CN103646741B - A kind of neodymium-iron-boron magnetic material - Google Patents
A kind of neodymium-iron-boron magnetic material Download PDFInfo
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- CN103646741B CN103646741B CN201310593655.XA CN201310593655A CN103646741B CN 103646741 B CN103646741 B CN 103646741B CN 201310593655 A CN201310593655 A CN 201310593655A CN 103646741 B CN103646741 B CN 103646741B
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Abstract
The present invention relates to a kind of neodymium-iron-boron magnetic material, by weight, comprising: praseodymium neodymium: 27-32%; Dysprosium iron: 0-5%; Gadolinium iron: 0-4%; Ferro-boron: 5-5.5%; Cobalt: 0-2%; Gallium: 0-0.3%; Aluminium: 0.2-1.4%; Copper: 0.1-0.2%; Ferro-niobium: 0.3-0.5%; Surplus is iron. The present invention provides neodymium-iron-boron magnetic material to have higher magnetic energy product and coercive force, and magnetic behavior is better, can meet the demand of most electronic product.
Description
Technical field
The invention belongs to field of magnetic material, particularly relate to a kind of neodymium-iron-boron magnetic material.
Background technology
At present, novel material industry as new high-tech industry basis gets most of the attention. As the rare earth permanent-magnetic material of new material industry important component part, it is widely used in the industries such as the energy, traffic, machinery, medical treatment, IT, household electrical appliances, its product relates to a lot of fields of national economy, and its output and consumption also become one of important symbol of a measurement national overall national strength and national economic development level. Especially neodymium iron boron is as third generation rare earth permanent-magnetic material, has wide market outlook, is mainly used in computer disc driver, NMR imaging instrument and various audio equipment, microwave communication, magnetic machinery, household electrical appliance etc. At present, neodymium iron boron industry also enters key developing period, and the output of the neodymium iron boron of China has accounted for about the 40% of Gross World Product.
But, the magnetic behavior of neodymium-iron-boron magnetic material that existing market is sold is also good not, it is difficult to meet some to the demand of the higher product of magnetic behavior requirement.
Summary of the invention
It is an object of the invention to for the problems referred to above, it is provided that a kind of good neodymium-iron-boron magnetic material of magnetic behavior, solves the technical problem existing for prior art.
For achieving the above object, present invention employs following technical proposal: a kind of neodymium-iron-boron magnetic material, by weight, comprising:
Praseodymium neodymium: 27-32%;
Dysprosium iron: 0-5%;
Gadolinium iron: 0-4%;
Ferro-boron: 5-5.5%;
Cobalt: 0-2%;
Gallium: 0-0.3%;
Aluminium: 0.2-1.4%;
Copper: 0.1-0.2%;
Ferro-niobium: 0.3-0.5%;
Surplus is iron.
In above-mentioned neodymium-iron-boron magnetic material, it may be preferred that comprising: praseodymium neodymium 27.4%, dysprosium iron 4.6%, gadolinium iron 0.2%, ferro-boron 5.5%, cobalt 0.2%, gallium 0.25%, aluminium 0.2%, copper 0.2%, ferro-niobium 0.33%, surplus is iron.
In above-mentioned neodymium-iron-boron magnetic material, it may be preferred that comprising: praseodymium neodymium 31.9%, dysprosium iron 0.3%, gadolinium iron 3.6%, ferro-boron 5.1%, cobalt 1.98%, gallium 0.04%, aluminium 1.35%, copper 0.12%, ferro-niobium 0.49%, surplus is iron.
The present invention provides neodymium-iron-boron magnetic material to have higher magnetic energy product and coercive force, and magnetic behavior is better, can meet the demand of most electronic product.
Embodiment
The embodiment of the present invention provides a kind of neodymium-iron-boron magnetic material, by weight, comprising:
Praseodymium neodymium: 27-32%;
Dysprosium iron: 0-5%;
Gadolinium iron: 0-4%;
Ferro-boron: 5-5.5%;
Cobalt: 0-2%;
Gallium: 0-0.3%;
Aluminium: 0.2-1.4%;
Copper: 0.1-0.2%;
Ferro-niobium: 0.3-0.5%;
Surplus is iron.
In one embodiment, this neodymium-iron-boron magnetic material comprises: praseodymium neodymium 27.4%, dysprosium iron 4.6%, gadolinium iron 0.2%, ferro-boron 5.5%, cobalt 0.2%, gallium 0.25%, aluminium 0.2%, copper 0.2%, ferro-niobium 0.33%, and surplus is iron.
In another embodiment, this neodymium-iron-boron magnetic material comprises: praseodymium neodymium 31.9%, dysprosium iron 0.3%, gadolinium iron 3.6%, ferro-boron 5.1%, cobalt 1.98%, gallium 0.04%, aluminium 1.35%, copper 0.12%, ferro-niobium 0.49%, and surplus is iron.
It should be noted that, above-mentioned neodymium-iron-boron magnetic material can be shaping by the mode of sintering, obtains the magnetic substance of desired shape.
The present invention provides neodymium-iron-boron magnetic material to have higher magnetic energy product and coercive force, and magnetic behavior is better, can meet the demand of most electronic product.
Specific embodiment described herein is only to the present invention's spirit explanation for example. Described specific embodiment can be made various amendment or supplements or adopt similar mode to substitute by those skilled in the art, but can't deviate the spirit of the present invention or surmount the scope that appended claims defines.
Although more employing the terms such as praseodymium neodymium, dysprosium iron, gadolinium iron, ferro-boron, ferro-niobium herein, but do not get rid of the possibility using other term. These terms are used to be only used to describe more easily and explain the essence of the present invention; They are construed to any a kind of additional restriction all disagree with the present invention's spirit.
Claims (2)
1. a neodymium-iron-boron magnetic material, it is characterised in that, by weight, comprising: praseodymium neodymium 27.4%, dysprosium iron 4.6%, gadolinium iron 0.2%, ferro-boron 5.5%, cobalt 0.2%, gallium 0.25%, aluminium 0.2%, copper 0.2%, ferro-niobium 0.33%, surplus is iron.
2. neodymium-iron-boron magnetic material according to claim 1, it is characterised in that, comprising: praseodymium neodymium 31.9%, dysprosium iron 0.3%, gadolinium iron 3.6%, ferro-boron 5.1%, cobalt 1.98%, gallium 0.04%, aluminium 1.35%, copper 0.12%, ferro-niobium 0.49%, surplus is iron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310593655.XA CN103646741B (en) | 2013-11-21 | 2013-11-21 | A kind of neodymium-iron-boron magnetic material |
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| CN201310593655.XA CN103646741B (en) | 2013-11-21 | 2013-11-21 | A kind of neodymium-iron-boron magnetic material |
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| Publication Number | Publication Date |
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| CN103646741A CN103646741A (en) | 2014-03-19 |
| CN103646741B true CN103646741B (en) | 2016-06-15 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105118597A (en) * | 2015-09-18 | 2015-12-02 | 江苏普隆磁电有限公司 | High-performance neodymium-iron-boron permanent magnet and production method thereof |
| CN109326404B (en) * | 2018-10-25 | 2020-03-31 | 徐州永丰磁业有限公司 | Neodymium-iron-boron magnetic material and preparation method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03173104A (en) * | 1989-11-30 | 1991-07-26 | Shin Etsu Chem Co Ltd | Manufacture of corrosion resistant rare earth magnet |
| US5876518A (en) * | 1995-02-23 | 1999-03-02 | Hitachi Metals, Ltd. | R-T-B-based, permanent magnet, method for producing same, and permanent magnet-type motor and actuator comprising same |
| CN101071667A (en) * | 2007-04-12 | 2007-11-14 | 北京中科三环高技术股份有限公司 | Gadolinium-containing Nd-Fe-B rare earth permanent magnetic material dn its manufacturing method |
| CN101409121A (en) * | 2008-08-05 | 2009-04-15 | 中钢集团安徽天源科技股份有限公司 | Neodymium iron boron permanent magnet for motor and manufacturing method thereof |
| CN101630557A (en) * | 2008-07-16 | 2010-01-20 | 宁波科宁达工业有限公司 | Gadolinium-containing sintered rare earth permanent magnet alloy and preparation method thereof |
| CN102376406A (en) * | 2011-11-21 | 2012-03-14 | 宁波市展发磁业科技有限公司 | Novel magnetic material |
-
2013
- 2013-11-21 CN CN201310593655.XA patent/CN103646741B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03173104A (en) * | 1989-11-30 | 1991-07-26 | Shin Etsu Chem Co Ltd | Manufacture of corrosion resistant rare earth magnet |
| US5876518A (en) * | 1995-02-23 | 1999-03-02 | Hitachi Metals, Ltd. | R-T-B-based, permanent magnet, method for producing same, and permanent magnet-type motor and actuator comprising same |
| CN101071667A (en) * | 2007-04-12 | 2007-11-14 | 北京中科三环高技术股份有限公司 | Gadolinium-containing Nd-Fe-B rare earth permanent magnetic material dn its manufacturing method |
| CN101630557A (en) * | 2008-07-16 | 2010-01-20 | 宁波科宁达工业有限公司 | Gadolinium-containing sintered rare earth permanent magnet alloy and preparation method thereof |
| CN101409121A (en) * | 2008-08-05 | 2009-04-15 | 中钢集团安徽天源科技股份有限公司 | Neodymium iron boron permanent magnet for motor and manufacturing method thereof |
| CN102376406A (en) * | 2011-11-21 | 2012-03-14 | 宁波市展发磁业科技有限公司 | Novel magnetic material |
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| CN103646741A (en) | 2014-03-19 |
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Granted publication date: 20160615 Termination date: 20181121 |