| 摘要 |
PURPOSE: To provide hot dipping equipment, in which it can be prevented that the temperature of a hot-dip coating material is made unstable and the thermal efficiency of the equipment is improved with a simple constitution. CONSTITUTION: An ingot conveying device 7 for carrying the ingot 6 as the hot-dipping material to near a melting furnace 3, in which the hot-dipping object 1 is dipped, is included in an ingot preheating furnace 8, and exhaust gas G of a heating furnace 2 is introduced into the ingot preheating furnace 8 to preheat the ingot 6 to lower than the melting point.
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