Manganese-zinc ferrite material and preparation method thereof

A technology of manganese zinc ferrite and powder, which is applied in the field of manganese zinc ferrite material and its preparation, can solve the problems of large Curie temperature of 150°C and low temperature coefficient, and achieve high Curie temperature and low temperature The effect of the coefficient

Inactive Publication Date: 2009-10-21
HAINING LIANFENG MAGNET IND
View PDF0 Cites 34 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] At present, the manganese-zinc ferrite materials with relatively strong comprehensive properties reported at home and abroad, generally have a manganese-zinc ferrite material with an initial magnetic permeability of about 5000, and the magnetic permeability has a lower temperature in the range of 20 ° C to 70 ° C. Coefficient, after excee

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Manganese-zinc ferrite material and preparation method thereof
  • Manganese-zinc ferrite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Embodiment 1 Manganese zinc ferrite material is made up of main component and additive, and its main component (mol percentage) is: 52.5% Fe 2 o 3 Powder, 10% ZnO powder, 37.5% MnO powder; additives (accounting for the percentage of the total weight of main components) include 0.01% CaO powder, 0.1% TiO 2 Powder, 0.01% Co 2 o 3 Powder; additives also include 0.01% V 2 o 5 , 0.01% Bi 2 o 3 , 0.01% MoO 3 .

Embodiment 2

[0025] Embodiment 2 Manganese zinc ferrite material is made up of main component and additive, and its main component (mol percentage) is: 53.5% Fe 2 o 3 Powder, 15% ZnO powder, 31.5% MnO powder; additives (accounting for the percentage of the total weight of main components) include 0.05% CaO powder, 0.2% TiO 2 Powder, 0.15% Co 2 o 3 Powder; additives also include 0.05% V 2 o 5 , 0.05% Bi 2 o 3 .

Embodiment 3

[0026] Embodiment 3 Manganese zinc ferrite material is made up of main component and additive, and its main component (mol percentage) is: 55% Fe 2 o 3 Powder, 18% ZnO powder, 27% MnO powder; Additives (accounting for the percentage of main component total weight) include 0.2% CaO powder, 0.5% TiO 2 Powder, 0.5% Co 2 o 3 Powder; additives also include 0.2% V 2 o 5 .

[0027] The preparation method of manganese zinc ferrite material of the present invention comprises the following steps:

[0028] 1) Prepare the main component powder and mix the main component powder evenly;

[0029] 2), pre-burn the powder obtained in step 1) at 800-1150°C, and the holding time for pre-burning is 0.2-4 hours;

[0030] 3), adding additives to the powder obtained in step 2) according to the mass percentage and further pulverizing, then adding PVA solution and sanding it into slurry;

[0031] 4), the slurry obtained in step 3) is spray-dried, granulated, and pressed into a green sample.

...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
The average particle sizeaaaaaaaaaa
Curie temperatureaaaaaaaaaa
Curie temperatureaaaaaaaaaa
Login to view more

Abstract

The invention discloses manganese-zinc ferrite material. The material consists of main components and additives. The main components comprise the following raw materials according to the mol percentage: 52.5 to 55 of Fe2O3 powder, 10 to 18 of ZnO powder, and the balance of MnO powder. The additives comprise the following raw materials according to the weight percentage in the main components: 0.01 to 0.2 of CaO powder, 0.01 to 0.5 of TiO2 powder, and 0.01 to 0.5 of Co2O3 powder. The additives also comprise one or more of V2O5 powder, Bi2O3 powder and MoO3 powder. The invention also provides a preparation method for the manganese-zinc ferrite material. The manganese-zinc ferrite material has comprehensive performances of wide temperature range, low temperature coefficient and high Curie temperature; in the wide temperature range from 25 DEG C below zero to 150 DEG C, the magnetic conductivity of the material has lower temperature coefficient and the Curie temperature reaches as high as above 180 DEG C.

Description

technical field [0001] The invention relates to an electronic material, in particular to a manganese zinc ferrite material and a preparation method thereof. Background technique [0002] Manganese zinc ferrite is currently the largest and most widely used soft ferrite material. It is widely used in household appliances, computers, mobile phones, communications, office automation, displays, remote monitoring, audio-visual devices, electromagnetic compatibility, green lighting, In the electronic field such as environmental protection and energy saving, the application field of soft ferrite is still expanding, which is closely related to people's daily life. MnZn ferrite can generally be divided into two categories: high permeability ferrite and power ferrite. High permeability ferrite is used for signal transmission and conversion, mainly used in electronic circuit broadband transformers, pulse transformers in integrated services digital network (ISDN), local area network (LA...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C04B35/26C04B35/622
Inventor 李永劬严建强杨晓光徐建松施绩宪范祥法
Owner HAINING LIANFENG MAGNET IND
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap