公开(公告)号：US20100084413A1

公开(公告)日：2010-04-08

申请号：US12593449

申请日：2007-09-26

Applicant: Toshiro Adachi ,  Akihiro Nonomura ,  Osamu Yamamoto ,  Kouki Tomimura

Inventor： Toshiro Adachi ,  Akihiro Nonomura ,  Osamu Yamamoto ,  Kouki Tomimura

IPC: B65D90/02 ,  C22C38/22 ,  C22C38/44 ,  C22C38/42 ,  C22C38/28 ,  C22C38/50 ,  C22C38/26 ,  C22C38/48 ,  C22C38/02

CPC classification number: F24H1/181 ,  C21D9/46 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/26 ,  C22C38/28 ,  F24H9/0047

Abstract: Disclosed is a ferritic stainless steel for hot-water tanks with welded structure, comprising, in terms of % by mass, at most 0.02% of C, from 0.01 to 0.30% of Si, at most 1% of Mn, at most 0.04% of P, at most 0.03% of S, from more than 21 to 26% of Cr, at most 2% of Mo, from 0.05 to 0.6% of Nb, from 0.05 to 0.4% of Ti, at most 0.025% of N, and from 0.02 to 0.3% of Al, and optionally containing at least one of at most 2%, preferably from 0.1 to 2% of Ni and at most 1%, preferably from 0.1 to 1% of Cu, with a balance of Fe and inevitable impurities.

Abstract translation: 公开了一种用于具有焊接结构的热水罐的铁素体不锈钢，其以质量％计，至多0.02％的C，0.01至0.30％的Si，至多1％的Mn，至多0.04％ 的P，最多0.03％的S，从Cr的21〜26％，Mo的至多2％，Nb的0.05〜0.6％，Ti的0.05〜0.4％，N：0.025％以下， 和0.02〜0.3％的Al，并且任选地含有至多2％，优选0.1％至2％的Ni和至多1％，优选0.1％至1％的Cu中的至少一种，余量为Fe和 不可避免的杂质。

公开(公告)号：US20100096291A1

公开(公告)日：2010-04-22

申请号：US12530294

申请日：2008-03-07

Applicant: Toshiro Adachi ,  Akihiro Nonomura ,  Osamu Yamamoto ,  Kouki Tomimura

Inventor： Toshiro Adachi ,  Akihiro Nonomura ,  Osamu Yamamoto ,  Kouki Tomimura

IPC: B65D85/00 ,  B23P11/00

CPC classification number: B23K9/0026 ,  B23K9/028 ,  B23K9/032 ,  B23K9/167 ,  B23K9/23 ,  B23K2101/12 ,  B23K2103/02 ,  B23K2103/05 ,  C22C38/06 ,  C22C38/44 ,  C22C38/48 ,  C22C38/50 ,  F24H1/181 ,  Y10T29/49826

Abstract: A hot water tank having, on the inner surface thereof, a back bead formed by TIG-welding with no back gas sealing of steel members to each other having a composition comprising, % by mass, C: at most 0.025%, Si: at most 1%, Mn: at most 1%, P: at most 0.045%, S: at most 0.01%, Ni: from 0.1 to 1%, Cr: from more than 21 to 25%, Mo: from 0.1 to 2%, Al: from 0.02 to 0.3%, N: at most 0.025%, and Cu: from 0 to 1%, and containing at least one of Ti: from 0.05 to 0.4% and Nb: from 0.05 to 0.5%, with the balance of Fe and inevitable impurities, wherein the Cr concentration in the steel basis material in the area having oxide scale soluble in an aqueous chloride solution, as formed therein in the heat-affected zone on the welded back side thereof, is at least 16% by mass in the depth region of at least 10 nm from the steel basis material/oxide scale interface.

Abstract translation: 一种热水箱，其内表面具有通过TIG焊接而形成的后胎圈，其中钢构件的背气密封彼此之间具有以质量计C：0.025％以下的组成：Si： 最多1％，Mn：1％以下，P：0.045％以下，S：0.01％以下，Ni：0.1〜1％，Cr：21〜25％，Mo：0.1〜2％ ，Al：0.02〜0.3％，N：0.025％以下，Cu：0〜1％，Ti：0.05〜0.4％，Nb：0.05〜0.5％中的至少1种，余量 的Fe和不可避免的杂质，其中在其在其背面的热影响区中形成的氧化皮可溶于氯化水溶液的区域中的钢基材料中的Cr浓度至少为16％ 在距离钢基材/氧化皮界面至少10nm的深度区域中的质量。

公开(公告)号：US09249475B2

公开(公告)日：2016-02-02

申请号：US12936794

申请日：2009-05-11

Applicant: Akinori Kawano ,  Taichirou Mizoguchi ,  Kouki Tomimura ,  Wakahiro Harada

Inventor： Akinori Kawano ,  Taichirou Mizoguchi ,  Kouki Tomimura ,  Wakahiro Harada

IPC: C21D6/00 ,  B23K35/30 ,  C21D8/02 ,  C22C38/02 ,  C22C38/04 ,  C22C38/26 ,  F28F21/08

CPC classification number: C21D6/002 ,  B23K35/302 ,  B23K35/3033 ,  B23K2103/05 ,  C21D8/0226 ,  C21D8/0236 ,  C21D8/0273 ,  C22C38/02 ,  C22C38/04 ,  C22C38/26 ,  F28F21/083 ,  Y10T428/12979

Abstract: A ferritic stainless steel suited for use as a member for heat exchangers to be brazed with Ni-based filler metal or Cu-based filler metal, comprising, on the basis of mass percent, C: 0.03% or less, Si: 3% or less, Mn: 2% or less, P: 0.05% or less, S: 0.03% or less, Cr: from 11 to 30%, Nb: from 0.15 to 0.8%, and N: 0.03% or less, wherein the balance is composed of Fe and incidental impurities, and wherein a value A determined by the following equation is 0.10 or greater: A=Nb−(C×92.9/12+N×92.9/14).

Abstract translation: 一种铁素体不锈钢，适用于作为用Ni系填充金属或Cu系填充金属钎焊的热交换器的构件，以质量％计，含有C：0.03％以下的Si：3％以下 较少，Mn：2％以下，P：0.05％以下，S：0.03％以下，Cr：11〜30％，Nb：0.15〜0.8％，N：0.03％以下， 由Fe和杂质组成，其中由下式确定的值A为0.10以上：A = Nb-（C×92.9 / 12 + N×92.9 / 14）。

公开(公告)号：US06802430B2

公开(公告)日：2004-10-12

申请号：US10397780

申请日：2003-03-26

Applicant: Kouki Tomimura ,  Yasutoshi Hideshima ,  Naoto Hiramatsu ,  Toshiro Adachi ,  Kazushi Shirayama

Inventor： Kouki Tomimura ,  Yasutoshi Hideshima ,  Naoto Hiramatsu ,  Toshiro Adachi ,  Kazushi Shirayama

IPC: B65D600

CPC classification number: C22C38/28 ,  B60K15/03 ,  C22C38/004 ,  C22C38/26 ,  C23C28/021 ,  C23C28/023 ,  C23C28/025 ,  Y10T428/12451 ,  Y10T428/12736 ,  Y10T428/12792 ,  Y10T428/12979

Abstract: A fuel tank and a fuel-filler tube, which maintain excellent corrosion-resistance over a long term even in a severely corrosive atmosphere, is made of a ferritic stainless steel sheet good of formability. The steel sheet, which has elongation of 30% or more after fracture by a uniaxial tensile test and minimum Lankford value (value-rmin) of 1.3 or more, is formed to a product shape, and paint is cathodically electrodeposited on a surface of the formed stainless steel sheet. The stainless steel sheet may be one coated with an Al or Zn plating layer. When the fuel tank or fuel-filler tube is fabricated by welding, Zn-rich paint is preferably applied to a welded part in prior to cathodic electrodeposition coating.

Abstract translation: 即使在严重的腐蚀性气氛中也能长期保持优异的耐腐蚀性的燃料箱和燃料加注管由具有良好成形性的铁素体系不锈钢板制成。 通过单轴拉伸试验，断裂后的伸长率为30％以上，钢板的最小兰克福特值（值-rmin）为1.3以上的钢板形成为产品形状，并将涂料阴极电沉积在 形成不锈钢板。 不锈钢板可以涂覆有Al或Zn镀层。 当通过焊接制造燃料箱或燃料加注管时，优选在阴极电沉积涂覆之前将Zn富集涂料施加到焊接部分。

公开(公告)号：US06764555B2

公开(公告)日：2004-07-20

申请号：US10004919

申请日：2001-12-03

Applicant: Naoto Hiramatsu ,  Kouki Tomimura ,  Hiroshi Fujimoto ,  Kenichi Morimoto

Inventor： Naoto Hiramatsu ,  Kouki Tomimura ,  Hiroshi Fujimoto ,  Kenichi Morimoto

IPC: C22C3844

CPC classification number: C22C38/001 ,  C21D6/004 ,  C21D8/0205 ,  C21D8/0236 ,  C21D2211/001 ,  C21D2211/008 ,  C22C38/34 ,  C22C38/44 ,  C22C38/58

Abstract: A high-strength austenitic stainless steel strip exhibiting excellent flatness with Vickers hardness of 400 or more has the composition comprising: C up to 0.20 mass %, Si up to 4.0 mass %, Mn up to 5.0 mass %, 4.0-12.0 mass % Ni, 12.0-20.0 mass % Cr, Mo up to 5.0 mass %, N up to 0.15 mass % and the balance being Fe except inevitable impurities having a value Md(N) in a range of 0-125 defined by the formula Md(N)=580-520C-2Si-16Mn-16Cr-23Ni-26Cu-300N-10Mo. The material has a dual-phase structure of austenite and martensite involving a reverse-transformed austenite at a ratio of 3 vol. % or more. The material is manufactured by solution-heating a steel strip having the above composition, cold-rolling the steel strip to generate a deformation-induced martensite, and then re-heating at 500-700° C. to induce a phase reversion from martensite to at least 3 vol. % austenite. The reversion effectively flattens the steel strip.

Abstract translation: 显示维氏硬度为400以上的平坦度优异的高强度奥氏体不锈钢带，其组成为：C：0.20质量％以下，Si：4.0质量％以下，Mn：5.0质量％以下，4.0-12.0质量％以下的Ni ，12.0〜20.0质量％的Cr，Mo：5.0质量％以下，N：0.15质量％以下，余量：Fe除了由Md（N）定义的0〜 ）= 580-520℃-2Si-16Mn-16Cr-23Ni-26Cu-300N-10Mo。 该材料具有奥氏体和马氏体的双相结构，其包含3体积％的反向转变奥氏体。 ％ 或者更多。 该材料通过对具有上述组成的钢带进行溶液加热来制造，冷轧钢带以产生变形诱发马氏体，然后在500-700℃下再加热以诱导从马氏体向相转变 至少3卷 ％奥氏体。 回卷有效地使钢带平坦化。

公开(公告)号：US20110033731A1

公开(公告)日：2011-02-10

申请号：US12936794

申请日：2009-05-11

Applicant: Akinori Kawano ,  Taichirou Mizoguchi ,  Kouki Tomimura ,  Wakahiro Harada

Inventor： Akinori Kawano ,  Taichirou Mizoguchi ,  Kouki Tomimura ,  Wakahiro Harada

IPC: B32B15/18 ,  C21D8/02 ,  C22C38/18 ,  C22C38/30 ,  B32B15/01

CPC classification number: C21D6/002 ,  B23K35/302 ,  B23K35/3033 ,  B23K2103/05 ,  C21D8/0226 ,  C21D8/0236 ,  C21D8/0273 ,  C22C38/02 ,  C22C38/04 ,  C22C38/26 ,  F28F21/083 ,  Y10T428/12979

Abstract: A ferritic stainless steel suited for use as a member for heat exchangers to be brazed with Ni-based filler metal or Cu-based filler metal, comprising, on the basis of mass percent, C: 0.03% or less, Si: 3% or less, Mn: 2% or less, P: 0.05% or less, S: 0.03% or less, Cr: from 11 to 30%, Nb: from 0.15 to 0.8%, and N: 0.03% or less, wherein the balance is composed of Fe and incidental impurities, and wherein a value A determined by the following equation is 0.10 or greater: A=Nb−(C×92.9/12+N×92.9/14).

Abstract translation: 一种铁素体不锈钢，适用于作为用Ni系填充金属或Cu系填充金属钎焊的热交换器的构件，以质量％计，含有C：0.03％以下的Si：3％以下 较少，Mn：2％以下，P：0.05％以下，S：0.03％以下，Cr：11〜30％，Nb：0.15〜0.8％，N：0.03％以下， 由Fe和杂质组成，其中由下式确定的值A为0.10以上：A = Nb-（C×92.9 / 12 + N×92.9 / 14）。

公开(公告)号：US20090165905A1

公开(公告)日：2009-07-02

申请号：US12396966

申请日：2009-03-03

Applicant: Yasutoshi Hideshima ,  Kouki Tomimura ,  Naoto Hiramatsu

Inventor： Yasutoshi Hideshima ,  Kouki Tomimura ,  Naoto Hiramatsu

IPC: C21D8/02 ,  C22C38/18 ,  C22C38/44

CPC classification number: C22C38/28 ,  C21D8/0405 ,  C21D8/0463 ,  C21D8/0468 ,  C21D8/0473 ,  C22C38/02 ,  C22C38/04 ,  C22C38/26

Abstract: A ferritic stainless steel sheet has a composition of C up to 0.02 mass %, Si up to 0.8 mass %, Mn up to 1.5 mass %, P up to 0.050 mass %, S up to 0.01 mass %, 8.0-35.0 mass % of Cr, N up to 0.05 mass %, 0.05-0.40 mass % of Ti and 0.10-0.50 mass % of Nb with a product of (% Ti % N) less than 0.005. Precipitates of 0.15 μm or more in particle size except TiN are distributed in a steel matrix at a rate of 5000-50000/mm2. The steel sheet is manufactured by hot-rolling a slab at a finish-temperature of 800° C. or lower, annealing the hot-rolled steel sheet at 450-1080° C., cold-rolling the hot-rolled steel sheet in accompaniment with intermediate-annealing at a temperature within a range of from (a recrystallization-finishing temperature −100° C.) to (a recrystallization-finishing temperature) and then finish-annealing the cold-rolled steel sheet at 1080° C. or lower. The ferritic stainless steel sheet is press-formed with high dimensional accuracy and excellent secondary formability due to controlled distribution of the precipitates.

Abstract translation: 铁素体系不锈钢板的组成为C：0.02质量％以下，Si：0.8质量％以下，Mn：1.5质量％以下，P：0.050质量％以下，S：0.01质量％以下，8.0〜3.0质量％ Cr，N为0.05质量％以下，Ti为0.05〜0.40质量％，Nb为0.10-0.50质量％，（％Ti％N）的产物为0.005以下。 不同于TiN的粒径为0.15μm以上的沉淀物以5000-50000 / mm2的速度分布在钢基质中。 钢板通过在800℃以下的最终温度下热轧板坯来制造，在450-1080℃下退火该热轧钢板，伴随着对该热轧钢板进行冷轧 在（再结晶精轧温度-100℃）〜（再结晶 - 终轧温度）的范围内进行中间退火，然后在1080℃以下对冷轧钢板进行最终退火 。 由于析出物的分布受控，铁素体系不锈钢板的尺寸精度高，二次成形性优异。

公开(公告)号：US07150800B2

公开(公告)日：2006-12-19

申请号：US10474990

申请日：2002-03-22

Applicant: Katsuhide Nishio ,  Masahito Sakaki ,  Yoshiyuki Umakoshi ,  Kenji Hara ,  Kouki Tomimura

Inventor： Katsuhide Nishio ,  Masahito Sakaki ,  Yoshiyuki Umakoshi ,  Kenji Hara ,  Kouki Tomimura

IPC: C21D9/40

CPC classification number: B21B5/00 ,  B21B3/02 ,  B21B37/74 ,  B21B45/004

Abstract: When a metastable austenitic stainless steel strip with a value Md(N), which is calculated from a composition, of 20–100 is ring-rolled to a steel belt, the relationship of −0.3913T+0.5650Md(N)+60.46ε≧65.87 is established among a material temperature T, an equivalent strain ε and the value Md(N). Due to the controlled rolling, a stainless steel belt for a continuously variable transmission is bestowed with fatigue properties similar or superior to those of a 18%-Ni maraging steel belt. The value Md(N) is defined by the equation of Md(N)=580−520C−2Si−16Mn−16Cr−23Ni−300N−10Mo, and the equivalent strain ε is defined by the equation of ε=√{square root over (4(1n(1−R))2/3)} (R: reduction). Furthermore, the steel belt is stabilized in its quality and profile by confining a variation ΔT of the material temperature T within a range of ±6.4° C.

Abstract translation: 当将由组合物计算得到的值为Md（N）的亚稳态奥氏体不锈钢带卷绕到钢带上时，-0.3913T + 0.5650Md（N）+60.46epsilon > = 65.87建立在材料温度T，等效应变ε和值Md（N）之间。 由于可控制的轧制，用于无级变速器的不锈钢带被赋予类似于或优于18％-Ni马氏体时效钢带的疲劳性能。 值Md（N）由Md（N）= 580-520C-2Si-16Mn-16Cr-23Ni-300N-10Mo的等式定义，等效应变ε由下式定义：ε= {平方根 （4（1-n）（1-R））2/3）}（R：还原）。 此外，通过将材料温度T的变化DeltaT限制在±6.4℃的范围内，钢带的质量和轮廓稳定。

公开(公告)号：US06488786B2

公开(公告)日：2002-12-03

申请号：US09759349

申请日：2001-01-16

Applicant: Naoto Hiramatsu ,  Kouki Tomimura ,  Seiichi Isozaki

Inventor： Naoto Hiramatsu ,  Kouki Tomimura ,  Seiichi Isozaki

IPC: C22C3832

CPC classification number: C21D6/004 ,  C21D8/0205 ,  C21D8/0436 ,  C21D8/0468 ,  C21D2211/008 ,  C22C38/001 ,  C22C38/54

Abstract: A high-strength, high-toughness martensitic stainless steel sheet has a chemical composition comprising, in mass percent, more than 0.03 to 0.15% of C, 0.2-2.0% of Si, not more than 1.0% of Mn, not more than 0.06% of P, not more than 0.006% of S, 2.0-5.0% of Ni, 14.0-17.0% of Cr, more than 0.03 to 0.10% of N, 0.0010-0.0070% of B, and the balance of Fe and unavoidable impurities and has an A value of not less than −1.8, where A value=30(C+N)−1.5Si+0.5Mn+Ni−1.3Cr+11.8. The suitability of the steel sheet as a gasket material is enhanced by producing it to include not less than 85 vol % of martensite phase and to have a spring bending elastic limit Kb0.1 after application of tensile strain of 0.1% of not less than 700 N/mm2. Edge cracking during cold rolling is inhibited by conducting cold rolling after subjecting the hot-rolled sheet to 600-800 ° C.×10 hr or less intermediate annealing to impart a steel hardness of not greater than Hv 380.

Abstract translation: 高强度，高韧性的马氏体系不锈钢板的化学成分以质量％计含有C：0.03〜0.15％，Si：0.2〜2.0％，Mn：1.0％以下，0.06以下 P的％以下，S：0.006％以下，Ni：2.0〜5.0％，Cr：14.0〜17.0％，N：0.03〜0.10％，B：0.0010〜0.0070％，Fe：不可避免的杂质 并且具有不小于-1.8的A值，其中A值= 30（C + N）-1.5Si + 0.5Mn + Ni-1.3Cr + 11.8。 钢板作为垫片材料的适用性通过将其制成包括不小于85体积％的马氏体相并且在施加不小于700的0.1％的拉伸应变之后具有弹性弯曲弹性极限Kb0.1来增强 N / mm2。 在将热轧板进行600-800℃×10小时以上的中间退火后，进行冷轧，赋予不高于Hv380的钢硬度，可以抑制冷轧时的边缘裂纹。

公开(公告)号：US20120193328A1

公开(公告)日：2012-08-02

申请号：US13435538

申请日：2012-03-30

Applicant: Toshiro ADACHI ,  Akihiro NONOMURA ,  Osamu YAMAMOTO ,  Kouki TOMIMURA

Inventor： Toshiro ADACHI ,  Akihiro NONOMURA ,  Osamu YAMAMOTO ,  Kouki TOMIMURA

IPC: B23K9/167

CPC classification number: F24H1/181 ,  C21D9/46 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/26 ,  C22C38/28 ,  F24H9/0047

Abstract: Disclosed is a ferritic stainless steel for hot-water tanks with welded structure, comprising, in terms of % by mass, at most 0.02% of C, from 0.01 to 0.30% of Si, at most 1% of Mn, at most 0.04% of P, at most 0.03% of S, from more than 21 to 26% of Cr, at most 2% of Mo, from 0.05 to 0.6% of Nb, from 0.05 to 0.4% of Ti, at most 0.025% of N, and from 0.02 to 0.3% of Al, and optionally containing at least one of at most 2%, preferably from 0.1 to 2% of Ni and at most 1%, preferably from 0.1 to 1% of Cu, with a balance of Fe and inevitable impurities.

Abstract translation: 公开了一种用于具有焊接结构的热水罐的铁素体不锈钢，其以质量％计，至多0.02％的C，0.01至0.30％的Si，至多1％的Mn，至多0.04％ 的P，最多0.03％的S，从Cr的21〜26％，Mo的至多2％，Nb的0.05〜0.6％，Ti的0.05〜0.4％，N：0.025％以下， 和0.02〜0.3％的Al，并且任选地含有至多2％，优选0.1％至2％的Ni和至多1％，优选0.1％至1％的Cu中的至少一种，余量为Fe和 不可避免的杂质。