Broad temperature low standby power consumption FPT type soft magnetic ferrite and preparation method thereof

A ferrite, low standby technology, applied in the field of low standby power consumption FPT type wide temperature soft ferrite material and its preparation, can solve the problem of limited use range, limited use range, no research on time stability reduction coefficient, etc. To achieve the effect of reducing the weight of the car body, improving the energy conversion efficiency, and improving the saturation magnetic flux density

Inactive Publication Date: 2010-01-06
NANJING FINEMAG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] Chinese patent application (CN1749209A) discloses a high saturation magnetic flux density, low-loss manganese-zinc ferrite material and its preparation method. Through doping and process control, it obtains 100kHz 200mT 45 ℃ less than 245kw/m 3 The power consumption and the saturation magnetic flux density of 1194A/m 50mT at 25°C are higher than 535mT, but the introduction of high

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  • Broad temperature low standby power consumption FPT type soft magnetic ferrite and preparation method thereof
  • Broad temperature low standby power consumption FPT type soft magnetic ferrite and preparation method thereof
  • Broad temperature low standby power consumption FPT type soft magnetic ferrite and preparation method thereof

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Embodiment 1

[0045] Selection of raw materials:

[0046] Commercially pure Fe 2 o 3 , ZnO, MnO, and chemically pure V 2 o 5 , Nb 2 o 5 、 Ta 2 o 5 , ZrO 2 、K 2 CO 3 , SnO 2 、TiO 2 、Co 2 o 3 Wait;

[0047] The component design of the low standby power consumption FPT type wide temperature soft ferrite material of Example 1 of the present invention:

[0048] The main component content of ferrite material is calculated as oxide: Fe 2 o 3 is 53.5mol%, ZnO is 7.5mol%, and the rest is MnO; the first addition is assisted by oxide calculation including: SiO 2 It is 100ppm (0.01wt%); CaO is 700ppm (0.07wt%); the second auxiliary component added includes: V 2 o 5 300ppm (0.03wt%), Nb 2 o 5 It is 150ppm (0.015wt%); the content of the third auxiliary component added is calculated as oxide: TiO 2 1000ppm (0.1wt%); Co 2 o 3 It is 2000ppm (0.2wt%).

[0049] The preparation method of the low standby power consumption FPT type wide temperature soft ferrite material of the present in...

Embodiment 2

[0067] Selection of raw materials:

[0068] Commercially pure Fe 2 o 3 , ZnO, MnO, and chemically pure V 2 o 5 , Nb 2 o 5 、 Ta 2 o 5 , ZrO 2 、K 2 CO 3 , SnO 2 、TiO 2 、Co 2 o 3 Wait;

[0069] The component design of the low standby power consumption FPT type wide temperature soft ferrite material of Example 2 of the present invention:

[0070] The main component content of ferrite material is calculated as oxide: Fe 2 o 3 It is 54mol%, ZnO is 8mol%, and the rest is MnO; the first addition is assisted by oxide calculation including: SiO 2 It is 50ppm (0.005wt%); CaO is 500ppm (0.05wt%); the second auxiliary component added includes: Ta 2 o 5 150ppm (0.015wt%), Nb 2 o 5 200ppm (0.02wt%), ZrO 2 It is 300ppm (0.03wt%); the content of the third auxiliary component added is calculated as oxide: TiO 2 500ppm (0.05wt%); Co 2 o 3 It is 5000ppm (0.5wt%).

[0071] The preparation method of the low standby power consumption FPT type wide temperature soft ferrite m...

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Abstract

The invention discloses a broad temperature low standby power consumption FPT type soft magnetic ferrite and a preparation method thereof. The composition calculated by content of oxides is as follows: 52-55mol% of Fe2O3, 7-10mol% of ZnO and the balance of MnO; a first auxiliary component comprises 0.01wt%-0.1wt% of CaO and 0.005wt%-0.02wt% of SiO2; a second auxiliary component comprises one or more of V2O5, Nb2O5, Ta2O5, ZrO2 and K2O, the content is 0-0.2wt% by calculation, and a third auxiliary component comprises 0.05-1wt% of TiO2 and 0.05-1wt% of Co2O3. Pre-burning under the protection of nitrogen, sintering, the control of cooling atmosphere and the densification process are carried out, thereby leading the power consumption PCV of a magnetic core at 100kHz and 200mT within the temperature of 25 DEG C-120 DEG C to be respectively less than 400kw/m<3> and 350kw/m<3>, and a time stability indicator thereof which is a disaccommodation factor Df is less than 2*10<-6>.

Description

technical field [0001] The invention relates to a low standby power consumption FPT type wide temperature soft ferrite material and a preparation method thereof, belonging to the technical field of ferrite magnetic materials. Background technique [0002] The main branch of high-tech magnetic materials - soft ferrite, is a rapidly developing basic functional material, which has been widely used in IT industry, automobile industry, aerospace field, transportation department, ship and national defense weapon equipment system, etc. It covers almost all sectors of the national economy and the people's livelihood. In order to make the above-mentioned equipment systems operate efficiently, stably and reliably, the change of the electromagnetic properties of materials with temperature must be effectively controlled to ensure nothing goes wrong. The outdoor facilities of modern communication equipment, such as repeaters, amplifiers, microwave relay stations, submarine cables, optic...

Claims

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Application Information

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IPC IPC(8): H01F1/34C04B35/26C04B35/622C04B35/64
Inventor 石炎刘九皋王修炜顾骏
Owner NANJING FINEMAG TECH
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