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1.发明公开
公开(公告)号：EP3202503A1
公开(公告)日：2017-08-09
申请号：EP15846348.9
申请日：2015-09-30
摘要： The present invention provides a method of manufacturing a press-formed product. The method includes: a first process of preparing a material that is long in a first direction, and when viewed in a cross-section perpendicular to the first direction, the cross-section is a hollow cross-section that is long in a second direction perpendicular to the first direction; and a second process of bending the material in a direction intersecting the second direction when viewed from the first direction, by pressing the material along the second direction.
摘要翻译： 本发明提供了一种制造压制成型产品的方法。 该方法包括：准备在第一方向上较长的材料的第一工艺，并且当在垂直于第一方向的横截面中观察时，该横截面是在第二方向上较长的中空横截面 垂直于第一方向; 以及通过沿着所述第二方向按压所述材料而在从所述第一方向观察时在与所述第二方向交叉的方向上弯曲所述材料的第二工序。
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公开(公告)号：EP3150737A1
公开(公告)日：2017-04-05
申请号：EP15800264.2
申请日：2015-05-26
CPC分类号： C21D9/46 , B21D22/20 , C21D1/18 , C21D8/0205 , C21D9/00 , C21D2211/008 , C22C38/00 , C22C38/001 , C22C38/002 , C22C38/02 , C22C38/06 , C22C38/20 , C22C38/22 , C22C38/24 , C22C38/26 , C22C38/28 , C22C38/32 , C22C38/38 , C22C38/42 , C22C38/44 , C22C38/48 , C22C38/50 , C22C38/54 , C22C38/58 , C22C38/60
摘要： The present invention provides a heat-treated steel material having strength of 1.800 GPa or more with obtaining excellent toughness and weldability. The heat-treated steel material includes a chemical composition represented by, in mass%: C: 0.05% to 0.30%; Mn: 2.0% to 10.0%; Cr: 0.01% to 1.00%; Ti: 0.010% to 0.100%; B: 0.0010% to 0.0100%; Si: 0.08% or less; P: 0.050% or less; S: 0.0500% or less; N: 0.0100% or less; Ni: 0% to 2.0%; each of Cu, Mo, and V: 0% to 1.0%; each of Al and Nb: 0% to 1.00%; and the balance: Fe and impurities. "4612 × [C] + 102 × [Mn] + 605 ≥ 1800" is satisfied where [C] denotes a C content and [Mn] denotes a Mn content. The heat-treated steel material includes a microstructure in which 90 volume% or more is formed of martensite, and a dislocation density in the martensite is equal to or more than 9.0 × 10 15 m -2 .
摘要翻译： 本发明提供具有1.800GPa或更高的强度并获得优异的韧性和可焊性的热处理钢材。 热处理钢材包含以质量％表示的化学组成：C：0.05％至0.30％; Mn：2.0〜10.0％ Cr：0.01〜1.00％ Ti：0.010％至0.100％; B：0.0010％至0.0100％; Si：0.08％以下; P：0.050％以下; S：0.0500％以下; N：0.0100％以下; Ni：0％至2.0％; Cu，Mo和V中的每一种：0％至1.0％; Al和Nb中的每一种：0％至1.00％; 余量：铁和杂质。 在[C]表示C含量，[Mn]表示Mn含量的情况下，满足“4612×[C] +102×[Mn]+605≥1800”。 所述热处理钢材包含由马氏体形成90体积％以上的组织，所述马氏体中的位错密度为9.0×1015m-2以上。
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公开(公告)号：EP3144405A1
公开(公告)日：2017-03-22
申请号：EP15793575.0
申请日：2015-05-15
CPC分类号： C21D9/46 , B22D11/001 , C21D1/18 , C21D8/0226 , C21D8/0236 , C21D8/0263 , C21D9/00 , C21D2211/002 , C21D2211/005 , C21D2211/008 , C22C38/00 , C22C38/001 , C22C38/002 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/20 , C22C38/22 , C22C38/24 , C22C38/26 , C22C38/28 , C22C38/32 , C22C38/38 , C22C38/50 , C22C38/54 , C23C2/06 , C23C2/12 , C25D3/22
摘要： A hot-formed steel sheet member having a chemical composition, consisting of, in terms of mass %, from 0.08 to 0.16% of C, 0.19% or less of Si, from 0.40 to 1.50% of Mn, 0.02% or less of P, 0.01% or less of S, from 0.01 to 1.0% of sol. Al, 0.01% or less of N, from 0.25 to 3.00% of Cr, from 0.01 to 0.05% of Ti, from 0.001 to 0.01% of B, from 0 to 0.50% of Nb, from 0 to 2.0% of Ni, from 0 to 1.0% of Cu, from 0 to 1.0% of Mo, from 0 to 1.0% of V, from 0 to 0.005% of Ca, and a reminder consisting of Fe and impurities, wherein a total volume fraction of martensite, tempered martensite, and bainite is 50% or more, and a volume fraction of ferrite is 3% or less, an average grain size of prior γ grains is 10 µm or less, and a number density of residual carbides which are present is 4 × 10 3 per mm 2 or less.
摘要翻译： 具有化学成分的热成型钢板构件，以质量％计，C 0.08〜0.16％，Si：0.19％以下，Mn：0.40〜1.50％，P：0.02％以下 ，0.01％以下的S，0.01〜1.0％的溶胶。 Al，0.01％以下的N，0.25〜3.00％的Cr，0.01〜0.05％的Ti，0.001〜0.01％的B，0〜0.50％的Nb，0〜2.0％的Ni， 0至1.0％的Cu，0至1.0％的Mo，0至1.0％的V，0至0.005％的Ca，以及由Fe和杂质组成的提醒，其中马氏体，回火马氏体的总体积分数 ，贝氏体为50％以上，铁素体的体积分率为3％以下，现有的3个晶粒的平均粒径为10μm以下，残存的碳化物的数密度为4×10 3 每mm 2以下。
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4.发明授权CURVED METALLIC MATERIAL AND PROCESS FOR PRODUCING SAME 有权GEKRÜMMTESMETALLISCHES MATERIAL UND VERFAHREN ZU SEINER HERSTELLUNG
公开(公告)号：EP2390018B1
公开(公告)日：2016-11-16
申请号：EP10733490.6
申请日：2010-01-20
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公开(公告)号：EP3342893A1
公开(公告)日：2018-07-04
申请号：EP16839248.8
申请日：2016-08-22
发明人： OKA, Masaharu , KOJIMA, Nobusato , OKADA, Tetsuya
CPC分类号： C22C38/14 , B32B15/013 , B32B15/015 , C21D6/005 , C21D6/008 , C21D8/0205 , C21D8/0226 , C21D8/0236 , C21D8/0263 , C21D8/0273 , C21D9/46 , C22C38/001 , C22C38/002 , C22C38/004 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/12 , C23C2/02 , C23C2/06 , C23C2/28 , C23C2/40
摘要： Provided is a galvannealed steel sheet having high strength and excellent deep drawability, and being further excellent in slab cracking resistance and secondary working embrittlement resistance. A base metal steel sheet of the galvannealed steel sheet according to the present invention has a chemical composition containing, in mass %: C: 0.0080% or less; Si: 0.7% or less; Mn: 1.0 to 2.5%; P: more than 0.030 to 0.048%; S: 0.025% or less; Al: 0.005 to 0.20%; N: 0.010% or less; Ti: 0.005 to 0.040%; Nb: 0.005 to 0.060%; and B: 0.0005 to 0.0030%, with the balance being Fe and impurities, the chemical composition satisfying Formula (1) to Formula (4). A galvannealed layer contains 7 to 15 mass% of Fe. 25 × P + 4 × Si ≤ 3.6 B − X 1 ≥ 0.0005 C − 12 / 93 × Nb − X 2 ≥ − 0.0035 110 × Si + 48 × Mn + 550 × P ≥ 120
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6.发明授权
公开(公告)号：EP2248927B1
公开(公告)日：2015-07-08
申请号：EP09705046.2
申请日：2009-01-26
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公开(公告)号：EP2159292B1
公开(公告)日：2018-05-30
申请号：EP08777244.8
申请日：2008-06-16
发明人： NAKAMURA, Toyomitsu , NAKATA, Masahiro , TAKEBAYASHI, Hiroshi , TOKI, Tamotsu , KOJIMA, Nobusato
IPC分类号： C21D9/00 , B21D22/20 , C21D1/18 , C21D9/46 , C22C18/00 , C22C38/00 , C22C38/58 , C23C2/06 , C23C2/26 , B21D22/26 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/22 , C22C38/28 , C22C38/32 , C22C38/38 , C21D1/673 , B21D22/02 , C23C2/28 , B32B15/01
CPC分类号： C23C2/26 , B21D22/022 , B21D22/208 , B32B15/013 , C21D1/18 , C21D1/673 , C21D9/00 , C21D9/46 , C22C18/00 , C22C38/00 , C22C38/001 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/22 , C22C38/28 , C22C38/32 , C22C38/38 , C23C2/06 , C23C2/28
摘要： The present invention provides a method for manufacturing formed article, which can inhibit damage and debonding of a coating layer at preforming and which can improve surface quality of the formed article when preforming a base material of a galvannealed steel sheet and then quenching the preform to produce a formed article. A method for manufacturing formed article comprising: a first step comprising: feeding into a first die a galvannealed steel sheet, as a material, which has a coating layer containing: 8-25 mass % of Fe, and a remnant containing Zn, Al, and impurity; and then preforming the galvannealed steel sheet such that material temperature just before preforming of the first step being within the range of 41-700 degree C, to obtain a preform; a second step of heating the preform at a temperature of A 1 transformation point or more; and a third step of quenching the heated preform from the temperature of A 1 transformation point or more to obtain a formed article.
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公开(公告)号：EP3150736A1
公开(公告)日：2017-04-05
申请号：EP15799820.4
申请日：2015-05-26
摘要： The present invention provides a heat-treated steel material having strength of 2.000 GPa or more with obtaining excellent toughness and weldability. The heat-treated steel material includes a chemical composition represented by, in mass%: C: 0.05% to 0.30%; Si: 0.50% to 5.00%; Mn: 2.0% to 10.0%; Cr: 0.01% to 1.00%; Ti: 0.010% to 0.100%; B: 0.0020% to 0.0100%; P: 0.050% or less; S: 0.0500% or less; N: 0.0100% or less; Ni: 0% to 2.0%; each of Cu, Mo, and V: 0% to 1.0%; each of A1 and Nb: 0% to 1.00%; and the balance: Fe and impurities. "4612 × [C] + 51 × [Si] + 102 × [Mn] + 605 ≥ 2000" is satisfied where [C] denotes a C content, [Si] denotes a Si content, and [Mn] denotes a Mn content. The heat-treated steel material includes a microstructure in which 90 volume% or more is formed of martensite, and a dislocation density in the martensite is equal to or more than 1.2 × 10 16 m -2 .
摘要翻译： 本发明提供具有2.000GPa或更高的强度并获得优异的韧性和可焊性的热处理钢材。 热处理钢材包含以质量％表示的化学组成：C：0.05％至0.30％; Si：0.50％至5.00％; Mn：2.0〜10.0％ Cr：0.01〜1.00％ Ti：0.010％至0.100％; B：0.0020％至0.0100％; P：0.050％以下; S：0.0500％以下; N：0.0100％以下; Ni：0％至2.0％; Cu，Mo和V中的每一种：0％至1.0％; Al和Nb中的每一种：0％至1.00％; 余量：铁和杂质。 在[C]表示C含量，[Si]表示Si含量，[Mn]表示Mn含量的情况下，满足“4612×[C] + 51×[Si] +102×[Mn]+605≥2000” 。 所述热处理钢材具有由马氏体形成90体积％以上的组织，所述马氏体中的位错密度为1.2×10 16 m -2以上。
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公开(公告)号：EP3124637A1
公开(公告)日：2017-02-01
申请号：EP15769190.8
申请日：2015-03-26
CPC分类号： C21D9/46 , B22D11/001 , C21D1/673 , C21D8/021 , C21D8/0226 , C21D8/0236 , C21D8/0263 , C21D9/48 , C22C38/00 , C22C38/001 , C22C38/002 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/20 , C22C38/22 , C22C38/24 , C22C38/26 , C22C38/28 , C22C38/32 , C22C38/48 , C22C38/50 , C22C38/54 , C23C2/02 , C23C2/06 , C23C2/12 , C23C2/40 , C25D3/22
摘要： A high-strength hot-formed steel sheet member exhibiting both a consistent hardness and delayed-fracture resistance, and is characterized in that: the high-strength hot-formed steel sheet member has a prescribed chemical composition; the degree of Mn segregation a (=[maximum Mn concentration (mass%) at the sheet center in the thickness direction]/[average Mn concentration (mass%) at a depth of 1/4 of the total thickness of the sheet from the surface]) is less than or equal to 1.6; the steel purity value as defined in JIS G 0555 (2003) is less than or equal to 0.08%; the average grain size for prior γ grains is less than or equal to 10 µm; and the number density of the residual carbides is less than or equal to 4×10 3 particles/mm 2 .
摘要翻译： 具有一致的硬度和耐断裂性的高强度热成型钢板构件，其特征在于，所述高强度热成型钢板构件具有规定的化学组成; Mn偏析度a（= [厚度方向的片材中心的最大Mn浓度（质量％）] / [厚度方向的片材的总厚度的1/4的深度的平均Mn浓度（质量％）] 表面]）小于或等于1.6; JIS G 0555（2003）中定义的钢纯度小于或等于0.08％; 以前的3个晶粒的平均晶粒尺寸小于或等于10μm; 剩余碳化物的数量密度小于或等于4×10 3颗粒/ mm 2。
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公开(公告)号：EP3006586A1
公开(公告)日：2016-04-13
申请号：EP14808254.8
申请日：2014-06-06
CPC分类号： C21D9/46 , C21D1/84 , C21D6/004 , C21D6/005 , C21D6/008 , C21D8/0273 , C21D8/0473 , C21D2211/008 , C22C38/00 , C22C38/001 , C22C38/002 , C22C38/005 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/20 , C22C38/22 , C22C38/24 , C22C38/26 , C22C38/28 , C22C38/32 , C22C38/38 , C22C38/48 , C22C38/50 , C22C38/54
摘要： A heat-treated steel material includes: a chemical composition expressed by, in mass%: C: 0.16% to 0.38%; Mn: 0.6% to 1.5%; Cr: 0.4% to 2.0%; Ti: 0.01% to 0.10%; B: 0.001% to 0.010%; Si: 0.20% or less; P: 0.05% or less; S: 0.05% or less; N: 0.01% or less; Ni: 0% to 2.0%; Cu: 0% to 1.0%; Mo: 0% to 1.0%; V: 0% to 1.0%; A1: 0% to 1.0%; Nb: 0% to 1.0%; REM: 0% to 0.1%; and the balance: Fe and impurities; and a structure expressed by: retained austenite: 1.5 volume% or less; and the balance: martensite.
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