专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

11. 发明专利

JP2011174102A METHOD FOR PRODUCING HIGH-Si STEEL WITH LESS S AND Ti CONTENTS 有权
标题翻译：用于生产不含S和Ti含量的高Si钢的方法
公开(公告)号：JP2011174102A
公开(公告)日：2011-09-08
申请号：JP2010036987
申请日：2010-02-23
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： NABESHIMA SEIJI , TAKASHIMA MINORU
IPC分类号： C21C7/00 , C21C7/04
摘要： PROBLEM TO BE SOLVED: To provide a method for producing a high-Si steel having ≤0.020 mass% S concentration, ≤0.020 mass% Ti concentration and 0.0220-0.0270 mass% Al concentration. SOLUTION: In the method for producing the high-Si steel comprising, by mass, 3.0-3.5% Si, ≤0.020% S, ≤0.020% Ti, and 0.0220-0.0270% Al, when tapping off molten steel after decarburization and refining in a converter from the converter into a ladle, Si-source is added to the molten steel in the ladle and also, CaO-source and Al 2 O 3 -source are added thereto, and the slag-composition after secondary refining in a vacuum-degassing facility thereafter, is controlled so as to be in a range satisfying formula (1): 1.0≤(slag basicity)≤2.0, formula (2) (mass%TiO 2 )≤0.2/(slag basicity), and formula (3): 65×(slag basicity) -2.9 ≤(mass% Al 2 O 3 )≤180×(slag basicity) -3.4 . COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种具有≤0.020质量％S浓度，≤0.020质量％Ti浓度和0.0220-0.0270质量％Al浓度的高Si钢的方法。解决方案：在高Si钢的制造方法中，以质量计含有3.0-3.5％的Si，≤0.020％的S，≤0.020％的Ti和0.0220-0.0270％的Al，脱碳后的钢水脱模并且在转炉中将其从转炉中精炼到钢包中，将Si源加入到钢包中的钢水中，还有CaO源和Al 2 S 3 - 将其添加到真空脱气装置中的二次精炼后的炉渣成分控制在满足式（1）的范围：1.0≤（渣碱度）≤2.0，式（2）（质量％TiO 2 SB 2）≤0.2/（渣碱度）和式（3）：65×（渣碱度） -2.9 ≤（质量％Al 2 ≤180×（渣碱度） -3.4 。版权所有（C）2011，JPO＆INPIT

12. 发明专利

JP2011005524A Method for continuously casting high carbon steel 有权
标题翻译：连续铸造高碳钢的方法
公开(公告)号：JP2011005524A
公开(公告)日：2011-01-13
申请号：JP2009151695
申请日：2009-06-26
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： ITO YOICHI , NABESHIMA SEIJI , KOMAKI MICHIYA
IPC分类号： B22D11/20 , B22D11/00 , B22D11/12 , B22D11/16 , B22D11/22
摘要： PROBLEM TO BE SOLVED: To improve the center segregation of a high carbon steel cast slab having C content of ≥0.4 mass% into the level corresponding to a strict quality level without causing any internal crack.SOLUTION: Using a continuous casting machine having a reduction strip 6 composed of a plurality of pairs of reduction rolls 7 capable of imparting a reduction force to a cast slab during casting, in continuously casting a cast slab 1 of high carbon steel having ≥0.4 mass% C content while the cast slab at the solidified-end stage is rolling-reduced by the reduction rolls, the rolling reduction is performed with a rolling reduction quantity within a range developing no internal crack by the reduction rolls in the range with a rate of solid phase 0.2-0.8 at least in the center of the cast slab. In such reduction strip, the surface of the cast slab is subjected to a forced cooling under the condition in which the surface temperature of the cast slab is lowered in the range of 60-250°C relative to the surface temperature of the cast slab on the entrance side of the reduction strip, shrinking the solidified shell of the cast slab.
摘要翻译：要解决的问题：将C含量≥0.4质量％的高碳钢铸坯的中心偏析改善到与严格的质量水平相对应的水平而不引起任何内部裂纹。解决方案：使用具有还原性的连续铸造机连续铸造具有≥0.4质量％C含量的高碳钢的铸坯1，同时在固化的铸坯上连续铸造多个成对的还原轧辊7，第一阶段通过还原辊进行轧制，在至少在中心的固相速率为0.2-0.8的范围内，通过还原辊在不产生内部裂纹的范围内的压下量进行轧制压下的铸造板。在这种还原带中，铸坯的表面在铸坯的表面温度相对于铸坯的表面温度在60〜250℃的范围内降低的条件下进行强制冷却还原带的入口侧，使铸坯的凝固壳收缩。

13. 发明专利

JP2015006695A 連続鋳造用鋳型及び鋼の連続鋳造方法有权
标题翻译：连续铸造模具和连续铸钢方法
公开(公告)号：JP2015006695A
公开(公告)日：2015-01-15
申请号：JP2014174850
申请日：2014-08-29
申请人： Jfeスチール株式会社 , Jfe Steel Corp
发明人： NABESHIMA SEIJI , IWATA NAOMICHI , ARAMAKI NORICHIKA , MIKI YUJI
IPC分类号： B22D11/04 , B22D11/059 , B22D11/108 , B22D11/20
CPC分类号： B22D11/059 , B22D11/001 , B22D11/04 , B22D11/108 , B22D11/22 , B22D27/04
摘要：【課題】凝固初期の凝固シェルの不均一冷却よる表面割れ、並びに、包晶反応を伴う中炭素鋼でのδ鉄からγ鉄への変態に起因する凝固シェル厚みの不均一による表面割れを防止できる連続鋳造用鋳型の提供。【解決手段】連続鋳造用鋳型1は、メニスカスよりも上方の任意の位置からメニスカスよりも20mm以上下方の位置までの銅鋳型内壁面の範囲に、銅の熱伝導率に対してその熱伝導率を30%以下とする金属が、円形凹溝2の内部に充填されて形成された、直径2〜20mmの複数個の低熱伝導金属充填部3を各々独立して有し、且つ、低熱伝導金属充填部での前記金属の充填厚み(H)は、前記円形凹溝の深さ以下であって前記低熱伝導金属充填部の直径(d)に対して下記の(1)式の関係を満足する。0.5≦̸H≦̸d…(1)【選択図】図2
摘要翻译：要解决的问题：提供一种连续铸造模具，其可以防止在凝固的初始阶段由于凝固壳体的不均匀冷却引起的表面裂纹，以及由异常引起的凝固壳体的厚度不均匀至γ- 铁中碳钢中的δ铁伴随着包晶反应。解决方案：连续铸造模具1独立地具有多个直径为2至20mm的低导热金属填充部分3，其中导热率相对于在铜模内周壁的范围内，从弯液面上方的任意位置到弯液面以下的位置，将铜的导热率不高于30％的热导率填充到圆形凹槽2中20mm以上。低导热金属填充部件中的金属的填充厚度（H）不大于圆形凹槽的深度，并且关于直径（d），满足以下（1）式的关系低导热金属填充件。 0.5≤H≤d...（1）。

14. 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。

15. 发明专利

JP2013238454A Cleaning degree evaluation method of steel and manufacturing method 有权
标题翻译：钢和制造方法的清洁度评估方法
公开(公告)号：JP2013238454A
公开(公告)日：2013-11-28
申请号：JP2012110595
申请日：2012-05-14
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： ISHIDA TOMOHARU , USUI YUKIO , NABESHIMA SEIJI
IPC分类号： G01N23/225
摘要： PROBLEM TO BE SOLVED: To more accurately evaluate a cleaning degree of steel.SOLUTION: A cleaning degree evaluation method of steel includes a classification step (step S1) of identifying an inclusion being present in the steel from a reflection electron image obtained by irradiating the steel with electron beams and information of characteristic X-rays, and classifying the identifying inclusion on the basis of composition information of constituent elements, and an evaluation step (step S2) of evaluating a cleaning degree of steel from a predictive maximum diameter for each classified inclusion calculated using statistics of an extreme value. Furthermore, the classification step includes a step of classifying an inclusion while using, as a threshold value, a total value of concentrations of Al, Ca and Mg among element concentrations calculated from the information of characteristic X-rays.
摘要翻译：要解决的问题：为了更准确地评价钢的清洁度。解决方案：钢的清洁度评估方法包括从通过照射钢板获得的反射电子图像来识别钢中存在的夹杂物的分级步骤（步骤S1）具有电子束的钢和特征X射线的信息，并且基于构成要素的组成信息对识别夹杂物进行分类，以及评估步骤（步骤S2），从针对每个分类的预测最大直径评估钢的清洁度包含使用极值的统计计算。此外，分级步骤包括在从特征X射线的信息计算出的元素浓度中使用Al，Ca和Mg的浓度的总计值作为阈值的情况下对包含物进行分类的步骤。

16. 发明专利

JP2013049908A Method for producing high-purity steel by electroslag remelting method 审中-公开
标题翻译：通过电镀法制备高纯度钢的方法
公开(公告)号：JP2013049908A
公开(公告)日：2013-03-14
申请号：JP2011189018
申请日：2011-08-31
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： NABESHIMA SEIJI , MATSUMOTO RYUJI
IPC分类号： C22B9/18 , C21C7/064 , C22B9/10 , C22C38/00 , C22C38/50
摘要： PROBLEM TO BE SOLVED: To propose a method for producing high-purity steel capable of simultaneously achieving extremely low sulfur and extremely low phosphorus.SOLUTION: In the method for producing high-purity steel by remelting steel by an electroslag remelting method, the steel being produced by a continuous casting method or an steel-making method, a flux added when performing the electroslag remelting and a slug upon melting are controlled to have such composition in which CaO is 20-60 mass%, AlOis 10-40 mass%, CaFis 20-60 mass%, T.Fe (iron oxide) is 1-10 mass%, and CaO/AlOis 1.0-6.0.
摘要翻译：要解决的问题：提出一种能够同时实现极低硫和极低磷的高纯度钢的制造方法。解决方案：在通过电渣重熔法重熔钢制造高纯度钢的方法中，通过连续铸造法或炼钢法制造的钢，在进行电渣重熔时添加的助熔剂和渣块控制熔融时具有CaO为20-60质量％的组成，Al 3 为10-40 质量％，CaF 2 为20〜60质量％，T.Fe（氧化铁）为1〜10质量％，CaO / Al O 3 为1.0-6.0。版权所有（C）2013，JPO＆INPIT

17. 发明专利

JP2012201934A Ladle refining apparatus and ladle refining method using the same 审中-公开
标题翻译：年份精炼装置和使用相同版本的拉链精炼方法
公开(公告)号：JP2012201934A
公开(公告)日：2012-10-22
申请号：JP2011068202
申请日：2011-03-25
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： ANDO MAKOTO , NABESHIMA SEIJI , HAYASHI TORU
IPC分类号： C21C7/072 , C21C7/00
摘要： PROBLEM TO BE SOLVED: To provide a ladle refining apparatus capable of imparting a horizontal swirling component to a flow of molten steel in a ladle without using an elaborated apparatus, and to provide a ladle refining method using the same.SOLUTION: In the ladle refining apparatus 1, a bottom-blowing plug 3 is arranged at a position away from the center O of a ladle bottom surface 1a. On a side wall 1b close to the position of the bottom-blowing plug 3, a rectifying protrusion 5 is formed along a circumference of the side wall 1b.
摘要翻译：要解决的问题：提供一种钢包精炼装置，其能够在钢包中将水平旋转部件施加到钢水流中，而不需要使用精心设备，并提供使用其的钢包精炼方法。解决方案：在钢包精炼装置1中，底吹塞3布置在远离浇包底面1a的中心O的位置。在靠近底吹塞3的位置的侧壁1b上沿着侧壁1b的圆周形成整流凸起5。版权所有（C）2013，JPO＆INPIT

18. 发明专利

JP2012177684A Method for evaluating cleanness of copper 有权
标题翻译：评估铜的清洁度的方法
公开(公告)号：JP2012177684A
公开(公告)日：2012-09-13
申请号：JP2012017353
申请日：2012-01-30
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： HAYASHI TORU , NABESHIMA SEIJI , TAKADA HAJIME
IPC分类号： G01N29/24 , G01N29/04
摘要： PROBLEM TO BE SOLVED: To provide a method for evaluating cleanness of copper by which the cleanness with high correlation with B10 life to be obtained by a rolling fatigue test is obtained, and which can be applied to measurement of copper on a line at a manufacturing site.SOLUTION: The number of inclusions with a diameter of 20 μm or more included in a surface part from the surface to 15 mm of depth of a round bar 10 made of steel is measured by one scan by using needle beam type ultrasonic test equipment. Frequencies of used ultrasonic waves are 25 MHz or more and 100 MHz or less. Cleanness of copper obtained in this way is highly correlated with rolling fatigue life (B10 life). In addition, a method for evaluating the cleanness of copper is applicable to measurement of copper on a line at a manufacturing site.
摘要翻译：要解决的问题：提供一种评价铜的清洁度的方法，通过该方法可获得通过滚动疲劳试验获得与B10寿命高相关性的清洁度，并且可以应用于线上铜的测量在制造现场。解决方案：通过使用针束式超声波测试通过一次扫描来测量包含在由钢制成的圆棒10的从表面到表面部分的深度的15mm的直径为20μm以上的夹杂物的数量设备。使用超声波的频率为25MHz以上且100MHz以下。以这种方式获得的铜的清洁度与滚动疲劳寿命（B10寿命）高度相关。此外，用于评价铜的清洁度的方法适用于在制造现场的线上的铜的测量。版权所有（C）2012，JPO＆INPIT

19. 发明专利

JP2012176436A Continuous casting method of steel 有权
标题翻译：钢的连续铸造方法
公开(公告)号：JP2012176436A
公开(公告)日：2012-09-13
申请号：JP2011286883
申请日：2011-12-27
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： HAYASHI TORU , NABESHIMA SEIJI , ISHIKAWA AYUMI , MATSUMOTO RYUJI , TAKESHITA HIROAKI
IPC分类号： B22D11/124 , B22D11/00 , B22D11/22 , C22C38/00 , C22C38/06 , C22C38/58
摘要： PROBLEM TO BE SOLVED: To provide a continuous casting method of steel preventing generation of surface crack in a vicinity of a bend-straightening point after drawing a cast slab.SOLUTION: In the continuous casting method in which molten steel is charged in a mold, and a cast slab is directly drawn from the mold, a surface layer part of the cast slab is cooled to the temperature zone below the ferrite-pearlite transformation completion temperature and exceeding the bainite transformation starting temperature in the continuously cooling transformation diagram of the molten steel immediately below the mold, and thereafter, is kept in the temperature zone below the ferrite-pearlite transformation completion temperature and exceeding the bainite transformation starting temperature before being across the cooling curve passing through the nose of the ferrite-pearlite transformation in the continuously cooling transformation diagram.
摘要翻译：要解决的问题：提供一种连续铸造方法，该方法在拉制铸坯后在弯曲矫直点附近防止产生表面裂纹。解决方案：在将铸钢装入模具中的铸钢连续铸造法中，将铸坯从模具中直接拉出，将铸坯的表层部分冷却至铁素体 - 珠光体以下的温度区在模具正下方的钢水的连续冷却变形图中超过贝氏体相变开始温度，然后保持在低于铁素体 - 珠光体相变完成温度的温度区域内，超过贝氏体相变开始温度在连续冷却转变图中穿过铁素体 - 珠光体转变的鼻子的冷却曲线。版权所有（C）2012，JPO＆INPIT

20. 发明专利

JP2010131628A Method for vibrating mold for continuous casting 有权
标题翻译：振动模具连续铸造方法
公开(公告)号：JP2010131628A
公开(公告)日：2010-06-17
申请号：JP2008309422
申请日：2008-12-04
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： ITOYAMA SEIJI , AWAJIYA HIROSHI , MURAI TAKESHI , TSUTSUMI KOICHI , NABESHIMA SEIJI
IPC分类号： B22D11/16 , B22D11/20
摘要： PROBLEM TO BE SOLVED: To provide a method for vibrating a mold for continuous casting where an index calculating the inclination angle of the claw-shaped solidified structure in the steel slab to be cast is newly assumed, based on the index, mold vibration conditions are set, thus the inclination angle of the claw-shaped solidified structure can be reduced even if the vibration waveform of the mold is any of a sine waveform or a biased sine waveform.
SOLUTION: When a mold is vibrated in a sine waveform or a biased sine waveform so as to continuously cast a steel, the vibrating conditions of the mold are set in such a manner that a characteristic value Z decided by formula (1): Z=∫
to
to+tn/2 [(Vm-Vc)/Δt]dt from the lowering speed (Vm) of the mold in a negative strip time zone of the mold vibration and the drawing velocity (Vc) of the slab reaches a value at which problems are not caused in the surface quality of a thin steel sheet product or below, wherein tn: negative strip time (sec), to: the starting time of the negative strip time zone, Δt: a clock tick (=1/f/360, sec), and t: time (sec).
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种用于连续铸造的模具的振动的方法，其中新计算计算待铸造的钢坯中的爪形凝固组织的倾斜角度的指数，基于指数，模具设定振动条件，因此即使模具的振动波形是任何正弦波形或偏置正弦波形，爪状凝固结构的倾斜角也可以降低。解决方案：当模具以正弦波形或偏置正弦波形振动以连续铸造钢时，模具的振动条件被设定为使得由公式（1）确定的特征值Z ：Z =∫至至+ tn / 2 [（Vm-Vc）/Δt] dt，来自阴极条带时区的模具的下降速度（Vm）模具振动和板坯的拉拔速度（Vc）达到在薄钢板产品的表面质量以下不会产生问题的值，其中tn：负剥离时间（秒），到：起始负带区时间Δt：时钟脉冲（= 1 / f / 360，秒）和t：时间（秒）。版权所有（C）2010，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