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31. 发明专利

JP2011052280A Steel for high heat input welding and welded joint 有权
标题翻译：用于高热输入焊接和焊接接头的钢
公开(公告)号：JP2011052280A
公开(公告)日：2011-03-17
申请号：JP2009202452
申请日：2009-09-02
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： NAKAMICHI JIRO , YAMADA KATSUMI , YOKOTA TOMOYUKI , NISHIMURA KIMIHIRO
IPC分类号： C22C38/00 , C22C38/14 , C22C38/16
摘要： PROBLEM TO BE SOLVED: To provide a steel sheet for high heat input welding which is suitable for high heat input welding in which a welding heat input quantity exceeds 300 kJ/cm.
SOLUTION: The steel has a Ti-B based componential composition satisfying 0.33≤Ceq(IIW)≤0.45, preferably, containing specific amounts of C, Si, Mn, P, S, Al, Nb, Cu, Ni, Ti, N, Ca and B, and the balance Fe with inevitable impurities, wherein existing form of N in the steel satisfies inequalities of (1) to (3) when the steel is heated at an end-point temperature of ≥1,400°C, and is cooled from the end-point temperature to 800°C at a cooling rate of ≥2°C/s: inequality (1) 5≤[N]
solid ≤15; inequality (2) 0.5≤[N]
TiN /[N]
BN ≤2.5; and inequality (3) 250≤([N]-[N]
TiN )×[B]; wherein [N]
solid denotes a solid solution N content (ppm); [N] denotes an N content (ppm) in the steel; [N]
TiN denotes an N content (ppm) in TiN; [N]
BN denotes an N content (ppm) in BN; [B] denotes a B content (ppm) in the steel; and [N]
solid =[N]-[N]
pre , wherein [N]
pre denotes an N content (ppm) in precipitates.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种适用于焊接热输入量超过300kJ / cm的高热输入焊接的高热输入焊接用钢板。解决方案：钢具有满足0.33≤Ceq（IIW）≤0.45的Ti-B基组分组成，优选含有特定量的C，Si，Mn，P，S，Al，Nb，Cu，Ni，Ti ，N，Ca和B，余量为Fe与不可避免的杂质，其中钢的现有形式满足（1）至（3）的不等式，当钢在端点温度≥1,400℃下加热时，并以≥2℃/ s的冷却速度从端点温度冷却至800℃：不等式（1）5≤[N] <固体≤15; 不等式（2）0.5≤[N] TiN / [N] BN ≤2.5; 和不等式（3）250≤（[N] - [N] TiN ）×[B]; 其中[N] 固体表示固溶N含量（ppm）; [N]表示钢中的N含量（ppm） [N] TiN 表示TiN中的N含量（ppm） [N] BN 表示BN中的N含量（ppm） [B]表示钢中的B含量（ppm）和[N] 固体 = [N] - [N] 预，其中[N] SB> pre 表示沉淀物中的N含量。版权所有（C）2011，JPO＆INPIT

32. 发明专利

JP2010139394A Method for controlling quality of steel material, and method for manufacturing steel material 有权
标题翻译：钢材质量控制方法及其制造方法
公开(公告)号：JP2010139394A
公开(公告)日：2010-06-24
申请号：JP2008316462
申请日：2008-12-12
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： YAMADA KATSUMI , JODAI TETSUSHI , NORO HISATO , YOKOTA TAKESHI , ISHIDA TOMOHARU
IPC分类号： G01N33/20 , C22C38/00 , C22C38/14
摘要： PROBLEM TO BE SOLVED: To provide a method for controlling the quality of a steel material and a method for manufacturing the steel material, which appropriately control the characteristics of the steel material and prevent inappropriate materials from being shipped to a client.
SOLUTION: One or more information sets regarding the steel material are obtained by analyzing the steel which are the information regarding the composition of a deposited material and/or an interstitial material, the information of a size of the deposited material and/or the interstitial material, and the information regarding the solid solubility of an element to be noticed. Next, an analysis result, on the basis of each information obtained in the analysis step, is checked to be within or out of a prescribed range. When at least one of the information sets obtained lies outside the prescribed range, the steel material is determined as being a reject in quality with respect to its order specifications and is allotted to another order whose requirements are satisfied; and its use application is changed, or else the manufacturing conditions, or the like, are reconfigured, thereby shipping the steel material of one that satisfies the prescribed range, that is, satisfying the client-ordered appropriate range.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种控制钢材质量的方法和钢材的制造方法，其适当地控制钢材的特性并防止不适当的材料被运送到客户端。解决方案：关于钢材的一个或多个信息集是通过分析作为沉积材料和/或间隙材料的组成的信息的钢，沉积材料的尺寸的信息和/或间隙材料以及关于要注意的元素的固体溶解度的信息。接下来，基于在分析步骤中获得的每个信息的分析结果被检查在规定范围内或超出规定范围。当获得的信息集中的至少一个位于规定范围之外时，钢材被确定为质量方面相对于其订单规格的拒绝，并被分配给满足其要求的另一订单; 并且其使用应用被改变，或者制造条件等被重新配置，从而运输满足规定范围的钢材，即满足客户订购的合适范围。（C）2010，JPO＆INPIT

33. 发明专利

JP2010139341A Method for analyzing ti-based precipitate in welding part of steel member 有权
标题翻译：用于分析钢构件焊接部件中基于TI的预制件的方法
公开(公告)号：JP2010139341A
公开(公告)日：2010-06-24
申请号：JP2008315122
申请日：2008-12-11
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： NAKAMICHI JIRO , JODAI TETSUSHI , YAMADA KATSUMI
IPC分类号： G01N27/26 , C21D8/02 , C22C38/00 , C22C38/14 , G01N33/20
摘要： PROBLEM TO BE SOLVED: To provide a method capable of analyzing a Ti-based precipitate in a welding part of a steel member. SOLUTION: The method for analyzing a Ti-based precipitate in a welding part of a steel member includes the steps of sampling collecting a sample from at least one site in a welded metal part and a welding heat affected part in a steel member containing a Ti-precipitate welded or subjected to heat-treatment equivalent to welding, dissolving the sample collected using a Br-methanol solution, filtering the Br-methanol solution obtained after dissolving the sample, soaking a collecting filter after the filtration in a solution with dispersibility to recover the Ti-based precipitate separated on the collecting filter in the solution with dispersibility, and filtering the solution with dispersibility containing the Ti-based precipitate separated one or more steps with the separation filter to analyze the Ti-based precipitate recovered on a separation filter or in a filtrate. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供能够分析钢构件的焊接部中的Ti系析出物的方法。解决方案：用于分析钢构件的焊接部分中的Ti基沉淀物的方法包括以下步骤：从焊接金属部件中的至少一个位置和钢构件中的焊接热影响部分采集样品包含焊接或进行相当于焊接的热处理的Ti析出物，溶解使用Br-甲醇溶液收集的样品，过滤溶解样品后得到的Br-甲醇溶液，过滤后的收集过滤器在溶液中浸泡，分散性以回收分散在溶液中的收集过滤器上的Ti-基沉淀物，并用分离过滤器分离一个或多个步骤，用分离过滤器分离含有Ti基沉淀物的分散性的溶液，分析回收的Ti-基沉淀分离过滤器或滤液。版权所有（C）2010，JPO＆INPIT

34. 发明专利

JP2017115189A 表面外観および曲げ性に優れるＭｎ含有合金化溶融亜鉛めっき鋼板およびその製造方法有权
公开(公告)号：JP2017115189A
公开(公告)日：2017-06-29
申请号：JP2015250124
申请日：2015-12-22
申请人： Jfeスチール株式会社 , Jfe Steel Corp
发明人： MAEDA SATOSHI , MAKISUI YOICHI , SUZUKI YOSHITSUGU , YAMADA KATSUMI , KAWASAKI YOSHIYASU
IPC分类号： C23C2/06 , C21D9/46 , C22C38/00 , C22C38/06 , C22C38/60 , C23C2/28 , C23C2/40
CPC分类号： C21D9/46 , C22C38/00 , C22C38/06 , C22C38/60 , C23C2/06 , C23C2/28 , C23C2/40
摘要：【課題】めっき外観および曲げ性に優れる高強度合金化溶融亜鉛めっき鋼板およびその製造方法を提供する。【解決手段】亜鉛めっき層中には、ア)FeおよびMnを含む酸化物、イ)FeおよびMnを含む酸化物とFe酸化物、ウ)FeおよびMnを含む酸化物とMn酸化物、エ)FeおよびMnを含む酸化物とFe酸化物とMn酸化物、オ)Fe酸化物とMn酸化物のいずれかが存在し、酸化物の合計がO量で0.01〜0.100g/m2であり、酸化物を構成するMnとFeの質量%の比であるMn/Feが0.10〜10.00であり、亜鉛めっき層の表面から亜鉛めっき層全厚みの50%以内の範囲に、Fe、Mnから選ばれる少なくとも1種の酸化物が断面積分率で60%以上存在し、亜鉛めっき層直下の下地鋼板表面から5μm以内の鋼板表層部に、Fe、Mnから選ばれる少なくとも1種の酸化物がO量で0.040g/m2以下(0を含まない)存在する。【選択図】なし

35. 发明专利

JP2014141717A Cold rolled steel sheet and production method thereof 有权
标题翻译：冷轧钢板及其生产方法
公开(公告)号：JP2014141717A
公开(公告)日：2014-08-07
申请号：JP2013011757
申请日：2013-01-25
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： YAMADA KATSUMI , TAKASAKA NORIAKI , TANAKA YUJI
IPC分类号： C22C38/00 , C21D9/46 , C22C38/14
摘要： PROBLEM TO BE SOLVED: To provide a cold rolled steel sheet which is produced by utilizing precipitation strengthening of fine carbide, instead of solid-solution strengthening of Si, Mn, or the like and has a tensile strength of 590 MPa or higher and good workability.SOLUTION: A cold rolled steel sheet comprises, by mass%, C:0.07-0.12%, Si+Al:0.05-0.10%, Mn:0.15-0.45%, P:0.01-0.05%, S:0.004% or less, N:0.0045% or less, Ti:0.09-0.14% and remaining Fe and unavoidable impurities and meets the condition 2.4≤4C/Ti≤4.5, where Tiis expressed by Ti=Ti-(3.43 N+1.5S). The cold rolled steel sheet contains a ferrite phase in a volume fraction of 90-95% and cementite in a volume fraction of 5-10%. The ferrite phase consists of a recovery structure of a recrystallization ratio of 15-30%. In the ferrite phase, Ti carbide of an average length of smaller than 10 nm is precipitated in a precipitation ratio of Ti of 85% or higher.
摘要翻译：要解决的问题：为了提供通过利用细小碳化物的析出强化而制造的冷轧钢板，代替Si，Mn等的固溶强化，并且具有590MPa以上的拉伸强度和良好的加工性解决方案：冷轧钢板以质量％计含有C：0.07-0.12％，Si + Al：0.05-0.10％，Mn：0.15-0.45％，P：0.01-0.05％，S：0.004％以下，N：0.0045％以下，Ti：0.09〜0.14％，剩余的Fe和不可避免的杂质，满足条件2.4≤4C/Ti≤4.5，Ti为Ti-（3.43N + 1.5S）。冷轧钢板含有体积分数为90-95％的铁素体相，体积分数为5-10％的渗碳体。铁素体相由重结晶比为15-30％的回收结构组成。在铁素体相中，平均长度小于10nm的Ti碳化物以Ti的析出比为85％以上析出。

36. 发明专利

JP2014074649A Method for observing surface layer part of steel material and method for manufacturing steel material 审中-公开
标题翻译：用于观察钢材表面层的方法及制造钢材的方法
公开(公告)号：JP2014074649A
公开(公告)日：2014-04-24
申请号：JP2012222161
申请日：2012-10-04
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： YAMADA KATSUMI , NAGANO HIDEKI
IPC分类号： G01N23/225 , C22C38/00 , C22C38/14 , C23C28/00 , G01N1/28 , G01N1/32
摘要： PROBLEM TO BE SOLVED: To provide a method for observing a surface layer part of a steel material, which can accurately grasp three-dimensional distribution of a second phase in the surface layer part of the steel material, and to provide a steel material manufacturing method capable of suitably correcting manufacturing conditions based on observation results.SOLUTION: When observing the three-dimensional distribution of the second phase in the surface layer part of the steel material, processing for determining an observation surface in the surface layer part and then treating the observation surface by a focused ion beam so that the treated surface becomes parallel with the observation surface and processing for observing the treated observation surface by a scanning electron microscope are repeated and respective observation results are integrated to grasp the three-dimensional distribution of the second phase on the surface layer part.
摘要翻译：要解决的问题：提供一种能够精确地掌握钢材的表层部的第二相的三维分布的钢材的表层部的观察方法，提供钢材的制造方法能够基于观察结果适当地校正制造条件。解决方案：当观察钢材表层部分中的第二相的三维分布时，确定表层部分中的观察表面的处理，然后处理观察通过聚焦离子束进行表面处理，使得被处理面与观察面平行，并且通过扫描电子显微镜进行用于观察经处理的观察表面的处理，并且将各观察结果相结合以掌握第二相的三维分布表层部分。

37. 发明专利

JP2013011493A Method for preparing sample for transmission electron microscope observation 审中-公开
标题翻译：用于传输电子显微镜观察的样品制备方法
公开(公告)号：JP2013011493A
公开(公告)日：2013-01-17
申请号：JP2011143495
申请日：2011-06-28
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： YAMADA KATSUMI , SUEYOSHI HITOSHI
IPC分类号： G01N1/28 , G01N1/32
摘要： PROBLEM TO BE SOLVED: To provide a method for preparing a sample for a transmission electron microscope observation, which is suitable to dynamically observe the deformation behavior of the sample on the spot while applying an external load to the sample in a sample chamber of an ultrahigh pressure transmission electron microscope.SOLUTION: A method for preparing a sample for a transmission electron microscope observation, which is a method for preparing the sample for observation by using the transmission electron microscope, includes a polishing step for preparing a polished sample having a hole and a thin film area formed around the hole by electrolytically or chemically polishing a sample material, and a hole shape preparing step for preparing the sample having an observation object area around a circular hole by removing a part of the thin film area of the polished sample and forming the hole into the circular hole.
摘要翻译：要解决的问题：提供一种制备用于透射电子显微镜观察的样品的方法，其适用于在样品室中向样品施加外部载荷时动态观察样品在现场的变形行为的超高压透射电子显微镜。解决方案：用于透射电子显微镜观察的样品的制备方法，其是通过使用透射电子显微镜制备用于观察的样品的方法，包括：抛光步骤，用于制备具有孔和薄的通过对样品材料进行电解或化学抛光而形成在孔周围的薄膜区域，以及孔形状准备步骤，用于通过去除抛光样品的一部分薄膜区域来制备具有围绕圆形孔的观察对象区域的样品，并形成孔进入圆孔。版权所有（C）2013，JPO＆INPIT

38. 发明专利

JP2012026030A Steel pipes for oil well use excellent in sulfide stress cracking resistance, and manufacturing method of the same 有权
标题翻译：用于油田的钢管在硫应力抗裂性能方面优异，并且其制造方法
公开(公告)号：JP2012026030A
公开(公告)日：2012-02-09
申请号：JP2011117507
申请日：2011-05-26
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： TANAKA YUJI , YAMADA KATSUMI , EGUCHI KENICHIRO , ISHIGURO YASUHIDE
IPC分类号： C22C38/00 , B21B3/00 , C21D8/10 , C22C38/32 , C22C38/54
摘要： PROBLEM TO BE SOLVED: To stably provide a low-alloy steel pipe for oil well with both a high strength and a sulfide stress cracking resistance.SOLUTION: The steel pipe for oil well contains, by mass%, C in 0.18-0.25%; Si in 0.1-0.3%; Mn in 0.4-0.8%; P in 0.015% or less; S in 0.005% or less; Al in 0.01-0.1%; Cr in 0.3-0.8%; Mo in 0.5-1.0%; Nb in 0.003-0.015%; Ti in 0.002-0.05%; and B in 0.003% or less; and the balance being Fe and unavoidable impurities. The steel pipe for oil well has a tempered martensite phase as a main phase and is characterized in that the number of MC or MC included in a region of 20 μm×20 μm, having an aspect ratio of 3 or less and a longer diameter of 300 nm or more when the shape of carbide is elliptical, is 10 or less, MCis less than 1 mass%, needle-like MC is deposited in a gain and the quantity of Nb deposited as carbide with the size of 1 μm or more is less than 0.005% by mass%.
摘要翻译：要解决的问题：为了稳定地提供具有高强度和耐硫化物应力开裂性的油井的低合金钢管。
解决方案：油井钢管以质量％计含有0.18-0.25％的C; Si为0.1-0.3％; Mn在0.4-0.8％; P在0.015％以内; S在0.005％以下; Al在0.01-0.1％; Cr在0.3-0.8％; Mo为0.5-1.0％; Nb在0.003-0.015％; Ti为0.002-0.05％; B为0.003％以下; 余量为Fe和不可避免的杂质。用于油井的钢管具有回火马氏体相作为主相，其特征在于M 3 或M 2 < / SB> C，当碳化物的形状为椭圆形时，长宽比为3以下，长径为300nm以上的区域为20μm以下20μm以下，M 23 C 6 小于1质量％，针状M 2 以1μm以上的大小的碳化物沉积的Nb的量的增益小于0.005质量％。版权所有（C）2012，JPO＆INPIT

39. 发明专利

JP2010255016A Carbide dispersed steel 有权
标题翻译：碳化物分散钢
公开(公告)号：JP2010255016A
公开(公告)日：2010-11-11
申请号：JP2009102847
申请日：2009-04-21
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： YAMADA KATSUMI , TANAKA YUJI , FUNAKAWA YOSHIMASA
IPC分类号： C22C38/00 , C22C38/14
摘要： PROBLEM TO BE SOLVED: To steadily provide fine carbide dispersion by paying attention to an initial stage precipitation composition of a steel composition and MC, in an integrated precipitation to a phase-interface precipitation and base phase ferrite, with ferrite-single phase structure advantageous to securing ductility as a base. SOLUTION: A carbide dispersed steel contains, by mass%, 0.040-0.06% C, 0.0020-0.0045% N, 0.50-1.00% Mn, ≤0.50% Si+Al, 0.050-0.100% P, and contains Ti and Mo as an MC forming element in the range of 0.05-0.10% Ti and 0.09-0.40% Mo and the balance Fe with inevitable impurities. In the steel, the composition ratio (atomic ratio; Ti/Mo) of Ti and Mo constituting the MC precipitation is 0.50≤Ti/Mo≤1.20 and the size of the MC precipitation in the ferrite phase is controlled to COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：为了稳定地提供精细的碳化物分散，注意钢组合物和MC的初始沉淀组成，在相界面沉淀和基相铁素体的一体沉淀中，用铁素体单相结构有利于确保延展性作为基础。解决方案：碳化物分散钢以质量％计含有0.040-0.06％C，0.0020-0.0045％N，0.50-1.00％Mn，≤0.50％Si + Al，0.050-0.100％P，并含有Ti和 Mo为MC形成元素，范围为0.05-0.10％Ti和0.09-0.40％Mo，余量为Fe与不可避免的杂质。在钢中，构成MC沉淀的Ti和Mo的组成比（原子比; Ti / Mo）为0.50≤Ti/Mo≤1.20，铁素体相中MC析出的大小控制在<8nm。版权所有（C）2011，JPO＆INPIT

40. 发明专利

JP2010145164A Quality control method of steel product 有权
标题翻译：钢产品质量控制方法
公开(公告)号：JP2010145164A
公开(公告)日：2010-07-01
申请号：JP2008320871
申请日：2008-12-17
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： YAMADA KATSUMI , JODAI TETSUSHI , NORO HISATO , YOKOTA TAKESHI , ISHIDA TOMOHARU
IPC分类号： G01N33/20 , B65G61/00 , C21D8/00 , G05B19/418 , G06Q50/00 , G06Q50/04
CPC分类号： Y02P90/30
摘要： PROBLEM TO BE SOLVED: To provide quality control information enabling a customer to take proper countermeasures for completing a final product having necessary performance.
SOLUTION: One or more of pieces of information of a composition of a deposit and/or an inclusion, information of a size of the deposit and/or the inclusion, and information of a solid solution amount of an attention element in a steel product, are acquired by analysis. Then, at least one of analysis results based on each information acquired in an analysis step is provided to the customer as steel product quality control information, when shipping the steel product, or separately from shipping of the steel product.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供质量控制信息，使客户能够采取适当的对策来完成具有必要性能的最终产品。解决方案：一种或多种沉积物和/或包含物的组合物的信息，沉积物和/或包含物的尺寸的信息，以及在所述沉积物和/或包含物中的注意元素的固溶量的信息钢铁产品，通过分析获得。然后，当将钢产品运输或与钢产品的运输分开时，基于在分析步骤中获取的每个信息的分析结果中的至少一个作为钢产品质量控制信息被提供给客户。版权所有（C）2010，JPO＆INPIT

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