A method for the temperature treatment of extrusion tools

Details A method for the temperature treatment of extrusion tools A method for the temperature treatment of extrusion tools

B - Operations, Transporting

21

C

B21C 29/04 (2006.01)

Patent

CA 2626093

Method upon heating of extrusion tools (1) for the extrusion of metal into a profile and which extrusion tool is formed by an internal tool (5) that is receivable by a tool ring (4) and that has the intended hole-profile openings (6). In that connection, the entire extrusion tool (1) is heated, after which the temperature of the tool ring (4) only is lowered before subsequent introduction of the extrusion tool (1) into the press and the execution of the extrusion.

L'invention concerne un procédé servant à chauffer un outil d'extrusion (1) pour l'extrusion de métal en un profilé, cet outil d'extrusion étant constitué d'un outil interne (5) qui peut être logé dans un outil annulaire (4) et qui présente les ouvertures de profilé creux voulues (6). Le procédé selon l'invention est caractérisé en ce qu'on chauffe l'outil d'extrusion entier (1), puis en ce qu'on abaisse uniquement la température de l'outil annulaire (4) avant d'introduire l'outil d'extrusion (1) dans la presse et d'effectuer l'extrusion.

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