temperature of the mold by a plurality of thermometers embedded in the mold; a step of executing interpolation processing on the detected temperatures detected by the plurality of thermometers according to the dimension of the solid product; a step of calculating, based on the temperatures calculated by executing the interpolation processing, a component in a direction orthogonal to an influence coefficient vector obtained by principal component analysis as a degree of deviation from during a normal operation in which a breakout has not occurred; and a step of predicting a breakout based on the degree of deviation.
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公开(公告)号：US11724307B2
公开(公告)日：2023-08-15
申请号：US17440150
申请日：2020-03-03
发明人： Ryosuke Masuda , Yoshinari Hashimoto , Akitoshi Matsui , Shugo Morita , Tatsuro Hayashida , Taiga Koriyama
IPC分类号： B22D11/18
CPC分类号： B22D11/188 , B22D11/182
摘要： A device includes: an input device configured to receive an input of measurement results of a temperature and components of molten steel in a tundish of continuous casting facilities, measurement results of a width, a thickness, and a casting speed of a cast slab casted in the continuous casting facilities, and molten steel flow rate distribution in a mold; a model database configured to store a model expression and a parameter related to solidification reaction of molten steel in the mold; a convertor configured to convert a molten steel flow rate in the mold into a heat conductivity parameter; and a calculator configured to estimate a solidified shell thickness in the mold based on temperature distribution of the mold and steel in the mold calculated by solving a three-dimensional transient heat conduction equation using the measurement results.
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