CN1162871C - 具有耐腐蚀膜的铁-硼-稀土基永磁体及其制造工艺 - Google Patents
具有耐腐蚀膜的铁-硼-稀土基永磁体及其制造工艺 Download PDFInfo
- Publication number
- CN1162871C CN1162871C CNB991183371A CN99118337A CN1162871C CN 1162871 C CN1162871 C CN 1162871C CN B991183371 A CNB991183371 A CN B991183371A CN 99118337 A CN99118337 A CN 99118337A CN 1162871 C CN1162871 C CN 1162871C
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- China
- Prior art keywords
- film
- magnet
- oxide film
- metal oxide
- permanent magnet
- 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.)
- Expired - Lifetime
Links
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- 239000007788 liquid Substances 0.000 description 3
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- VXUYXOFXAQZZMF-UHFFFAOYSA-N titanium(IV) isopropoxide Chemical compound CC(C)O[Ti](OC(C)C)(OC(C)C)OC(C)C VXUYXOFXAQZZMF-UHFFFAOYSA-N 0.000 description 3
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
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- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 2
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- NBTOZLQBSIZIKS-UHFFFAOYSA-N methoxide Chemical compound [O-]C NBTOZLQBSIZIKS-UHFFFAOYSA-N 0.000 description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 2
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 2
- ZGSOBQAJAUGRBK-UHFFFAOYSA-N propan-2-olate;zirconium(4+) Chemical compound [Zr+4].CC(C)[O-].CC(C)[O-].CC(C)[O-].CC(C)[O-] ZGSOBQAJAUGRBK-UHFFFAOYSA-N 0.000 description 2
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- 229910052684 Cerium Inorganic materials 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- AVPWWDMDJXSNOQ-UHFFFAOYSA-N Cl.[O-]CCCC.[Al+3].[O-]CCCC.[O-]CCCC Chemical compound Cl.[O-]CCCC.[Al+3].[O-]CCCC.[O-]CCCC AVPWWDMDJXSNOQ-UHFFFAOYSA-N 0.000 description 1
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- 125000005595 acetylacetonate group Chemical group 0.000 description 1
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- KRVSOGSZCMJSLX-UHFFFAOYSA-L chromic acid Substances O[Cr](O)(=O)=O KRVSOGSZCMJSLX-UHFFFAOYSA-L 0.000 description 1
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- RKTYLMNFRDHKIL-UHFFFAOYSA-N copper;5,10,15,20-tetraphenylporphyrin-22,24-diide Chemical group [Cu+2].C1=CC(C(=C2C=CC([N-]2)=C(C=2C=CC=CC=2)C=2C=CC(N=2)=C(C=2C=CC=CC=2)C2=CC=C3[N-]2)C=2C=CC=CC=2)=NC1=C3C1=CC=CC=C1 RKTYLMNFRDHKIL-UHFFFAOYSA-N 0.000 description 1
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- 238000005886 esterification reaction Methods 0.000 description 1
- XYIBRDXRRQCHLP-UHFFFAOYSA-N ethyl acetoacetate Chemical compound CCOC(=O)CC(C)=O XYIBRDXRRQCHLP-UHFFFAOYSA-N 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- AWJWCTOOIBYHON-UHFFFAOYSA-N furo[3,4-b]pyrazine-5,7-dione Chemical compound C1=CN=C2C(=O)OC(=O)C2=N1 AWJWCTOOIBYHON-UHFFFAOYSA-N 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 229910052732 germanium Inorganic materials 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000001036 glow-discharge mass spectrometry Methods 0.000 description 1
- 229910052735 hafnium Inorganic materials 0.000 description 1
- GPRLSGONYQIRFK-UHFFFAOYSA-N hydron Chemical compound [H+] GPRLSGONYQIRFK-UHFFFAOYSA-N 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- FBAFATDZDUQKNH-UHFFFAOYSA-M iron chloride Chemical compound [Cl-].[Fe] FBAFATDZDUQKNH-UHFFFAOYSA-M 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 229910052746 lanthanum Inorganic materials 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- QMMRZOWCJAIUJA-UHFFFAOYSA-L nickel dichloride Chemical compound Cl[Ni]Cl QMMRZOWCJAIUJA-UHFFFAOYSA-L 0.000 description 1
- LGQLOGILCSXPEA-UHFFFAOYSA-L nickel sulfate Chemical compound [Ni+2].[O-]S([O-])(=O)=O LGQLOGILCSXPEA-UHFFFAOYSA-L 0.000 description 1
- 229910000008 nickel(II) carbonate Inorganic materials 0.000 description 1
- 229910000363 nickel(II) sulfate Inorganic materials 0.000 description 1
- ZULUUIKRFGGGTL-UHFFFAOYSA-L nickel(ii) carbonate Chemical compound [Ni+2].[O-]C([O-])=O ZULUUIKRFGGGTL-UHFFFAOYSA-L 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- WWZKQHOCKIZLMA-UHFFFAOYSA-M octanoate Chemical compound CCCCCCCC([O-])=O WWZKQHOCKIZLMA-UHFFFAOYSA-M 0.000 description 1
- 125000005474 octanoate group Chemical group 0.000 description 1
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- 229920002647 polyamide Polymers 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- LJCNRYVRMXRIQR-OLXYHTOASA-L potassium sodium L-tartrate Chemical compound [Na+].[K+].[O-]C(=O)[C@H](O)[C@@H](O)C([O-])=O LJCNRYVRMXRIQR-OLXYHTOASA-L 0.000 description 1
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- 238000004544 sputter deposition Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- JBQYATWDVHIOAR-UHFFFAOYSA-N tellanylidenegermanium Chemical compound [Te]=[Ge] JBQYATWDVHIOAR-UHFFFAOYSA-N 0.000 description 1
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- 229910052721 tungsten Inorganic materials 0.000 description 1
- 238000001771 vacuum deposition Methods 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
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- 229910000859 α-Fe Inorganic materials 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12465—All metal or with adjacent metals having magnetic properties, or preformed fiber orientation coordinate with shape
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12535—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.] with additional, spatially distinct nonmetal component
- Y10T428/12611—Oxide-containing component
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Abstract
Description
铝化合物 | 催化剂 | 稳定剂 | 有机溶剂 | |
实施例1 | 异丙醇铝 | 硝酸 | 乙酰丙酮 | 乙醇 |
实施例2 | 丁醇铝 | 硝酸+乙酸 | 乙酰乙酸乙酯 | 乙醇+IPA |
实施例3 | 异丙醇铝 | 硝酸 | 乙酰丙酮 | 乙醇 |
实施例4 | 丁醇铝 | 硝酸+乙酸 | 乙酰乙酸乙酯 | 乙醇+IPA |
实施例5 | 丁醇铝 | 盐酸 | 无添加 | 2-甲氧基乙醇 |
铝化合物比例(按Al2O3的wt%) | 摩尔比 | 粘度(N·s/m2) | pH | |||
催化剂/铝化合物 | 稳定剂/铝化合物 | 水/铝化合物 | ||||
实施例1 | 8 | 0.001 | 1.5 | 5 | 0.0036 | 3.1 |
实施例2 | 5 | 0.01(硝酸)2(乙酸) | 1 | 1 | 0.0023 | 3.9 |
实施例3 | 8 | 0.001 | 1.5 | 5 | 0.0036 | 3.1 |
实施例4 | 5 | 0.01(硝酸)2(乙酸) | 1 | 1 | 0.0023 | 3.9 |
实施例5 | 1 | 0.005 | 0 | 0(注1) | 0.002 | 2.4 |
牵拉速率(cm/min) | 热处理 | 备注 | |
实施例1 | 5 | 200℃×20分钟 | |
实施例2 | 5 | 350℃×20分钟 | |
实施例3 | 5 | 200℃×20分钟 | |
实施例4 | 5 | 350℃×20分钟 | |
实施例5 | 5 | 200℃×10分钟 | 重复五次提拉和热处理 |
耐腐蚀性测试前 | 耐腐蚀性测试后 | 测试后的外观 | |||||
Br(T) | iHc(kA/m) | (BH)max(kJ/m3) | Br(T) | iHc(kA/m) | (BH)max(kJ/m3) | ||
实施例1 | 1.13 | 1321 | 242 | 1.12 | 1305 | 236 | 无变化 |
实施例2 | 1.13 | 1321 | 243 | 1.13 | 1313 | 238 | 无变化 |
对比例1 | 1.13 | 1329 | 243 | 1.04 | 1241 | 217 | 局部生锈 |
对比例2 | 1.14 | 1321 | 244 | 1.00 | 1210 | 211 | 整个表面上严重生锈 |
耐腐蚀性测试前 | 耐腐蚀性测试后 | 测试后的外观 | |||||
Br(T) | iHc(kA/m) | (BH)max(kJ/m3) | Br(T) | iHc(kA/m) | (BH)max(kJ/m3) | ||
实施例3 | 1.14 | 1329 | 244 | 1.11 | 1297 | 236 | 无变化 |
实施例4 | 1.13 | 1321 | 243 | 1.13 | 1313 | 238 | 无变化 |
实施例5 | 1.14 | 1321 | 244 | 1.14 | 1313 | 239 | 无变化 |
对比例3 | 1.14 | 1329 | 244 | 1.03 | 1218 | 219 | 局部生锈 |
对比例4 | 1.14 | 1321 | 243 | 1.08 | 1273 | 228 | Ni膜部分剥落 |
金属化合物 | 催化剂 | 稳定剂 | 有机溶剂 | |
实施例6 | 四甲氧基硅烷 | 硝酸 | 无添加 | 乙醇 |
实施例7 | 异丙醇锆 | 硝酸 | 乙酰丙酮 | 乙醇 |
实施例8 | 异丙醇钛 | 硝酸 | 无添加 | 乙醇 |
实施例9 | 四乙氧基硅烷 | 乙酸 | 无添加 | 乙醇+IPA |
实施例10 | 丁醇锆 | 乙酸 | 乙酰乙酸乙酯 | 乙醇+IPA |
实施例11 | 丁醇钛 | 盐酸 | 乙酰丙酮 | 乙醇+IPA |
金属化合物的比例(wt%) | 摩尔比 | 粘度(N·s/m2) | pH | |||
催化剂/金属化合物 | 稳定剂/金属化合物 | 水/金属化合物 | ||||
实施例6 | 10(注1) | 0.001 | 0 | 1 | 0.0018 | 3.2 |
实施例7 | 3(注2) | 0.001 | 1 | 5 | 0.0018 | 3.4 |
实施例8 | 3(注3) | 0.002 | 0 | 1 | 0.0021 | 2.1 |
实施例9 | 5(注1) | 2 | 0 | 5 | 0.0014 | 4.2 |
实施例10 | 5(注2) | 2 | 1.5 | 1 | 0.0017 | 4.0 |
实施例11 | 5(注3) | 0.005 | 1.5 | 3 | 0.0018 | 2.6 |
提拉速率(厘米/分钟) | 热处理 | 注 | |
实施例6 | 5 | 100℃×20分钟 | |
实施例7 | 10 | 200℃×20分钟 | |
实施例8 | 10 | 200℃×20分钟 | |
实施例9 | 10 | 200℃×20分钟 | |
实施例10 | 10 | 350℃×20分钟 | |
实施例11 | 10 | 350℃×20分钟 |
金属氧化物膜 | 厚度(微米) | 膜中碳含量(ppm) | 膜结构 | |
实施例6 | 氧化硅膜 | 0.3 | 350 | 非晶 |
实施例7 | 氧化锆膜 | 0.3 | 380 | 非晶 |
实施例8 | 氧化钛膜 | 0.3 | 380 | 非晶 |
实施例9 | 氧化硅膜 | 0.07 | 90 | 非晶 |
实施例10 | 氧化锆膜 | 0.1 | 140 | 基本是非晶(部分结晶) |
实施例11 | 氧化钛膜 | 0.1 | 140 | 基本是非晶(部分结晶) |
耐腐蚀性测试前 | 耐腐蚀性测试后 | 测试后的外观 | |||||
Br(T) | iHc(kA/m) | (BH)max(kJ/m3) | Br(T) | iHc(kA/m) | (BH)max(kJ/m3) | ||
实施例6 | 1.13 | 1321 | 242 | 1.13 | 1297 | 236 | 无变化 |
实施例7 | 1.13 | 1321 | 242 | 1.12 | 1305 | 236 | 无变化 |
实施例8 | 1.14 | 1321 | 243 | 1.12 | 1297 | 236 | 无变化 |
实施例9 | 1.14 | 1321 | 243 | 1.12 | 1305 | 236 | 无变化 |
实施例10 | 1.14 | 1321 | 244 | 1.12 | 1313 | 238 | 无变化 |
实施例11 | 1.13 | 1321 | 243 | 1.12 | 1305 | 237 | 无变化 |
金属化合物 | 催化剂 | 稳定剂 | 有机溶剂 | |
实施例12 | 四甲氧基硅烷 | 硝酸 | 无添加 | 乙醇 |
实施例13 | 异丙醇锆 | 硝酸 | 乙酰丙酮 | 乙醇 |
实施例14 | 异丙醇钛 | 硝酸 | 无添加 | 乙醇 |
实施例15 | 四乙氧基硅烷 | 乙酸 | 无添加 | 乙醇+IPA |
实施例16 | 丁醇锆 | 乙酸 | 乙酰乙酸乙酯 | 乙醇+IPA |
实施例17 | 丁醇钛 | 盐酸 | 乙酰丙酮 | 乙醇+IPA |
实施例18 | 二甲基二乙氧基硅烷 | 盐酸 | 无添加 | 乙醇 |
实施例19 | 辛酸锆 | 盐酸 | 无添加 | IPA |
实施例20 | 异丙醇钛 | 硝酸 | 无添加 | 乙醇 |
金属化合物的比例(wt%) | 摩尔比 | 粘度(N·s/m2) | pH | |||
催化剂/金属化合物 | 稳定剂/金属化合物 | 水/金属化合物 | ||||
实施例12 | 10(注1) | 0.001 | 0 | 1 | 0.0018 | 3.2 |
实施例13 | 3(注2) | 0.001 | 1 | 5 | 0.0018 | 3.4 |
实施例14 | 3(注3) | 0.002 | 0 | 1 | 0.0021 | 2.1 |
实施例15 | 5(注1) | 2 | 0 | 5 | 0.0014 | 4.2 |
实施例16 | 5(注2) | 2 | 1.5 | 1 | 0.0017 | 4.0 |
实施例17 | 5(注3) | 0.005 | 1.5 | 3 | 0.0018 | 2.6 |
实施例18 | 1(注1) | 0.005 | 0 | 20 | 0.0015 | 2.3 |
实施例19 | 2(注2) | 0.005 | 0 | 0(注4) | 0.0016 | 2.6 |
实施例20 | 3(注3) | 0.002 | 0 | 1 | 0.0021 | 2.1 |
提拉速率(厘米/分钟) | 热处理 | 备注 | |
实施例12 | 5 | 100℃×20分钟 | |
实施例13 | 10 | 200℃×20分钟 | |
实施例14 | 10 | 200℃×20分钟 | |
实施例15 | 10 | 200℃×20分钟 | |
实施例16 | 10 | 350℃×20分钟 | |
实施例17 | 10 | 350℃×20分钟 | |
实施例18 | 5 | 150℃×10分钟 | 重复五次提拉和热处理 |
实施例19 | 5 | 250℃×10分钟 | 重复五次提拉和热处理 |
实施例20 | 5 | 250℃×10分钟 | 重复五次提拉和热处理 |
金属氧化物膜 | 厚度(微米) | 膜中碳含量(ppm) | 膜结构 | |
实施例12 | 氧化硅膜 | 0.3 | 350 | 非晶 |
实施例13 | 氧化锆膜 | 0.3 | 380 | 非晶 |
实施例14 | 氧化钛膜 | 0.3 | 380 | 非晶 |
实施例15 | 氧化硅膜 | 0.08 | 80 | 非晶 |
实施例16 | 氧化锆膜 | 0.1 | 140 | 基本是非晶(部分结晶) |
实施例17 | 氧化钛膜 | 0.1 | 140 | 基本是非晶(部分结晶) |
实施例18 | 氧化硅膜 | 0.8 | 500 | 非晶 |
实施例19 | 氧化锆膜 | 1 | 450 | 基本是非晶(部分结晶) |
实施例20 | 氧化钛膜 | 1 | 320 | 基本是非晶(部分结晶) |
耐腐蚀性测试前 | 耐腐蚀性测试后 | 测试后的外观 | |||||
Br(T) | iHc(kA/m) | (BH)max(kJ/m3) | Br(T) | iHc(kA/m) | (BH)max(kJ/m3) | ||
实施例12 | 1.14 | 1329 | 244 | 1.12 | 1297 | 236 | 无变化 |
实施例13 | 1.14 | 1321 | 244 | 1.12 | 1305 | 236 | 无变化 |
实施例14 | 1.13 | 1321 | 242 | 1.13 | 1313 | 237 | 无变化 |
实施例15 | 1.13 | 1321 | 242 | 1.12 | 1313 | 238 | 无变化 |
实施例16 | 1.13 | 1321 | 242 | 1.13 | 1321 | 239 | 无变化 |
实施例17 | 1.14 | 1321 | 243 | 1.12 | 1313 | 237 | 无变化 |
实施例18 | 1.14 | 1313 | 243 | 1.13 | 1297 | 236 | 无变化 |
实施例19 | 1.14 | 1329 | 244 | 1.13 | 1313 | 238 | 无变化 |
实施例20 | 1.14 | 1329 | 244 | 1.13 | 1305 | 238 | 无变化 |
硅化合物 | 铝化合物 | 催化剂 | 稳定剂 | 有机溶剂 | |
实施例21 | 四甲氧基硅烷 | 异丙醇铝 | 硝酸 | 无添加 | 乙醇 |
实施例22 | 四乙氧基硅烷 | 丁醇铝 | 乙酸 | 无添加 | 乙醇+IPA |
实施例23 | 四甲氧基硅烷 | 异丙醇铝 | 硝酸 | 无添加 | 乙醇 |
实施例24 | 四乙氧基硅烷 | 丁醇铝 | 乙酸 | 无添加 | 乙醇+IPA |
实施例25 | 二甲基二乙氧基硅烷 | 硅-铝复合醇盐(注1) | 盐酸 | 无添加 | 乙醇 |
金属化合物的比例*(wt%) | 摩尔比 | 粘度(N·s/m2) | pH | |||
Al/Si+Al | 催化剂/金属化合物 | 水/金属化合物 | ||||
实施例21 | 10 | 0.05 | 0.001 | 1 | 0.0018 | 3.1 |
实施例22 | 5 | 0.1 | 2 | 5 | 0.0015 | 4.1 |
实施例23 | 10 | 0.05 | 0.001 | 1 | 0.0018 | 3.1 |
实施例24 | 5 | 0.1 | 2 | 5 | 0.0015 | 4.1 |
实施例25 | 1 | 0.2 | 0.005 | 10 | 0.0017 | 2.6 |
提拉速率(厘米/分钟) | 热处理 | 注 | |
实施例21 | 5 | 100℃×20分钟 | |
实施例22 | 5 | 100℃×20分钟 | |
实施例23 | 5 | 100℃×20分钟 | |
实施例24 | 5 | 200℃×20分钟 | |
实施例25 | 5 | 100℃×10分钟 | 重复五次提拉和热处理 |
厚度(μm) | 膜中碳含量(ppm) | 膜结构 | |
实施例21 | 0.2 | 320 | 非晶 |
实施例22 | 0.07 | 210 | 非晶 |
实施例23 | 0.2 | 320 | 非晶 |
实施例24 | 0.07 | 190 | 非晶 |
实施例25 | 0.9 | 450 | 非晶 |
耐腐蚀性测试前 | 耐腐蚀性测试后 | 测试后的外观 | |||||
Br(T) | iHc(kA/m) | (BH)max(kJ/m3) | Br(T) | iHc(kA/m) | (BH)max(kJ/m3) | ||
实施例21 | 1.13 | 1313 | 242 | 1.13 | 1305 | 237 | 无变化 |
实施例22 | 1.14 | 1321 | 243 | 1.13 | 1313 | 238 | 无变化 |
耐腐蚀性测试前 | 耐腐蚀性测试后 | 测试后的外观 | |||||
Br(T) | iHc(kA/m) | (BH)max(kJ/m3) | Br(T) | iHc(kA/m) | (BH)max(kJ/m3) | ||
实施例23 | 1.14 | 1313 | 243 | 1.14 | 1305 | 238 | 无变化 |
实施例24 | 1.13 | 1313 | 242 | 1.13 | 1305 | 237 | 无变化 |
实施例25 | 1.14 | 1321 | 244 | 1.14 | 1297 | 236 | 无变化 |
耐腐蚀性测试前 | 耐腐蚀性测试后 | 测试后的外观 | |||||
Br(T) | iHc(kA/m) | (BH)max(kJ/m3) | Br(T) | iHc(kA/m) | (BH)max(kJ/m3) | ||
实施例26 | 1.13 | 1329 | 243 | 1.11 | 1305 | 236 | 无变化 |
实施例27 | 1.14 | 1329 | 244 | 1.13 | 1313 | 238 | 无变化 |
实施例28 | 1.13 | 1321 | 243 | 1.12 | 1305 | 237 | 无变化 |
实施例29 | 1.14 | 1329 | 244 | 1.13 | 1305 | 237 | 无变化 |
Claims (7)
Applications Claiming Priority (11)
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CN1162871C true CN1162871C (zh) | 2004-08-18 |
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JPH07230906A (ja) | 1994-02-16 | 1995-08-29 | Yazaki Corp | 永久磁石およびその製造方法 |
JPH07302705A (ja) | 1994-05-09 | 1995-11-14 | Daido Steel Co Ltd | 耐食性希土類磁石とその製造方法 |
JPH09289108A (ja) | 1996-04-19 | 1997-11-04 | Sumitomo Special Metals Co Ltd | 密着性のすぐれた電気絶縁性被膜を有するR−Fe−B系永久磁石とその製造方法 |
JPH1074607A (ja) * | 1996-08-30 | 1998-03-17 | Sumitomo Special Metals Co Ltd | 耐食性永久磁石及びその製造方法 |
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1999
- 1999-08-20 EP EP99116400A patent/EP0984460B1/en not_active Expired - Lifetime
- 1999-08-25 US US09/382,588 patent/US6444328B1/en not_active Expired - Lifetime
- 1999-08-26 US US09/383,274 patent/US6251196B1/en not_active Expired - Lifetime
- 1999-08-30 KR KR1019990036340A patent/KR100607297B1/ko active IP Right Grant
- 1999-08-31 KR KR1019990036546A patent/KR100607293B1/ko not_active IP Right Cessation
- 1999-08-31 CN CNB991183371A patent/CN1162871C/zh not_active Expired - Lifetime
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2001
- 2001-05-10 US US09/851,944 patent/US6399147B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US6251196B1 (en) | 2001-06-26 |
KR20000017659A (ko) | 2000-03-25 |
KR20000017644A (ko) | 2000-03-25 |
KR100607293B1 (ko) | 2006-07-28 |
EP0984460A2 (en) | 2000-03-08 |
EP0984460A3 (en) | 2000-07-12 |
US20010030590A1 (en) | 2001-10-18 |
CN1249521A (zh) | 2000-04-05 |
US6444328B1 (en) | 2002-09-03 |
EP0984460B1 (en) | 2004-03-17 |
KR100607297B1 (ko) | 2006-07-28 |
US6399147B2 (en) | 2002-06-04 |
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