GAS FUEL TANK AND ITS MOLDING METHOD

摘要

PROBLEM TO BE SOLVED: To contrive the reduction of weight and the improvement of durability for in vehicle. SOLUTION: This gas fuel tank is of such a structure that a protecting film of metal or resin for gas permeation is simply formed on the surface of the inner wall of an FRP container shell 7. In addition, a core member 2 forming the inner wall of the container shell 7 is formed of a metal with a lower melting point than the degradation temperature of a material resin with which a reinforcing fiber in impregnated and after being cured. Further, the metal is eluted after curing the material and the material is dried so that the material does not undergo a process in which its moisture is absorbed by the metal to prevent the container shell 7 from becoming qualitatively degraded. Thus a liner is dispensed with to contribute to the reduction of weight and the improvement of durability.