A kind of neodymium iron boron material and its preparation method and application
A permanent magnet material, R-T-B technology, applied in the direction of magnetic materials, inductors/transformers/magnet manufacturing, magnetic objects, etc., can solve the problems of magnet performance degradation and poor consistency, and achieve low magnetic permeability, good temperature stability, and high performance excellent effect
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0081] The raw materials used for preparing the R-T-B series permanent magnet material in the present embodiment are as shown in Table 1, and the process of its preparation is as follows:
[0082] (1) Melting: according to the formula shown in Table 1, take the prepared raw materials and put them into an alumina crucible, and carry out the melting process at a temperature of 1500°C in a high-frequency vacuum induction melting furnace under the condition that the vacuum degree is less than 0.02Pa. Vacuum melting.
[0083] (2) Casting: Ar gas is introduced into the smelting furnace after vacuum smelting to make the air pressure reach 55,000 Pa, and then casting is carried out, and the melt is passed through a copper roller with a speed of 29 rpm to obtain a quick-setting with a thickness of 0.12-0.35mm For alloy sheets, during the casting process, the copper roller needs to be fed with chilled water, and the temperature of the water inlet is ≤25°C; at 10 2 ℃ / sec-10 4 °C / sec co...
Embodiment 2~26、 comparative example 1~11
[0101] Raw materials were prepared according to the formula shown in Table 1. Except for the conditions shown in Table 2, other process conditions were the same as in Example 1 to obtain the R-T-B series permanent magnet material.
Embodiment 27~30
[0103] The raw materials of Examples 27 to 30 are the same as those in Example 22, except for the conditions shown in Table 2, other process conditions are the same as those in Example 22, and R-T-B sintered magnets are obtained.
PUM
Property | Measurement | Unit |
---|---|---|
particle size | aaaaa | aaaaa |
particle size | aaaaa | aaaaa |
thickness | 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