PROCESS FOR MANUFACTURING A FUEL TANK EQUIPPED WITH AN INTERNAL ACCESSORY

摘要

Process for manufacturing a fuel tank equipped with an internal accessory and having a plastic wall produced from a parison, said process comprising, in order, the following steps: a) the accessory (2) and the molten parison (5) are introduced into a mould (1) so that the accessory (2) is surrounded by the parison (5), said mould comprising cavities (1) equipped with at least one moving part (4); b) a pressurized gas is introduced inside the parison (5) to carry out a pre-blow moulding of said parison; c) the pre-blow-moulded parison (5) is pressed locally against the accessory (2) using the moving part (4) in order to firmly attach the two without piercing the parison (5); d) the mould (1) is closed and the final blow moulding of the parison (5) is carried out by flattening it against the mould (1) cavities using the pressurized gas; and e) the tank is removed from the mould (1).