A corrosion-resistant high-strength magnet material and its preparation method
By introducing high molecular polymers into neodymium iron boron magnets to form a dense structure and block corrosion channels, the problem of easy corrosion of neodymium iron boron magnets is solved, and their corrosion resistance and service life are improved.
CN120015455BActive Publication Date: 2026-05-26DONGGUAN DONGZHENG MAGNETIC IND CO LTD
Patent Information
- Application Number
- CN202510313816.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-17
- Publication Date
- 2026-05-26
- Estimated Expiration
- 2045-03-17
Smart Images
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Abstract
This invention relates to the field of magnet technology, and in particular to a corrosion-resistant, high-strength magnet material and its preparation method. The corrosion-resistant, high-strength magnet material comprises a magnetic matrix and a polymer filling the pores of the magnetic matrix and coating its surface. The magnetic matrix comprises the following raw material components by mass percentage: 40%-50% neodymium iron boron powder, 5%-10% nano-copper, 3%-7% nano-zinc, 5%-8% nano-cobalt, 1%-5% nano-zirconium, 5%-8% nano-zinc oxide, 6%-10% nano-silicon dioxide, with the balance being nano-iron. The magnet material of this invention exhibits excellent magnetic properties and corrosion resistance.
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Citation Information
Patent Citations
High-performance neodymium iron boron magnetic material
CN111192734A
Corrosion-resistant neodymium-iron-boron magnet and preparation method thereof
CN119446768A
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JP2004103871A