CN110136949B - 一种耐腐蚀烧结钕铁硼磁体表面处理方法 - Google Patents
一种耐腐蚀烧结钕铁硼磁体表面处理方法 Download PDFInfo
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- 230000007797 corrosion Effects 0.000 title claims abstract description 33
- 238000005260 corrosion Methods 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title claims abstract description 32
- 229910001172 neodymium magnet Inorganic materials 0.000 title claims abstract description 31
- 238000004381 surface treatment Methods 0.000 title claims abstract description 9
- 239000002344 surface layer Substances 0.000 claims abstract description 26
- 230000008569 process Effects 0.000 claims abstract description 16
- 239000013078 crystal Substances 0.000 claims abstract description 14
- 238000000137 annealing Methods 0.000 claims description 19
- 229910045601 alloy Inorganic materials 0.000 claims description 11
- 239000000956 alloy Substances 0.000 claims description 11
- 238000007670 refining Methods 0.000 claims description 11
- 239000010410 layer Substances 0.000 claims description 10
- 239000007789 gas Substances 0.000 claims description 9
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- 230000010355 oscillation Effects 0.000 claims description 5
- 230000009471 action Effects 0.000 claims description 3
- 229910052786 argon Inorganic materials 0.000 claims description 3
- 239000011261 inert gas Substances 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 238000005520 cutting process Methods 0.000 claims description 2
- 238000005496 tempering Methods 0.000 claims 2
- 239000002131 composite material Substances 0.000 abstract description 10
- 230000006872 improvement Effects 0.000 abstract description 5
- 239000000203 mixture Substances 0.000 abstract 1
- 238000002203 pretreatment Methods 0.000 abstract 1
- 238000006056 electrooxidation reaction Methods 0.000 description 12
- 238000012360 testing method Methods 0.000 description 12
- 238000005422 blasting Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 8
- 238000005238 degreasing Methods 0.000 description 7
- 238000005554 pickling Methods 0.000 description 7
- 238000005406 washing Methods 0.000 description 7
- 239000011248 coating agent Substances 0.000 description 6
- 238000000576 coating method Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 5
- 230000001681 protective effect Effects 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 238000001035 drying Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000004321 preservation Methods 0.000 description 4
- 229910052761 rare earth metal Inorganic materials 0.000 description 4
- 150000002910 rare earth metals Chemical class 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 239000010935 stainless steel Substances 0.000 description 4
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- QJVKUMXDEUEQLH-UHFFFAOYSA-N [B].[Fe].[Nd] Chemical compound [B].[Fe].[Nd] QJVKUMXDEUEQLH-UHFFFAOYSA-N 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000005237 degreasing agent Methods 0.000 description 2
- 239000013527 degreasing agent Substances 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229910017604 nitric acid Inorganic materials 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000003746 surface roughness Effects 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 239000003929 acidic solution Substances 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001808 coupling effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000005488 sandblasting Methods 0.000 description 1
- 238000005480 shot peening Methods 0.000 description 1
- 238000010301 surface-oxidation reaction Methods 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000004506 ultrasonic cleaning Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/26—Methods of annealing
- C21D1/30—Stress-relieving
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D7/00—Modifying the physical properties of iron or steel by deformation
- C21D7/02—Modifying the physical properties of iron or steel by deformation by cold working
- C21D7/04—Modifying the physical properties of iron or steel by deformation by cold working of the surface
- C21D7/06—Modifying the physical properties of iron or steel by deformation by cold working of the surface by shot-peening or the like
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
- C23G1/08—Iron or steel
- C23G1/085—Iron or steel solutions containing HNO3
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/0253—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing permanent magnets
- H01F41/026—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing permanent magnets protecting methods against environmental influences, e.g. oxygen, by surface treatment
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Crystallography & Structural Chemistry (AREA)
- Power Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Child & Adolescent Psychology (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Hard Magnetic Materials (AREA)
- Manufacturing Cores, Coils, And Magnets (AREA)
Abstract
Description
试样 | Br / kGs | Hcj / kOe | (BH)max / MGOe |
0min | 14.01 | 16.84 | 47.39 |
20KHz(5min)+10KHz(5min) | 13.98 | 16.54 | 47.27 |
试样 | Ecorr / V | Icorr / μA·cm<sup>2</sup> |
0min | 0.8519 | 45.78 |
20KHz(5min)+10KHz(5min) | 0.7533 | 2.693 |
试样 | Br / kGs | Hcj / kOe | (BH)max / MGOe |
1mm硬质合金球(10min) | 14 | 16.8 | 47.59 |
3mm硬质合金球(10min) | 13.72 | 15.95 | 46.33 |
1mm不锈钢球(10min) | 13.8 | 16.31 | 46.64 |
3mm不锈钢球(10min) | 13.69 | 15.86 | 46.28 |
试样 | Ecorr / V | Icorr / μA·cm<sup>2</sup> |
1mm硬质合金球(10min) | 0.7533 | 2.693 |
3mm硬质合金球(10min) | 0.8014 | 19.07 |
1mm不锈钢球(10min) | 0.7833 | 8.746 |
3mm不锈钢球(10min) | 0.8031 | 13.25 |
试样 | Br / kGs | Hcj / kOe | (BH)max / MGOe |
Ar保护(10min) | 14 | 16.8 | 47.59 |
CO2保护(10min) | 13.98 | 16.54 | 47.27 |
N2保护(10min) | 13.96 | 16.84 | 47.27 |
空气(10min) | 12.78 | 15.26 | 43.55 |
试样 | Ecorr / V | Icorr / μA·cm<sup>2</sup> |
Ar保护(10min) | 0.7533 | 2.693 |
CO2保护(10min) | 0.7699 | 4.546 |
N2保护(10min) | 0.7674 | 5.225 |
空气(10min) | 0.8214 | 16.2 |
试样 | Hcj / kOe | Br / kGs | (BH)max / MGOe |
100个/cm<sup>2</sup> | 13.8 | 16.35 | 46.64 |
200个/ cm<sup>2</sup> | 13.79 | 16.39 | 47.9 |
300个/ cm<sup>2</sup> | 13.98 | 16.54 | 47.27 |
试样 | Ecorr / V | Icorr / μA·cm<sup>2</sup> |
100个/cm<sup>2</sup> | 0.7874 | 8.746 |
200个/ cm<sup>2</sup> | 0.7533 | 2.693 |
300个/ cm<sup>2</sup> | 0.7896 | 10.865 |
试样 | Br / kGs | Hcj / kOe | (BH)max / MGOe |
20KHz(5min)+10KHz(5min) | 14 | 16.8 | 47.59 |
10KHz低频冲击(10min) | 13.96 | 16.84 | 47.27 |
20KHz高频冲击(10min) | 12.92 | 16.12 | 45.96 |
试样 | Ecorr / V | Icorr / μA·cm<sup>2</sup> |
20KHz(5min)+10KHz(5min) | 0.7533 | 2.693 |
10KHz低频冲击(10min) | 0.8214 | 31.71 |
20KHz高频冲击(10min) | 0.8634 | 56.07 |
试样 | Br / kGs | Hcj / kOe | (BH)max / MGOe |
380℃退火(50min) | 14 | 16.8 | 47.59 |
380℃退火(90min) | 13.98 | 16.54 | 47.9 |
450℃退火(50min) | 13.79 | 16.39 | 47.27 |
450℃退火(90min) | 13.8 | 16.35 | 46.64 |
试样 | Ecorr / V | Icorr / μA·cm<sup>2</sup> |
380℃退火(50min) | 0.7533 | 2.693 |
380℃退火(90min) | 0.7796 | 26.54 |
450℃退火(50min) | 0.7986 | 3.24 |
450℃退火(90min) | 0.8519 | 45.78 |
Claims (3)
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CN201910329265.9A CN110136949B (zh) | 2019-04-23 | 2019-04-23 | 一种耐腐蚀烧结钕铁硼磁体表面处理方法 |
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CN201910329265.9A CN110136949B (zh) | 2019-04-23 | 2019-04-23 | 一种耐腐蚀烧结钕铁硼磁体表面处理方法 |
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CN110136949B true CN110136949B (zh) | 2022-03-25 |
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CN110957094B (zh) * | 2019-12-23 | 2022-07-15 | 厦门优星电子科技有限公司 | 一种钕铁硼磁铁的烧结方法 |
CN112712954B (zh) * | 2020-12-23 | 2022-11-04 | 安徽大地熊新材料股份有限公司 | 烧结钕铁硼磁体的制备方法 |
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