利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

26 条记录 (耗时 0.02 秒)

    Low-expansion ceramics and method of producing the same
    3.
    发明授权
    Low-expansion ceramics and method of producing the same 失效
    低膨胀陶瓷及其制造方法

    公开(公告)号：US4316965A

    公开(公告)日：1982-02-23

    申请号：US152314

    申请日：1980-05-22

    申请人： Isao Oda ,  Tadaaki Matsuhisa

    发明人： Isao Oda ,  Tadaaki Matsuhisa

    IPC分类号： C04B35/10 ,  C04B35/195 ,  C04B35/46 ,  C04B35/478 ,  C04B35/04 ,  C04B35/18 ,  C04B35/44

    CPC分类号： C04B35/195 ,  C04B35/478

    摘要： The invention relates to low-expansion ceramics, the chemical composition of which consists of 1.2 to 20% by weight of magnesia (MgO), 6.5 to 68% by weight of alumina (Al.sub.2 O.sub.3), 19 to 80% by weight of titanium in terms of titanium oxide (TiO.sub.2), 1 to 20% by weight of silica (SiO.sub.2), and 0.5 to 20% by weight of iron in terms of ferric oxide (Fe.sub.2 O.sub.3); the major component of crystalline phase thereof is a solid solution of magnesium oxide-aluminum oxide-titanium dioxide-silicon oxide-iron oxide; the ceramics have a coefficient of thermal expansion of not more than 20.times.10.sup.-7 (1/.degree.C.) in a temperature range of 25.degree. C. to 800.degree. C., a four-point flexural strength of not smaller than 50 kg/cm.sup.2 at room temperature, and a melting point of not lower than 1,500.degree. C.; and a method of producing low-expansion ceramics comprising the steps of preparing a batch, plasticizing the batch, if necessary, and shaping the batch; drying the body thus shaped; and firing the shaped body at 1,300.degree. C. to 1,700.degree. C., thereby producing ceramics having a coefficient of thermal expansion of not more than 20.times.10.sup.-7 (1/.degree.C.) in a temperature range of 25.degree. C. to 800.degree. C., a four-point flexural strength of not smaller than 50 kg/cm.sup.2 at room temperature, and a melting point of not lower than 1,500.degree. C., and wherein the shape of ceramics is a honeycomb structure.

    摘要翻译： 本发明涉及低膨胀陶瓷，其化学成分由1.2〜20重量％的氧化镁（MgO），6.5〜68重量％的氧化铝（Al 2 O 3），19〜80重量％的钛组成 的二氧化钛（TiO 2），1〜20重量％的二氧化硅（SiO 2）和0.5〜20重量％的以换算成的氧化铁（Fe 2 O 3）计的铁。 其结晶相的主要成分是氧化镁 - 氧化铝 - 二氧化钛 - 氧化硅 - 氧化铁的固溶体; 在25℃〜800℃的温度范围内，陶瓷的热膨胀系数为20×10 -7（1 /℃）以下，四点弯曲强度为50kg / cm2，熔点不低于1500℃。 以及生产低膨胀陶瓷的方法，包括如下步骤：制备批料，如果需要，对批料进行增塑和成型; 干燥身体如此成形; 并将成形体在1300℃〜1700℃下烧成，从而在25℃〜800℃的温度范围内制造热膨胀系数为20×10 -7（1 /℃）以下的陶瓷。 ℃，室温下不低于50kg / cm2的四点弯曲强度，不低于1500℃的熔点，陶瓷的形状是蜂窝结构。

    Method for producing a thermal stress-resistant, rotary regenerator type ceramic heat exchanger
    4.
    发明授权
    Method for producing a thermal stress-resistant, rotary regenerator type ceramic heat exchanger 失效
    用于制造耐热应力旋转式再生器型陶瓷热交换器的方法

    公开(公告)号：US4304585A

    公开(公告)日：1981-12-08

    申请号：US75184

    申请日：1979-09-13

    申请人： Isao Oda ,  Tadaaki Matsuhisa

    发明人： Isao Oda ,  Tadaaki Matsuhisa

    IPC分类号： F28D19/00 ,  F28D19/04 ,  F28F21/04 ,  C03C27/04

    CPC分类号： F28D19/042 ,  F28F21/04 ,  Y10S165/043 ,  Y10T428/24149

    摘要： A thermal stress-resistant rotary regenerator type ceramic heat exchanger comprising a plurality of ceramic honeycomb structural matrix segments bonded by a ceramic binder is produced by extruding a plurality of ceramic honeycomb structural matrix segments, firing the segments, bonding the segments with one another by application of a ceramic binder, said ceramic binder after the subsequent sintering having substantially the same mineral composition as said ceramic matrix segments and the thickness of 0.1 to 6 mm, and a difference in thermal expansion being not greater than 0.1% at 800.degree. C. relative to the ceramic matrix segments, drying the bonded segments, and firing the dried bonded segments.

    摘要翻译： 通过挤出多个陶瓷蜂窝结构基质片段，烧制这些片段，通过应用将片段彼此粘接，制造出包含由陶瓷粘合剂粘接的多个陶瓷蜂窝结构基质片段的耐热应力旋转再生器型陶瓷热交换器 的陶瓷粘合剂，所述陶瓷粘合剂在随后的烧结后具有与所述陶瓷基体片段基本相同的矿物组成，厚度为0.1至6mm，并且热膨胀差在800℃下不大于0.1％。 对陶瓷基质片段进行干燥，干燥接合的片段，并焙烧干燥的接合片段。

    Low-expansion ceramics and method of producing the same
    7.
    发明授权
    Low-expansion ceramics and method of producing the same 失效
    低膨胀陶瓷及其制造方法

    公开(公告)号：US4306909A

    公开(公告)日：1981-12-22

    申请号：US152315

    申请日：1980-05-22

    申请人： Isao Oda ,  Tadaaki Matsuhisa

    发明人： Isao Oda ,  Tadaaki Matsuhisa

    IPC分类号： C04B35/10 ,  C04B35/46 ,  C04B35/478 ,  C04B35/04

    CPC分类号： C04B35/478

    摘要： The present invention relates to low-expansion ceramics essentially consisting of 1.5 to 20% by weight of magnesia (MgO), 8 to 68% by weight of alumina (Al.sub.2 O.sub.3), 24 to 80% by weight of titanium in terms of titanium oxide (TiO.sub.2), and 0.5 to 20% by weight of iron in terms of ferric oxide (Fe.sub.2 O.sub.3), that major component of crystalline phase thereof is a solid solution of magnesium oxide-aluminum oxide-titanium dioxide-iron oxide, and that the ceramics has a coefficient of thermal expansion of not more than 20.times.10.sup.-7 (1/.degree. C.) in a temperature range of 25.degree. C. to 800.degree. C. and a melting point of not lower than 1,500.degree. C., said coefficient of thermal expansion being maintained even after exposure 1,100.degree. C. for 1,000 hours, and a method of producing low-expansion ceramics comprising steps of preparing a batch of compounds so as to provide a chemical composition of 1.5 to 20% by weight of magnesia (MgO), 8 to 68% by weight of alumina (Al.sub.2 O.sub.3), 24 to 80% by weight of titanium in terms of titanium oxide, and 0.5 to 20% by weight of iron in terms of ferric oxide (Fe.sub.2 O.sub.3); plasticizing the batch if necessary and shaping the batch; drying the body thus formed and firing the formed body at 1,300.degree. C. to 1,700.degree. C. for 0.5 to 48 hours, thereby having a coefficient of thermal expansion of less than 20.times.10.sup.-7 (1/.degree. C.) in a temperature range of 25.degree. C. to 800.degree. C. and a melting point of not lower than 1,500.degree. C., said coefficient of thermal expansion being maintained even after exposure at 1,100.degree. C. for 1,000 hours, wherein the shape of ceramics is a honeycomb structure.

    摘要翻译： 本发明涉及基本上由氧化镁（MgO）1.5〜20重量％，氧化铝（Al 2 O 3）8〜68重量％，氧化钛换算为24〜80重量％的钛的低膨胀性陶瓷 TiO 2）和0.5〜20重量％的以氧化铁（Fe 2 O 3）计的铁，其结晶相的主要成分是氧化镁 - 氧化铝 - 二氧化钛 - 氧化铁的固溶体，陶瓷具有 在25℃至800℃的温度范围内，热膨胀系数不大于20×10 -7（1 /℃），熔点不低于1500℃，所述热导率 即使在1100℃下曝光1000小时后，也保持膨胀，以及生产低膨胀陶瓷的方法，包括制备一批化合物的步骤，以提供1.5至20重量％的氧化镁（MgO）的化学组成， ，8〜68重量％的氧化铝（Al 2 O 3），24〜80重量％的钛 氧化钛，以氧化铁（Fe 2 O 3）换算为0.5〜20重量％的铁。 必要时对批料进行塑化并成型; 干燥所形成的本体，并将成形体在1300℃至1700℃下焙烧0.5至48小时，从而在温度范围内具有小于20×10 -7（1 /℃）的热膨胀系数 25℃至800℃，熔点不低于1500℃，即使在1100℃下暴露1000小时之后，仍保持热膨胀系数，其中陶瓷的形状为蜂窝状 结构体。

    Cordierite ceramic
    8.
    发明授权
    Cordierite ceramic 失效
    堇青石陶瓷

    公开(公告)号：US4280845A

    公开(公告)日：1981-07-28

    申请号：US107701

    申请日：1979-12-27

    申请人： Tadaaki Matsuhisa ,  Shigeo Soejima

    发明人： Tadaaki Matsuhisa ,  Shigeo Soejima

    IPC分类号： B01D53/86 ,  B01J21/14 ,  C01B33/20 ,  C04B35/195 ,  C04B35/18 ,  C04B35/20

    CPC分类号： B01J21/14 ,  C04B35/195 ,  Y10T428/24149

    摘要： Cordierite ceramic consisting mainly of cordierite in crystal phase after fired and having a mean pore size of 2-50 microns and a thermal expansion coefficient of not more than 16.times.10.sup.-7 (1/.degree. C.) over the range of 25-1000.degree. C. and being produced by starting from a batch including a magnesia raw material with an average particle size of 5-150 microns.

    摘要翻译： 堇青石陶瓷主要由煅烧后结晶相中的堇青石组成，平均孔径为2-50微米，热膨胀系数不大于16×10-7（1 /℃），范围为25-1000℃ 并且通过从包括平均粒度为5-150微米的氧化镁原料的批料开始生产。

    High hardness silicon nitride sintered bodies
    9.
    发明授权
    High hardness silicon nitride sintered bodies 失效
    高硬度氮化硅烧结体

    公开(公告)号：US5015608A

    公开(公告)日：1991-05-14

    申请号：US379704

    申请日：1989-07-12

    申请人： Tadaaki Matsuhisa ,  Issei Hayakawa

    发明人： Tadaaki Matsuhisa ,  Issei Hayakawa

    IPC分类号： C04B35/584 ,  C04B35/593

    CPC分类号： C04B35/584

    摘要： A high hardness silicon nitride sintered body which includes 10.about.50% of a .alpha.-Si.sub.3 N.sub.4 per total weight of silicon nitride and has a Knoop hardness of not less than 15.5 Gpa, and is use as a bearing material or the like.

    摘要翻译： 一种高硬度的氮化硅烧结体，其每一氮化硅的总重量包含10％的α-Si 3 N 4，其Knoop硬度不小于15.5Gpa，并用作轴承材料等。

    Detecting flaws formed in surfaces of rotating members with ultrasonic waves
    10.
    发明授权
    Detecting flaws formed in surfaces of rotating members with ultrasonic waves 失效
    用超声波检测旋转构件表面形成的缺陷

    公开(公告)号：US5005417A

    公开(公告)日：1991-04-09

    申请号：US423723

    申请日：1989-10-20

    申请人： Keiji Kawasaki ,  Michio Sekiguchi ,  Tadaaki Matsuhisa

    发明人： Keiji Kawasaki ,  Michio Sekiguchi ,  Tadaaki Matsuhisa

    IPC分类号： G01N29/04 ,  G01N29/24 ,  G01N29/26

    CPC分类号： G01N29/2456 ,  G01N29/041 ,  G01N29/26 ,  G01N2291/0421 ,  G01N2291/0422 ,  G01N2291/044 ,  G01N2291/101 ,  G01N2291/265 ,  G01N2291/2696

    摘要： In a method of detecting defects formed in a surface or in the vicinity thereof of a ball of a bearing by means of an ultrasonic wave, the ball and a probe for projecting an ultrasonic wave toward the ball and receiving an ultrasonic wave reflected from the detects are arranged in water in such a manner that a center axis of the probe is deviated from a normal axis of the ball which passes through a center of the ball and extends in parallel with the center axis of the probe by such a displacement amount that the ultrasonic wave refracted by the ball propagates along the surface of ball. The ball is rotated about a horizontal axis perpendicular to the normal axis, and the ball and probe are rotated relative to each other about a center axis of the ball which is perpendicular both to the normal axis and horizontal axis of the ball, so that the whole surface of the ball is scanned automatically with the ultrasonic wave.

    摘要翻译： 在通过超声波检测轴承的球面的表面或其附近形成的缺陷的方法中，所述球和用于向所述球投射超声波并接收从所述检测体反射的超声波的探针 以这样的方式布置在水中，使得探针的中心轴线偏离通过球的中心的球的法线轴线，并且与探针的中心轴线平行延伸这样的位移量， 球折射的超声波沿着球的表面传播。 球围绕垂直于法线轴线的水平轴旋转，球和探针相对于球的中心轴线相对于球的中心轴线旋转，该中心轴线与球的法线轴线和水平轴线垂直，因此， 用超声波自动扫描球的整个表面。