Drying furnace and drying method using drying furnace

Abstract

A drying furnace including: a heating portion which heats a coating target having been subjected to electrodeposition coating, wherein (i) the heating portion sets an inner furnace temperature of an upstream of the drying furnace to be lower than a temperature at which moisture in electrodeposition paint boils, (ii) the heating portion sets an inner furnace temperature of a downstream of the drying furnace to be higher than or equal to a glass transition point, (iii) the heating portion locally heats a gap position formed at a member bonding portion of the coating target at the upstream of the drying furnace, and (iv) the heating portion sequentially changes a heated portion from an upper side to a lower side of the coating target when the gap position is locally heated.

Dependencies are inferred from the claim text.