1、釹鐵硼磁鐵介紹及性能表第三代稀土永磁釹鐵硼是當代磁鐵中性能最強的永磁鐵。它的BHmax值是鐵氧體磁鐵的5-12倍，是鋁鎳鈷磁鐵的3-10倍；它的矯頑力相當于鐵氧體磁鐵的5-10倍，鋁鎳鈷磁鐵的5-15倍，其潛在的磁性能極高，能吸起相當于自身重量640倍的重物。由于釹鐵硼磁鐵的主要原料鐵非常便宜，稀土釹的儲藏量較釤多10-16倍，故其價格也較釤鈷磁鐵低很多。釹鐵硼磁鐵的機械性能比釤鈷磁鐵和鋁鎳鈷磁鐵都好，更易于切割和鉆孔及復雜形狀加工。釹鐵硼磁鐵的不足之處是其溫度性能不佳，在高溫下使用磁損失較大，最高工作溫度較低。一般為80攝氏度左右，在經過特殊處理的磁鐵，其最高工作溫度可達200攝氏度。由于材

2、料中含有大量的釹和鐵，故容易銹蝕也是它的一大弱點。所以釹鐵硼磁鐵必須進行表面涂層處理?？呻婂冩?Ni), 鋅(Zn), 金(Au), 鉻(Cr), 環(huán)氧樹脂(Epoxy)等。釹鐵硼磁鐵目前廣泛應用于工業(yè)航空航天，電子，機電，儀器儀表，醫(yī)療等領域。而且非技術領域使用也越來越廣泛，如吸附磁鐵，玩具，首飾等。生產流程：配料-熔煉-制粉-成型-燒結-測試-機械加工-電鍍-磁化-檢驗-包裝釹鐵硼磁鐵磁性能 Magnetic Properties of NdFeB Magnets材料牌號剩磁Br矯頑力Hcb內稟矯頑力Hcj最大磁能積(BH)max工作溫度TWTKGsKA/mKOeKA/mKOeKJ/m3M

3、GOeCN351.17-1.2111.7-12.1876-89911.0-11.395512263-27933-3580N381.22-1.2612.2-12.6876-92311.0-11.695512287-30336-3880N401.26-1.2912.6-12.9876-92311.0-11.695512303-31838-4080N421.30-1.3313.0-13.3876-92611.0-11.695512318-33440-4280N451.33-1.3713.3-13.7876-92611.0-11.695512342-35843-4580N481.36-1.4213.6

4、-14.2876-92611.0-11.695512358-38245-4880N501.41-1.4514.1-14.5828-90710.4-11.487611382-39848-5070N521.44-1.4814.4-14.8828-90710.4-11.487611394-41449.5-5270N35M1.17-1.2111.7-12.1892-91511.2-11.5111414263-27933-35100N38M1.22-1.2612.2-12.6907-93111.4-11.7111414287-30336-38100N40M1.26-1.2912.6-12.9907-94

5、711.4-11.9111414303-31838-40100N42M1.30-1.3313.0-13.3907-94711.4-11.9111414318-33440-42100N45M1.33-1.3713.3-13.7907-95511.4-12.0111414334-35842-45100N48M1.36-1.4213.6-14.2907-95511.4-12.0111414358-38245-48100N50M1.41-1.4514.1-14.5907-97111.4-12.2111414382-39848-50100N33H1.14-1.1711.4-11.7820-87610.3

6、-11.0135317247-26331-33120N35H1.17-1.2111.7-12.1860-90710.8-11.4135317263-27933-35120N38H1.22-1.2612.2-12.6907-94711.4-11.9135317287-30336-38120N40H1.26-1.2912.6-12.9907-94711.4-11.9135317303-31838-40120N42H1.30-1.3313.0-13.3907-94711.4-11.9135317318-33440-42120N45H1.33-1.3713.3-13.7907-94711.4-11.9

7、135317342-35843-45120N48H1.36-1.4213.6-14.2907-97111.4-12.2127416358-38245-48110N30SH1.08-1.1210.8-11.2804-84410.1-10.6159220223-23928-30150N33SH1.14-1.1711.4-11.7820-87610.3-11.0159220247-26331-33150N35SH1.17-1.2111.7-12.1860-90710.8-11.4159220263-27933-35150N38SH1.22-1.2612.2-12.6907-94711.4-11.91

8、59220287-30336-38150N40SH1.26-1.2912.6-12.9907-94711.4-11.9159220303-31838-40150N42SH1.30-1.3313.0-13.3907-94711.4-11.9159220318-33440-42150N45SH1.33-1.3713.3-13.7907-94711.4-11.9151219342-35843-45140N28UH1.04-1.0810.4-10.8780-8129.8-10.2199025207-22326-28180N30UH1.08-1.1210.8-11.2804-84410.1-10.619

9、9025223-23928-30180N33UH1.14-1.1711.4-11.7820-87610.3-11.0199025247-26331-33180N35UH1.17-1.2111.7-12.1860-90710.8-11.4199025263-27933-35180N38UH1.22-1.2612.2-12.6907-94711.4-11.9199025287-30336-38180N40UH1.26-1.2912.6-12.9907-94711.4-11.9199025303-31838-40180N28EH1.04-1.0810.4-10.8780-8129.8-10.2238

10、830207-22326-28200N30EH1.08-1.1210.8-11.2804-84410.1-10.6238830223-23928-30200N33EH1.14-1.1711.4-11.7820-87610.3-11.0238830247-26331-33200N35EH1.17-1.2111.7-12.1860-90710.8-11.4238830263-27933-35200N38EH1.22-1.2612.2-12.6860-90710.8-11.4238830287-30336-38200N30AH1.08-1.1210.8-11.2804-84410.1-10.6278

11、635223-23928-30240注：工作溫度是指該溫度下的開路磁通不可逆損失小于或等于5%，測試溫度為20C2CNote: Working temperature is tested under 20C2C, the inevitable loss of magnetic force is no more than 5%.一般物理性能 Typical physical properties參數(shù) Parameter單位 Unit標稱值 Standard Data居里溫度(Tc) Curie TemperatureC310-380最高工作溫度(Tw) Maximum Operating Tem

12、peratureC80-200硬度 HardnessHv620電阻率(r) Electrical ResistivityW.cm1.8x10-4-2.0x10-4密度(D) Densityg/cm37.50-7.65回復磁導率(m rec) Recoil Permeability1.05磁化場強度(Hs) Magnetization Field StrengthKoe30KA/m2400抗彎強度 Bending StrengthMpa295-345剩磁溫度系數(shù)(aBr) Temp.Coefficient of Br%/C-0.11-0.12內稟矯頑力溫度系數(shù)(aHcj) Temp.Coeffi

13、cient of Hcj%/C-0.5-0.7尺寸范圍 Dimension Range方塊形 Block長度 Length寬度 Width厚度 Thickness最大 Maximum250.00mm180.00mm50.00mm最小 Minimum2.60mm1.80mm0.50mm圓環(huán)形 Ring外徑 Outer Dia內徑 Inner Dia厚度 Thickness最大 Maximum220.00mm80.00mm50.00mm最小 Minimum2.00mm1.50mm0.50mm圓餅形 Disc外徑 Outer Dia厚度 Thickness最大 Maximum220.00mm50.00mm最小 Mini