An ultramicrocrystalline iron core strong magnetic annealing process and its special equipment
An annealing process and ultra-microcrystalline technology, applied in the manufacture of inductors/transformers/magnets, electrical components, circuits, etc., can solve the problems of complex process, increased excitation power, unsuitable use, etc., to achieve simple overall process and reduce magnetic flux Density, the effect of reducing production costs
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Embodiment 1
[0041] Common mode inductor core on frequency conversion air conditioner
[0042] Such as 32 / 20*10, weight 27g, technical requirements: 1kHz / 0.3V, L>60uH; 100KHz / 0.3V, L>6uH.
[0043] The comparison of the two heat treatment processes is as follows:
[0044]
Embodiment 2
[0046] Inverter welding machine transformer core
[0047] For the inverter welding machine transformer core, we hope that its primary no-load single-turn saturation voltage is as high as possible, so that the number of primary winding turns can be reduced. Taking 100 / 50*25 as an example, N1=6 turns. Comparison of two annealing processes:
[0048]
[0049]
[0050] It can be seen from the above that the annealing process under a strong magnetic field has its unique advantages, which makes the performance of the iron core and the design of components more optimized, and is more in line with the development direction of miniaturization, light weight and energy saving of electronic components.
[0051] In the present invention, a uniformly covered strong magnetic field is formed by a magnetically conductive frame and a permanent magnet, and the ultramicrocrystalline iron core is subjected to a strong magnetic field treatment after the temperature of the ultramicrocrystallin...
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