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Position Decoding
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.
Induction coil
Zone 1
From 0 to the
beginning of
track 1
Track 1
Track 2
Track 3
Track 4
Track 5
Track 6
Track 7
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
Direction of movement of the furnace
Zone 2
Zone 3
Zone 4
Zone 5
Zone 6
Zone 7 Zone 8
EWA 4NEB 811 6120-02a
IP 240
Workpiece
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