SiC—C/C composite material, uses thereof, and method for producing the same
    11.
    发明授权
    SiC—C/C composite material, uses thereof, and method for producing the same 有权
    SiC-C / C复合材料及其制造方法及其制造方法

    公开(公告)号:US06627143B2

    公开(公告)日:2003-09-30

    申请号:US10011060

    申请日:2001-12-06

    IPC分类号: C21C542

    摘要: SiC—C/C composite materials having a suitable kinetic coefficient of friction, good corrosion resistance in strongly oxidizing and corrosive environments, good creep resistance and spalling resistance, and high hardness. The materials are hardly oxidized or abraded even when exposed to high temperatures, while maintaining the excellent impact resistance and light weight of C/C composites. Molten metal pumps using the materials are provided from which components do not dissolve into the molten metal even when used in molten metal and have sufficient thermal impact resistance and oxidation resistance.

    摘要翻译: SiC-C / C复合材料具有合适的动摩擦系数,在强氧化和腐蚀性环境下具有良好的耐腐蚀性,良好的抗蠕变性和抗剥落性,高硬度。 即使暴露在高温下,材料几乎不被氧化或磨损,同时保持C / C复合材料的优异的抗冲击性和轻质量。 使用这些材料的熔融金属泵即使在熔融金属中使用也不会溶解到熔融金属中并且具有足够的耐热冲击性和抗氧化性。

    Fibrous composite material and process for producing the same
    13.
    发明授权
    Fibrous composite material and process for producing the same 失效
    纤维复合材料及其制造方法

    公开(公告)号:US06447893B2

    公开(公告)日:2002-09-10

    申请号:US09308281

    申请日:1999-06-30

    IPC分类号: B32B1800

    摘要: A fiber-composite material (7) is comprised of a yarn aggregate (6) in which yam (2A, 2B) including at least a bundle (3) of carbon fiber and a carbon component other than carbon fiber is three-dimensionally combined and integrally formed without separation from each other; and a matrix made of Si—SiC-based materials (4A, 4B, 5A, 5B) filled between the yarn (2A, 2B) adjacent to each other within the yarn aggregate (6). A method of preparing fiber-composite material is comprised of the steps of: producing bundles (3) of carbon fiber by impregnating a component of powdery carbon into the bundles (3) of carbon fiber, which eventually forms a matrix shape; forming a plastic coat around the bundles (3) of carbon fiber to obtain an intermediate material; molding the intermediate material to obtain a molded product by making the intermediate material into a yarn-shape and laminating a predetermined amount of the material, or burning the molded product to obtain a burned product; holding the molded product or the burned product and Si, at 1100 to 1400° C. in an atmosphere of inert gas; and heating the molded product or the burned product and Si to a temperature from 1450 to 2500° C., to thereby impregnate Si—SiC-based material into the inside of pores of the molded product or the burned product. A light and strong composite material is provided, which has excellent shock resistance, corrosion resistance in a strong oxidation and corrosion environments, creep resistance, spalling resistance, wear resistance, a low friction coefficient and a self-restorative ability by which a defect is healed.

    摘要翻译: 纤维复合材料(7)由纱线聚集体(6)组成,其中包含至少一个碳纤维束(3)和除碳纤维之外的碳成分的纱线(2A,2B)三维组合, 整体形成而不分离; 以及填充在纱线集合体(6)内的彼此相邻的纱线(2A,2B)之间的由Si-SiC系材料(4A,4B,5A,5B)构成的基体。 制备纤维复合材料的方法包括以下步骤:通过将碳粉组分浸渍到最终形成基体形状的碳纤维束(3)中来生产碳纤维束(3); 在碳纤维束(3)周围形成塑料涂层以获得中间材料; 通过将中间材料制成纱线形状并层压预定量的材料,或者烧制成型产品以获得烧制品,来成型中间材料以获得模制品; 在惰性气体气氛中,在1100〜1400℃下保持成型品或烧成品和Si。 并将成型品或烧成品和Si加热至1450〜2500℃的温度,从而将Si-SiC系材料浸渍在成形品或烧成品的孔内。 提供了一种轻而强的复合材料,其具有优异的抗冲击性,在强氧化和腐蚀环境中的耐腐蚀性,抗蠕变性,抗剥落性,耐磨性,低摩擦系数和缺陷被愈合的自恢复能力 。

    Furnace for sintering ceramics, carbon heater used therefor and process
for sintering ceramics
    14.
    发明授权
    Furnace for sintering ceramics, carbon heater used therefor and process for sintering ceramics 失效
    用于烧结陶瓷的炉,用于其的碳加热器和用于烧结陶瓷的工艺

    公开(公告)号:US4912302A

    公开(公告)日:1990-03-27

    申请号:US180064

    申请日:1988-04-11

    摘要: A furnace for sintering non-oxide ceramics, particularly Si.sub.3 N.sub.4, which includes a space for accommodating a ceramic shaped body, carbon heaters arranged around the ceramic shaped body in said space and heat insulating layers of carbon fiber mat that cover the inner walls of the furnace. The furnace also includes sheets composed of laminated graphite leaves having an ash content of not more than 0.3% by weight extendedly provided between the heat insulating layers and the ceramic shaped body. As the carbon heaters, those composed of a high purity graphite having a carbon content of at least 99.9980%, a silicon content of not more than 5 ppm and an iron content of not more than 9 ppm, by weight, are preferably used. A process is also disclosed which utilizes the above apparatuses to protect the shaped body from an influence of carbon fiber dusts liberating from the insulating layers during sintering.

    Structure of divided combustion chamber for internal combustion engine
    15.
    发明授权
    Structure of divided combustion chamber for internal combustion engine 失效
    内燃机分体式燃烧室结构

    公开(公告)号:US4681074A

    公开(公告)日:1987-07-21

    申请号:US876419

    申请日:1986-06-20

    IPC分类号: F02B19/16

    CPC分类号: F02B19/165 Y02T10/125

    摘要: A structure defining a divided combustion chamber of an internal combustion engine, including an upper ceramic member and a lower ceramic member having a passage which abut on each other at an interface to form therein the divided combustion chamber such that the chamber communicates with a main combustion chamber through a passage formed in the lower ceramic member. The upper and lower ceramics members have cutouts formed respectively in their outer surfaces so as to cooperate to constitute at least one external recess which extends across the interface. An expansion member is fitted in each external recess, and has a larger coefficient of thermal expansion than the upper and lower ceramic members, whereby the expansion member keeps the upper and lower ceramic members spaced apart from each other by a predetermined amount at their interface while the engine is operated.

    摘要翻译: 一种限定内燃机的分解燃烧室的结构,包括上部陶瓷构件和下部陶瓷构件,所述内部陶瓷构件和下部陶瓷构件具有在界面处彼此邻接以在其中形成分割的燃烧室的通道,使得腔室与主燃烧 通过形成在下部陶瓷构件中的通道。 上部和下部陶瓷构件具有分别形成在其外表面中的切口,以便配合以构成延伸穿过界面的至少一个外部凹部。 膨胀构件安装在每个外部凹部中,并且具有比上部和下部陶瓷构件更大的热膨胀系数,由此膨胀构件将上部和下部陶瓷构件在其界面处彼此间隔开预定量, 发动机运转。

    Precombustion chamber construction of internal combustion engine
    16.
    发明授权
    Precombustion chamber construction of internal combustion engine 失效
    内燃机预燃室建设

    公开(公告)号:US4616611A

    公开(公告)日:1986-10-14

    申请号:US786487

    申请日:1985-10-11

    IPC分类号: F02B19/00 F02B19/16 B41F13/54

    摘要: A precombustion chamber construction of an internal combustion engine includes an upper ceramic body, a lower ceramic body abutting against the upper ceramic body to form a precombustion chamber communicating through an injection hole with a main combustion chamber of the internal combustion engine, and a metal ring member fitted on outer circumferences of the upper and lower ceramic bodies. According to the invention, the precombustion chamber construction comprises a first key member provided in the upper ceramic body and the metal ring member in the proximity of its upper end, and a second key member provided in the lower ceramic body and the metal ring member in the proximity of its lower end. In this manner, the upper and lower ceramic bodies are prevented from being rotatively moved even if they are subjected to rotating forces caused by vibrations of the engine or explosions of a fuel. The precombustion chamber construction is easy to handle and superior in gas sealing because an air layer is easily formed between the metal ring member and a cavity of a cylinder head for accommodating the precombustion chamber construction.

    摘要翻译: 内燃机的预燃室构造包括上陶瓷体,与陶瓷体抵接的下陶瓷体,形成通过喷射孔与内燃机的主燃烧室连通的预燃室和金属环 构件安装在上下陶瓷体的外周上。 根据本发明,预燃室构造包括设置在上陶瓷体中的第一键构件和在其上端附近的金属环构件,以及设置在下陶瓷体中的第二键构件和金属环构件 其下端的接近。 以这种方式,即使由于发动机的振动或燃料的爆炸引起的旋转力,上下陶瓷体也被防止旋转。 预燃室结构易于处理,气密性优越,因为在金属环构件和用于容纳预燃室结构的气缸盖的空腔之间容易形成空气层。

    Columns for chromatograph
    17.
    发明授权
    Columns for chromatograph 失效
    色谱柱

    公开(公告)号:US07217359B2

    公开(公告)日:2007-05-15

    申请号:US10894222

    申请日:2004-07-19

    IPC分类号: B01D15/08

    摘要: The present invention provides a column for a liquid chromatograph having a honeycomb substrate including holes through which a sample flows and a separation phase filled in the holes. The separation phase is a porous bone structure composed of an inorganic material having open pores formed therein, and the porous bone structure is generated by a sol-gel transition process accompanied by a phase transition.

    摘要翻译: 本发明提供了一种液相色谱柱,其具有蜂窝状基材,该蜂窝基材包括样品流过的孔和填充在孔中的分离相。 分离相是由其中形成有开孔的无机材料构成的多孔骨结构,并且通过伴随相变的溶胶 - 凝胶转变过程产生多孔骨结构。