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1. 发明专利

JP2014037000A Method for manufacturing continuous cast slab 有权
标题翻译：制造连续铸造砖的方法
公开(公告)号：JP2014037000A
公开(公告)日：2014-02-27
申请号：JP2012181919
申请日：2012-08-20
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： SHIMAMOTO HIROYUKI , MIZUNO HIROSHI , MAEDA HIROSHI , ASANO KAZUYA , TSUTSUMI KOICHI , ARAMAKI NORICHIKA
IPC分类号： B22D11/20 , B22D11/124 , B22D11/128 , B22D11/16
摘要： PROBLEM TO BE SOLVED: To control casting conditions on the basis of a result obtained by accurately estimating a final solidification position and a final solidification shape in continuous casting.SOLUTION: A solidification state of the cast slab in continuous casting is estimated by a heat transmission model using a heat flux based on a cooling condition of at least secondary cooling. Temperature distribution in a width direction of the slab is measured by a thermometer 4 at a preset measurement position in a longitudinal direction of the slab, which is a pulling-out direction of the slab. Heat flux distribution in the width direction of the slab of the heat flux is corrected so that an estimated temperature at the measurement position estimated by the heat transmission model and the temperature distribution in the width direction of the slab measured by temperature distribution measurement means coincide. The center segregation of the slab is reduced by changing the amount of light rolling reduction in a light rolling-reduction zone from a predetermined amount of light rolling reduction on the basis of the estimated final solidification shape and controlling a difference between a shortest final solidification position and a longest final solidification position in a casting direction to be within a reference range.
摘要翻译：要解决的问题：基于通过精确估计连续铸造中的最终凝固位置和最终凝固形状获得的结果来控制铸造条件。解决方案：连铸中的铸坯的凝固状态通过热传递使用基于至少二次冷却的冷却条件的热通量的模型。在板坯的宽度方向上的温度分布通过温度计4在板坯的长度方向上的预先设定的测量位置测量，该板坯是板坯的拉出方向。校正热通量板坯宽度方向的热通量分布，由温度分布测定装置测定的热传递模型估计的测量位置的估计温度和板坯宽度方向的温度分布一致。基于估计的最终凝固形状，通过将预定量的轻压缩还原区域在轻压轧区域中的轻压轧减少量的变化量减少，并且控制最终最终凝固位置并且在铸造方向上的最长的最终凝固位置在参考范围内。

2. 发明专利

JP2014036997A Method for evaluating quality of continuous cast slab 有权
标题翻译：评价连续铸件质量的方法
公开(公告)号：JP2014036997A
公开(公告)日：2014-02-27
申请号：JP2012181916
申请日：2012-08-20
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： SHIMAMOTO HIROYUKI , MIZUNO HIROSHI , MAEDA HIROSHI , ASANO KAZUYA , TSUTSUMI KOICHI , ARAMAKI NORICHIKA
IPC分类号： B22D11/16 , B22D46/00
摘要： PROBLEM TO BE SOLVED: To accurately determine on-line the degree of center segregation varying with a final solidification shape spatially and temporally in the width direction of a continuous cast slab during casting.SOLUTION: A solidification state of the cast slab in continuous casting is estimated by a heat transmission model using a heat flux based on a cooling condition of at least secondary cooling. Temperature distribution in a width direction of the slab is measured by a thermometer 4b at a preset measurement position in a longitudinal direction of the slab, which is a pulling-out direction of the slab. In addition, heat flux distribution in the width direction of the slab of the heat flux is corrected so that the estimated temperature at the measurement position estimated by the heat transmission model and the temperature distribution in the width direction of the slab measured by temperature distribution measurement means coincide. The degree of center segregation of the slab is determined by comparing a difference between a shortest final solidification position and a longest final solidification shape determined based on an estimated final solidification position and shape with a threshold value specified for each steel product.
摘要翻译：要解决的问题：在铸造过程中，在连续铸造板坯的宽度方向上在线准确地确定在空间和时间上沿着最终凝固形状而变化的中心偏析度。解决方案：连铸中的铸坯的凝固状态为通过使用基于至少二次冷却的冷却条件的热通量的热传递模型来估计。在板坯的宽度方向上的温度分布是通过温度计4b在作为板坯的拉出方向的板坯的长度方向上的预先设定的测量位置测量的。此外，热通量的板坯的宽度方向的热通量分布被校正，使得通过温度分布测量测量的由传热模型估计的测量位置处的估计温度和在板坯的宽度方向上的温度分布意味着重合。通过比较基于估计的最终凝固位置和形状确定的最终最终凝固位置和最长最终凝固形状与针对每个钢产品规定的阈值的差来确定板坯的中心偏析度。

3. 发明专利

JP2012187636A Device and method for estimating solidification state of cast slab, continuous casting device and continuous casting method, and method for predicting final solidification 有权
标题翻译：用于评估铸造SLAB，连续铸造装置和连续铸造方法的固化状态的装置和方法，以及用于预测最终固化的方法
公开(公告)号：JP2012187636A
公开(公告)日：2012-10-04
申请号：JP2012034409
申请日：2012-02-20
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： MIZUNO HIROSHI , SHIMAMOTO HIROYUKI , MAEDA HIROSHI , ASANO KAZUYA , TSUTSUMI KOICHI
IPC分类号： B22D11/16 , B22D11/22 , B22D46/00
摘要： PROBLEM TO BE SOLVED: To allow a final solidification position and a final solidification shape in continuous casting to be more accurately estimated.SOLUTION: A solidification state of a cast slab in the continuous casting is estimated with a heat transfer model using heat flux based on a cooling condition of at least a secondary cooling. The temperature distribution in a width direction of the cast slab is measured at a predetermined measurement position in a longitudinal direction of the cast slab, which is a pulling direction of the cast slab, with a thermometer 4b. Further, the heat flux distribution in the width direction of the cast slab of the heat flux is corrected such that the estimated temperature at the measurement position, estimated with the heat transfer model, and the temperature distribution in the width direction of the cast slab, measured with a temperature distribution measuring means, are conformed.
摘要翻译：要解决的问题是为了更准确地估计连续铸造中的最终凝固位置和最终凝固形状。解决方案：使用基于至少二次冷却的冷却条件的热通量的传热模型来估计连铸中的铸坯的凝固状态。在铸坯的宽度方向上的温度分布，在温度计4b的铸坯的拉拔方向的铸坯的长度方向的规定的测定位置上测定。此外，热流量的铸坯的宽度方向的热通量分布被校正为使用传热模型估计的测量位置处的估计温度和铸坯宽度方向的温度分布，用温度分布测量装置测量，符合。版权所有（C）2013，JPO＆INPIT

4. 发明专利

JP2012139713A Method for predicting breakout 有权
标题翻译：预测断路方法
公开(公告)号：JP2012139713A
公开(公告)日：2012-07-26
申请号：JP2010294092
申请日：2010-12-28
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： HIRATA TAKEHIDE , OMOTO TOMONORI , OGAWA TAKESHI , MIZUNO HIROSHI
IPC分类号： B22D11/16
摘要： PROBLEM TO BE SOLVED: To highly accurately predict a breakout.SOLUTION: A method for predicting a breakout includes: a step of detecting a temperature of a mold using a plurality of thermometers that are buried in the mold of a continuous casting facility, and sensitivity coefficients of which are obtained (S2); a step of defining a vector setting each sensitivity coefficient of the plurality of thermometers as a component thereof, as a sensitivity coefficient vector, and defining a vector setting each detection value of the plurality of thermometers as a component thereof, as a detection temperature vector; a step of setting a component of the detection temperature vector that is perpendicular to the sensitivity coefficient vector, as a degree of deviation (S3); a step of providing a first score to a thermometer in which a component of the degree of deviation exceeds a threshold (S4); a step of calculating a second score from the first score based on an adjacent state of the thermometer provided with the first score (S5); and a step of predicting a breakout based on the second score (S6).
摘要翻译：要解决的问题：高精度地预测突破。解决方案：一种用于预测突破的方法包括：使用埋入在连续铸造设备的模具中的多个温度计来检测模具的温度并获得其灵敏度系数的步骤（S2）; 作为灵敏度系数向量，定义将多个温度计的各灵敏度系数作为其分量设定的矢量的矢量，并将多个温度计的各检测值的矢量设定为其分量的步骤作为检测温度矢量; 将与灵敏度系数矢量垂直的检测温度矢量的分量设定为偏差度的步骤（S3）; 向其中偏差度的分量超过阈值的温度计提供第一分数的步骤（S4）; 基于具有第一分数的温度计的相邻状态从第一分数计算第二分数的步骤（S5）; 以及基于第二分数预测分组的步骤（S6）。版权所有（C）2012，JPO＆INPIT

5. 发明专利

JP2010069513A Method for controlling level of molten metal surface in mold of continuous casting machine 有权
标题翻译：控制连续铸造机模具中金属表面水平的方法
公开(公告)号：JP2010069513A
公开(公告)日：2010-04-02
申请号：JP2008240729
申请日：2008-09-19
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： TACHIKAWA YASUAKI , FUJISHIRO SHOTARO , MIZUNO HIROSHI
IPC分类号： B22D11/18 , B22D11/10 , B22D11/16
摘要： PROBLEM TO BE SOLVED: To provide a method for controlling the level of a molten metal surface in a mold where, when the level of a molten metal surface in a mold of a continuous casting machine is controlled, the influence of standing waves as disturbance is removed, and the level of a molten metal surface in a mold can be correctly controlled. SOLUTION: A molten metal surface level meter 18 is installed in the central position of a mold width, and further, a frequency filter 20 for removing the influence of second standing waves from a molten metal surface level signal measured by the molten metal surface level meter 18 is installed in a molten metal surface level controller 19. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于控制模具中的熔融金属表面的水平的方法，其中当连铸机的模具中的熔融金属表面的水平被控制时，驻波的影响因为干扰被去除，并且可以正确地控制模具中的熔融金属表面的水平。解决方案：将熔融金属表面液位计18安装在模具宽度的中心位置，此外，用于消除由熔融金属测量的熔融金属表面水平信号的第二驻波的影响的频率过滤器20 表面液位计18安装在熔融金属表面液面控制器19中。版权所有（C）2010，JPO＆INPIT

6. 发明专利

JP2014036999A Method for manufacturing continuous cast slab 有权
标题翻译：制造连续铸造砖的方法
公开(公告)号：JP2014036999A
公开(公告)日：2014-02-27
申请号：JP2012181918
申请日：2012-08-20
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： SHIMAMOTO HIROYUKI , MIZUNO HIROSHI , MAEDA HIROSHI , ASANO KAZUYA , TSUTSUMI KOICHI , ARAMAKI NORICHIKA
IPC分类号： B22D11/16 , B22D11/04 , B22D11/11 , B22D11/128 , B22D11/20 , B22D46/00
摘要： PROBLEM TO BE SOLVED: To accurately estimate a final solidification position and a final solidification shape in continuous casting and to control casting on the basis of the estimated results.SOLUTION: A solidification state of the cast slab in continuous casting is estimated by a heat transmission model using a heat flux based on cooling conditions of at least secondary cooling. Temperature distribution in a width direction of the slab is measured by a thermometer 4b at a preset measurement position in a longitudinal direction of the slab, which is a pulling-out direction of the slab. In addition, heat flux distribution in the width direction of the slab of the heat flux is corrected so that an estimated temperature at the measurement position estimated by the heat transmission model and the temperature distribution in the width direction of the slab measured by temperature distribution measurement means coincide. A braking force caused by a magnetic field for a molten steel in a mold is adjusted based on the estimated final solidification shape and a shape in the width direction at a solidification completion position of the slab is controlled so that the difference between the solidification completion position at the most upstream side and the solidification completion position at the most downstream side is shorter than a preset length.
摘要翻译：要解决的问题：准确估计连续铸造中的最终凝固位置和最终凝固形状，并根据估计结果控制铸造。解决方案：连铸中的铸坯的凝固状态通过热传递使用基于至少二次冷却的冷却条件的热通量的模型。在板坯的宽度方向上的温度分布是通过温度计4b在作为板坯的拉出方向的板坯的长度方向上的预先设定的测量位置测量的。此外，热通量的板坯的宽度方向的热通量分布被校正，使得通过温度分布测量测量的由传热模型估计的测量位置处的估计温度和在板坯的宽度方向上的温度分布意味着重合。基于估计的最终凝固形状来调整由模具中的钢水的磁场引起的制动力，并且控制板坯的凝固完成位置处的宽度方向的形状，使得凝固完成位置在最上游侧，最下游侧的凝固完成位置比预设长度短。

7. 发明专利

JP2014036998A Method for manufacturing continuous cast slab 有权
标题翻译：制造连续铸造砖的方法
公开(公告)号：JP2014036998A
公开(公告)日：2014-02-27
申请号：JP2012181917
申请日：2012-08-20
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： SHIMAMOTO HIROYUKI , MIZUNO HIROSHI , MAEDA HIROSHI , ASANO KAZUYA , TSUTSUMI KOICHI , ARAMAKI NORICHIKA
IPC分类号： B22D11/16 , B22D11/22
摘要： PROBLEM TO BE SOLVED: To accurately estimate a final solidification position and a final solidification shape in continuous casting and to change and control casting conditions on the basis of the estimated results.SOLUTION: A solidification state of the cast slab in continuous casting is estimated by a heat transmission model using a heat flux based on a cooling condition of at least secondary cooling. In addition, heat flux distribution in a width direction of the slab of the heat flux is corrected so that the estimated temperature at the measurement position estimated by the heat transmission model and temperature distribution in the width direction of the slab measured by temperature distribution measurement means coincide. The flow state of a molten steel in a mold is estimated by measuring the distribution of mold temperature, and the estimated final solidification shape and the flow state of the molten steel in the mold are compared in synchronism with each other. Based on a preliminarily determined correlation between the final solidification shape and the flow state, continuous casting is performed while controlling the flow of the molten steel in the mold so that the final solidification shape becomes a preset reference shape.
摘要翻译：要解决的问题：准确估计连续铸造中的最终凝固位置和最终凝固形状，并根据估计结果改变和控制铸造条件。解决方案：铸造连铸中的铸坯的凝固状态通过使用基于至少二次冷却的冷却条件的热通量的热传递模型。此外，热通量的板坯的宽度方向的热通量分布被校正，使得通过温度分布测量装置测量的由传热模型估计的测量位置处的估计温度和在板坯的宽度方向上的温度分布重合。通过测量模具温度的分布来估算模具中的钢水的流动状态，并且将模具中的钢水的估计的最终凝固形状和流动状态彼此同步地进行比较。基于最终凝固形状与流动状态之间的初步确定的相关性，在控制模具中的钢水流动的同时进行连续铸造，使得最终凝固形状成为预设的基准形状。

8. 发明专利

JP2011045887A Method and apparatus of discriminating surface maintenance of cast slab in continuous casting 有权
标题翻译：在连续铸造中识别铸造板的表面维护方法和装置
公开(公告)号：JP2011045887A
公开(公告)日：2011-03-10
申请号：JP2009193754
申请日：2009-08-25
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： ITOYAMA SEIJI , MIZUNO HIROSHI , MATSUBA TORU , KAWANAMI SHUNICHI
IPC分类号： B22D11/16 , B22D11/12
摘要： PROBLEM TO BE SOLVED: To provide a discrimination criterion for cast slab maintenance, for more accurately predicting an extent of surface defect of a cast slab caused by movement of molten metal surface. SOLUTION: This invention relates to a method of determining a maintenance criterion of a cast slab surface from information of surface position of molten steel in a continuous casting mold. Disclosed is a method of discriminating surface maintenance of a cast slab in continuous casting, wherein a maintenance amount is determined on the basis of the following formula (1): h/p (wherein h is the amount of movement of molten metal surface; and p is the distance from the tip end of a solidified shell to the claw). COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：为了更准确地预测由熔融金属表面的移动引起的铸坯的表面缺陷的程度，提供铸坯维护的判别标准。解决方案：本发明涉及一种从连续铸造模具中的钢水表面位置信息确定铸坯表面的维护标准的方法。公开了一种连续铸造中的铸造板坯的表面维护的判别方法，其中，维持量基于下式（1）求出：h / p（其中，h为熔融金属表面的移动量; p是从固化壳的尖端到爪的距离）。版权所有（C）2011，JPO＆INPIT

9. 发明专利

JP2011036894A Method and device for determination of surface care of cast slab in continuous casting 审中-公开
标题翻译：用于确定连续铸造中铸造板的表面保护的方法和装置
公开(公告)号：JP2011036894A
公开(公告)日：2011-02-24
申请号：JP2009187817
申请日：2009-08-13
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： ITOYAMA SEIJI , MIZUNO HIROSHI
IPC分类号： B22D11/12 , B22D11/16
摘要： PROBLEM TO BE SOLVED: To provide determination standards for caring cast slab by which the degree of the defect in the surface layer of a cast slab generated in accordance with the variation of a molten metal surface can be predicted at higher precision.
SOLUTION: A device determines the caring of cast slab surface in continuous casting, from the information on the position of the molten metal surface of a molten steel in a continuous casting mold. The device is provided with: a molten metal surface position detector 13 measuring the position of the molten metal surface; a calculation means 15 where the information from the molten metal surface position detector 13 is inputted, and a duration (te-ts) for which the molten metal surface is located at the part lower than the position at the tip of a solidified shell is calculated; and a determination means 17 where, based on the duration calculated by the operation means 15 and the pre-decided standard value of duration, whether care and cleaning are required or not is determined.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供关于铸造板坯的测定标准，其中可以以更高的精度预测根据熔融金属表面的变化产生的铸坯的表面层的缺陷程度。解决方案：根据连续铸造模具中钢水熔融金属表面位置的信息，设备确定铸坯表面在连续铸造中的关注。该装置设有：熔融金属表面位置检测器13，其测量熔融金属表面的位置; 计算装置15，其中输入来自熔融金属表面位置检测器13的信息，并且计算熔融金属表面位于比凝固壳的顶端处的位置低的部分的持续时间（te-ts） ; 以及确定装置17，其中，基于由操作装置15计算的持续时间和预定的持续时间的标准值，确定是否需要关心和清洁。版权所有（C）2011，JPO＆INPIT

10. 发明专利

JP2010214417A Method for predicting shape in widthwise direction of finally solidified part in continuously cast slab and continuous casting method 审中-公开
标题翻译：在连续铸造板和连续铸造方法中预成型的最终固化方法
公开(公告)号：JP2010214417A
公开(公告)日：2010-09-30
申请号：JP2009064104
申请日：2009-03-17
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： MIZUNO HIROSHI , IIZUKA YUKIMICHI , AWAJIYA HIROSHI
IPC分类号： B22D11/16 , B22D11/128 , B22D11/20
摘要： PROBLEM TO BE SOLVED: To provide a prediction method and a control method for the shape in the widthwise direction of a finally solidified part in a continuously cast slab which can numerically represent the shape of a crater end in the widthwise direction of the finally solidified part, can predict the shape upon a change in operating conditions, and can calculate the operation quantity for bringing the shape to a desired shape. SOLUTION: The shape in the widthwise direction of a finally solidified part in a continuously cast slab that is subjected to a low level of rolling reduction by a plurality of rolling rolls disposed near a solidification completion point is represented by a linear bond of a basis function defined by any method of a main component analysis, an independent component analysis, and a Wavelet analysis, and the shape in the widthwise direction of the finally solidified part in the continuously cast slab is predicted from the operation quantity of an operation factor using a digitization model in which the coefficient of the basis function in the linear bond is used as the function of the operation factor of a continuous casting machine. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了提供连续铸造板坯中的最终凝固部分的宽度方向的形状的预测方法和控制方法，其可以数值地表示沿着最终凝固的部分，可以在操作条件变化时预测形状，并且可以计算使形状成为期望形状的操作量。解决方案：通过设置在凝固完成点附近的多个轧辊，经受低水平轧制压缩的连续铸造板坯中的最终凝固部分的宽度方向的形状由通过主成分分析，独立分量分析和小波分析的任何方法定义的基函数，连续铸造板坯中最终凝固部分的宽度方向形状根据运行因子的运算量进行预测使用其中使用线性键合中的基础函数的系数作为连续铸造机的运行系数的函数的数字化模型。版权所有（C）2010，JPO＆INPIT

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