Method for preparing insulated iron powder used by soft magnetic composite materials
A soft magnetic composite material, iron powder technology, applied in the direction of inorganic material magnetism, etc., can solve the problems of easy brittleness of the insulating film, complicated preparation process, uneven coating, etc., and achieves high efficiency, simple process, good high temperature resistance. performance effect
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0020] Take a certain amount of hexafluorotitanic acid solution and add it to absolute ethanol to form a reaction solution, control the concentration of hexafluorotitanic acid to 0.005g / ml, heat the temperature of the reaction solution in a water bath to 30°C, and atomize the high-purity 99.5% Add iron powder (control its concentration to 0.2g / ml) into the reaction liquid and stir it mechanically for 30 minutes, wash with absolute ethanol three times after centrifugal filtration, and place it at 50°C to fully dry to obtain insulating iron powder. After the insulation treatment, the surface of the iron powder becomes smoother, the gloss is better, and the coating layer is uniform and complete. Comparing the magnetic properties of the core made of iron powder before and after the coating treatment, it is found that the maximum relative permeability of the insulated iron powder core changes from 328 to 291, and the magnetic loss at the magnetic induction 1T frequency 50Hz decrease...
Embodiment 2
[0022] The raw iron powder is mixed iron powder with a mass ratio of atomized iron powder and reduced iron powder of 1:1, and the purity is 99.3%. Take a certain amount of hexafluorozirconic acid solution and add it to anhydrous acetone to form a reaction solution, control the concentration of hexafluorozirconic acid to 0.05g / ml, heat the temperature of the reaction solution in a water bath to 60°C, and add the prepared mixed iron powder to the reaction solution In the process, the concentration of iron powder was controlled at 5g / ml, mechanically stirred for 60min, washed with anhydrous acetone for 3 times after centrifugal filtration, and fully dried at 120°C to obtain insulating iron powder. Comparing the magnetic properties of the core made of iron powder before and after coating treatment, it is found that the maximum relative permeability of the insulated iron powder core changes from 318 to 263, and the magnetic loss at the magnetic induction 1T frequency 400Hz drops fro...
Embodiment 3
[0024] The raw material iron powder is mixed iron powder with a mass ratio of atomized iron powder and carbonyl iron powder of 1:1, and the purity is 99.4%. Take a certain amount of hexafluorotitanic acid solution and add it to absolute ethanol to make a reaction solution, control the concentration of hexafluorotitanic acid to 0.02g / ml, heat the temperature of the reaction solution to 50°C in a water bath, and add the prepared mixed iron powder to the reaction solution In the process, the concentration of iron powder was controlled at 2 g / ml, mechanically stirred for 5 minutes, washed with absolute ethanol for 3 times after centrifugal filtration, and fully dried at 80°C to obtain insulating iron powder. Comparing the maximum relative magnetic permeability of the magnetic core made of iron powder before and after coating treatment from 302 to 225, the magnetic loss at the magnetic induction 1T frequency of 400Hz dropped from 196W / kg to 92W / kg.
PUM
Property | Measurement | Unit |
---|---|---|
magnetic loss | aaaaa | aaaaa |
magnetic loss | aaaaa | aaaaa |
magnetic loss | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
- 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, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com