| 简介 |
Disclosed are an R-T-B-based permanent magnetic material, a raw material composition, a preparation method therefor and a use thereof. The raw material composition of the R-T-B-based permanent magnetic material contains the following components : R : 29.5-32%, R being a rare earth element containing at least Nd, and the content of Pr being 0-17%; Zr : 0.15- 0.50%; Ga : 0-1%, but not 0, and when the content of Ga is 0.21-0.46%, the content of Zr is 0.34-0.5%; Co : 0-0.3%; M : 0-3%, M being one or more of Al, Cu, Ti, Nb, Hf, Si, Sn, Ge, Ag, Au, Bi and Mn; B : 0.95-1.05%; and Fe : 64-70%. The percentage is the mass percentage of each component in the total mass of the raw material composition of the R-T-B-based permanent magnetic material, and the sum of the content of each component is 100%. The R-T-B-based permanent magnetic material of the present invention has the advantages of having a good squareness, a good high-temperature property and excellent mechanical properties. |
客服热线：
手机版
二维码
