A kind of high-performance strontium permanent magnet ferrite and its preparation process
A ferrite and high-performance technology, applied in the field of high-performance strontium permanent ferrite and its preparation process, can solve the problem that the magnetic properties of strontium permanent ferrite cannot meet the requirements of high-end customers for magnets, and achieve enhanced magnetic properties. , the effect of enhancing magnetic properties and reducing influence
Active Publication Date: 2022-08-09
ANHUI SINOMAG TECH
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Problems solved by technology
[0004] However, with the advancement of science and technology, the development of small, light and thin electronic equipment, the requirements for the performance, volume and weight of permanent ferrite devices are getting higher and higher. The magnetic properties of ferrite can no longer meet the requirements of high-end customers for magnets
Method used
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preparation example 1
[0074] An enhancer consisting of sorbitol, La 2 O 2 CO 3 and La(HO) 3 It is composed by weight ratio of 1:0.10:0.05.
preparation example 2
[0076] An enhancer consisting of sorbitol, La 2 O 2 CO 3 and La(HO) 3 It is composed by weight ratio of 1:0.15:0.10.
preparation example 3
[0078] An enhancer consisting of sorbitol, La 2 O 2 CO 3 and La(HO) 3 It is composed by weight ratio of 1:0.20:0.125.
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Abstract
The present application relates to the technical field of magnetic material processing, and in particular, to a high-performance strontium permanent magnet ferrite and a preparation process thereof. A high-performance strontium permanent magnet ferrite is composed of the following components by weight: SrO 1.7-2.2wt.%; SrCO 3 2.5‑3.5wt.%; Si 0.12‑0.17wt.%; Ca 2.1‑2.6wt.%; La 2 O 3 5.0‑6.0wt.%; Co 2 O 3 1.6‑2.1wt.%; Ba 0.05‑0.1wt.%; Reinforcing agent 0.5‑0.8wt.%; the balance is Fe 2 O 3 The preparation process includes S1, raw material mixing; S2, pre-sintering; S3, crushing; S4, forming; S5, sintering. The strontium ferrite prepared by the preparation process and the ratio of the present application has the advantage of high magnetic properties in combination with the use of a reinforcing agent.
Description
technical field [0001] The present application relates to the technical field of magnetic material processing, and more particularly, to a high-performance strontium permanent magnet ferrite and a preparation process thereof. Background technique [0002] Permanent magnet materials, also known as "hard magnetic materials", that is, materials that can maintain constant magnetic properties once magnetized, are widely used in various fields. Among them, strontium ferrite in ferrite permanent magnet materials is an example. It has a structure Simple, low cost, high temperature resistance, superior performance of high remanence and magnetic energy product. And with the advancement of science and technology, the development of small electronic equipment, its demand is also increasing, so how to improve the preparation process of permanent magnet ferrite has become one of the current priorities. [0003] The preparation process of strontium ferrite in the related art includes a dr...
Claims
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IPC IPC(8): C04B35/40H01F1/10H01F41/02C04B35/622C04B35/64
CPCC04B35/2641C04B35/2633H01F1/10H01F41/0253C04B35/622C04B35/64C04B2235/3213C04B2235/442C04B2235/428C04B2235/401C04B2235/3227C04B2235/3275C04B2235/6567C04B2235/661C04B2235/96
Inventor 李忠雷
Owner ANHUI SINOMAG TECH