Yoke Definition
The yoke usually refers to a soft magnetic material that does not produce a magnetic field (magnetic force line) itself, and only transmits the magnetic force line in the magnetic circuit. The yoke is generally made of soft iron, A3 steel and soft magnetic alloy with relatively high magnetic permeability. In some special Occasionally, the yoke is also made of ferrite materials.
Due to the existence of the yoke, we can transmit the magnetic field lines produced by the energized wire package (coil) and the permanent magnet to the place we need, which is a bit like a circuit.

The Role Of The Yoke
The furnace body of the steel shell intermediate frequency melting furnace has a built-in profiling yoke, and the shielding of the yoke can reduce magnetic flux leakage, prevent the furnace body from heating, and improve efficiency. At the same time, the magnetic yoke plays the role of supporting and fixing the induction coil, so that the furnace body can achieve high strength and low noise. The yoke is a crescent-shaped yoke made of cold-rolled silicon steel sheets and stainless steel splints. The joint surface of the iron core and the coil is an arc surface, and the compression part is a surface instead of a line in the past. This structure has a good compression effect. Good, less flux leakage. After the silicon steel sheets are stacked, they are tightened with special splints instead of special through-core screws. This structure can make full use of the magnetic conduction area of the silicon steel sheets and reduce the possibility of local heating of the intermediate frequency induction melting furnace.