公开(公告)号：US20110253271A1

公开(公告)日：2011-10-20

申请号：US12734414

申请日：2009-10-13

申请人： Tatsuya Kumagai ,  Akira Usami ,  Masaharu Oka

发明人： Tatsuya Kumagai ,  Akira Usami ,  Masaharu Oka

IPC分类号： C21D8/02 ,  C22C38/04 ,  C22C38/02 ,  C22C38/06 ,  C22C38/58 ,  C22C38/16 ,  C22C38/42 ,  C22C38/48 ,  C22C38/54 ,  C22C38/08 ,  C22C38/12

CPC分类号： C22C38/02 ,  B66C23/62 ,  C21D8/02 ,  C21D8/0205 ,  C21D8/0226 ,  C21D9/46 ,  C21D2211/008 ,  C22C38/002 ,  C22C38/04 ,  C22C38/06 ,  C22C38/08 ,  C22C38/12 ,  C22C38/16 ,  C22C38/42 ,  C22C38/48 ,  C22C38/54 ,  C22C38/58

摘要： A high-strength steel plate includes the following composition: 0.18 to 0.23 mass % of C; 0.1 to 0.5 mass % of Si; 1.0 to 2.0 mass % of Mn; 0.020 mass % or less of P; 0.010 mass % or less of S; greater than 0.5 mass % and equal to or less than 3.0 mass % of Cu, 0.25 to 2.0 mass % of Ni; 0.003 to 0.10 mass % of Nb; 0.05 to 0.15 mass % of Al; 0.0003 to 0.0030 mass % of B; 0.006 mass % or less of N; and a balance composed of Fe and inevitable impurities. A weld crack sensitivity index Pcm of the high-strength steel plate is calculated by Pcm=[C]+[Si]/30+[Mn]/20+[Cu]/20+[Ni]/60+[Cr]/20+[Mo]/15+[V]/10+5[B], and is 0.39 mass % or less. The Ac3 transformation point is equal to or less than 850° C., the percentage value of a martensite structure is equal to or greater than 90%, the yield strength is equal to or greater than 1300 MPa, and the tensile strength is equal to or greater than 1400 MPa and equal to or less than 1650 MPa. If the tensile strength is less than 1550 MPa, the prior austenite grain size number Nγ satisfies the formula Nγ≧([TS]−1400)×0.006+7.0, and if the tensile strength is equal to or greater than 1550 MPa, the prior austenite grain size number Nγ satisfies the formula Nγ≧([TS]−1550)×0.01+7.9.

摘要翻译： 高强度钢板包含以下成分：C：0.18〜0.23质量％ 0.1〜0.5质量％的Si; 1.0〜2.0质量％的Mn; 0.020质量％以下的P; 0.010质量％以下的S; 大于0.5质量％且等于或小于3.0质量％的Cu，0.25-2.0质量％的Ni; 0.003〜0.10质量％的Nb; 0.05〜0.15质量％的Al; 0.0003〜0.0030质量％ 0.006质量％以下的N; 余量由Fe和不可避免的杂质构成。 通过Pcm = [C] + [Si] / 30 + [Mn] / 20 + [Cu] / 20 + [Ni] / 60 + [Cr] /计算出高强度钢板的焊接裂纹敏感性指数Pcm， 20+ [Mo] / 15 + [V] / 10 + 5 [B]，为0.39质量％以下。 Ac 3相变点等于或小于850℃，马氏体组织的百分比值等于或大于90％，屈服强度等于或大于1300MPa，拉伸强度等于 或大于1400MPa且等于或小于1650MPa。 如果拉伸强度小于1550MPa，则奥氏体粒径Nγ满足公式Nγ≥（[TS] -1400）×0.006 + 7.0，若拉伸强度为1550MPa以上， 奥氏体晶粒数Nγ满足公式Nγ≥（[TS] -1550）×0.01 + 7.9。

公开(公告)号：US08500924B2

公开(公告)日：2013-08-06

申请号：US12734414

申请日：2009-10-13

申请人： Tatsuya Kumagai ,  Akira Usami ,  Masaharu Oka

发明人： Tatsuya Kumagai ,  Akira Usami ,  Masaharu Oka

IPC分类号： C22C38/00 ,  C22C38/08 ,  C22C38/16 ,  C22C38/12 ,  C21D8/00 ,  C21D6/00

CPC分类号： C22C38/02 ,  B66C23/62 ,  C21D8/02 ,  C21D8/0205 ,  C21D8/0226 ,  C21D9/46 ,  C21D2211/008 ,  C22C38/002 ,  C22C38/04 ,  C22C38/06 ,  C22C38/08 ,  C22C38/12 ,  C22C38/16 ,  C22C38/42 ,  C22C38/48 ,  C22C38/54 ,  C22C38/58

摘要： A high-strength steel plate includes the following composition: 0.18 to 0.23 mass % of C; 0.1 to 0.5 mass % of Si; 1.0 to 2.0 mass % of Mn; 0.020 mass % or less of P; 0.010 mass % or less of S; greater than 0.5 mass % and equal to or less than 3.0 mass % of Cu, 0.25 to 2.0 mass % of Ni; 0.003 to 0.10 mass % of Nb; 0.05 to 0.15 mass % of Al; 0.0003 to 0.0030 mass % of B; 0.006 mass % or less of N; and a balance composed of Fe and inevitable impurities. A weld crack sensitivity index Pcm of the high-strength steel plate is calculated by Pcm=[C]+[Si]/30+[Mn]/20+[Cu]/20+[Ni]/60+[Cr]/20+[Mo]/15+[V]/10+5[B], and is 0.39 mass % or less. The Ac3 transformation point is equal to or less than 850° C., the percentage value of a martensite structure is equal to or greater than 90%, the yield strength is equal to or greater than 1300 MPa, and the tensile strength is equal to or greater than 1400 MPa and equal to or less than 1650 MPa. If the tensile strength is less than 1550 MPa, the prior austenite grain size number Nγ satisfies the formula Nγ≧([TS]−1400)×0.006+7.0, and if the tensile strength is equal to or greater than 1550 MPa, the prior austenite grain size number Nγ satisfies the formula Nγ≧([TS]−1550)×0.01+7.9.

摘要翻译： 高强度钢板包含以下成分：C：0.18〜0.23质量％ 0.1〜0.5质量％的Si; 1.0〜2.0质量％的Mn; 0.020质量％以下的P; 0.010质量％以下的S; 大于0.5质量％且等于或小于3.0质量％的Cu，0.25-2.0质量％的Ni; 0.003〜0.10质量％的Nb; 0.05〜0.15质量％的Al; 0.0003〜0.0030质量％ 0.006质量％以下的N; 余量由Fe和不可避免的杂质构成。 通过Pcm = [C] + [Si] / 30 + [Mn] / 20 + [Cu] / 20 + [Ni] / 60 + [Cr] /计算出高强度钢板的焊接裂纹敏感性指数Pcm， 20+ [Mo] / 15 + [V] / 10 + 5 [B]，为0.39质量％以下。 Ac 3相变点等于或小于850℃，马氏体组织的百分比值等于或大于90％，屈服强度等于或大于1300MPa，拉伸强度等于 或大于1400MPa且等于或小于1650MPa。 如果拉伸强度小于1550MPa，则原奥氏体粒径值Ngamma满足公式Ngamma> =（[TS] -1400）×0.006 + 7.0，如果拉伸强度等于或大于1550MPa，则 前奥氏体晶粒数Ngamma满足公式Ngamma> =（[TS] -1550）×0.01 + 7.9。

公开(公告)号：US08730481B2

公开(公告)日：2014-05-20

申请号：US13363927

申请日：2012-02-01

申请人： Tatsuya Kumagai ,  Shinji Komatsuzaki

发明人： Tatsuya Kumagai ,  Shinji Komatsuzaki

IPC分类号： G01B9/02

CPC分类号： G01N21/21 ,  G01N21/23 ,  G01N2021/216

摘要： An optical ingredient-measuring apparatus is provided for measuring a concentration of an optically rotative substance. The apparatus includes a sensor main body which detects a phase difference between linear polarized light beams that propagate through an optical fiber loop in opposite directions, a circular polarized input component interposed in the middle of the optical fiber loop having first and second converters that convert the linear polarized light propagating through the optical fiber loop into left-hand and right-hand circular polarized light, and a concentration detector, installed in the sensor main body, which calculates the concentration of the substance in the sample based on the detected phase difference.

摘要翻译： 提供了用于测量光学旋转物质的浓度的光学成分测量装置。 该装置包括传感器主体，其检测在相反方向上通过光纤环路传播的线偏振光束之间的相位差;插入在光纤回路中间的圆偏振输入部件，其具有第一和第二转换器， 基于检测出的相位差计算出样品中的物质的浓度的安装在传感器主体中的浓度检测器，其中，通过光纤环路传播的左旋和右旋圆偏振光的线偏振光。

公开(公告)号：US08097099B2

公开(公告)日：2012-01-17

申请号：US11991592

申请日：2006-08-18

申请人： Naoki Saitoh ,  Tatsuya Kumagai ,  Katsumi Kurebayashi ,  Hirohide Muraoka

发明人： Naoki Saitoh ,  Tatsuya Kumagai ,  Katsumi Kurebayashi ,  Hirohide Muraoka

IPC分类号： C22C38/22 ,  C22C38/54

CPC分类号： C21D8/005 ,  C21D8/0263 ,  C22C38/002 ,  C22C38/005 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/22 ,  C22C38/24 ,  C22C38/26 ,  C22C38/28 ,  C22C38/32

摘要： The present invention provides an abrasion resistant steel having a hardness of HB400 to HB520, having little change of hardness during long term use, and superior in toughness, characterized by containing, by mass %, C: 0.21% to 0.30%, Si: 0.30 to 1.00%, Mn: 0.32 to 0.70%, P: 0.02% or less, S: 0.01% or less, Cr: 0.1 to 2.0%, Mo: 0.1 to 1.0%, B: 0.0003 to 0.0030%, Al: 0.01 to 0.1%, and N: 0.01% or less, further containing one or more of V: 0.01 to 0.1%, Nb: 0.005 to 0.05%, Ti: 0.005 to 0.03%, Ca: 0.0005 to 0.05%, Mg: 0.0005 to 0.05%, and REM: 0.001 to 0.1%, having a balance of Fe, and furthermore having an ingredient with an M value defined by the following formula (1) of −10 to 16: M=26×[Si]−40×[Mn]−3×[Cr]+36×[Mo]+63×[V]  (1)

摘要翻译： 本发明提供硬度为HB400〜HB520的耐磨钢，长期使用时的硬度变化小，韧性优异，其特征在于以质量％计含有C：0.21〜0.30％的Si：0.30 至1.00％，Mn：0.32〜0.70％，P：0.02％以下，S：0.01％以下，Cr：0.1〜2.0％，Mo：0.1〜1.0％，B：0.0003〜0.0030％，Al：0.01〜 0.1％，N：0.01％以下，进一步含有V：0.01〜0.1％，Nb：0.005〜0.05％，Ti：0.005〜0.03％，Ca：0.0005〜0.05％，Mg：0.0005〜0.05 ％和REM：0.001至0.1％，余量为Fe，并且还具有由下式（1）定义的M值为-10至16的成分：M = 26×[Si] -40×[ Mn] -3×[Cr] +36×[Mo] + 63×[V]（1）

公开(公告)号：US20100281985A1

公开(公告)日：2010-11-11

申请号：US12078807

申请日：2008-04-04

申请人： Tatsuya Kumagai ,  Wataru Ohnuki

发明人： Tatsuya Kumagai ,  Wataru Ohnuki

IPC分类号： G01H9/00

CPC分类号： G01H9/004

摘要： An optical fiber vibration sensor includes a light source, an optical receiver, an optical dividing/coupling part, a signal processing unit, and a fiber loop part made of an optical fiber. A part of an optical fiber composing the fiber loop part is installed outside a housing of a main body of the optical fiber vibration sensor and another part of the optical fiber composing the fiber loop part is installed outside the housing as a vibration detecting optical fiber.

摘要翻译： 光纤振动传感器包括光源，光接收器，光分路/耦合部分，信号处理单元和由光纤制成的光纤环路部分。 构成光纤回路部的光纤的一部分安装在光纤振动传感器的主体的壳体的外部，构成光纤回路部的光纤的另一部分安装在壳体的外部作为振动检测用光纤。

公开(公告)号：US20100139820A1

公开(公告)日：2010-06-10

申请号：US12532032

申请日：2009-01-06

申请人： Tatsuya Kumagai ,  Naoki Saitoh

发明人： Tatsuya Kumagai ,  Naoki Saitoh

IPC分类号： C21D8/02 ,  C22C38/00 ,  C22C38/02 ,  C22C38/32 ,  C22C38/22 ,  C22C38/42 ,  C22C38/44 ,  C22C38/54

CPC分类号： C22C38/02 ,  C21D6/002 ,  C21D8/0263 ,  C22C38/04 ,  C22C38/06 ,  C22C38/22 ,  C22C38/26 ,  C22C38/32

摘要： This wear-resistant steel plate includes, in terms of mass %, C: not less than 0.13% and not more than 0.18%, Si: not less than 0.5% but less than 1.0%, Mn: not less than 0.2% and not more than 0.8%, P: not more than 0.020%, S: not more than 0.010%, Cr: not less than 0.5% and not more than 2.0%, Mo: not less than 0.03% and not more than 0.30%, Nb: more than 0.03% but not more than 0.10%, Al: not less than 0.01% and not more than 0.20%, B: not less than 0.0005% and not more than 0.0030%, and N: not more than 0.010%, with a remainder being Fe and unavoidable impurities, wherein an element composition is such that HI is 0.7 or greater and Ceq exceeds 0.50, and an HB value (Brinell hardness) at 25° C. is not less than 360 and not more than 440.

摘要翻译： 该耐磨钢板以质量％计含有：不小于0.13％且不大于0.18％的Si：不低于0.5％但小于1.0％，Mn：不小于0.2％ 大于0.8％，P：0.020％以下，S：0.010％以下，Cr：0.5％以上2.0％以下，Mo：0.03％以上0.30％以下 ：大于0.03％但不超过0.10％，Al：0.01％以上0.20％以下，B：0.0005％以上0.0030％以下，N：0.010％以下，与 余量为Fe和不可避免的杂质，其中元素组成为HI为0.7以上且Ceq超过0.50，25℃下的HB值（布氏硬度）为360以上且440以下。

公开(公告)号：US5062905A

公开(公告)日：1991-11-05

申请号：US567142

申请日：1990-08-14

申请人： Yukio Tomita ,  Ryota Yamaba ,  Tatsuya Kumagai

发明人： Yukio Tomita ,  Ryota Yamaba ,  Tatsuya Kumagai

IPC分类号： C21D3/06 ,  C21D8/12

CPC分类号： C21D3/06 ,  C21D8/1222 ,  C21D8/1261

摘要： A method of producing non-oriented magnetic steel plate having high magnetic flux density in a low magnetic field and uniform magnetic properties through the thickness direction, comprising selection of a heating temperature and finish rolling temperature to coarsen the size of the austenite grains and prevent refinement of the grain size in the rolling process, and annealing the steel after it has been rolled.

公开(公告)号：US4818047A

公开(公告)日：1989-04-04

申请号：US91632

申请日：1987-09-01

申请人： Yuuetsu Takuma ,  Hiroshi Kajioka ,  Tatsuya Kumagai ,  Toshihide Tokunaga ,  Kohdo Yamada

发明人： Yuuetsu Takuma ,  Hiroshi Kajioka ,  Tatsuya Kumagai ,  Toshihide Tokunaga ,  Kohdo Yamada

IPC分类号： G02B6/024 ,  G02B6/10 ,  G02B6/22

CPC分类号： G02B6/105

摘要： A polarized wave preserving fiber has a core at its center, cladding, an oval jacket, and a support member in order to improve transmitting property of the polarized single mode by adjusting the refractive index distribution and the ellipticity of the oval jacket.

摘要翻译： 偏振波保留光纤在其中心具有芯，包层，椭圆形护套和支撑构件，以便通过调节椭圆形护套的折射率分布和椭圆率来改善偏振单模的透射特性。

公开(公告)号：US08216400B2

公开(公告)日：2012-07-10

申请号：US12681853

申请日：2009-09-14

申请人： Tatsuya Kumagai

发明人： Tatsuya Kumagai

IPC分类号： C21D7/00 ,  C21D8/02 ,  C22C38/00

CPC分类号： C22C38/02 ,  C21D6/002 ,  C21D8/0226 ,  C21D8/0263 ,  C21D2211/008 ,  C22C38/001 ,  C22C38/04 ,  C22C38/06 ,  C22C38/08 ,  C22C38/12 ,  C22C38/42 ,  C22C38/44 ,  C22C38/46 ,  C22C38/54 ,  C22C38/58 ,  Y10T428/12

摘要： A high-strength steel plate includes the following composition: 0.18 to 0.23 mass % of C; 0.1 to 0.5 mass % of Si; 1.0 to 2.0 mass % of Mn; 0.020 mass % or less of P; 0.010 mass % or less of S; 0.5 to 3.0 mass % of Ni; 0.003 to 0.10 mass % of Nb; 0.05 to 0.15 mass % of Al; 0.0003 to 0.0030 mass % of B; 0.006 mass % or less of N; and a balance composed of Fe and inevitable impurities. A weld crack sensitivity index Pcm of the high-strength steel plate is 0.36 mass % or less. The Ac3 transformation point is equal to or less than 830° C., the percentage value of a martensite structure is equal to or greater than 90%, the yield strength is equal to or greater than 1300 MPa, and the tensile strength is equal to or greater than 1400 MPa and equal to or less than 1650 MPa. A prior austenite grain size number Nγ is calculated by Nγ=−3+log2m using an average number m of crystal grains per 1 mm2 in a cross section of a sample piece of the high-strength steel plate. If the tensile strength is less than 1550 MPa, the prior austenite grain size number Nγ satisfies the formulae Nγ≧([TS]−1400)×0.004+8.0 and Nγ≧11.0, and if the tensile strength is equal to or greater than 1550 MPa, the prior austenite grain size number Nγ satisfies the formulae Nγ≧([TS]−1550)×0.008+8.6 and Nγ≦11.0, where [TS] (MPa) is the tensile strength.

摘要翻译： 高强度钢板包含以下成分：C：0.18〜0.23质量％ 0.1〜0.5质量％的Si; 1.0〜2.0质量％的Mn; 0.020质量％以下的P; 0.010质量％以下的S; 0.5〜3.0质量％的Ni; 0.003〜0.10质量％的Nb; 0.05〜0.15质量％的Al; 0.0003〜0.0030质量％ 0.006质量％以下的N; 余量由Fe和不可避免的杂质构成。 高强度钢板的焊接裂纹敏感度指数Pcm为0.36质量％以下。 Ac 3相变点等于或小于830℃，马氏体组织的百分比值等于或大于90％，屈服强度等于或大于1300MPa，拉伸强度等于 或大于1400MPa且等于或小于1650MPa。 在高强度钢板的样品片的横截面中，通过Nγ= -3 + log2m，使用每1mm 2的平均数m个晶粒计算原奥氏体晶粒尺寸数Nγ。 如果拉伸强度小于1550MPa，则原奥氏体粒径Nγ满足公式Nγ≥（[TS] -1400）×0.004 + 8.0，Nγ≥11.0，如果拉伸强度为1550以上 MPa，原奥氏体粒径数Nγ满足公式Nγ≥（[TS] -1550）×0.008 + 8.6，Nγ＆nlE; 11.0，其中[TS]（MPa）为拉伸强度。

公开(公告)号：US20090107591A1

公开(公告)日：2009-04-30

申请号：US12084502

申请日：2006-11-08

申请人： Manabu Hoshino ,  Masaaki Fujioka ,  Yoichi Tanaka ,  Tatsuya Kumagai

发明人： Manabu Hoshino ,  Masaaki Fujioka ,  Yoichi Tanaka ,  Tatsuya Kumagai

IPC分类号： C21D8/02 ,  C22C38/04

CPC分类号： B21B3/02 ,  C21D8/0205 ,  C22C38/001 ,  C22C38/04 ,  C22C38/06 ,  C22C38/12 ,  C22C38/14

摘要： A high-tensile steel plate of low acoustic anisotropy and high weldability having yield stress of 450 MPa or greater and tensile strength of 570 MPa or greater and a process for producing the steel plate are provided. The steel has an Si content of 0.10% or less, thereby achieving a volume ratio of island martensite of 3% or less, contains Nb≧0.025% and Ti≧0.005% so as to satisfy 0.045%≦[Nb]+2×[Ti]≦0.105%, contains Nb, Ti, C and N in ranges such that the value of A=([Nb]+2×[Ti])×([C]+[N]×12/14) is 0.0022 to 0.0055, and has a steel structure wherein bainite volume ratio is 30% or more and pearlite volume ratio is less than 5%.

摘要翻译： 提供具有450MPa以上的屈服应力和570MPa以上的拉伸强度的低声各向异性和高可焊性的高强度钢板以及钢板的制造方法。 钢的Si含量为0.10％以下，岛马氏体的体积比为3％以下，含有Nb≥0.025％，Ti> 0.005％，满足0.045％<= [Nb] + 在[A] = [[Nb] + 2×[Ti]）×（[C] + [N]×12/14）的值为2 / [Ti]≤0.105的范围内，含有Nb，Ti， 0.0022〜0.0055，贝氏体体积比为30％以上，珠光体积率小于5％的钢结构。