Paint coating hardening device, e.g. for automobile body panel, machine housing or furniture, has rinsing bath leading to upper hardening tunnel each filled with different protective gas

摘要

The device has a rinsing bath (18) filled with a first protective gas (40) with a higher molecular weight than air, e.g. carbon dioxide, leading to an upper hardening tunnel (24), the tunnel hood (31) filled with a second protective gas (70) having a lesser density than the first protective gas at a given temperature. An independent claim for a paint coating hardening method is also included.