公开(公告)号：US20130186529A1

公开(公告)日：2013-07-25

申请号：US13823644

申请日：2012-05-25

申请人： Shinya Teramoto ,  Hiromasa Takada ,  Manabu Kubota ,  Yoichi Taniguchi ,  Junichi Nakatsuka ,  Kazuhiro Fujimura ,  Satoshi Koganemaru

发明人： Shinya Teramoto ,  Hiromasa Takada ,  Manabu Kubota ,  Yoichi Taniguchi ,  Junichi Nakatsuka ,  Kazuhiro Fujimura ,  Satoshi Koganemaru

IPC分类号： C21D8/00 ,  C22C38/02 ,  C22C38/26 ,  C22C38/00 ,  C22C38/22 ,  C22C38/38 ,  C22C38/06

CPC分类号： C21D8/005 ,  B21J1/003 ,  C21D1/20 ,  C21D6/00 ,  C21D2211/002 ,  C21D2211/004 ,  C22C38/001 ,  C22C38/002 ,  C22C38/02 ,  C22C38/06 ,  C22C38/22 ,  C22C38/24 ,  C22C38/26 ,  C22C38/28 ,  C22C38/38 ,  C22C38/60

摘要： The present invention provides a steel part for machine structural use whose fatigue strength and toughness are improved and a manufacturing method thereof. A steel part made of a steel containing, in mass %, C: 0.05 to 0.20%, Si: 0.10 to 1.00%, Mn: 0.75 to 3.00%, P: 0.001 to 0.050%, S: 0.001 to 0.200%, V: exceeding 0.20 to 0.25%, Cr: 0.01 to 1.00%, Al: 0.001 to 0.500%, and N: 0.0080 to 0.0200%, and a balance being composed of Fe and inevitable impurities, in which a steel structure contains a bainite structure having an area ratio of 95% or more, a bainite lath width is 5 μm or less, V carbide having an average grain diameter of not less than 4 nm nor more than 7 nm dispersedly exists in the bainite structure, and an area ratio of V carbide in the bainite structure is 0.18% or more.

摘要翻译： 本发明提供了一种改善疲劳强度和韧性的机械结构用钢部件及其制造方法。 钢的钢部件以质量％计含有C：0.05〜0.20％，Si：0.10〜1.00％，Mn：0.75〜3.00％，P：0.001〜0.050％，S：0.001〜0.200％，V： 超过0.20〜0.25％，Cr：0.01〜1.00％，Al：0.001〜0.500％，N：0.0080〜0.0200％，余量由Fe和不可避免的杂质组成，其中钢结构体含有贝氏体结构， 贝氏体板条宽度为5μm以下，平均粒径为4nm以上且7nm以下的V碳化物分散存在于贝氏体组织中，V碳化物的面积比为95％ 在贝氏体结构中为0.18％以上。

公开(公告)号：US09187797B2

公开(公告)日：2015-11-17

申请号：US13823644

申请日：2012-05-25

申请人： Shinya Teramoto ,  Hiromasa Takada ,  Manabu Kubota ,  Yoichi Taniguchi ,  Junichi Nakatsuka ,  Kazuhiro Fujimura ,  Satoshi Koganemaru

发明人： Shinya Teramoto ,  Hiromasa Takada ,  Manabu Kubota ,  Yoichi Taniguchi ,  Junichi Nakatsuka ,  Kazuhiro Fujimura ,  Satoshi Koganemaru

IPC分类号： C21D8/00 ,  C22C38/00 ,  B21J1/00 ,  C21D6/00 ,  C21D1/20 ,  C22C38/02 ,  C22C38/06 ,  C22C38/22 ,  C22C38/24 ,  C22C38/26 ,  C22C38/28 ,  C22C38/38 ,  C22C38/60

CPC分类号： C21D8/005 ,  B21J1/003 ,  C21D1/20 ,  C21D6/00 ,  C21D2211/002 ,  C21D2211/004 ,  C22C38/001 ,  C22C38/002 ,  C22C38/02 ,  C22C38/06 ,  C22C38/22 ,  C22C38/24 ,  C22C38/26 ,  C22C38/28 ,  C22C38/38 ,  C22C38/60

摘要： The present invention provides a steel part for machine structural use whose fatigue strength and toughness are improved and a manufacturing method thereof. A steel part made of a steel containing, in mass %, C: 0.05 to 0.20%, Si: 0.10 to 1.00%, Mn: 0.75 to 3.00%, P: 0.001 to 0.050%, S: 0.001 to 0.200%, V: exceeding 0.20 to 0.25%, Cr: 0.01 to 1.00%, Al: 0.001 to 0.500%, and N: 0.0080 to 0.0200%, and a balance being composed of Fe and inevitable impurities, in which a steel structure contains a bainite structure having an area ratio of 95% or more, a bainite lath width is 5 μm or less, V carbide having an average grain diameter of not less than 4 nm nor more than 7 nm dispersedly exists in the bainite structure, and an area ratio of V carbide in the bainite structure is 0.18% or more.

摘要翻译： 本发明提供了一种改善疲劳强度和韧性的机械结构用钢部件及其制造方法。 钢的钢部件以质量％计含有C：0.05〜0.20％，Si：0.10〜1.00％，Mn：0.75〜3.00％，P：0.001〜0.050％，S：0.001〜0.200％，V： 超过0.20〜0.25％，Cr：0.01〜1.00％，Al：0.001〜0.500％，N：0.0080〜0.0200％，余量由Fe和不可避免的杂质组成，其中钢结构体含有贝氏体结构， 贝氏体板条宽度为5μm以下，平均粒径为4nm以上且7nm以下的V碳化物分散存在于贝氏体组织中，V碳化物的面积比为95％ 在贝氏体结构中为0.18％以上。

公开(公告)号：US20130181410A1

公开(公告)日：2013-07-18

申请号：US13697957

申请日：2011-03-31

申请人： Atsushi Chiba ,  Kazuhiro Fujimura ,  Iwao Hiraishi ,  Makoto Kajiwara

发明人： Atsushi Chiba ,  Kazuhiro Fujimura ,  Iwao Hiraishi ,  Makoto Kajiwara

IPC分类号： F16J9/20 ,  B23P15/06

CPC分类号： F16J9/20 ,  B23P15/06 ,  F16J9/062 ,  F16J9/26

摘要： A high-quality internal combustion engine oil ring which stably keeps oil consumption low for a long period and in which the shapes of an upper rail and a lower rail can be formed at low cost with high accuracy. The internal combustion engine oil ring has a recessed stepped portion formed at a corner of a sliding surface of an outer peripheral sliding projection in sliding contact with a cylinder inner wall surface of at least one of a first rail and a second rail constituting an oil ring main body, in a shape in vertical cross-section along a sliding direction of the first rail and second rail, and a wall surface of the recessed stepped portion has an arcuate surface having a radius of curvature of 0.02 mm to 0.08 mm.

摘要翻译： 一种能够以低成本，高精度地形成能够长时间保持油耗低，能够以低成本形成上轨道和下轨道的形状的高品质内燃机油环。 内燃机油环具有形成在外周滑动突起的滑动面的角部的凹形阶梯部，与构成油环的第一轨道和第二轨道中的至少一个的气缸内壁面滑动接触 主体，沿着第一轨道和第二轨道的滑动方向呈垂直截面的形状，并且凹形阶梯部分的壁表面具有曲率半径为0.02mm至0.08mm的弧形表面。

公开(公告)号：US20120205876A1

公开(公告)日：2012-08-16

申请号：US13503381

申请日：2009-11-30

申请人： Kazuhiro Fujimura ,  Atsushi Chiba ,  Naoyuki Akimoto ,  Iwao Hiraishi

发明人： Kazuhiro Fujimura ,  Atsushi Chiba ,  Naoyuki Akimoto ,  Iwao Hiraishi

IPC分类号： F16J9/26

CPC分类号： F16J9/26 ,  C23C14/0641 ,  F16J9/20

摘要： A piston ring is provided at its outer periphery with a sliding surface, wherein in a cross section thereof which is perpendicular to a radial direction of the piston ring, the sliding surface includes a first sliding surface which occupies a predetermined region from one end thereof, and a second sliding surface which occupies a region extending from one end to the other end of the first sliding surface, the first sliding surface is formed of hard film, the second sliding surface is not formed of hard film, and the second sliding surface exists at a position deviated inward from a phantom line extending from the first sliding surface toward the other end.

摘要翻译： 活塞环的外周设有滑动面，在与活塞环的径向垂直的截面中，滑动面包括从其一端占据规定区域的第一滑动面， 以及第二滑动面，其占据从所述第一滑动面的一端延伸到另一端的区域，所述第一滑动面由硬膜形成，所述第二滑动面不由硬膜形成，所述第二滑动面存在 在从第一滑动表面向另一端延伸的虚线向内偏移的位置处。

公开(公告)号：US07397872B2

公开(公告)日：2008-07-08

申请号：US10362295

申请日：2002-06-25

申请人： Kenji Komori ,  Masataka Wakamatsu ,  Hideaki Sato ,  Takashi Usui ,  Kazuyuki Saijo ,  Shinichi Tanabe ,  Hideo Morohashi ,  Kazuhiro Fujimura

发明人： Kenji Komori ,  Masataka Wakamatsu ,  Hideaki Sato ,  Takashi Usui ,  Kazuyuki Saijo ,  Shinichi Tanabe ,  Hideo Morohashi ,  Kazuhiro Fujimura

IPC分类号： H04L27/08 ,  H04B7/00

CPC分类号： H03G3/3078 ,  H03G3/3052 ,  H04L27/2647

摘要： An automatic gain control circuit able to perform high speed and correct level acquisition, able to prevent occurrence of error, and able to prevent a crash of the system. An amplification gain controller outputs a gain control signal to an automatic gain control amplifier to amplify the received signal with maximum value when receiving a burst detection trigger signal. A second gain control signal based on the detected reception signal power is calculated when receiving a first burst synchronization detection signal; and this second gain control signal is output to the automatic gain control amplifier. A received digital signal is amplified with the second gain and integrated to find the reception signal power, from which a third gain control signal is calculated and outputted to the automatic gain control amplifier to amplify the received signal with this third gain.

摘要翻译： 一种自动增益控制电路，能够执行高速和正确的电平采集，能够防止发生错误，并能够防止系统崩溃。 放大增益控制器将增益控制信号输出到自动增益控制放大器，以在接收到脉冲串检测触发信号时以最大值放大接收信号。 当接收到第一突发同步检测信号时，计算出基于检测到的接收信号功率的第二增益控制信号; 并且该第二增益控制信号被输出到自动增益控制放大器。 接收到的数字信号用第二增益放大并被积分以找出接收信号功率，由此计算第三增益控制信号并将其输出到自动增益控制放大器，以用该第三增益放大接收信号。