| 摘要 |
<p>A rotary atomizing electrostatic coating apparatus includes a plurality of paint nozzles (14, 15, 16) and a solvent nozzle (17). Each paint nozzle (14, 15, 16) communicates uniquely with a respective paint source (33, 34, 35) separate by respective paint passages which are pathwise separate from each other. In each paint passage, a respective paint valve (27, 28, 29) is installed. When changing a painting color according to the present invention, the paint filling the operating paint nozzle and the paint passage connected thereto is not washed out by a washing solvent, so that the amount of paint wasted when changing the painting color is decreased to substantially zero and the working time period for changing the painting color is also shortened. A corresponding method of use of such an apparatus is also disclosed which reduces the amount of paint wasted and the amount of solvent used during a step of switching from a first paint to a second paint.</p> |
