Preparing method of high-performance manganese zinc ferrite material used by LCD
A high-performance manganese-zinc and ferrite material technology, applied in the field of ferrite cores, can solve the problems of high production cost, low performance, complex preparation, etc., and achieve the effect of optimizing performance and increasing the frequency of use
Inactive Publication Date: 2010-02-17
SHANDONG ZHONGRUI ELECTRONICS
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Problems solved by technology
[0004] The purpose of the present invention is to solve the technical problems of low performance, complex preparation and high production cost of existing products, and provide a method for preparing a high-performance manganese-zinc ferrite material magnetic core for liquid crystal displays, so as to overcome the deficiencies in the prior art
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[0011] The preparation method of the high-performance manganese-zinc ferrite material magnetic core for liquid crystal display of the present invention is carried out according to the following process steps:
[0012] 1) Material selection: Requirements for the purity of raw materials: the main purity of ferric oxide ≥ 99.2%, the main purity of manganese tetraoxide ≥ 98.5%, the main purity of zinc oxide ≥ 99.7%, the silicon dioxide in raw materials The content is less than 80ppm;
[0013] 2) Ingredients: It is composed of the following raw materials according to the weight ratio, 70% iron sesquioxide, 20% manganese tetraoxide, 10% zinc oxide, 1 nanometer calcium carbonate, and 1 nanometer vanadium pentoxide;
[0014] 3) Molding: Add polyvinyl alcohol adhesive with a weight ratio of 2% to the above raw materials, mix evenly, and press to form a ring magnetic core with a diameter of 10-35 mm;
[0015] 4) Sintering: sintering in a nitrogen atmosphere for 6 hours.
[0016] The h...
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Abstract
The invention discloses a preparing method of high-performance manganese zinc ferrite material used by LCD. Iron sesquioxide, manganous-manganic oxide and zinc oxide 10 are taken as raw materials, then nanometer calcium carbonate and nanometer vanadium pentoxide are added as auxiliary materials, and the manganese zinc ferrite material is prepared by shaping and sintering. The magnetic core prepared with the method of the invention can form a high-resistance layer in a crystal boundary around the crystal particles while ensuring that ferrite magnetic core crystal particles evenly grow, thus, the invention greatly improves the using frequency of the ferrite magnetic core, and meanwhile, the performance of the ferrite material is optimized and modified. The invention solves the technical problems of low performance, complex preparation and high production cost of the existing product, fills the gap that LCD in China has no special manganese zinc ferrite material magnetic cores.
Description
technical field [0001] The invention belongs to the technical field of ferrite cores, and relates to a method for preparing a high-performance manganese-zinc ferrite material core for liquid crystal displays. Background technique [0002] The development of electronic technology has brought infinite progress and convenience to people's production and life, and any electronic product is inseparable from audio-visual devices and display devices. Liquid crystal display is one of various display devices. Because of its small size and low power consumption, it was widely used in the display devices of handheld electronic products in the early days. Due to the advancement of technology, color LCDs and large-screen LCDs have been successfully developed. With their advantages of fast speed, large viewing angle, good chromaticity, no radiation, small size, and light weight, they are widely used in laptop computers, desktop computers, and flat-screen color TVs. , communications, mili...
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IPC IPC(8): H01F1/36H01F41/02C04B35/26B22F3/16
Inventor 高启龙谢真周兴建
Owner SHANDONG ZHONGRUI ELECTRONICS