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    Bottom structure of personal watercraft
    1.
    发明授权
    Bottom structure of personal watercraft 失效
    个人船底的结构

    公开(公告)号：US06237522B1

    公开(公告)日：2001-05-29

    申请号：US09527133

    申请日：2000-03-16

    申请人： Kanji Kiyohara ,  Mitsuhiro Yazaki ,  Takehiro Nakashima ,  Haruyoshi Maruyama ,  Hisashi Fujii ,  Takeshi Sugawara

    发明人： Kanji Kiyohara ,  Mitsuhiro Yazaki ,  Takehiro Nakashima ,  Haruyoshi Maruyama ,  Hisashi Fujii ,  Takeshi Sugawara

    IPC分类号： B63B132

    CPC分类号： B63B1/042

    摘要： A bottom structure of a personal watercraft enhances the running performance of a personal watercraft. A concavo-convex face (21) having very small concave or convex portions for drawing air from an outside of a watercraft is formed on a water contact face (S) in a bottom surface (20) of the personal watercraft during planing. The air is drawn by the concavo-convex face (21), thereby separating a water flow from the bottom surface (20). Consequently, frictional resistance to the water in the bottom surface (20) can be reduced.

    摘要翻译： 个人船只的底部结构增强了个人船只的运行性能。 在刨削期间，在个人船舶的底面（20）中的水接触面（S）上形成有用于从船舶外部抽出空气的非常小的凹凸部的凹凸面（21）。 空气由凹凸面（21）拉出，从而将水流从底面（20）分离。 因此，可以减小对底面（20）中的水的摩擦阻力。

    Thixocasting process of an alloy material
    4.
    发明授权
    Thixocasting process of an alloy material 失效
    合金材料的硫化过程

    公开(公告)号：US6053997A

    公开(公告)日：2000-04-25

    申请号：US956188

    申请日：1997-10-22

    申请人： Takeyoshi Nakamura ,  Nobuhiro Saito ,  Kazuo Kikawa ,  Takeshi Sugawara

    发明人： Takeyoshi Nakamura ,  Nobuhiro Saito ,  Kazuo Kikawa ,  Takeshi Sugawara

    IPC分类号： B21D21/00 ,  B22D17/00 ,  C22C1/00 ,  C22C21/02 ,  C22C21/14

    CPC分类号： B22D17/007 ,  C22C1/005 ,  C22C21/02 ,  C22C21/14 ,  Y10S164/90

    摘要： In carrying out of a thixocasting process, a material in a semi-molten state is produced by heating an aluminum alloy material which has a thermal characteristic that a first angled endothermic section generated by the melting of a eutectic crystal and a second angled endothermic section generated by the melting of a component having a melting point higher than an eutectic point exist in a differential calorimetric curve. A start point of a primary pressing stage is established at a point when the temperature T of the material is in a range of T.sub.1

    摘要翻译： 在进行触媒处理的过程中，通过加热铝合金材料来制造半熔融状态的材料，所述铝合金材料具有通过共晶晶体熔化产生的第一倾斜的吸热部分和产生的第二成角度的吸热部分的热特性 通过熔点高于共晶点的组分的熔融存在于差示量热曲线中。 在材料的温度T在第一角度吸热中的起始点的温度T1之间的关系中，在T1

    Sintered alloy for valve seat
    5.
    发明授权
    Sintered alloy for valve seat 失效
    阀座用烧结合金

    公开(公告)号：US4505988A

    公开(公告)日：1985-03-19

    申请号：US518262

    申请日：1983-07-28

    申请人： Shigeru Urano ,  Kiyoshi Yamamoto ,  Yoshiaki Takagi ,  Takeshi Sugawara

    发明人： Shigeru Urano ,  Kiyoshi Yamamoto ,  Yoshiaki Takagi ,  Takeshi Sugawara

    IPC分类号： F01L3/02 ,  C22C33/02 ,  C22C38/00 ,  C22C38/44 ,  B22F3/26 ,  B22F5/00

    CPC分类号： C22C33/0207 ,  Y10T428/1216 ,  Y10T428/12174

    摘要： A sintered alloy for a valve seat comprising, in weight percent, 0.5 to 1.7% C, 0.5 to 2.5% Ni, 3.0 to 8.0% Cr, 0.1 to 0.9% Mo, 1.0 to 3.8% W and 4.5 to 8.5% Co, the balance being substantially Fe provided by a base atomized powder; said alloy containing 8 to 14% by volume of 250 mesh or less C-Cr-W-Co-Fe and Fe-Mo hard grains and 6 to 13% by volume of cells, with the continuous cells being infiltrated by a copper alloy.

    摘要翻译： 一种用于阀座的烧结合金，其包含重量百分比为0.5至1.7％的C，0.5至2.5％的Ni，3.0至8.0％的Cr，0.1至0.9％的Mo，1.0至3.8％的W和4.5至8.5％的Co， 余量基本上是由碱雾化粉末提供的Fe; 所述合金含有8至14体积％的250目或更少的C-Cr-W-Co-Fe和Fe-Mo硬质颗粒和6至13体积％的电池，其中连续电池被铜合金渗透。

    Iron-based alloy and method for production thereof
    6.
    发明授权
    Iron-based alloy and method for production thereof 失效
    铁基合金及其制造方法

    公开(公告)号：US07163593B2

    公开(公告)日：2007-01-16

    申请号：US10311311

    申请日：2002-04-19

    申请人： Takeshi Sugawara ,  Noriyuki Yamada ,  Makoto Asami

    发明人： Takeshi Sugawara ,  Noriyuki Yamada ,  Makoto Asami

    IPC分类号： C22C38/12 ,  C22D38/08 ,  C21D6/02

    CPC分类号： C21D6/001 ,  C21D6/00 ,  C21D6/02 ,  C21D2211/001 ,  C21D2211/003 ,  C21D2211/004 ,  C21D2211/008 ,  C22C38/04 ,  C22C38/08 ,  C22C38/12

    摘要： An iron-based alloy comprises 1.5 to 2.5 wt % of C, 0.25 to 4.75 wt % of Ni, and W and V in quantities surrounded by the line L as shown in FIG. 1 of the attached drawings with a balance of Fe and inevitable impurities. The iron-based alloy is obtained by a first heat treatment for applying a solid solution treatment by rapidly cooling the iron-based alloy from a temperature of an austenite forming temperature or more to consequently obtain a mixed matrix comprising a base matrix of martensite and remaining austenite phases and a non-molten carbide, and a second heat treatment for cooling the iron-based alloy after precipitating an MC type carbide within an eutectoid transformation temperature range to consequently precipitate a low carbon content austenite phase.

    摘要翻译： 铁基合金包含C：1.5〜2.5重量％，Ni：0.25〜4.75重量％，以及由线L围绕的W和V，如图1所示。 附图1中的余量为Fe和不可避免的杂质。 铁基合金是通过第一次热处理得到的，其中通过从奥氏体形成温度以上的温度快速冷却铁基合金来进行固溶处理，从而得到包含马氏体基体和剩余部分的混合基体 奥氏体相和非熔融碳化物，以及在共析相变温度范围内使MC型碳化物析出后，对铁基合金进行冷却的第二热处理，从而析出低碳含量的奥氏体相。

    Process for producing Fe-based member having high young's modulus and high toughness
    7.
    发明授权
    Process for producing Fe-based member having high young's modulus and high toughness 失效
    具有高杨氏模量和高韧性的Fe基部件的制造方法

    公开(公告)号：US06332938B1

    公开(公告)日：2001-12-25

    申请号：US09373600

    申请日：1999-08-13

    申请人： Takeshi Sugawara

    发明人： Takeshi Sugawara

    IPC分类号： C21D500

    CPC分类号： C22C38/04 ,  C21D6/00 ,  C22C38/02 ,  C22C38/08

    摘要： The present invention produces an Fe-based member having a high Young's modulus and a high toughness. In producing an Fe-based member, a first step and a second step are sequentially carried out. At the first step, an Fe-based material comprising 1.5% by weight≦C≦2.5% by weight 1.4% by weight≦Si≦3.5% by weight 0.9% by weight≦Mn≦1.7% by weight 0.5% by weight≦Ni≦1.5% by weight, and the balance of Fe including inevitable impurities is subjected to a thermal treatment at a heating temperature set in a range of TS

    摘要翻译： 本发明生产具有高杨氏模量和高韧性的Fe基部件。 在制造Fe基构件时，依次进行第一步骤和第二步骤。 在第一步中，包含1.5重量％的铁基材料<= C <= 2.5重量％1.4重量％<= Si <= 3.5重量％0.9重量％<= Mn <= 1.7 重量％0.5重量％

    Alloy material for thixocasting, process for preparing semi-molten alloy material for thixocasting and thixocasting process
    8.
    发明授权
    Alloy material for thixocasting, process for preparing semi-molten alloy material for thixocasting and thixocasting process 失效
    用于触媒的合金材料，用于制备用于触变和触变过程的半熔融合金材料的方法

    公开(公告)号：US5849115A

    公开(公告)日：1998-12-15

    申请号：US861265

    申请日：1997-05-21

    申请人： Haruo Shiina ,  Nobuhiro Saito ,  Takeyoshi Nakamura ,  Takeshi Sugawara

    发明人： Haruo Shiina ,  Nobuhiro Saito ,  Takeyoshi Nakamura ,  Takeshi Sugawara

    IPC分类号： C22C1/00 ,  G01N33/20 ,  B22D21/00

    CPC分类号： C22C1/005 ,  G01N33/20 ,  Y10S164/90

    摘要： A differential thermal analysis thermograph for a thixocasting aluminum alloy material is such that, a relationship, E.sub.1 >E.sub.2, is established between a peak value E.sub.1 of a first angled endothermic section generated by eutectic melting and a peak value E.sub.2 of a second angled endothermic section generated by melting of an element having a melting point higher than the eutectic point. Thus, a liquid phase produced by the eutectic melting has a large latent heat due to the fact that the peak value E.sub.1 of the first angled endothermic section is larger than the peak value E.sub.2 of the second angled endothermic section in a semi-molten eutectic aluminum alloy material derived from the thixocasting aluminum alloy material. As a result, in a solidification step of the thixocasting process, a liquid phase produced by the eutectic melting is sufficiently fed around a solid phase in response to the solidification and shrinkage of the solid phase, and then solidified. Thus, it is possible to produce a casting free from defects such as voids on the order of a micron.

    摘要翻译： 用于触媒铝合金材料的差示热分析热成像仪是这样的，即通过由共晶熔融产生的第一倾斜吸热部分的峰值E1与第二成角度吸热部分的峰值E2之间建立关系E1> E2 通过熔点高于共晶点的熔点而产生。 因此，由于第一成角度吸热部的峰值E1大于半熔融共晶铝中的第二倾斜吸热部的峰值E2，所以由共晶熔融产生的液相具有大的潜热 衍生自thixocasting铝合金材料的合金材料。 结果，在固化步骤中，通过共晶熔融产生的液相，以固相的固相和收缩为固相充分地进料，然后固化。 因此，可以生产没有诸如微米级的空隙的缺陷的铸件。

    Thixocasting process, for a thixocasting alloy material
    9.
    发明授权
    Thixocasting process, for a thixocasting alloy material 失效
    Thixocasting工艺，用于触变合金材料

    公开(公告)号：US5787961A

    公开(公告)日：1998-08-04

    申请号：US543196

    申请日：1995-10-13

    申请人： Takeyoshi Nakamura ,  Nobuhiro Saito ,  Kazuo Kikawa ,  Takeshi Sugawara

    发明人： Takeyoshi Nakamura ,  Nobuhiro Saito ,  Kazuo Kikawa ,  Takeshi Sugawara

    IPC分类号： B21D21/00 ,  B22D17/00 ,  C22C1/00 ,  C22C21/02 ,  C22C21/14 ,  B22D23/00

    CPC分类号： B22D17/007 ,  C22C1/005 ,  C22C21/02 ,  C22C21/14 ,  Y10S164/90

    摘要： In carrying out of a thixocasting process, a material in a semi-molten state is produced by heating an aluminum alloy material which has a thermal characteristic that a first angled endothermic section generated by the melting of a eutectic crystal and a second angled endothermic section generated by the melting of a component having a melting point higher than a eutectic point exist in a differential calorimetric curve. A start point of a primary pressing stage is established at a point when the temperature T of the material is in a range of T.sub.1

    摘要翻译： 在进行触媒处理的过程中，通过加热铝合金材料来制造半熔融状态的材料，所述铝合金材料具有通过共晶晶体熔化产生的第一倾斜的吸热部分和产生的第二成角度的吸热部分的热特性 通过熔点高于共晶点的组分的熔融存在于差示量热曲线中。 在材料的温度T在第一角度吸热中的起始点的温度T1之间的关系中，在T1