TECHNIQUE FOR CLEANING AN OBJECT WITH A COMBUSTIBLE CLEANING SOLVENT

摘要

TECHNIQUE FOR CLEANING AN OBJECT WITH A COMBUSTIBLE CLEANING SOLVENT The cleaning of an object, such as a circuit board (11), to remove residues therefrom is accomplished by spraying it with a terpene-based cleaning solvent (16,16') while simultaneously maintaining the object in an environment substantially devoid of oxygen to avoid possible explosion of the mist formed by the cleaning solvent bouncing back from the object. Such spraying may be carried outin an enclosure (24) which is flooded with an inert gas such as nitrogen, or alternatively, the spraying may be carried out within a tank (14') of the cleaning solvent (16') below the level of the solvent in the tank.