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US 9,868,253 B2Granted
Method of manufacturing tank, heat curing method and heat curing apparatus
AssigneeToyota Jidosha Kabushiki Kaisha
InventorSakuma Emori
Life of this patent
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Abstract
A method of manufacturing a tank comprises providing a covered liner by winding a fiber impregnated with a thermosetting resin on a liner; and performing a heat curing process that cures the thermosetting resin by heating the covered liner in a heating furnace. The heat curing process comprises controlling the heating to prevent temperature of the thermosetting resin that is changed by the heating from exceeding a heat resistant temperature of the liner.
Claims6
A method of manufacturing a tank, comprising:
- (a) providing a covered liner by winding a fiber impregnated with a thermosetting resin on a resin liner;
- and
- (b) performing a heat curing process that cures the thermosetting resin by heating the covered liner in a heating furnace, wherein
- the (b) comprises controlling the heating to prevent temperature of the thermosetting resin that is changed by the heating from exceeding a heat resistant temperature of the liner, and wherein
- a second furnace ambient temperature increase rate after a furnace ambient temperature reaches a predetermined temperature, is higher than a first furnace ambient temperature increase rate after a start of the heating and before the furnace ambient temperature reaches the predetermined temperature, the predetermined temperature being a temperature at which rapid self-heating of the thermosetting resin is started.
2 more elements
Dependencies are inferred from the claim text.