Method for manufacturing ferromagnetic core loaded with boric oxide
A production method, boron oxide technology, applied in the direction of inductance/transformer/magnet manufacturing, inorganic material magnetism, electrical components, etc., to achieve the effects of less cracking, high grain boundary resistivity, and stable electromagnetic properties
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[0013] Embodiment 1: the manufacture method of the ferromagnetic core of loading boron oxide, comprises the following steps:
[0014] (1) Pre-fired mixture: the molar amount of mixture A is Fe 3 o 4 75mol, 26mol of manganese oxide, 0.50mol of boron oxide, 0.22mol of zirconium fluoride, 0.14mol of nickel oxide, 0.35mol of borax, 0.52mol of iron oxide powder and 0.65mol of aluminum powder; Proportional components: 53ppm Tantalum, 165ppm Titanium, 350ppm Tungsten, 80ppm MoO 3 , 180ppm Nb 2 o 5 , 450ppm magnesium carbonate, 335ppm lanthanum oxide and 500ppm barium carbonate; Accurately weigh mixture A and mixture B respectively, use mixing tank to mix separately, stir and mix at 5000 rpm after 3.0 hours, and then send them into the rotary kiln Pre-burning, control the temperature at 420°C, and the pre-burning time is 2-3 hours to obtain the pre-fired mixture A and mixture B;
[0015] (2) Grinding: The mixtures A and B pre-fired in step (1) are sent to the grinding tank for g...
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