| 摘要 |
<p>The invention relates to a method of manufacturing fuel tanks made of polymer material using a blow moulding technique, characterized in that said method involves: offering up at least one sheet form extrudate (11) between two opposing cavities (15, 17) of an open mould (13) the impression of which corresponds to the shape of a tank (1) that is to manufactured; then bringing the two cavities (15, 17) together until the mould is closed; as the two cavities are being moved closer together and before the extrudate (11) comes into contact with one of them, injecting a first fluid between the extrudate and at least one cavity; injecting a second fluid on the opposite side of the extrudate (11) from each cavity, in order to press it firmly against the wall of said cavity; removing the first fluid present between the cavity and the extrudate before the end of injection of the second fluid.</p> |
