公开(公告)号：US07806993B2

公开(公告)日：2010-10-05

申请号：US10512782

申请日：2003-06-02

申请人： Atsushi Miyazaki ,  Kenji Takao ,  Osamu Furukimi

发明人： Atsushi Miyazaki ,  Kenji Takao ,  Osamu Furukimi

IPC分类号： C22C38/22 ,  C22C38/48 ,  C21D8/04

CPC分类号： C21D8/1222 ,  C21D6/002 ,  C21D8/1233 ,  C21D9/08 ,  C21D2211/005 ,  C22C38/004 ,  C22C38/02 ,  C22C38/04 ,  C22C38/22

摘要： The present invention provides a ferritic stainless steel that has excellent strength at high temperature, oxidation resistance at high temperature, and salt corrosion resistance at high temperature and that can be used under high temperatures exceeding 900° C., and a method of producing the same.Specifically, the composition thereof is adjusted, on a % by mass basis, so as to include C: 0.02% or less; Si: 2.0% or less; Mn: 2.0% or less; Cr: from 12.0 to 40.0%; Mo: from 1.0 to 5.0%; W: more than 2.0% and 5.0% or less; wherein the total content of Mo and W: (Mo+W)≧4.3%, Nb: from 5 (C+N) to 1.0%, N: 0.02% or less, and Fe and inevitable impurities as residual.

摘要翻译： 本发明提供了一种在高温下具有优异的强度，高温下的耐氧化性和高温下的耐盐腐蚀性并且可以在高于900℃的高温下使用的铁素体不锈钢及其制造方法 。 具体而言，将其组成以质量％为基准进行调整，包括C：0.02％以下， Si：2.0％以下; Mn：2.0％以下; Cr：12.0〜40.0％ Mo：1.0〜5.0％ W：超过2.0％和5.0％以下; 其中Mo和W：（Mo + W）≥4.3％，Nb：5（C + N）至1.0％，N：0.02％以下，以及Fe和不可避免的杂质作为残留物的总含量。

公开(公告)号：US20050211348A1

公开(公告)日：2005-09-29

申请号：US10512782

申请日：2003-06-02

申请人： Atsushi Miyazaki ,  Kenji Takao ,  Osamu Furukimi

发明人： Atsushi Miyazaki ,  Kenji Takao ,  Osamu Furukimi

IPC分类号： C21D8/12 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/22 ,  C22C38/26

CPC分类号： C21D8/1222 ,  C21D6/002 ,  C21D8/1233 ,  C21D9/08 ,  C21D2211/005 ,  C22C38/004 ,  C22C38/02 ,  C22C38/04 ,  C22C38/22

摘要： The present invention provides a ferritic stainless steel that has excellent strength at high temperature, oxidation resistance at high temperature, and salt corrosion resistance at high temperature and that can be used under high temperatures exceeding 900° C., and a method of producing the same. Specifically, the composition thereof is adjusted, on a % by mass basis, so as to include C: 0.02% or less; Si: 2.0% or less; Mn: 2.0% or less; Cr: from 12.0 to 40.0%; Mo: from 1.0 to 5.0%; W: more than 2.0% and 5.0% or less; wherein the total content of Mo and W: (Mo═W)≧4.3%, Nb: from 5 (C +N) to 1.0%, N: 0.02% or less, and Fe and inevitable impurities as residual.

摘要翻译： 本发明提供了一种在高温下具有优异的强度，高温下的耐氧化性和高温下的耐盐腐蚀性并且可以在高于900℃的高温下使用的铁素体不锈钢及其制造方法 。 具体而言，将其组成以质量％为基准进行调整，包括C：0.02％以下， Si：2.0％以下; Mn：2.0％以下; Cr：12.0〜40.0％ Mo：1.0〜5.0％; W：超过2.0％和5.0％以下; 其中Mo和W：（Mo-W）> = 4.3％，Nb：5（C + N）至1.0％，N：0.02％以下，以及Fe和不可避免的杂质作为残留物的总含量。

公开(公告)号：US20090162240A1

公开(公告)日：2009-06-25

申请号：US12297091

申请日：2006-10-05

申请人： Junichiro Hirasawa ,  Takako Yamashita ,  Noriko Makiishi ,  Etsuo Hamada ,  Takumi Ujiro ,  Osamu Furukimi

发明人： Junichiro Hirasawa ,  Takako Yamashita ,  Noriko Makiishi ,  Etsuo Hamada ,  Takumi Ujiro ,  Osamu Furukimi

IPC分类号： C22C38/20 ,  C22C38/22

CPC分类号： C21D9/46 ,  C22C38/02 ,  C22C38/04 ,  C22C38/42 ,  C22C38/48 ,  C22C38/58 ,  F16D2200/0021

摘要： A brake disk including, by mass, 0.1% or less of C, 1.0% or less of Si, 2.0% or less of Mn, 10.5% to 15.0% of Cr, 2.0% or less of Ni, greater than 0.5% to 4.0% of Cu, 0.02% to 0.3% of Nb, and 0.1% or less of N and further including N, Nb, Cr. Si, Ni, Mn, Mo, and Cu, the remainder being Fe and unavoidable impurities, such that the following inequalities are satisfied: 5Cr+10Si+15Mo+30Nb−9Ni−5Mn−3Cu−225N−270C

摘要翻译： 一种制动盘，其质量分别为0.1％以下的Si，1.0％以下的Si，2.0％以下的Mn，10.5％〜15.0％的Cr，2.0％以下的Ni，大于0.5％〜4.0％ Cu％，Nb：0.02〜0.3％，N：0.1％以下，进一步含有N，Nb，Cr。 Si，Ni，Mn，Mo和Cu，其余为Fe和不可避免的杂质，使得满足以下不等式：<？in-line-formula description =“In-line formula”end =“lead”？> 5Cr + 10Si + 15Mo + 30Nb-9Ni-5Mn-3Cu-225N-270C <45（1）<？在线公式描述=“在线公式”end =“tail”？> <？in-line-formula description =“In-line Formulas”end =“lead”？> 0.03 <= {C + N-（13/93）Nb} <= 0.09（2）和<？in-line-formula description =“In-line 具有平均直径为8μm以上，硬度为32〜38HRC，具有高回火耐软化性的先前奥氏体晶粒的马氏体组织的公式“end =”tail“？>

公开(公告)号：US07396420B2

公开(公告)日：2008-07-08

申请号：US10429018

申请日：2003-05-02

申请人： Saiji Matsuoka ,  Tetsuo Shimizu ,  Kei Sakata ,  Osamu Furukimi

发明人： Saiji Matsuoka ,  Tetsuo Shimizu ,  Kei Sakata ,  Osamu Furukimi

IPC分类号： C22C38/12

CPC分类号： C22C38/16 ,  C21D1/185 ,  C21D8/0226 ,  C21D8/0236 ,  C21D8/0273 ,  C21D8/0278 ,  C21D2211/005 ,  C21D2211/008 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/12 ,  C23C2/02 ,  C23C2/06 ,  C23C2/40 ,  Y10T428/12799

摘要： The present invention provides a steel sheet having a chemical composition comprising 0.15% or less C, 2.0% or less Si, 3.0% or less Mn, P, S, A1 and N in adjusted amounts, from 0.5 to 3.0% Cu, or one or more of Cr, Mo and W in a total amount of 2.0% or less, and having a composite structure comprising ferrite and martensite having an area ratio of 2% or more. The steel sheet is in the form of a high-strength hot-rolled steel sheet, a high-strength cold-rolled steel sheet, or a hot-dip galvanized steel sheet. There is thus available a steel sheet excellent in press-formability and in strain age hardening property as represented by a ΔTS of 80 MPa or more.

摘要翻译： 本发明提供一种钢板，其特征在于，具有C：0.15％以下的Si，2.0％以下的Si，3.0％以下的Mn，P，S，Al，N，Cu：0.5〜3.0％ 或更多的Cr，Mo和W的总量为2.0％以下，并且具有包含面积比为2％以上的铁素体和马氏体的复合结构。 钢板为高强度热轧钢板，高强度冷轧钢板或热浸镀锌钢板的形式。 因此可获得如DeltaTS为80MPa以上的压制成形性和应变时效硬化性优异的钢板。

公开(公告)号：US06818074B2

公开(公告)日：2004-11-16

申请号：US10163728

申请日：2002-06-06

申请人： Saiji Matsuoka ,  Tetsuo Shimizu ,  Kei Sakata ,  Osamu Furukimi

发明人： Saiji Matsuoka ,  Tetsuo Shimizu ,  Kei Sakata ,  Osamu Furukimi

IPC分类号： C22C3802

CPC分类号： C22C38/02 ,  C21D8/0226 ,  C21D8/0236 ,  C21D8/0273 ,  C21D8/0278 ,  C22C38/04 ,  C22C38/12 ,  C22C38/16 ,  C23C2/02 ,  C23C2/28 ,  Y10T428/12799

摘要： A steel sheet composition contains appropriate amounts of C, Si, Mn, P, S, Al and N and 0.5 to 3.0% Cu. A composite structure of the steel sheet has a ferrite phase or a ferrite phase and a tempered martensite phase as a primary phase, and a secondary phase containing retained austenite in a volume ratio of not less than 1%. In place of the Cu, at least one of Mo, Cr, and W may be contained in a total amount of not more than 2.0%. This composition is useful in production of a high-ductility hot-rolled steel sheet, a high-ductility cold-rolled steel sheet and a high-ductility hot-dip galvanized steel sheet having excellent press formability and excellent stain age hardenability as represented by a &Dgr;TS of not less than 80 MPa, in which the tensile strength increases remarkably through a heat treatment at a relatively low temperature after press forming.

摘要翻译： 钢板组合物含有适量的C，Si，Mn，P，S，Al和N以及0.5〜3.0％的Cu。 钢板的复合结构具有铁素体相或铁素体相，回火马氏体相作为主相，第二相含有体积比为1％以上的残留奥氏体。 代替Cu，Mo，Cr和W中的至少一种可以含有不超过2.0％的总量。 该组合物可用于生产高延展性热轧钢板，高延展性冷轧钢板和高延展性热浸镀锌钢板，其具有优异的压制成形性和优异的耐老化淬透性，如 通过压制成形后的较低温度下的热处理，拉伸强度不大于80MPa的ΔTS值。

公开(公告)号：US06737018B2

公开(公告)日：2004-05-18

申请号：US10046158

申请日：2002-01-16

申请人： Hiroki Ota ,  Takumi Ujiro ,  Junichiro Hirasawa ,  Osamu Furukimi

发明人： Hiroki Ota ,  Takumi Ujiro ,  Junichiro Hirasawa ,  Osamu Furukimi

IPC分类号： C22C3804

CPC分类号： C22C38/002 ,  C22C38/004 ,  C22C38/44 ,  C22C38/46 ,  C22C38/52 ,  C22C38/58

摘要： A corrosion-resistant chromium steel for architectural and civil engineering structural elements, includes 0.0015 to 0.02 mass percent C, 0.0015 to 0.02 mass percent N, 0.1 to 1.0 mass percent Si, 0.1 to 3.0 mass percent Mn, more than 5 mass percent to less than 10 mass percent Cr, 0.01 to 3.0 mass percent Ni, 0.1 mass percent or less of Al, 0.05 mass percent or less of P, 0.03 mass percent or less of S, 0.01 to 1.0 mass percent Co, and the balance being Fe and incidental impurities. The steel has high long-term corrosion resistance and high weld-zone toughness. Preferably, the steel further includes 0.01 to 0.5 mass percent V and 0.001 to 0.05 mass percent W, the Cr content is in the range of more than 5 mass percent to less than 8 mass percent, and the Cr, V, and W contents are within a specified ratio.

摘要翻译： 用于建筑和土木工程结构元件的耐腐蚀铬钢包括C：0.0015〜0.02质量％，N：0.0015〜0.02质量％，Si：0.1〜1.0质量％，Mn：0.1〜3.0质量％，5质量％以下 的Cr，0.01〜3.0质量％的Ni，0.1质量％以下的Al，0.05质量％以下的P，0.03质量％以下的S，0.01〜1.0质量％的Co，余量是Fe和 附带杂质。 该钢具有较高的长期耐腐蚀性和较高的焊接区韧性。 优选钢还含有0.01〜0.5质量％的V和0.001〜0.05质量％的W，Cr含量在5质量％〜小于8质量％的范围内，Cr，V和W的含量为 在规定的比例内。

公开(公告)号：US06537394B1

公开(公告)日：2003-03-25

申请号：US09868674

申请日：2001-06-21

申请人： Kazunori Osawa ,  Kei Sakata ,  Osamu Furukimi ,  Yoshitsugu Suzuki ,  Akio Shinohara

发明人： Kazunori Osawa ,  Kei Sakata ,  Osamu Furukimi ,  Yoshitsugu Suzuki ,  Akio Shinohara

IPC分类号： C12D800

CPC分类号： C23C2/02 ,  C21D8/0226 ,  C21D8/0273 ,  C21D8/0278 ,  C21D8/0478 ,  C21D2211/005 ,  C22C38/04 ,  C22C38/08 ,  C22C38/12 ,  C22C38/14 ,  C22C38/16 ,  C23C2/28

摘要： A hot-dip galvanized high-strength steel sheet having superior workability and galvanizability containing: 0.01% to 0.20% by weight of C; 1.0% by weight or less of Si; more than 1.5% to 3.0% by weight of Mn; 0.10% by weight or less of P; 0.05% by weight or less of S; 0.10% by weight or less of Al; 0.010% by weight or less of N; 0.010% to 1.0% by weight in total of at least one element selected from the group consisting of Ti, Nb, and V; and the balance being Fe and incidental impurities; in which the steel sheet has the metal structure in which the areal rate of the ferrite phase is 50% or more, the ferrite phase has an average grain diameter of 10 &mgr;m or less, and the thickness of a band-like structure composed of the second phase satisfies the relationship Tb/T≦0.005, where Tb is the average thickness in the sheet thickness direction of the band-like structure and T is the thickness of the steel sheet, and a method for producing the same. To provide a method for producing a hot-dip galvanized high-strength steel sheet in which superior workability and high strength are obtained and moreover satisfactory galvanizability is obtained when galvanizing is performed using facilities such as a continuous galvanizing line.

摘要翻译： 一种具有优异的加工性和镀层性的热浸镀锌高强度钢板，其含有：0.01〜0.20重量％的C，1.0重量％以下的Si，1.5重量％〜3.0重量％的Mn，0.10重量％ 以下的P：0.05重量％以下，S：0.10重量％以下，Al：0.010重量％以下，N：0.010重量％以下，0.010〜1.0重量％ 由Ti，Nb和V组成的组; 余量为Fe和杂质;其中钢板具有铁素体相的面积率为50％以上的金属结构，铁素体相的平均粒径为10μm以下，厚度为 由第二相组成的带状结构满足Tb / T <0.005的关系，其中Tb是带状结构的板厚方向上的平均厚度，T是钢板的厚度， 为了生产相同。 为了提供一种能够获得优异的加工性和高强度的热镀锌高强度钢板的制造方法，并且当使用诸如连续镀锌线的设备进行镀锌时，获得了令人满意的镀锌性。

公开(公告)号：US06171412B2

公开(公告)日：2001-01-09

申请号：US09194533

申请日：1998-11-25

申请人： Saiji Matsuoka ,  Masahiko Morita ,  Osamu Furukimi ,  Takashi Obara ,  Tetsuya Kiyasu ,  Yoshio Yamazaki

发明人： Saiji Matsuoka ,  Masahiko Morita ,  Osamu Furukimi ,  Takashi Obara ,  Tetsuya Kiyasu ,  Yoshio Yamazaki

IPC分类号： C21D800

CPC分类号： C22C38/14 ,  C21D8/02 ,  C21D8/0426 ,  C21D8/0431 ,  C21D8/0436 ,  C21D8/0473 ,  C22C38/12

摘要： Disclosed are bake-hardenable sheet steel with good anti-aging property and a method for producing it. While controlling its C, P, S and N contents, the chemical composition of the sheet steel is defined to comprise not larger than 1.0% of Si, not larger than 3.0% of Mn, from 0.01 to 0.20% of Al and from 0.001 to 0.2% of Ti, in terms of % by weight. The value A (=(AIQUENCH−AI)/AIQUENCH) of the sheet steel is defined to be not smaller than 0.4 and the value AIQUENCH thereof to be not smaller than 30; or the ratio of the mean misorientation, M (degree), to the mean grain size, G (&mgr;m), M/G, of the sheet steel is defined to be not smaller than 0.8. The steel may additionally contain from 0.001 to 0.2% of Nb and/or from 0.0001 to 0.0080% of B. While controlling its Si, Mn, S, Al and N contents, the chemical composition of a steel slab is defined to comprise from 0.005 to 0.02% of C, not larger than 0.05% of P and from 0.025 to 0.19% of Nb, with satisfying the condition of 0.7×(C/12)≦Nb/93≦1.2×(C/12) (where C indicates the C content (wt. %), and Nb indicates the Nb content (wt. %)). To produce bake-hardenable sheet steel from it, the slab is heated, hot-rolled at a finishing delivery temperature of from 960 to 650° C., coiled at a temperature of from 750 to 400° C., then cold-rolled to a reduction of from 50 to 95%, and thereafter annealed for recrystallization at a temperature of from 750 to 920° C. The slab may additionally contain B and/or Ti. The invention stably produces bake-hardenable sheet steel on an industrial scale.

摘要翻译： 公开了具有良好抗老化性能的可烘烤硬化性钢板及其制造方法。 在控制其C，P，S和N含量的同时，将钢板的化学成分定义为不大于1.0％的Si，不大于Mn的3.0％，Al的0.01至0.20％和0.001至 0.2％Ti，以重量％计。 将钢板的值A（=（AIQUENCH-AI）/ AIQUENCH）定义为不小于0.4且其AIQUENCH值不小于30; 或平均取向度M（度）与平均晶粒尺寸G（mum），M / G的比值定义为不小于0.8。 钢可以另外含有0.001-0.2％的Nb和/或0.0001-0.0080％的B。在控制其Si，Mn，S，Al和N含量的同时，钢坯的化学组成定义为包含0.005 至0.02％的C，不大于0.05的P和0.025至0.19％的Nb，满足0.7x（C / 12）<= Nb / 93 <= 1.2×（C / 12）的条件（其中 C表示C含量（重量％），Nb表示Nb含量（重量％））。 为了从其制造可烘烤硬化的钢板，在960〜650℃的最终输送温度下对板坯进行加热，热轧，在750〜400℃的温度下卷取，然后冷轧至 减少50至95％，然后在750至920℃的温度下退火再结晶。板可以另外含有B和/或Ti。 本发明在工业规模上稳定地生产可烘烤硬化钢板。

公开(公告)号：US08562758B2

公开(公告)日：2013-10-22

申请号：US10587222

申请日：2005-01-27

申请人： Mitsuyuki Fujisawa ,  Yoshihiro Yazawa ,  Yasushi Kato ,  Osamu Furukimi

发明人： Mitsuyuki Fujisawa ,  Yoshihiro Yazawa ,  Yasushi Kato ,  Osamu Furukimi

IPC分类号： C22C38/38

CPC分类号： C22C38/42 ,  C22C38/001 ,  C22C38/02 ,  C22C38/58

摘要： A low Ni and high N austenitic-ferritic stainless steel is disclosed. It includes an austenitic-ferritic stainless steel having high formability and punch stretchability, crevice corrosion resistance, corrosion resistance at welded part, or excellent intergranular corrosion resistance, from a stainless steel structured by mainly austenite phase and ferrite phase, and consisting essentially of 0.2% or less C, 4% or less Si, 12% or less Mn, 0.1% or less P, 0.03% or less S, 15 to 35% Cr, 3% or less Ni, and 0.05 to 0.6% N, by mass, by adjusting the percentage of the austenite phase in a range from 10 to 85%, by volume. Furthermore, it includes an austenitic-ferritic stainless steel having higher formability by adjusting the amount of (C+N) in the austenite phase to a range from 0.16 to 2% by mass.

摘要翻译： 公开了一种低Ni和高N奥氏体 - 铁素体不锈钢。 它包括由主要由奥氏体相和铁素体相构成的不锈钢，具有高成形性和冲孔拉伸性，耐缝隙腐蚀性，焊接部位的耐腐蚀性或优异的晶间耐腐蚀性的奥氏体 - 铁素体不锈钢，并且基本上由0.2％ 或更少的C，4％以下的Si，12％以下的Mn，0.1％以下的P，0.03％以下的S，15〜35％的Cr，3％以下的Ni和0.05〜0.6％的N， 通过将奥氏体相的百分比调整为10〜85体积％的范围。 此外，通过将奥氏体相中的（C + N）的量调节至0.16〜2质量％的范围，可以提高成形性的奥氏体 - 铁素体系不锈钢。

公开(公告)号：US08357247B2

公开(公告)日：2013-01-22

申请号：US10546248

申请日：2004-04-23

申请人： Junichiro Hirasawa ,  Yoshihiro Ozaki ,  Takumi Ujiro ,  Osamu Furukimi

发明人： Junichiro Hirasawa ,  Yoshihiro Ozaki ,  Takumi Ujiro ,  Osamu Furukimi

IPC分类号： C22C38/18 ,  H01F1/00

CPC分类号： F16D65/125 ,  C22C38/001 ,  C22C38/42 ,  C22C38/48 ,  F16D2069/004 ,  F16D2200/0017 ,  F16D2200/0021 ,  F16D2250/0007

摘要： A martensitic stainless steel, having high temper softening resistance, for disc brakes is provided. The martensitic stainless steel is not seriously softened by maintaining the steel at more than 600° C. The steel has a hardness of 32 or more or a hardness of 30 or more in HRC after the steel is tempered at 650° C. for one hour or tempered at 670° C. for one hour, respectively. In particular, the martensitic stainless steel for disc brakes contains less than 0.050 mass % carbon, 1.0 mass % or less silicon, 2.0 mass % or less manganese, 0.04 mass % or less phosphorus, 0.010 mass % or less sulfur, 0.2 mass % or less aluminum, more than 11.5 mass % to 15.0 mass % chromium, 0.5 mass % to 2.0 mass % nickel, more than 0.50 mass % to 4.0 mass %. copper, more than 0.08 mass % to 0.6 mass % niobium, and less than 0.09 mass % nitrogen, the remainder being iron and unavoidable impurities. The carbon content, the nitrogen content, the niobium content, the chromium content, the silicon content, the nickel content, the manganese content, and the copper content satisfy the following inequalities (1) and (2): 0.03≦[C]+[N]−13/93×[Nb]≦0.09   (1) 5×[Cr]+10×[Si]+30×[Nb]−9×[Ni]−5×[Mn]−3×[Cu]−225×[N]−270×[C]≦40   (2).

摘要翻译： 提供了具有高回火软化阻力的马氏体不锈钢用于盘式制动器。 通过将钢保持在600℃以上，马氏体系不锈钢不会严重软化。钢在650℃回火1小时后，HRC中的硬度为32以上，硬度为30以上。 或分别在670℃回火1小时。 特别是用于盘式制动器的马氏体不锈钢含有小于0.050质量％的碳，1.0质量％以下的硅，2.0质量％以下的锰，0.04质量％以下的磷，0.010质量％以下的硫，0.2质量％或 大于11.5质量％至15.0质量％的铬，0.5质量％至2.0质量％的镍，大于0.50质量％至4.0质量％。 铜，0.08质量％〜0.6质量％的铌，小于0.09质量％的氮，余量为铁和不可避免的杂质。 碳含量，氮含量，铌含量，铬含量，硅含量，镍含量，锰含量和铜含量满足以下不等式（1）和（2）：0.03＆nlE; [C] + [N] -13 / 93×[Nb]＆nlE; 0.09（1）5×[Cr] + 10×[Si] + 30×[Nb] -9×[Ni] -5×[Mn] [Cu] -225×[N] -270×[C]＆nlE; 40（2）。