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A kind of wide temperature and high power mnzn ferrite material and preparation method thereof

A ferrite material, high-power technology, applied in the direction of inorganic material magnetism, inductance/transformer/magnet manufacturing, circuits, etc., to achieve broad market prospects, good economic and social benefits, and high Bs value at room temperature and high temperature

Active Publication Date: 2022-07-29
CHANGSHU HAOBO ELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem mainly solved by the present invention is to provide a kind of wide-temperature high-power MnZn ferrite material and its preparation method, which can solve the above-mentioned deficiencies existing in existing ferrite materials

Method used

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  • A kind of wide temperature and high power mnzn ferrite material and preparation method thereof
  • A kind of wide temperature and high power mnzn ferrite material and preparation method thereof

Examples

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Embodiment 1

[0020] The invention discloses a MnZn ferrite material with wide temperature and high power, comprising: a main component and an auxiliary additive component, wherein the main component includes 62.4mol% Fe 2 O 3 , 13.6mol% ZnO and 24.0mol% MnO; among them, Fe 2 O 3 Purity ≥99.5%, its specific surface area is greater than or equal to 4.05m 2 / g; MnO is Mn 3 O 4 As raw material, the molar percentage of Mn is ≥71.1%, and the specific surface area is 11-15m 2 / g; ZnO purity ≥99.7%.

[0021] The auxiliary additive components are based on the weight percentage of the main component, including: Co 2 O 3 0.2wt%, CaCO 3 0.08wt%, Nb 2 O 5 0.025wt%, TiO 2 0.01wt% and NiO 0.015wt%.

[0022] The preparation method of above-mentioned a kind of wide temperature and high power MnZn ferrite material, comprises the steps:

[0023] (1) Treatment of main components: Weigh Fe according to the formula 2 O 3 , ZnO and Mn 3 O 4 , and put it into a vibrating mill for grinding and...

Embodiment 2

[0031] The difference from Example 1 is that the main component includes 62.5mol% Fe 2 O 3 , 13.3 mol % of ZnO and 24.2 mol % of MnO; the auxiliary additive components are based on the weight percentage of the main component, including: Co 2 O 3 0.22wt%, CaCO 3 0.08wt%, Nb 2 O 5 0.025wt%, TiO 2 0.015wt%, NiO 0.015wt%. The wide-temperature and high-power MnZn ferrite material, namely the toroidal magnetic ring, is fired into the above-mentioned ferrite material whose properties are shown in Table 1.

[0032] Table 1 Material properties of the toroidal core of the present invention

[0033]

[0034] The material Bs in Table 1 is greatly improved than the conventional high-power material PC40, so that the material of the present invention can carry a larger working current and is not easy to be saturated in the actual working temperature range of 25-100 °C.

[0035] Adopt the formula of above-mentioned embodiment 1 and its preparation method to make the ring-shaped ma...

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Abstract

The invention discloses a wide-temperature and high-power MnZn ferrite material and a preparation method thereof, comprising: a main component and an auxiliary additive component, wherein the main component includes Fe with a molar percentage of 61-65 mol% 2 O 3 , 12.5-14.5mol% of ZnO, the rest is MnO, and the total amount is 100%; the auxiliary additive components are based on the weight percentage of the main component, including: Co 2 O 3 , CaCO 3 , Nb 2 O 5 , TiO 2 , NiO. The invention adopts a unique iron-rich formula design, and the prepared MnZn ferrite material with wide temperature and high power has high Bs value at room temperature and high temperature, and the initial magnetic permeability at ‑40°C to 120°C has a small variation range, which is in line with polar low temperature, high temperature and high temperature. Requirements for use in extreme temperature environments such as equatorial tropics, mountains, and plateaus.

Description

technical field [0001] The invention relates to the field of magnetic materials, in particular to a wide temperature and high power MnZn ferrite material and a preparation method thereof. Background technique [0002] The advancement of science and technology, electric vehicles, automatic warehouse handling equipment, solar power generation, CATV machine power supply, non-power failure power supply device UPS, communication equipment power supply and other high-power current transformers, as well as high-speed rail, air conditioners, fans, compressors, medical Reactor choke coils used in various electrical equipment such as equipment have higher and higher requirements for the anti-magnetic saturation capability of magnetic materials. At the same time, these electrical equipment are widely used in different temperature zones of the earth, and the equipment is required to work normally under the ambient temperature condition of -40℃~+120℃. The magnetic induction intensity of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/38C04B35/622C04B35/626C04B35/64H01F1/01H01F41/02
CPCC04B35/2633C04B35/265C04B35/622C04B35/62675C04B35/64H01F1/01H01F41/02C04B2235/3208C04B2235/3284C04B2235/3262C04B2235/3275C04B2235/3232C04B2235/3251C04B2235/3279C04B2235/6583C04B2235/6562C04B2235/6565C04B2235/6567
Inventor 程晗李平龙彬胡迪
Owner CHANGSHU HAOBO ELECTRONICS TECH CO LTD