CN105845306A - 一种节能电机用钕铁硼永磁材料及其制备方法 - Google Patents

一种节能电机用钕铁硼永磁材料及其制备方法 Download PDF

Info

Publication number
CN105845306A
CN105845306A CN201610358221.5A CN201610358221A CN105845306A CN 105845306 A CN105845306 A CN 105845306A CN 201610358221 A CN201610358221 A CN 201610358221A CN 105845306 A CN105845306 A CN 105845306A
Authority
CN
China
Prior art keywords
magnet material
energy
permanent magnet
electric machine
saving electric
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201610358221.5A
Other languages
English (en)
Inventor
张大鹏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ningci Electronics Technology Co Ltd
Original Assignee
Ningci Electronics Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ningci Electronics Technology Co Ltd filed Critical Ningci Electronics Technology Co Ltd
Priority to CN201610358221.5A priority Critical patent/CN105845306A/zh
Publication of CN105845306A publication Critical patent/CN105845306A/zh
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/032—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials
    • H01F1/04—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials metals or alloys
    • H01F1/047—Alloys characterised by their composition
    • H01F1/053—Alloys characterised by their composition containing rare earth metals
    • H01F1/055—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5
    • H01F1/057—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B
    • H01F1/0571—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/032—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials
    • H01F1/04—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials metals or alloys
    • H01F1/047—Alloys characterised by their composition
    • H01F1/053—Alloys characterised by their composition containing rare earth metals
    • H01F1/055—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5
    • H01F1/057—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B
    • H01F1/0571—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes
    • H01F1/0575—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes pressed, sintered or bonded together
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/02—Details of the magnetic circuit characterised by the magnetic material

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Hard Magnetic Materials (AREA)

Abstract

本发明公开了一种节能电机用钕铁硼永磁材料，该种钕铁硼永磁材料分子式的通式为：R1xR2yFe100‑x‑y‑z‑u‑v‑wCozBuGavMw。经过破碎、制粉，加入添加剂、磁场取向压制成型、在保护气中进行烧结和回火制备而成。该种钕铁硼永磁材料原料组分较为合理，具有较高的矫顽力，抗氧化性能和机械性能良好，制得的永磁材料分子的各向异性场较高，居里温度达到了220℃，适用范围有了显著提高。

Description

一种节能电机用钕铁硼永磁材料及其制备方法
技术领域
本发明涉及磁性材料领域，具体而言，涉及一种节能电机用钕铁硼永磁材料及其制备方法。
背景技术
钕铁硼永磁材料是稀土永磁材料发展的最新成果，其具有优异的磁性特征而被称为“磁王”，被广泛应用于电子电器、电机、机械设备医疗保健等领域。然而，现有技术中，钕铁硼永磁材料由于其居里温度较低，在高温环境下无法得到应用，因此，需要改变原有材料配方，改善钕铁硼永磁材料性能。
发明内容
本发明目的在于解决上述问题，提供了一种节能电机用钕铁硼永磁材料及其制备方法。
为实现上述目的，本发明提供了一种节能电机用钕铁硼永磁材料，所述钕铁硼永磁材料具有下式所示的组成：R1xR2yFe100-x-y-z-u-v-wCozBuGavMw
其中，x、y、z、u、v、w为各元素的质量百分比，32.5%≤x+y≤33%，且28.5%≤x≤29%；2%≤z≤2.5%；0.94%≤u≤0.98%；0.1%≤v≤0.15%；1.18%≤w≤1.7%；R1为Pr和Nd；R2选自Ce、Dy、Gd、Tb、Ho中一种或几种；M选自Cu、Al、Zr、Nb中一种或几种。
所述节能电机用钕铁硼永磁材料的Pr与Nd的质量比为1:3。
该种节能电机用钕铁硼永磁材料的制备方法，包括以下步骤：将原料经过破碎、制粉，加入添加剂、磁场取向压制成型、在保护气中进行烧结和回火。
所述节能电机用钕铁硼永磁材料制备方法的破碎方法为氢爆法，所述氢爆法条件为：氢压1.0~1.5Mpa，吸氢1~6h，然后在500~700℃脱氢5~10h，脱氢后氧含量为500~800ppm。
所述节能电机用钕铁硼永磁材料制备方法的制粉方法为气流磨，得到的细粉平均粒度为2.5~5mm。
所述节能电机用钕铁硼永磁材料制备方法的添加剂为抗氧化剂和润滑剂。
所述节能电机用钕铁硼永磁材料制备方法的磁场取向压制成型条件为：磁场强度2.1~2.9T，压力10~18Mpa。
所述节能电机用钕铁硼永磁材料制备方法的烧结过程为将坯体包裹在平均粒度为10~30mm的石墨粉中，放入烧结炉中烧结，烧结温度1100~1200℃，烧结期间间歇性通入氩气，通入方法为通入1min，停止30s，周而复始，烧结时间2h；所述回火条件为在580~650℃回火3h。
本发明的有益效果：该种钕铁硼永磁材料原料组分较为合理，具有较高的矫顽力，抗氧化性能和机械性能良好，制得的永磁材料分子的各向异性场较高，居里温度达到了220℃，适用范围有了显著提高。
具体实施方式
本发明采取以下技术方案来实现：该种节能电机用钕铁硼永磁材料具有下式所示的组成：R1xR2yFe100-x-y-z-u-v-wCozBuGavMw
其中，x、y、z、u、v、w为各元素的质量百分比，32.5%≤x+y≤33%，且28.5%≤x≤29%；2%≤z≤2.5%；0.94%≤u≤0.98%；0.1%≤v≤0.15%；1.18%≤w≤1.7%；R1为Pr和Nd；R2选自Ce、Dy、Gd、Tb、Ho中一种或几种；M选自Cu、Al、Zr、Nb中一种或几种。
作为本发明的优选方案，x+y=33%、x=28.5%、z=2.2%、u=0.98%、v=0.11%、w=1.56%，R2为Ce、Dy、Gd、Tb、Ho，M为Cu、Al、Zr、Nb。
作为本发明的优选方案，节能电机用钕铁硼永磁材料的Pr与Nd的质量比为1:3。
该种节能电机用钕铁硼永磁材料的制备方法，包括以下步骤：将原料经过破碎、制粉，加入添加剂、磁场取向压制成型、在保护气中进行烧结和回火。
作为本发明的优选方案，节能电机用钕铁硼永磁材料制备方法的破碎方法为氢爆法，氢爆法条件为：氢压1Mpa，吸氢5h，然后在600℃脱氢8h，脱氢后氧含量为600ppm。
作为本发明的优选方案，节能电机用钕铁硼永磁材料制备方法的制粉方法为气流磨，得到的细粉平均粒度为2.5mm。
作为本发明的优选方案，节能电机用钕铁硼永磁材料制备方法的添加剂为抗氧化剂和润滑剂。
作为本发明的优选方案，节能电机用钕铁硼永磁材料制备方法的磁场取向压制成型条件为：磁场强度2.5T，压力15Mpa。
作为本发明的优选方案，节能电机用钕铁硼永磁材料制备方法的烧结过程为将坯体包裹在平均粒度为15mm的石墨粉中，放入烧结炉中烧结，烧结温度1200℃，烧结期间间歇性通入氩气，通入方法为通入1min，停止30s，周而复始，烧结时间2h；回火条件为在600℃回火3h。
该种钕铁硼永磁材料原料组分较为合理，具有较高的矫顽力，抗氧化性能和机械性能良好，制得的永磁材料分子的各向异性场较高，居里温度达到了220℃，适用范围有了显著提高。
以上详细描述了本发明的较佳具体实施例。应当理解，本领域的普通技术人员无需创造性劳动就可以根据本发明的构思作出诸多修改和变化。因此，凡本技术领域中技术人员依本发明的构思在现有技术的基础上通过逻辑分析、推理或者有限的实验可以得到的技术方案，皆应在由权利要求书所确定的保护范围内。

Claims (8)

1.一种节能电机用钕铁硼永磁材料，其特征在于，所述钕铁硼永磁材料具有下式所示的组成：R1xR2yFe100-x-y-z-u-v-wCozBuGavMw
其中，x、y、z、u、v、w为各元素的质量百分比，32.5%≤x+y≤33%，且28.5%≤x≤29%；2%≤z≤2.5%；0.94%≤u≤0.98%；0.1%≤v≤0.15%；1.18%≤w≤1.7%；R1为Pr和Nd；R2选自Ce、Dy、Gd、Tb、Ho中一种或几种；M选自Cu、Al、Zr、Nb中一种或几种。
2.根据权利要求1所述的节能电机用钕铁硼永磁材料，其特征在于：所述Pr与Nd的质量比为1:3。
3.一种节能电机用钕铁硼永磁材料的制备方法，其特征在于，包括以下步骤：将原料经过破碎、制粉，加入添加剂、磁场取向压制成型、在保护气中进行烧结和回火。
4.根据权利要求3所述的节能电机用钕铁硼永磁材料的制备方法，其特征在于，所述破碎方法为氢爆法，所述氢爆法条件为：氢压1.0~1.5Mpa，吸氢1~6h，然后在500~700℃脱氢5~10h，脱氢后氧含量为500~800ppm。
5.根据权利要求3所述的节能电机用钕铁硼永磁材料的制备方法，其特征在于，所述制粉方法为气流磨，得到的细粉平均粒度为2.5~5mm。
6.根据权利要求3所述的节能电机用钕铁硼永磁材料的制备方法，其特征在于，所述添加剂为抗氧化剂和润滑剂。
7.根据权利要求3所述的节能电机用钕铁硼永磁材料的制备方法，其特征在于，所述磁场取向压制成型条件为：磁场强度2.1~2.9T，压力10~18Mpa。
8.根据权利要求3所述的节能电机用钕铁硼永磁材料的制备方法，其特征在于，所述烧结过程为将坯体包裹在平均粒度为10~30mm的石墨粉中，放入烧结炉中烧结，烧结温度1100~1200℃，烧结期间间歇性通入氩气，通入方法为通入1min，停止30s，周而复始，烧结时间2h；所述回火条件为在580~650℃回火3h。
CN201610358221.5A 2016-05-26 2016-05-26 一种节能电机用钕铁硼永磁材料及其制备方法 Pending CN105845306A (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610358221.5A CN105845306A (zh) 2016-05-26 2016-05-26 一种节能电机用钕铁硼永磁材料及其制备方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610358221.5A CN105845306A (zh) 2016-05-26 2016-05-26 一种节能电机用钕铁硼永磁材料及其制备方法

Publications (1)

Publication Number Publication Date
CN105845306A true CN105845306A (zh) 2016-08-10

Family

ID=56594535

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610358221.5A Pending CN105845306A (zh) 2016-05-26 2016-05-26 一种节能电机用钕铁硼永磁材料及其制备方法

Country Status (1)

Country Link
CN (1) CN105845306A (zh)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105849828A (zh) * 2013-12-26 2016-08-10 丰田自动车株式会社 制造稀土磁体的方法
CN107424698A (zh) * 2017-08-04 2017-12-01 钢铁研究总院 一种剩磁梯度分布可控的钕铁硼永磁材料及其制备方法
US10347418B2 (en) 2013-12-19 2019-07-09 Toyota Jidosha Kabushiki Kaisha Method of manufacturing rare earth magnet
CN115116687A (zh) * 2022-07-21 2022-09-27 宁波松科磁材有限公司 一种制备烧结钕铁硼磁钢的方法
CN116721828A (zh) * 2023-08-08 2023-09-08 成都银河磁体股份有限公司 低成本稀土永磁合金及其制备方法、粘结磁体和器件

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0479202A (ja) * 1990-07-23 1992-03-12 Asahi Chem Ind Co Ltd 単磁区粒子よりなる永久磁石
CN102534358A (zh) * 2012-01-16 2012-07-04 烟台正海磁性材料股份有限公司 高矫顽力R-Fe-B系烧结永磁材料的制造方法
CN103077795A (zh) * 2013-01-11 2013-05-01 宁波合盛磁业有限公司 一种低失重n50型钕铁硼磁体
CN105304252A (zh) * 2015-11-18 2016-02-03 内蒙古包钢稀土磁性材料有限责任公司 一种无重稀土高性能钕铁硼永磁体及其制造方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0479202A (ja) * 1990-07-23 1992-03-12 Asahi Chem Ind Co Ltd 単磁区粒子よりなる永久磁石
CN102534358A (zh) * 2012-01-16 2012-07-04 烟台正海磁性材料股份有限公司 高矫顽力R-Fe-B系烧结永磁材料的制造方法
CN103077795A (zh) * 2013-01-11 2013-05-01 宁波合盛磁业有限公司 一种低失重n50型钕铁硼磁体
CN105304252A (zh) * 2015-11-18 2016-02-03 内蒙古包钢稀土磁性材料有限责任公司 一种无重稀土高性能钕铁硼永磁体及其制造方法

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10347418B2 (en) 2013-12-19 2019-07-09 Toyota Jidosha Kabushiki Kaisha Method of manufacturing rare earth magnet
CN105849828A (zh) * 2013-12-26 2016-08-10 丰田自动车株式会社 制造稀土磁体的方法
US10242795B2 (en) 2013-12-26 2019-03-26 Toyota Jidosha Kabushiki Kaisha Method of manufacturing rare earth magnet
CN107424698A (zh) * 2017-08-04 2017-12-01 钢铁研究总院 一种剩磁梯度分布可控的钕铁硼永磁材料及其制备方法
CN115116687A (zh) * 2022-07-21 2022-09-27 宁波松科磁材有限公司 一种制备烧结钕铁硼磁钢的方法
CN116721828A (zh) * 2023-08-08 2023-09-08 成都银河磁体股份有限公司 低成本稀土永磁合金及其制备方法、粘结磁体和器件

Similar Documents

Publication Publication Date Title
CN101266855B (zh) 稀土永磁材料及其制造方法
CN108922710B (zh) 一种高韧性、高矫顽力含Ce烧结稀土永磁体及其制备方法
JP6440880B2 (ja) 低ｂの希土類磁石
JP6366666B2 (ja) 重希土類元素を含まない焼結Ｎｄ−Ｆｅ−Ｂ磁性体の製造方法
CN105845306A (zh) 一种节能电机用钕铁硼永磁材料及其制备方法
CN102956336B (zh) 一种制备复合添加钆、钬和钇的烧结钕铁硼永磁材料的方法
CN103824668A (zh) 一种低重稀土高矫顽力烧结钕铁硼磁体及其制备方法
CN104966607B (zh) 一种烧结钕铁硼永磁体的制备方法
CN104841927A (zh) 高耐蚀性、高耐候性稀土永磁材料的制备方法
CN111145973B (zh) 一种含有晶界相的钐钴永磁体及其制备方法
CN101982855A (zh) 一种烧结钕铁硼永磁材料及其制备方法
CN108281246B (zh) 一种高性能烧结钕铁硼磁体及其制备方法
CN103956244A (zh) 一种高矫顽力烧结钕铁硼的制备方法
TW202127474A (zh) 釹鐵硼永磁材料、製備方法、應用
CN105702403A (zh) 一种烧结钕铁硼磁体及制备方法
CN106409458B (zh) 一种电机复合永磁材料及其制备方法
CN102360909A (zh) 一种钕铁硼磁体的制备方法
CN103137314A (zh) 一种制备稀土-铁-硼永磁体的方法
CN108806912A (zh) 一种无重稀土烧结钕铁硼磁体及其制备方法
CN104966606A (zh) 一种低失重稀土-铁-硼磁体的制备
JP2021077868A (ja) Ｎｄ−Ｆｅ−Ｂ系焼結磁性体の製造方法
CN108364739B (zh) 钕铁硼磁体及其制备方法
CN111477446A (zh) 一种钕铁硼系烧结磁体及其制备方法
CN111312463A (zh) 一种稀土永磁材料及其制备方法和应用
CN102011049A (zh) 一种Ta掺杂的FeCo基软磁合金及其制备方法

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20160810

RJ01 Rejection of invention patent application after publication