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204 条记录 (耗时 0.013 秒)

    Sliding member, manufacturing method thereof, mechanical seal ring using sliding member and mechanical seal using mechanical seal ring
    71.
    发明授权
    Sliding member, manufacturing method thereof, mechanical seal ring using sliding member and mechanical seal using mechanical seal ring 有权
    滑动构件，其制造方法，使用滑动构件的机械密封环和使用机械密封环的机械密封

    公开(公告)号：US08916488B2

    公开(公告)日：2014-12-23

    申请号：US12447649

    申请日：2007-10-30

    申请人： Yuusaku Ishimine ,  Kazuaki Takigawa

    发明人： Yuusaku Ishimine ,  Kazuaki Takigawa

    IPC分类号： C04B35/565 ,  C04B35/64 ,  C04B38/00 ,  C04B38/06 ,  F16J15/34 ,  C04B111/20 ,  C04B111/00

    CPC分类号： F16J15/3496 ,  C04B35/565 ,  C04B38/00 ,  C04B38/067 ,  C04B2111/00353 ,  C04B2111/2084 ,  C04B2235/3821 ,  C04B2235/3826 ,  C04B38/0051 ,  C04B38/0054 ,  C04B38/0074

    摘要： A sliding member having a sliding surface comprising a silicon carbide sintered body having a primary phase comprising mainly silicon carbide, and a subphase having a different composition from the primary phase and containing at least boron, silicon and carbon. The ratio of pores having a roundness of 6 μm or less and a pore diameter of 10 to 60 μm with respect to all pores having a pore diameter of 10 μm or more in the sliding surface is 60% or more. This enables retention of good seal properties even in a long-term continuous use. The subphase in the silicon carbide sintered body is preferably granular crystal phases dotted among a plurality of the primary phases. This provides excellent lubricating liquid holding performance as well as excellent thermal conductivity and excellent thermal shock resistance properties.

    摘要翻译： 一种具有滑动表面的滑动构件，其包括具有主要包含碳化硅的主相的碳化硅烧结体，以及与所述主相具有不同组成并且至少含有硼，硅和碳的亚相。 相对于滑动面中的孔径为10μm以上的所有孔，圆度为6μm以下，孔径为10〜60μm的孔的比例为60％以上。 这使得即使在长期连续使用中也能保持良好的密封性能。 碳化硅烧结体中的亚相优选为在多个一相中点缀的粒状结晶相。 这提供优异的润滑液保持性能以及优异的导热性和优异的耐热冲击性能。

    Methods of limiting hydroxyl ion concentrations or their effects in concrete pore solutions to interfere with alkali silica reaction
    72.
    发明授权
    Methods of limiting hydroxyl ion concentrations or their effects in concrete pore solutions to interfere with alkali silica reaction 失效
    限制羟基离子浓度或其在混凝土孔隙溶液中的作用以干扰碱性二氧化硅反应的方法

    公开(公告)号：US08021477B2

    公开(公告)日：2011-09-20

    申请号：US11671765

    申请日：2007-02-06

    申请人： Paul W. Brown ,  Wendy E. Brown

    发明人： Paul W. Brown ,  Wendy E. Brown

    IPC分类号： C04B111/20 ,  C04B111/26

    CPC分类号： C04B41/4922 ,  C04B41/64

    摘要： Methods of reducing hydroxyl ions in concrete pore solutions are provided. Such methods are useful in providing resistance to gels which form in concrete due to the alkali-silica (ASR) reaction. The methods comprise adding a salt or mixture thereof to the concrete, in aqueous or solid form, the salt or salt mixture having cations higher in valence than the anions. The methods also comprise adding an acidic phosphate or a silicon-containing alkoxide to the concrete. The methods further comprise resisting and/or inhibiting ASR in airfield runway concrete pore solutions by applying a soluble salt or a mixture of soluble salts in solution or a deicing salt mixture in situ to the runway concrete. All of the above methods are useful in reducing hydroxyl ions in concrete. Such methods can be used to resist ASR in fresh concrete, in concrete that is setting, or in hardened concrete.

    摘要翻译： 提供了减少混凝土孔溶液中羟基离子的方法。 这种方法可用于提供由于碱 - 二氧化硅（ASR）反应而在混凝土中形成的凝胶的抗性。 所述方法包括以水溶液或固体形式向混凝土中加入盐或其混合物，所述盐或盐混合物的阳离子的价数高于阴离子。 所述方法还包括向混凝土中加入酸性磷酸盐或含硅醇盐。 所述方法进一步包括通过在溶液中的可溶性盐或可溶性盐的混合物或将除冰盐混合物原位施加到跑道混凝土上来抵抗和/或抑制机场跑道混凝土孔溶液中的ASR。 所有上述方法都可用于减少混凝土中的羟基离子。 这种方法可用于抵抗新拌混凝土中的ASR，混凝土中的ASR或硬化混凝土。

    Hardenable mortar composition
    73.
    发明授权
    Hardenable mortar composition 失效
    可硬化砂浆组成

    公开(公告)号：US5749963A

    公开(公告)日：1998-05-12

    申请号：US799272

    申请日：1997-02-13

    申请人： Norbert Arnold ,  Willi Haug ,  Stefan Lind

    发明人： Norbert Arnold ,  Willi Haug ,  Stefan Lind

    IPC分类号： C04B28/00 ,  C04B40/06 ,  C04B103/65 ,  C04B111/20 ,  F16B13/14 ,  C04B24/00 ,  C04B24/04 ,  C04B24/24 ,  C04B24/40

    CPC分类号： C04B40/0666 ,  C04B40/065

    摘要： The hardenable mortar composition consists of a bonding agent component including a hydraulic bonding agent, such as cement, gypsum or mortar, and a paste-forming agent consisting of a liquid solvent inert with respect to the hydraulic bonding agent, and an aqueous component kept separate from the bonding agent component until the two components are mixed to form a hardened mortar composition. The aqueous component includes water and a hydrophobic adsorbent or absorbent. The hydrophobic adsorbent or absorbent is included in the aqueous component to avoid the emergence of the paste-forming agent, which is at the very least unsightly, when the aqueous component is mixed with the bonding agent component. The hydrophobic adsorbent or absorbent binds the paste-forming agent which would otherwise escape during mixing and remains as an inert additive in the setting mortar composition, without reducing the hardness thereof.

    摘要翻译： 可硬化砂浆组合物由包括水泥粘合剂如水泥，石膏或砂浆的粘合剂组分和由相对于水硬性粘合剂为惰性的液体溶剂组成的糊剂形成剂组成，并且水性组分保持分开 从粘合剂组分直到两个组分混合以形成硬化砂浆组合物。 水性成分包括水和疏水吸附剂或吸收剂。 疏水吸附剂或吸收剂包含在水性组分中，以避免当水性组分与粘合剂组分混合时，膏状物形成剂的出现至少不好看。 疏水性吸附剂或吸收剂结合糊剂形成剂，否则在混合过程中会逸出，并且在固化砂浆组合物中作为惰性添加剂保留，而不降低其硬度。

    Water cured concrete mix composition
    78.
    发明授权
    Water cured concrete mix composition 有权

    公开(公告)号：US11485684B2

    公开(公告)日：2022-11-01

    申请号：US16168312

    申请日：2018-10-23

    申请人： KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS

    发明人： Mohammed Ibrahim ,  Mohammed Salihu Barry ,  Mohammed Maslehuddin

    IPC分类号： C04B7/34 ,  C04B28/04 ,  C04B28/32 ,  C04B7/00 ,  C04B28/00 ,  C04B9/12 ,  C04B32/00 ,  C04B111/20 ,  C04B111/28 ,  C04B111/80 ,  C04B103/00 ,  C04B103/30

    摘要： A cementitious blend composition and a concrete mix composition preferable for making concrete resistant to high temperatures and alkaline conditions, particularly for making durable concrete for constructing an alumina digester tank in an aluminum smelter. The cementitious blend composition includes at least one hydraulic cement, silica fume (SF), and natural pozzolan (NP), wherein a weight percent ratio of at least one hydraulic cement:SF:NP in the cementitious blend composition lies in the range of (24-63):(5-44):(32-40) with the sum of the weight percentages of the at least one hydraulic cement, the SF, and the NP not exceeding 100%. The concrete mix composition comprises water and the cementitious blend composition, wherein a weight ratio of the water to the cementitious blend composition is 0.2-0.5, and wherein the concrete mix composition has a content of the cementitious blend composition of 400-550 kg/m3.

    Mineral roofing granules and methods for making them
    79.
    发明授权
    Mineral roofing granules and methods for making them 有权

    公开(公告)号：US11427507B2

    公开(公告)日：2022-08-30

    申请号：US15857742

    申请日：2017-12-29

    申请人： CertainTeed LLC

    发明人： Bojana Lante ,  Tracy Panzarella ,  Rachel Z. Pytel

    IPC分类号： C04B20/10 ,  C04B26/26 ,  C04B28/26 ,  C04B111/20 ,  C04B111/00 ,  C04B111/80

    摘要： The present disclosure relates to roofing granules, such as solar-reflective roofing granules having one or more of low crystalline silica content, high stain resistance and algae resistance. The present disclosure provides a mineral roofing granule having at its mineral outer surface a first fired mixture comprising an aluminosilicate clay, the first fired material having no more than 2 wt % crystalline silica. The present disclosure also provides a mineral roofing granule having a mineral body and a mineral outer surface, the mineral roofing granule having at its mineral outer surface a first fired material, the first fired material being a first fired mixture comprising an aluminosilicate clay; one or more of a feldspar, a sodium silicate and a nepheline syenite; and, optionally, a zinc source.