Alcan Technology & Management Ltd.

Christophe Bagnoud

Miroslaw Plata

Martin Bolliger

Jurgen Wust

Mirsolaw Plata

Gregoire Arnold

Klaus Wahrisch

Gr&eacute;goire Arnold

An extrusion device for manufacturing a profile from an extrusion block ( ), which is at least in part of metallic material, contains a container ( ) with container bore ( ) to accommodate an extrusion block ( ), a stem ( ), a shaping chamber and/or a shaping die ( ) and a heating facility ( ) arranged between the container bore ( ) and the die ( ). The heating facility ( ) contains a heating chamber ( ) in the form of a hollow metal tube featuring at least a first and a second heating section ( ) with heating chamber walls ( ) and means ( ) for inductively heating the heating chamber walls ( ). The first heating section ( ) exhibits a larger cross-sectional diameter than the&mdash;with respect to the direction of extrusion x&mdash;second heating section ( ), forming thereby a step-like narrowing in cross-section.

Device for manufacturing a metal profile

A method for process monitoring during die casting or vacuum thixoforming of metals in a mold, wherein the time lapse of temperature (T) is continuously measured on at least one point of the system and the temperature progression of the system is calculated in real time using a program. The time lapse of the heat flow (W) is calculated from the temperature progression of the system and the time lapse of the energy (U) of the system and the solidification heat portion (U ) of the metal solidified in the mold are calculated from the heat flow. At a given time, the calculated values are used as monitoring parameters.

Method for process monitoring during die casting or thixoforming of metals

A method for process monitoring during diecasting or thixotropic molding of metals in a diecasting or thixotropic molding installation which contains a casting chamber, a casting piston and a mould with a mold cavity. The method includes measuring temporal development of molding pressure p(t), determining time-related speed of the casting piston v(t); calculating energy E(t) supplied by the casting piston as a function of process time t, and calculating total energy E supplied by the casting piston during the diecasting or thixotropic molding process based on time-related development of the moulding pressure p(t) and the casting piston speed v(t), and using the total energy E as a parameter for monitoring the diecasting or thixotropic molding process.

Method for monitoring a process during metal die casting or thixotropic moulding

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Veyras, Switzerland

Christophe Bagnoud