Since March 1, 2010 our headquarter is located in Essen.
From 26.-30. October 2010 ThyssenKrupp Magnettechnik is represented at the world's largest sheet metal working exhibition.
Please visit our stand E22 in exhibition hall 16!
Saturation
In
case of thin sheets the problem of magnetic saturation occurs
more strongly. This means that from a certain magnetic force
the spreading effect cannot be increased considerably any
more.
Below, the spreading effect is specified as the distance
of the two upper sheets a in comparison to different sheet
thicknesses T, related to the sheets with the
dimensions: 1000mm * 300mm * T mm ; T = thickness
electrical spreader, 3-pole 220 mm wide as seen above.
The specifications refer to a test arrangement - with the attractive forces compensated - according to the structure.
Spreading height as a function of the plate thickness
It
can be seen that considerable difference as to the spreading
height cannot be detected with a sheet being 0.5mm thick.
The differences are not considerable up to sheets being 1.0
mm thick, since it is only 1 mm with the coil current being
constant. In practice this should hardly be noticeable. In
case of sheets being 2 or 3 mm thick the differences become
noticeable. In case of a coil current of 2.5 A it can be
noticed that the spreading height increases when the thickness
of the sheet increases as well. This is a clear hint at the
magnetic saturation with the thinner sheets. When the coil
current is reduced to 1.25 A (to 50%), the dependence assumed
already before can be seen clearly. The weight increasing
with the thickness of the sheet causes a reduction of the
spreading height.
