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    • 1. 发明申请
    • LID FOR UNDERGROUND STRUCTURE
    • 用于地下结构
    • WO2004101900A9
    • 2005-02-03
    • PCT/JP2004006388
    • 2004-05-12
    • HINODE LTDGONDOU YUKINORIHASEGAWA TOMOKAZUHIDAKA MASAKAZUSHINOHARA NORIOKOGA KENICHITANAKA KAZUMI
    • GONDOU YUKINORIHASEGAWA TOMOKAZUHIDAKA MASAKAZUSHINOHARA NORIOKOGA KENICHITANAKA KAZUMI
    • E02D29/14
    • E02D29/14
    • A lid for an underground structure is constituted of a lid body (10) and a reception frame (20). An inclined surface (11) on an outer periphery of the lid body is fitted in and supported by an inclination surface (21) of an inner periphery of the reception frame. The inclination surfaces (11, 21) of the lid body outer periphery and the reception frame inner periphery have upper inclination surfaces (11a, 21a) and lower inclination surfaces (11b, 21b), respectively. The inclination of the lower inclination surfaces (11b, 21b) is made sharper than that of the upper inclination surfaces (11a, 21a). The lid body (10) is fitted in and supported by the reception frame (20) at the upper inclination surfaces (11a, 21a) and the lower inclination surfaces (11b, 21b), and this prevents the lid body from excessively biting into the reception frame and also prevents the lid body from obliquely biting into the reception frame or from being obliquely placed in the reception frame.
    • 用于地下结构的盖由盖体(10)和接收框架(20)构成。 盖体外周上的倾斜表面(11)装配在接收框架的内周的倾斜面(21)上并由其支撑。 盖体外周和接收框架内周的倾斜面(11,21)分别具有上倾斜面(11a,21a)和下倾斜面(11b,21b)。 下倾斜面(11b,21b)的倾斜度比上倾斜面(11a,21a)的倾斜度更锐利。 盖体(10)在上倾斜面(11a,21a)和下倾斜面(11b,21b)处被接收框架(20)装配并支撑,从而防止盖体过度咬入 接收框架,并且还防止盖体倾斜地咬入接收框架或倾斜地放置在接收框架中。
    • 6. 发明申请
    • REFINED MAGNESIUM MATERIAL AND PROCESS FOR PRODUCING THE SAME
    • 精炼镁材料及其制造方法
    • WO1994006945A1
    • 1994-03-31
    • PCT/JP1993001291
    • 1993-09-10
    • NIPPON KINZOKU CO., LTD.NAKAMURA, TadayoshiTANAKA, Kazumi
    • NIPPON KINZOKU CO., LTD.
    • C22B26/22
    • C22B26/22
    • A process for refining magnesium material, which comprises flame-proofing molten magnesium by adding thereto an alkaline earth metal, and bringing the resultant magnesium into contact with a dross-forming atmosphere by means of a vertical vortex flow to thereby form a thin-film dross on the surface of the molten metal. The dross is adhered to the metal surface so as to enclose therein the impurities ascending by the action of the vortex flow. The drosses are accumulated at the corner of the crucible so as to prevent the redispersion of the impurities. The continuous application of the vortex flow against the molten magnesium causes the thin-film dross to be constantly formed on the surface of the magnesium and adhered thereto so as to enclose the impurities therein each time it is formed. As a result, the molten magnesium is improved in cleanliness or refined. Solidifying the molten magnesium by cooling serves to provide an ingot for casting which is extremely reduced in the porosity peculiar to the addition of an alkaline earth metal. Casting the ingot in turn serves to provide a product having good qualities.
    • 一种精炼镁材料的方法,其包括通过向其中加入碱土金属来防火熔融镁,并通过垂直涡流将所得镁与浮渣形成气体接触,从而形成薄膜渣 在熔融金属的表面上。 浮渣附着在金属表面,以便在其中包围通过涡流的作用而上升的杂质。 渣滓积聚在坩埚的拐角处,以防止杂质的再分散。 涡流对熔融镁的连续施加导致薄膜浮渣在镁表面上恒定地形成并附着在其上,以便每次形成时都会包含杂质。 结果,熔融镁的清洁度提高或精制。 通过冷却来固化熔融镁可提供一种铸造用铸锭,其极少地添加碱土金属所特有的孔隙。 铸造铸锭依次用于提供具有良好品质的产品。