| 摘要 |
PROBLEM TO BE SOLVED: To solve such a problem that a GFRP (Glass Fiber-Reinforced Plastic) layer in a high-pressure tank is weak in strength compared to a CFRP (Carbon Fiber-Reinforced Plastic) layer, and does not contribute to the improvement of the rigidity of the high-pressure tank, and the weight of the high-pressure tank is increased by the GFRP layer which hardly contributes to the improvement of the rigidity, however, when forming the GFRP layer differently from the CFRP layer, it takes a long time for the manufacturing of the high-pressure tank, and consequently, there has been required a high-pressure tank having no GFRP layer.SOLUTION: In a high-pressure tank having a liner being an inner shell, and a reinforcing layer which is formed by winding a fiber bundle on the liner, the reinforcing layer has a portion which has a prescribed thickness from an outer surface of the high-pressure tank and is constituted of the fiber bundle different from the other portion in color.SELECTED DRAWING: Figure 1 |
