| 摘要 |
<p>The articles to be coated are suspended inside a closed chamber equipped with a spray gun which is fed through a tube from an injector. The coloured powder is stored in a hopper with an outlet at the bottom which discharges onto a vibrator platform, and this in turn discharges into the injector. Powered vacuum motors extract the surplus powder from the spray chamber and return it to the supply hopper.</p> |
