| 摘要 |
PROBLEM TO BE SOLVED: To provide a device and a method for repairing a minute defect capable of easily repairing a lining material lined on the inner peripheral surface of an open tank functioning as a water tank, more specifically a lining material of a fuel storage water tank in nuclear power plants by using an underwater curing adhesive agent composition which is prevented from being spattered. SOLUTION: In this minute defect repairing device for repairing, underwater, the minute defect of the lining material lined on the inner peripheral surface of the tank by using the underwater curing adhesive agent composition, a metal partitioned body surrounding the periphery of the minute defect is so formed with a space formed to secure the distance corresponding to "the length of adhesion from the minute defect" necessary for repairing the minute defect with the underwater curing adhesive agent composition that the open surface of the body can be brought into contact with the wall surface of the lining material. An opening into which a filling nozzle for feeding the underwater curing adhesive agent composition is formed in the body at the gravity side upper position. The body is fitted to the periphery of the minute defect through the underwater curing adhesive agent composition fed from the opening. COPYRIGHT: (C)2008,JPO&INPIT
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