Abstract: A sensor device for detecting rotation, having a position transmitter with a shaft element having first and second shaft ends. The rotation to be detected is introduced via the first shaft end. The shaft element contains a magnet element at the second shaft end, a sensor element for detecting the rotation of the magnet element, and a housing part with at least two sections are separated from each other. The shaft element of the position transmitter is mounted on the first section, and the sensor element is arranged in the second section. The housing part and the shaft element each have a first bearing portion shaped so as to taper towards the shaft end in the region of the second shaft end, the shaft element supported on the housing part on the first bearing portion in order to support the position transmitter on the housing part.

Abstract: A process and apparatus for extruding aluminum into products, wherein aluminum logs are first heated to a predetermined temperature in a furnace, then are cut into billets of predetermined lengths, and then the billets, while still hot, are extruded into predetermined products in an extruder. In the process, the logs are cut into billets with a cross cut circular saw immediately after the logs are heated and before the logs are permitted to cool to a temperature below a suitable extruding temperature. The circular saw is cooled and lubricated during the cutting to as to restrain the saw from sticking in the heated aluminum and so as to maintain the temperature of the log at the cut within a predetermined range wherein the aluminum is relatively easy to cut and waste is minimized.

Abstract: A process and apparatus for extruding aluminum into products, wherein aluminum logs are first heated to a predetermined temperature in a furnace, then are cut into billets of predetermined lengths, and then the billets, while still hot, are extruded into predetermined products in an extruder. In the process, the logs are cut into billets with a cross cut circular saw immediately after the logs are heated and before the logs are permitted to cool to a temperature below a suitable extruding temperature. The circular saw is cooled and lubricated during the cutting to as to restrain the saw from sticking in the heated aluminum and so as to maintain the temperature of the log at the cut within a predetermined range wherein the aluminum is relatively easy to cut and waste is minimized.