Variable section covering and / or waterproofing profile

摘要

The invention relates to a method of manufacturing a covering and / or sealing profile for a motor vehicle, said profile comprising a U-shaped clamp, the method comprising providing a die (150) the profile of which comprises a clamp profile and at least one clamp lip profile, a first extruder (101) feeding the clamp profile, and a second extruder (102) feeding the at least part of the clamp lip profile, feeding the first extruder with a first material (121), and feeding the second extruder with a second material (122), and in which, during the extrusion of said profile, a continuous modification of a flow rate at the outlet of the first extruder and / or of the second extruder, between a minimum value strictly greater than zero and a maximum value greater than or equal to the minimum value multiplied by a factor of 1.2. Figure for the abstract: figure 4