| 摘要 |
A method for manufacturing a plugged silicon carbide filter with high impact resistance is provided to produce the filter at low cost by using carbon fiber cheaper than silicon carbide fiber and to increase porosity of the filter by excluding an extrusion method. A method for manufacturing a plugged silicon carbide filter with high impact resistance comprises the steps of: applying a ceramic sealing material(2) on the upper part of one end of a flat carbon fiber sheet(1); laminating a corrugated carbon fiber paper(3) on the flat carbon fiber sheet; applying a ceramic sealing material(2') on the upper part of the corrugated carbon fiber sheet disposed on the opposite end and the end of the flat carbon fiber sheet coated with the ceramic sealing material; laminating a flat carbon fiber sheet(1') on the corrugated carbon fiber sheet; forming a laminate obtained by laminating the flat and corrugated carbon fiber sheets in turn, by repeating from the second step to the fourth step; and dipping the laminate in the slurry containing silicone powder, phenol resin, and alcohol and then drying the laminate; cutting the laminate dipped in the slurry, putting the cut laminate into a mold, and then filling up a gap between the laminate and the mold with the mixture of alpha-SiC(Silicon Carbide) powder and silicone powder; and thermally treating the laminate under inert atmosphere. |
