The breadth and width of a sheet-like filler material before it is placed in a cell of a honeycomb material is set greater than those of the honeycomb material, and after the placement, peripheral edges of the honeycomb material are fringed with filler materials to prevent a filler material from fal
The breadth and width of a sheet-like filler material before it is placed in a cell of a honeycomb material is set greater than those of the honeycomb material, and after the placement, peripheral edges of the honeycomb material are fringed with filler materials to prevent a filler material from falling out of an end section cell. A liquid adhesive agent is applied to the top of cell walls facing one surface of the honeycomb material, and a surface material is pressed to that surface of the honeycomb material to which the adhesive agent is applied. Then, before the adhesive agent hardens, water-absorbing foam materials are placed in cell spaces by pressing them into the cell spaces from the other surface of the honeycomb material until they are in contact with the adhesive agent. The foam material is quickly adhered to the honeycomb material.
대표청구항▼
1. A honeycomb structure body comprising, A phenol foam sheet (1) inserted into cell spaces of honeycomb (2), a gas permeable surface material (80) and a gas barrier surface material (80′),wherein the gas permeable surface material (80) is pressed against tips of walls of the honeycomb cell, whose n
1. A honeycomb structure body comprising, A phenol foam sheet (1) inserted into cell spaces of honeycomb (2), a gas permeable surface material (80) and a gas barrier surface material (80′),wherein the gas permeable surface material (80) is pressed against tips of walls of the honeycomb cell, whose narrow band area is applied with an emulsion adhesive agent,the phenol foam sheet (1), which is inserted fully into the cell spaces of honeycomb (2) to contact with the emulsion adhesive agent applied on the above area, is made of linked cellular structure characterized by a strong water absorbing ability,and the emulsion adhesive agent is hardened enough to make adhesion in limited spots between the gas permeable surface material (80) and the tips of the wall of the honeycomb cell due to the fact that water contained initially in the emulsion adhesive agent is absorbed by the phenol foam which has the strong water absorbing ability quickly after the phenol foam sheet is inserted to contact with the emulsion adhesive agent. 2. A honeycomb structure body according to claim 1, wherein one more phenol foam sheet (1′) is included, and the two sheets (1,1′) together are inserted into the cells of the honeycomb (2) to make a room (5) of certain depth between the two phenol foam sheets in middle of thickness of the honeycomb,thereby, a sound absorbing characteristic for frequencies ranging from low to high is attained. 3. A honeycomb structure body according to claim 1, wherein height of the honeycomb (2) is greater than thickness of the foam phenol foam sheet (1),so that an upward and/or downward ends of the honeycomb's cell walls make projections (4) by certain length beyond the surface(s) of the phenol foam sheet (1), which enable the adhesive agent applied to only the narrow band area of the tips rather than all over the surface of the phenol foam sheet in order not to damage its permeability. 4. A honeycomb structure body according to claim 1, wherein one more honeycomb (2′) is included, and the phenol foam sheet (1) has thickness greater than total thickness of the two honeycombs (2,2′), and the two honeycombs are pressed into the phenol foam sheet (1) from both sides thereof, leaving an intermediate foam layer (6) where no honeycomb is included,thereby heat flow conducting in the honeycomb is cut, and an adiabatic layer appears there. 5. A honeycomb structure body according to claim 1, wherein size in breadth and width of the phenol foam sheet is greater than those of the honeycomb, so that the honeycomb is surrounded by the edge of the phenol foam sheet after insertion.
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이 특허에 인용된 특허 (4)
Kay Bruce F. (Milford CT), Honeycomb spliced multilayer foam core aircraft composite parts and method for making same.
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