| 摘要 |
<p>A very economical process for coating both sides of boards, in particular printed circuit boards, with a liquid coating material, includes the insertion of the boards in a turnover device, wherein first one side is coated, then the board is turned over and the other side is coated. Alternatively, the first side is coated, then the board is turned in a stationary turnover device and its second side is then coated. The process is carried out as follows: 1. Coating the first side of the board. 2. Turning over the board. 3. Coating the second side of the board. 4. Drying both sides together. The board is held or supported during the process by two of its opposite edges.</p> |
