Title:
METHOD AND APPARATUS FOR COATING ELECTROSTATIC POWDER
Document Type and Number:
WIPO Patent Application WO/1994/008725
Kind Code:
A1
Abstract:
On the upstream side of an electrostatic powder coating gun (2), corona discharging means (3) and (104) are provided to apply a voltage of the opposite polarity to that of the gun (2). Before the baking-finished surface of objects (20) and (30) are coated with charged powder, ions are neutralized by providing the baking-finished surfaces with electric potentials of the opposite polarity of the charged powder, thus preventing reverse discharge.
Inventors:
OKAMOTO YASUNARI (JP)
YAMAMOTO MASAHIRO (JP)
KUMATA MITSUYOSHI (JP)
YAMAMOTO MASAHIRO (JP)
KUMATA MITSUYOSHI (JP)
Application Number:
PCT/JP1993/001449
Publication Date:
April 28, 1994
Filing Date:
October 07, 1993
Export Citation:
Assignee:
ONODA CEMENT CO LTD (JP)
OKAMOTO YASUNARI (JP)
YAMAMOTO MASAHIRO (JP)
KUMATA MITSUYOSHI (JP)
OKAMOTO YASUNARI (JP)
YAMAMOTO MASAHIRO (JP)
KUMATA MITSUYOSHI (JP)
International Classes:
B05B5/025; B05B5/053; B05B5/08; B05D1/04; B05D1/06; B05D3/14; B05B15/12; (IPC1-7): B05B5/025; B05B5/08; B05D1/06
Foreign References:
| JPS6430674A | 1989-02-01 | |||
| JPS551107B2 | 1980-01-11 |
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