JPS63235448A - Composite magnetic wire rod - Google Patents
Composite magnetic wire rodInfo
- Publication number
- JPS63235448A JPS63235448A JP6585087A JP6585087A JPS63235448A JP S63235448 A JPS63235448 A JP S63235448A JP 6585087 A JP6585087 A JP 6585087A JP 6585087 A JP6585087 A JP 6585087A JP S63235448 A JPS63235448 A JP S63235448A
- Authority
- JP
- Japan
- Prior art keywords
- composite magnetic
- magnetic wire
- wire
- alloy
- thermal
- 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.)
- Granted
Links
- 239000002131 composite material Substances 0.000 title claims description 25
- 239000000463 material Substances 0.000 claims abstract description 33
- 238000007751 thermal spraying Methods 0.000 claims abstract description 13
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 12
- 239000000956 alloy Substances 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims abstract description 10
- 238000010438 heat treatment Methods 0.000 claims abstract description 9
- 238000005482 strain hardening Methods 0.000 claims abstract description 8
- 229910020516 Co—V Inorganic materials 0.000 claims abstract description 5
- 229910052751 metal Inorganic materials 0.000 claims abstract description 4
- 239000002184 metal Substances 0.000 claims abstract description 4
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 239000007921 spray Substances 0.000 claims 1
- 230000005415 magnetization Effects 0.000 abstract description 11
- 230000004907 flux Effects 0.000 abstract description 7
- 230000008569 process Effects 0.000 abstract description 5
- 229910001030 Iron–nickel alloy Inorganic materials 0.000 abstract 1
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 150000002739 metals Chemical class 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 239000011162 core material Substances 0.000 description 6
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- 238000001514 detection method Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- 229910052786 argon Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005381 magnetic domain Effects 0.000 description 2
- 238000007750 plasma spraying Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 206010010071 Coma Diseases 0.000 description 1
- 229910017112 Fe—C Inorganic materials 0.000 description 1
- 229910000756 V alloy Inorganic materials 0.000 description 1
- 230000005347 demagnetization Effects 0.000 description 1
- 238000010283 detonation spraying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010285 flame spraying Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 230000006911 nucleation Effects 0.000 description 1
- 238000010899 nucleation Methods 0.000 description 1
- FPVKHBSQESCIEP-JQCXWYLXSA-N pentostatin Chemical compound C1[C@H](O)[C@@H](CO)O[C@H]1N1C(N=CNC[C@H]2O)=C2N=C1 FPVKHBSQESCIEP-JQCXWYLXSA-N 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Landscapes
- Coating By Spraying Or Casting (AREA)
Abstract
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は複合磁性線材に関するものである。[Detailed description of the invention] [Industrial application field] The present invention relates to a composite magnetic wire.
近年、自動車、精密機器、計測等の分野において１回転
数等の検出センサＴとして、非接触型で機械的な接点を
持たない信頼性のすぐれたセンサ−の必要性が高まって
おり１種々の対策が検討されている。このようなセンサ
ーに利用できる材料の特性としては、材料内部に単磁区
に近い磁壁をもち、この磁壁の移動エネルギーが反転磁
化の核形成エネルギ」よりも小さいことが望ましい。す
なわち、ある方向に磁化された磁性線に反対の外部磁界
が与えられると、ある磁場のところで磁壁が移動する。In recent years, in the fields of automobiles, precision instruments, measurement, etc., there has been an increasing need for highly reliable sensors that are non-contact and do not have mechanical contacts to detect the number of rotations, etc. Countermeasures are being considered. As for the characteristics of a material that can be used in such a sensor, it is desirable that the material has a domain wall that is close to a single magnetic domain inside the material, and that the movement energy of this domain wall is smaller than the nucleation energy of reversed magnetization. That is, when an opposite external magnetic field is applied to a magnetic line magnetized in a certain direction, the domain wall moves at a certain magnetic field.
これを検出コイルで読みとれば一定の出力信号として取
シ出すことが出来る。このような材料でつくられたセン
サーは、印加磁界の変化速度に関係なく磁束が印加磁界
の微少変化に対し、一定の出力信号を取シ出すことがで
きる。If this is read by a detection coil, it can be extracted as a constant output signal. A sensor made of such a material is capable of producing a constant output signal in response to minute changes in magnetic flux, regardless of the rate of change in the applied magnetic field.
従来、この種の特性を有するものとして、ヴイーガント
ヤイヤーがある（例えば、特開昭４７−８９５６号公報
）。これは全体として組成上は均質な合金であるが、製
造の最後の工程での特殊な熱処理によって磁気的に硬い
（保磁力が大きい）殻部と磁気的に歌い（保磁力が小さ
い）コア部とが共存するようにした複雑な工程を有する
ものである。このため、この最終熱処理を行うためには
複雑な装置を必要とする欠点がある。Conventionally, there is a Vegantoyer as a material having this type of characteristic (for example, Japanese Patent Application Laid-Open No. 47-8956). This alloy is compositionally homogeneous as a whole, but due to special heat treatment in the final manufacturing process, it has a magnetically hard shell (high coercive force) and a magnetically singed core (low coercive force). It has a complicated process that allows both to coexist. Therefore, there is a drawback that a complicated device is required to perform this final heat treatment.
そこで１本発明の目的は、磁化曲線の一部に磁束が急峻
に不連続に変化する部分を有する磁性線材を、安定かつ
安価に提供することである。Therefore, one object of the present invention is to stably and inexpensively provide a magnetic wire having a part of its magnetization curve where the magnetic flux changes sharply and discontinuously.
本発明によれば、冷間加工状態で保磁力が１．Ｏｅ以上
の被溶射線材である金属又は合金線の表面に。According to the present invention, the coercive force in the cold worked state is 1. For the surface of metal or alloy wires that are thermally sprayed wires of Oe or higher.
冷間加工状態で保磁力が１０ 、 Ｏｅ以上であるＦｅ
−Ｃｏ−Ｖ系合金で、しかも、前記被溶射線材と保磁
力が異なる溶射材料を溶射によシ設けてなシ、シかも、
熱処理、冷間加工および直線化矯正を施したことを特徴
とする複合磁性線が得られる。Fe with a coercive force of 10 Oe or more in a cold worked state
- A thermal spraying material made of Co-V alloy and having a coercive force different from that of the wire to be thermally sprayed may be used for thermal spraying.
A composite magnetic wire characterized by being subjected to heat treatment, cold working and straightening is obtained.
一般に、溶射とは物質を熱源によって加熱して溶融状態
にし、これを被加工物の表面に吹きつけ。In general, thermal spraying involves heating a substance using a heat source to melt it, and then spraying it onto the surface of the workpiece.
目的とする機能をもった皮膜を作製するプロセスである
。This is a process to create a film with the desired function.
従って、磁性線の表面に異なった保磁力をもっ溶射材料
を、溶射により設けることによシ、磁気的に異なる保磁
力をもつ線材が同軸上に形成される。これ自体でもある
程度の急峻な不連続磁化特性を有する。Therefore, by spraying materials having different coercive forces on the surface of the magnetic wire, wires having magnetically different coercive forces can be formed coaxially. This itself has a certain degree of steep discontinuous magnetization characteristics.
ところが、これだけでは不十分で著しい改善は認められ
ない。However, this alone is insufficient and no significant improvement has been observed.
そこで、さらに溶射された複合磁性線に熱処理を施し、
さらに冷間加工、直線化矯正を施すことによシ、よシ一
層急峻な不連続磁化特性効果を増大させることができる
。Therefore, we further heat-treated the sprayed composite magnetic wire,
Furthermore, by performing cold working and straightening, it is possible to further increase the effect of the sharp discontinuous magnetization characteristic.
ここで被溶射線材及び溶射材料としては、それぞれ、冷
間圧延のままの状態で保磁力１．００ｅ及び１００ｅの
ものが必要である。ここで、保持力１．０ｅ以上とした
のはこの範囲の保磁力のものが最も急峻な不連続磁化特
性を示すことと、実用時の材料の寸法比による反磁界に
よシ、減磁を受けるが、保持力は減磁による磁化力の２
倍以上の値を必要とする。また溶射する金属または合金
は保磁力１０ 、Ｏｅ以上のＦｅ −Ｃ□ −Ｖ系合金
、具体的に示すならばＣｏ ： ４９ ｗｔ％＊ Ｖ
： ２〜１５ ｗｔ％、残りＦｅが望ましい。また被溶
射線材と溶射材料の保磁力が等しい場合は不連続磁化特
性が得られないので２両者の保磁力は異なっている必要
がある。Here, the wire rod to be thermally sprayed and the thermal spraying material must have coercive forces of 1.00e and 100e, respectively, in the cold-rolled state. Here, the coercive force is set to 1.0e or more because a coercive force in this range exhibits the steepest discontinuous magnetization characteristic, and also because it is difficult to demagnetize due to the demagnetizing field due to the dimensional ratio of the material in practical use. However, the holding force is 2 times the magnetizing force due to demagnetization.
Requires more than double the value. The metal or alloy to be thermally sprayed is a Fe-C□-V alloy with a coercive force of 10 or more, specifically Co: 49 wt%*V
: 2 to 15 wt%, with the remainder being Fe. Furthermore, if the coercive forces of the thermally sprayed wire and the thermally sprayed material are equal, discontinuous magnetization characteristics cannot be obtained, so the coercive forces of the two must be different.
本発明の実施例を図面を参照して説明する。 Embodiments of the present invention will be described with reference to the drawings.
第１図に示す通シ、 Ｆｅ−Ｃｏ −Ｖ合金線又はＦｅ
−Ｎｉ線１（線径；φ３．０■）の芯材である被溶射
材に表１に示した条件で２表２に示した材料からなる皮
材である溶射材２を厚さ１箇溶射した。Through wire shown in Figure 1, Fe-Co-V alloy wire or Fe
-Thermal spraying material 2, which is a skin material made of the material shown in Table 2, is applied to the core material of Ni wire 1 (wire diameter: φ3.0■) under the conditions shown in Table 1 to a thickness of 1 piece. Sprayed.
表−１
ここで用いた溶射方法は、粉末式アルゴンプラズマ溶射
とした。Table 1 The thermal spraying method used here was powder argon plasma spraying.
この他にフレーム溶射、アーク式溶射、デトネーション
溶射などの方法でも同様の結果が得られたが、溶射複合
線材を簡単に作製、供給できる手段として、粉末式アル
ゴンプラズマ溶射を選んだ。Similar results were obtained using other methods such as flame spraying, arc spraying, and detonation spraying, but we chose powder argon plasma spraying as a means of easily producing and supplying the sprayed composite wire.
このようにして得られた複合磁性線を８３０℃で３０分
の熱処理後、冷間線引によシφ０．６ ｍで。The thus obtained composite magnetic wire was heat treated at 830°C for 30 minutes and then cold drawn to a diameter of 0.6 m.
径φ３００＋ａのフープ状の線材を得た。A hoop-shaped wire rod with a diameter of φ300+a was obtained.
これを、コマ式直線矯正機にかけ、直線状の形状を得た
。この線材の磁化曲線を測定した結果。This was applied to a coma-type straightening machine to obtain a straight shape. The results of measuring the magnetization curve of this wire.
第２図に示す如き特性を得た。第２図から明らかなよう
に、得られた複合磁性線は、何らの熱処理を冷間加工、
直線化矯正後に施すことなく磁界６００ｅ付近で、約３
０００ガウスにおよぶ磁束密度の急峻な磁化の不連続部
分を得ることができた。The characteristics shown in FIG. 2 were obtained. As is clear from Fig. 2, the obtained composite magnetic wire was not subjected to any heat treatment or cold working.
Approximately 3 in the vicinity of magnetic field 600e without applying after straightening straightening.
We were able to obtain a discontinuous portion of steep magnetization with a magnetic flux density of up to 1,000 Gauss.
次に第３図に示すように、交流源６に接続した磁界印加
用コイルとシンクロスコープ７へ接続すれた検出コイル
１３の中へ試料７を配置して、試料７へ交流磁界を印加
したときの検出コイル４の出力をシンクロスコー７０７
で観察するようにした測定回路を用いて、上述の直線化
矯正されたままの複合磁性線について＋５０Ｈｚの交流
磁場印加時の応答特性を測定した。Next, as shown in FIG. 3, when the sample 7 is placed inside the magnetic field applying coil connected to the AC source 6 and the detection coil 13 connected to the synchroscope 7, and an AC magnetic field is applied to the sample 7. The output of the detection coil 4 is synchronized with the scour 707.
Using a measurement circuit designed for observation, the response characteristics of the above-described linearized and straightened composite magnetic wire when an alternating current magnetic field of +50 Hz was applied were measured.
第４図にシンクロスコープで観察された出力波形を示す
。印加磁界が５０ Ｈｚいずれの場合でも。Figure 4 shows the output waveform observed with a synchroscope. Regardless of whether the applied magnetic field is 50 Hz.
図示のように鋭い尖頭値をもった同様の出力波形を示し
た。As shown in the figure, a similar output waveform with a sharp peak value was shown.
このときのピーク電圧（至）を実施例について測定した
結果を表２に示しである。Table 2 shows the results of measuring the peak voltage at this time for the examples.
以下余日
以上２本発明を実施例をもって説明したが、磁化曲線の
一部に磁束が不連続に急峻して変化する部分を有し、か
つ、この部分が印加磁界の微小な変化に対して、大きな
磁束の変化が得られるのは。In the following, the present invention has been explained with reference to two examples for the remaining days. However, there is a part of the magnetization curve where the magnetic flux discontinuously and steeply changes, and this part does not respond to minute changes in the applied magnetic field. , a large change in magnetic flux can be obtained.
芯材と皮材の境界近傍において、磁性材の磁気異方性及
び磁歪と、芯材、皮材の保磁力の違いによる相互の磁気
的な影響とによって、単磁区構造をもつために特定の磁
場における磁界の変化に対して、芯材と皮材の境界近傍
の磁束が急峻な変化を起こすためであろうと考察される
。Near the boundary between the core material and the skin material, due to the magnetic anisotropy and magnetostriction of the magnetic material and the mutual magnetic influence due to the difference in coercive force between the core material and the skin material, a specific magnetic field is formed due to the single magnetic domain structure. It is considered that this is because the magnetic flux near the boundary between the core material and the skin material undergoes a steep change in response to changes in the magnetic field.
本発明によれば、このような急峻な不連続磁化特性をも
つ材料が、保磁力の異なった材料を溶射にて同軸状に一
体複合して、熱処理及び冷間加工を施した後、直線化矯
正を行うのみで、何ら特殊な熱処理もせずに安定して得
られるから、グイ−ガントワイヤーの工程に比べて、工
程が格段忙簡略化され、また複雑な製造装置を使用する
必要がない。よって２本発明の工ｌ業的な価値は極めて
大である。According to the present invention, a material with such steep discontinuous magnetization characteristics can be made by coaxially combining materials with different coercive forces by thermal spraying, heat treating and cold working, and then straightening the material. Since it can be stably obtained by just straightening and without any special heat treatment, the process is much simpler than the Gougant wire process, and there is no need to use complicated manufacturing equipment. Therefore, the industrial value of the present invention is extremely large.
【図面の簡単な説明】
第１図は２本発明の一実施例による複合磁性線の断面図
、第２図は、同実施例による複合磁性線の磁気ヒステリ
シス特性を示す図、第３図は複合磁性線の交流・磁界印
加時の出力波形を観測するために用いた測定回路、第４
図は複合磁性線に５０Ｈｚの交流磁界を印加したときの
出力波形図である。
１・・・芯材（中心合金層）、２・・・皮材（外殻合金
層）、３・・・複合磁性線、４・・・検出コイル、５・
・・印加用−１ル、６・・・交流源、７・・・シンクロ
スコープ第１図
１２ｒＩＡ
第３図
第４図[Brief Description of the Drawings] Fig. 1 is a cross-sectional view of a composite magnetic wire according to an embodiment of the present invention, Fig. 2 is a diagram showing the magnetic hysteresis characteristics of the composite magnetic wire according to the embodiment, and Fig. 3 is a diagram showing the magnetic hysteresis characteristics of the composite magnetic wire according to the embodiment. Measurement circuit used to observe the output waveform of a composite magnetic wire when an alternating current/magnetic field is applied, No. 4
The figure is an output waveform diagram when a 50 Hz alternating current magnetic field is applied to the composite magnetic wire. DESCRIPTION OF SYMBOLS 1... Core material (center alloy layer), 2... Skin material (outer shell alloy layer), 3... Composite magnetic wire, 4... Detection coil, 5...
...For application -1, 6...AC source, 7...Synchroscope Figure 1 12rIA Figure 3 Figure 4
Claims (1)
ることを特徴とする複合磁性線材。 ２、特許請求の範囲第１項記載の複合磁性線材において
、前記溶射材料は、前記被溶射材料と保磁力が異なるこ
とを特徴とする複合磁性線材。 ３、特許請求の範囲第１項又は第２項記載の複合磁性線
材において、前記被溶射材料は金属を含むことを特徴と
する複合磁性線材。 ４、特許請求の範囲第１項〜第３項記載のいずれかの複
合磁性線材において、前記被溶射材料は、冷間加工状態
で保磁力が１．００＿ｅ以上であることを特徴とする複
合磁性線材。 ５、特許請求の範囲第４項記載の複合磁性線材において
、前記溶射材料は、冷間加工状態で保磁力が１００＿ｅ
上であるＦｅ−Ｃｏ−Ｖ系合金であることを特徴とする
複合磁性線材。 ６、特許請求の範囲第４項又は５項記載の複合磁性線材
において、前記溶射材料は、重量比でＣｏ；４９％、Ｖ
；２〜１５％、残りＦｅであることを特徴とする複合磁
性線材。 ７、特許請求の範囲第５項記載の複合磁性線材において
、溶射後熱処理及び冷間加工を施すことを特徴とする複
合磁性線材の製造方法。 ８、特許請求の範囲第６項記載の複合磁性線材において
、直線化矯正を施すことを特徴とする複合磁性線材の製
造方法。[Scope of Claims] 1. A composite magnetic wire characterized by having a thermally sprayed wire material and a thermally sprayed material on the surface thereof. 2. The composite magnetic wire according to claim 1, wherein the thermally sprayed material has a different coercive force from the thermally sprayed material. 3. A composite magnetic wire according to claim 1 or 2, wherein the material to be thermally sprayed contains a metal. 4. The composite magnetic wire according to any one of claims 1 to 3, wherein the material to be thermally sprayed has a coercive force of 1.00_e or more in a cold worked state. wire. 5. In the composite magnetic wire according to claim 4, the thermal sprayed material has a coercive force of 100_e in a cold worked state.
A composite magnetic wire characterized by being made of the above Fe-Co-V alloy. 6. In the composite magnetic wire according to claim 4 or 5, the thermal spray material has a weight ratio of Co; 49%, V.
; 2 to 15%, the remainder being Fe. 7. A method for manufacturing a composite magnetic wire according to claim 5, which comprises subjecting the composite magnetic wire to heat treatment and cold working after thermal spraying. 8. A method for manufacturing a composite magnetic wire according to claim 6, which comprises performing straightening correction on the composite magnetic wire according to claim 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62065850A JP2640462B2 (en) | 1987-03-23 | 1987-03-23 | Composite magnetic wire and method of manufacturing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62065850A JP2640462B2 (en) | 1987-03-23 | 1987-03-23 | Composite magnetic wire and method of manufacturing the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63235448A true JPS63235448A (en) | 1988-09-30 |
| JP2640462B2 JP2640462B2 (en) | 1997-08-13 |
Family
ID=13298899
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62065850A Expired - Fee Related JP2640462B2 (en) | 1987-03-23 | 1987-03-23 | Composite magnetic wire and method of manufacturing the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2640462B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6442562A (en) * | 1987-08-07 | 1989-02-14 | Tokin Corp | Composite magnetic wire and production thereof |
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| JPS58117858A (en) * | 1981-12-07 | 1983-07-13 | Hitachi Metals Ltd | Semihard magnetic alloy |
| JPS6187860A (en) * | 1984-10-05 | 1986-05-06 | Toshiba Corp | Production of composite material |
| JPS626129A (en) * | 1985-07-02 | 1987-01-13 | Aisin Seiki Co Ltd | Torque detector |
| JPS6244555A (en) * | 1985-08-19 | 1987-02-26 | Hitachi Metals Ltd | Magnetic fe-co alloy |
-
1987
- 1987-03-23 JP JP62065850A patent/JP2640462B2/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5515797A (en) * | 1978-07-06 | 1980-02-04 | Akzo Nv | Peanut treating method |
| JPS58117858A (en) * | 1981-12-07 | 1983-07-13 | Hitachi Metals Ltd | Semihard magnetic alloy |
| JPS6187860A (en) * | 1984-10-05 | 1986-05-06 | Toshiba Corp | Production of composite material |
| JPS626129A (en) * | 1985-07-02 | 1987-01-13 | Aisin Seiki Co Ltd | Torque detector |
| JPS6244555A (en) * | 1985-08-19 | 1987-02-26 | Hitachi Metals Ltd | Magnetic fe-co alloy |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6442562A (en) * | 1987-08-07 | 1989-02-14 | Tokin Corp | Composite magnetic wire and production thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2640462B2 (en) | 1997-08-13 |
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