Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A method of moving the valley point to improve the bs of mnzn power ferrite material

A ferrite material and power technology, applied in the direction of inductor/transformer/magnet manufacturing, electrical components, circuits, etc., can solve the problem of increased material loss, and achieve the effect of reducing loss, improving Bs, and the method is simple

Active Publication Date: 2022-01-18
HENGDIAN GRP DMEGC MAGNETICS CO LTD
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention is in order to overcome by controlling Fe in the master recipe at present 2 o 3 Moving the valley point with the ZnO content, reducing the ZnO content and improving the Bs technology of the MnZn power ferrite material will increase the loss of the material, etc. A method of moving the valley point to increase the Bs of the MnZn power ferrite material is proposed

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
  • A method of moving the valley point to improve the bs of mnzn power ferrite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Embodiment 1: a kind of method that moves valley point and improves MnZn power ferrite material Bs, comprises the following steps:

[0025] 1) 52.9mol% Fe 2 o 3 , 38.3mol% of MnO and 8.8mol% of ZnO are mixed, and the next sanding time is 1.5h at the material ball water ratio of 1:5:0.4;

[0026] 2) adding 10% of the total mass of the calcined material and glue with a mass fraction of 7.5%, spraying and granulating, and then pre-calcining at 900°C in a rotary kiln to obtain the calcined material;

[0027] 3) Add additives comprising the following components in the calcined material and account for the mass percentage of the calcined material: CaCO 3 0.03%, ZrO 2 0.04%, Co 2 o 3 0.44%, SnO 2 0.05%, followed by secondary sanding for 1.5h under the ratio of ball water to 1:5:0.4;

[0028]4) Add glue with a total mass of 10% of the secondary abrasive and a mass fraction of 7.5% to the secondary abrasive, spray and granulate, press at 6Mpa to form a standard ring, and ...

Embodiment 2

[0029] Embodiment 2: a kind of method that moves valley point and improves MnZn power ferrite material Bs, comprises the following steps:

[0030] 1) 53.3mol% Fe 2 o 3 , 39.08mol% of MnO and 7.62mol% of ZnO are mixed, and the water ratio of the material ball is 1:7:0.6 for the next sanding for 0.5h;

[0031] 2) adding 10% of the total mass of the calcined material and glue with a mass fraction of 7.5%, spraying and granulating, and then pre-calcining at 1000°C in a rotary kiln to obtain the calcined material;

[0032] 3) Add additives comprising the following components in the calcined material and account for the mass percentage of the calcined material: CaCO 3 0.03%, ZrO 2 0.04%, Co 2 o 3 0.48%, SnO 2 0.05%, followed by secondary sanding for 0.5h at the ratio of ball water to 1:7:0.6;

[0033] 4) Add glue with a total mass of 10% of the secondary abrasive and a mass fraction of 7.5% to the secondary abrasive, spray and granulate, press at 8Mpa to form a standard ring,...

Embodiment 3

[0034] Embodiment 3: a kind of method that moves valley point and improves MnZn power ferrite material Bs, comprises the following steps:

[0035] 1) 53.1mol% Fe 2 o 3 , 38.5 mol% of MnO and 8.4 mol% of ZnO are mixed, and the next sanding time is 1h at the material ball water ratio of 1:6:0.5;

[0036] 2) adding 10% of the total mass of the calcined material and glue with a mass fraction of 7.5%, spraying and granulating, and then pre-calcining at 950°C in a rotary kiln to obtain the calcined material;

[0037] 3) Add additives comprising the following components in the calcined material and account for the mass percentage of the calcined material: CaCO 3 0.03%, ZrO 2 0.04%, Co 2 o 3 0.52%, SnO 2 0.05%, followed by secondary sanding for 1h at the ratio of ball water to 1:6:0.5;

[0038] 4) Add glue with a total mass of 10% of the secondary abrasive and a mass fraction of 7.5% to the secondary abrasive, spray and granulate, press at 7Mpa to form a standard ring, and then...

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

No PUM Login to View More

Abstract

The invention discloses a method for moving a valley point to increase Bs of a MnZn power ferrite material, and relates to the field of MnZn power ferrite material preparation, comprising the following steps: 1) mixing Fe2O3, MnO and ZnO, and performing a sand mill; 2. ) Add glue, spray granulation, and then pre-fire to obtain pre-fired material; 3) Add additives to pre-fired material, and perform secondary sand grinding; 4) Add glue to secondary sand abrasive, spray granulate , pressed into a standard ring and then sintered, the present invention controls the Fe 2 o 3 Content and Co 2 o 3 content to control and move the valley point, while reducing the loss, improve the Bs of the material, which solves the problem that the prior art cannot simultaneously move the valley point, reduce the loss and improve the Bs of the material, and the method of the present invention is relatively simple and suitable for industrialization .

Description

technical field [0001] The invention relates to the field of preparation of MnZn power ferrite materials, in particular to a method for moving a valley point to improve Bs of MnZn power ferrite materials. Background technique [0002] The existing MnZn power ferrite materials move the valley point, and it is generally considered that Fe in the main formula 2 o 3 The loss valley point with high content moves to the low temperature, Fe 2 o 3 The loss valley point with low content moves to high temperature, or by controlling Fe 2 o 3 And the ZnO content moves the valley point, reducing the ZnO content increases the Bs of the MnZn power ferrite material. Existing technology, relying on Fe 2 o 3 High and low content moving valley point will increase high temperature loss or reduce Bs, Fe 2 o 3 With high content, the valley point moves to low temperature, and the loss will increase at high temperature, especially after 100°C, reducing Fe 2 o 3 The content will reduce th...

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
Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/38C04B35/64H01F41/02
CPCC04B35/2658C04B35/64H01F41/02C04B2235/3208C04B2235/3293C04B2235/3244C04B2235/3275C04B35/265C04B2235/3284C04B2235/3262C04B35/6262C04B2235/96H01F41/0246H01F1/344C04B35/62695C04B2235/602C04B35/62685C04B35/634
Inventor 吕东华
Owner HENGDIAN GRP DMEGC MAGNETICS CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com