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1. 发明专利

JP2007121093A Compound sampler for sampling molten steel 有权
标题翻译：用于取样钢的化合物取样器
公开(公告)号：JP2007121093A
公开(公告)日：2007-05-17
申请号：JP2005313218
申请日：2005-10-27
申请人： Kobe Steel Ltd , Riken Kogyo Kk , リケン工業株式会社 , 株式会社神戸製鋼所
发明人： MORI HIDEO , TAKEZOE HIDETAKA , YASUDA FUMITERU
IPC分类号： G01N33/20 , G01N1/10
摘要： PROBLEM TO BE SOLVED: To rapidly and certainly sample an analyzable sample.
SOLUTION: This compound sampler 1 for sampling molten steel individually comprises: a mold 2 for sampling a disc-like sample; and a glass tube 3 for sampling a pin-like sample in a paper tube 4. In this case, the thickness D1 of the mold 2, the inner diameter R1 of the mold 2, the height H in the mold 2, the overall length L of the glass tube 3, the thickness D2 of the glass tube 3, the inner diameter R2 of the thick part 21 of the glass tube 3, the inner diameter R3 of the thin part 19 of the glass tube 3, internal volume V of the thin part 19, and the clearance S between the body of the mold 2 and the thin part 19 of the glass tube 3, are set so that the analyzable sample is rapidly and certainly sampled.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：快速而可靠地对可分析样品进行样品。解决方案：用于钢水取样的复合取样器1包括：用于对盘状样品进行取样的模具2; 以及用于对纸管4中的针状样品进行取样的玻璃管3.在这种情况下，模具2的厚度D1，模具2的内径R1，模具2中的高度H，总长度 L，玻璃管3的厚度D2，玻璃管3的厚部21的内径R2，玻璃管3的薄部19的内径R3，内部容积V 薄部19和模具2的主体与玻璃管3的薄部19之间的间隙S被设定为使得可分析样品快速且可靠地取样。版权所有（C）2007，JPO＆INPIT

2. 发明专利

JPH0533029A METHOD FOR DECIDING CHARGING QUANTITY OF MAIN RAW MATERIAL IN CONVERTER OPERATION 失效
公开(公告)号：JPH0533029A
公开(公告)日：1993-02-09
申请号：JP21447891
申请日：1991-07-30
申请人： KOBE STEEL LTD
发明人： TAKEZOE HIDETAKA , KATSUTA JUNICHIRO
IPC分类号： C21C5/28
摘要： PURPOSE:To provide steelmaking planning method so as to enable unevenness of steel tapping quantity as little as possible, particularly, deciding method for main raw material charging quantity. CONSTITUTION:Oxide iron series cooling material planning quantity and the aimed steel tapping quantity in converter operation are decided as the setting values and also, heat balancing equation and material balancing equation in a converter operation, adopting molten iron temp. and molten iron chemical components assumed from the actual result in molten iron pre-treatment as the already known values are set to solve simultaneous equation composed of these. Further, under consideration of the difference between the aimed steel tapping quantity and the actual steel tapping quantity, the molten iron charging quantity and scrap charging quantity in the following heat, are decided.

3. 发明专利

JPH0442451B2 失效
公开(公告)号：JPH0442451B2
公开(公告)日：1992-07-13
申请号：JP23196789
申请日：1989-09-07
申请人： KOBE STEEL LTD
发明人： TSUBONE IWAO , SAITO TADASHI , YAMANA HISASHI , MAEDA SHINICHI , TAKEZOE HIDETAKA , OGAWA NAOTERU
IPC分类号： C21C5/28

4. 发明专利

JPH0266108A METHOD FOR CONTROLLING BLOWING IN CONVERTER 失效
公开(公告)号：JPH0266108A
公开(公告)日：1990-03-06
申请号：JP21726088
申请日：1988-08-30
申请人： KOBE STEEL LTD
发明人： TSUBONE ITSUKI , YAMANA HISASHI , TAKEZOE HIDETAKA , MAEDA SHINICHI
IPC分类号： C21C5/28 , C21C5/30 , C21C5/35 , C21C5/46
摘要： PURPOSE:To drastically reduce incidence of slopping and to execute stable converter blowing by adjusting graphite adding quantity and bottom blowing gas quantity based on foaming height assuming from a load measured value of a top blowing lance received from foaming slag at the time of converter blowing to a high carbon steel. CONSTITUTION:At the time of the converter blowing with the combined blowing, particularly in the time, when slag-making mainly progresses from medium period to latter period, the load received from the foaming slag is measured. Then, addition of the graphite is executed based on the foaming height from this loaded value and effect of the bubble broken effect caused by gas generation and effect of lowering FeO in the slag are displayed. Further, the bottom blowing gas flowing rate is adjusted together with the above. By this method, the slopping in the converter is restricted.

5. 发明专利

JPH01123014A METHOD FOR SETTLING ON PRETREATING PLAN IN MOLTEN IRON 失效
公开(公告)号：JPH01123014A
公开(公告)日：1989-05-16
申请号：JP27871387
申请日：1987-11-04
申请人： KOBE STEEL LTD
发明人： MATSUI HIDEO , KIMURA MASAYASU , TAKEZOE HIDETAKA , TAMURA TERUBUMI , ICHIKI KUNIYOSHI , NEZU JUNICHI
IPC分类号： C21C1/00
摘要： PURPOSE:To prevent excess refining of molten iron, to prevent waste use of treating agent for pre-refining and to reduce consumption of carbonic material for heat compensation in a converter by premeditatedly executing pre-refining of molten iron at the time of refining for steelmaking in the converter after pre-refining the molten iron from a blast furnace. CONSTITUTION:The molten iron from the blast furnace is received into mixing furnace and pre-refinings of desiliconization, desulfurization and dephosphorization are executed and also carbon content is reduced. This pre-refined molten iron is supplied into the converter and the remained molten iron in the mixing furnace is combined with the other molten iron as the raw material for the steel having the next other specification and supplied into the converter to refine it for steelmaking. In case the contained impurities (Si, P, S) in the next molten steel specification may be higher than them in the previous molten steel specification, as the quality of the molten iron, which the previous pre-refining has been executed, comes to the excess refining, the pre-refining is premeditatedly executed to the molten iron so as not to come to the excess pre-refining under consideration of the molten steel specification for producing in the converter. The waste consumption of pre-refining agent is reduced and also the adding quantity of the carbonic material for heat consumption based on insufficiency of carbon as the heat source at the time of refining in the converter is reduced and the cost for the steelmaking refining is reduced.

6. 发明专利

JP2007290035A Method for producing steel material 有权
标题翻译：钢材生产方法
公开(公告)号：JP2007290035A
公开(公告)日：2007-11-08
申请号：JP2007080723
申请日：2007-03-27
申请人： Kobe Steel Ltd , 株式会社神戸製鋼所
发明人： NAKADA HITOSHI , TSUTSUMI KAZUYUKI , TAKEZOE HIDETAKA
IPC分类号： B22D11/128 , B22D11/00 , B22D11/124 , B22D11/18 , C22C38/00 , C22C38/04
摘要： PROBLEM TO BE SOLVED: To provide a method for producing a steel material where central segregation and a defect in microcavities can be simultaneously and surely suppressed.
SOLUTION: A slab having a prescribed carbon content and a prescribed slab thickness is continuously cast at a prescribed casting velocity Vc, at a prescribed molten metal heating degree and in a prescribed specific water content while being held by one or more pairs of rolls, so as to achieve a prescribed final product thickness. In the above, a rolling reduction starting meniscus distance Ls[m] as a distance to a point at which rolling reduction for the slab is started with the above pairs of rolls is controlled to the range in inequality (1). Further, a rolling reduction finishing meniscus distance Lf[m] as a distance to a point at which the rolling reduction to the slab is finished with the pairs of rolls is controlled to the range of inequality (2). The rolling reduction gradient in a section from the rolling reduction starting meniscus distance Ls to the rolling reduction meniscus distance Lf is controlled to 0.8 to 4.0[mm/m]: (1) (D/61)2×Vc≤Ls≤(D/58)2×Vc; (2) and Lf≥(D/52.4)2×Vc.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：解决的问题：提供一种可以同时且可靠地抑制中心偏析和微腔缺陷的钢材的制造方法。解决方案：具有规定的碳含量和规定的板坯厚度的板坯以规定的铸造速度Vc以规定的熔融金属加热度和规定的特定含水量连续铸造，同时由一对或多个卷，以达到规定的最终产品厚度。在上述中，作为与上述成对的轧辊开始轧制轧制的点的距离的压下率开始弯月面距离Ls [m]被控制在不等式（1）的范围内。此外，作为到轧辊对轧制轧制结束的点之间的距离的轧制压下加工弯月面距离Lf [m]被控制在不等式（2）的范围内。从轧制压下开始弯月面距离Ls到轧制压下弯月面距离Lf的截面中的轧制压下梯度被控制为0.8〜4.0 [mm / m]：（1）（D / 61）2×Vc≤Ls≤（D / 58）2×Vc的; （2），Lf≥（D / 52.4）2×Vc。版权所有（C）2008，JPO＆INPIT

7. 发明专利

JP2007268546A Method for producing steel material 有权
标题翻译：钢材生产方法
公开(公告)号：JP2007268546A
公开(公告)日：2007-10-18
申请号：JP2006094813
申请日：2006-03-30
申请人： Kobe Steel Ltd , 株式会社神戸製鋼所
发明人： NAKADA HITOSHI , TSUTSUMI KAZUYUKI , TAKEZOE HIDETAKA
IPC分类号： B22D11/20 , B22D11/00 , B22D11/124 , B22D11/128 , C22C38/00 , C22C38/04
摘要： PROBLEM TO BE SOLVED: To provide a method for producing a steel material capable of securely suppressing defects of microcavities.
SOLUTION: A slab having prescribed carbon content and a slab thickness is continuously cast while being held by a plurality of pairs of rolls in prescribed casting velocity Vc/molten steel heating degree/specific water content, so as to be a prescribed final product thickness. At that time, with the meniscus as a base, the rolling reduction starting meniscus distance Ls [m] as the distance to a point at which the slab is started to be subjected to rolling reduction with the above pairs of rolls is obtained by formula; Ls=(D/52)
2 ×Vc. Further, as the meniscus as a base, the rolling reduction finishing meniscus distance Lf [m] as the distance to a point at which the slab is finished to be subjected to the rolling reduction with the above pairs of rolls is obtained by formula; Lf=(D/49)
2 ×Vc. The draft X [mm] in a section from the rolling reduction starting meniscus distance Ls to the rolling reduction finishing meniscus distance Lf is controlled to a range obtained by inequality; X>0.015×D.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够可靠地抑制微腔缺陷的钢材的制造方法。解决方案：具有规定的碳含量和板坯厚度的板坯在以规定的铸造速度Vc /钢水加热度/比水含量的多对辊保持下连续铸造，以成为规定的最终产品厚度。此时，以弯液面为基础，通过公式得到与通过上述成对辊开始进行轧制压下的点的距离的压下率开始弯月面距离Ls [m] LS =（D / 52） 2 ×Vc的。此外，作为基底的弯月面，通过公式得到与通过上述成对辊对坯料进行轧制压下的到达点的轧制压下修整弯液面距离Lf [m] LF =（D / 49） 2 ×Vc的。从轧制压下开始弯月面距离Ls到轧制压下修整弯月面距离Lf的截面中的牵伸X [mm]被控制到通过不等式获得的范围; X> 0.015×D。版权所有（C）2008，JPO＆INPIT

8. 发明专利

JPH0433847B2 失效
公开(公告)号：JPH0433847B2
公开(公告)日：1992-06-04
申请号：JP21726088
申请日：1988-08-30
申请人： KOBE STEEL LTD
发明人： TSUBONE ITSUKI , YAMANA HISASHI , TAKEZOE HIDETAKA , MAEDA SHINICHI
IPC分类号： C21C5/28 , C21C5/30 , C21C5/35 , C21C5/46

9. 发明专利

JPH0238508A PRODUCTION OF LOW PHOSPHOR AND SULFUR PIG IRON FOR FOUNDRY 失效
公开(公告)号：JPH0238508A
公开(公告)日：1990-02-07
申请号：JP18924888
申请日：1988-07-27
申请人： KOBE STEEL LTD
发明人： OKADA TOSHITAKE , HORI RYUICHI , FUSE KEN , TAKEZOE HIDETAKA , MATSUI YOSHIYUKI
IPC分类号： C21C1/08
摘要： PURPOSE:To stably produce a low P and S pig iron for foundry regardless of P and S levels in raw material by executing de-Si, de-P and de-S treatments in a part of the molten iron, adding Si to the remained molten iron and after that, merging both treated molten irons into one molten iron. CONSTITUTION:The molten iron having about 1/10-1/2 of the total quantity of the pig iron for foundry is received into a torpedo ladle car, etc., and de-Si and de-P, de-S treatments are executed. Si content adjusting agent of Fe-Si, etc., is added to the remained molten iron, to increase Si content, and this molten iron is tapped into a vessel storing the above low Si, P and S molten iron to merge both molten irons. By this method, the low P and S pig iron for foundry can be easily produced.

10. 发明专利

JP2009270136A Converter-blowing method for ultra-low carbon steel using general pig iron 有权
标题翻译：使用普通钢铁的超低碳钢的转炉吹制方法
公开(公告)号：JP2009270136A
公开(公告)日：2009-11-19
申请号：JP2008119719
申请日：2008-05-01
申请人： Kobe Steel Ltd , 株式会社神戸製鋼所
发明人： MIYAMOTO YU , TAKEZOE HIDETAKA , NAKAMURA MASANOBU , SEMURA KOICHIRO
IPC分类号： C21C5/35 , C21C5/30
摘要： PROBLEM TO BE SOLVED: To surely produce a high quality ultra-low carbon steel having ≤0.010 mass% [C] and ≤0.030 mass% [P] by using the general pig iron.
SOLUTION: When the ultra-low carbon steel containing ≤0.010 mass% [C] and ≤0.030 mass% [P] is produced by using molten pig iron 2 containing ≥0.06 mass% [P], in a top-blowing, oxygen is blown so as to satisfy 0.21≤L/L
0 ≤0.24 (wherein L is a cavity depth (m); and L0 is a molten steel depth (m)), in the passing through term from the blowing start. Further, thereafter, the oxygen is blown so as to satisfy 0.26≤L/L
0 ≤0.28. In a bottom-blowing, the bottom-blowing gas is blown so as to satisfy 0.02-0.04 Nm
3 /min/ton and 0.017-0.030 Nm
3 /min/mm
2 , in the 85-95% of the passing-through term from the blowing start. Further, thereafter, the bottom-blowing gas is blown so as to satisfy 0.08-0.11 Nm
3 /min/ton and 0.060-0.080 Nm
3 /min/mm
2 .
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：通过使用普通生铁，可以肯定地生产出具有≤0.010质量％[℃]和≤0.030质量％[P]的高品质超低碳钢。
解决方案：当含有≤0.010质量％[C]和≤0.030质量％[P]的超低碳钢通过使用含有≥0.06质量％[P]的熔融生铁2产生时，在顶吹吹氧，以满足0.21≤L/ L 0 ≤0.24（其中L为腔深度（m）; L0为钢水深度（m）），在通过从吹风开始。此后，吹氧，使其满足0.26≤L/ L 0 ≤0.28。在底吹吹气中，吹送气体以满足0.02-0.04Nm 3 /分/分/吨和0.017-0.030Nm 3 / SP / min / mm 2 ，在吹风开始时的通过期限的85-95％。此后，吹送气体，以满足0.08-0.11Nm 3 / min / min和0.060-0.080Nm 3 / SP / min / mm 2 。版权所有（C）2010，JPO＆INPIT

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