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    • 41. 发明公开
    • ZINC OXIDE-CONTAINING WASTE PROCESSING METHOD
    • 含锌氧化物的废物处理方法
    • EP0889141A1
    • 1999-01-07
    • EP97902666.3
    • 1997-02-12
    • AICHI STEEL WORKS, LTD.TOYOTA JIDOSHA KABUSHIKI KAISHAToyokin Co., Ltd.
    • HARA, ToshikatuSASAMOTO, HirohikoOKADA, YujiSUZUKI, Kazuhiro
    • C22B7/02C22B13/02C22B19/04
    • C22B19/04C22B7/001C22B7/02C22B13/025C22B19/30Y02P10/214Y10S75/961
    • A treating method of recovering zinc in the metal state from a waste containing the zinc in the oxide state, lead, chlorine, fluorine, and water comprising a mixing process 90 of obtaining a to-be-treated mixed material 70 by mixing a steel dust 7 and a reducing material 8 together; a chlorine recovery process 91 of recovering the chlorine and the water by heating the to-be-treated mixed material 70; a lead recovery process 92 of recovering fluorine and lead by heating the to-be-treated mixed material 70 under vacuum; a zinc recovery process 93 of recovering metallic zinc by heating the to-be-treated mixed material 70 at a temperature higher than that in the lead recovery process 92 with the vacuum state maintained so as to reduce and vaporize zinc; and a residue recovery process 94 of recovering a residue 79 of the to-be-treated mixed material 70. This construction allows the metallic zinc to be recovered at a high purity from a zinc oxide-containing waste and an on-site treatment to be accomplished.
    • 从含有氧化态的锌,铅,氯,氟和水的废物中回收处于金属状态的锌的处理方法,其包括混合工序90,该混合工序90通过混合钢粉尘来获得被处理混合材料70 7和还原材料8一起; 通过加热被处理混合材料70来回收氯和水的氯回收工序91; 通过在真空下加热待处理混合材料70来回收氟和铅的铅回收过程92; 锌回收工序93,在维持真空状态的状态下,以比铅回收工序92高的温度对被处理混合材料70进行加热来回收金属锌,使锌还原,气化; 以及回收待处理混合材料70的残留物79的残余物回收过程94.这种结构允许从含氧化锌废物中回收高纯度的金属锌并进行现场处理 实现。
    • 45. 发明公开
    • Bolster apparatus for press-forming workpieces
    • 用于压制成型工艺的工艺和适用于该工件的BOLSTER装置
    • EP0367113A3
    • 1991-04-03
    • EP89119919.2
    • 1989-10-26
    • AICHI STEEL WORKS, LTD.
    • Takeuchi, Hajime
    • B21D43/05B21J13/08B21J13/03
    • B21D43/055B21J13/085B21K27/04
    • This invention relates to a process for press-forming workpieces and a bolster apparatus for the same. The process employs a first bolster apparatus comprising a die holding portion and a transfer, and a second bolster apparatus comprising a die holding portion and transfer. The process comprises the steps performed sequentially: an exchanging step of removing the first bolster apparatus from a bolster mounting portion of a pressing apparatus and mounting the second bolster apparatus to a bolster mounting portion of the pressing apparatus, thereby exchanging the first bolster apparatus with the second bolster apparatus; and a press-forming step of press-forming second workpieces with the second dies held in the second bolster apparatus by operating the pressing apparatus. The process and the bolster apparatus improve the productivity, and are advantageous when producing various types of products by the small lot, because the transfer can be exchanged simultaneously with the exchange of the bolster apparatuses. In addition, the bolster apparatus has done away with the base for the transfer, because the transfer (2,3) is incorporated in the bolster apparatus.
    • 48. 发明专利
    • DE69534427D1
    • 2005-10-13
    • DE69534427
    • 1995-12-26
    • AICHI STEEL WORKS LTD
    • HONKURA YOSHINOBUYOKOYAMA TAKASHIFUJII HIDEKITANAKA YOSHINOBU
    • A61C8/00A61C13/235
    • A denture attachment is planted in a denture base in such a manner as to oppose a keeper (103) made of a soft magnetic substance, and clamped by the keeper (103) through magnetic attraction. The attachment comprises at least plate-like three yokes made of a soft magnetic substance and at least two plate-like magnets the N and S poles are oriented in the direction of the thickness of the attachment. In the drawing, the attachment comprises a center yoke (10), a first magnet (1), a second magnet (2), a first side yoke (11) and a second side yoke (12). The magnetic poles of the first and second magnet (1, 2) on both sides of the center yoke (10) are characteristically opposed to one another. Therefore, an independent magnetic loop is formed for each magnet. Because of this novel structure, the magnetic force is about twice stronger than conventional while the denture has a compactness required generally. Spacers (21 and 22) made of a non-magnetic substance may cover the surfaces of both magnets (1 and 2) in contact with the keeper (103), and a casing (3) made of a non-magnetic substance may cover the entire portion other than the surfaces in contact with the keeper so as to improve both corrosion resistance and wear resistance.