JPH10212554A - Wear resistant high saturated magnetic flux density high permeability alloy - Google Patents
Wear resistant high saturated magnetic flux density high permeability alloyInfo
- Publication number
- JPH10212554A JPH10212554A JP2962497A JP2962497A JPH10212554A JP H10212554 A JPH10212554 A JP H10212554A JP 2962497 A JP2962497 A JP 2962497A JP 2962497 A JP2962497 A JP 2962497A JP H10212554 A JPH10212554 A JP H10212554A
- Authority
- JP
- Japan
- Prior art keywords
- flux density
- magnetic flux
- content
- less
- magnetic permeability
- 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.)
- Pending
Links
- 230000035699 permeability Effects 0.000 title claims abstract description 45
- 230000004907 flux Effects 0.000 title claims abstract description 33
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 32
- 239000000956 alloy Substances 0.000 title claims abstract description 32
- 229920006395 saturated elastomer Polymers 0.000 title abstract description 3
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 6
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical group [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 10
- 229910052726 zirconium Inorganic materials 0.000 claims description 10
- 229910052748 manganese Inorganic materials 0.000 claims description 7
- 229910052759 nickel Inorganic materials 0.000 claims description 5
- 238000005260 corrosion Methods 0.000 abstract description 19
- 230000007797 corrosion Effects 0.000 abstract description 19
- 239000011347 resin Substances 0.000 abstract description 11
- 229920005989 resin Polymers 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 6
- 230000001105 regulatory effect Effects 0.000 abstract 4
- 238000000465 moulding Methods 0.000 description 12
- 229910052758 niobium Inorganic materials 0.000 description 9
- 238000005299 abrasion Methods 0.000 description 5
- 238000002791 soaking Methods 0.000 description 3
- 229910008458 Si—Cr Inorganic materials 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 229910000702 sendust Inorganic materials 0.000 description 2
- 229910020630 Co Ni Inorganic materials 0.000 description 1
- 229910002440 Co–Ni Inorganic materials 0.000 description 1
- 229910017082 Fe-Si Inorganic materials 0.000 description 1
- 229910017133 Fe—Si Inorganic materials 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 229910001004 magnetic alloy Inorganic materials 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、２７５０ Ｏｅ以
上の抗磁力を有する磁気記録媒体の記録・再生が可能な
高飽和磁束密度と高透磁率を有し、且つ耐摩耗性に優れ
るＦｅ−Ｓｉ−Ｃｒ−Ｔｉ−Ｂ系、Ｆｅ−Ｓｉ−Ｃｒ−
Ｔｉ−Ｂ−Ａｌ系、Ｆｅ−Ｓｉ−Ｃｒ−Ｔｉ−Ｂ−Ｃｏ
系、Ｆｅ−Ｓｉ−Ｃｒ−Ｔｉ−Ｂ−Ａｌ−Ｃｏ−Ｎｉ系
合金などに関する。BACKGROUND OF THE INVENTION The present invention relates to Fe--Si having high saturation magnetic flux density and high magnetic permeability capable of recording / reproducing a magnetic recording medium having a coercive force of 2750 Oe or more and having excellent wear resistance. -Cr-Ti-B system, Fe-Si-Cr-
Ti-B-Al system, Fe-Si-Cr-Ti-B-Co
And Fe-Si-Cr-Ti-B-Al-Co-Ni alloys.
【０００２】[0002]
【従来の技術】高飽和磁束密度が要求される産業用磁気
記録装置の磁気ヘッドのコアには、Ｆｅ−９．６wt％Ｓ
ｉ−５．４wt％Ａｌのセンダスト合金、前記センダスト
合金のＳｉとＡｌ量を減らし、Ｃｒと白金族元素を加え
て耐食性や耐摩耗性の低下を抑えた合金、Ｆｅ−Ａｌ−
Ｓｉ−Ｃｒ系合金などが使用されていた。2. Description of the Related Art The core of a magnetic head of an industrial magnetic recording apparatus requiring a high saturation magnetic flux density is made of Fe-9.6 wt% S.
i-5.4 wt% Al sendust alloy, an alloy in which the amount of Si and Al in the above-mentioned sendust alloy is reduced, and a decrease in corrosion resistance and wear resistance is suppressed by adding Cr and a platinum group element, Fe-Al-
Si-Cr alloys and the like have been used.
【０００３】[0003]
【発明が解決しようとする課題】しかし、これら合金は
飽和磁束密度および透磁率は良好であるが、硬度が十分
高くないため耐摩耗性に劣り、駅の自動改札機用磁気ヘ
ッドなどに用いると磨耗が激しく１箇月程度で交換する
必要があった。このようなことから、本発明者等は飽和
磁束密度や透磁率などの磁気特性が良好で、耐食性も有
し、且つ耐摩耗性にも優れる合金について研究を行い、
Ｆｅ−Ａｌ−Ｓｉ−Ｃｒ系合金にＢおよびＴｉを添加す
ると、飽和磁束密度や透磁率などの磁性特性を低下させ
ずに、耐摩耗性を改善できることを知見し、さらに研究
を進めて本発明を完成させるに至った。本発明の目的
は、印加磁場１ＫＯｅにおける磁束密度Ｂ1Kが１４００
０Ｇ以上あり、抗磁力が２７５０ Ｏｅの記録媒体の記
録・再生が可能で、所要の耐食性を有し、かつ耐摩耗性
に優れる合金を提供することにある。However, although these alloys have good saturation magnetic flux density and magnetic permeability, they are not sufficiently high in hardness, so that they are inferior in wear resistance. The wear was so severe that it needed to be replaced in about one month. From such a fact, the present inventors have studied alloys having good magnetic properties such as saturation magnetic flux density and magnetic permeability, also having corrosion resistance, and also having excellent wear resistance.
The present inventors have found that the addition of B and Ti to an Fe-Al-Si-Cr-based alloy can improve wear resistance without deteriorating magnetic properties such as saturation magnetic flux density and magnetic permeability. Was completed. It is an object of the present invention that the magnetic flux density B 1K at an applied magnetic field of 1 KOe is 1400
An object of the present invention is to provide an alloy which is capable of recording and reproducing information on a recording medium having 0 G or more and having a coercive force of 2750 Oe, has a required corrosion resistance, and has excellent wear resistance.
【０００４】[0004]
【課題を解決するための手段】請求項１記載の発明は、
Ｓｉが６〜９wt％、Ｃｒが０．５〜６wt％、Ｔｉが０．
１〜３．５wt％、Ｂが０．００１〜１wt％含有され、残
部がＦｅからなることを特徴とする耐摩耗性高飽和磁束
密度高透磁率合金である。According to the first aspect of the present invention,
Si is 6 to 9 wt%, Cr is 0.5 to 6 wt%, and Ti is 0.1 to 0.2 wt%.
An abrasion-resistant high saturation magnetic flux density and high magnetic permeability alloy containing 1 to 3.5 wt% and 0.001 to 1 wt% of B, with the balance being Fe.
【０００５】請求項２記載の発明は、Ｓｉが６〜９wt
％、Ｃｒが０．５〜６wt％、Ｔｉが０．１〜３．５wt
％、Ｂが０．００１〜１wt％含有され、Ａｌ、Ｃｏ、Ｎ
ｉのうちの少なくとも１種が総計で１３wt％以下含有さ
れ、残部がＦｅからなることを特徴とする耐摩耗性高飽
和磁束密度高透磁率合金である。According to a second aspect of the present invention, the Si content is 6 to 9 wt.
%, Cr is 0.5 to 6 wt%, Ti is 0.1 to 3.5 wt%
%, B is contained in an amount of 0.001 to 1 wt%, and Al, Co, N
A wear-resistant high saturation magnetic flux density high magnetic permeability alloy characterized in that at least one of i is contained in a total of 13 wt% or less and the balance is Fe.
【０００６】請求項３記載の発明は、請求項１、２のい
ずれかに記載の耐摩耗性高飽和磁束密度高透磁率合金
に、さらに白金族元素が２．０wt％以下含有されている
ことを特徴とする耐摩耗性高飽和磁束密度高透磁率合金
である。According to a third aspect of the present invention, the wear-resistant high saturation magnetic flux density and high magnetic permeability alloy according to any one of the first and second aspects further comprises a platinum group element in an amount of 2.0 wt% or less. It is an abrasion resistant high saturation magnetic flux density high magnetic permeability alloy characterized by the following.
【０００７】請求項４記載の発明は、請求項１、２、３
のいずれかに記載の耐摩耗性高飽和磁束密度高透磁率合
金に、さらにＺｒ、ＮｂまたはＭｎのうちの少なくとも
１種が総量で３．５wt％以下含有されていることを特徴
とする耐摩耗性高飽和磁束密度高透磁率合金である。[0007] The invention according to claim 4 is the invention according to claims 1, 2, and 3.
The wear resistant high saturation magnetic flux density high magnetic permeability alloy described in any of the above, further comprising at least one of Zr, Nb and Mn in a total amount of 3.5 wt% or less. High saturation magnetic flux density and high permeability alloy.
【０００８】[0008]
【発明の実施の形態】一般に、磁気ヘッドコアはケース
に固定するため樹脂モールドして用いられるが、樹脂モ
ールドすると磁気ヘッドコアは透磁率が低下する。自動
改札機などに用いられる磁気ヘッドコアには、樹脂モー
ルド前の実効透磁率μｅが１０００以上、樹脂モールド
後の実効透磁率（コア厚さ０．２mmのときの１ＫＨｚ下
における透磁率）μｅが４００以上のものが要求されて
いる。DESCRIPTION OF THE PREFERRED EMBODIMENTS In general, a magnetic head core is used by being resin-molded to be fixed to a case. However, when resin-molded, the magnetic permeability of the magnetic head core decreases. A magnetic head core used in an automatic ticket gate and the like has an effective magnetic permeability μe before resin molding of 1000 or more, and an effective magnetic permeability (magnetic permeability under 1 KHz at a core thickness of 0.2 mm) of 400 after resin molding. The above is required.
【０００９】請求項１記載の発明は、高飽和磁束密度高
透磁率のＦｅ−Ｓｉ系合金に、Ｃｒを適量添加して耐食
性を付与し、さらにＴｉとＢをそれぞれ適量添加して耐
摩耗性を改善したものである。前記Ｓｉの含有量を６〜
９wt％に規定した理由は、Ｓｉが６wt％未満では樹脂モ
ールド後の実効透磁率μｅが４００以上にならず、９wt
％を超えると樹脂モールド前の実効透磁率μｅが１００
０以上にならず磁気ヘッドとして使用できないためであ
る。Ｃｒの含有量を０．５〜６wt％に規定した理由は、
Ｃｒが０．５wt％未満ではその耐食性改善効果が十分に
得られず、６wt％を超えると飽和磁束密度が１４０００
Ｇ未満となって２７５０ Ｏｅの記録媒体の記録・再生
が困難になるためである。ＴｉとＢとは共存して耐摩耗
性を向上させる。Ｔｉの含有量を０．１〜３．５wt％
に、Ｂの含有量を０．００１〜１wt％にそれぞれ規定し
た理由は、Ｔｉが０．１wt％未満でも、またＢが０．０
０１wt％未満でもこれらの効果が十分に得られず、Ｔｉ
が３．５wt％を超えると飽和磁束密度が１４０００Ｇ未
満となって２７５０ Ｏｅの記録媒体の記録・再生が困
難になり、Ｂが１wt％を超えると実効透磁率μｅが１０
００未満に低下して磁気ヘッドとしての機能が十分に得
られなくなるためである。ＴｉとＢは共存していないと
耐摩耗性が改善されない。この場合Ｂは微量でも効果が
ある。According to the first aspect of the present invention, corrosion resistance is imparted by adding an appropriate amount of Cr to an Fe-Si alloy having a high saturation magnetic flux density and a high magnetic permeability. Is an improvement. The content of Si is 6 to
The reason for specifying 9 wt% is that if Si is less than 6 wt%, the effective magnetic permeability μe after resin molding does not become 400 or more, and 9 wt%
%, The effective magnetic permeability μe before resin molding is 100.
This is because it cannot be used as a magnetic head because it does not exceed 0. The reason that the content of Cr is defined as 0.5 to 6 wt% is as follows.
If the Cr content is less than 0.5 wt%, the effect of improving corrosion resistance cannot be sufficiently obtained, and if the Cr content exceeds 6 wt%, the saturation magnetic flux density becomes 14,000.
This is because recording and reproduction on a recording medium of 2750 Oe become difficult when the value is less than G. Ti and B coexist to improve wear resistance. 0.1 to 3.5 wt% Ti content
The reason for specifying the B content to be 0.001 to 1 wt% is that even if Ti is less than 0.1 wt%,
If the content is less than 01 wt%, these effects cannot be sufficiently obtained.
Exceeds 3.5 wt%, the saturation magnetic flux density becomes less than 14000 G, and recording / reproducing of a 2750 Oe recording medium becomes difficult. When B exceeds 1 wt%, the effective magnetic permeability μe becomes 10%.
This is because it is reduced to less than 00, and the function as a magnetic head cannot be sufficiently obtained. If Ti and B do not coexist, the wear resistance is not improved. In this case, even a small amount of B is effective.
【００１０】請求項２記載の発明は、請求項１記載の発
明合金にＡｌ、Ｃｏ、Ｎｉのうちの少なくとも１種を含
有させたもので、前記３元素はいずれも実効透磁率向上
に寄与する。前記３元素の含有量を総計で１３wt％以下
に規定した理由は、前記３元素が総計で１３wt％を超え
るとモールド前の実効透磁率μｅが１０００未満となっ
て磁気ヘッドとしての機能が十分得られなくなるためで
ある。前記３元素のうち、Ａｌは耐食性の向上に、Ｃｏ
は飽和磁束密度の向上にそれぞれ寄与する。ここでＡｌ
の含有量は０．５wt％未満では実効透磁率が十分向上せ
ず、２．８wt％を超えると飽和磁束密度が低下する場合
があるので、０．５〜２．８wt％が望ましく、Ｃｏの含
有量は２wt％未満では実効透磁率が十分向上せず、１３
wt％を超えると樹脂モールド前の実効透磁率μｅが１０
００未満となって磁気ヘッドとしての機能が十分得られ
なくなるので、２〜１３wt％が望ましく、Ｎｉの含有量
は１wt％未満でも５wt％を超えても実効透磁率μｅが１
０００未満となり磁気ヘッドとしての機能が十分得られ
なくなるので、１〜５wt％が望ましい。According to a second aspect of the present invention, at least one of Al, Co and Ni is added to the alloy according to the first aspect of the present invention, and each of the three elements contributes to the improvement of the effective magnetic permeability. . The reason why the total content of the three elements is specified to be 13% by weight or less is that when the total of the three elements exceeds 13% by weight, the effective magnetic permeability μe before molding becomes less than 1000, and the function as a magnetic head is sufficiently obtained. This is because it will not be possible. Of the three elements, Al improves the corrosion resistance, while Co
Contribute to the improvement of the saturation magnetic flux density. Where Al
If the content is less than 0.5 wt%, the effective magnetic permeability is not sufficiently improved, and if it exceeds 2.8 wt%, the saturation magnetic flux density may be reduced. Therefore, the content of Co is desirably 0.5 to 2.8 wt%. If the content is less than 2 wt%, the effective magnetic permeability is not sufficiently improved.
If it exceeds wt%, the effective magnetic permeability μe before resin molding becomes 10
Since it is less than 00 and the function as a magnetic head cannot be sufficiently obtained, the content of Ni is desirably 2 to 13% by weight. Even if the Ni content is less than 1% by weight or exceeds 5% by weight, the effective magnetic permeability μe is 1%.
Since it is less than 000 and the function as a magnetic head cannot be sufficiently obtained, 1 to 5 wt% is desirable.
【００１１】請求項３記載の発明は、請求項１、２のい
ずれかに記載の発明合金に白金族元素を適量含有させ
て、前記合金の耐食性および耐摩耗性をさらに向上させ
たものである。白金族元素の含有量を２．０wt％以下に
規定した理由は、２．０wt％を超えると樹脂モールド前
の実効透磁率μｅが１０００未満に低下して磁気ヘッド
コアとしての機能が十分に得られなくなるためである。
なお、白金族元素の効果は、含有量が０．０１wt％以上
において特に明瞭に現れる。According to a third aspect of the present invention, the alloy according to any one of the first and second aspects further contains an appropriate amount of a platinum group element to further improve the corrosion resistance and wear resistance of the alloy. . The reason why the content of the platinum group element is specified to be 2.0 wt% or less is that if it exceeds 2.0 wt%, the effective magnetic permeability μe before resin molding is reduced to less than 1000, and the function as a magnetic head core can be sufficiently obtained. It is because it disappears.
Note that the effect of the platinum group element is particularly apparent when the content is 0.01 wt% or more.
【００１２】請求項４記載の発明は、請求項１、２、３
のいずれかに記載の発明合金にＺｒ、ＮｂまたはＭｎの
うちの少なくとも１種を適量含有させて、前記合金の耐
摩耗性をさらに向上させたものである。前記Ｚｒ、Ｎｂ
またはＭｎの含有量を総量で３．５wt％以下に規定した
理由は、３．５wt％を超えると樹脂モールド前の実効透
磁率μｅが１０００未満に低下して磁気ヘッドコアとし
ての機能が十分に得られなくなるためである。なお、前
記Ｚｒ、ＮｂまたはＭｎの効果は、含有量が０．０１wt
％以上において特に明瞭に現れる。[0012] The invention described in claim 4 is the first, second, and third inventions.
In the invention alloy according to any one of the above, at least one of Zr, Nb and Mn is contained in an appropriate amount to further improve the wear resistance of the alloy. Zr, Nb
Alternatively, the reason that the Mn content is specified to be 3.5 wt% or less in total is that if it exceeds 3.5 wt%, the effective magnetic permeability μe before resin molding is reduced to less than 1000, and the function as a magnetic head core is sufficiently obtained. This is because it will not be possible. The effect of Zr, Nb or Mn is that the content is 0.01 wt.
%, It appears particularly clearly.
【００１３】[0013]
【実施例】以下に本発明を実施例により詳細に説明す
る。純度９９．９５wt％のＦｅ、９９．５wt％のＣｏ、
９９．９wt％のＮｉ、９９．９９wt％のＳｉ、９９．９
９wt％のＡｌ、９９wt％のＣｒなどを原料に用い、これ
ら原料をアルミナ坩堝に入れて、高周波溶解炉で真空下
（３〜７×１０-5ｍｍＨｇ）で溶解し、この溶湯を鋳鉄
製金型に鋳造して、種々組成の鋳塊（２５×２５×１６
０ｍｍ）を得、これを９５０℃で２４時間ソーキングし
た。次にこの鋳塊を放電加工により円筒状に加工し、ワ
イヤーソーにて輪切りにし、ラッピングにより表面を平
滑に仕上げて、外径８ｍｍ、内径４ｍｍ、厚さ０．２ｍ
ｍのドーナツ状円板体を得た。次にこれを水素気流中で
９５０℃で１時間焼鈍後、０．７℃／秒の速度で室温ま
で冷却して試験片とし、この試験片について樹脂モール
ド前後の実効透磁率μｅを１ＫＨｚ下で測定した。この
他、飽和磁束密度を測定し、また耐食性および耐摩耗性
を評価した。飽和磁束密度は、前記ソーキング後の鋳塊
から削り出した１×１×１０ｍｍ寸法の試験片につい
て、ＶＳＭ（振動試料形磁力計）を用いて磁場を１０Ｋ
Ｏｅまで掛けて測定した。耐食性は、前記ソーキング後
の鋳塊から削り出した３×８×８０ｍｍ寸法の試験片の
８×８０ｍｍの１面を２０００番のＧＣ砥石で研磨し、
この試験片に３５℃の塩水（濃度１wt％）を５時間噴霧
し、噴霧後の前記研磨面の変色部分の全研磨面に対する
面積比率を測定し評価した。耐摩耗性は、前記ソーキン
グ後の鋳塊から削り出した１２×１４×１５ｍｍ寸法の
試験片の１２×１４ｍｍの１面を２０００番のＧＣ砥石
で半径６ｍｍの曲面に研磨し、この研磨面をラッピング
カード（１５μｍのＧＣ砥石を塗布したもの）に往復摺
動させ、前記研磨面の磨耗量が１００μｍになるまでの
摺動回数を計測し評価した。前記摺動は温度２４℃湿度
６０％の恒温恒湿槽内にて行い、摺動回数は１往復を１
回と数えた。表１〜５に合金組成を、表６〜１０に試験
結果をそれぞれ示す。なお、表６〜１０の透磁率とは実
効透磁率のことである。また表６〜１０の飽和透束密度
の単位はガウス、耐食性の単位は％、耐摩耗性の単位は
摺動回である。The present invention will be described below in detail with reference to examples. Purity 99.95 wt% Fe, 99.5 wt% Co,
99.9 wt% Ni, 99.99 wt% Si, 99.9
9 wt% of Al, 99 wt% of Cr, etc. are used as raw materials, and these raw materials are put into an alumina crucible and melted in a high-frequency melting furnace under vacuum (3 to 7 × 10 −5 mmHg). Ingots of various compositions (25 × 25 × 16
0 mm), which was soaked at 950 ° C. for 24 hours. Next, the ingot is processed into a cylindrical shape by electric discharge machining, cut into a ring by a wire saw, and the surface is finished smoothly by lapping. The outer diameter is 8 mm, the inner diameter is 4 mm, and the thickness is 0.2 m.
m was obtained. Next, this was annealed at 950 ° C. for 1 hour in a hydrogen stream, and then cooled to room temperature at a rate of 0.7 ° C./sec to obtain a test piece. It was measured. In addition, the saturation magnetic flux density was measured, and the corrosion resistance and wear resistance were evaluated. The saturation magnetic flux density was measured by using a VSM (vibrating sample magnetometer) with a magnetic field of 10 K for a 1 × 1 × 10 mm size test piece cut out of the ingot after the soaking.
Oe was measured. Corrosion resistance is obtained by polishing one surface of a test piece of 3 × 8 × 80 mm size 8 × 80 mm cut out from the ingot after soaking with a No. 2000 GC grindstone,
The test piece was sprayed with 35 ° C. salt water (concentration: 1 wt%) for 5 hours, and the area ratio of the discolored portion of the polished surface to the total polished surface after spraying was measured and evaluated. The abrasion resistance is such that a 12 × 14 mm surface of a 12 × 14 × 15 mm test piece cut from the ingot after soaking is polished to a curved surface with a radius of 6 mm using a No. 2000 GC grindstone. The lapping card (applied with a 15 μm GC grindstone) was slid back and forth, and the number of slides until the amount of wear on the polished surface became 100 μm was measured and evaluated. The sliding is performed in a thermo-hygrostat at a temperature of 24 ° C. and a humidity of 60%.
Counted as times. Tables 1 to 5 show alloy compositions, and Tables 6 to 10 show test results. Note that the magnetic permeability in Tables 6 to 10 is the effective magnetic permeability. In Tables 6 to 10, the unit of the saturated flux density is Gauss, the unit of corrosion resistance is%, and the unit of wear resistance is sliding.
【００１４】[0014]
【表１】 [Table 1]
【００１５】[0015]
【表２】 [Table 2]
【００１６】[0016]
【表３】 [Table 3]
【００１７】[0017]
【表４】 [Table 4]
【００１８】[0018]
【表５】 [Table 5]
【００１９】[0019]
【表６】 [Table 6]
【００２０】[0020]
【表７】 [Table 7]
【００２１】[0021]
【表８】 [Table 8]
【００２２】[0022]
【表９】 [Table 9]
【００２３】[0023]
【表10】 [Table 10]
【００２４】表６〜１０より明らかなように、本発明例
のNo.1〜82は、いずれも樹脂モールド前の実効透磁率μ
ｅが１０００以上、樹脂モールド後の実効透磁率μｅが
４００以上、飽和磁束密度が１４０００Ｇ以上で抗磁力
が２７５０ Ｏｅの記録媒体の記録・再生が可能であ
り、腐食面積比率は９０％未満、耐摩耗性は摺動回数が
７０００回以上であり自動改札機の磁気ヘッドコアなど
に用いて問題のない特性であった。本発明例の中ではN
o.4〜7,20〜23はＡｌが含有されているため、請求項１
記載の発明合金 (No.1〜3)に較べて、透磁率と耐食性が
向上し、 No.12〜15はＣｏが含有されているため透磁率
と飽和磁束密度が向上し、 No.16〜19はＮｉが含有され
ているために透磁率が向上した。No.8〜11はＡｌとＣｏ
が含有されているため、 No.24〜33はＡｌ、Ｃｏ、およ
びＮｉが含有されているため、透磁率と耐食性と飽和磁
束密度が向上し、 No.34は白金族を含有するため耐食性
と耐摩耗性が向上し、 No.35〜37はＺｒ、Ｎｂ、または
Ｍｎのいずれかが含有されているため耐摩耗性が向上し
た。なお、No.4はＡｌが０．５wt％未満のため耐食性
が、 No.12はＣｏが２wt％未満のため飽和磁束密度が、
No.16はＮｉが１wt％未満のため透磁率が、いずれも十
分には向上しなかった。また No.38〜51は白金族を含有
しているため、請求項２記載の発明合金に較べて耐食性
と耐摩耗性が向上し、 No.52〜69は、Ｚｒ、Ｎｂ、また
はＭｎのいずれかが含有されているため耐摩耗性が向上
した。またNo.70 〜82は、Ｚｒ、Ｎｂ、またはＭｎのい
ずれかが含有されているため請求項３記載の発明合金に
較べて耐摩耗性がさらに向上した。As is clear from Tables 6 to 10, Nos. 1 to 82 of the examples of the present invention all have an effective magnetic permeability μ before resin molding.
e is 1000 or more, the effective magnetic permeability μe after resin molding is 400 or more, the saturation magnetic flux density is 14000 G or more, and the coercive force is 2750 Oe. The abrasion property was such that the number of times of sliding was 7000 times or more, and it was a problem-free property when used in a magnetic head core of an automatic ticket gate. In the examples of the present invention, N
o.4 to 7,20 to 23 contain Al, so claim 1
Compared with the described invention alloys (Nos. 1 to 3), the magnetic permeability and corrosion resistance are improved, and Nos. 12 to 15 are improved in magnetic permeability and saturation magnetic flux density due to the inclusion of Co. In No. 19, the permeability was improved due to the inclusion of Ni. Nos. 8 to 11 are Al and Co
Since No. 24 to 33 contain Al, Co, and Ni, the magnetic permeability, corrosion resistance, and saturation magnetic flux density are improved, and No. 34 contains the platinum group and has corrosion resistance. The wear resistance was improved, and No. 35 to No. 37 contained Zr, Nb, or Mn, so that the wear resistance was improved. No. 4 has corrosion resistance because Al is less than 0.5 wt%, and No. 12 has saturation magnetic flux density because Co is less than 2 wt%.
In No. 16, the magnetic permeability was not sufficiently improved because Ni was less than 1 wt%. Further, Nos. 38 to 51 contain a platinum group, so that corrosion resistance and wear resistance are improved as compared with the alloy of the invention described in claim 2, and Nos. 52 to 69 show any of Zr, Nb, and Mn. The wear resistance was improved due to the presence of slag. Further, in Nos. 70 to 82, any one of Zr, Nb and Mn was contained, so that the wear resistance was further improved as compared with the alloy according to the third aspect of the present invention.
【００２５】他方、比較例のNo.1はＳｉ量が少ないため
モールド前後の実効透磁率が低く、No.2はＳｉが多いた
めモールド前の実効透磁率が低下した。No.3はＣｒが少
ないため耐食性と耐摩耗性に劣り、No.4はＣｒが多いた
め飽和磁束密度が低下した。No.5〜7 はＴｉとＢが共存
していないため、またNo.8〜10はＴｉとＢ量が規定値未
満のため、いずれも耐摩耗性が低下した。No.11,12はＡ
ｌ、Ｃｏ、Ｎｉの総量が多いため、 No.13は白金族が多
いため、 No.14〜16はＺｒ、Ｎｂ、またはＭｎが多いた
め、いずれもモールド前の実効透磁率が低下した。On the other hand, in Comparative Example No. 1, the effective magnetic permeability before and after the molding was low due to the small amount of Si, and in No. 2, the effective magnetic permeability before the molding was low due to the large amount of Si. No. 3 was inferior in corrosion resistance and abrasion resistance due to low Cr, and No. 4 was low in saturation magnetic flux density due to high Cr. In Nos. 5 to 7, Ti and B did not coexist, and in Nos. 8 to 10, the amounts of Ti and B were less than the specified values. No.11 and 12 are A
Since the total amount of l, Co, and Ni is large, No. 13 has a large amount of platinum group, and Nos. 14 to 16 have a large amount of Zr, Nb, or Mn.
【００２６】[0026]
【発明の効果】以上に述べたように、本発明の合金は、
ＴｉとＢ、ＡＩ、白金族元素、Ｚｒ、Ｎｂ、Ｍｎなどの
元素を添加することにより、優れた飽和磁束密度および
透磁率を保持し、かつ耐摩耗性および耐食性を向上させ
た磁性合金で、駅の自動改札機用磁気ヘッドコアなどに
適し、工業上顕著な効果を奏する。As described above, the alloy of the present invention is
By adding elements such as Ti and B, AI, platinum group elements, Zr, Nb, Mn, etc., it is a magnetic alloy that maintains excellent saturation magnetic flux density and magnetic permeability, and has improved wear resistance and corrosion resistance. Suitable for magnetic head cores for automatic ticket gates at stations, etc., and has a remarkable industrial effect.
フロントページの続き (72)発明者 青木 繁利 神奈川県平塚市東八幡５丁目１番８号 株 式会社古河テクノマテリアル内Continued on the front page (72) Inventor Shigetori Aoki 5-1-1-8 Higashi-Hachiman, Hiratsuka-shi, Kanagawa Inside Furukawa Techno Material Co., Ltd.
Claims (4)
％、Ｔｉが０．１〜３．５wt％、Ｂが０．００１〜１wt
％含有され、残部がＦｅからなることを特徴とする耐摩
耗性高飽和磁束密度高透磁率合金。(1) Si is 6 to 9 wt% and Cr is 0.5 to 6 wt%.
%, 0.1 to 3.5 wt% of Ti, 0.001 to 1 wt% of B
%, With the balance being Fe.
％、Ｔｉが０．１〜３．５wt％、Ｂが０．００１〜１wt
％含有され、Ａｌ、Ｃｏ、Ｎｉのうちの少なくとも１種
が総計で１３wt％以下含有され、残部がＦｅからなるこ
とを特徴とする耐摩耗性高飽和磁束密度高透磁率合金。2. Si is 6 to 9 wt% and Cr is 0.5 to 6 wt%.
%, 0.1 to 3.5 wt% of Ti, 0.001 to 1 wt% of B
%. At least one of Al, Co and Ni is contained in a total of 13 wt% or less, and the balance is Fe.
性高飽和磁束密度高透磁率合金に、さらに白金族元素が
２．０wt％以下含有されていることを特徴とする耐摩耗
性高飽和磁束密度高透磁率合金。3. The wear-resistant high saturation magnetic flux density high magnetic permeability alloy according to claim 1, further comprising a platinum group element in an amount of 2.0 wt% or less. High saturation magnetic flux density high permeability alloy.
摩耗性高飽和磁束密度高透磁率合金に、さらにＺｒ、Ｎ
ｂまたはＭｎのうちの少なくとも１種が総量で３．５wt
％以下含有されていることを特徴とする耐摩耗性高飽和
磁束密度高透磁率合金。4. The wear resistant high saturation magnetic flux density high magnetic permeability alloy according to claim 1, further comprising Zr, N
at least one of b or Mn is 3.5 wt.
% Of wear resistant high saturation magnetic flux density high magnetic permeability alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2962497A JPH10212554A (en) | 1997-01-29 | 1997-01-29 | Wear resistant high saturated magnetic flux density high permeability alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2962497A JPH10212554A (en) | 1997-01-29 | 1997-01-29 | Wear resistant high saturated magnetic flux density high permeability alloy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH10212554A true JPH10212554A (en) | 1998-08-11 |
Family
ID=12281253
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2962497A Pending JPH10212554A (en) | 1997-01-29 | 1997-01-29 | Wear resistant high saturated magnetic flux density high permeability alloy |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH10212554A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110720130A (en) * | 2017-05-17 | 2020-01-21 | Crs 控股公司 | Fe-Si-based alloy and method for producing same |
| CN111370196A (en) * | 2020-04-10 | 2020-07-03 | 泉州天智合金材料科技有限公司 | FeSiCr soft magnetic powder suitable for MIM winding inductor, preparation method and winding inductor |
-
1997
- 1997-01-29 JP JP2962497A patent/JPH10212554A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110720130A (en) * | 2017-05-17 | 2020-01-21 | Crs 控股公司 | Fe-Si-based alloy and method for producing same |
| JP2020521045A (en) * | 2017-05-17 | 2020-07-16 | シーアールエス ホールディングス, インコーポレイテッドCrs Holdings, Incorporated | Fe-Si based alloy and method for producing the same |
| JP2021191895A (en) * | 2017-05-17 | 2021-12-16 | シーアールエス ホールディングス, インコーポレイテッドCrs Holdings, Incorporated | Fe-Si BASE ALLOY AND METHOD OF MAKING THE SAME |
| CN111370196A (en) * | 2020-04-10 | 2020-07-03 | 泉州天智合金材料科技有限公司 | FeSiCr soft magnetic powder suitable for MIM winding inductor, preparation method and winding inductor |
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