Specifications

Position Decoding IP 240
7.4 An Example of Position Decoding: Heat Treatment
The induction coil of an induction furnace for heat treatment must move at different speeds over
different sections of the workpiece to compensate for cross-section variations and achieve the
same hardness over the whole length of the workpiece.
Zone 2 Zone 4 Zone 5 Zone 7 Zone 8Zone 1
Induction coil
From 0 to the
beginning of
track 1
Direction of movement of the furnace Workpiece
Track 1
Track 2
Track 3
Track 4
Track 5
Track 6
Track 7
Zone 3 Zone 6
Fig. 7-11. Assignment of the Zones of a Workpiece to Tracks
Track 8 is used to switch off the feed motor at the end of a run and for automatic return to
the home position.
7-30 EWA 4NEB 811 6120-02a