B - Operations – Transporting – 05 – B
Patent
B - Operations, Transporting
05
B
32/16
B05B 5/08 (2006.01) B05D 1/04 (2006.01) B05D 1/06 (2006.01)
Patent
CA 1226430
Abstract Inside the enclosing wall (1) of the electro- static coating plant for applying dry or wet color coatings to electrically conductive surfaces of articles (2) set up in an insulated position is located an electrostatically changeable curtain (9), the charge polarity of which is the same as that of the spraying gun (7) used for the coating operation. The article (2) set up in an insulated position is supplied with opposite polarity, which is necessary for the electrostatic coat- ing, by an inductor arrangement (16) arranged above the article (2), the inductor arrangement (16) applying an electrostatic field produced by means of a peak inductor (19) to an electrically conducting layer (18), which is located on the rear of a casing piece (17) made of insulating material. The charge field radiated from the surface of the casing piece (17) brings the article (2) to be coated, suspended beneath the casing piece (17), to a potential at which the material particles located in the spraying jet (8) of the spraying gun (7) strike both the front and rear surface sections with approximate- ly uniform distribution. The achieved electrostatic guidance of the coat- ing material particles enables both an optimum utilization of the coating material and a speeded-up operating function of the coating plant. (Fig. 1)
461864
Fetherstonhaugh & Co.
Spengler Electronic Ag
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