Method For Fastening An Accesory In A Plastic Fuel Tank

摘要

Method for stake-fastening an accessory ( 4 ) into a plastic fuel tank, whereby:-the accessory ( 4 ) is equipped with at least one orifice ( 5 ) which passes right through the accessory ( 4 ); -at least some of the plastic of which the wall of the tank ( 1 ) is made is melted; and-some of the molten plastic is forced through the orifice ( 5 ) of the accessory without becoming detached from the remainder of the molten plastic; -the protruding molten plastic is given an appropriate shape ( 8 ) to obtain a self-formed plastic rivet, and is left to solidify; the size and shape of the orifice ( 5 ) and/or of the solidified plastic ( 8 ) being such that the accessory ( 4 ) is mechanically fastened to the tank by at least some of the solidified plastic ( 8 ), the stake-fastening of the accessory ( 4 ) occurring at the time of manufacture of the tank ( 1 ) through the moulding of a split or at least two-part parison.