| 摘要 |
The treatment of plate-shaped workpieces (3), in particular circuit boards, with small holes (2) by means of liquid or gaseous agents has been found to be difficult since the fluid flows through the holes (2) only at very low speeds, particularly if the ratio of hole diameter to hole length is very small, thus preventing adequate movement of fluid through the hole. The invention calls for this problem to be solved by causing the workpiece (3), held in a horizontal position, to carry out a composite motion made up of a first, continuous and/or periodic sliding movement along a horizontal path and a second movement consisting of vigorous vibrational oscillations, the two movements being produced independently of each other. The device used to carry out the method includes means for holding the workpieces (3) in a horizontal position and for sliding them continuously and/or periodically along a horizontal path and means for imparting vigourous pulsating movements to the workpieces, plus means for bringing the workpieces in contact with the treatment agent. |
