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    • 4. 发明公开
    • Electrochemical machining method and apparatus
    • 电化学加工方法和设备
    • EP1170083A3
    • 2002-09-04
    • EP01116344.1
    • 2001-07-05
    • EBARA CORPORATIONMori, Yuzo
    • Mori, YuzoKobata, ItsukiShirakashi, MitsuhikoSaito, TakayukiToma, Yasushi
    • B23H3/08C25F3/00
    • B23H3/08
    • An electrochemical machining apparatus comprises a machining chamber for holding ultrapure water, a cathode/anode immersed in the ultrapure water held in the machining chamber, and a workpiece holding portion for holding a workpiece at a predetermined distance from the cathode/anode so that a surface, to be machined, of the workpiece is brought into contact with the ultrapure water. The electrochemical machining apparatus further comprises an anode/cathode contact brought into contact with the workpiece held by the workpiece holding portion so that the workpiece serves as an anode/cathode, a catalyst having a strongly basic anion exchange function or a strongly acidic cation exchange function, a power source for applying a voltage between the cathode/anode and the workpiece, and a moving mechanism for relatively moving the workpiece and the catalyst. The catalyst is disposed between the cathode/anode and the workpiece held by the workpiece holding portion.
    • 一种电解加工装置,其特征在于,包括:保持超纯水的加工室;浸渍在保持在加工室内的超纯水中的阴极/阳极;以及保持工件的工件保持部,该工件保持部与阴极/阳极隔开规定的距离, 待加工的工件与超纯水接触。 电化学加工设备还包括与由工件保持部分保持的工件接触的阳极/阴极触点,使得工件用作阳极/阴极,具有强碱性阴离子交换功能或强酸性阳离子交换功能的催化剂 ,用于在阴极/阳极和工件之间施加电压的电源,以及用于使工件和催化剂相对移动的移动机构。 催化剂布置在阴极/阳极和由工件保持部分保持的工件之间。
    • 5. 发明公开
    • Electrolytic machining method and apparatus
    • 维尔法赫恩(Vfrichtung zur elektrolytischen)熊贝通
    • EP1079003A3
    • 2004-01-21
    • EP00118511.5
    • 2000-08-25
    • Mori, YuzoEBARA CORPORATION
    • Mori, YuzoShirakashi, MitsuhikoSaito, TakayukiToma, YasushiFukunaga, AkiraKobata, Itsuki
    • C23F3/00B23H3/08
    • C25F3/00B23H3/08
    • An anode (2) as a workpiece, and a cathode (1) opposed to the anode with a predetermined spacing are placed in ultrapure water. A catalytic material (3) promoting dissociation of the ultrapure water and having water permeability is disposed between the workpiece and the cathode. A flow of the ultrapure water is formed inside the catalytic material, with a voltage being applied between the workpiece and the cathode, to decompose water molecules in the ultrapure water into hydrogen ions and hydroxide ions, and supply the resulting hydroxide ions to a surface of the workpiece, thereby performing removal processing of or oxide film formation on the workpiece through a chemical dissolution reaction or an oxidation reaction mediated by the hydroxide ions. Thus, clean processing can be performed by use of hydroxide ions in ultrapure water, with no impurities left behind on the processed surface of the workpiece.
    • 将作为工件的阳极(2)和与阳极相对的具有预定间隔的阴极(1)放置在超纯水中。 在工件和阴极之间设置促进超纯水的离解并具有透水性的催化材料(3)。 在催化材料内部形成有超纯水的流动,​​在工件和阴极之间施加电压,将超纯水中的水分子分解为氢离子和氢氧根离子,并将得到的氢氧根离子供给到 从而通过化学溶解反应或由氢氧根离子介导的氧化反应进行工件的去除处理或氧化膜形成。 因此,可以通过在超纯水中使用氢氧根离子进行清洁处理,在工件的加工表面上不会留下杂质。