High strength feldspathic porcelain
    24.
    发明授权
    High strength feldspathic porcelain 失效
    高强度长石瓷

    公开(公告)号:US4717695A

    公开(公告)日:1988-01-05

    申请号:US814508

    申请日:1985-12-30

    Applicant: Isao Oda

    Inventor: Isao Oda

    CPC classification number: C04B33/26

    Abstract: High strength porcelain having an unglazed bending strength of greater than 1,400 kg/cm.sup.2 and consisting essentially of 22-85% by weight of SiO.sub.2, 10-73% by weight of Al.sub.2 O.sub.3, and 1.5-6.5% by weight of K.sub.2 O and/or Na.sub.2 O. The porcelain has a total degree of crystallinity of more than 40% by weight, and a crystalline grain size of not greater than 20 .mu.m, and it is free from defects of larger than 40 .mu.m. The procelain is produced by pulverizing a starting material mixture of quartz-feldspar-alumina system so that 85-95% by weight of particles thereof have a grain size of not greater than 10 .mu.m, calcining the mixture, adding clay-mineral material therein, pulverizing so that the clay-mineral-added mixture contains less than 85% by weight of particles with a grain size of not greater than 10 .mu.m, forming, drying, and firing at 1,100.degree.-1,400.degree. C.

    Abstract translation: 具有大于1400kg / cm 2的无釉弯曲强度的高强度瓷器,基本上由22-85重量%的SiO 2,10-73重量%的Al 2 O 3和1.5-6.5重量%的K 2 O和/或Na 2 O组成 。 该瓷的总结晶度大于40重量%,结晶粒径不大于20μm,没有大于40μm的缺陷。 通过粉碎石英 - 长石 - 氧化铝体系的原料混合物,使得85-95重量%的颗粒具有不大于10μm的粒度,煅烧该混合物,在其中加入粘土矿物材料, 粉碎,使得粘土矿物添加剂混合物含有小于85重量%的粒径不大于10μm的颗粒,在1100-1,400℃下形成,干燥和烧成。

    Sealing composition and sealing method
    25.
    发明授权
    Sealing composition and sealing method 失效
    密封组合物和密封方法

    公开(公告)号:US4326038A

    公开(公告)日:1982-04-20

    申请号:US262794

    申请日:1981-05-11

    Abstract: A sealing composition consisting of 35-50% by weight of aluminum oxide, 35-50% by weight of calcium oxide, 1-10% by weight of yttrium oxide and 1-15% by weight of strontium oxide has a high wettability with alumina ceramics and refractory metal, and further has high heat resistance and resistance against sodium vapor. The sealing composition is excellent for sealing alumina arc tubes for high intensity discharge lamps with ceramics or refractory metal. Included within the scope of the invention is a composition consisting of 40-50% by weight of aluminum oxide, 35-43% by weight of calcium oxide, 3-10% by weight of yttrium oxide and 8-15% by weight of strontium oxide, as well as methods for using the compositions.

    Abstract translation: 由35-50重量%的氧化铝,35-50重量%的氧化钙,1-10重量%的氧化钇和1-15重量%的氧化锶组成的密封组合物具有高的氧化铝的润湿性 陶瓷和难熔金属,并且还具有高耐热性和耐钠蒸汽性。 密封组合物用于密封具有陶瓷或难熔金属的高强度放电灯的氧化铝弧光管是优异的。 包括在本发明范围内的组合物是由40-50重量%的氧化铝,35-43重量%的氧化钙,3-10重量%的氧化钇和8-15重量%的锶组成的组合物 氧化物,以及使用组合物的方法。

    Low-expansion ceramics and method of producing the same
    26.
    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

    CPC classification number: C04B35/478

    Abstract: 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.

    Abstract translation: 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。

    Metallic slide members to be used with ceramic slide members and sliding
assemblies using the same
    27.
    发明授权
    Metallic slide members to be used with ceramic slide members and sliding assemblies using the same 失效
    金属滑动构件用于陶瓷滑动构件和使用其的滑动组件

    公开(公告)号:US4983468A

    公开(公告)日:1991-01-08

    申请号:US326515

    申请日:1989-03-21

    Applicant: Isao Oda

    Inventor: Isao Oda

    Abstract: A metallic slide member is disclosed which is advantageously used in combination with an opponent ceramic slide member. The metallic slide member is capable of forming a metal coat lubricating layer on a sliding surface of the ceramic slid member through a metal at a sliding surface of the metallic slide member being transferred onto the ceramic slide member when the metallic slide member slide relative to the ceramic member. Thereby, excellent wear resistance of the metallic slide member can be maintained with respect to the ceramic slide member.

    Abstract translation: 公开了一种金属滑动构件,其有利地与对手陶瓷滑动构件组合使用。 金属滑动构件能够在金属滑动构件的滑动表面上通过金属在金属滑动构件的滑动表面上形成金属涂层润滑层,该金属滑动构件在金属滑动构件相对于 陶瓷构件。 因此,可以相对于陶瓷滑动构件保持金属滑动构件的优异的耐磨性。

    Slide assemblies
    30.
    发明授权
    Slide assemblies 失效
    幻灯片组件

    公开(公告)号:US4871266A

    公开(公告)日:1989-10-03

    申请号:US135276

    申请日:1987-12-21

    Applicant: Isao Oda

    Inventor: Isao Oda

    Abstract: Slide assemblies, which each include a metallic member and a ceramic member to slide with the metallic member. The metallic member has a sliding surface coated with a mixture consisting essentially of a solid lubricant and a binder. The mixture of the solid lubricant and the binder is a combination selected from the group consisting of LiF+MoO.sub.3, PbO+Cu, MoS.sub.2 +Cu, LiF+Ni--Cr--Mo--Si, and LiF+Co--Mo--Cr--Si. Silicon nitride, sialon, mullite, partially stabilized zirconia, or silicon carbide is preferably used as the ceramic member. The slide assemblies exhibit excellent high frictional resistance and wearing resistance even in dry condition at high temperatures.

    Abstract translation: 公开了滑动组件,其各自包括金属构件和与金属构件一起滑动的陶瓷构件。 金属构件具有涂覆有基本上由固体润滑剂和粘合剂组成的混合物的滑动表面。 固体润滑剂和粘合剂的混合物是选自LiF + MoO 3,PbO + Cu,MoS 2 + Cu,LiF + Ni-Cr-Mo-Si和LiF + Co-Mo-Cr-Si 。 优选使用氮化硅,赛隆,莫来石,部分稳定的氧化锆或碳化硅作为陶瓷构件。 即使在高温下的干燥条件下,滑动组件也表现出优异的高摩擦阻力和耐磨性。

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