Electricity: electrical systems and devices – Electric charging of objects or materials
Patent
1993-06-07
1994-12-06
Pellinen, A. D.
Electricity: electrical systems and devices
Electric charging of objects or materials
250324, 355219, H01T 1904, B29C 3500
Patent
active
053716493
ABSTRACT:
In a method of corona discharge processing of resin formings surface, excellent corona discharge processing is possible, even if there is a distance between the resin formings and the discharge electrode, by generating a high voltage pulse having a pulse width of 1 .mu.s or more, an average electric field strength of 4 to 20 kv/cm denoted by applied voltage (wave height) versus interelectrode distance, and a pulse frequency of 10 pps or more. This processing is performed by the apparatus which comprises arranging a transfer conveyor to transfer the resin formings, a counter-electrode placed in a down side of the transfer conveyor, a dielectric to cover a surface of the counter-electrode, and a number of discharge electrodes which are arranged in a definite distance above the resin formings along the transfer route.
REFERENCES:
patent: 3668097 (1972-06-01), Eisby
patent: 4836901 (1989-06-01), Manabe et al.
Akutsu Kensuke
Fujii Masatoshi
Hara Takanori
Iwata Akinori
Koge Hirohiko
Krishnan Aditya
Mazda Motor Corporation
Nippon Paint Co. Ltd.
Pellinen A. D.
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