JPS6331087B2 - - Google Patents
Info
- Publication number
- JPS6331087B2 JPS6331087B2 JP54088069A JP8806979A JPS6331087B2 JP S6331087 B2 JPS6331087 B2 JP S6331087B2 JP 54088069 A JP54088069 A JP 54088069A JP 8806979 A JP8806979 A JP 8806979A JP S6331087 B2 JPS6331087 B2 JP S6331087B2
- Authority
- JP
- Japan
- Prior art keywords
- examples
- alloy
- plate
- thickness
- same
- 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
Links
- 229910045601 alloy Inorganic materials 0.000 claims description 18
- 239000000956 alloy Substances 0.000 claims description 18
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 13
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 11
- 229910052759 nickel Inorganic materials 0.000 claims description 9
- 238000005253 cladding Methods 0.000 claims description 7
- 239000010949 copper Substances 0.000 claims description 7
- 229910052750 molybdenum Inorganic materials 0.000 claims description 7
- 239000010955 niobium Substances 0.000 claims description 7
- 239000011651 chromium Substances 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 239000011572 manganese Substances 0.000 claims description 6
- 229910052758 niobium Inorganic materials 0.000 claims description 6
- 229910052715 tantalum Inorganic materials 0.000 claims description 6
- 239000010936 titanium Substances 0.000 claims description 6
- 229910052804 chromium Inorganic materials 0.000 claims description 5
- 229910052748 manganese Inorganic materials 0.000 claims description 5
- 229910052710 silicon Inorganic materials 0.000 claims description 5
- 229910052719 titanium Inorganic materials 0.000 claims description 5
- 229910052721 tungsten Inorganic materials 0.000 claims description 5
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 229910017052 cobalt Inorganic materials 0.000 claims description 2
- 239000010941 cobalt Substances 0.000 claims description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 2
- 229910052742 iron Inorganic materials 0.000 claims description 2
- 239000011733 molybdenum Substances 0.000 claims description 2
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 claims description 2
- 239000010703 silicon Substances 0.000 claims description 2
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 claims description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 2
- 239000010937 tungsten Substances 0.000 claims description 2
- 230000035699 permeability Effects 0.000 description 12
- 239000010410 layer Substances 0.000 description 9
- 230000000052 comparative effect Effects 0.000 description 8
- 239000011162 core material Substances 0.000 description 7
- 229910000889 permalloy Inorganic materials 0.000 description 6
- 229910001030 Iron–nickel alloy Inorganic materials 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 238000005482 strain hardening Methods 0.000 description 2
- 229910018559 Ni—Nb Inorganic materials 0.000 description 1
- 238000005097 cold rolling Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
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
- H01F1/12—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 soft-magnetic materials
- H01F1/14—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 soft-magnetic materials metals or alloys
- H01F1/16—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 soft-magnetic materials metals or alloys in the form of sheets
Landscapes
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Heat Treatment Of Nonferrous Metals Or Alloys (AREA)
- Magnetic Heads (AREA)
- Soft Magnetic Materials (AREA)
Description
本発明は、鉄−ニツケル系合金からなる磁気ヘ
ツドコア用素材に関するものであり、さらに詳し
くは鉄−ニツケル系合金を熱間加工又は冷間加工
により２層以上にクラツドしてなる磁気ヘツドコ
ア用素材に関するものである。
パーマロイと呼ばれる鉄−ニツケル系合金は初
透磁率（μo）及び最大透磁率（μｍ）が高く、
保磁力が小さい特性を有しており、磁気テープレ
コーダ等の磁気ヘツド用材料として用いられてい
るが、パーマロイ自身は固有抵抗が低く460μ
Ω・cm程度）、高周波に使用した場合、うず電流
が発生しやすく、いわゆるうず電流損出が生ずる
という欠点を有している。そのため、パーマロイ
を磁気ヘツド用材料として使用するには、パーマ
ロイの薄板を幾層にも積層し、かつ層間を絶縁し
た積層構造とすることが多い。しかしながらこれ
らの薄板を幾層にも積層しかつ層間を絶縁する工
程には多くの労力と時間を要し、この工程を短縮
する材料ないし方法が強く要望されている。
本発明の目的はかかる要望に応えて積層磁気コ
ア材料として高い透磁率を示すとともに、積層構
造とする際に積層する薄板の枚数を減らしてもう
ず電流損出等の欠点が少ない磁気ヘツドコア用素
材を提供することである。
本発明の素材は、70〜90重量％のニツケル
（Ni）、10重量％以下のモリブデン（Mo）、タン
グステン（Ｗ）、クロム（Cr）、ニオブ（Nb）、
タンタル（Ta）、チタン（Ti）、銅（Cu）、コバ
ルト（Co）、ケイ素（Si）、マンガン（Mn）及び
アルミニウム（Al）から選ばれた少なくとも一
種の金属並びに残部が鉄からなる合金を二層以上
にクラツドして（合わせ板として）なる磁気ヘツ
ドコア用素材である。
本発明に用いる合金としては、例えばFe−Ni
−Mo、Fe−Ni−Nb、Fe−Ni−Cu−Mo等が好
ましく成分組成としては、Ni70〜90重量％、
Mo、Ｗ、Cr、Nb、Ta、Ti、Cu、Co、Si、Mn
及びAlから選ばれた少なくとも一種の金属は10
重量％以下好ましくは0.1〜７重量％であること
が好ましい。
Niは70％未満及び90％を超えると、透磁率が
小さくなり、保磁率が大きくなるので好ましくな
い。また、Mo、Ｗ、Cr、Nb、Ta、Ti、Cu、
Co、Si、Mn、Al等の金属は電気抵抗を上げ、透
磁率を改善する成分であり、特に、Nb、Taは耐
摩耗性を向上することができる。しかし、10％を
超えると飽和磁束密度が低下するため実用に供さ
なくなる。
本発明のエレメント・プレートは上記した合金
を熱間加工又は冷間加工により２層以上にクラツ
ドすることにより製造される。層構造は多層であ
ればあるほど磁気ヘツド用材料として優れた特性
を示すが、実用性から考えて２〜３層構造とする
のが有利である。加工は、例えば、熱間又は冷間
で二層以上に積層した合金を圧延することにより
厚さ0.1〜0.3mmの薄板とすることにより行なうこ
とができる。
かくして得られた本発明の薄板はそれ単独で又
は従来の薄板と組合わせて積層することにより磁
気ヘツドコア用材料として使用でき、従来のパー
マロイからなる磁気ヘツドコアに比較して、その
積層枚数を例えば６枚から４枚に減じても優れた
高周波特性を示す。
以上実施例、比較例を掲げて本発明をさらに詳
しく説明するが本発明はこれにより何ら制限を受
けるものではない。なお実施例において％は重量
％を意味する。
実施例 １〜３
Ni77％、Cu5％、Mo4％、Mn0.5％および残部
がFeからなる合金を熱間（1100℃）又は冷間
（常温雰囲気）でクラツドし、圧延して0.1mm厚の
板を得た。比較例として同じ合金をクラツドする
ことなく圧延して0.1mm厚の板を得た。得られた
板について、マツクスウエルブリツジを用いて
100kHzにおける初実効透磁率（μe）を測定した。
結果を第１表に示す。
The present invention relates to a material for a magnetic head core made of an iron-nickel alloy, and more particularly to a material for a magnetic head core made of an iron-nickel alloy clad in two or more layers by hot working or cold working. It is something. The iron-nickel alloy called permalloy has high initial magnetic permeability (μo) and maximum magnetic permeability (μm).
Permalloy has a characteristic of having a low coercive force and is used as a material for magnetic heads in magnetic tape recorders, etc. However, permalloy itself has a low specific resistance of 460 μm.
When used at high frequencies (approximately Ω cm), eddy currents are likely to occur, resulting in so-called eddy current loss. Therefore, in order to use permalloy as a material for a magnetic head, a laminated structure is often created in which a number of thin permalloy plates are laminated and the layers are insulated. However, the process of laminating these thin plates into many layers and insulating the layers requires a lot of labor and time, and there is a strong demand for materials or methods that can shorten this process. The object of the present invention is to meet such demands as a material for magnetic head cores that exhibits high magnetic permeability as a laminated magnetic core material, and that also reduces the number of laminated thin plates when forming a laminated structure and has fewer drawbacks such as eddy current loss. The goal is to provide the following. The material of the present invention includes 70 to 90% by weight of nickel (Ni), 10% by weight or less of molybdenum (Mo), tungsten (W), chromium (Cr), niobium (Nb),
An alloy consisting of at least one metal selected from tantalum (Ta), titanium (Ti), copper (Cu), cobalt (Co), silicon (Si), manganese (Mn) and aluminum (Al) and the balance being iron. This is a material for magnetic head cores made of two or more layers clad (as a laminated plate). Examples of alloys used in the present invention include Fe-Ni
-Mo, Fe-Ni-Nb, Fe-Ni-Cu-Mo, etc. are preferred as component compositions: Ni 70 to 90% by weight,
Mo, W, Cr, Nb, Ta, Ti, Cu, Co, Si, Mn
and at least one metal selected from Al is 10
It is preferably 0.1 to 7% by weight or less. If Ni is less than 70% or more than 90%, the magnetic permeability decreases and the coercivity increases, which is not preferable. Also, Mo, W, Cr, Nb, Ta, Ti, Cu,
Metals such as Co, Si, Mn, and Al are components that increase electrical resistance and improve magnetic permeability, and in particular, Nb and Ta can improve wear resistance. However, if it exceeds 10%, the saturation magnetic flux density decreases, making it impractical. The element plate of the present invention is manufactured by cladding the above-mentioned alloy into two or more layers by hot working or cold working. The more layers the material has, the better the characteristics it exhibits as a material for a magnetic head, but from the viewpoint of practicality, it is advantageous to have a two to three layer structure. The processing can be carried out, for example, by hot or cold rolling an alloy laminated in two or more layers to form a thin plate having a thickness of 0.1 to 0.3 mm. The thus obtained thin plate of the present invention can be used as a material for a magnetic head core by laminating it alone or in combination with a conventional thin plate.Compared to a conventional magnetic head core made of permalloy, the number of laminated sheets is, for example, 6. Excellent high frequency characteristics are exhibited even when the number of sheets is reduced from one to four. The present invention will be described in more detail with reference to Examples and Comparative Examples, but the present invention is not limited thereto in any way. Note that in the examples, % means weight %. Examples 1 to 3 An alloy consisting of 77% Ni, 5% Cu, 4% Mo, 0.5% Mn, and the balance Fe is clad in hot (1100°C) or cold (room temperature atmosphere) and rolled into a 0.1 mm thick material. Got the board. As a comparative example, a 0.1 mm thick plate was obtained by rolling the same alloy without cladding. The obtained board was tested using a Maxwell bridge.
The initial effective permeability (μe) at 100kHz was measured. The results are shown in Table 1.
【表】
実施例 ４〜６
合金としてNi80％、Mo5％および残部がFeか
らなるものを用いた他は、実施例１〜３と同様に
して0.2mm厚の板を得た。比較例として、同じ厚
さの単層の板を得た。かくして得られた薄板の初
実効透磁率（μe）を実施例１〜３と同様にして
測定した。
結果を第２表に示した。[Table] Examples 4 to 6 Plates with a thickness of 0.2 mm were obtained in the same manner as in Examples 1 to 3, except that an alloy consisting of 80% Ni, 5% Mo, and the balance Fe was used. As a comparative example, a single layer plate of the same thickness was obtained. The initial effective magnetic permeability (μe) of the thus obtained thin plate was measured in the same manner as in Examples 1-3. The results are shown in Table 2.
【表】
実施例 ７〜９
合金として、Ni80％、Nb7％及び残部Feから
なるものを用いた他は実施例１〜３と同様にして
0.1mm厚の板を製造した。比較例として、同じ合
金とクラツドすることなく同じ厚さに圧延したも
のを製造した。初実効透磁率（μe）を実施例１
〜３と同様にして測定した。
結果を第３表に示した。[Table] Examples 7 to 9 The same procedure as Examples 1 to 3 was used except that an alloy consisting of 80% Ni, 7% Nb, and the balance Fe was used.
A plate with a thickness of 0.1 mm was manufactured. As a comparative example, one was produced that was rolled to the same thickness without being clad with the same alloy. Example 1 Initial effective permeability (μe)
Measurements were made in the same manner as in 3. The results are shown in Table 3.
【表】
実施例 10〜12
合金として、Ni80％、W4％、Cr3％及び残部
Feからなるものを用いた他は実施例１〜３と同
様にして0.1mm厚の板を製造した。比較例として、
同じ合金をクラツドすることなく同じ厚さに圧延
したものを製造した。初実効透磁率（μe）を実施
例１〜３と同様にして測定した。
結果を第４表に示した。[Table] Examples 10 to 12 Alloy: 80% Ni, 4% W, 3% Cr, and the balance
A plate having a thickness of 0.1 mm was manufactured in the same manner as in Examples 1 to 3, except that a plate made of Fe was used. As a comparative example,
The same alloy was rolled to the same thickness without cladding. The initial effective permeability (μ e ) was measured in the same manner as in Examples 1-3. The results are shown in Table 4.
【表】
実施例 13〜15
合金として、Ni80％、Ta4％、Ti1％及び残部
Feからなるものを用いた他は実施例１〜３と同
様にして0.1mm厚の板を製造した。比較例として、
同じ合金をクラツドすることなく同じ厚さに圧延
したものを製造した。初実効透磁率（μe）を実施
例１〜３と同様にして測定した。
結果を第５表に示した。[Table] Examples 13 to 15 Alloy: 80% Ni, 4% Ta, 1% Ti, and the balance
A plate having a thickness of 0.1 mm was manufactured in the same manner as in Examples 1 to 3, except that a plate made of Fe was used. As a comparative example,
The same alloy was rolled to the same thickness without cladding. The initial effective permeability (μ e ) was measured in the same manner as in Examples 1-3. The results are shown in Table 5.
【表】
実施例 16〜18
合金として、Ni80％、Cu5％、Co1％及び残部
Feからなるものを用いた他は実施例１〜３と同
様にして0.1mm厚の板を製造した。比較例として、
同じ合金をクラツドすることなく同じ厚さに圧延
したものを製造した。初実効透磁率（μe）を実施
例１〜３と同様にして測定した。
結果を第６表に示した。[Table] Examples 16 to 18 Alloys: 80% Ni, 5% Cu, 1% Co, and the balance
A plate having a thickness of 0.1 mm was manufactured in the same manner as in Examples 1 to 3, except that a plate made of Fe was used. As a comparative example,
The same alloy was rolled to the same thickness without cladding. The initial effective permeability (μ e ) was measured in the same manner as in Examples 1-3. The results are shown in Table 6.
【表】
実施例 19〜21
合金として、Ni80％、Si2％、Al2％及び残部
Feからなるものを用いた他は実施例１〜３と同
様にして0.1mm厚の板を製造した。比較例として、
同じ合金をクラツドすることなく同じ厚さに圧延
したものを製造した。初実効透磁率（μe）を実施
例１〜３と同様にして測定した。
結果を第７表に示した。[Table] Examples 19 to 21 Alloy: 80% Ni, 2% Si, 2% Al, and the balance
A plate having a thickness of 0.1 mm was manufactured in the same manner as in Examples 1 to 3, except that a plate made of Fe was used. As a comparative example,
The same alloy was rolled to the same thickness without cladding. The initial effective permeability (μ e ) was measured in the same manner as in Examples 1-3. The results are shown in Table 7.
Claims (1)
リブデン、タングステン、クロム、ニオブ、タン
タル、チタン、銅、コバルト、ケイ素、マンガン
及びアルミニウムから選ばれた少なくとも一種の
金属並びに残部が鉄からなる合金材を二層以上に
クラツドしてなる磁気ヘツドコア用素材。1 An alloy consisting of 70 to 90% by weight of nickel, 10% by weight or less of molybdenum, tungsten, chromium, niobium, tantalum, titanium, copper, cobalt, silicon, manganese and aluminum, and the balance consisting of iron. A material for magnetic head cores made of two or more layers of cladding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8806979A JPS5612705A (en) | 1979-07-13 | 1979-07-13 | Raw material for magnetic head core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8806979A JPS5612705A (en) | 1979-07-13 | 1979-07-13 | Raw material for magnetic head core |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5612705A JPS5612705A (en) | 1981-02-07 |
| JPS6331087B2 true JPS6331087B2 (en) | 1988-06-22 |
Family
ID=13932554
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8806979A Granted JPS5612705A (en) | 1979-07-13 | 1979-07-13 | Raw material for magnetic head core |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5612705A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0434279U (en) * | 1990-07-18 | 1992-03-23 |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2560711B1 (en) * | 1984-03-02 | 1987-03-20 | Metalimphy | COMPOSITE MAGNETIC CIRCUIT AND METHOD FOR MANUFACTURING SAID CIRCUIT |
| JP2502633B2 (en) * | 1987-11-16 | 1996-05-29 | 日産自動車株式会社 | Vehicle drive force control device |
| DE4423622A1 (en) * | 1994-07-06 | 1996-01-11 | Vacuumschmelze Gmbh | Total current transformer for electronic protective devices |
| US6744342B2 (en) | 2000-07-27 | 2004-06-01 | Decristofaro Nicholas J. | High performance bulk metal magnetic component |
-
1979
- 1979-07-13 JP JP8806979A patent/JPS5612705A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0434279U (en) * | 1990-07-18 | 1992-03-23 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5612705A (en) | 1981-02-07 |
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