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Idiomas disponibles
11. Inductors
NOTE!
The inductors are always labelled with a maximum operating
temperature and maximum power. Do not use the inductors
beyond this maximum temperature and/or maximum power. This
will prevent injury to persons and damage to equipment.
11.1 Inductor models
The scope of supply of a Schaeffler medium-frequency generator
may comprise:
Fixed inductor
This type is generally used for workpieces of the same design
that are frequently encountered and have to be heated. It is also
frequently used for relatively small workpieces where a flexible
inductor cannot be employed. The versions can vary from an
inductor that heats the workpiece from inside a bore to a variant
that heats the workpiece from the outside. Fixed inductors are
tailor-made and designed in principle for 1 type of workpiece.
If the dimensions of several workpieces are very similar, it is
sometimes possible to use 1 inductor for several workpieces.
Fixed inductors are generally equipped with inductor recognition
and overheating protection.
Example of a fixed inductor that is placed around the workpiece.
Example of a fixed inductor that is inserted into the bore of
a workpiece.
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An application of a fixed inductor for removing bearing rings from
the wheel shaft of a railway wagon is described below.
The rings are quickly heated to approx. 120°C. Due to the
relatively low penetration of the medium-frequency induction
field, the rings are heated faster than the shaft and can be easily
pushed off the shaft.
The bearing rings can also be heated again for fitting using the
same inductor.
Flexible inductor
A flexible inductor is a special cable that can be wrapped around
a workpiece like a coil. This inductor type thus offers a great deal
of freedom in its field of application.
This type of inductor is available in various lengths with different
temperature and power classes.
The flexible inductor is wrapped around or inside a workpiece.
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