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A kind of preparation method of high-strength nickel-zinc soft magnetic core

A nickel-zinc soft magnetic and high-strength technology, applied in the direction of inductor/transformer/magnet manufacturing, magnetic objects, magnetic materials, etc., can solve the problems of low magnetic core strength, magnetic core cracking, dark cracked inductance, etc., and achieve magnetic core strength And the effect of improving production efficiency, reducing production cost, reducing energy consumption and damage rate

Active Publication Date: 2018-09-25
沅陵辰州磁电高科有限公司
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Problems solved by technology

[0005] In view of the above technical defects and barriers, the purpose of the present invention is to provide a method for preparing a high-strength nickel-zinc soft magnetic core, aiming at solving the problems of generally low magnetic core strength in the prior art, cracked magnetic cores and dark spots during the manufacturing process. Problems of cracked inductance and high energy consumption

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  • A kind of preparation method of high-strength nickel-zinc soft magnetic core

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Embodiment Construction

[0030] The present invention provides a method for preparing a high-strength nickel-zinc soft magnetic core. In order to make the purpose, technical solution and effect of the present invention clearer and clearer, the present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0031] see figure 1 , which is a flow chart of a preferred embodiment of the preparation method of the high-strength nickel-zinc soft magnetic core provided by the present invention. Such as figure 1 Shown, the preparation method of described high-strength nickel-zinc soft magnetic core comprises the following steps:

[0032] S1. Screening to obtain ferric oxide, zinc oxide, nickelous oxide, copper oxide, bismuth trioxide, niobium pentoxide, silicon dioxide, and titanium dioxide of specified ...

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Abstract

The invention discloses a preparation method of a high-strength nickel zinc soft-magnetic magnetic core. According to the invention, a proper amount of bismuth trioxide, titanium dioxide, niobium pentoxide and silicon dioxide-doped modification formula and a doped technology change approach technology are employed. The method is characterized in that niobium pentoxide and titanium dioxide are added in the formula, silica and bismuth trioxide are added in secondary ball milling, the industrial production is carried out according to the steps of mixing, ball milling, pre-burning, secondary ball milling, sand milling, spraying, moulding and sintering, a technology of pressure-type pelletizing, slurry blending and a proper amount of viscosity and proportion is employed, and the pre-burning temperature can be obtained by establishing a relation curve among ferric oxide purity, specific surface area and the pre-burning temperature, and the pre-burning temperature can be accurately controlled according to the characteristic of each batch of the product. The formula is optimized, the technical process is improved, the production flow is improved, the magnetic core intensity is effectively increased, the production efficiency is increased, the production energy consumption is greatly reduced, and the yield is greatly increased.

Description

[0001] A kind of preparation method of high-strength nickel-zinc soft magnetic core technical field [0002] The invention relates to the field of production of electronic components, in particular to a method for a high-strength nickel-zinc soft magnetic core. Background technique [0003] With the development of electronic technology, electronic components are gradually developing towards miniaturization, light weight, high frequency, high current, low EMI and low manufacturing cost, and high reliability. Many nickel-zinc soft magnetic core products require intelligent Robots or robotic hands to make inductors. Smart devices generally require high mechanical strength of the magnetic core. At present, the SMD magnetic cores produced in China have the defect of generally low strength, which seriously plagues the inductance manufacturing industry. The magnetic core cracks and cracked inductors enter the downstream machine board and cause accidents to the host. At the same t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/30C04B35/626C04B35/64H01F1/34H01F41/02
CPCC04B35/2658C04B35/2666C04B35/62615C04B35/6268C04B35/62695C04B35/64C04B2235/3251C04B2235/3281C04B2235/3298C04B2235/3418C04B2235/608C04B2235/77C04B2235/96H01F1/344H01F41/0246
Inventor 王弓
Owner 沅陵辰州磁电高科有限公司
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