| 摘要 |
PURPOSE:To enable simple and uniform surface treatment by placing a looped wire rod horizontally, passing through a processing solution while carrying the wire rod by a roller conveyor, and applying jet flow onto the wire rod from the gap of the conveyor. CONSTITUTION:A looped wire rod W is passed through pickling agent 3 in the inner tank 1a of a pickling tank 1 while carrying the wire rod by a roller conveyor 2 for carrying. At the same time, pickling agent 3 in the outer tank 1b is jetted onto the wire rod W from a blast nozzle 4 under the gap of the conveyor 2 by a pump 5 through a piping 6 and a piping 4 for jetting. The wire rod rings that pass the position of the blast nozzle 4' are lifted up from the surface of the conveyor 2 by the jetting flow, and lapped at a position different from previous position of lapping. Accordingly, pickling is performed uniformly over whole wire rods, and the agent 3 is circulated through tanks 1a, 1b. |
