| 摘要 |
PURPOSE:To obtain a sheet material which has substantial light shieldability over the entire part and has + or -10mu variance in the sheet thickness by filling the through-holes and recesses of the sheet material for a light shielding vane laminated with CFRP with a resin phase compounded with a black pigment. CONSTITUTION:The continuous fibers of carbon fibers 1 are arrayed in one direction (the fibers appear like bold lines are in the direction parallel with the plane of the figure and the fibers appear like spots are in the direction perpendicular to the plane of the figure). These fibers are included into a matrix resin 2, for example, thermosetting resin such as epoxy resin and unsatd. polyester. These 1, 2 constitute the CFRP3. The three layers of the CFRP3 are laminated in such a manner that the fiber directions intersect orthogonally with each other. The light shieldability does not exist or is deficient of course in the parts where the carbon fibers are coarse. The recesses and through-holes are observed in such parts. The resin phase 4 compounded with the black pigment is filled therein. The parts having no light shieldability are, therefore, eliminated and the lack of the sheet thickness (the cause for variance) is eliminated as well.
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