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1. 发明专利

JP2012082499A Hot-dipped steel sheet and method for producing the same 审中-公开
标题翻译：热镀锌钢板及其制造方法
公开(公告)号：JP2012082499A
公开(公告)日：2012-04-26
申请号：JP2010231696
申请日：2010-10-14
申请人： Sumitomo Metal Ind Ltd , 住友金属工業株式会社
发明人： NISHIHATA TOSHINOBU , YOKOYAMA TAKUJI
IPC分类号： C22C38/00 , C21D9/46 , C22C38/58 , C22C38/60
摘要： PROBLEM TO BE SOLVED: To provide a hot-dipped steel sheet having a stable high strength, a high yield ratio, and good ductility and stretch-flangeability, and to provide a method for producing the same.SOLUTION: The steel sheet includes a hot-dip galvanized steel sheet having a hot-dip galvanized layer on the surface of the steel sheet, wherein the steel sheet contains, by mass, 0.01 to 0.2% C, 2 to 5% Mn, 0.001 to 0.1% sol. Al, 0.05% or less P, 0.01% or less S, 0.01% or less N, and 0.01-0.5% Ti+Nb, further contains one or more selected from the group consisting of 0.5% or less Si, 1% or less Cr, 1% or less Cu, 1% or less Ni, 0.5% or less V, 0.5% or less Mo, 0.5% or less W, 0.5% or less Zr, 0.5% or less Ta, and 0.5% or less Hf, and has a chemical composition in which C* specified by a specific formula is 0.001-0.2.
摘要翻译：要解决的问题：提供具有稳定的高强度，高屈服比，良好的延展性和拉伸凸缘性的热浸镀锌钢板，并提供其制造方法。钢板包括在钢板表面具有热浸镀锌层的热浸镀锌钢板，其中钢板以质量计含有0.01〜0.2％的C，2〜5％ Mn，0.001〜0.1％溶胶。 Al，0.05％以下的P，0.01％以下的S，0.01％以下的N和0.01-0.5％的Ti + Nb，还含有选自0.5％以下的Si，1％以下的一种以上 Cr，1％以下的Cu，1％以下的Ni，0.5％以下的V，0.5％以下的Mo，0.5％以下的W，0.5％以下的Zr，0.5％以下的Ta，0.5％以下的Hf ，具有由特定式表示的C *为0.001-0.2的化学组成。版权所有（C）2012，JPO＆INPIT

2. 发明专利

JP2007154257A Tailored blank material for hot press, hot press member and its production method 有权
标题翻译：热压床，热压成型机及其生产方法的定制空白材料
公开(公告)号：JP2007154257A
公开(公告)日：2007-06-21
申请号：JP2005350787
申请日：2005-12-05
申请人： Sumitomo Metal Ind Ltd , 住友金属工業株式会社
发明人： NISHIHATA TOSHINOBU , TAIYAMA MASANORI
IPC分类号： C22C38/00 , C21D1/18 , C21D9/00 , C22C38/60
摘要： PROBLEM TO BE SOLVED: To provide a tailored blank material for a hot press in which, when a hot press is applied to a tailored blank material, a laser weld zone or mash seam weld zone is sufficient hardened, thus the phenomenon that the hardenability of the weld zone is made lower than that of the steel sheets to be welded can be actually solved, and to provide a hot-pressed member in which the weld zone is sufficiently hardened by subjecting the tailored blank material for a hot press to a hot press.
SOLUTION: The tailored blank material for a hot press is provided with a laser weld zone or a mash seam weld zone having an oxygen content of ≤0.005%, and a plurality of steel sheets joined by the weld zone have a steel composition comprising 0.08 to 0.45% C, ≤0.5% Si, 0.5 to 3.0% Mn+Cr, ≤0.05% P, ≤0.05% S, ≤1% Al, ≤0.01% N, and the balance Fe with impurities.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于热压机的定制坯料，其中当将热压机应用于定制的坯料时，激光焊接区域或压薄缝焊缝区域被充分硬化，因此现象可以实际解决焊接区域的淬火性低于要焊接的钢板的淬火性，并且提供一种热压部件，其中通过将定制的坯料经受热压而使焊接区域充分硬化一个热门新闻。解决方案：用于热压机的定制坯料设置有氧含量≤0.005％的激光焊接区域或压薄缝焊缝区域，并且由焊接区域接合的多个钢板具有钢组合物包括0.08〜0.45％C，≤0.5％Si，0.5〜3.0％Mn + Cr，≤0.05％P，≤0.05％S，≤1％Al，≤0.01％N，余量为Fe与杂质。版权所有（C）2007，JPO＆INPIT

3. 发明专利

JP2006037141A Steel sheet for heat treatment having excellent liquid metal brittleness resistance 有权
标题翻译：具有优异液体金属耐腐蚀性的热处理钢板
公开(公告)号：JP2006037141A
公开(公告)日：2006-02-09
申请号：JP2004215893
申请日：2004-07-23
申请人： Sumitomo Metal Ind Ltd , 住友金属工業株式会社
发明人： NISHIHATA TOSHINOBU
IPC分类号： C22C38/00 , C21D9/46 , C22C38/06 , C22C38/38 , C23C2/06 , C23C2/28
摘要： PROBLEM TO BE SOLVED: To prevent occurrence of cracks caused by liquid metal brittleness in the surface layer of a final product member by suppressing formation of a hot dip Zn alloy at the time of hot forming.
SOLUTION: The surface layer of the steel sheet is provided with an Fe-Zn alloy comprising 13 to 80 mass% Fe and ≤0.4 mass% Al, and the coating weight of Zn is controlled to 10 to 65 g/m
2 . Further, in the composition of the steel sheet, the content of Si is controlled to ≤0.3%, P to ≤0.02%, Ti to 0.01 to 0.5%, and Nb to 0.01 to 0.5%.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：通过抑制热成型时的热浸Zn合金的形成，防止最终产品的表面层中的液态金属脆性引起的裂纹的发生。解决方案：钢板的表面层设置有Fe-Zn合金，其含有13〜80质量％的Fe和≤0.4质量％的Al，Zn的涂层重量控制在10〜65g / SP> 2 。此外，在钢板的组成中，将Si的含量控制在≤0.3％，P〜≤0.02％，Ti为0.01〜0.5％，Nb为0.01〜0.5％。版权所有（C）2006，JPO＆NCIPI

4. 发明专利

JP2012180594A Hot-press molded steel sheet member, steel sheet for hot-pressed steel sheet member, and method for producing them 有权
标题翻译：热压成型钢板，热轧钢板用钢板及其制造方法
公开(公告)号：JP2012180594A
公开(公告)日：2012-09-20
申请号：JP2012097617
申请日：2012-04-23
申请人： Sumitomo Metal Ind Ltd , 住友金属工業株式会社
发明人： NISHIHATA TOSHINOBU
IPC分类号： C22C38/00 , B21B3/02 , B21D22/20 , C21D1/18 , C21D9/00 , C21D9/46 , C22C18/04 , C22C21/10 , C22C38/58
CPC分类号： C21D9/46 , C22C38/02 , C22C38/04 , C22C38/18
摘要： PROBLEM TO BE SOLVED: To provide a hot-press molded steel sheet member exhibiting superior toughness after quenching and having a tensile strength of 1.8 GPa or above.SOLUTION: A steel sheet member has a microstructure having a prior austenite grain size of 10 μm or below and including spontaneously tempered martensite. The chemical composition of the steel sheet contains C: 0.26-0.45%, Mn+Cr: 0.5-3.0%, Nb: 0.02-1.0%, Ti in an amount satisfying the relationship: 3.42N+0.001≤Ti≤3.42N+0.5, one or more of Si: 0.5% or below, Ni: 2% or below, Cu: 1% or below, V: 1% or below and Al: 1% or below, and, if necessary, one or more of B: 0.01% or below, Nb: 1.0% or below, Mo: 1.0% or below and Ca: 0.001-0.005%. The steel sheet is hot-press molded after kept at a temperature of the Apoint or above and (the Apoint+100°C) or below for five minutes or shorter, and then quenched by cooling at a cooling rate to the Ms point of the upper critical cooling rate or above and at an average cooling rate from the Ms point to 150°C of 10-500°C/s.
摘要翻译：待解决的问题：提供一种在淬火后表现出优异的韧性并且抗张强度为1.8GPa以上的热压成型钢板构件。钢板构件具有原奥氏体晶粒尺寸为10μm以下且具有自发回火马氏体的微结构。钢板的化学成分含有C：0.26〜0.45％，Mn + Cr：0.5〜3.0％，Nb：0.02〜1.0％，Ti的含量为3.42N +0.001≤Ti≤3.42N+ 0.5 ，Si：0.5％以下，Ni：2％以下，Cu：1％以下，V：1％以下，Al：1％以下，以及如果需要，可以使用B，：0.01％以下，Nb：1.0％以下，Mo：1.0％以下，Ca：0.001-0.005％。在保持在A C3 点以上的温度下，（A C3 点）将钢板热压成型 + 100℃）以下5分钟以下，然后以冷却速度冷却至上临界冷却速度以上的Ms点，以Ms平均冷却速度从150℃减10 -500℃/秒。版权所有（C）2012，JPO＆INPIT

5. 发明专利

JP2009035793A Method for manufacturing hot pressed steel sheet member 有权
标题翻译：制造热压钢板成员的方法
公开(公告)号：JP2009035793A
公开(公告)日：2009-02-19
申请号：JP2007203160
申请日：2007-08-03
申请人： Sumitomo Metal Ind Ltd , 住友金属工業株式会社
发明人： NISHIHATA TOSHINOBU , IMAI KAZUHITO
IPC分类号： C22C38/00 , B21D22/20 , B21D24/00 , C22C38/58
摘要： PROBLEM TO BE SOLVED: To provide a method for manufacturing a hot pressed steel sheet member which has excellent delayed fracture resistance and is easy to industrially manufacture.
SOLUTION: In this method, a steel sheet having a Zn-based plating layer on the surface is used. This steel sheet has a chemical composition consisting of, by mass, 0.15 to 0.45% C, 0.5 to 3.0% Mn+Cr, further one or more among ≤0.05% P, ≤0.03% S, ≤0.5% Si, ≤2% Ni, ≤1% Cu, ≤1% V and ≤1% Al and the balance Fe with impurities; and this Zn-based plating layer has 10 to 110 g/m
2 Zn coating weight. The steel sheet is heated and hot pressed under the following conditions: heating is applied at a heating temperature not lower than the Ac
3 point and at a dew point of heating atmosphere ranging from 30 to 80°C; cooling rate at hot pressing is not lower than the upper critical cooling rate of the steel sheet. The resulting hot pressed steel sheet member has an amount of diffusible hydrogen directly after the hot pressing not larger than 0.20 ppm and a tensile strength not lower than 1.2 GPa.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：待解决的问题：提供一种制造具有优异的耐延迟断裂性且易于在工业上制造的热压钢板部件的方法。解决方案：在该方法中，使用表面具有Zn基镀层的钢板。该钢板的组成为：质量分数为0.15〜0.45％，Mn + Cr为0.5〜3.0％，P≤0.03％，S≤0.5％，Si≤2％ Ni，≤1％Cu，≤1％V和≤1％Al，余量为Fe与杂质; 该Zn系镀层的镀层重量为10〜110g / m 2。在以下条件下对钢板进行加热和热压：在不低于Ac 3 点的加热温度和在30至80℃的加热气氛的露点下进行加热; 热压时的冷却速度不低于钢板的上临界冷却速度。得到的热压钢板部件在热压后直接具有不大于0.20ppm的伸缩氢量，抗张强度不低于1.2GPa。版权所有（C）2009，JPO＆INPIT

6. 发明专利

JP2008264836A Manufacturing method of hot-pressed steel plate member 审中-公开
标题翻译：热压钢板构件的制造方法
公开(公告)号：JP2008264836A
公开(公告)日：2008-11-06
申请号：JP2007111977
申请日：2007-04-20
申请人： Sumitomo Metal Ind Ltd , 住友金属工業株式会社
发明人： NISHIHATA TOSHINOBU
IPC分类号： B21D22/20 , B21D22/26 , C21D9/00 , C21D9/46 , C22C38/00 , C22C38/58
摘要： PROBLEM TO BE SOLVED: To provide a manufacturing method of a hot-pressed steel plate member having excellent toughness.
SOLUTION: The manufacturing method includes a step of heating a steel plate having the chemical composition containing 0.15-0.45% C and 0.5-3.0% Mn+Cr to the temperature equal to or higher than the Ac
3 point, a step of taking out the steel plate heated to the temperature equal to or higher than the Ac
3 point from a heated atmosphere and feeding it into a die of a hot press without exposing the rapid cooling exceeding the air cooling, a step of executing the hot press on the steel plate fed into the die to form a hot-pressed steel plate member, and a step of cooling the steel plate in the hot press. The time of exposure of the steel plate to the cooling by the air cooling from the heating end time to the hot press starting time is set to
摘要翻译：要解决的问题：提供具有优异韧性的热压钢板构件的制造方法。解决方案：制造方法包括将具有含有0.15-0.45％C和0.5-3.0％Mn + Cr的化学组成的钢板加热至等于或高于Ac 3 < SB>点，从加热的气氛中取出加热到等于或高于Ac 3 点的温度的钢板的步骤，并将其送入热压机的模具中，而不暴露快速冷却超过空气冷却的步骤，在供给到模具中的钢板上执行热压以形成热压钢板部件的步骤以及在热压机中冷却钢板的步骤。通过从加热结束时间到热压开始时间的空气冷却将钢板暴露于冷却的时间被设定为<15秒，并且热压机中的钢板的冷却速度等于或更高高于钢板的上限关键冷却速度。版权所有（C）2009，JPO＆INPIT

7. 发明专利

JP2007154258A High strength steel member and its production method 有权
标题翻译：高强度钢构件及其生产方法
公开(公告)号：JP2007154258A
公开(公告)日：2007-06-21
申请号：JP2005350788
申请日：2005-12-05
申请人： Sumitomo Metal Ind Ltd , 住友金属工業株式会社
发明人： NISHIHATA TOSHINOBU
IPC分类号： C22C38/00 , C21D1/18 , C21D9/46 , C22C38/38 , C22C38/58
摘要： PROBLEM TO BE SOLVED: To provide a high strength steel member having excellent absorbed energy upon bending deformation and having a tensile strength of ≥780 MPa.
SOLUTION: The high strength steel member having a tensile strength of ≥780 MPa has a steel composition comprising 0.08 to 0.45% C, ≤0.5% Si, 0.5 to 3.0% Mn+Cr, ≤0.05% P, ≤0.05% S, ≤1% Al and ≤0.01% N, and, as an optional additional element(s), comprising ≤2% Ni and/or one or more kinds selected from the group consisting of ≤1% Cu, ≤0.01% B, ≤1.0% Nb, ≤1% Ti, ≤1.0% Mo and ≤1.0% V, and the balance Fe with impurities, and, in which the structural fraction of ferrite in the surface layer part is ≥80%, the internal layer part is composed of martensite with an old austenite average grain diameter of ≤25 μm, and also, the product between the central average roughness Ra of the surface and the number per 25.4 mm of the pair of each crest of ≥0.3175 μm and each valley of ≥0.3175 μm from the central line of a surface roughness curve, PPI is ≥200.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种在弯曲变形时具有优异的吸收能量并具有≥780MPa的拉伸强度的高强度钢构件。解决方案：拉伸强度≥780MPa的高强度钢构件具有含有0.08〜0.45％C，≤0.5％Si，0.5〜3.0％Mn + Cr，≤0.05％P，≤0.05％ S，≤1％Al和≤0.01％N，作为任选的附加元素，包含≤2％的Ni和/或选自由≤1％Cu，≤0.01％B组成的组中的一种或多种，≤1.0％Nb，≤1％Ti，≤1.0％Mo和≤1.0％V，余量为Fe与杂质，其中表层部分铁素体的结构分数≥80％，内层部分由奥氏体平均粒径≤25μm的马氏体组成，并且表面的中心平均粗糙度Ra与每个峰的每25.4mm的数量≥0.3175μm之间的乘积以及每个谷从表面粗糙度曲线的中心线≥0.3175μm，PPI≥200。版权所有（C）2007，JPO＆INPIT

8. 发明专利

JP2007211276A Plated steel sheet for hot-press use, its manufacturing method, and method for manufacturing hot press formed member 有权
标题翻译：用于热压机用的钢板，其制造方法和制造热压成型体的方法
公开(公告)号：JP2007211276A
公开(公告)日：2007-08-23
申请号：JP2006030878
申请日：2006-02-08
申请人： Sumitomo Metal Ind Ltd , 住友金属工業株式会社
发明人： KIKUCHI SUKEHISA , NISHIHATA TOSHINOBU
IPC分类号： C22C38/00 , C21D1/02 , C21D1/18 , C21D9/46 , C22C18/00 , C22C38/60 , C23C2/06 , C23C2/28
摘要： PROBLEM TO BE SOLVED: To provide a plated steel sheet for hot-press use which is suitable for uses, such as automobile body structural parts, undercarriage parts, chassis and further various reinforcing parts, owing to its excellent toughness in the form of a formed member after hardening and also superior hardenability and corrosion resistance.
SOLUTION: The plated steel sheet for hot-press use has a plating film on the surface of a steel sheet. The steel sheet has a steel composition consisting of 0.09 to 0.50% C, ≤2.0% Si, 0.8 to 3.5% Mn, ≤0.10% P, ≤0.05% S, ≤0.1% Al, ≤0.01% N, 0.005 to 0.20% Nb and the balance Fe with impurities and also has a steel structure consisting of, by area ratio, 30 to 97% polygonal ferrite, 0 to
摘要翻译：要解决的问题：为了提供适合用途的热压用镀覆钢板，例如汽车车身结构件，起落架部件，底盘以及其他各种增强部件，由于其具有优异的形式的韧性的硬化后的成形体，也具有优异的淬透性和耐腐蚀性。＆lt; P＆gt;解决方案：热压用镀覆钢板在钢板表面上具有镀膜。钢板具有由0.09〜0.50％C，≤2.0％Si，0.8〜3.5％Mn，≤0.10％P，≤0.05％S，≤0.1％Al，≤0.01％N，0.005〜0.20％ Nb和余量为Fe的杂质，还具有由面积比为30〜97％的多边形铁素体，0〜<20％贝氏体和平衡珠光体组成的钢结构。多边形铁素体的平均粒径为2〜25μm。此外，镀覆钢板的表面粗糙度Ra为0.4〜2.2μm。版权所有（C）2007，JPO＆INPIT

9. 发明专利

JP2006152427A Hot-pressed steel sheet member, manufacturing method therefor and steel sheet to be hot-pressed 有权
标题翻译：热压钢板，其制造方法和钢板被热压
公开(公告)号：JP2006152427A
公开(公告)日：2006-06-15
申请号：JP2005065541
申请日：2005-03-09
申请人： Sumitomo Metal Ind Ltd , 住友金属工業株式会社
发明人： NISHIHATA TOSHINOBU
IPC分类号： C22C38/00 , C21D9/46 , C22C38/58
摘要： PROBLEM TO BE SOLVED: To provide a steel sheet to be hot-pressed for manufacturing a hot-pressed member having superior toughness and a TS of 1.8 GPa or higher.
SOLUTION: The steel sheet has a metallographic structure after having been hot-pressed mainly formed of a self-tempered martensite composed of former austenite grains with sizes of 10 μm or smaller. Therefore, the steel sheet comprises 0.25-0.45% C, 0.5-3.0% Mn+Cr, further one or more elements of 0.5% or less Si, 2% or less Ni, 1% or less Cu, 1% or less V and 1% or less Al, and occasionally one or more elements of 0.01% or less B, 1.0% or less Nb, 1.0% or less Mo, 3.42N+0.001≤Ti≤3.42N+0.5, and 0.001-0.005% Ca. The manufacturing method comprises steps of: keeping the steel sheet at a temperature between an Ac
3 point and (Ac
3 point + 100°C) for five minutes or shorter; hot-pressing it; and subsequently cooling it to the Ms point at a cooling rate of the upper critical cooling rate or higher, and then to 150°C from the Ms point at an average cooling rate of 10 to 500°C/s.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：解决的问题：提供一种热压用钢板，其制造具有优异的韧性和TS为1.8GPa以上的热压部件。解决方案：钢板主要由由大于10μm或更小的前奥氏体晶粒组成的自回火马氏体形成热压后具有金相组织。因此，钢板包含0.25-0.45％C，0.5-3.0％Mn + Cr，另外一种或多种元素为0.5％或更少的Si，2％或更少的Ni，1％或更少的Cu，1％或更少的V和 1％以下的Al，偶有1种以上的B，1.0％以下的Nb，1.0％以下的Mo，3.42N +0.001≤Ti≤3.42N+ 0.5和0.001-0.005％的元素。该制造方法包括以下步骤：将钢板保持在Ac 3 点和（Ac 3 点+ 100℃）之间的温度5分钟或更短; 热压它然后以上临界冷却速度或更高的冷却速度将其冷却至Ms点，然后以10-500℃/ s的平均冷却速率从Ms点至150℃。版权所有（C）2006，JPO＆NCIPI

10. 发明专利

JP2010215954A Steel sheet for hot press, method for producing the same and method for producing steel sheet member for hot press 有权
标题翻译：热压机用钢板及其制造方法及用于制造热轧钢板的方法
公开(公告)号：JP2010215954A
公开(公告)日：2010-09-30
申请号：JP2009062655
申请日：2009-03-16
申请人： Sumitomo Metal Ind Ltd , 住友金属工業株式会社
发明人： NISHIHATA TOSHINOBU
IPC分类号： C22C38/00 , B21B3/00 , C21D9/00 , C21D9/46 , C22C38/38 , C22C38/58
摘要： PROBLEM TO BE SOLVED: To provide a steel sheet for hot press, which has proper strength and high ductility in combination, and as a result, is suitably used for machine structural components including automotive body structural components and frame dress up parts. SOLUTION: The steel sheet for hot press has a chemical composition containing 0.15 to 0.45% C, 0.5 to 3.0% Mn+Cr, ≤0.05% P, ≤0.03% S, ≤0.5% Si and ≤1% Al, has a steel structure where carbides are dispersed into ferrite, wherein the average grain diameter D (μm) of the ferrite is 3 to 13 μm, the average opening intervals λ (μm) of dispersed carbides is ≤5 μm, and D 2 is satisfied, and further has such mechanical properties that 0.2% proof stress is 310 to 400 MPa, tensile strength is ≥400 MPa, uniform elongation is ≥12% and total elongation is ≥20%. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种组合具有适当强度和高延展性的热压机用钢板，其结果适用于包括汽车车身结构部件和车架装饰部件在内的机械结构部件。解决方案：热压钢板的化学组成为：含有0.15〜0.45％的C，0.5〜3.0％的Mn + Cr，≤0.05％的P，≤0.03％的S，≤0.5％的Si和≤1％的Al，具有碳化物分散在铁素体中的钢结构，铁素体的平均粒径D（μm）为3〜13μm，分散碳化物的平均开口间隔λ（μm）为≤5μm，D <90λ< SP> 2 ，进一步具有0.2％屈服应力为310〜400MPa，拉伸强度≥400MPa，均匀伸长率≥12％，总伸长率≥20％的机械性能。版权所有（C）2010，JPO＆INPIT

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