Cylindrical composite permanent magnet and magnetic assembly containing cylindrical composite permanent magnet
A technology of permanent magnets and magnetic components, applied in the manufacture of permanent magnets, magnetic circuits characterized by magnetic materials, magnets, etc., to achieve the effect of broad material selection space and cost selection space, flexible material selection space and cost selection space
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0064] A permanent magnet product with an outer diameter of 12.5mm, an inner diameter of 6mm, and a height of 12.5mm is prepared by the following method:
[0065] (1) Only bonded NdFeB BNM-10 is used, and a non-splicing product (corresponding to MQ magnetic powder B powder) is obtained through one-time molding; the outer diameter surface is radially magnetized with 2 poles, installed on the shaft, and the measured surface magnetic field The intensity is 1950-2020GS, and the magnetic flux is 4.12-4.22mWb;
[0066] (2) Only bonded NdFeB BNM-12 is used to obtain non-splicing products through one-time molding (corresponding to MQ magnetic powder B+ powder); the outer diameter surface is radially magnetized with 8 poles, installed on the shaft, and the measured surface The magnetic field strength is 2100-2150GS, and the magnetic flux is 4.43-4.54mWb;
[0067] (3) Sintered NdFeB N35UH is used alone, and non-splicing products are obtained through one-time molding; the product is mag...
Embodiment 2
[0073] A permanent magnet product with an outer diameter of 25 mm, an inner diameter of 21 mm and a height of 60 mm was prepared.
[0074] Those skilled in the art know that it is very difficult to realize bonded NdFeB products with H=60mm alone. It can be obtained by the following methods:
[0075] (1) The permanent magnet spliced by two bonded NdFeB BNM-10 annular permanent magnets with H=30mm is magnetized with radial 8 poles on the outer diameter surface, mounted on the shaft, and the measured surface magnetic field strength is 1720- 1760GS, the magnetic flux is 2.12-2.14mWb.
[0076](2) The permanent magnet spliced by three bonded NdFeB BNM-10 annular permanent magnets with H=20 is magnetized with radial 8 poles on the outer diameter surface, mounted on the shaft, and the measured surface magnetic field strength is 1750- 1800GS, the magnetic flux is 2.15-2.17mWb.
[0077] (3) The permanent magnet spliced by two bonded NdFeB BNM-12 annular permanent magnets with H...
Embodiment 3
[0084] The outer diameter of the top surface and the bottom surface is 51.1mm, the inner diameter is 46.4mm, and the permanent magnet product with a height of 36.2mm is prepared by the following method:
[0085] (1) Two bonded NdFeB BNM-12 annular permanent magnets with H=18.1mm are spliced together to obtain a permanent magnet, which is magnetized with 36 poles on the inner diameter surface. The measured surface magnetic field strength is 3000-3200Gs, and the magnetic flux is 6.0-6.37 mWb.
[0086] (2) Two bonded NdFeB BNM-12 annular permanent magnets with H = 9mm and a H spliced by 9 pieces of sintered NdFeB N35SH tile-shaped magnets bonded to the magnet sleeve through the outer surface = 18.2mm annular magnets, after splicing to form a cylindrical composite permanent magnet, in which two H = 9mm bonded NdFeB annular permanent magnets are at both ends; 36 poles on the inner diameter surface are used for magnetization, and the inner surfaces of the magnets at both ends ar...
PUM
| Property | Measurement | Unit |
|---|---|---|
| thickness | aaaaa | aaaaa |
| height | aaaaa | aaaaa |
| magnetic field | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More