| 摘要 |
<p>The machine includes a main tank provided with an inlet zone and a roller conveyor track near its top. A motor and gears are used to rotate the rollers, which carry each board through the upper part of tank. Near the base of tank are nozzles via which compressed air is blown into the liq. in the tank so the liq. is carried upwards onto the underside of the boards; and baffle plates direct the air upwards. The air nozzles are pref. made of porous polyethylene. Tank pref. contains electric resistance heaters with a thermostat, and also a lamp simplifying inspection via a transparent lid on the tank. Used for mass prodn.</p> |
