Chemistry: electrical and wave energy – Processes and products – Electrostatic field or electrical discharge
Patent
1978-09-12
1980-03-11
Williams, Howard S.
Chemistry: electrical and wave energy
Processes and products
Electrostatic field or electrical discharge
204181C, 204299EC, 204300EC, C25D 1324, C25D 1500, C25D 1700
Patent
active
041927281
ABSTRACT:
A method for supplying powder into a coating tank for electrophoretic powder coating comprises a first step for taking out a specified amount of plating bath of which the powder contained therein is reduced as a result of coating work, a second step in which the powder of much the same amount as the reduced amount of the powder is supplied to the plating bath taken out while the plating bath is being agitated to disperse the powder in the plating bath (the first dispersion) to form supplementary plating bath, a third step including the step for second dispersion of the powder in which the powder contained in the supplementary plating bath is further uniformly dispersed and a step for aging the supplementary plating bath with the dispersed powder, and a fourth step for supplying to the coating tank sufficiently aged supplementary plating bath which is obtained from the third step and has a high density of powder which is substantially uniformly dispersed in the supplementary plating bath, and an apparatus is one for executing that method.
REFERENCES:
patent: 3499828 (1970-03-01), Vittorio
patent: 3679615 (1972-07-01), Gilchrist
patent: 3935085 (1976-01-01), Baker et al.
Enomoto Kunio
Kamiyama Satoru
Kikuchi Uhee
Kimura Suguru
Kobori Masanori
Honda Motor Co. Ltd.
Shinto Paint Co. Ltd.
Taikisha Ltd.
Williams Howard S.
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