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

Automatic production process for soft magnetic manganese zinc ferrite granules

A manganese-zinc ferrite and production process technology, which is applied in the field of automatic production process of soft magnetic manganese-zinc ferrite particles, can solve the problems of press and mold wear, easy delamination, large equipment loss, etc., and achieves service life. The effect of prolonging, improving efficiency and reducing production input

Active Publication Date: 2017-09-05
马鞍山新康达磁业有限公司
View PDF4 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the existing problems that in order to ensure the strength requirements of the magnetic core, the production molding pressure is too high, resulting in easy delamination of the subsequent molding and pressing, and the serious wear and tear of the press and the mold, and the large loss of equipment, the invention provides a soft magnetic manganese zinc ferrite The automatic production process of solid pellets improves the properties of soft magnetic manganese zinc ferrite pellets, reduces the molding pressure of magnetic core production, reduces the delamination of magnetic core pressing, improves the molding efficiency and the quality of magnetic core products, and reduces the pressure of presses and molds at the same time. Wear and tear, reduce the consumption of spare parts and spare parts, save production costs

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
  • Automatic production process for soft magnetic manganese zinc ferrite granules
  • Automatic production process for soft magnetic manganese zinc ferrite granules

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] figure 1 It is a flow chart of the automatic production process of the soft magnetic manganese zinc ferrite granular material of the present invention. The automatic production process of the soft magnetic manganese zinc ferrite granular material of the present embodiment is specifically carried out according to the following steps:

[0032] 1) Weighing of ingredients: Weigh the raw materials as follows: Fe 2 o 3 : 55mol%, ZnO: 15mol%; Mn 3 o 4 : 30mol%; where Fe 2 o 3 The purity of ZnO is 99.9%, the purity of ZnO is 99.9%, the Mn 3 o 4 The Mn content of the Mn is 72%; the present embodiment adopts the ferrous formula, that is, the Mn content is greater than 50% in the formula, which improves the initial magnetic permeability of the material;

[0033] 2) Primary pulping and sand milling: Add the raw materials into a sand mill, add dispersant A ammonium citrate ammonium citrate for wet grinding, the addition amount is 1% of the total amount of raw materials, and ...

Embodiment 2

[0039] The automatic production process of the soft magnetic manganese zinc ferrite granular material of the present embodiment is specifically carried out according to the following steps:

[0040] 1) Weighing of ingredients: Weigh the raw materials as follows: Fe 2 o 3 : 50mol%, ZnO: 25mol%; Mn 3 o 4 : 25mol%; where Fe 2 o 3 The purity of ZnO is 99.99%, the purity of ZnO is 99.95%, the Mn 3 o 4 The Mn content is 71%;

[0041] 2) Primary pulping and sand milling: Add raw materials into a sand mill, add dispersant A ammonium citrate for wet grinding, the addition amount is 3% of the total raw materials, and grind until the particle size is d50<1.0um;

[0042] 3) primary spray drying: spray drying to obtain powder;

[0043] 4) Pre-burning: Put the powder in step 3) into the rotary kiln for pre-burning at a uniform speed. The temperature of the rotary kiln is 800°C, and the holding time is 20min. 25+25)°C / h=31°C / h, cooling down to room temperature, among them, T 0 =800...

Embodiment 3

[0047] The automatic production process of the soft magnetic manganese zinc ferrite granular material of the present embodiment is specifically carried out according to the following steps:

[0048] 1) Weighing of ingredients: Weigh the raw materials as follows: Fe 2 o 3 : 55mol%, ZnO: 20mol%; Mn 3 o 4 : 25mol%; where Fe 2 o 3 The purity of ZnO is 99.95%, the purity of ZnO is 99.95%, the Mn 3 o 4 The Mn content is 72.4%;

[0049] 2) Primary pulping and sand milling: Add the raw materials into a sand mill, add dispersant A ammonium citrate for wet grinding, the addition amount is 2% of the total amount of raw materials, and grind until the particle size is d50<1.0um;

[0050] 3) primary spray drying: spray drying to obtain powder;

[0051] 4) Pre-burning: Put the powder in step 3) into the rotary kiln for pre-burning at a uniform speed. The temperature of the rotary kiln is 700°C, and the holding time is 30min. 20+25)°C / h=30°C / h, cooling down to room temperature, among...

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 an automatic production process for soft magnetic manganese zinc ferrite granules and belongs to the technical field of production of soft magnetic manganese zinc ferrite granules. The process comprises the following steps: batch weighing, primary pulping and grinding, primary spray-drying, pre-sintering, secondary pulping and grinding and secondary spray-drying, adding a plasticizer before secondary spray-drying, uniformly stirring and mixing, and performing spray-drying, wherein the plasticizer refers to a phthalic ester plasticizer. With the adoption of the phthalic ester plasticizer, on one hand, the plasticity of the powder is enhanced, plastic deformation (crushing) of powdered granules is easily caused, and the pressed density of a magnetic core is improved. Under the same strength condition of the magnetic core, the molding pressure of the granules can be reduced from 34-36Mpa to 31-33Mpa, the wear rate of a press is reduced by 0.1-0.5%, and the service life of the mold is prolonged by 0.1-0.5%; and the layering phenomenon in the magnetic core pressing process is reduced, and the production efficiency and product quality of the magnetic core are improved.

Description

technical field [0001] The invention belongs to the technical field of soft magnetic manganese zinc ferrite production, and more specifically relates to an automatic production process of soft magnetic manganese zinc ferrite granular material. Background technique [0002] MnZn ferrite is a soft magnetic material with a spinel structure. It is widely used in communication, sensing, Electronic industries such as TV sets, switching power supplies and magnetic heads. In recent years, with the development of electronic devices towards miniaturization and light weight, as well as the rapid development of communication and computer technology, higher and higher requirements have been put forward for the performance of ferrite materials, such as high-definition, digital color TV, flat panel The power supply circuit, switching power supply, notebook computer adapter and CCFL, LCD backlighting of the TV put forward higher requirements on the power loss, magnetic permeability and fre...

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): C04B35/26C04B35/626H01F1/37
Inventor 王利锋陈小林赵光
Owner 马鞍山新康达磁业有限公司
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