JPH0770718A - Electric stainless steel - Google Patents
Electric stainless steelInfo
- Publication number
- JPH0770718A JPH0770718A JP5221960A JP22196093A JPH0770718A JP H0770718 A JPH0770718 A JP H0770718A JP 5221960 A JP5221960 A JP 5221960A JP 22196093 A JP22196093 A JP 22196093A JP H0770718 A JPH0770718 A JP H0770718A
- Authority
- JP
- Japan
- Prior art keywords
- stainless steel
- weight
- less
- diffraction intensity
- steel material
- 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
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
- H01F1/147—Alloys characterised by their composition
- H01F1/14766—Fe-Si based alloys
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Soft Magnetic Materials (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は電磁ステンレス鋼材に関
し、更に詳しくは、透磁率，磁束密度，保磁力などの磁
気特性が優れ、かつ耐食性も優れている電磁ステンレス
鋼材に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electromagnetic stainless steel material, and more particularly to an electromagnetic stainless steel material having excellent magnetic properties such as magnetic permeability, magnetic flux density and coercive force and excellent corrosion resistance.
【０００２】[0002]
【従来の技術】例えば、家庭電気機器用小型モータなど
の鉄心の材料としては、一般に、純鉄やケイ素鋼が使用
されている。しかし、この材料は、必ずしも耐食性が良
好であるとはいえず、腐食環境で用いる電磁材料として
の使用限界がある。一方、耐食性が優れた材料としては
ＳＵＳ ３０４などのオーステナイト系ステンレス鋼材
が広く用いられている。しかし、オーステナイト系ステ
ンレス鋼材は、通常、非磁性であり、軟磁性材料として
用いることはできない。2. Description of the Related Art For example, pure iron or silicon steel is generally used as a material for an iron core of a small motor for household electric appliances. However, this material does not always have good corrosion resistance, and there is a limit to its use as an electromagnetic material used in a corrosive environment. On the other hand, an austenitic stainless steel material such as SUS 304 is widely used as a material having excellent corrosion resistance. However, austenitic stainless steel materials are usually nonmagnetic and cannot be used as soft magnetic materials.
【０００３】ステンレス鋼材の備える耐食性をそのまま
維持した電磁ステンレス鋼材は、いずれもその磁気特性
があまり優れているとはいえない状況にある。The electromagnetic characteristics of the electromagnetic stainless steel materials, which maintain the corrosion resistance of the stainless steel materials as they are, are not so excellent.
【０００４】[0004]
【発明が解決しようとする課題】本発明は電磁ステンレ
ス鋼材に関する上記した問題に鑑みてなされたものであ
って、耐食性が優れていることは勿論のこと、磁気特性
も従来の電磁ステンレス鋼材よりも優れている電磁ステ
ンレス鋼材の提供を目的とする。SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems relating to electromagnetic stainless steel materials, and is not only excellent in corrosion resistance but also has magnetic characteristics better than conventional electromagnetic stainless steel materials. The purpose is to provide excellent electromagnetic stainless steel materials.
【０００５】[0005]
【課題を解決するための手段】本発明者らは、上記した
目的を達成するために鋭意研究を重ねた結果、後述する
ような組成から成り、かつ、後述するようなＸ線回折強
度を示すステンレス鋼は、磁気特性，耐食性のいずれも
が優れているとの事実を見出し、この事実に基づいて本
発明の電磁ステンレス鋼材を開発するに至った。Means for Solving the Problems The inventors of the present invention have conducted extensive studies in order to achieve the above-mentioned object, and as a result, have the composition described below and exhibit the X-ray diffraction intensity described below. It was found that stainless steel is excellent in both magnetic properties and corrosion resistance, and based on this fact, the electromagnetic stainless steel material of the present invention was developed.
【０００６】すなわち、本発明の電磁ステンレス鋼材
は、Ｃ：0.０２重量％以下，Ｎ：0.０２重量％以下，Ｓ
ｉ：0.０１〜1.００重量％，Ａｌ：0.００１〜6.０重量
％，Ｍｎ：1.００重量％以下，Ｃｒ：7.０〜２5.０重量
％，残部：Ｆｅを必須成分とする鋼材であって、その表
面に対するＸ線回折強度測定時における（２１１）面の
回折強度が全回折強度の３０％以上であることを特徴と
する。[0006] That is, the electromagnetic stainless steel material of the present invention, C: 0.02 wt% or less, N: 0.02 wt% or less, S
i: 0.01 to 1.00 wt%, Al: 0.001 to 6.0 wt%, Mn: 1.00 wt% or less, Cr: 7.0 to 25.0 wt%, balance: Fe is essential The steel material as a component is characterized in that the diffraction intensity of the (211) plane at the time of X-ray diffraction intensity measurement with respect to the surface is 30% or more of the total diffraction intensity.
【０００７】まず、本発明の電磁ステンレス鋼材の組成
について説明する。Ｃは、製鋼上、不可避的に含まれる
が、あまり多く含まれていると、磁気特性を劣化させ、
結晶粒界に他成分との炭化物として析出して材料の耐食
性を劣化させると同時に、材料を硬くして変形抵抗を高
め、例えば深絞り加工などが困難になるので、その含有
量は0.０２重量％以下にする。First, the composition of the electromagnetic stainless steel material of the present invention will be described. C is inevitably contained in steel making, but if it is contained too much, it deteriorates the magnetic properties,
Since it precipitates as a carbide with other components in the grain boundaries and deteriorates the corrosion resistance of the material, at the same time, it hardens the material and increases the deformation resistance, and for example, deep drawing becomes difficult, so its content is 0.02. Reduce to less than weight%.
【０００８】Ｎは、材料の高温強度の向上に資する成分
であるが、あまり多く含まれていると、他成分との間で
窒化物を生成して材料の靱性低下を引き起こし、変形抵
抗を高め、加工性を劣化させ、更に磁気特性を劣化させ
るので、その含有量は0.０２重量％以下に設定する。Ｓ
ｉは、耐酸化性の向上に資するとともに、材料の電気抵
抗率を向上させ、渦電流損を少なくし、交流磁気特性を
高めるための成分である。その含有量が0.０１重量％よ
りも少なくなると上記した効果がえられず、また1.００
重量％より多くなると、材料は脆くなり、深絞り効果や
打抜き加工が困難になるので、その含有量は0.０１〜1.
００重量％に設定される。[0008] N is a component that contributes to the improvement of the high temperature strength of the material. However, if it is contained in a too large amount, it forms a nitride with other components to cause a decrease in the toughness of the material and to increase the deformation resistance. However, since the workability is deteriorated and the magnetic properties are further deteriorated, the content thereof is set to 0.02% by weight or less. S
i is a component that contributes to the improvement of oxidation resistance, improves the electrical resistivity of the material, reduces the eddy current loss, and enhances the AC magnetic characteristics. If the content is less than 0.01% by weight, the above effect cannot be obtained, and 1.00
If it is more than wt%, the material becomes brittle, and the deep drawing effect and punching become difficult, so its content is 0.01-1.
It is set to 00% by weight.
【０００９】Ａｌも上記したＳｉと同じような働きをす
る成分であり、その含有量は、Ｓｉと同じような理由で
0.００１〜6.０重量％の範囲内に設定される。Ｍｎは、
脱酸剤として機能する成分であるが、あまり多く含まれ
ていると、材料は脆性になって熱間，冷間における加工
性が低下すると同時に、磁気特性の低下も引き起こされ
るので、その含有量は1.００重量％を上限とする。Al is also a component that functions similarly to Si described above, and its content is the same as that of Si for the same reason.
It is set within the range of 0.001 to 6.0% by weight. Mn is
Although it is a component that functions as a deoxidizer, if it is contained too much, the material becomes brittle and the workability in hot and cold is deteriorated, and at the same time the magnetic properties are deteriorated. Up to 1.00% by weight.
【００１０】Ｃｒは、耐食性の向上に資する成分であ
り、含有量は7.０〜２5.０重量％に設定される。含有量
が7.０重量％より少なくなると、材料の耐食性は劣化
し、また、２5.０重量％より多くなると、材料は脆性に
なって深絞り加工や打抜き加工が困難になる。本発明の
鋼材は上記した成分を必須とするが、更には、Ｔｉ，Ｎ
ｂ，Ｖ，Ｂの１種または２種以上が含有されていてもよ
い。Cr is a component that contributes to the improvement of corrosion resistance, and the content is set to 7.0 to 25.0% by weight. If the content is less than 7.0% by weight, the corrosion resistance of the material deteriorates, and if it exceeds 25.0% by weight, the material becomes brittle and it becomes difficult to perform deep drawing and punching. The steel material of the present invention requires the above-mentioned components as essential components.
One or more of b, V and B may be contained.
【００１１】これらのうち、Ｔｉ，Ｎｂ，Ｖはいずれも
ＣやＮを固定して材料の磁気特性の向上に資する成分で
あるが、その含有量が少なすぎると上記効果が充分に得
られず、逆に多すぎると材料が硬くなって加工性の低下
を引き起こすので、Ｔｉの含有量は0.０２〜0.３５重量
％，Ｎｂの含有量は0.０１〜1.００重量％，Ｖの含有量
は0.０１〜1.０重量％の範囲にすることが好ましい。Of these, Ti, Nb, and V are components that fix C and N and contribute to the improvement of the magnetic properties of the material. However, if the content is too small, the above effects cannot be sufficiently obtained. On the contrary, if the amount is too large, the material becomes hard and the workability is deteriorated. Therefore, the content of Ti is 0.02 to 0.35% by weight, the content of Nb is 0.01 to 1.00% by weight, V The content of is preferably in the range of 0.01 to 1.0% by weight.
【００１２】Ｂは、結晶粒の整粒化に資するとともに、
上記Ｔｉ系の元素と一緒になって材料の磁気特性と耐食
性の向上をもたらす成分であって、その含有量は0.００
０２〜0.０１重量％に設定することが好ましい。含有量
が0.０００２重量％より少ない場合は上記した効果を得
ることができず、また0.０１重量％より多くなると、材
料は脆性となり、低融点化して熱間加工性の低下を招く
とともに、材料が高価格化するからである。B contributes to the sizing of crystal grains, and
It is a component that improves the magnetic properties and corrosion resistance of the material together with the above Ti-based element, and its content is 0.00
It is preferably set to 02 to 0.01% by weight. If the content is less than 0.0002% by weight, the above effect cannot be obtained, and if it is more than 0.01% by weight, the material becomes brittle, and the melting point is lowered to lower the hot workability. , Because the price of materials will increase.
【００１３】上記したＴｉ，Ｎｂ，Ｖ，Ｂに加えて、Ｍ
ｏ，Ｎｉ，Ｃｕの１種または２種以上を含有させてもよ
い。これら任意成分Ｍｏ，Ｎｉ，Ｃｕは、いずれも、材
料の耐食性の向上に資する成分であるが、あまり多く含
まれていると、材料の磁束密度の低下と保磁力の上昇を
招くので、Ｍｏの含有量は3.００重量％以下，Ｎｉの含
有量は3.００重量％以下，Ｃｕの含有量は2.００重量％
以下に制限することが好ましい。In addition to the above Ti, Nb, V and B, M
One or two or more of o, Ni and Cu may be contained. All of these optional components Mo, Ni, and Cu are components that contribute to the improvement of the corrosion resistance of the material. However, if they are contained in too much amount, the magnetic flux density of the material is lowered and the coercive force is increased. Content is 3.00% by weight or less, Ni content is 3.00% by weight or less, Cu content is 2.00% by weight
It is preferable to limit to the following.
【００１４】以上の組成を有する本発明の鋼材は、その
表面に対してＸ線回折強度を測定したときに、その表面
からの全反射回折強度のうち、面指数（２１１）に対応
した回折強度の割合が３０％以上になっていることを特
徴とする。（２１１）面のＸ線回折強度の割合が３０％
より小さい材料は、その組成が前記した組成であったと
しても、磁気特性は向上していない。When the X-ray diffraction intensity is measured on the surface of the steel material of the present invention having the above composition, the diffraction intensity corresponding to the surface index (211) of the total reflection diffraction intensity from the surface. Is 30% or more. X-ray diffraction intensity ratio of (211) plane is 30%
The smaller material, even if it has the composition described above, does not have improved magnetic properties.
【００１５】[0015]
実施例１〜１１，比較例１〜６ 表１で示した組成の鋼をＡｒ雰囲気下の高周波誘導炉で
溶製した。得られた各インゴットに、温度１０５０℃で
熱間鍛造を行って、厚み５０mmのスラブにした。Examples 1 to 11 and Comparative Examples 1 to 6 Steels having the compositions shown in Table 1 were melted in a high frequency induction furnace under an Ar atmosphere. Each of the obtained ingots was hot forged at a temperature of 1050 ° C. to form a slab having a thickness of 50 mm.
【００１６】ついで、各スラブに、温度１０５０℃で熱
間圧延を行って厚み4.５mmとした。更に、冷間圧延と焼
鈍を施して最終の厚み２mmの鋼帯とした。得られた鋼帯
を、温度９５０℃で２時間焼鈍したのち、それぞれの磁
気特性と孔食電位を測定した。また、各鋼帯の表面に対
してＸ線回折分析を行い、得られたチャートから（２１
１）面の回折強度の割合を算出した。以上の結果を一括
して表１に示した。Then, each slab was hot-rolled at a temperature of 1050 ° C. to a thickness of 4.5 mm. Further, cold rolling and annealing were performed to obtain a final steel strip having a thickness of 2 mm. The obtained steel strips were annealed at a temperature of 950 ° C. for 2 hours, and then their magnetic characteristics and pitting corrosion potential were measured. In addition, X-ray diffraction analysis was performed on the surface of each steel strip, and from the obtained chart (21
1) The ratio of the diffraction intensity of the plane was calculated. The above results are collectively shown in Table 1.
【００１７】なお、孔食電位は、鋼帯を濃度3.５％のＮ
ａＣｌ水溶液（液温３０℃）に浸漬したのち、陽分極し
電流値が１００mAになったときの電位の測定値である。The pitting corrosion potential of steel strip is 3.5% N.
After being immersed in an aCl aqueous solution (solution temperature 30 ° C.), it was positively polarized and the measured value of the potential when the current value became 100 mA.
【００１８】[0018]
【表１】 [Table 1]
【００１９】[0019]
【発明の効果】以上の結果から明らかなように、本発明
の電磁ステンレス鋼材は、優れた磁気特性と耐食性を併
有している。したがって、鉄心などに用いる鋼帯として
の用途の外に、例えば、電磁リレー，電磁バルブ，電子
燃料噴射装置の部材に用いる素材としての用途にも使用
することができる。As is clear from the above results, the electromagnetic stainless steel material of the present invention has both excellent magnetic properties and corrosion resistance. Therefore, it can be used not only as a steel strip used for an iron core or the like but also as a material used for a member of an electromagnetic relay, an electromagnetic valve, or an electronic fuel injection device.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 大内 康秀 宮城県仙台市太白区西多賀３丁目３の７ ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yasuhide Ouchi 3-3-3, Nishitaga, Taihaku-ku, Sendai City, Miyagi Prefecture
Claims (4)
％以下，Ｓｉ：0.０１〜1.００重量％，Ａｌ：0.００１
〜6.０重量％，Ｍｎ：1.００重量％以下，Ｃｒ：7.０〜
２5.０重量％，残部：Ｆｅを必須成分とする鋼材であっ
て、その表面に対するＸ線回折強度測定時における（２
１１）面の回折強度が全回折強度の３０％以上であるこ
とを特徴とする電磁ステンレス鋼材。1. C: 0.02 wt% or less, N: 0.02 wt% or less, Si: 0.01 to 1.00 wt%, Al: 0.001
~ 6.0 wt%, Mn: 1.00 wt% or less, Cr: 7.0 ~
25.0% by weight, balance: a steel material containing Fe as an essential component, and measuring the X-ray diffraction intensity (2
11) An electromagnetic stainless steel material characterized in that the diffraction intensity of the surface is 30% or more of the total diffraction intensity.
３５重量％，Ｎｂ：0.０１〜1.００重量％，Ｖ：0.０１
〜1.００重量％，Ｂ：0.０００２〜0.０１重量％の１種
または２種以上が含まれている請求項１の電磁ステンレ
ス鋼材。2. The steel material further comprises Ti: 0.02 to 0.02.
35% by weight, Nb: 0.01 to 1.00% by weight, V: 0.01
The electromagnetic stainless steel material according to claim 1, wherein the electromagnetic stainless steel material contains one or more of B-0.0002 to 0.01% by weight.
3.００重量％以下，Ｃｕ：2.００重量％以下の１種また
は２種以上が含まれている請求項２の電磁ステンレス鋼
材。3. Further, Mo: 3.00% by weight or less, Ni:
The electromagnetic stainless steel material according to claim 2, which contains one or more of 2.00% by weight or less and Cu: 2.00% by weight or less.
ス帯材である請求項１〜３のいずれかに記載の電磁ステ
ンレス鋼材。4. The electromagnetic stainless steel material according to claim 1, wherein the electromagnetic stainless steel material is an electromagnetic stainless steel strip material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5221960A JPH0770718A (en) | 1993-09-07 | 1993-09-07 | Electric stainless steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5221960A JPH0770718A (en) | 1993-09-07 | 1993-09-07 | Electric stainless steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0770718A true JPH0770718A (en) | 1995-03-14 |
Family
ID=16774860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5221960A Pending JPH0770718A (en) | 1993-09-07 | 1993-09-07 | Electric stainless steel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0770718A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004053171A1 (en) * | 2002-12-12 | 2004-06-24 | Nippon Steel & Sumikin Stainless Steel Corporation | Cr-CONTAINING HEAT-RESISTANT STEEL SHEET EXCELLENT IN WORKABILITY AND METHOD FOR PRODUCTION THEREOF |
-
1993
- 1993-09-07 JP JP5221960A patent/JPH0770718A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004053171A1 (en) * | 2002-12-12 | 2004-06-24 | Nippon Steel & Sumikin Stainless Steel Corporation | Cr-CONTAINING HEAT-RESISTANT STEEL SHEET EXCELLENT IN WORKABILITY AND METHOD FOR PRODUCTION THEREOF |
| US7682559B2 (en) | 2002-12-12 | 2010-03-23 | Nippon Steel Corporation | Cr-bearing heat-resistant steel sheet excellent in workability and method for production thereof |
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