| 摘要 |
PURPOSE:To provide a means for easily checking that a flux gushes from a spray nozzle in the spray type flux applying method for applying a flux to a circuit board. CONSTITUTION:A coloring liquid supply tank 8 for supplying a coloring liquid 7 is provided in the middle of a hose 6 connecting a flux supply tank 4 for supplying the flux 1 of a flux applying device 3 and the spray nozzle 5 in the spray type flux applying method for applying the flux 1 to the circuit board 2. The valve of a washing liquid supply tank 9 is opened and after the hose 6 is washed with the washing liquid 10, the coloring liquid 7 is injected from the spray nozzle 5 and the flux 1 is injected onto the circuit board 2 after checking that the washing liquid 10 does not exist in the hose 6. |
