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10 条记录 (耗时 0.03 秒)

    Properties of the surface of a titanium alloy engine valve
    1.
    发明授权
    Properties of the surface of a titanium alloy engine valve 失效
    钛合金发动机阀门表面的性能

    公开(公告)号：US5543029A

    公开(公告)日：1996-08-06

    申请号：US564930

    申请日：1995-11-30

    申请人： Takeji Kenmoku ,  Shinichi Umino ,  Eiji Hirai ,  Kazuyoshi Kurosawa ,  Yoshio Matsumura

    发明人： Takeji Kenmoku ,  Shinichi Umino ,  Eiji Hirai ,  Kazuyoshi Kurosawa ,  Yoshio Matsumura

    IPC分类号： C25D5/50 ,  C25D15/02 ,  F01L3/02 ,  F01L3/04 ,  C25D15/00

    CPC分类号： F01L3/02 ,  C25D15/02 ,  C25D5/50 ,  F01L3/04

    摘要： There is provided a new method of improving properties of the surface of an internal combustion engine valve made from titanium alloy, which comprises; the steps of (a) forming a surface undercoat layer of nickel on a surface of the engine valve; (b) heating the resulting nickel undercoated valve in vacuum or in an atmosphere of inert gas, at the temperature of 450.degree. C. to 600.degree. C., for one to four hours; (c) forming further a three component coat layer comprising nickel, phosphorus and particles of material selected from the group consisting of silicone carbide, silicone nitride, boron nitride, and the combination thereof, on the surface of the nickel undercoat layer; and (d) heating the resulting coat layer formed on the nickel undercoat layer, at the temperature of 350.degree. C. to 550.degree. C., for one to four hours, so as to make the particles of ceramic material uniformly and homogeneously dispersed in said coat layer.

    摘要翻译： 提供了一种改进由钛合金制成的内燃机阀的表面性能的新方法，其包括： （a）在发动机气门的表面上形成镍的表面底涂层的步骤; （b）在450℃至600℃的温度下在真空或惰性气体气氛中加热所得的镍底漆阀1-4小时; （c）在镍底涂层的表面上进一步形成包含镍，磷和选自碳化硅，氮化硅，氮化硼及其组合的材料颗粒的三组分涂层; 和（d）在350℃至550℃的温度下将形成在镍底涂层上的所得涂层加热1-4小时，以使陶瓷材料颗粒均匀均匀地分散在 所述涂层。

    Titanium alloy engine valve shaft structure
    2.
    发明授权
    Titanium alloy engine valve shaft structure 失效
    钛合金发动机阀轴结构

    公开(公告)号：US5370364A

    公开(公告)日：1994-12-06

    申请号：US235104

    申请日：1994-04-29

    申请人： Takeji Kenmoku ,  Shinichi Umino ,  Eiji Hirai ,  Kazuyoshi Kurosawa ,  Yoshio Matsumura

    发明人： Takeji Kenmoku ,  Shinichi Umino ,  Eiji Hirai ,  Kazuyoshi Kurosawa ,  Yoshio Matsumura

    IPC分类号： C25D15/02 ,  F01L3/02 ,  F01L3/04 ,  F01L3/10

    CPC分类号： F01L3/02 ,  C25D15/02 ,  F01L3/04

    摘要： There is provided a new structure of an engine valve made from titanium alloy, having three component coat surface layer formed on the surface of the reciprocating shaft thereof, wherein the composition of the three component coat surface layer comprises nickel, phospher and particles of material selected from the group consisting of silicone carbide, silicone nitride, boron nitride, and the combination thereof; said particles are uniformly dispersed in said coat surface layer; and said coat surface layer is formed via a binding layer or directly on the surface of the shaft.

    摘要翻译： 提供了一种由钛合金制成的发动机阀的新结构，其具有形成在其往复轴的表面上的三组分涂层表面层，其中三组分涂层表面层的组成包括镍，磷光体和选择的材料颗粒 来自由碳化硅，氮化硅，氮化硼组成的组及其组合; 所述颗粒均匀地分散在所述涂层表面层中; 并且所述涂层表面层经由粘合层或直接在轴的表面上形成。

    Shim for a tappet in an internal combustion engine
    3.
    发明授权
    Shim for a tappet in an internal combustion engine 失效
    用于内燃机中的挺杆的垫片

    公开(公告)号：US5596959A

    公开(公告)日：1997-01-28

    申请号：US659302

    申请日：1996-06-06

    申请人： Takeji Kenmoku ,  Akihiro Hamada ,  Shinichi Umino

    发明人： Takeji Kenmoku ,  Akihiro Hamada ,  Shinichi Umino

    IPC分类号： F01L1/14 ,  F01L1/16 ,  F01L1/20

    CPC分类号： F01L1/16 ,  F01L1/143 ,  F01L1/205 ,  F01L2810/02 ,  F02B2275/18 ,  Y10T74/2107

    摘要： A shim for a tappet is used in a valve operating mechanism in an internal combustion engine. On the surface of the shim which a cam slidably contacts, there are provided a number of bores in which lubricating oil is put. When an oil film disappears on the surface by slidable contact with the cam, oil overflows from the bores onto the surface. By increasing oil-keeping capability on the surface of the shim, frictional resistance is reduced, thereby preventing wear in the shim and the cam. The bores may be filled with a lubricating solid such as molybdenum disulfide or plastics, such as polyethylene, silicone and Teflon.RTM.. The diameter of the bores may become larger as the bores extend away from the surface of the shim, thereby preventing the solid material from being displaced from the bores. The density of the bores on the shim surface can also be varied. The density of the bores in the central area of the shim surface can be greater than in the surrounding area.

    摘要翻译： 用于挺杆的垫片用于内燃机中的阀操作机构。 在凸轮可滑动接触的垫片的表面上，设置有多个孔，其中放置润滑油。 当油膜通过与凸轮滑动接触而在表面上消失时，油从孔中溢出到表面上。 通过增加垫片表面的保油能力，减小摩擦阻力，从而防止垫片和凸轮中的磨损。 孔可以填充润滑固体，例如二硫化钼或塑料，例如聚乙烯，硅树脂和特氟隆TM。 当孔从垫片的表面延伸时，孔的直径可能变大，从而防止固体材料从孔中移位。 垫片表面上的孔的密度也可以变化。 在垫片表面的中心区域的孔的密度可以大于周围区域的密度。

    MAGNESIUM-LITHIUM ALLOY, ROLLED MATERIAL, MOLDED ARTICLE, AND PROCESS FOR PRODUCING SAME
    4.
    发明申请
    MAGNESIUM-LITHIUM ALLOY, ROLLED MATERIAL, MOLDED ARTICLE, AND PROCESS FOR PRODUCING SAME 有权
    镁合金，轧制材料，成型制品及其制造方法

    公开(公告)号：US20120227868A1

    公开(公告)日：2012-09-13

    申请号：US13395053

    申请日：2010-09-10

    申请人： Kenki Kin ,  Takeki Matsumura ,  Shinji Namba ,  Shinichi Umino ,  Takayuki Goto

    发明人： Kenki Kin ,  Takeki Matsumura ,  Shinji Namba ,  Shinichi Umino ,  Takayuki Goto

    IPC分类号： B32B15/04 ,  C23C22/05 ,  C22C23/00

    CPC分类号： C22F1/06 ,  C22C23/00 ,  C23C22/34 ,  C23C22/78 ,  C23G1/12

    摘要： The present invention provides a very lightweight magnesium-lithium alloy which has both corrosion resistance and cold workability balanced at high levels, a certain degree of tensile strength, low surface electrical resistivity, as well as a rolled material and a formed article made of the alloy, and a method of producing the alloy, by means of a magnesium-lithium alloy containing not less than 10.5 mass % and not more than 16.0 mass % Li, not less than 0.50 mass % and not more than 1.50 mass % Al, and the balance of Mg, and having an average crystal grain size of not smaller than 5 μm and not larger than 40 μm, a tensile strength of not lower than 150 MPa, and a surface electrical resistivity of not higher than 1Ω as measured with an ammeter by pressing a cylindrical two-point probe with a pin-to-pin spacing of 10 mm and a pin tip diameter of 2 mm (contact surface area of one pin is 3.14 mm2), against an alloy surface at a load of 240 g.

    摘要翻译： 本发明提供了一种非常轻质的镁 - 锂合金，其具有高水平平衡的耐腐蚀性和冷加工性，一定程度的拉伸强度，低表面电阻率，以及轧制材料和由合金制成的成形制品 以及通过含有不低于10.5质量％且不大于16.0质量％Li，不小于0.50质量％且不大于1.50质量％Al的镁 - 锂合金的合金的制造方法， 平衡的Mg，平均结晶粒径为5μm以上且40μm以下，拉伸强度为150MPa以上，表面电阻率为1以上且OHgr以下。 用电流表测量时，通过按下一个圆柱形的两点探针，其中针脚间距为10mm，针尖直径为2mm（一个针的接触表面积为3.14mm 2），相对于合金表面 负荷240克。

    Method of preparing composite sintered body
    6.
    发明授权
    Method of preparing composite sintered body 失效
    复合烧结体的制备方法

    公开(公告)号：US5554338A

    公开(公告)日：1996-09-10

    申请号：US423577

    申请日：1995-04-18

    申请人： Hiroshi Sugihara ,  Hiroyuki Ishikawa ,  Tsutomu Uemura ,  Akira Fujiki ,  Hiromasa Imazato ,  Shinichi Umino

    发明人： Hiroshi Sugihara ,  Hiroyuki Ishikawa ,  Tsutomu Uemura ,  Akira Fujiki ,  Hiromasa Imazato ,  Shinichi Umino

    IPC分类号： B22F3/02 ,  B22F1/00 ,  B22F5/12 ,  B22F7/06 ,  B22F7/02

    CPC分类号： B22F1/0077 ,  B22F1/0059 ,  B22F7/062 ,  B22F2001/0066 ,  B22F2998/00 ,  B22F2999/00

    摘要： The invention relates to a method of preparing a composite sintered body having inner and outer portions fitted with each other. The method includes the steps of: (a) preparing an inner powder compact; (b) preparing an outer powder compact; (c) fitting the inner and outer powder compacts with each other so as to prepare a composite powder compact; and (d) sintering the composite powder compact so as to prepare the composite sintered body. The inner and outer powder compacts are respectively selected such that, during the step (d), the amount of growth of the inner powder compact becomes greater than that of the outer powder compact. Each of the inner and outer composite powder compacts is made of one member selected from the group consisting of a wax-type segregation prevention powder mixture and a metal-soap-type segregation prevention powder mixture. At least one of the inner and outer composite powder compacts is made of the wax-type segregation prevention powder. According to the method, the mechanical property of each of the inner and outer portions of the composite sintered body is not limited, and the bonding strength between the inner and outer portions is substantially high.

    摘要翻译： 本发明涉及一种制备具有彼此配合的内部和外部的复合烧结体的方法。 该方法包括以下步骤：（a）制备内粉末成形体; （b）制备外部粉末压块; （c）将内部和外部粉末压块彼此配合，以制备复合粉末压块; 和（d）烧结复合粉末压块以制备复合烧结体。 分别选择内部和外部粉末压块，使得在步骤（d）期间，内部粉末压块的生长量变得大于外部粉末压块的生长量。 内外复合粉末压块由选自蜡型防分离粉末混合物和金属皂型防偏析粉末混合物的一种构成。 内部和外部复合粉末压块中的至少一个由蜡型隔离防止粉末制成。 根据该方法，复合烧结体的内外两部分的机械特性没有限制，内部和外部之间的接合强度基本上高。