HARDNESS MEASUREMENT METHOD OF A BONDED JOINT, CAPABLE OF IMPROVING THE RELIABILITY AND APPLICATION PROPERTY OF LARGE CONSTRUCTION

摘要

PURPOSE: A hardness measurement method of a bonded joint, capable of improving the reliability and application property of large construction, is provided to conveniently inspect and control quality by measuring the hardness of the bonded joint.;CONSTITUTION: A hardness measurement method of a bonded joint is as follows. A first probe(52) and a second probe(54) of an extinction coefficient measuring device(50) are contacted to metal sheet(10,20,30). Heat energy is added to a thermosetting adhesive layer(40) in order to liquefy a thermosetting adhesive layer. The AC voltage is applied through the first probe and the second probe of the extinction coefficient measuring device. The extinction coefficient of the thermosetting adhesive layer is measured by the extinction coefficient measuring device.;COPYRIGHT KIPO 2011