Pre-treatment of a thixotropic metal bolt

B - Operations – Transporting – 22 – D

Patent

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Details

B22D 17/00 (2006.01) F27B 9/32 (2006.01) F27B 17/00 (2006.01) F27D 3/12 (2006.01) F27D 3/00 (2006.01)

Patent

CA 2395161

The invention relates to a pre-treatment device and method for production of a thixotropic metal bolt (10), in a casting chamber (30) of a thixo-moulding unit. The pre-treatment device comprises a container (14), for accommodating a metal bolt (10), an oven (20), for converting the metal bolt (10) in the container (14) into a partly fluid thixotropic state and a transport unit for transporting and feeding the thixotropic metal bolt (10), into the casting chamber (30). The container (14) is a cylinder-shape heating tube (14), with closable sides. Furthermore, the pre-treatment device is so arranged that, during the entire pre-treatment, namely the heating process in the oven (20), the transport into the casting chamber (30) and the period in the casting chamber (30), the metal bolt (10) remains in the heating tube (14).

L'invention concerne un dispositif et un procédé de prétraitement d'une billette thixotropique (10) dans une chambre de coulée (30) d'une unité de thixoformage. Cet dispositif de prétraitement comprend un contenant (14) servant à recevoir une billette (10), un four (20) servant à faire passer à l'état thixotropique, partiellement liquide, la billette (10) située dans le contenant (14), ainsi qu'un dispositif de transport servant à transporter et introduire la billette thixotropique (10) dans la chambre de coulée (30). Le contenant (14) se présente sous la forme d'un tube chauffant (14) cylindrique, pouvant être fermé sur le côté. Le dispositif de prétraitement est conçu de sorte que la billette (10) puisse rester dans le tube chauffant (14) pendant toute la durée du prétraitement, à savoir pendant le chauffage dans le four (20), le transport dans la chambre de coulée (30) et son séjour dans la chambre de coulée (14).

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