Method for manufacturing high-pressure tank
AssigneeHonda Motor Co., Ltd.
InventorsMasahiro Sashida, Masanori Hori, Kohei Kawashima
Life of this patent
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Abstract
In a method for manufacturing a high-pressure tank, a fiber bundle impregnated with a thermosetting resin base material is wound around an outer surface of a liner in a state where tension is applied to the fiber bundle in a filament winding step. The filament winding step includes a pressure-bonding step and a cutting step. In the pressure-bonding step, a terminal end portion which is a winding end of the fiber bundle is thermocompression-bonded to an outer peripheral portion of the fiber bundle wound around the liner. In the cutting step, a surplus portion of the fiber bundle is cut by a cutting tool.
Claims5
A method for manufacturing a high-pressure tank including a reinforcing layer on an outer surface of a liner having a hollow shape, the method comprising:
- winding a fiber bundle impregnated with a thermosetting resin around the outer surface of the liner in a state where tension is applied to the fiber bundle;
- and
- forming the reinforcing layer by thermally curing the thermosetting resin contained in the fiber bundle wound around the outer surface, wherein
- the winding of the fiber bundle includes:
- pressure-bonding a terminal end portion serving as a winding end of the fiber bundle, to an outer peripheral portion of the fiber bundle wound around the liner for thermocompression-bonding and curing;
- and
- cutting, with a cutting tool, a surplus portion of the fiber bundle that is close to the terminal end portion and is not wound around the liner, and
- wherein the pressure-bonding includes:
- moving a pressing member having an annular holding portion from an outside of the liner toward the terminal end portion, making the pressing member in contact with the terminal end portion, and pressing the terminal end portion toward the liner by the pressing member;
- and
- after the pressing the terminal end portion toward the liner, moving a pressure bonding member from the outside of the liner toward the terminal end portion, making a pressing surface of the pressure bonding member in contact with the terminal end portion inside the holding portion, heating the terminal portion by the pressure bonding member, and thermocompression-bonding the terminal end portion and the outer peripheral portion of the fiber bundle to each other, and
- wherein the cutting includes
- inserting a wedge-shaped pedestal between the surplus portion and the liner, and
- cutting, subsequent to the pressure bonding, the surplus portion against the wedge-shaped pedestal.
Dependencies are inferred from the claim text.