Abrégé

Systems, devices, and methods are described for extruding materials. In certain embodiments, one or more hollow billets are loaded onto an elongate mandrel bar and transported along the mandrel bar to a rotating die. The billets are transported through fluid clamps, which engage the mandrel bar and provide cooling fluid to the mandrel bar tip, and through mandrel grips, which engage the mandrel bar and prevent the mandrel bar from rotating. One or more press-rams advance the billets through a centering insert and into the rotating die. A quench assembly is provided at an extrusion end of the extrusion press to quench the extruded material. A programmable logic controller may be provided to control, at least in part, operations of the extrusion press system.

Classes IPC  ?

• B21C 23/08 - Fabrication de fils, de barres, de tubes
• B21C 25/08 - Matrices ou mandrins à ouverture variable pendant l'extrusion, p. ex. pour faire des pièces coniquesCommande de l'ouverture
• B21C 29/04 - Refroidissement ou chauffage des produits extrudés ou des parties de la presse d'extrusion des têtes de presses, des filières, ou des mandrins
• B21C 31/00 - Dispositifs de commande pour extrusion du métal, p. ex. pour réguler la vitesse d'extrusion ou la température du métalDispositifs de mesure, p. ex. pour la température du métal, combinés à des presses d'extrusion ou spécialement adaptés pour être utilisés en association avec ces presses
• B21C 35/04 - Coupage ou enlèvement des déchets

Abrégé

Systems, devices, and methods for continuous extrusion of material billets are provided. A die assembly for press extrusion of a material includes a plurality of die plates forming a die body. The die body has an entrance and an exit having a diameter smaller than the entrance, with a tapered surface between the entrance and the exit. Each die plate has a center bore with a tapered interior surface, and the interior surfaces form the tapered surface that extends from the entrance to the exit. A base is coupled to the die body, and rotation of the base causes rotation of the die body. A billet pressed into the die body is heated by friction between the interior surface and an outer surface of the billet. The billet is heated to a deformable temperature and is extruded into a tube product as the billet is pressed from the entrance to the exit of the die body.

Classes IPC  ?

• B21C 23/08 - Fabrication de fils, de barres, de tubes
• B21C 25/08 - Matrices ou mandrins à ouverture variable pendant l'extrusion, p. ex. pour faire des pièces coniquesCommande de l'ouverture
• B21C 29/04 - Refroidissement ou chauffage des produits extrudés ou des parties de la presse d'extrusion des têtes de presses, des filières, ou des mandrins