CN107731438A - A kind of rare earth permanent-magnetic material and preparation method thereof - Google Patents
A kind of rare earth permanent-magnetic material and preparation method thereof Download PDFInfo
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- CN107731438A CN107731438A CN201711053054.4A CN201711053054A CN107731438A CN 107731438 A CN107731438 A CN 107731438A CN 201711053054 A CN201711053054 A CN 201711053054A CN 107731438 A CN107731438 A CN 107731438A
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- 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
- H01F1/058—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IVa elements, e.g. Gd2Fe14C
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/14—Treatment of metallic powder
- B22F1/142—Thermal or thermo-mechanical treatment
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/005—Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/008—Ferrous alloys, e.g. steel alloys containing tin
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/50—Ferrous alloys, e.g. steel alloys containing chromium with nickel with titanium or zirconium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/52—Ferrous alloys, e.g. steel alloys containing chromium with nickel with cobalt
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/54—Ferrous alloys, e.g. steel alloys containing chromium with nickel with boron
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- Inorganic Chemistry (AREA)
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Abstract
The present invention relates to a kind of rare earth permanent-magnetic material and preparation method thereof, rare earth permanent-magnetic material includes the component of following parts by weight：20 parts of 30 parts of rare earth elements, 40 parts of 50 parts of iron, 12 parts of boron, 0.5 2 parts of titaniums, 0.2 0.7 silicon, 0.5 2 parts of cobalts, 0.07 0.2 parts of tin, 0.8 1.5 parts of zirconiums, 0.3 0.9 parts of chromium, 12 parts of nickel.The rare earth permanent-magnetic material rotproofness of the present invention is good, and good mechanical performance, cost is cheap, and stability is high, can be applied to large-scale industrial production.
Description
Technical field
The present invention relates to technical field of alloy material, and in particular to a kind of rare earth permanent-magnetic material and preparation method thereof.
Background technology
Rare earth permanent-magnetic material is the intermetallic compound formed using thulium and magnesium-yttrium-transition metal as matrix
Permanent-magnet material.Permanent-magnet material is widely used to the fields such as society, production, life, national defence and space flight, turns into support social progress
Critical function material.With the progress of industrial expansion and society, the usage amount of permanent-magnet material increases year by year, production cost
More and more higher.But existing rare earth material has high electro-chemical activity, and the structure of sintered magnet is not fine and close enough, exists big
Metering-orifice gap, corrosion resistance is poor, greatly limit its use range.
The content of the invention
The technical problems to be solved by the invention are in view of the shortcomings of the prior art, there is provided a kind of rare earth permanent-magnetic material.
The technical scheme that the present invention solves above-mentioned technical problem is as follows：A kind of rare earth permanent-magnetic material, including following parts by weight
Component：20 parts of -30 parts of rare earth elements, 40 parts of -50 parts of iron, 1-2 parts boron, 0.5-2 parts titanium, 0.2-0.7 silicon, 0.5-2 parts cobalt,
0.07-0.2 parts tin, 0.8-1.5 parts zirconium, 0.3-0.9 parts chromium, 1-2 part nickel.
The beneficial effects of the invention are as follows：The rare earth permanent-magnetic material rotproofness of the present invention is good, good mechanical performance, and cost is low
Honest and clean, stability is high, can be applied to large-scale industrial production.
On the basis of above-mentioned technical proposal, the present invention can also do following improvement.
Further, the component of following parts by weight is included：25 parts of rare earth elements, 45 parts of iron, 1.5 parts of boron, 1 part of titanium, 0.5 silicon, 1
Part cobalt, 0.12 part of tin, 1.2 parts of zirconiums, 0.5 part of chromium, 1.5 parts of nickel.
Further, the component of following parts by weight is included：28 parts of rare earth elements, 47 parts of iron, 1.8 parts of boron, 1.5 parts of titaniums, 0.6
Silicon, 1.5 parts of cobalts, 0.15 part of tin, 1.1 parts of zirconiums, 0.7 part of chromium, 1.3 parts of nickel.
Further, the rare earth element includes praseodymium, lanthanum, erbium and beryllium.
Further, in the rare earth element, praseodymium, lanthanum, the parts by weight ratio of erbium and beryllium are 5:2:3:2.5.
A kind of preparation method of rare earth permanent-magnetic material, comprises the following steps：
(1) rare earth alloy powder for including said components is prepared；
(2) rare earth alloy powder is put into organic solvent and infiltrated；
(3) rare earth alloy powder after infiltration is put into heat-treatment furnace and be heat-treated, while carry out gas ionization, institute
The voltage for stating gas ionization is 200-1000V, current density 0.1-0.8mA/cm2；
(4) take out and cool down to obtain rare earth permanent-magnetic material.
Further, the organic solvent is ethylenediamine.
Further, the heat treatment temperature is 200-600 DEG C, and heat treatment environment is anaerobic atmospheric pressure environment.
Embodiment
The principles and features of the present invention are described below, and the given examples are served only to explain the present invention, is not intended to limit
Determine the scope of the present invention.
Embodiment 1
A kind of rare earth permanent-magnetic material of the present embodiment, include the component of following parts by weight：20 parts of rare earth elements, 40 parts of iron, 1
Part boron, 0.5 part of titanium, 0.2 silicon, 0.5 part of cobalt, 0.07 part of tin, 0.8 part of zirconium, 0.3 part of chromium, 1 part of nickel.
The rare earth permanent-magnetic material rotproofness of the present embodiment is good, and good mechanical performance, cost is cheap, and stability is high, can answer
For large-scale industrial production.
The rare earth element of the present embodiment includes praseodymium, lanthanum, erbium and beryllium.
In the rare earth element of the present embodiment, praseodymium, lanthanum, the parts by weight ratio of erbium and beryllium are 5:2:3:2.5.
The preparation method of the rare earth permanent-magnetic material of the present embodiment, comprises the following steps：
(1) rare earth alloy powder for including said components is prepared；
(2) rare earth alloy powder is put into organic solvent and infiltrated；
(3) rare earth alloy powder after infiltration is put into heat-treatment furnace and be heat-treated, while carry out gas ionization, institute
The voltage for stating gas ionization is 200V, current density 0.1mA/cm2；
(4) take out and cool down to obtain rare earth permanent-magnetic material.
The organic solvent of the present embodiment is ethylenediamine.
The heat treatment temperature of embodiment is 200 DEG C, and heat treatment environment is anaerobic atmospheric pressure environment.
Embodiment 2
A kind of rare earth permanent-magnetic material of the present embodiment, include the component of following parts by weight：25 parts of rare earth elements, 45 parts of iron,
1.5 parts of boron, 1 part of titanium, 0.5 silicon, 1 part of cobalt, 0.12 part of tin, 1.2 parts of zirconiums, 0.5 part of chromium, 1.5 parts of nickel.
The rare earth permanent-magnetic material rotproofness of the present embodiment is good, and good mechanical performance, cost is cheap, and stability is high, can answer
For large-scale industrial production.
The rare earth element of the present embodiment includes praseodymium, lanthanum, erbium and beryllium.
In the rare earth element of the present embodiment, praseodymium, lanthanum, the parts by weight ratio of erbium and beryllium are 5:2:3:2.5.
The preparation method of the rare earth permanent-magnetic material of the present embodiment, comprises the following steps：
(1) rare earth alloy powder for including said components is prepared；
(2) rare earth alloy powder is put into organic solvent and infiltrated；
(3) rare earth alloy powder after infiltration is put into heat-treatment furnace and be heat-treated, while carry out gas ionization, institute
The voltage for stating gas ionization is 300V, current density 0.3mA/cm2；
(4) take out and cool down to obtain rare earth permanent-magnetic material.
The organic solvent of the present embodiment is ethylenediamine.
The heat treatment temperature of embodiment is 300 DEG C, and heat treatment environment is anaerobic atmospheric pressure environment.
Embodiment 3
A kind of rare earth permanent-magnetic material of the present embodiment, include the component of following parts by weight：28 parts of rare earth elements, 47 parts of iron,
1.8 parts of boron, 1.5 parts of titaniums, 0.6 silicon, 1.5 parts of cobalts, 0.15 part of tin, 1.1 parts of zirconiums, 0.7 part of chromium, 1.3 parts of nickel.
The rare earth permanent-magnetic material rotproofness of the present embodiment is good, and good mechanical performance, cost is cheap, and stability is high, can answer
For large-scale industrial production.
The rare earth element of the present embodiment includes praseodymium, lanthanum, erbium and beryllium.
In the rare earth element of the present embodiment, praseodymium, lanthanum, the parts by weight ratio of erbium and beryllium are 5:2:3:2.5.
The preparation method of the rare earth permanent-magnetic material of the present embodiment, comprises the following steps：
(1) rare earth alloy powder for including said components is prepared；
(2) rare earth alloy powder is put into organic solvent and infiltrated；
(3) rare earth alloy powder after infiltration is put into heat-treatment furnace and be heat-treated, while carry out gas ionization, institute
The voltage for stating gas ionization is 600V, current density 0.6mA/cm2；
(4) take out and cool down to obtain rare earth permanent-magnetic material.
The organic solvent of the present embodiment is ethylenediamine.
The heat treatment temperature of embodiment is 400 DEG C, and heat treatment environment is anaerobic atmospheric pressure environment.
Embodiment 4
A kind of rare earth permanent-magnetic material of the present embodiment, include the component of following parts by weight：30 parts of rare earth elements, 50 parts of iron, 2
Part boron, 2 parts of titaniums, 0.7 silicon, 2 parts of cobalts, 0.2 part of tin, 1.5 parts of zirconiums, 0.9 part of chromium, 2 parts of nickel.
The rare earth permanent-magnetic material rotproofness of the present embodiment is good, and good mechanical performance, cost is cheap, and stability is high, can answer
For large-scale industrial production.
The rare earth element of the present embodiment includes praseodymium, lanthanum, erbium and beryllium.
In the rare earth element of the present embodiment, praseodymium, lanthanum, the parts by weight ratio of erbium and beryllium are 5:2:3:2.5.
The preparation method of the rare earth permanent-magnetic material of the present embodiment, comprises the following steps：
(1) rare earth alloy powder for including said components is prepared；
(2) rare earth alloy powder is put into organic solvent and infiltrated；
(3) rare earth alloy powder after infiltration is put into heat-treatment furnace and be heat-treated, while carry out gas ionization, institute
The voltage for stating gas ionization is 1000V, current density 0.8mA/cm2；
(4) take out and cool down to obtain rare earth permanent-magnetic material.
The organic solvent of the present embodiment is ethylenediamine.
The heat treatment temperature of embodiment is 600 DEG C, and heat treatment environment is anaerobic atmospheric pressure environment.
Comparative example 1
A kind of rare earth permanent-magnetic material, include the component of following parts by weight：20 parts of rare earth elements, 40 parts of iron, 1 part of boron, 0.5 part
Titanium, 0.5 part of cobalt, 0.07 part of tin, 0.8 part of zirconium, 0.3 part of chromium, 1 part of nickel.The rare earth element includes lanthanum, erbium and beryllium.The rare earth
In element, the parts by weight ratio of lanthanum, erbium and beryllium is 2:3:2.5.Preparation method is same as Example 1.
Comparative example 2
A kind of rare earth permanent-magnetic material, include the component of following parts by weight：20 parts of rare earth elements, 40 parts of iron, 1 part of boron, 0.5 part
Titanium, 0.2 silicon, 0.5 part of cobalt, 0.07 part of tin, 0.8 part of zirconium, 1 part of nickel.The rare earth element includes praseodymium, erbium and beryllium.The rare earth member
In element, the parts by weight ratio of praseodymium, erbium and beryllium is 5:2:3.Preparation method is same as Example 1.
Embodiment 1-3 and comparative example are determined using the universal testing machine CMT51505 of China National Measuring Science Research Inst.
1-2 mechanical property, to detect the decay resistance of the present embodiment permanent-magnet material.As a result it is as shown in table 1.
The performance of the rare earth permanent-magnetic material of table 1
| Fire proofing material | Weight loss (mg/cm2) | Bending strength (MPa) |
| Embodiment 1 | 0.3 | 397.1 |
| Embodiment 2 | 0.32 | 387.0 |
| Embodiment 3 | 0.29 | 379.1 |
| Comparative example 1 | 0.39 | 352.7 |
| Comparative example 2 | 0.41 | 364.1 |
As shown in Table 1, rare earth permanent-magnetic material of the invention has higher bending resistance while decay resistance is improved
Intensity；After a certain component is eliminated in comparative example, corrosion resistance and bending strength can all decline.
It is remanent magnetism 8.3kGs, 8.6kGs and 8.8kGs that the present embodiment, which finally gives Magnetic Properties of Magnetic, and magnetic energy product is
13.5MGOe, 14.2MGOe and 14.7MGOe
The foregoing is only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent substitution and improvements made etc., it should be included in the scope of the protection.
Claims (8)
1. a kind of rare earth permanent-magnetic material, it is characterised in that include the component of following parts by weight：20 parts of -30 parts of rare earth elements, 40
- 50 parts of iron of part, 1-2 parts boron, 0.5-2 parts titanium, 0.2-0.7 silicon, 0.5-2 parts cobalt, 0.07-0.2 parts tin, 0.8-1.5 parts zirconium, 0.3-
0.9 part of chromium, 1-2 part nickel.
2. a kind of rare earth permanent-magnetic material according to claim 1, it is characterised in that include the component of following parts by weight：25 parts
Rare earth element, 45 parts of iron, 1.5 parts of boron, 1 part of titanium, 0.5 silicon, 1 part of cobalt, 0.12 part of tin, 1.2 parts of zirconiums, 0.5 part of chromium, 1.5 parts of nickel.
3. a kind of rare earth permanent-magnetic material according to claim 1, it is characterised in that include the component of following parts by weight：28 parts
Rare earth element, 47 parts of iron, 1.8 parts of boron, 1.5 parts of titaniums, 0.6 silicon, 1.5 parts of cobalts, 0.15 part of tin, 1.1 parts of zirconiums, 0.7 part of chromium, 1.3 parts
Nickel.
4. according to a kind of any one of claims 1 to 3 rare earth permanent-magnetic material, it is characterised in that the rare earth element includes
Praseodymium, lanthanum, erbium and beryllium.
A kind of 5. rare earth permanent-magnetic material according to claim 4, it is characterised in that in the rare earth element, praseodymium, lanthanum, erbium and
The parts by weight ratio of beryllium is 5:2:3:2.5.
6. a kind of preparation method of rare earth permanent-magnetic material, it is characterised in that comprise the following steps：
(1) rare earth alloy powder for including any one of claim 1 to 5 component is prepared；
(2) rare earth alloy powder is put into organic solvent and infiltrated；
(3) rare earth alloy powder after infiltration is put into heat-treatment furnace and be heat-treated, while carry out gas ionization, the gas
The voltage of volume ionization is 200-1000V, current density 0.1-0.8mA/cm2；
(4) take out and cool down to obtain rare earth permanent-magnetic material.
7. a kind of preparation method of rare earth permanent-magnetic material according to claim 6, it is characterised in that the organic solvent is second
Diamines.
8. a kind of preparation method of rare earth permanent-magnetic material according to claim 6, it is characterised in that the heat treatment temperature is
200-600 DEG C, heat treatment environment is anaerobic atmospheric pressure environment.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002064010A (en) * | 2000-08-22 | 2002-02-28 | Shin Etsu Chem Co Ltd | High-resistivity rare earth magnet and its manufacturing method |
| CN101256859A (en) * | 2007-04-16 | 2008-09-03 | 有研稀土新材料股份有限公司 | Rare-earth alloy casting slice and method of producing the same |
| CN103624248A (en) * | 2012-08-28 | 2014-03-12 | 有研稀土新材料股份有限公司 | Preparation method for rare earth permanent magnet powder |
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2017
- 2017-10-31 CN CN201711053054.4A patent/CN107731438A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002064010A (en) * | 2000-08-22 | 2002-02-28 | Shin Etsu Chem Co Ltd | High-resistivity rare earth magnet and its manufacturing method |
| CN101256859A (en) * | 2007-04-16 | 2008-09-03 | 有研稀土新材料股份有限公司 | Rare-earth alloy casting slice and method of producing the same |
| CN103624248A (en) * | 2012-08-28 | 2014-03-12 | 有研稀土新材料股份有限公司 | Preparation method for rare earth permanent magnet powder |
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Application publication date: 20180223 |