Method for monitoring quality of sealing between two metallic components i.e. body parts, of motor vehicle, involves determining luminescent areas on non-subjecting side of seal by partial drying of fluid luminance agent

摘要

The method involves subjecting sealing with a fluid luminance agent at a single side. Another sealing side is excited for luminance. Luminescent areas on a non-subjecting side of the seal are determined by partial drying of the fluid luminance agent for increasing concentration of the fluid luminance agent, which is not perceived by a sealing observer. An UV-radiation sensitive fluorescence agent is utilized as the luminance agent. The single sided subjecting is implemented by providing of high pressure on the subjected side and/or by providing of low pressure on the non-subjecting side.