Manganese-zinc ferrite material of high performance and power, and manufacturing method therefor
A technology of manganese zinc ferrite and its manufacturing method, which is applied in the direction of the magnetism of inorganic materials, and achieves the effect of good innovation and low production cost
Active Publication Date: 2011-05-04
TDG HLDG CO LTD
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Problems solved by technology
The material has high saturation flux density (Bs), low power loss (Pcv) and high Curie temperature (Tc) at the same time at low temperature and high temperature; this method solves the problem of high saturation flux density of current soft magnetic power ferrite materials. The technical problem that the three properties of density, high Curie temperature and low power consumption cannot be realized consistently in one material is an innovative method different from traditional manufacturing processes
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[0028] A certain specific method for manufacturing high-performance power manganese-zinc ferrite soft magnetic material and magnetic core in the present invention goes through the following technological processes successively:
[0029] (1) Main ingredient ingredients;
[0030] (2) Primary crushing: put the raw materials prepared according to the composition into the sand grinding tank for wet sand grinding for 30 minutes, so that the three raw materials are fully mixed evenly, and a certain proportion of dispersant is added before and after sand grinding;
[0031] (3) Pre-sintering: drying and pre-sintering the sanded powder, the pre-sintering temperature is 800°C, and the temperature is kept for 2 to 3 hours;
[0032] (4) Add additives: add a lot of Mn 3 O 4 (1~20wt%, the best addition range is 13~18wt%) and 0.05~0.08wt% CaCO3 , 0.03~0.06wt% V 2 O 5 , 0.03~0.07wt% Nb 2 O 5 , 0.05~0.15wt% SnO 2 , the total addition amount is between 1.15 and 20.25wt%.
[0033] (5) Sec...
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Abstract
The invention discloses a manganese-zinc ferrite material and a manufacturing method thereof. The material synchronously has high saturation flux density (Bs), lower power consumption (Pcv) and high Curie temperature (Tc) under the state of lower temperature and high temperature; the method solves the technical problem that three performances, namely the high saturation flux density, the high Curie temperature and the lower power consumption of the prior soft magnetic power ferrite material fail to be consistently realized in one material. The main compositions adopted by the invention are Fe2O3, Mn3O4 and ZnO; the manufacturing process successively has stages such as material mixing of the main compositions, initial crushing, preburning, additive adding, secondary crushing, pelleting and so on; and the main innovation of the method is that: additive added in the four stage contains a large quantity of Mn3O4, the preferred amount of the Mn3O4 is between 1 and 20wt percent, and the best amount is between 13 and 18wt percent. The material is applied in electronic assemblies and whole machines, and can improve direct current bias ability of the electronic assemblies and reduce power consumption of the whole machines.
Description
technical field [0001] The invention relates to a manganese-zinc ferrite material and a manufacturing method thereof, in particular to a high-performance power manganese-zinc ferrite with high saturation magnetic flux density (Bs), low power loss (Pcv) and high Curie temperature (Tc). A material and a manufacturing method thereof. The material is applied to an electronic component and a whole machine, and can improve the DC bias capability of the electronic component and reduce the power loss of the whole machine, thereby achieving the purpose of energy saving and consumption reduction. Background technique [0002] The rapid development of the electronics industry has built a broad development platform for manganese-zinc ferrite soft magnetic materials and provided unprecedented development opportunities. In recent years, power manganese-zinc ferrite materials with high saturation flux density (Bs), high Curie temperature (Tc) and low power loss (Pcv) have developed rapidly...
Claims
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IPC IPC(8): H01F1/34C04B35/38C04B35/64
Inventor 樊志远祁关泉
Owner TDG HLDG CO LTD