公开(公告)号：US20060225814A1

公开(公告)日：2006-10-12

申请号：US11401450

申请日：2006-04-11

申请人： Koki Mizuno ,  Hideki Matsuda ,  Seiji Kobayashi ,  Hisato Takeuchi ,  Katsunori Takada ,  Yutaka Kurebayashi

发明人： Koki Mizuno ,  Hideki Matsuda ,  Seiji Kobayashi ,  Hisato Takeuchi ,  Katsunori Takada ,  Yutaka Kurebayashi

IPC分类号： C23C8/32

CPC分类号： C23C8/32 ,  C23C8/02

摘要： A surface of a steel, as a material for a crankshaft, is nitrocarburized. The steel contains, as alloy elements C having a content 0.10 mass % or more 0.30 mass % or less, Si having a content 0.5 mass % or more and 0.3 mass % or less, Mn having a content 0.3 mass % or more and 1.5 mass % or less, Mo having a content 0.8 mass % or more and 2.0 mass % or less, Cr having a content 0.1 mass % or more and 1.0 mass % or less, and V having a content 0.1 mass % or more and 0.5 mass % or less, with a remainder consisting of Fe and inevitable impurities. The contents of the alloy elements fall within ranges: 2.0 mass %≦Mn+Cr+Mo≦3.0 mass %, 2.3 mass %≦C+Mo+5V ≦3.7 mass %, and 2.7 mass %≦2.16 Cr+Mo+2.54V≦4.0 mass %. If a steel sample extracted from a central portion of the nitrocarburized steel free from an influence of the nitrocarburizing treatment is austenitized at 1200° C. for one hour, and cooled to a room temperature so that a cooling rate at which the steel sample passes through a temperature range between 900° C. and 300° C. is 0.5° C./second, then an area percentage of a bainite structure in steel structures is 80% or more and a Vickers hardness measured at a cross section is 260 Hv or more and 330 Hv or less. A surface hardness of a nitrocarburized layer is 650 Hv or more, a formation depth of the nitrocarburized layer is 0.3 mm or more, and a hardness of the central portion is 340 Hv or more. Thereby a crankshaft which is excellent both in the machinability and in fatigue strength, even after nitrocarburizing treatment on the surface, is provided.

摘要翻译： 作为曲轴的材料的钢的表面被氮碳共渗。 钢含有含量为0.10质量％以上且0.30质量％以下的合金成分C，含有0.5质量％以上且0.3质量％以下的Si，含有0.3质量％以上且1.5质量％的Mn ％以下，含量为0.8质量％以上且2.0质量％以下的Mo为0.1质量％以上且1.0质量％以下的Cr，含量为0.1质量％以上至0.5质量％的V以下， 或更少，余量由Fe和不可避免的杂质组成。 合金元素含量在2.0质量％<= Mn + Cr + Mo <= 3.0质量％，2.3质量％<= C + Mo + 5V≤3.3质量％，2.7质量％<= 2.16Cr的范围内 + Mo + 2.54V <= 4.0质量％。 如果不受氮碳共渗处理的影响，从氮碳共渗钢的中央部提取的钢样品在1200℃下奥氏体化1小时，冷却至室温，钢样品通过的冷却速度 在900℃至300℃之间的温度范围为0.5℃/秒，则钢结构中贝氏体组织的面积百分比为80％以上，横截面测得的维氏硬度为260Hv或 多达330 Hv以下。 氮碳共渗层的表面硬度为650Hv以上，氮覆层的形成深度为0.3mm以上，中央部的硬度为340Hv以上。 因此，即使在表面进行氮碳共渗处理之后，也提供了在机械加工性和疲劳强度方面优异的曲轴。

公开(公告)号：US20070017609A1

公开(公告)日：2007-01-25

申请号：US11490955

申请日：2006-07-21

申请人： Manabu Kubota ,  Suguru Yoshida ,  Toshimi Tarui ,  Hideki Matsuda ,  Koki Mizuno ,  Tadashi Ohya

发明人： Manabu Kubota ,  Suguru Yoshida ,  Toshimi Tarui ,  Hideki Matsuda ,  Koki Mizuno ,  Tadashi Ohya

IPC分类号： C22C38/12

CPC分类号： C22C38/02 ,  C21D1/18 ,  C21D9/0093 ,  C22C38/04 ,  C22C38/12 ,  F16B35/00

摘要： Steel and steel shaped articles with an excellent delayed fracture resistance and a tensile strength of the 1600 MPa class or more, containing, by mass %, C: 0.20 to 0.60%, Si: 0.50% or less, Mn: over 0.10% to 3%, Al: 0.005 to 0.1%, Mo: over 3.0% to 10%, and, as needed, one or more of W: 0.01 to 10%, V: 0.05 to 1%, Ti: 0.01 to 1%, Nb: 0.01 to 1%, Cr: 0.10 to 2%, Ni: 0.05 to 1%, Cu: 0.05 to 0.5%, and B: 0.0003 to 0.01%, and a balance of Fe and unavoidable impurities and, further, a method of production comprising shaping the above steel to a desired shape (for example, a bolt shape), quenching it, then tempering it at 500 to 750° C. in temperature range.

摘要翻译： 具有优异的延迟抗断裂性和1600MPa级以上的抗拉强度的钢和钢制品，以质量％计含有C：0.20〜0.60％，Si：0.50％以下，Mn：超过0.10％〜3％ ％，Al：0.005〜0.1％，Mo：3.0％〜10％，W：0.01〜10％，V：0.05〜1％，Ti：0.01〜1％，Nb： 0.01〜1％，Cr：0.10〜2％，Ni：0.05〜1％，Cu：0.05〜0.5％，B：0.0003〜0.01％，余量由Fe和不可避免的杂质构成， 包括将上述钢成形为期望的形状（例如螺栓形状），淬火，然后在温度范围内在500-750℃下回火。

公开(公告)号：US07754029B2

公开(公告)日：2010-07-13

申请号：US11490955

申请日：2006-07-21

申请人： Manabu Kubota ,  Suguru Yoshida ,  Toshimi Tarui ,  Hideki Matsuda ,  Koki Mizuno ,  Tadashi Ohya

发明人： Manabu Kubota ,  Suguru Yoshida ,  Toshimi Tarui ,  Hideki Matsuda ,  Koki Mizuno ,  Tadashi Ohya

IPC分类号： C22C38/12 ,  C22C38/16 ,  C22C38/04 ,  C22C38/06

CPC分类号： C22C38/02 ,  C21D1/18 ,  C21D9/0093 ,  C22C38/04 ,  C22C38/12 ,  F16B35/00

摘要： Steel and steel shaped articles with an excellent delayed fracture resistance and a tensile strength of the 1600 MPa class or more, containing, by mass %, C: 0.20 to 0.60%, Si: 0.50% or less, Mn: over 0.10% to 3%, Al: 0.005 to 0.1%, Mo: over 3.0% to 10%, and, as needed, one or more of W: 0.01 to 10%, V: 0.05 to 1%, Ti: 0.01 to 1%, Nb: 0.01 to 1%, Cr: 0.10 to 2%, Ni: 0.05 to 1%, Cu: 0.05 to 0.5%, and B: 0.0003 to 0.01%, and a balance of Fe and unavoidable impurities and, further, a method of production comprising shaping the above steel to a desired shape (for example, a bolt shape), quenching it, then tempering it at 500 to 750° C. in temperature range.

摘要翻译： 具有优异的延迟抗断裂性和1600MPa级以上的抗拉强度的钢和钢制品，以质量％计含有C：0.20〜0.60％，Si：0.50％以下，Mn：超过0.10％〜3％ ％，Al：0.005〜0.1％，Mo：3.0％〜10％，W：0.01〜10％，V：0.05〜1％，Ti：0.01〜1％，Nb： 0.01〜1％，Cr：0.10〜2％，Ni：0.05〜1％，Cu：0.05〜0.5％，B：0.0003〜0.01％，余量由Fe和不可避免的杂质构成， 包括将上述钢成形为期望的形状（例如螺栓形状），淬火，然后在温度范围内在500-750℃下回火。

公开(公告)号：US07510614B2

公开(公告)日：2009-03-31

申请号：US11490975

申请日：2006-07-21

申请人： Suguru Yoshida ,  Toshimi Tarui ,  Manabu Kubota ,  Hideki Matsuda ,  Tadashi Ohya ,  Koki Mizuno

发明人： Suguru Yoshida ,  Toshimi Tarui ,  Manabu Kubota ,  Hideki Matsuda ,  Tadashi Ohya ,  Koki Mizuno

IPC分类号： C22C28/02 ,  C22C38/04 ,  C22C38/06 ,  C21D8/00

CPC分类号： B21K1/46 ,  B21H3/02 ,  C22C38/02 ,  C22C38/04 ,  C22C38/12 ,  F16B35/00

摘要： The present invention provides a high strength bolt excellent in delayed fracture resistance able to advantageously prevent hydrogen embrittlement as represented by the delayed fracture phenomenon occurring along with an increase in strength and causing a particular problem, and a method of production of the same, containing, by mass %, C: 0.2 to 0.6%, Si: 0.05 to 0.5%, Mn: 0.1 to 2%, Mo: 0.5 to 6%, and Al: 0.005 to 0.5%, having a tensile strength of 1400 MPa or more, and having a compressive residual stress of the surface layer of the thread root of 10 to 90% of the tensile strength. Further, a surface layer part of the thread root from the surface down to at least 50 μm has pre-austenite grains with an aspect ratio of the axial direction and radial direction of 2 or more and that part has a hardness of Hv 460 or more. Further, the method of production comprises using the steel material having the above ingredients to shape the bolt head and shaft, then heat the bolt to 900 to 1100° C., quench it, temper it by a 580° C. or higher temperature, then thread roll it.

摘要翻译： 本发明提供了一种具有优异的延迟断裂抵抗性的高强度螺栓，其能够有利地防止随着强度的增加而发生的延迟断裂现象所引起的氢脆化，并引起特定问题，及其制造方法， 以下，拉伸强度为1400MPa以上，C：0.2〜0.6％，Si：0.05〜0.5％，Mn：0.1〜2％，Mo：0.5〜6％，Al：0.005〜 并且具有螺纹根表面层的抗拉强度的10〜90％的压缩残余应力。 此外，从表面向下至至少50μm的螺纹根部的表面层部分具有轴向和径向的纵横比为2以上的预奥氏体晶粒，并且该部分的硬度为Hv 460以上 。 此外，生产方法包括使用具有上述成分的钢材来成形螺栓头和轴，然后将螺栓加热至900至1100℃，淬火，回火580℃或更高的温度， 然后卷起它。

公开(公告)号：US20070017610A1

公开(公告)日：2007-01-25

申请号：US11490975

申请日：2006-07-21

申请人： Suguru Yoshida ,  Toshimi Tarui ,  Manabu Kubota ,  Hideki Matsuda ,  Tadashi Ohya ,  Koki Mizuno

发明人： Suguru Yoshida ,  Toshimi Tarui ,  Manabu Kubota ,  Hideki Matsuda ,  Tadashi Ohya ,  Koki Mizuno

IPC分类号： C22C38/12

CPC分类号： B21K1/46 ,  B21H3/02 ,  C22C38/02 ,  C22C38/04 ,  C22C38/12 ,  F16B35/00

摘要： The present invention provides a high strength bolt excellent in delayed fracture resistance able to advantageously prevent hydrogen embrittlement as represented by the delayed fracture phenomenon occurring along with an increase in strength and causing a particular problem, and a method of production of the same, containing, by mass %, C: 0.2 to 0.6%, Si: 0.05 to 0.5%, Mn: 0.1 to 2%, Mo: 0.5 to 6%, and Al: 0.005 to 0.5%, having a tensile strength of 1400 MPa or more, and having a compressive residual stress of the surface layer of the thread root of 10 to 90% of the tensile strength. Further, a surface layer part of the thread root from the surface down to at least 50 μm has pre-austenite grains with an aspect ratio of the axial direction and radial direction of 2 or more and that part has a hardness of Hv 460 or more. Further, the method of production comprises using the steel material having the above ingredients to shape the bolt head and shaft, then heat the bolt to 900 to 1100° C., quench it, temper it by a 580° C. or higher temperature, then thread roll it.

摘要翻译： 本发明提供了一种具有优异的延迟断裂性的高强度螺栓，其能够有利地防止随着强度的增加而发生的延迟断裂现象所引起的氢脆化，并引起特定问题，及其制备方法， 以下，拉伸强度为1400MPa以上，C：0.2〜0.6％，Si：0.05〜0.5％，Mn：0.1〜2％，Mo：0.5〜6％，Al：0.005〜 并且具有螺纹根表面层的抗拉强度的10〜90％的压缩残余应力。 此外，从表面向下至至少50μm的螺纹根部的表面层部分具有轴向和径向的纵横比为2以上的预奥氏体晶粒，并且该部分的硬度为Hv 460以上 。 此外，生产方法包括使用具有上述成分的钢材来成形螺栓头和轴，然后将螺栓加热至900至1100℃，淬火，回火580℃或更高的温度， 然后卷起它。

公开(公告)号：US5949118A

公开(公告)日：1999-09-07

申请号：US637128

申请日：1996-04-24

申请人： Minekazu Sakai ,  Tsuyoshi Fukada ,  Koki Mizuno ,  Yasutoshi Suzuki ,  Yoshitsugu Abe ,  Hiroshi Tanaka ,  Motoki Ito ,  Kazuhisa Ikeda ,  Hiroshi Okada

发明人： Minekazu Sakai ,  Tsuyoshi Fukada ,  Koki Mizuno ,  Yasutoshi Suzuki ,  Yoshitsugu Abe ,  Hiroshi Tanaka ,  Motoki Ito ,  Kazuhisa Ikeda ,  Hiroshi Okada

IPC分类号： G01L9/00 ,  H01L29/84 ,  H01L29/82

CPC分类号： G01L9/0042 ,  H01L29/84 ,  Y10S438/977

摘要： An etching method for a silicon substrate, which can easily smooth the etching surface of the (110)-oriented silicon, is disclosed. A container is filled with KOH solution. In the KOH solution is immersed a (110)-oriented silicon wafer having a PN junction and is also disposed a platinum electrode plate to face the silicon wafer. To between a platinum electrode of the silicon wafer and the platinum electrode plate are connected a constant voltage power source, an ammeter and a contact in series. A controller starts etching from one surface on which the PN junction is formed, and terminates voltage application when the specified time lapses after the formation of an anodic oxide film is equilibrated with the etching of the anodic oxide film on the etching surface on the PN junction part. In this case, the controller detects flowing current through the ammeter, and the point of time when the equilibrium state is obtained is the point of inflection of the detected current to the constant current after the peak thereof.

摘要翻译： 公开了一种可以容易地平滑（110）取向的硅的蚀刻表面的硅衬底的蚀刻方法。 容器中充满KOH溶液。 在KOH溶液中浸渍具有PN结的（110）取向的硅晶片，并且还设置有与铂晶片相对的铂电极板。 在硅晶片的铂电极和铂电极板之间连接恒压电源，电流表和触点串联。 控制器从其上形成PN结的一个表面开始蚀刻，并且在阳极氧化膜形成之后指定的时间经过平衡后，在PN结的蚀刻表面上蚀刻阳极氧化膜来终止电压施加 部分。 在这种情况下，控制器检测通过电流表的流动电流，并且获得平衡状态的时间点是检测电流在其峰值之后的恒定电流的拐点。

公开(公告)号：US20080099107A1

公开(公告)日：2008-05-01

申请号：US11976646

申请日：2007-10-26

申请人： Kouji Ohbayashi ,  Kazuaki Okada ,  Taro Matsukawa ,  Yutaka Eto ,  Koki Mizuno ,  Kazumichi Tsukuda

发明人： Kouji Ohbayashi ,  Kazuaki Okada ,  Taro Matsukawa ,  Yutaka Eto ,  Koki Mizuno ,  Kazumichi Tsukuda

IPC分类号： C23C8/22 ,  B23P17/00 ,  C21D1/00 ,  C21D1/84

CPC分类号： C23C8/22 ,  B23P15/00 ,  C21D1/00 ,  C21D1/84 ,  C23C8/80 ,  F16H55/56 ,  Y10T29/49456

摘要： A method of manufacturing a sheave member for a belt-type continuously variable transmission includes a forming step wherein an intermediate product having a sheave surface is formed by forging a steel material; a carburization step wherein the intermediate product is heated in a carburization gas; a gradual cooling step wherein the cooling speed is equal to or less than 20° C./sec, at least until the temperature of the intermediate product has passed through the transformation point; a high-frequency electrical heating step wherein a selected portion(s) of the intermediate product is heated; a water quenching step wherein the selected portion is quenched by contact with water; and a finishing step wherein a grinding process is applied to the intermediate product to attain the final shape. In the cooling step, preferably, the intermediate product is contacted with a cooling gas at a pressure lower than atmospheric pressure.

摘要翻译： 一种制造带式无级变速器的滑轮构件的方法包括：形成步骤，其中通过锻造钢材形成具有滑轮表面的中间产品; 渗碳步骤，其中所述中间产物在渗碳气中加热; 至少直到中间产品的温度通过相变点为止，其中冷却速度等于或小于20℃/秒的逐渐冷却步骤; 高频电加热步骤，其中加热所述中间产物的选定部分; 水淬步骤，其中所选择的部分通过与水接触来淬火; 以及精加工步骤，其中将研磨工艺施加到中间产品以获得最终形状。 在冷却步骤中，优选地，中间产物在低于大气压的压力下与冷却气体接触。

公开(公告)号：US20060137766A1

公开(公告)日：2006-06-29

申请号：US11319871

申请日：2005-12-27

申请人： Shuji Kozawa ,  Tatsuro Ochi ,  Hideo Kanisawa ,  Tomoko Serikawa ,  Koki Mizuno

发明人： Shuji Kozawa ,  Tatsuro Ochi ,  Hideo Kanisawa ,  Tomoko Serikawa ,  Koki Mizuno

IPC分类号： C22C38/22 ,  C22C38/24 ,  C23C8/22 ,  C23C8/32

CPC分类号： C23C8/22 ,  C23C8/32

摘要： The present invention provides case-hardening steel superior in tooth surface fatigue strength and a gear using the same used for parts of automobiles, construction machines, industrial machines, etc., that is case-hardening steel superior in tooth surface fatigue strength containing, by wt %, C: 0.1 to 0.3%, Si: 1.0 to 2.0%, Mn: 0.3 to 2.0%, S: 0.005 to 0.05%, Cr: 1.0 to 2.6%, Mo: 0.8 to 4.0%, V: 0.1 to 0.3%, Al: 0.001 to 0.2%, and N: 0.003 to 0.03%, limiting P to 0.03% or less, and having as a balance iron and unavoidable impurities, and satisfies the following expression, 31Si (%)+15Mn (%)+23Cr (%)+26Mo (%)+100V (%) is 100 or more, and a gear comprised of case-hardening steel and having an X-ray diffraction half width at a depth of 50 mm from the surface of the gear of 6.4 degrees or more.

摘要翻译： 本发明提供了表面疲劳强度优异的表面硬化钢和使用其用于汽车，工程机械，工业机械等部件的齿轮，其是表面硬化钢，其表面疲劳强度优异，包括由 重量％，C：0.1〜0.3％，Si：1.0〜2.0％，Mn：0.3〜2.0％，S：0.005〜0.05％，Cr：1.0〜2.6％，Mo：0.8〜4.0％，V：0.1〜 ％，Al：0.001〜0.2％，N：0.003〜0.03％，将P限制在0.03％以下，余量为铁和不可避免的杂质，满足下式：31Si（％）+ 15Mn（％） + 23Cr（％）+ 26Mo（％）+ 100V（％）为100以上，由外壳硬化钢构成的齿轮与齿轮表面的距离为50mm的X射线衍射半值宽度 为6.4度以上。

公开(公告)号：US20060130935A1

公开(公告)日：2006-06-22

申请号：US11296566

申请日：2005-12-08

申请人： Atsushi Hattori ,  Takashi Kano ,  Tomoko Serikawa ,  Koki Mizuno

发明人： Atsushi Hattori ,  Takashi Kano ,  Tomoko Serikawa ,  Koki Mizuno

IPC分类号： C23C8/22

CPC分类号： C23C8/80 ,  C23C8/22

摘要： This invention aims to provide a carburized component realizing a larger strength for power transmission components such as gears, and a method of manufacturing the same. The carburized component of this invention, aimed at realizing the object, consists essentially of, in % by mass and both ends inclusive, C: 0.1-0.30%, Si: 0.80-1.50%, Mn: 0.30-1.20%, Cr: 2.0-5.5%, and the balance of Fe and inevitable impurities; has a mean C concentration over the range from the surface of the steel to a depth of 0.2 mm after vacuum carburization of 1.2% or more and 3.0% or less, and has a ratio of a carbide area over the range from the surface to a depth of 50 μm of 15% or more and 60% or less, has the carbide precipitated in a finely dispersed manner so that the carbide having a grain size of 10 μm or less accounts for 90% or more of the entire portion, and has a depth of a grain boundary oxide layer below the surface of 1 μm or less.

摘要翻译： 本发明的目的在于提供一种对齿轮等动力传递部件实现较大强度的渗碳部件及其制造方法。 旨在实现该目的的本发明的渗碳组分基本上由质量％和两端包括C：0.1-0.30％，Si：0.80-1.50％，Mn：0.30-1.20％，Cr：2.0 -5.5％，余量为Fe和不可避免的杂质; 在真空渗碳后，从钢表面到深度0.2mm的范围内的平均C浓度为1.2％以上且3.0％以下，并且具有从表面到a的范围内的碳化物面积的比例 深度50μm，15％以上且60％以下的碳化物，以微细分散的方式析出碳化物，使得粒径为10μm以下的碳化物占全部的90％以上，具有 在1μm以下的表面下方的晶界氧化物层的深度。

公开(公告)号：US5594236A

公开(公告)日：1997-01-14

申请号：US356083

申请日：1994-12-14

申请人： Yasutoshi Suzuki ,  Kenichi Yokoyama ,  Koki Mizuno ,  Inao Toyoda ,  Yukio Tsuzuki

发明人： Yasutoshi Suzuki ,  Kenichi Yokoyama ,  Koki Mizuno ,  Inao Toyoda ,  Yukio Tsuzuki

IPC分类号： H01L31/0203 ,  H01L31/0216 ,  H01J40/14

CPC分类号： H01L31/0203 ,  H01L24/05 ,  H01L31/02164 ,  H01L2224/04042 ,  H01L2224/05556 ,  H01L2224/45144 ,  H01L2224/48091 ,  H01L2224/48227 ,  H01L2224/48463 ,  H01L2924/12036 ,  H01L2924/12043

摘要： A sunlight sensor is provided which detects sunlight by means of a semiconductor device and achieves the desired elevation angle characteristics. The sunlight sensor is implemented as a semiconductor device having p+ layers 10 and 11 as a light-responsive section and an n+ or n layer 9 as a light-nonresponsive section, and additionally having a light-detection element 2 which outputs a detection signal responsive to the amount of light received by the p+ layers 10 and 11. A light-transparent molding 4 is provided at least over the light-detection element 2, and additionally a light-cutoff mask 5 is provided on the transparent molding 4. The relative positions of the light-cutoff mask, the p+ layers 10 and 11, and the n+ or n layer 9 are then established. By doing this, of the shadow of the light-cutoff mask 5 which is created when incident sunlight 13 and 14 strikes the light-detection element, the surface area of at least the part of the shadow which falls on the p+ layers 10 and 11 and the part of the shadow that falls on the n+ or n layer 9 are controlled so as to obtain the desired elevation angle characteristics.

摘要翻译： 提供了通过半导体装置检测太阳光并实现期望的仰角特性的阳光传感器。 太阳光传感器被实现为具有作为光响应部分的p +层10和11以及作为光无响应部分的n +或n层9的半导体器件，并且另外具有响应性地输出检测信号的光检测元件2 相对于由p +层10和11接收的光量。透光模制件4至少设置在光检测元件2上，另外在透明模制件4上设置有光屏蔽5。 然后建立遮光掩模，p +层10和11以及n +或n层9的位置。 通过这样做，当入射太阳光13和14撞击光检测元件时产生的遮光掩模5的阴影中，至少部分阴影部分落在p +层10和11上的表面积 并且控制落在n +或n层9上的阴影的一部分以获得期望的仰角特性。