| 摘要 |
PROBLEM TO BE SOLVED: To provide a chemical processing device that the chemical processing uniformity is improved, the circuit width is uniformized thereby, the sectional shape of the circuit becomes square or rectangular, and any accident of circuit elimination can be prevented. SOLUTION: Firstly, relating to a chemical processing device, the spraying pressure of a chemical E against a printed circuit board B is successively higher toward a spray nozzle 2 on the center side in the right-to-left width direction G, and successively lower toward the spray nozzles 2 on the right and left sides. Secondly, relating to this chemical processing device, a direction changing device is built in between conveyors and the direction of the printed circuit board B to be carried is changed by 90 deg. along the horizontal plane on the way. Thirdly, in the chemical processing device, a regulation roller to regulate the flow of the chemical E sprayed against the printed circuit board B longitudinally along the carrying direction on an outer surface, is arranged.
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