vis d'extrusion

CONT: Les vis d'extrusion sont des vis sans fin, du type d'Archimède.
OBS: Les termes «élément de vis» ou «segment de vis» s'emploient dans le cas des vis modulaires.

CONT: The extrusion screw, rotating in a tightly fitting barrel, conveys, heats, and works food ingredients into a continuous plasticized mass. The screw can be a single piece, but a splined shaft which accepts screw sections of varying configurations increases the versatility and reduces the cost of replacing worn sections.