| 摘要 |
PURPOSE:To prevent the risk of ignition and the contamination of the equipment by providing a heater excepting the just under zone of a printing board and by arranging the drop receiver of flux on the just under zone. CONSTITUTION:A heater 3 is respectively provided at both sides avoiding the just under zone of the printing board 1 to be transferred. The belt conveyor 6 having the width wider than the width of the board 1 is provided on the just under zone of the board 1 and the moving section thereof is taken from the flux coating upto the completion of the preheating. The one end of the conveyor 6 is made to be dipped into a cleaning tank by bending it to the lower part. The risk of ignition is eliminated and the conveyor 6 is automatically cleaned with this mechanism because of the flux being not dropped directly on the heater 3 during the heating. The contamination of the equipment can therefore be prevented as well.
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