WELDING WORK, ITS INSPECTION METHOD AND ITS LIGHTING FIXTURE

摘要

PURPOSE:To provide a welding work and its inspection method capable of inspecting the presence or absence of unwelded place in all peripheral weld zone. CONSTITUTION:A through hole 23 diameter about 5mm is pierced beforehand on a butting surface 21 of an outside bottom face 2, by welding a mounting leg part all around, the through hole 23 is confined in a casing 1. The pressure in an inspection casing 4 with covering the through hole 23 air tight from a inside bottom face 2' is adjusted by reducing from the atmospheric pressure or pressurizing, measuring the pressure variation in the inspection casing 4 after pressure adjustment. When the pressure in the inspection casing 4 after pressure adjustment shows a variation outside the measurement error range on a display part, it is found that there is high probability of having a fine unwelded place.