Wide-temperature range low-loss Mn-Zn ferrite and its preparation method

A low-loss, ferrite technology, applied in the preparation of the ferrite, in the field of manganese-zinc ferrite with wide temperature and low loss, can solve the problems of high cost and large amount of cobalt oxide added, and achieve good formability. Effect
CN102424573AActive Publication Date: 2012-04-25NANTONG GUANYOUDA MAGNET
7 Cites 28 Cited by

Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
NANTONG GUANYOUDA MAGNET
Publication Date
2012-04-25

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
Patent Text Reader

Abstract

Belonging to the fields of Mn-Zn ferrites and their preparation technologies, the invention relates to a wide-temperature range low-loss Mn-Zn ferrite and its preparation method. The ferrite comprises main components and auxiliary components, wherein, the main components include iron oxide, manganese oxide and zinc oxide. The ferrite is characterized in that, the main components have the following mole percent content calculated in their respective reference substances: 50 mol%- -56 mol% of Fe2)3, 0.36 mol%-42 mol% of MnO, and 5 mol%-10 mol% of ZnO. The auxiliary components consist of a titanium oxide, a cobalt oxide, a bismuth oxide and an ultrafine silicon oxide. Relative to the total amount of the main components, the titanium oxide, the cobalt oxide, the bismuth oxide and the ultrafine silicon oxide have a total weight percent content of 0.06-0.98 wt% calculated in their reference substances TiO2, CO2O3, Bi2O3 and ultrafine SiO2. The Mn-Zn ferrite powder of the invention has good mouldability, and has a wide atmosphere adaptation scope in the sintering process, and the sintered product can reach the expected technological indexes.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention belongs to the technical field of MnZn series ferrite and its preparation, in particular relates to a manganese zinc series ferrite with wide temperature and low loss, and also relates to a preparation method of the ferrite. Background technique

[0002] With the development of household appliances, automotive electronics, energy-saving lamps, solar energy and communication facilities, etc. to the direction of miniaturization, lightness, integration and multi-function, soft ferrite magnetic materials have been more and more widely used in these devices Applications. Among them, manganese-zinc ferrite magnetic materials with high frequency, wide temperature, high DC superposition, high magnetic permeability, low loss, high Curie temperature and other properties are becoming more and more popular in power transformers, DC~DC, DC~AC, electrodeless lamps, etc. , solar energy, office automation, communications and other fields indispensable c...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More