Abstract: 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.

Abstract: 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 molding of a split or at least two-part parison.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: Process and device for the extrusion-moulding of hollow bodies made of a thermoplastic, comprising the extrusion of a tubular parison, its deposition via the use of a robot arm in a preforming device which takes it into a lower part of a mold in which the parison is blow-molded in order to produce the hollow body. Certain steps of the process may be carried out in parallel. This process and this device are very suitable for producing hollow bodies of complex three-dimensional geometry with a high productivity.

Abstract: Process and device for the extrusion-moulding of hollow bodies made of a thermoplastic, comprising the extrusion of a tubular parison, its deposition via the use of a robot arm in a preforming device which takes it into a lower part of a mould in which the parison is blow-moulded in order to produce the hollow body. Certain steps of the process may be carried out in parallel. This process and this device are very suitable for producing hollow bodies of complex three-dimensional geometry with a high productivity.