Chemistry: electrical and wave energy – Apparatus – Electrolytic
Patent
1988-06-13
1989-11-14
Valentine, Donald R.
Chemistry: electrical and wave energy
Apparatus
Electrolytic
204225, 204238, 204240, 204DIG9, B23H 310, B23H 726, B23H 912, B23H 736
Patent
active
048805165
ABSTRACT:
An electro-chemical machine supplies pulses to a spaced workpiece and electrode in a working tank through an electrolyte in order to finish the workpiece, while eliminating electrolytic products produced in a gap between the workpiece and electrode by supplying clean electrolyte to the gap. This machine includes: an electrolyte filtering apparatus for removing dirty electrolyte containing electrolytic products from the working tank and filtering it; an electrolyte supplying apparatus for intermittently supplying the filtered electrolyte to the gap through a supply hole formed in the electrode; and a power supply apparatus for supplying the pulses to the workpiece and electrode when the flow of electrolyte to the gap stops. Clean electrolyte can be supplied to the gap almost simultaneously with the removal of dirty electrolyte, and then the finishing work is started. A glossy mirror surface on the workpiece can be automatically obtained by repeating those operations. The removal of dirty electrolyte and the supply of clean electrolyte can also be alternately performed using a common hole formed in the electrode.
REFERENCES:
patent: 3239438 (1966-03-01), Voorhees
patent: 3255097 (1966-06-01), Williams
patent: 3371022 (1968-02-01), Inoue
patent: 3607689 (1971-09-01), Inoue
patent: 4040920 (1977-08-01), Takada et al.
patent: 4040933 (1977-08-01), Andrews
Asaoka Teruo
Iwasaki Yasuhiro
Kuwabara Youhei
Shizuoka Seiki Co. Ltd.
Valentine Donald R.
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