| 摘要 |
PURPOSE:To improve the heat-resistance to ceramic melt-spray, by using a CFRP as a substrate. CONSTITUTION:A resin is impregnated to a carbon fiber to form a carbon fiber reinforced synthetic resin (CFRP) board 2 with hot press forming. The ceramic is melt-sprayed to the CFRP board 2 to form a ceramic melt-spray film 3 and to constitute a speaker diaphragm 1. Since the thermal deformation of the board 2 at the ceramic melt-spray is suppressed, the speaker diaphragm having excellent sound characteristics is obtained. |
