| 摘要 |
PURPOSE:To continuously manufacture a hot dipped wire of a uniform section by passing a wire rod to be hot dipped through drawing dies of special structure dipped in molten metal, followed by cooling. CONSTITUTION:Wire rod 2 to be hot dipped enters molten metal bath 1 and passes through brush 8 to remove solder dross deposited on the surface of rod 2. Rod 2 is then passed through drawing dies 6 provided with wire rod drawing-in hole 9 about equal to rod 2 in diameter and wire rod drawing-out hole 10 whose diameter is made larger than the rod 2 diameter by a hot dipping thickness. At this time, the position of rod 2 is set to prevent vibration. The molten metal flows into clearance 11 from molten metal leading pass 12 by the effect of hydrostatic press., and a uniform hot dipped layer of a uniform section is formed round rod 2 in clearance 11. Rod 2 is immediately introduced into refrigerant container 5, quenched with refrigerant 14, and coiled through finish dies 7. |
