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18 条记录 (耗时 0.021 秒)

    Aluminum alloy and method for producing the same
    2.
    发明授权
    Aluminum alloy and method for producing the same 失效
    铝合金及其制造方法

    公开(公告)号：US4818308A

    公开(公告)日：1989-04-04

    申请号：US940168

    申请日：1986-12-10

    申请人： Yusuke Odani ,  Kiyoaki Akechi ,  Nobuhito Kuroishi

    发明人： Yusuke Odani ,  Kiyoaki Akechi ,  Nobuhito Kuroishi

    IPC分类号： C22C1/04 ,  C22C21/04 ,  C22C21/00

    CPC分类号： C22C21/04 ,  C22C1/0416

    摘要： Aluminum alloy comprises 10 to 36 wt % of Si, 2 to 10 wt % of at least one metal selected from the group consisting of Fe, Ni, Co, Cr and Mn, and remainder consisting essentially of aluminum. The aluminum alloy further includes 1.0 to 12 wt % of Cu and 0.1 to 3.0 wt % of Mg. In a method for producing the aluminum alloy the steps comprises preparing powder mixtures including Si, at least one of metal selected from the group consisting of Fe, Ni, Co, Cr and Mn, and remainder consisting essentially of Al, producing aluminum alloy powders, compacting the aluminum alloy powders into a shape and hot working the aluminum alloy powder compact.

    Manufacturing method of super-heat-resisting alloy material
    3.
    发明授权
    Manufacturing method of super-heat-resisting alloy material 失效
    超耐热合金材料的制造方法

    公开(公告)号：US4710345A

    公开(公告)日：1987-12-01

    申请号：US852966

    申请日：1986-04-22

    申请人： Yoshihiko Doi ,  Nobuhito Kuroishi ,  Shigeki Ochi ,  Noboru Uenishi

    发明人： Yoshihiko Doi ,  Nobuhito Kuroishi ,  Shigeki Ochi ,  Noboru Uenishi

    IPC分类号： B22F3/15 ,  B22F3/24

    CPC分类号： B22F3/15

    摘要： A manufacturing method of super-heat-resisting alloy material characterized in comprising the steps of: (1) filling and sealing the powder of Ni-based super-heat-resisting alloy in a rubber mold; (2) subjecting the powder in the rubber mold to cold isostatic pressing; (3) sintering the compact in vacuum or in gas atmosphere at a temperature of 1000.degree. C. or more so that the sintered density increases to 95% or more than the theoretical density; and (4) next, subjecting the sintered compact to hot isostatic pressing.

    摘要翻译： PCT No.PCT / JP85 / 00595 Sec。 一九八六年四月二十二日 102（e）日期1986年4月22日PCT提交1985年10月26日PCT公布。 出版物WO86 / 02669 日期：1986年5月9日。一种超耐热合金材料的制造方法，其特征在于包括以下步骤：（1）在橡胶模具中填充和密封Ni基超耐热合金粉末; （2）将橡胶模具中的粉末进行冷等静压; （3）在1000℃以上的温度下在真空或气体气氛中烧结压块，烧结密度提高至理论密度的95％以上; 和（4）接下来，对烧结体进行热等静压。

    Valve-seat insert for internal combustion engines and its production
    4.
    发明授权
    Valve-seat insert for internal combustion engines and its production 失效
    内燃机阀座插件及其生产

    公开(公告)号：US4671491A

    公开(公告)日：1987-06-09

    申请号：US743934

    申请日：1985-06-12

    申请人： Nobuhito Kuroishi ,  Naoki Motooka ,  Tetsuya Suganuma ,  Akira Manabe

    发明人： Nobuhito Kuroishi ,  Naoki Motooka ,  Tetsuya Suganuma ,  Akira Manabe

    IPC分类号： B22F7/06 ,  C22C33/02 ,  F01L3/22 ,  F02B1/04 ,  B21K1/20 ,  F01L3/00

    CPC分类号： F01L3/22 ,  B22F7/06 ,  C22C33/0285 ,  F02B1/04 ,  F02F2001/008 ,  Y10S29/031 ,  Y10T29/49306 ,  Y10T428/12937

    摘要： A valve-seat insert for internal combustion engines comprises a double-layered, sintered alloy composed of a valve-seat layer on which a valve is seated, and a base layer integrated with the valve-seat layer and adapted to be seated in a cylinder head of an engine. The valve-seat layer is composed of a sintered alloy of a high heat resistance and a high wear resistance having a composition comprising, by weight, 4 to 8% Co, 0.6 to 1.6% Cr, 4 to 8% Mo, 1 to 3% Ni, 0.3 to 1.5% C, 0.2 to 0.6% Ca, and the balance of Fe and inevitable impurities, the additives, Co, Cr and Mo being present mainly in a form of a Co-Cr-Mo hard alloy and a hard Fe-Mo alloy dispersed in the Fe matrix. The base layer is composed of a sintered alloy of a higher heat resistance and a higher creep resistance than those of the valve-seat layer and having a composition comprising, by weight, 11 to 15% Cr, 0.4 to 2.0% Mo, 0.05 to 0.3% C, and the balance of Fe and inevitable impurities. At least the valve-seat layer of the double-layered, sintered alloy is being fusion-infiltrated with copper.

    摘要翻译： 一种用于内燃机的阀座插件，包括一个双层烧结合金，它由阀座上安装的阀座层和与阀座层一体化的基座层组成， 发动机的头。 阀座层由具有高耐热性和高耐磨性的烧结合金构成，其组成包括重量比为4〜8％的Co，0.6〜1.6％的Cr，4〜8％的Mo，1〜3 ％Ni，0.3〜1.5％C，0.2〜0.6％Ca，余量为Fe和不可避免的杂质，添加剂Co，Cr和Mo主要以Co-Cr-Mo硬质合金的形式存在，硬质 Fe-Mo合金分散在Fe基体中。 基层由具有比阀座层高的耐热性和较高的抗蠕变性的烧结合金组成，并且具有重量比为11〜15％的Cr，0.4〜2.0％的Mo，0.05〜 0.3％C，余量为Fe和不可避免的杂质。 至少双层烧结合金的阀座层被铜熔融渗透。

    Sintered hard metals having high wear resistance
    5.
    发明授权
    Sintered hard metals having high wear resistance 失效
    具有高耐磨性的烧结硬金属

    公开(公告)号：US4274876A

    公开(公告)日：1981-06-23

    申请号：US15178

    申请日：1979-02-26

    申请人： Yujiro Kodama ,  Nobuhito Kuroishi ,  Masato Sabao ,  Yasumasa Kureha

    发明人： Yujiro Kodama ,  Nobuhito Kuroishi ,  Masato Sabao ,  Yasumasa Kureha

    IPC分类号： B22F5/00 ,  C22C33/02 ,  C22C38/00

    CPC分类号： C22C33/0278 ,  C22C33/0207 ,  C22C33/0228

    摘要： The invention relates to sintered hard metals obtainable by mixing, pressing and sintering the powders of Cr: 0.2-5%, Ni: 0.5-10%, Mo: 4-12%, Co: 1-10% or C: 0.7-2%, iron powder within the scope of residual Fe, Fe-Mo, Cr-Mo-Co, Mo-Co, Ni-Mo-Cr alloy powders or a carbide powder having Vickers hardness higher than 400 as hard phase components, or calcium fluoride or barium fluoride. The invention has as its object the provision of sintered hard metals having the aforesaid composition for use in sliding members having high wear resistance and processability.

    摘要翻译： 本发明涉及通过混合，压制和烧结Cr：0.2-5％，Ni：0.5-10％，Mo：4-12％，Co：1-10％或C：0.7-2的粉末得到的烧结硬质金属 ％，铁粉中Fe，Fe-Mo，Cr-Mo-Co，Mo-Co，Ni-Mo-Cr合金粉末或维氏硬度高于400的硬质合金粉末作为硬质组分，或氟化钙 或氟化钡。 本发明的目的是提供具有上述组成的烧结硬金属用于具有高耐磨性和加工性的滑动部件。

    Method for producing hot forged material from powder
    7.
    发明授权
    Method for producing hot forged material from powder 失效
    从粉末制造热锻材料的方法

    公开(公告)号：US4321091A

    公开(公告)日：1982-03-23

    申请号：US76947

    申请日：1979-09-19

    申请人： Yoshinobu Takeda ,  Nobuhito Kuroishi ,  Susumu Noji

    发明人： Yoshinobu Takeda ,  Nobuhito Kuroishi ,  Susumu Noji

    IPC分类号： B22F3/14 ,  B22F3/24 ,  C22C33/02 ,  B22F3/00

    CPC分类号： C22C33/02 ,  B22F3/14 ,  B22F3/24 ,  C22C33/0285 ,  B22F2003/026

    摘要： A method for producing a powder forged material comprising 1.4.about.3.5% Si, 0.2.about.0.9% Mn and 1.0.about.2.0% C by weight, the remainder substantially consisting of iron is provided herein. This method consists in (a) pulverizing the swarf of an FCD cast iron mother material and separating and removing graphite microparticles from the mother material to produce a powder body of said mother material having a carbon content of 1.0.about.2.5%; (b) preforming the powder body having the reduced carbon content to a density lower than that of the mother material and applying a lubricant to the preformed body; (c) heating the preformed body at a temperature above the melting point of the mother material but below 1300.degree. C. in a non-carburizing atmosphere and then cooling the preformed body until the temperature of the body is lowered to 1000.degree..about.1100.degree. C. and forging the preformed body in a dye so that the specific gravity is the same or slightly higher than that of the mother material and, finally, (d) subjecting the forged body to a diffusion treatment by heating it above the austenitizing temperature. The present invention also relates to forged materials produced by this method.

    摘要翻译： 一种制造粉末锻造材料的方法，其包含1.4％的差3.5％Si，0.2％的差异为0.9％的Mn和1.0％的2.0重量％，其余基本上由铁组成。 该方法包括（a）粉碎FCD铸铁母材的切屑，并从母材中分离除去石墨微粒，以制备碳含量为1.0％的2.5％的所述母材的粉末体; （b）将具有降低的碳含量的粉末体预先形成的密度低于母材的密度，并将润滑剂施加到预成形体上; （c）在非渗碳气氛下，在高于母料熔点但低于1300℃的温度下加热预制体，然后冷却预成型体，直到体温降至1000℃。 并将预成型体在染料中锻造，使得比重与母材相同或略高，最后，（d）使锻造体通过在奥氏体化温度以上加热进行扩散处理。 本发明还涉及通过该方法制造的锻造材料。

    Dispersion-strengthened heat- and wear-resistant aluminum alloy and process for producing same
    10.
    发明授权
    Dispersion-strengthened heat- and wear-resistant aluminum alloy and process for producing same 失效
    分散强化耐热和耐磨铝合金及其制造方法

    公开(公告)号：US4722751A

    公开(公告)日：1988-02-02

    申请号：US683454

    申请日：1984-12-19

    申请人： Kiyoaki Akechi ,  Nobuhito Kuroishi

    发明人： Kiyoaki Akechi ,  Nobuhito Kuroishi

    IPC分类号： C22C1/04 ,  C22C1/10 ,  C22C32/00 ,  C22C29/02 ,  C22C29/06 ,  C22C29/12 ,  C22C29/16

    CPC分类号： C22C32/0084 ,  C22C1/0416 ,  C22C1/1084 ,  C22C32/0036 ,  C22C32/0052 ,  C22C32/0068

    摘要： A light weight and high strength aluminum alloy and a process for producing such an alloy, which alloy is suitable for forming automotive engine components, including pistons. In a preferred embodiment, 80 to 99.5% by volume of an aluminum alloy powder or a mixed powder composed of pure metal powders or master alloy powders is blended with 0.5 to 20% by volume of at least one of carbon or graphite powder, an oxide powder, a carbide powder and a nitride powder. The blend is then mechanically alloyed, following which the thereby-obtained powder is subjected to working such as by compaction and hot forging, hot pressing, cold isostatic pressing and hot forging, or cold isostatic pressing and hot extrusion. By the use of mechanical alloying, the advantages of a rapidly solidified powder having a supersaturated solid solution and uniform fine crystal grains are attained, and the effect of dispersion-strengthening is brought about by the addition of dispersion particles to the micro structure of the rapidly solidified powder.

    摘要翻译： 一种重量轻，高强度的铝合金和这种合金的制造方法，该合金适用于形成包括活塞在内的汽车发动机部件。 在优选的实施方案中，将80-99.5体积％的铝合金粉末或由纯金属粉末或母合金粉末组成的混合粉末与0.5至20体积％的碳或石墨粉末，氧化物 粉末，碳化物粉末和氮化物粉末。 然后将共混物机械合金化，然后通过压实和热锻，热压，冷等静压和热锻，或冷等静压和热挤压等方式对由此获得的粉末进行加工。 通过使用机械合金化，可以获得具有过饱和固溶体和均匀细晶粒的快速凝固粉末的优点，并且通过将分散粒子添加到快速微结构中而产生分散强化的作用 固化粉末。