燒結(jié)釹鐵硼磁鋼
燒結(jié)釹鐵硼磁鋼簡介
? ? 釹鐵硼磁鋼（Neodymium-Iron-Boron Magnet 或 NdFeB Magnet）主要是由金屬釹、鐵、硼（Nd2Fe14B）形成的四方晶系晶體，是一種能量密度很高的儲能器，可以高效地實現(xiàn)能量和信息的相互轉(zhuǎn)換而本身能量并不消耗，是目前最常用的稀土永磁材料。
? ? 燒結(jié)釹鐵硼磁鋼的生產(chǎn)主要經(jīng)過配料、熔煉、制粉、成型、燒結(jié)、性能檢測、機(jī)械加工、表面處理、檢驗包裝等工序環(huán)節(jié)。
燒結(jié)釹鐵硼生產(chǎn)流程
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釹鐵硼磁鋼性能
根據(jù)釹鐵硼磁鋼自身磁能積大小和耐溫等級劃分出不同牌號，目前產(chǎn)品已涵蓋N35-N56，N35M-N54M，N35H-N54H，N33SH-50SH，N30UH-N50UH，N30EH-N48EH，N28AH-N40AH全系列牌號。
| 牌號 | 剩磁(Br) | 內(nèi)稟矯頑力(Hcj) | 矯頑力(Hcb) | 最大磁能積(BH)max | 密度 | 最高工作溫度 | ||||
|---|---|---|---|---|---|---|---|---|---|---|
| T | kGs | kA/m | kOe | kA/m | kOe | kJ/m3 | MGOe | g/cm3 | ℃ | |
| N56 | 1.47-1.51 | 14.7-15.1 | >876 | >11 | >836 | >10.5 | 414-454 | 52-57 | 7.5 | 80 |
| N54 | 1.45-1.49 | 14.5-14.9 | >955 | >12 | >836 | >10.5 | 406-437 | 51-55 | 7.5 | 80 |
| N52 | 1.42-1.46 | 14.2-14.6 | >955 | >12 | >836 | >10.5 | 390-422 | 49-53 | 7.5 | 80 |
| N50 | 1.39-1.44 | 13.9-14.4 | >955 | >12 | >860 | >10.8 | 374-406 | 47-51 | 7.5 | 80 |
| N48 | 1.37-1.43 | 13.7-14.3 | >955 | >12 | >860 | >10.8 | 358-390 | 45-49 | 7.5 | 80 |
| N45 | 1.32-1.37 | 13.2-13.7 | >955 | >12 | >860 | >10.8 | 342-366 | 43-46 | 7.5 | 80 |
| N42 | 1.28-1.32 | 12.8-13.2 | >955 | >12 | >860 | >10.8 | 318-342 | 40-43 | 7.5 | 80 |
| N40 | 1.25-1.28 | 12.5-12.8 | >955 | >12 | >860 | >10.8 | 302-326 | 38-41 | 7.5 | 80 |
| N38 | 1.22-1.25 | 12.3-12.5 | >955 | >12 | >860 | >10.8 | 287-310 | 36-39 | 7.5 | 80 |
| N35 | 1.17-1.22 | 11.7-12.2 | >955 | >12 | >860 | >10.8 | 263-287 | 33-36 | 7.5 | 80 |
| 56M | 1.46-1.5 | 14.6-15 | >1035 | >13 | >995 | >12.5 | 406-446 | 51-56 | 7.5 | 100 |
| 54M | 1.44-1.49 | 14.4-14.9 | >1114 | >14 | >1035 | >13 | 398-438 | 50-55 | 7.5 | 100 |
| 52M | 1.42-1.46 | 14.2-14.6 | >1114 | >14 | >1035 | >13 | 382-422 | 49-53 | 7.5 | 100 |
| 50M | 1.39-1.44 | 13.9-14.4 | >1114 | >14 | >1035 | >13 | 374-406 | 47-51 | 7.5 | 100 |
| 48M | 1.37-1.42 | 13.7-14.2 | >1114 | >14 | >1027 | >12.9 | 358-390 | 45-49 | 7.5 | 100 |
| 45M | 1.32-1.37 | 13.2-13.7 | >1114 | >14 | >995 | >12.5 | 342-366 | 43-46 | 7.5 | 100 |
| 42M | 1.28-1.32 | 12.8-13.2 | >1114 | >14 | >955 | >12 | 318-342 | 40-43 | 7.5 | 100 |
| 40M | 1.25-1.28 | 12.5-12.8 | >1114 | >14 | >923 | >11.6 | 302-326 | 38-41 | 7.5 | 100 |
| 38M | 1.22-1.25 | 12.3-12.5 | >1114 | >14 | >899 | >11.3 | 287-310 | 36-39 | 7.5 | 100 |
| 35M | 1.17-1.22 | 11.7-12.2 | >1114 | >14 | >868 | >10.9 | 263-287 | 33-36 | 7.5 | 100 |
| 54H | 1.44-1.49 | 14.4-14.9 | >1353 | >17 | >1075 | >13.5 | 398-438 | 50-55 | 7.5 | 120 |
| 52H | 1.42-1.46 | 14.2-14.6 | >1353 | >17 | >1059 | >13.3 | 382-422 | 48-53 | 7.5 | 120 |
| 50H | 1.39-1.44 | 13.9-14.4 | >1353 | >17 | >1043 | >13.1 | 374-406 | 47-51 | 7.5 | 120 |
| 48H | 1.36-1.42 | 13.6-14.2 | >1353 | >17 | >1027 | >12.9 | 358-390 | 45-49 | 7.5 | 120 |
| 45H | 1.32-1.37 | 13.2-13.7 | >1353 | >17 | >995 | >12.5 | 342-366 | 43-46 | 7.5 | 120 |
| 42H | 1.28-1.32 | 12.8-13.2 | >1353 | >17 | >955 | >12 | 318-342 | 40-43 | 7.5 | 120 |
| 40H | 1.25-1.28 | 12.5-12.8 | >1353 | >17 | >923 | >11.6 | 302-326 | 38-41 | 7.5 | 120 |
| 38H | 1.22-1.25 | 12.3-12.5 | >1353 | >17 | >899 | >11.3 | 287-310 | 36-39 | 7.5 | 120 |
| 35H | 1.17-1.22 | 11.7-12.1 | >1353 | >17 | >868 | >10.9 | 263-287 | 33-36 | 7.5 | 120 |
| 52SH | 1.42-1.46 | 14.2-14.6 | >1592 | >20 | >1059 | >13.3 | 390-422 | 49-53 | 7.5 | 150 |
| 50SH | 1.39-1.42 | 13.9-14.2 | >1592 | >20 | >1043 | >13.1 | 374-406 | 47-51 | 7.5 | 150 |
| 48SH | 1.36-1.4 | 13.6-14 | >1592 | >20 | >1035 | >13 | 358-390 | 45-49 | 7.5 | 150 |
| 45SH | 1.32-1.37 | 13.2-13.7 | >1592 | >20 | >995 | >12.5 | 342-366 | 43-46 | 7.5 | 150 |
| 42SH | 1.28-1.32 | 12.8-13.2 | >1592 | >20 | >955 | >12 | 318-342 | 40-43 | 7.5 | 150 |
| 40SH | 1.25-1.28 | 12.5-12.8 | >1592 | >20 | >939 | >11.8 | 302-326 | 38-41 | 7.5 | 150 |
| 38SH | 1.22-1.25 | 12.2-12.5 | >1592 | >20 | >907 | >11.4 | 287-310 | 36-39 | 7.5 | 150 |
| 35SH | 1.17-1.22 | 11.7-12.2 | >1592 | >20 | >876 | >11 | 263-287 | 33-36 | 7.5 | 150 |
| 33SH | 1.13-1.17 | 11.3-11.7 | >1592 | >20 | >844 | >10.6 | 247-271 | 31-34 | 7.5 | 150 |
| 48UH | 1.36-1.4 | 13.6-14 | >1910 | >24 | >1031 | >12.9 | 358-390 | 45-49 | 7.55 | 180 |
| 45UH | 1.32-1.36 | 13.2-13.6 | >1990 | >25 | >1003 | >12.6 | 324-366 | 43-46 | 7.55 | 180 |
| 42UH | 1.28-1.32 | 12.8-13.2 | >1990 | >25 | >971 | >12.2 | 318-342 | 40-43 | 7.55 | 180 |
| 40UH | 1.25-1.28 | 12.5-12.8 | >1990 | >25 | >923 | >11.6 | 302-326 | 38-41 | 7.55 | 180 |
| 38UH | 1.22-1.25 | 12.2-12.5 | >1990 | >25 | >907 | >11.4 | 287-310 | 36-39 | 7.55 | 180 |
| 35UH | 1.17-1.22 | 11.7-12.2 | >1990 | >25 | >860 | >10.8 | 263-287 | 33-36 | 7.55 | 180 |
| 33UH | 1.13-1.17 | 11.3-11.7 | >1990 | >25 | >852 | >10.7 | 247-271 | 31-34 | 7.55 | 180 |
| 30UH | 1.08-1.13 | 10.8-11.3 | >1990 | >25 | >812 | >10.2 | 223-247 | 28-31 | 7.55 | 180 |
| 45EH | 1.32-1.36 | 13.2-13.6 | >2308 | >29 | >1003 | >12.6 | 342-366 | 43-46 | 7.6 | 200 |
| 42EH | 1.28-1.32 | 12.8-13.2 | >2388 | >30 | >970 | >12.2 | 318-342 | 40-43 | 7.6 | 200 |
| 40EH | 1.25-1.28 | 12.5-12.8 | >2388 | >30 | >947 | >11.9 | 302-326 | 38-41 | 7.6 | 200 |
| 38EH | 1.22-1.25 | 12.2-12.5 | >2388 | >30 | >915 | >11.5 | 287-310 | 36-39 | 7.6 | 200 |
| 35EH | 1.17-1.22 | 11.7-12.2 | >2388 | >30 | >884 | >11.1 | 263-287 | 33-36 | 7.6 | 200 |
| 33EH | 1.13-1.17 | 11.3-11.7 | >2388 | >30 | >860 | >10.8 | 247-271 | 31-34 | 7.6 | 200 |
| 30EH | 1.08-1.13 | 10.8-11.3 | >2388 | >30 | >820 | >10.3 | 223-247 | 28-31 | 7.6 | 200 |
| 40AH | 1.25-1.28 | 12.5-12.8 | >2706 | >34 | >947 | >11.9 | 302-326 | 38-41 | 7.6 | 230 |
| 38AH | 1.22-1.25 | 12.2-12.5 | >2786 | >35 | >915 | >11.5 | 287-310 | 36-39 | 7.6 | 230 |
| 35AH | 1.17-1.2 | 11.7-12 | >2786 | >35 | >883 | >11.1 | 263-287 | 33-36 | 7.6 | 230 |
| 33AH | 1.11-1.17 | 11.1-11.7 | >2786 | >35 | >844 | >10.6 | 239-271 | 31-34 | 7.6 | 230 |
| 30AH | 1.07-1.13 | 10.7-11.3 | >2786 | >35 | >812 | >10.2 | 215-247 | 27-31 | 7.6 | 230 |
| 28AH | 1.02-1.09 | 10.2-10.9 | >2786 | >35 | >772 | >9.7 | 199-231 | 25-29 | 7.6 | 230 |
| 35TH | 1.17-1.22 | 11.7-12.2 | >3102 | >39 | >867 | >10.9 | 263-287 | 33-36 | 7.6 | 250 |
| 33TH | 1.11-1.17 | 11.1-11.7 | >3182 | >40 | >851 | >10.7 | 239-271 | 31-34 | 7.6 | 250 |
| 30TH | 1.08-1.13 | 10.8-11.3 | >3182 | >40 | >820 | >10.3 | 223-247 | 28-31 | 7.6 | 250 |
| 注：溫度條件為20℃。 | ||||||||||
燒結(jié)釹鐵硼物理性能
| 燒結(jié)釹鐵硼物理性能 Physical Properties of Sintered NdFeB |
|
|---|---|
| Br可逆溫度系數(shù) Reversible Temp coeff. Of Br | -0.09~-0.11%/℃ |
| Hcj可逆溫度系數(shù) Reversible Temp coeff. Of Hcj | -0.45~-0.75%/℃ |
| 密度 Density | 7.4~7.7g/cm3 |
| 維氏硬度 Vickers Hardness | 500~600HV |
| 抗壓強(qiáng)度 Compressive Strength | 1000~1500MPa |
| 比熱 Specific Heat | 0.12Kcal(Kg.℃) |
| 楊氏模量 Young Modulus | 150~200GPa |
| 泊松比 Poisson’s Ratio | 0.24 |
| 居里溫度 Curie Temperature | 310~350℃ |
| 電阻率 Electrical Resistivity | 1.4~1.6μΩ·m |
| 抗拉強(qiáng)度 Tensile Strength | 80~90MPa |
| 熱膨脹系數(shù) Coefficient of Thermal Expansion | (1-4)×10-6℃ |
| 熱傳導(dǎo)率 Pyroconductivity | 8~10W/(m.K) |
| 剛度 Stiffness | 0.64N/m2 |
| 壓縮率 Compression Ratio | 9.8*10-12m2/N |
| 相對磁導(dǎo)率 Relative Permeability | 1.02~1.06 |
| 注：參考標(biāo)準(zhǔn)GB/T 13560-2017 | |
