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    • 1. 发明授权
    • Method for hot repairing the inside of a furnace
    • 用于热修复炉内的方法
    • US4436678A
    • 1984-03-13
    • US276636
    • 1981-06-23
    • Yasuo NishikawaHirokuni Takahashi
    • Yasuo NishikawaHirokuni Takahashi
    • F27D1/00F27D1/16
    • F27D1/0006F27D1/1636
    • The invention relates to the method for hot repairing various kinds of pig iron and steel making furnaces wherein a hot repairing material made in the state of slurry by adding 10-50 weight % water to a monolithic refractory comprising refractory and/or carbon-containing granulated particles and a binder is projected onto a worn part necessitating repairs in the high temperature furnace, the water in the projected hot repairing material boiling under the high heat in the furnace whereby said repairing material is not only fully mixed but also permitted to flow into the minutest recesses of the part necessitating repairs, said repairing material being hardened with the termination of the boiling thereby enabling to form in the worn part a fabricated body having high packing, strength and corrosion resistance.
    • 本发明涉及用于热修复各种生铁和炼钢炉的方法,其中通过向包含难熔和/或含碳颗粒的整体耐火材料中加入10-50重量%的水而制成浆料状态的热修复材料 颗粒和粘合剂投射到需要在高温炉中修理的磨损部件上,投入热修复材料中的水在炉中在高温下沸腾,由此所述修复材料不仅完全混合,而且允许流入 所述零件的最小凹部需要修理,所述修复材料随着沸腾终止而硬化,从而能够在磨损部分中形成具有高填料,强度和耐腐蚀性的制造体。
    • 3. 发明授权
    • Magnetic recording medium
    • 磁记录介质
    • US5374480A
    • 1994-12-20
    • US89641
    • 1993-07-12
    • Yasuo NishikawaToshio Ishida
    • Yasuo NishikawaToshio Ishida
    • G11B5/66C09D171/02G11B5/64G11B5/72G11B5/725G11B5/00
    • G11B5/725Y10S428/90Y10T428/265Y10T428/273Y10T428/3154
    • A magnetic recording medium having stable running properties and durability even under the severe environmental conditions of low or high humidity is disclosed. The magnetic recording medium comprises a non-magnetic support and a magnetic layer of a thin ferromagnetic metal film formed thereon, wherein the thin ferromagnetic metal film has thereon at least one member selected from fluorine-containing multi-chain type compounds represented by the following general formula (I):(P).sub.m Q(R).sub.n (I)wherein Q represents (m+n) valent organic residue; R represents a monovalent group comprising a fluoropolyether chain; P represents a monovalent oxo-acid derivative group or a monovalent group which is a salt of an oxo-acid derivative; m represents an integer of 1 or more; and n represents an integer of 2 or more.
    • 公开了即使在恶劣的环境条件下也具有稳定的运行特性和耐久性的磁记录介质。 磁记录介质包括非磁性载体和形成在其上的薄铁磁性金属膜的磁性层,其中薄铁磁性金属膜上具有至少一种选自以下通式表示的含氟多链型化合物 式(I):(P)mQ(R)n(I)其中Q表示(m + n)价有机残基; R表示包含氟聚醚链的一价基团; P表示一价含氧酸衍生物基团或作为含氧酸衍生物的盐的一价基团; m表示1以上的整数, n表示2以上的整数。