To provide a manufacturing method of a cryogenic temperature composite material pressure vessel, which is lightweight, has high airtightness and excellent strength characteristics, and capable of inhibiting generation of cracks in cryogenic temperature environment.
The cryogenic temperature composite material pressure vessel has a pressure resistance layer comprising an inner shell 10 and an outer shell 20, and an airtight resin layer 30 formed on an inner face of the inner shell 10. The inner shell 10 is formed of a fiber reinforced resin composite material which is resistant to heat equal or higher than a melting point of the airtight resin layer 30. The airtight resin layer 30 is formed by fusing a thermoplastic airtight resin film on the inner face of the inner shell 10. The outer shell 20 is formed of a fiber reinforced resin composite material molded at a temperature lower than the melting point of the airtight resin layer 30.
COPYRIGHT: (C)2006,JPO&NCIPI
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