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1. 发明专利

JP2014188521A Mold for continuous casting and manufacturing method of mold for continuous casting 有权
标题翻译：用于连续铸造的模具的连续铸造和制造方法
公开(公告)号：JP2014188521A
公开(公告)日：2014-10-06
申请号：JP2013063497
申请日：2013-03-26
申请人： Jfe Steel Corp , Jfeスチール株式会社 , Nomura Plating Co Ltd , 株式会社野村鍍金
发明人： IWATA NAOMICHI , NABESHIMA SEIJI , ARAMAKI NORICHIKA , MIKI YUJI , NAKAI KEIJI
IPC分类号： B22D11/04 , B22D11/057 , B22D11/059
摘要： PROBLEM TO BE SOLVED: To provide a mold for continuous casting in which a recess is provided on a mold inner wall surface of the mold for continuous casting, and when the recess is filled with a low heat-conductive metal, the recess is filled closely with the low heat-conductive metal, and to provide a manufacturing method of the mold for continuous casting.SOLUTION: A mold for continuous casting is provided with a recess 2 formed sectionally by a bottom wall 2a and a side wall 2b linked to the edge of the bottom wall 2a on a mold wall part forming a casting space, and having an open end 2c opened on the outer surface of the mold wall part, and includes a metal filled layer 3 formed by plating treatment or spray coating in the recess 2. The mold for continuous casting is further provided with a rounding part 2d on a portion where the bottom wall 2a and the side wall 2b of the recess 2 are intersected together.
摘要翻译：要解决的问题：提供一种用于连续铸造的模具，其中在用于连续铸造的模具的模具内壁表面上设置有凹部，并且当凹部填充有低导热金属时，凹部被填充紧密并且提供用于连续铸造的模具的制造方法。解决方案：用于连续铸造的模具设置有凹部2，凹部2由底壁2a和连接到边缘的侧壁2b分段地形成在形成铸造空间的模具壁部上形成底壁2a，并且在模具壁部的外表面上开设有开口端2c，并且包括通过在凹部2中进行电镀处理或喷涂而形成的金属填充层3 用于连续铸造的模具还在凹部2的底壁2a和侧壁2b相交的部分上设置有圆形部2d。

2. 发明专利

JP2015009264A 鋼の連続鋳造方法有权
标题翻译：钢的连续铸造方法
公开(公告)号：JP2015009264A
公开(公告)日：2015-01-19
申请号：JP2013137745
申请日：2013-07-01
申请人： Jfeスチール株式会社 , Jfe Steel Corp
发明人： TOISHI KEIGO , ARAMAKI NORICHIKA , ONO HIROYUKI , MIKI YUJI
IPC分类号： B22D11/128 , B22D11/20
摘要：【課題】スラブ鋳片の厚みに応じて軽圧下条件を設定し、圧下量不足による鋳片中心偏析の発生や、過剰な圧下量による鋳片内部割れの発生を防止する。【解決手段】厚みが160〜350mm、幅が1600〜2400mmである鋳片10の、厚み中心部の固相率が0.1に相当する温度となる時点から厚み中心部の固相率が流動限界固相率に相当する温度となる時点までの領域を、複数の鋳片支持ロール対の設置された軽圧下帯14で圧下しながら連続鋳造する際に、鋳造対象の鋳片の厚み(D)、前記軽圧下帯14の圧下勾配(Z)、鋳片の引き抜き速度(V)を、下記の(1)式及び下記の(2)式の関係を満足させる。但し、αは厚み係数(−)、Doは基準鋳片の鋳型直下での厚み(mm)、&bgr;及びγは、鋳片の幅W(mm)によって定まる係数である。0.3/(V?α)
摘要翻译：要解决的问题：通过根据板坯铸件的厚度设定轻的通风条件，防止通过通风量不足的铸件中心偏析和过度通风量的铸件内部裂纹的发生。解决方案：当厚度中心部分的固相率成为与流体极限固相率相对应的温度时，连续铸造一段时间，该时间与厚度中心部分的固相率成为对应于 0.1，在具有160-350mm厚度和1600-2400mm宽度的铸件10中，同时通过用于安装多个铸件支撑辊对的浅牵伸带14进行牵伸，铸件的厚度（D）（1）式和下述式（1）的关系设定为铸造对象的牵引斜度（Z）和铸件的抽出速度（V）（2）公式。这里，α是厚度因子（ - ），Do是在参考铸件的铸模正下方的厚度（mm），＆bgr; 和γ各自是由铸件的宽度W（mm）确定的因子。 0.3 /（V×α）

3. 发明专利

JP2013123739A Method for detecting solidification completion position of casting slab and method for controlling solidification completion position, in continuous casting 有权
标题翻译：用于检测铸造板的固化完成位置的方法和连续铸造中用于控制固化完井位置的方法
公开(公告)号：JP2013123739A
公开(公告)日：2013-06-24
申请号：JP2011274258
申请日：2011-12-15
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： ONO HIROYUKI , MIKI YUJI , ARAMAKI NORICHIKA , TSUTSUMI KOICHI , FUJITA KIYOHIKO
IPC分类号： B22D11/16 , B22D11/20
摘要： PROBLEM TO BE SOLVED: To provide a method which can simply and accurately detect a solidification completion position of a casting slab without involving cost increase in equipment and which further allows a casting capacity in a continuous casting machine to be improved to become maximum.SOLUTION: Continuous casting for casting a casting slab is performed such that the casting slab S continuously extracted from a continuous casting mold 1 is supported by a roll segment 6 in which a plurality of pairs of support rolls 5 are integrated and an upper frame 6a and a lower frame 6b are mutually connected through a tie rod 6c. In the continuous casting, during the casting slab S is extracted to be moved, displacement quantity of the upper frame 6a for at least one of an inlet side and an outlet side of the roll segment 6 is measured, and when amplitude of the measured displacement quantity is 0.1 mm or more, the solid phase ratio in an axis of the casting slab S at the inlet side or the outlets side of the roll segment 6 is determined to be at least the solid phase ratio at the limit of fluidization. Then, based on the determination result, a solidification completion position of the casting slab S is detected, so that the roll segment 6 in the solidification completion position is specified.
摘要翻译：要解决的问题：提供一种能够简单且准确地检测铸坯的凝固完成位置而不涉及设备成本增加的方法，并且还允许连铸机中的铸造能力提高到最大。解决方案：铸造铸造板坯的连续铸造，使得从连续铸造模具1连续抽出的铸造板坯S由多个支撑辊5一体化的辊段6支撑，框架6a和下框架6b通过拉杆6c相互连接。在连续铸造中，在铸造板坯S被提取移动时，测量辊段6的入口侧和出口侧中的至少一个的上部框架6a的位移量，并且当测量的位移数量为0.1mm以上时，将轧制部6的入口侧或出口侧的铸坯S的轴线的固相比确定为在流动极限时的固相比至少为固相率。然后，根据判定结果，检测铸坯S的凝固完成位置，从而规定凝固完成位置的辊段6。版权所有（C）2013，JPO＆INPIT

4. 发明专利

JP2012045552A Continuous casting method of steel cast slab 有权
标题翻译：钢铸造连续铸造方法
公开(公告)号：JP2012045552A
公开(公告)日：2012-03-08
申请号：JP2010186722
申请日：2010-08-24
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： TSUTSUMI KOICHI , MIKI YUJI , ARAMAKI NORICHIKA
IPC分类号： B22D11/16 , B22D11/12 , B22D11/128 , B22D11/20
摘要： PROBLEM TO BE SOLVED: To reduce centerline segregation generated in a center portion of a continuously-cast steel cast slab.SOLUTION: A steel cast slab is continuously-cast while the steel cast slab is subjected to rolling-reduction from at least when the solidus ratio of a thickness center portion of the cast slab is 0.3 till when it is 0.7 by using a continuous casting machine 1 provided with a soft rolling-reduction belt 14 for imparting the rolling-reduction force to a cast slab 10. In this case, the mean value B(mm) of the roll-to-roll bulging amount from when the solidus ratio of the thickness center portion of the cast slab is 0.3 till when it is 0.7 is obtained by the unsteady heat transfer solidification calculation, the rolling-reduction amount from when the solidus ratio of the thickness center portion of the cast slab is 0.3 till when it is 0.7 is measured, the effective rolling-reduction rate A(mm/min) from when the solidus ratio of the thickness center portion of the cast slab is 0.3 till when it is 0.7 is calculated based on the measured rolling-reduction amount, the ratio (A/B, unit: 1/min) of the effective rolling-reduction rate A obtained by the calculation to the mean value B is obtained for each cross section of the cast slab, and the casting condition is adjusted so that the obtained ratio (A/B) is ≥8.0.
摘要翻译：要解决的问题：为了减少在连铸铸钢板的中心部分产生的中心线偏析。解决方案：钢铸坯连续铸造时，至少当铸坯厚度中心部分的固相比为0.3，直到0.7为0.7时，钢铸板坯进行轧制还原连续铸造机1设置有用于向铸坯10赋予轧制压力的软性轧制减少带14.在这种情况下，与固相线相比，卷对卷膨胀量的平均值B（mm）铸坯厚度中心部分的比例为0.3，直到通过不稳定的热传递凝固计算得到0.7时，从铸坯厚度中心部分的固相率为0.3到当时的轧制压下量根据测定的轧制量减少量，计算从铸坯的厚度中心部的固相率为0.3到0.7时的有效轧制压下率A（mm / min），为0.7，比例（A / B，单位：1 / mi 对铸坯的各横截面求出对平均值B的计算得到的有效轧制压下率A的n），调整铸造条件，使得得到的比例（A / B）为≥8.0。版权所有（C）2012，JPO＆INPIT

5. 发明专利

JP2009241144A Gas cutting-off method of continuously cast material and gas cutting-off machine 有权
标题翻译：连续铸造材料和气体切割机的气体切割方法
公开(公告)号：JP2009241144A
公开(公告)日：2009-10-22
申请号：JP2008093272
申请日：2008-03-31
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： TANAKA HIDESHIGE , ARAMAKI NORICHIKA , ORISAKA KIYOSHI , TERAO HIDEO
IPC分类号： B22D11/126 , B23K7/00
摘要： PROBLEM TO BE SOLVED: To provide a gas cutting-off method for a continuously cast material capable of increasing cutting-off speed of gas cutting-off, and moreover, lessening the gouged amount of a cut surface.
SOLUTION: The gas cutting-off machine uses a burner 20 which spouts combustion gas for forming a preheating flame and preheating oxygen and spouts oxygen for cutting for combusting and cutting a steel preheated by a preheating flame. The height from the burner 20 to the steel 16 is set at ≥100 to ≤30 mm. The pressure of the oxygen for cutting-off supplied to the burner 20 is regulated to ≥1.00 to ≤1.2 MPa in gauge pressure. The cutting-off speed of the steel 16 by the burner 20 is set at ≥500/min.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：解决的问题：为了提供一种能够提高气体切断的切断速度的连续铸造材料的气体切断方法，进一步减小切割面的切割量。气体切断机使用燃烧器20，其喷射燃烧气体以形成预热火焰并预热氧气并喷出用于切割的氧气，用于燃烧和切割由预热火焰预热的钢。从燃烧器20到钢16的高度设定在≥100〜≤30mm。供给燃烧器20的切断用氧气的压力在表压被调节为≥1.00〜≤1.2MPa。由燃烧器20将钢16的切断速度设定为≥500/ min。版权所有（C）2010，JPO＆INPIT

6. 发明专利

JP2015016499A 鋼の連続鋳造方法有权
标题翻译：钢的连续铸造方法
公开(公告)号：JP2015016499A
公开(公告)日：2015-01-29
申请号：JP2013146507
申请日：2013-07-12
申请人： Jfeスチール株式会社 , Jfe Steel Corp
发明人： ARAMAKI NORICHIKA , FURUMAI KOHEI , INOUE NOBORU , MIKI YUJI
IPC分类号： B22D11/10 , B22D11/117 , B22D41/58
摘要：【課題】溶鋼中に吹き込まれる不活性ガスの鋳片への残留気泡に起因したHICの発生を防止し、且つ、アルミナ等の非金属介在物の付着による浸漬ノズルの閉塞を防止する。【解決手段】溶鋼流出孔22内を流下する溶鋼中に上ノズル13を介して不活性ガスを吹き込みながら溶鋼1を連続鋳造する連続鋳造方法であって、前記上ノズルは、外周を鉄皮で被覆され、且つ、外周から内周に貫通する直径が100〜400μmの複数のガス吹き込み貫通孔を備えており、該上ノズルから2〜15NL/minのArガス、N2ガスまたはArガスとN2ガスとの混合ガスを溶鋼中に吹き込むときのガス背圧が1.5kgf/cm2(≒147kPa)以上5.0kgf/cm2(≒490kPa)以下となるように、ガス吹き込み貫通孔の設置数が設定された上ノズルを使用して、2〜15NL/minのArガス、N2ガスまたはArガスとN2ガスとの混合ガスを溶鋼中に吹き込む。【選択図】図1
摘要翻译：要解决的问题：为了防止由吹入钢水的惰性气体的残留气泡引起的HIC产生，并且防止通过粘附诸如氧化铝的非金属夹杂物而使浸入式喷嘴堵塞。解决方案：A 提供连续铸造方法，用于连续铸造钢水1，同时通过上喷嘴13将惰性气体吹入钢水流出孔22中向下流动的钢水中，并且喷嘴设置有多个气体吹入外周覆盖有外壳的直径为100-400μm的从外周贯穿内周的直径的通孔，Ar气，N气或Ar气的混合气体和2-15NL的Ngas / min通过使用设定气体吹入通孔的安装数量的上部喷嘴吹入熔融金属中，使得当吹入Ar气体，N气体或Ar气体的混合气体时的气体背压以及 Ngas 2-15 NL / m 从上喷嘴进入熔融金属，变为1.5kgf / cm（≈147kPa）至5.0kgf / cm（≈490kPa）。

7. 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。

8. 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。

9. 发明专利

JP2014028399A Method and apparatus for detecting solidification completed position of continuous casting cast piece, and method and apparatus for continuous casting 审中-公开
标题翻译：用于检测连续铸造件固化完井位置的方法和装置，以及连续铸造的方法和装置
公开(公告)号：JP2014028399A
公开(公告)日：2014-02-13
申请号：JP2013139369
申请日：2013-07-03
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： ONO HIROYUKI , ARAMAKI NORICHIKA , TOISHI KEIGO , MIKI YUJI
IPC分类号： B22D11/16 , B22D11/20
摘要： PROBLEM TO BE SOLVED: To provide a method and device for accurately detecting a solidification completed position of the continuous casting cast piece in a simple method, and to provide a method and apparatus for controlling the solidification completed position in a predetermined position by using this method and device.SOLUTION: A method of the present invention is provided for detecting a solidification completion position in a continuous casting method for successively drawing out a cast piece 2 while supporting it with a roll segment 17. The method includes the steps of: installing a coned disc spring 21 at least in an outlet side column support 19b of a roll segment 17 to be measured; setting a rolling reduction gradient in the roll segment 17 in such a manner that the rolling reduction reaction force becomes larger than a ferrostatic pressure according to a slab size; setting a load (coned disc spring displacement load) at which the coned disc spring 21 begins to be bent is set in such a manner that the segment load when the solidification completion position of the cast piece is present in an upstream side from an inlet side column support 19a is larger than the load when the coned disc spring begins to be bent, and that the latter load is larger than the segment load when the solidification completion position of the cast piece is present in a downstream side from the outlet side column support 19b; and measuring the bending amount of the coned disc spring 21, and thus identifying the solidification completion position.
摘要翻译：要解决的问题：提供一种用于以简单的方法准确地检测连续铸造铸件的凝固完成位置的方法和装置，并且提供一种通过使用该方法来控制预定位置的凝固完成位置的方法和装置和装置。解决方案：提供本发明的一种方法，用于在连续铸造方法中检测凝固完成位置，以连续地拉出铸件2，同时用辊段17支撑该铸件2.该方法包括以下步骤：至少在要测量的辊段17的出口侧柱支撑件19b中的锥形盘簧21; 在轧辊段17中设定轧制压下梯度，使得轧制压下反作用力大于根据板坯尺寸的静电压力; 设置盘形弹簧21开始弯曲的负载（圆锥形弹簧位移载荷）设定成当铸件的凝固完成位置从入口侧的上游侧存在时的分段载荷柱支撑件19a大于当盘形弹簧开始弯曲时的负载，并且当铸件的凝固完成位置存在于出口侧柱支撑件的下游侧时，后者的负载大于段负载 19B; 并测量碟形弹簧21的弯曲量，从而识别凝固完成位置。

10. 发明专利

JP2014025111A Method for producing high cleanliness steel 有权
标题翻译：生产高清洁钢的方法
公开(公告)号：JP2014025111A
公开(公告)日：2014-02-06
申请号：JP2012166450
申请日：2012-07-27
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： OKAMOTO SHINGO , ARAMAKI NORICHIKA , INOUE NOBORU , NISHIGORI MASANORI
IPC分类号： C21C7/06 , B22D1/00 , C21C7/00 , C21C7/04 , C21C7/076 , C21C7/10
CPC分类号： Y02P10/242
摘要： PROBLEM TO BE SOLVED: To provide a method for producing a high cleanliness steel in which slag in a ladle is solidified, thus its outflow from the ladle to a tundish is prevented, further, the cleanliness of a molten steel present in the vicinity of the slag in the ladle is improved, and a slab having reduced inclusions and having excellent cleanliness is produced even under high speed casting.SOLUTION: A molten steel is tapped from a converter to a ladle in an undeoxidized state, after the tapping, metal Al or Al dross is added to slag in the ladle, lower oxides in the slag are reduced, also, an MgO source comprising hydroxides and carbonates is added to the slag in such a manner that the concentration of MgO in the slab reaches 6 to 15 mass%, then, in a vacuum degassing apparatus, carbon in the molten steel and dissolved oxygen are reacted to reduce the concentration of the dissolved oxygen to 0.050 mass% or lower, thereafter, the molten steel is deoxidized with metal Al, deoxidation by Mn addition is not performed till the metal Al is added in the vacuum degassing apparatus after the tapping of the molten steel, in the case the regulation of an Mn component in the molten steel is required, Mn-containing metal is added after the Al deoxidation to perform Mn regulation, and subsequently, the molten steel is cast into a slab by a continuous casting machine.
摘要翻译：要解决的问题：提供一种生产钢水中的炉渣固化的高洁净度钢的方法，从而防止钢包从钢包流出到中间包，此外，钢水中存在的钢水的清洁度钢包中的炉渣得到改善，并且即使在高速铸造下也产生具有降低的夹杂物并且具有优异清洁度的板坯。解决方案：在脱硫后，将钢水从转炉中轻敲到钢包，在出钢之后，金属Al或在钢包中的渣中加入渣滓，炉渣中的低级氧化物还原，并且，将含有氢氧化物和碳酸盐的MgO源以这样的方式添加到炉渣中，使得板坯中的MgO浓度达到6〜15质量％然后，在真空脱气装置中，使钢水中的碳和溶解氧反应，使溶解氧浓度降低至0.050质量％以下，然后用金属Al脱氧，脱氧通过Mn添加不进行，直到在钢水出钢之后在真空脱气装置中添加金属Al，在需要调节钢水中的Mn成分的情况下，在Al之后添加含Mn金属脱氧以进行Mn调节，随后通过连续铸造机将钢水浇铸成板坯。

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