Method for preparing composite bonded permanent magnet
A technology for bonding permanent magnets and permanent magnet powders. It is applied in the fields of magnetic objects, inductors/transformers/magnets, and magnetic materials. , improve the overall cost-effective effect
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0020] The samarium-cobalt-based permanent magnet powder of the present embodiment has the following chemical formula: Sm 2 (Co 1-a-b-c Cu 0.18 Fe 0.15 Y 0.03 ) 8.5 , mix Co, Cu, Fe and Y according to the proportion of the chemical formula, place it in the heating crucible of the electric arc furnace, and evacuate to 10 -4 Pa or above, then introduce high-purity helium gas at 0.2 atmospheric pressure, and heat it with electricity. After all the materials in the crucible are melted, add Sm and metal calcium with a mass fraction of 0.1% of the total weight of the alloy raw materials into the crucible according to the above chemical formula ratio. , repeated smelting 3 times to obtain a uniform alloy liquid, and then poured into a water-cooled copper mold to obtain an alloy ingot. The above alloy ingot was first mechanically crushed into particles of 2-5mm in size, and then ball-milled to a particle size of 1-3μm powder.
[0021] The anisotropic NdFeB magnetic powder and th...
Embodiment 2
[0024] The samarium-cobalt-based permanent magnet powder of the present embodiment has the following chemical formula: Sm 2 (Co0. 57 Cu 0.2 Fe 0.18 Y 0.05 ) 8.5 , mix Co, Cu, Fe and Y according to the proportion of the chemical formula, place it in the heating crucible of the electric arc furnace, and evacuate to 10 -4 Pa or above, then introduce high-purity helium gas at 0.3 atmospheric pressure, and heat it with electricity. After all the materials in the crucible are melted, add Sm and metal calcium with a mass fraction of 0.3% of the total weight of the alloy raw materials into the crucible according to the above chemical formula ratio. , repeated smelting 5 times to obtain a uniform alloy liquid, and then poured into a water-cooled copper mold to obtain an alloy ingot. The above alloy ingot was first mechanically crushed into particles with a size of 2-5mm, and then ball-milled to a particle size of 1-3μm. powder.
[0025] Mix the anisotropic NdFeB magnetic powder a...
PUM
Property | Measurement | Unit |
---|---|---|
particle diameter | 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