专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JP2011079023A Method for estimating solidification shell thickness in continuous casting and apparatus therefor, and method for detecting breakout in continuous casting and apparatus therefor 有权
标题翻译：用于评估连续铸造中的固结壳厚度的方法及其装置，以及用于在连续铸造中检测断裂的方法及其装置
公开(公告)号：JP2011079023A
公开(公告)日：2011-04-21
申请号：JP2009233823
申请日：2009-10-07
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： IIJIMA HIROMASA , KUBOTA ATSUSHI
IPC分类号： B22D11/16
摘要： PROBLEM TO BE SOLVED: To provide a method and an apparatus which can accurately estimate the thickness of a solidification shell in the exit of a mold in continuous casting for molten steel. SOLUTION: The method for estimating the thickness of a solidification shell in continuous casting is characterized in that: a heat flux q1 of heat input to the solidification interface from the time when the molten steel in the mold in continuous casting is at its surface level to the time when it reaches the mold exit, is measured; a steady solidification interface heat input q2 reg , caused by the flow of molten steel in the mold in a steady state, is obtained based on formula (1), a heat flux profile is obtained for the difference between the heat flux q1 and the steady solidification interface heat input q2 reg (q1-q2 reg ) from the time when the molten steel is at its surface level to the time when it reaches the mold exit; and, based on the heat flux profile, the thickness of the solidification shell at a predetermined position from a molten metal surface toward the outlet of the mold is estimated and, based on this, the thickness of the solidification shell at the mold outlet is predicted, wherein formula (1) is expressed by q2 reg =h×Δθ where q2 reg is a steady solidification interface heat input (J/s/m 2 ); h is a heat transfer coefficient (J/s/m 2 /°C) between the molten steel and the solidification shell; and Δθ is the degree (°C) of super heat in the molten steel. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够精确地估计钢水连续铸造中的模具出口中的凝固壳的厚度的方法和装置。＆lt; P＆gt;解决方案：连续铸造中的凝固壳的厚度估计方法的特征在于：从连续铸造的模具中的钢水起始时，输入到固化界面的热量q1为测量到达模具出口时的表面水平; 根据公式（1）获得由钢水在稳定状态下的钢水流动引起的稳定的界面热输入量q2 reg ，得到热通量曲线，从钢水处于其表面水平时的热通量q1和稳定凝固界面热输入q2 reg （q1-q2 reg ）到达模具出口; 并且基于热通量分布，估计从熔融金属表面朝向模具的出口的预定位置处的凝固壳的厚度，并且基于此，预测出口处的凝固壳的厚度其中式（1）由下式表示：其中q2 稳定凝固界面热输入（J / s / m 2 < / SP>）; h是钢水和凝固壳之间的传热系数（J / s / m 2 /℃） Δθ是钢水中超热的程度（℃）。版权所有（C）2011，JPO＆INPIT

2. 发明专利

JP2010005700A Method for detecting solidification completion position of continuous casting cast piece, detector, and method for producing continuous casting cast piece 有权
标题翻译：用于检测连续铸造件的固化完成位置的方法，检测器和连续铸造铸件的生产方法
公开(公告)号：JP2010005700A
公开(公告)日：2010-01-14
申请号：JP2009235991
申请日：2009-10-13
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： IIZUKA YUKIMICHI , TSUTSUMI KOICHI , KUBOTA ATSUSHI
IPC分类号： B22D11/16
CPC分类号： B22D11/16 , G01N2291/02881
摘要： PROBLEM TO BE SOLVED: To accurately detect a crater end only from a value measured by a sensor without needing calibration based on a slab rivet method. SOLUTION: An ultrasonic shear wave sensor 6, 8 for transmitting an ultrasonic shear wave to a cast product 1 and receiving it and an ultrasonic longitudinal wave sensor 7, 9 for transmitting an ultrasonic longitudinal wave to the cast product and receiving it are installed at the same position in a continuous casting machine or at two positions apart in a casting direction. A casting velocity is increased, and a crater end 4 is moved to the downstream side than the installed position of the ultrasonic shear wave sensor. From variations in strength of a signal received by the ultrasonic shear wave sensor at that time, it is detected that the position at which the solid phase ratio of the central part in the cast product reaches 1 is matched with the installed position of the ultrasonic shear wave sensor. A calculation formula for determining the crater end from a propagation time of an ultrasonic longitudinal wave signal is calibrated such that the crater end computed from the propagation time of the ultrasonic longitudinal wave signal at that time is matched with the installed position of the ultrasonic shear wave sensor. After the calibration, the crater end is determined from the propagation time of the ultrasonic longitudinal wave signal based on the calibrated calculation formula. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：仅通过传感器测量的值来精确地检测火山口端，而不需要基于平板铆钉方法的校准。解决方案：一种用于将超声波剪切波传输到铸造产品1并将其接收的超声剪切波传感器6,8和用于将超声波纵波传送到铸造产品并接收它的超声波纵向传感器7,9 安装在连续铸造机中的相同位置或在铸造方向上分开的两个位置处。铸造速度增加，并且火山口端4移动到超声波剪切波传感器的安装位置的下游侧。由超声波剪切波传感器接收到的信号的强度变化，检测到铸件中心部分的固相比达到1的位置与超声波剪切的安装位置相匹配波传感器。校准从超声波纵波信号的传播时间确定火山口端的计算公式，使得从当时的超声波纵波信号的传播时间计算的火山口端与超声波剪切波的安装位置相匹配传感器。在校准之后，基于校准的计算公式，从超声波纵波信号的传播时间确定火山口端。版权所有（C）2010，JPO＆INPIT

3. 发明专利

JP2013010111A CONTINUOUS CASTING METHOD OF ROUND CAST SLAB FOR MANUFACTURING 13Cr SEAMLESS STEEL TUBE 有权
标题翻译：用于制造13Cr无缝钢管的圆形铸造板连续铸造方法
公开(公告)号：JP2013010111A
公开(公告)日：2013-01-17
申请号：JP2011142968
申请日：2011-06-28
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： KUBOTA ATSUSHI
IPC分类号： B22D11/124 , B22D11/00 , B22D11/16 , B22D11/22 , C22C38/00 , C22C38/40
摘要： PROBLEM TO BE SOLVED: To provide a continuous casting method of round cast slab for manufacturing 13Cr seamless steel tube by which the occurrence of shrinkage hole formed in a last stage of solidification, and A-type cracks attributable thereto are sufficiently suppressed on the practical level together with C-type cracks.SOLUTION: When performing forcible cooling in the last stage of solidification during the continuously casting of a round cast slab for a 13Cr seamless steel tube, as a point at which the core part stress of a strand subjected to continuous casting is converted from the compression side to the tension side, a time point is obtained at which the sign of an integrated value of SR=(dT/dt)-(dT/dt) is converted form negative to positive, the integrated value of SR being derived from a drop rates (dT/dt) and (dT/dt) per unit time of the strand surface temperature Tand the core part temperature T, and the condition for forcible cooling in the last stage of solidification is controlled so that the temperature of the strand core part at the sign conversion point is below 1,100°C, that is the temperature at which the hot ductility of molten steel is caused.
摘要翻译：要解决的问题：提供一种用于制造13Cr无缝钢管的圆铸坯的连续铸造方法，其中在最后固化阶段形成的收缩孔的发生和归因于其的A型裂纹被充分抑制实际水平与C型裂缝一起。
解决方案：在连续铸造13Cr无缝钢管的圆形铸造板期间，在最终凝固阶段进行强制冷却时，作为将连续铸造的钢丝的芯部应力从压缩侧到张力侧，获得SR =（dT s / SB / dt）的积分值的符号 - （dT c / dt）从负值转换为正值，SR的积分值从丢失率（dT s / SB / dt）和（dT 股线表面温度T s 的每单位时间的 c / dt），芯部温度T

4. 发明专利

JP2011218445A Centrifugal casting apparatus and centrifugal casting method 审中-公开
标题翻译：离心铸造装置和离心铸造方法
公开(公告)号：JP2011218445A
公开(公告)日：2011-11-04
申请号：JP2011058389
申请日：2011-03-16
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： KUBOTA ATSUSHI
IPC分类号： B22D13/06
摘要： PROBLEM TO BE SOLVED: To provide a centrifugal casting apparatus in which a melting furnace is disposed away from a turing arm on which a centrifugal force acts, and which can perform unidirectional solidification under an action of a large centrifugal force.SOLUTION: The centrifugal casting apparatus includes: a melting furnace 2 for melting metal within a heat-resistant container 5; a conveying unit 3 for taking out the heat-resistant container 5 from the melting furnace 2 and for conveying the taken out heat-resistant container 5; and a turning arm 4 provided with a container holding case 6 at one end thereof, rotatably connected between a vertical position and a horizontal position, and having both a storage space for storing the heat-resistant container 5 conveyed from the melting furnace 2 by means of the conveying unit 3 and a heat-resistant member for keeping the temperature of the heat-resistant container 5, and also having a first cooling unit 22 for cooling only the bottom section of the heat-resistant container 5 stored in the storage space and a second cooling unit 23 for cooling only the side wall sections of the heat-resistant container 5, and provided with a weight adjusting case 8 at the other end thereof for storing a balancing weight 36 for adjusting weight with the one end of the turning arm, wherein the turning arm is turnably disposed turning around the center position on the line connecting the one end to the other end as a turning axis.
摘要翻译：要解决的问题：提供一种离心浇铸设备，其中熔化炉远离离心力作用的图案臂，并且可以在大离心力的作用下进行单向凝固。解决方案：离心铸造设备包括：用于熔化耐热容器5内的金属的熔化炉2; 用于从熔化炉2取出耐热容器5并输送所取出的耐热容器5的输送单元3; 以及转动臂4，其一端设置有容纳保持壳体6，可旋转地连接在垂直位置和水平位置之间，并且具有用于存储从熔化炉2输送的耐热容器5的存放空间的输送单元3和用于保持耐热容器5的温度的耐热构件，并且还具有用于仅冷却储存在储存空间中的耐热容器5的底部的第一冷却单元22，以及用于仅冷却耐热容器5的侧壁部分的第二冷却单元23，并且在其另一端设置有重量调节壳体8，用于存储用于与转臂的一端调节重量的平衡重块其特征在于，所述转动臂可转动地设置为将所述一端与另一端连结的线作为转动轴线转动。版权所有（C）2012，JPO＆INPIT

5. 发明专利

JP2010221283A Method and apparatus for detecting breakout in continuous casting, continuous casting method of steel using the apparatus, and breakout preventing apparatus 审中-公开
标题翻译：在连续铸造中检测断裂的方法和装置，使用装置的钢的连续铸造方法和防止破坏装置
公开(公告)号：JP2010221283A
公开(公告)日：2010-10-07
申请号：JP2009072983
申请日：2009-03-25
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： IIJIMA HIROMASA , KUBOTA ATSUSHI
IPC分类号： B22D11/16 , B22D11/11
摘要： PROBLEM TO BE SOLVED: To provide a method and an apparatus which accurately detect the occurrence of the breakout of a slab in the continuous casting of molten steel.
SOLUTION: The method for detecting breakout in continuous casting comprises: measuring a heat flux q 1 input to a solidification interface during the period of time when the molten steel in a mold in continuous casting reaches a mold outlet from a molten steel surface; obtaining a normal heat input q 2
req to the solidification interface due to molten steel flow in the mold in a normal state by the following equation (1); obtaining a heat flux profile observed until the molten steel reaches the mold outlet from the molten steel surface for difference between the heat flux q 1 and the normal heat input q 2
req to the solidification interface; and determining presence/absence of the risk of the occurrence of the breakout on the basis of a degree of solidification delay RS calculated by an overall heat flux Q2 corresponding to an area of a portion located above a line connecting the minimum point of the heat flux profile and a local heat flux value at the mold outlet, wherein q 2
reg =h×Δθ (1), q 2
reg : heat input (J/s×m
2 ) of the steady solidification interface, h: the heat transfer coefficient (J/s×m
2 ×°C) between the molten steel and the solidified shell, and Δθ: the superheat degree (°C) of the molten steel.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种在钢水连续铸造中精确检测板坯断裂发生的方法和装置。解决方案：连续铸造检测断路的方法包括：测量在连续铸造的模具中的钢水从钢水表面到达模具出口的期间输入到凝固界面的热通量q 1 ; 通过下列方程（1）由于钢水在正常状态下的钢水流向凝固界面获得正常的热输入量q 2 req 。获得热量通量分布，直到钢水表面的热量q 1和正常热输入q 2 req 之间的温度达到凝固界面的钢水表面的钢水出口为止; 并根据通过对应于位于连接热通量的最小点的一个部分的一部分的面积的总热通量Q2计算出的凝固延迟度RS来确定有无发生爆发的风险型材和模具出口处的局部热通量值，其中q 2 reg = h×Δθ（1），q 2 reg ：热输入（J / s×m 2 ），h：钢水与固化壳之间的传热系数（J / s×m 2 ×°C），Δθ ：钢水的过热度（℃）。版权所有（C）2011，JPO＆INPIT

6. 发明专利

JP2009202166A Secondary cooling method and secondary cooling device in continuous casting 有权
标题翻译：连续铸造二次冷却方法和二次冷却装置
公开(公告)号：JP2009202166A
公开(公告)日：2009-09-10
申请号：JP2008044175
申请日：2008-02-26
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： NAKASEKO MAKOTO , FUJIBAYASHI TERUO , KUBOTA ATSUSHI , ITO YOICHI , KAWANAMI SHUNICHI
IPC分类号： B22D11/124 , B22D11/22
摘要： PROBLEM TO BE SOLVED: To provide a secondary cooling method and a secondary cooling device where, when a slab during casting is cooled in a secondary cooling zone of continuous casting equipment, the slab can be uniformly cooled without generating temperature unevenness in the surface of the slab.
SOLUTION: The secondary cooling method is characterized in that, when the surface of a slab cast by a continuous casting machine is cooled in a secondary cooling zone provided at the lower part of a mold with cooling water or a mixed body of cooling water and a gas, the surface temperature of the slab is held to a region of film boiling of not less than an MHF point, so as to be cooled. The secondary cooling device is characterized in that in the space between adjoining rolls 3 in the continuous casting machine, a perforated plate nozzle 1 is disposed having many jet pores 6 at the face confronted with the slab 2, and feeding cooling water or a mixed body of cooling water and a gas from the jet pores 6, so as to cool the surface of the slab.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：为了提供二次冷却方法和二次冷却装置，其中当铸造中的板坯在连续铸造设备的二次冷却区域中冷却时，可以均匀地冷却板坯，而不会产生温度不均匀板的表面。解决方案：二次冷却方法的特征在于，当通过连续铸造机铸造的板坯的表面在设置在具有冷却水或冷却混合体的模具的下部的二次冷却区域中冷却时水和气体，将板坯的表面温度保持在不低于MHF点的膜沸腾区域，以进行冷却。二次冷却装置的特征在于，在连续铸造机中的相邻辊3之间的空间中，在与板坯2相对的面上配置有多个喷孔6的多孔板喷嘴1，并且供给冷却水或混合体的冷却水和来自喷射孔6的气体，以便冷却板坯的表面。版权所有（C）2009，JPO＆INPIT

7. 发明专利

JP2009195959A Method and device for surface temperature measurement of cast slab on continuous caster 审中-公开
标题翻译：连铸机表面温度测量方法及装置
公开(公告)号：JP2009195959A
公开(公告)日：2009-09-03
申请号：JP2008041158
申请日：2008-02-22
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： KUBOTA ATSUSHI , ITO YOICHI , MURAI TAKESHI , NAKASEKO MAKOTO
IPC分类号： B22D11/16
摘要： PROBLEM TO BE SOLVED: To measure an accurate surface temperature of a cast slab using a radiation thermometer without disturbance of moisture, when measuring surface temperature of the cast slab in a continuous caster being continuously cast.
SOLUTION: When surface temperature of the cast piece 11 in the continuous caster is measured using the radiation thermometer 12, spray of secondary cooling water from a spray nozzle 5 to a temperature measuring zone of the cast slab surface is temporarily interrupted by activating an electromagnetic shielding valve 13. Thus, the surface temperature of the cast slab is measured by the radiation thermometer in the state of suppressing generation of steam caused by the secondary cooling water in the temperature measuring zone of the cast slab surface.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：在连续铸造的连铸机中测量铸坯的表面温度时，使用辐射温度计测量铸坯的精确表面温度，不受潮湿的影响。
解决方案：使用辐射温度计12测量连铸机的铸件11的表面温度时，从喷嘴5向铸坯表面的温度测量区喷射二次冷却水，通过激活电磁屏蔽阀13.因此，在铸坯表面的温度测量区域中，在抑制由二次冷却水产生的蒸汽产生的状态下，通过辐射温度计测量铸坯的表面温度。版权所有（C）2009，JPO＆INPIT

8. 发明专利

JP2012218035A METHOD FOR MANUFACTURING ROUND STEEL SLAB FOR FORMING SEAMLESS STEEL PIPE OF HIGH Cr STEEL 有权
标题翻译：高铬钢无缝钢管制造圆钢板的制造方法
公开(公告)号：JP2012218035A
公开(公告)日：2012-11-12
申请号：JP2011086775
申请日：2011-04-08
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： ABE MASAMICHI , KUBOTA ATSUSHI
IPC分类号： B22D11/124 , B21B1/02 , B21B19/04 , B22D11/00 , B22D11/22
摘要： PROBLEM TO BE SOLVED: To provide a method for manufacturing a round steel slab for forming a seamless steel pipe of high Cr steel, which is capable of improving the internal quality of the round steel slab for forming the seamless steel pipe of high Cr steel, and reducing the ratio of generation of inner surface defects of the seamless steel pipe of high Cr steel to be manufactured via the Mannesmann piercing method to be substantially zero.SOLUTION: In a continuous casting stage of a high-Cr molten steel containing 12-14% Cr by mass ratio, cracks of an axis center part are reduced by executing the forced cooling for adding the compressive stress to a strand of a circular cross section containing non-solidified molten steel, and the obtained continuous casting round slab with reduced cracks of the axis center part is reheated, and thereafter, the diameter reduction rolling of the rolling-reduction ratio of 1.5-3.0 is executed.
摘要翻译：解决的问题：提供一种用于形成高Cr钢无缝钢管的圆钢坯的制造方法，其能够提高用于形成高无缝钢管的圆钢板的内部质量 Cr钢，并且通过Mannesmann穿孔法将要制造的高Cr钢的无缝钢管的内表面缺陷的产生比例基本上为零。解决方案：在含有质量比为12-14％Cr的高Cr钢水的连续铸造阶段中，通过执行强制冷却来减小轴心部分的裂纹，从而将压缩应力加到包含非凝固钢水的圆形横截面，并且将所获得的轴心部分的裂纹的连续铸造圆形板坯再加热，然后执行轧制压下率为1.5-3.0的直径减小轧制。版权所有（C）2013，JPO＆INPIT

9. 发明专利

JP2012066278A Method and device for predicting quality of cast slab surface layer 有权
标题翻译：用于预测铸件表面层质量的方法和装置
公开(公告)号：JP2012066278A
公开(公告)日：2012-04-05
申请号：JP2010213031
申请日：2010-09-24
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： FUJITA HIROKI , NAKATANI KENJI , KUBOTA ATSUSHI
IPC分类号： B22D11/16
摘要： PROBLEM TO BE SOLVED: To correctly predict whether or not inclusions and bubbles forming a surface defect are present in a slab, and to predict the quality of a surface layer of a cast slab taking into consideration generation of defects caused by degradation of cleanliness of molten steel.SOLUTION: A method for predicting the quality of a cast slab surface layer includes: a flow rate calculating step of acquiring the temperatures at the measurement positions through a plurality of thermocouples 10 disposed on a casting mold 1, and calculating the flow rate of the molten steel on a solidifying shell interface from the acquired temperatures; an adhesion determining step of comparing the preset washout critical flow rate of inclusions and bubbles with the flow rate of the molten steel calculated in the flow rate calculating step, and determining presence of inclusions and bubbles possibly forming any surface defect on a solidifying shell corresponding to the measurement position under the condition that the calculated flow rate of the molten steel is below the wash-out critical flow rate; and a drift detection step of calculating the degree of the drift from the flow rate of the molten steel calculated in the flow rate calculating step, and determining presence/absence of generation of any slab defect associated with the drift based on the degree of the drift.
摘要翻译：要解决的问题：为了正确地预测板坯中是否存在形成表面缺陷的夹杂物和气泡，并且考虑到由劣化引起的缺陷的产生来预测铸坯的表面层的质量钢水清洁。解决方案：用于预测铸坯表面层的质量的方法包括：流量计算步骤，通过设置在铸模1上的多个热电偶10获取测量位置的温度，并计算流量从取得的温度在凝固壳界面上的钢水; 粘附确定步骤，将在流量计算步骤中计算的夹杂物和气泡的预设冲洗临界流量与所述钢水的流量进行比较，并且确定在对应于所述流化床计算步骤的凝固壳上可能形成任何表面缺陷的夹杂物和气泡的存在在计算的钢水流量低于冲洗临界流量的条件下测量位置; 以及漂移检测步骤，根据在流量计算步骤中计算出的钢水流量来计算漂移度，并根据漂移程度确定是否存在与漂移相关的板坯缺陷的产生。版权所有（C）2012，JPO＆INPIT

10. 发明专利

JP2011224649A Continuous casting method of steel 有权
标题翻译：钢的连续铸造方法
公开(公告)号：JP2011224649A
公开(公告)日：2011-11-10
申请号：JP2010152198
申请日：2010-07-02
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： KUBOTA ATSUSHI , UEHARA HIROHIDE , KOMAKI MICHIYA , AWAJIYA HIROSHI
IPC分类号： B22D11/124 , B22D11/22
摘要： PROBLEM TO BE SOLVED: To provide a continuous casting method of steel capable of efficiently preventing surface crack of a cast slab.SOLUTION: In the continuous casting method of steel in which a cast slab having a rectangular section is extracted from a mold in the vertical direction, and then, drawn in the horizontal direction, a range of 30 mm from a corner part forming an upper end in a short ridge surface forming a side face of the cast slab when the cast slab is drawn in the horizontal direction is spray-cooled so as to be transformed into any one of a ferritic single phase structure, a pearlite structure and a bainite structure from an austenitic single phase before 300 seconds are elapsed after the surface temperature of the cast slab is below 910°C.
摘要翻译：要解决的问题：提供能够有效地防止铸坯的表面裂纹的钢的连续铸造方法。解决方案：在连铸法中，将具有矩形截面的铸造板从模具沿垂直方向抽出，然后在水平方向上拉伸，从形成角部的30mm的范围在铸造板坯沿水平方向拉伸时形成铸坯的侧面的短脊面的上端被喷雾冷却，从而转变为铁素体单相结构，珠光体组织和在铸坯的表面温度低于910℃之前经过300秒之前的奥氏体单相贝氏体组织。版权所有（C）2012，JPO＆INPIT

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式