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JPS59170300A Removing method of surface metallic oxide 失效
标题翻译：表面金属氧化物的去除方法
公开(公告)号：JPS59170300A
公开(公告)日：1984-09-26
申请号：JP4567583
申请日：1983-03-18
申请人： Hitachi Eng Co Ltd , Hitachi Ltd , Tokyo Genshiryoku Sangyo Kenkyusho
发明人： FURUYA YASUMASA , HIRA YASUO , HASEGAWA TAKASHI , MINATO AKIRA , SAWA TOSHIO , USUI HARUO , SUMIDA NOBUO
IPC分类号： G21F9/28 , C25F1/04 , G21F9/00
摘要： PURPOSE: To remove surface metallic oxide from a material to be washed without dissolving said material by bringing a washing liquid of which the reducing power is strengthened by an electrolytic reduction into contact with said material, and impressing a DC voltage on the material as cathode thereby causing cathode polarization.
CONSTITUTION: A material to be washed (piping) 1 from which the metallic oxide on the inside surface is to be removed is connected via a connecting pipe 4 to electrolytic cells 2, 3. An anode 7 and a cathode 8 are disposed via an ion exchange membrane 9 to the cell 2 and a washing liquid 6 contg. a complexing agent or reducing agent is circulated by a pump 5, then electric current is conducted to the anode 7 and the cathode 8 from a DC power source 10 to reduce electrolytically the liquid 6 and to increase the reducing power thereof. On the other hand, only the anode 11 is provided via an ion exchange member 12 in the cell 3 and electric current is conducted from a DC power source 13 to the material 1 as cathode so that the material 1 is brought into cathode polarization. The dissolution of the metallic oxide on the inside surface of the material 1 is thus accelerated by the approximately neutral washing liquid having weak corrosiveness.
COPYRIGHT: (C)1984,JPO&Japio
摘要翻译：目的：为了通过将电解还原作用使还原能力强化的洗涤液与所述材料接触而将所述材料中的表面金属氧化物除去而不溶解所述材料，并将作为阴极的直流电压施加在材料上引起阴极极化。构成：要从其中去除内表面上的金属氧化物的要洗涤的材料（管道）1经由连接管4连接到电解池2,3，阳极7和阴极8经由离子交换膜9到电池2和洗涤液6，络合剂或还原剂通过泵5循环，然后从直流电源10向阳极7和阴极8传导电流，以电解电解液体6并增加其还原能力。另一方面，仅通过电池单元3中的离子交换构件12设置阳极11，并且从直流电源13将电流作为阴极传导到材料1，使得材料1成为阴极极化。金属氧化物在材料1的内表面的溶解因此被具有弱腐蚀性的近似中性的洗涤液加速。

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