3B Scientific High Current Coil with Five Turns User Manual
Page 2
Elwe Didactic GmbH • Steinfelsstr. 6 • 08248 Klingenthal • Germany •
www.elwedidactic.com
3B Scientific GmbH • Rudorffweg 8 • 21031 Hamburg • Germany •
www.3bscientific.com
Subject to technical amendments.
4.1 Spot welding
•
Set up the high-current transformer as shown
in Fig. 1 and place it on a heat-resistant sur-
face.
•
Attach the contact pins so that they face one
another.
•
Switch on the web coil and hold a pair of sheet
metal strips between the contact pins.
To achieve a strong point weld, take two identical
overlapping sheet metal strips and align their cor-
ners. Apply gentle pressure and position the cor-
ners flush between the electrodes.
4.2 Experiment for melting a nail
•
Set up the high-current transformer as shown
in Fig. 2 and place it on a heat-resistant sur-
face.
•
Turn the clamping device and insert a nail
through the holes at the sides.
•
Press the handles together and clamp the nail
tight with the hand screws.
•
Switch on the mains coil.
Owing to the strong current, the nail starts glowing
and melts completely after a short while.
•
After conducting the experiment, allow the
remains of the nail to cool for at least five
minutes.
600
Fig. 1 Spot welding
600
Fig. 2 Experiment for melting a nail