Preparation method of iron-nickel magnetic powder core with magnetic permeability mu = 200
A magnetic powder core and magnetic permeability technology, which is applied in the direction of magnetic materials, magnetic objects, and inorganic materials, can solve the problems of low magnetic permeability and high cost, and achieve improved bulk density, low cost, and increased magnetic core strength. Effect
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0030] A method for preparing an iron-nickel magnetic powder core with a permeability μ=200 includes the following steps:
[0031] (1) Primary insulation coating: Based on the total mass of the iron-nickel magnetic powder mother body, 0.01wt% calcium oxide is added to the iron-nickel magnetic powder for primary coating. The distribution of the elements in the iron-nickel magnetic powder is shown in Table 1. The particle size is -100 mesh, D50 is 10μm;
[0032] (2) Annealing: Put the iron-nickel magnetic powder after the primary insulation coating into the annealing furnace, and pass in nitrogen for protection, and anneal for 10h at 700℃;
[0033] (3) Secondary insulation coating: Add the annealed iron-nickel magnetic powder to the aqueous phosphoric acid solution and mix thoroughly. Based on the total mass of the iron-nickel magnetic powder precursor, the amount of phosphoric acid added is controlled at 0.001wt%; after heating to dryness, Add magnesium oxide and mix thoroughly, then...
Embodiment 2
[0038] A method for preparing an iron-nickel magnetic powder core with a permeability μ=200 includes the following steps:
[0039] (1) Primary insulation coating: Based on the total mass of the iron-nickel magnetic powder mother body, 1.0wt% of the mixture of kaolin and magnesium oxide (mass ratio 1:1) is added to the iron-nickel magnetic powder for primary coating, in which the iron-nickel magnetic powder The distribution of the elements in it is shown in Table 1. The particle size of the iron-nickel magnetic powder is -100 mesh, and the D50 is 70μm;
[0040] (2) Annealing: Put the iron-nickel magnetic powder after insulation coating into an annealing furnace, and pass nitrogen and hydrogen into it for protection. Anneal at 900℃ for 1 hour;
[0041] (3) Secondary insulation coating: Add the annealed iron-nickel magnetic powder to the acetone phosphoric acid solution and mix thoroughly. Based on the total mass of the iron-nickel magnetic powder precursor, the amount of phosphoric aci...
Embodiment 3
[0046] A method for preparing an iron-nickel magnetic powder core with a permeability μ=200 includes the following steps:
[0047] (1) Primary insulation coating: based on the total mass of the iron-nickel magnetic powder mother body, 0.5wt% of organic glue is added to the iron-nickel magnetic powder for primary coating. The distribution of the elements in the iron-nickel magnetic powder is shown in Table 1. The particle size is -100 mesh, D50 is 40μm;
[0048] (2) Annealing: Put the iron-nickel magnetic powder after the primary insulation coating into the annealing furnace, pass argon gas for protection, and anneal for 2h at 850℃;
[0049] (3) Secondary insulation coating: Add the annealed iron-nickel magnetic powder to the aqueous phosphoric acid solution and mix thoroughly. Based on the total mass of the iron-nickel magnetic powder precursor, the amount of phosphoric acid added is controlled at 0.05wt%; after heating to dryness, Then add the mixture of magnesium oxide, aluminum o...
PUM
![No PUM](https://static-eureka.patsnap.com/ssr/23.2.0/_nuxt/noPUMSmall.5c5f49c7.png)
Abstract
Description
Claims
Application Information
![application no application](https://static-eureka.patsnap.com/ssr/23.2.0/_nuxt/application.06fe782c.png)
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
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