High-frequency wide-temperature low-loss manganese-zinc ferrite and manufacturing technique thereof
A manganese-zinc ferrite and low-loss technology, which is applied in the field of high-frequency, wide-temperature, low-loss manganese-zinc ferrite and its manufacturing process, can solve the problem of high power loss and achieve the effects of excellent performance, low loss, and energy saving
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Embodiment 1
[0024] Proceed as follows:
[0025] (1) Fe 2 o 3 (52mol%), Mn 3 o 4 (42mol%), ZnO (6mol%) main component and trace component TiO 2 (1000ppm) was added to the sand mill for the first wet grinding and mixing for 30 minutes;
[0026] (2) Step (1) Grind the obtained material through a spray dryer to make granules, and then send it to the rotary kiln for pre-burning at a temperature of 850°C, and pass through the rotary kiln once, and the passing time is generally controlled at 2 to 6 minutes;
[0027] (3) Adding Nb to the material obtained by pre-burning in step (2) 2 o 5 (350ppm) and ZrO 2 (250ppm), carry out the second wet grinding and mixing in a sand mill, and grind to an average particle size of 0.8 to 1.0 microns;
[0028] (4) Add polyvinyl alcohol solution with a concentration of 8wt% to the material obtained by grinding in step (3) according to 10wt% of the absolute dry material, stir for 2 hours, pass through a spray dryer, spray granulate, and the particle s...
Embodiment 2
[0032] Under the same situation as that of Example 1, the raw materials used and the consumption amount are changed to: in step 1), the main component is Fe 2 o 3 (53mol%), Mn 3 o 4 (42mol%), ZnO (5mol%) composition, trace composition Ni 2 o 3 (2000ppm), incorporated V in step 3) 2 o 5 (450ppm) and Ta 2 o 5 (360ppm).
Embodiment 3
[0034] Under the same situation as that of Example 1, the raw materials used and the consumption amount are changed to: in step 1), the main component is Fe 2 o 3 (53mol%), Mn 3 o 4 (42mol%), ZnO (5mol%) composition, trace component Co 3 o 4 (4500ppm), incorporated V in step 3) 2 o 5 (580ppm) and Nb 2 o 5 (300ppm).
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