JP2001123251A - Corrosion resistant soft magnetic material excellent in machinability - Google Patents
Corrosion resistant soft magnetic material excellent in machinabilityInfo
- Publication number
- JP2001123251A JP2001123251A JP30399799A JP30399799A JP2001123251A JP 2001123251 A JP2001123251 A JP 2001123251A JP 30399799 A JP30399799 A JP 30399799A JP 30399799 A JP30399799 A JP 30399799A JP 2001123251 A JP2001123251 A JP 2001123251A
- Authority
- JP
- Japan
- Prior art keywords
- machinability
- soft magnetic
- magnetic material
- less
- corrosion resistance
- 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.)
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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
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、電磁弁や各種セン
サー等に用いられる被削性に優れた耐食軟磁性材料に関
するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a corrosion-resistant soft magnetic material having excellent machinability and used for solenoid valves and various sensors.
【０００２】[0002]
【従来の技術】一般に電磁弁などの鉄芯材料としては、
従来から純鉄、珪素鋼、１３Ｃｒ−２Ｓｉ鋼、１３Ｃｒ
−０．８Ｓｉ−０．２５Ａｌ−Ｐｂ鋼などがあり、電磁
弁の固定鉄芯やプランジャーその他に使用されており、
また最近はＣｒ，Ａｌなどを増量あるいは添加して耐食
性、磁性、その他の改善を図った種々の軟磁性材料が開
発され、一部実用化されている。しかしながら、従来用
いられてきた材料のうち、純鉄、珪素鋼は被削性および
耐食性が悪く、１３Ｃｒ−２Ｓｉ鋼は耐食性は改善され
たが被削性が悪く、１３Ｃｒ−０．８Ｓｉ−０．２５Ａ
ｌ−Ｐｂ鋼は耐食性、被削性は改善されたが、Ｐｂは人
体に悪影響を及ぼすため使用は制限されるこれら必要な
特性の全てを満足させる材料はなかった。2. Description of the Related Art Generally, iron core materials such as solenoid valves include:
Conventionally pure iron, silicon steel, 13Cr-2Si steel, 13Cr
-0.8Si-0.25Al-Pb steel, etc. are used for fixed iron cores and plungers of solenoid valves, etc.
Recently, various soft magnetic materials have been developed and improved in corrosion resistance, magnetism and other properties by increasing or adding Cr, Al and the like, and some of them have been put to practical use. However, among the materials conventionally used, pure iron and silicon steel have poor machinability and corrosion resistance, and 13Cr-2Si steel has improved corrosion resistance but poor machinability, and 13Cr-0.8Si-0. 25A
Although 1-Pb steel has improved corrosion resistance and machinability, there is no material that satisfies all of these required properties, which limit the use of Pb because it has an adverse effect on the human body.
【０００３】上述したような問題に対して、例えば、特
公平６−１０３２４号公報のように、Ｃ＋Ｎ＜０．０２
％、Ｓｉ≦３％、Ｍｎ≦０．５０％、Ｃｒ：１２〜１８
％、Ａｌ：０．８〜１．５％未満、Ｍｏ：０．０５〜
１．５％、Ｐｂ≦０．０４０％、Ｓ≦０．０３０％、残
部鉄及び不可避不純物よりなることを特徴とする快削耐
食性軟磁性棒管用鋼が知られている。また、特公平６−
４９９１６号公報のように、Ｃ≦０．０１％、Ｎ≦０．
０１％、Ｓｉ≦０．１０％、Ｍｎ≦０．１５％、Ｓ≦
０．０１５％、Ｃｒ：５〜１５％、Ａｌ：１．０〜１．
９％を含み、更にＣｒ，Ａｌをｌｏｇ10（％Ｃｒ）＋
０．８６１×（％Ａｌ）2/3 ≦１．９０…（１）、（％
Ｃｒ）＋２．８８×（％Ａｌ）≦１８．３…（２）の範
囲に規制し、残部鉄及び不可避不純物よりなることを特
徴とする耐食性軟磁性棒管用鋼が知られている。To solve the above problem, for example, as in Japanese Patent Publication No. Hei 6-10324, C + N <0.02
%, Si ≦ 3%, Mn ≦ 0.50%, Cr: 12-18
%, Al: 0.8 to less than 1.5%, Mo: 0.05 to
There is known a free-cutting corrosion-resistant soft magnetic rod steel, which is characterized by comprising 1.5%, Pb ≦ 0.040%, S ≦ 0.030%, the balance being iron and unavoidable impurities. In addition,
No. 49916, C ≦ 0.01%, N ≦ 0.
01%, Si ≦ 0.10%, Mn ≦ 0.15%, S ≦
0.015%, Cr: 5 to 15%, Al: 1.0 to 1.
9%, and Cr and Al in log 10 (% Cr) +
0.861 × (% Al) 2/3 ≦ 1.90 (1), (%
Cr) + 2.88 × (% Al) ≦ 18.3 (2) A corrosion-resistant soft magnetic steel for a rod-shaped tube is known, characterized in that the steel is composed of iron and unavoidable impurities.
【０００４】[0004]
【発明が解決しようとする課題】上述した特公平６−１
０３２４号公報および特公平６−４９９１６号公報にあ
っては、被削性を向上させるためにＳを添加すると、あ
る程度の切削加工は出来るが重切削は困難であり、しか
も磁気特性、耐食性が劣化する。また、Ｓの代替とし
て、Ｐｂの添加もなされているが、人体に悪影響を及ぼ
すため使用は制限される。The above-mentioned Tokuhei 6-1
In Japanese Patent Publication No. 0324 and Japanese Patent Publication No. 6-49916, when S is added to improve machinability, cutting can be performed to some extent, but heavy cutting is difficult, and magnetic properties and corrosion resistance are deteriorated. I do. Pb is also added as a substitute for S, but its use is restricted because it has a bad effect on the human body.
【０００５】[0005]
【課題を解決するための手段】上述したような問題を解
消するために、発明者らは鋭意開発を進めた結果、Ｓ：
０．０３〜０．３０％、Ｍｎ：０．１〜０．５％、Ｏ≦
０．０１％、Ｍｎ／Ｓ≦５に調整することにより、耐食
性、磁気特性を劣化させずに被削性を向上させる材料を
提供するものである。その発明の要旨とするところは、 （１）重量％で、Ｃ：０．０３％以下、Ｓｉ：０．３〜
３．０％、Ｍｎ：０．１〜０．５％、Ｃｒ：５．０〜２
０．０％、Ｓ：０．０３〜０．３％、Ａｌ：０．２〜
４．０％、Ｎ：０．０３％以下、Ｏ：０．０１％以下、
残部Ｆｅおよび不可避的不純物とからなり、Ｃ＋Ｎ≦
０．０５％、Ｍｎ／Ｓ≦５に成分調整したことを特徴と
する被削性に優れた耐食軟磁性材料。 （２）前記（１）記載の合金成分に、さらにＭｏ：０．
５〜２．０％、Ｃｕ：０．５〜１．５％、Ｔｉ：０．０
５〜０．５％の１種以上を添加したことを特徴とする被
削性に優れた耐食軟磁性材料にある。Means for Solving the Problems In order to solve the above-mentioned problems, the present inventors have made intensive developments, and as a result, S:
0.03 to 0.30%, Mn: 0.1 to 0.5%, O ≦
By adjusting to 0.01% and Mn / S ≦ 5, a material that improves machinability without deteriorating corrosion resistance and magnetic properties is provided. The gist of the invention is as follows: (1) By weight%, C: 0.03% or less, Si: 0.3 to
3.0%, Mn: 0.1-0.5%, Cr: 5.0-2
0.0%, S: 0.03 to 0.3%, Al: 0.2 to
4.0%, N: 0.03% or less, O: 0.01% or less,
The balance consists of Fe and unavoidable impurities, and C + N ≦
A corrosion-resistant soft magnetic material having excellent machinability, wherein the composition is adjusted to 0.05% and Mn / S ≦ 5. (2) In addition to the alloy components described in (1) above, Mo: 0.
5 to 2.0%, Cu: 0.5 to 1.5%, Ti: 0.0
A corrosion-resistant soft magnetic material excellent in machinability, characterized in that at least one of 5% to 0.5% is added.
【０００６】[0006]
【発明の実施の形態】以下、本発明である耐食軟磁性材
料の成分組成の限定理由について説明する。Ｃ，Ｎ：
０．０３％以下、Ｃ＋Ｎ≦０．０５％Ｃ，Ｎは、軟磁気
特性に悪影響を及ぼす炭化物、窒化物を形成し、あるい
は結晶中に固溶し結晶格子を歪ませ、磁性の劣化および
耐食性の劣化並びに硬度の著しい増大を招くため、各々
０．０３％以下とした。また、合計で０．０５％以下と
する。DESCRIPTION OF THE PREFERRED EMBODIMENTS The reasons for limiting the component composition of the corrosion-resistant soft magnetic material of the present invention will be described below. C, N:
0.03% or less, C + N ≦ 0.05% C and N form carbides and nitrides that adversely affect soft magnetic properties, or form solid solutions in crystals to distort the crystal lattice, deteriorating magnetism and corrosion resistance. In order to cause the deterioration of the hardness and the remarkable increase of the hardness, the content is 0.03% or less. Further, the total is set to 0.05% or less.
【０００７】Ｓｉ：０．３〜３．０％ Ｓｉは、脱酸剤として製鋼時に必要な元素であり、ま
た、固有抵抗および硬さを増加させるとされる。しか
し、３．０％を超えて含有させると靱性、被削性を劣化
させ、磁束密度も低下させるため、上限を３．０％とし
た。 Ｍｎ：０．１〜０．５％ Ｍｎは、一般に脱酸剤として有効な元素であるとともに
Ｓと結合しＭｎＳとなり、このＭｎＳが鋼中に分散する
ことにより、被削性を向上させる効果がある。しかし、
０．５％を超える添加は非磁性のオーステナイトを析出
させ、磁気特性を著しく劣化させるため、０．５０％以
下の範囲に規制する。[0007] Si: 0.3 to 3.0% Si is an element necessary for steelmaking as a deoxidizing agent, and is said to increase specific resistance and hardness. However, when the content exceeds 3.0%, toughness and machinability are deteriorated, and the magnetic flux density is also reduced. Therefore, the upper limit is set to 3.0%. Mn: 0.1 to 0.5% Mn is an element generally effective as a deoxidizing agent and combines with S to form MnS. This MnS is dispersed in steel, thereby improving machinability. is there. But,
If the addition exceeds 0.5%, nonmagnetic austenite is precipitated and the magnetic properties are remarkably deteriorated. Therefore, the addition is restricted to a range of 0.50% or less.
【０００８】Ｃｒ：５．０〜２０．０％ Ｃｒは、耐食性を高めるために効果的な元素であり、Ｃ
ｒＳを形成する元素でもある。しかし、Ｃｒの過度の添
加は磁束密度の減少をもたらし、冷間加工性を劣化させ
るため上限を２０．０％とする。しかしながら、Ｃｒ添
加量が５．０％未満になると、本発明の目的用途のため
に耐食性が不十分になるため下限を５．０％とし、その
範囲を５．０〜２０．０％とする。[0008] Cr: 5.0 to 20.0% Cr is an element effective for improving corrosion resistance.
It is also an element that forms rS. However, excessive addition of Cr results in a decrease in magnetic flux density and deteriorates cold workability, so the upper limit is made 20.0%. However, if the Cr content is less than 5.0%, the corrosion resistance becomes insufficient for the purpose of the present invention, so the lower limit is made 5.0%, and the range is made 5.0 to 20.0%. .
【０００９】Ｓ：０．０３〜０．３％ Ｓは、Ｍｎと結合してＭｎＳとなり被削性を向上させる
効果がある。しかしながら、Ｓ添加量が０．０３％未満
であるとその効果が小さく、一方０．３％を超える添加
は磁気特性、耐食性および靱性を著しく劣化させるた
め、Ｓ添加量を０．０３〜０．３％とした。 Ａｌ：０．２〜４．０％ Ａｌは、脱酸剤として有効な元素であるとともに固有抵
抗増加、耐食性改善、磁気特性改善に効果的な元素であ
る。しかし、過度のＡｌ添加は製造性を悪化させ、磁束
密度を低下させるのでその上限を４．０％とした。S: 0.03-0.3% S combines with Mn to form MnS, which has the effect of improving machinability. However, if the amount of S is less than 0.03%, the effect is small. On the other hand, if the amount exceeds 0.3%, the magnetic properties, corrosion resistance and toughness are significantly deteriorated. 3%. Al: 0.2 to 4.0% Al is an element effective as a deoxidizing agent and an element effective for increasing specific resistance, improving corrosion resistance, and improving magnetic properties. However, excessive addition of Al deteriorates the manufacturability and lowers the magnetic flux density. Therefore, the upper limit is set to 4.0%.
【００１０】Ｏ：０．０１％以下 Ｏは、ＭｎＳ、ＣｒＳを微細に分布させるために、０．
０１％以下とする。 Ｍｎ／Ｓ≦５ Ｍｎ／Ｓを５以下にすることにより、ＭｎＳの他にもＣ
ｒＳが形成され、このＣｒＳが比較的小さく分布するこ
とが判った。しかも上述のＯが０．０１％以下でそれが
顕著に分布する。従って、Ｍｎ／Ｓを５以下とする。O: 0.01% or less O is used in an amount of 0.1% in order to finely distribute MnS and CrS.
01% or less. Mn / S ≦ 5 By setting Mn / S to 5 or less, in addition to MnS, C
It was found that rS was formed and this CrS was distributed relatively small. Moreover, when the above-mentioned O is 0.01% or less, it is remarkably distributed. Therefore, Mn / S is set to 5 or less.
【００１１】さらに必要に応じてＭｏ，Ｃｕ，Ｔｉの１
種以上 Ｍｏは、耐食性改善に極めて効果的な元素である。従っ
て、Ｍｏを少量添加することにより更に耐食性の改善を
図った。よってＭｏ添加量は０．５〜２．０％とする。
Ｃｕは、耐食性向上に効果的な元素であるため添加す
る。しかしながら、Ｃｕの過剰な添加は磁束密度の低下
をもたらし、工業的には有効とは言えないため、その上
限を１．５％とし、その範囲を０．５〜１．５％とす
る。Ｔｉは、結晶粒の微細化によって、靱性を向上させ
る効果を有し、この効果を得るために少なくとも０．０
５％添加することが必要である。０．５％を超えての添
加は、磁気特性に悪影響を及ぼすため、上限を０．５％
とする。Further, if necessary, one of Mo, Cu, Ti
Mo is an element that is extremely effective in improving corrosion resistance. Therefore, the corrosion resistance was further improved by adding a small amount of Mo. Therefore, the amount of Mo added is set to 0.5 to 2.0%.
Cu is added because it is an element effective for improving corrosion resistance. However, excessive addition of Cu causes a decrease in magnetic flux density and is not industrially effective. Therefore, the upper limit is set to 1.5%, and the range is set to 0.5 to 1.5%. Ti has an effect of improving toughness by refining crystal grains, and at least 0.0
It is necessary to add 5%. Addition exceeding 0.5% adversely affects magnetic properties, so the upper limit is 0.5%.
And
【００１２】図１は、本発明に係るＭｎ／Ｓと腐食減量
との関係を示す図である。腐食減量は、５％硝酸中（２
５℃、２４ｈ）での試験結果である。この図に示すよう
に、Ｍｎ／Ｓが５以下において腐食減量の小さいことが
判る。また、図２は、本発明に係るＭｎ／Ｓと磁気特性
である保磁力Ｈｃとの関係を示す図であり、この図から
判るように、Ｍｎ／Ｓ≦５において、磁気特性である保
磁力Ｈｃが小さくなっている。さらに、図３は、本発明
に係るＳと被削性であるドリル穿孔期間との関係を示す
図である。この図から被削性は、Ｓ量が０．０３〜０．
３％の範囲において優れている。このように図１および
図２より、Ｍｎ／Ｓが５以下において、耐食性、磁気特
性に優れていることを示しており、図３よりＳ量は０．
０３〜０．３％の範囲において被削性の良好であること
が判る。FIG. 1 is a diagram showing the relationship between Mn / S and corrosion loss according to the present invention. Corrosion weight loss in 5% nitric acid (2
5 ° C., 24 h). As shown in this figure, it is understood that the corrosion weight loss is small when Mn / S is 5 or less. FIG. 2 is a diagram showing the relationship between Mn / S according to the present invention and coercive force Hc, which is a magnetic characteristic. As can be seen from FIG. 2, coercive force, which is a magnetic characteristic when Mn / S ≦ 5, is obtained. Hc is small. Further, FIG. 3 is a diagram showing a relationship between S according to the present invention and a drilling period which is machinability. From this figure, the machinability is such that the S amount is 0.03 to 0.3.
Excellent in the range of 3%. As described above, FIGS. 1 and 2 show that when Mn / S is 5 or less, excellent corrosion resistance and magnetic properties are obtained.
It can be seen that the machinability is good in the range of 03 to 0.3%.
【００１３】[0013]
【実施例】表１に本発明鋼および比較鋼の化学成分組成
を示す。これらは、真空誘導炉にて溶製し、５０ｋｇ鋼
塊に鋳造し、φ３０ｍｍに鍛伸後、焼鈍を施し、試験片
を作製し、各測定にあてた。その結果を表２に示す。磁
気特性は、リング状試験片を作製し、さらに真空中で８
５０℃×４ｈｒ保持の磁気焼鈍を施した後に直流Ｂ−Ｈ
トレーサを用いて磁束密度Ｂ25および保磁力Ｈｃの測定
を行った。磁束密度（Ｂ25）は、１２ＫＧ（Ｋガウス）
以上を○、未満を×、保磁力（Ｈｃ）は、１．５ｅ（エ
ルステッド）以下を○、超えを×とし、評価した。被削
性はＳＫＨ５１製のドリル（直径５ｍｍ）を用い、推力
４２．２ｋｇ、回転数９００ｒｐｍで深さ１０ｍｍの穿
孔に要する時間を測定し、１０秒を超えるものを×、１
０秒以内のものを○とした。耐食性は直径１２ｍｍ長さ
２１ｍｍの試験片を用いてサイクル湿潤試験（２０℃、
９０％ＲＨ、１．５ｈｒ保持→７０℃、９０％ＲＨ、
４．５４ｈｒ保持を１サイクルとして２０サイクルの試
験）を行い、下記基準で比較した。 ○：発錆の面積率が５％未満で耐食性が良好であるもの ×：発錆の面積率が５％以上で耐食性が不良であるものEXAMPLES Table 1 shows the chemical composition of the steel of the present invention and the comparative steel. These were melted in a vacuum induction furnace, cast into a 50 kg steel ingot, forged to φ30 mm, and then annealed to prepare test pieces, which were used for each measurement. Table 2 shows the results. The magnetic properties were measured by preparing a ring-shaped test piece,
DC BH after magnetic annealing at 50 ° C. × 4 hours
The magnetic flux density B 25 and the coercive force Hc were measured using a tracer. Magnetic flux density (B 25 ) is 12KG (K Gauss)
The above was evaluated as ○, less than x, and the coercive force (Hc) was evaluated as を when 1.5e (Oersted) or less, and as x when exceeding. The machinability was measured using a SKH51 drill (diameter: 5 mm) and the time required for drilling a hole with a depth of 10 mm at a thrust of 42.2 kg at a rotation speed of 900 rpm.
A sample within 0 seconds was rated as ○. The corrosion resistance was measured using a cycle wet test (20 ° C,
90% RH, hold for 1.5 hr → 70 ° C., 90% RH,
The test was performed for 20 cycles with 4.54 hr holding as one cycle, and comparison was made based on the following criteria. ：: Corrosion resistance of less than 5% and good corrosion resistance ×: Corrosion resistance of 5% or more and poor corrosion resistance
【００１４】[0014]
【表１】 [Table 1]
【００１５】表１に示すように、Ｎｏ１〜Ｎｏ４は実施
例であり、Ｎｏ５〜Ｎｏ７は比較例である。Ｎｏ５はＭ
ｎ／Ｓ比は高いため、耐食性、磁性特性が悪く、また、
Ｎｏ６は、Ｓ量が少なく被削性が悪い。さらに、Ｎｏ７
は、Ｓ量が多く、磁性、耐食性が悪いことが判る。この
ように、Ｍｎ／Ｓ、ＭｎおよびＳの制限により、ＭｎＳ
の他にもＣｒＳを形成させ、さらにＯ量を適切に調整す
ることで、それらの介在物を微細に分散させ、大きな介
在物の存在による耐食性、磁気特性が劣化するのを微細
に分散させることで防止し、しかもその条件下でＳを添
加し、被削性の向上を図ることが出来るものである。As shown in Table 1, No. 1 to No. 4 are Examples, and No. 5 to No. 7 are Comparative Examples. No5 is M
Since the n / S ratio is high, corrosion resistance and magnetic properties are poor.
No. 6 has a low S content and poor machinability. Furthermore, No7
Indicates that the S content is large and the magnetism and corrosion resistance are poor. Thus, due to the limitations of Mn / S, Mn and S, MnS
In addition, by forming CrS and adjusting the amount of O appropriately, these inclusions are finely dispersed, and the deterioration of corrosion resistance and magnetic properties due to the presence of large inclusions is finely dispersed. And under these conditions, S is added to improve the machinability.
【００１６】[0016]
【発明の効果】以上述べたように、本発明により、重度
の切削にも対応できる耐食性の優れた軟磁性材料を提供
することが可能となった。As described above, according to the present invention, it has become possible to provide a soft magnetic material having excellent corrosion resistance and capable of coping with heavy cutting.
【図１】本発明に係るＭｎ／Ｓと腐食減量との関係を示
す図である。FIG. 1 is a diagram showing the relationship between Mn / S and corrosion weight loss according to the present invention.
【図２】本発明に係るＭｎ／Ｓと磁気特性である保磁力
Ｈｃとの関係を示す図である。FIG. 2 is a diagram showing a relationship between Mn / S and a coercive force Hc as a magnetic characteristic according to the present invention.
【図３】本発明に係るＳと被削性であるドリル穿孔期間
との関係を示す図である。FIG. 3 is a diagram showing a relationship between S according to the present invention and a drilling period which is machinability.
Claims (2)
からなり、Ｃ＋Ｎ≦０．０５％、Ｍｎ／Ｓ≦５に成分調
整したことを特徴とする被削性に優れた耐食軟磁性材
料。C: 0.03% or less; Si: 0.3 to 3.0%; Mn: 0.1 to 0.5%; Cr: 5.0 to 20.0%; S: 0.03 to 0.3%, Al: 0.2 to 4.0%, N: 0.03% or less, O: 0.01% or less, balance Fe and unavoidable impurities, C + N ≦ A corrosion-resistant soft magnetic material having excellent machinability, wherein the composition is adjusted to 0.05% and Mn / S ≦ 5.
ｏ：０．５〜２．０％、Ｃｕ：０．５〜１．５％、Ｔ
ｉ：０．０５〜０．５％の１種以上を添加したことを特
徴とする被削性に優れた耐食軟磁性材料。2. The alloy according to claim 1, further comprising M
o: 0.5 to 2.0%, Cu: 0.5 to 1.5%, T
i: Corrosion-resistant soft magnetic material excellent in machinability, characterized by adding one or more of 0.05 to 0.5%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30399799A JP2001123251A (en) | 1999-10-26 | 1999-10-26 | Corrosion resistant soft magnetic material excellent in machinability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30399799A JP2001123251A (en) | 1999-10-26 | 1999-10-26 | Corrosion resistant soft magnetic material excellent in machinability |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001123251A true JP2001123251A (en) | 2001-05-08 |
Family
ID=17927818
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP30399799A Withdrawn JP2001123251A (en) | 1999-10-26 | 1999-10-26 | Corrosion resistant soft magnetic material excellent in machinability |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001123251A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007084432A1 (en) * | 2006-01-18 | 2007-07-26 | Crs Holdings, Inc. | Corrosion-resistant, free-machining, magnetic stainless steel |
| WO2017104202A1 (en) * | 2015-12-18 | 2017-06-22 | 大同特殊鋼株式会社 | Ferrite-based free-machining stainless steel and method for producing same |
-
1999
- 1999-10-26 JP JP30399799A patent/JP2001123251A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007084432A1 (en) * | 2006-01-18 | 2007-07-26 | Crs Holdings, Inc. | Corrosion-resistant, free-machining, magnetic stainless steel |
| WO2017104202A1 (en) * | 2015-12-18 | 2017-06-22 | 大同特殊鋼株式会社 | Ferrite-based free-machining stainless steel and method for producing same |
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