PURPOSE: The title adhesive material capable of joining parts firmly with certainty, improving the productivity, and automating the joining operation of various parts, prepared by molding a hot-melt resin into the chips corresponding to the joint surface.

CONSTITUTION: The hot-melt adhesive materials a and b molded into the shape corresponding to the joint surface are inserted into a given position of the plastic base 8 and case 10 before the assembling of the condenser 9 and the ferrite disk 11. The parts 9 and 11 are then assembled to insert the materials, which are heat- treated and molten to adhere to the joint surface. The hardened resin provides the firm joining without staining the surroundings.