JPH04337051A - Ni-cr-fe soft-magnetic alloy excellent in blankability - Google Patents
Ni-cr-fe soft-magnetic alloy excellent in blankabilityInfo
- Publication number
- JPH04337051A JPH04337051A JP3139801A JP13980191A JPH04337051A JP H04337051 A JPH04337051 A JP H04337051A JP 3139801 A JP3139801 A JP 3139801A JP 13980191 A JP13980191 A JP 13980191A JP H04337051 A JPH04337051 A JP H04337051A
- Authority
- JP
- Japan
- Prior art keywords
- weight
- content
- magnetic alloy
- punching
- alloy
- 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
- 229910001004 magnetic alloy Inorganic materials 0.000 title claims abstract description 16
- 229910019589 Cr—Fe Inorganic materials 0.000 claims abstract description 20
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 8
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 7
- 230000001105 regulatory effect Effects 0.000 claims abstract description 5
- 238000004080 punching Methods 0.000 claims description 23
- 229910018487 Ni—Cr Inorganic materials 0.000 claims 1
- 239000012535 impurity Substances 0.000 abstract description 8
- 229910052748 manganese Inorganic materials 0.000 abstract description 6
- 230000001276 controlling effect Effects 0.000 abstract description 3
- 229910045601 alloy Inorganic materials 0.000 description 19
- 239000000956 alloy Substances 0.000 description 19
- 230000035699 permeability Effects 0.000 description 16
- 239000000463 material Substances 0.000 description 6
- 239000011159 matrix material Substances 0.000 description 5
- 229910003271 Ni-Fe Inorganic materials 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 238000005275 alloying Methods 0.000 description 2
- 238000000137 annealing Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000011162 core material Substances 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910000889 permalloy Inorganic materials 0.000 description 2
- 229910000640 Fe alloy Inorganic materials 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003009 desulfurizing effect Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 150000001247 metal acetylides Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- -1 oxides Chemical class 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 150000003568 thioethers Chemical class 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Landscapes
- Soft Magnetic Materials (AREA)
Abstract
Description
【０００１】0001
【産業上の利用分野】本発明は、高透磁率が要求される
磁気シールド部材，各種鉄心等に使用され、プレス加工
時の打抜き性が良好なＮｉ−Ｃｒ−Ｆｅ系軟質磁性合金
に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a Ni-Cr-Fe based soft magnetic alloy that is used for magnetic shield members, various iron cores, etc. that require high magnetic permeability, and has good punchability during press working.
【０００２】0002
【従来の技術】Ｎｉ−Ｃｒ−Ｆｅ系軟質磁性合金は、特
願平１−２２７４４５号，特願平２−７８２１５号でも
説明されているように、Ｎｉ−Ｆｅ系軟質磁性合金とし
て代表的なものである４５％パーマロイ（ＪＩＳ−ＰＢ
）よりも高く、Ｍｏ，Ｃｕ等を含有する８０％Ｎｉパー
マロイ（ＪＩＳ−ＰＣ）に匹敵する磁気特性を呈する。
しかも、Ｎｉを多量に含有しないことから安価な材料で
ある。この長所を活かして、磁気ヘッドのケース材やカ
バー材等の磁気シールド部材，ステーター材やコア材等
の各種鉄心材料として広く使用されるようになってきて
いる。[Prior Art] Ni-Cr-Fe based soft magnetic alloy is a typical Ni-Fe based soft magnetic alloy as explained in Japanese Patent Application No. 1-227445 and Japanese Patent Application No. 2-78215. 45% permalloy (JIS-PB
) and exhibits magnetic properties comparable to 80% Ni permalloy (JIS-PC) containing Mo, Cu, etc. Moreover, it is an inexpensive material because it does not contain a large amount of Ni. Taking advantage of this advantage, it has come to be widely used as magnetic shielding members such as case materials and cover materials of magnetic heads, and various iron core materials such as stator materials and core materials.
【０００３】しかし、Ｎｉ−Ｃｒ−Ｆｅ系合金をプレス
加工等による打抜きを行うとき、靭性が高い材質である
ことからバリ等が発生し易い。バリ発生等の欠陥は、特
に高速で精密部品を連続的に打ち抜く作業にあっては大
きな問題となり、高精度の打抜き作業を迅速に行う上で
の支障となっている。However, when punching a Ni-Cr-Fe alloy by press working or the like, burrs are likely to occur because the material has high toughness. Defects such as the occurrence of burrs become a big problem, especially in operations where precision parts are continuously punched out at high speeds, and are a hindrance to quickly performing high-precision punching operations.
【０００４】ところで、Ｎｉ−Ｆｅ系合金の打抜き性を
向上させることに関しては、数μｍ程度のＭｎ，Ｓ系介
在物をマトリックス中に微細に且つ均一に分散させるこ
とが知られている。たとえば、特公昭６４−１１０９４
号公報では、０．０５〜１．００重量％のＭｎ及び０．
００３〜０．０２５重量％のＳを含有させると共に、Ｍ
ｎ，Ｓｉ，Ａｌ，Ｚｒ，Ｃａ，Ｍｇ，稀土類元素等の窒
化物，炭化物，酸化物，硫化物等の非金属介在物の大き
さを特定することによって、Ｎｉ−Ｆｅ系合金の打抜き
性及び切断加工性を向上させている。By the way, in order to improve the punchability of Ni--Fe alloys, it is known that Mn, S-based inclusions of several micrometers are finely and uniformly dispersed in the matrix. For example, Tokuko Sho 64-11094
In the publication, 0.05 to 1.00% by weight of Mn and 0.05% to 1.00% by weight of Mn and 0.05% to 1.00% by weight of Mn and
003 to 0.025% by weight of S and M
By specifying the size of nonmetallic inclusions such as nitrides, carbides, oxides, and sulfides of n, Si, Al, Zr, Ca, Mg, and rare earth elements, we can improve the punchability of Ni-Fe alloys. and improved cutting workability.
【０００５】[0005]
【発明が解決しようとする課題】Ｍｎ，Ｓ系介在物の調
整によって打抜き性を改善する方法をＮｉ−Ｃｒ−Ｆｅ
系軟質磁性合金に適用すると、打抜き性の向上はみられ
るものの、磁気特性が大きく低下する。しかも、Ｍｎ，
Ｓ系介在物をマトリックスに分散させるため、Ｓを合金
成分として添加する必要がある。添加されたＳは、粒界
に偏析し易く、合金の熱間加工性や磁気特性を著しく低
下させる。特に、不純物含有量の如何による特性劣化は
、Ｎｉ−Ｆｅ系合金に比較しＮｉ−Ｃｒ−Ｆｅ系合金の
場合に大きく現れる。[Problems to be Solved by the Invention] A method for improving the punching property of Ni-Cr-Fe by adjusting Mn, S-based inclusions is proposed.
When applied to soft magnetic alloys, the punching properties are improved, but the magnetic properties are significantly degraded. Moreover, Mn,
In order to disperse S-based inclusions in the matrix, it is necessary to add S as an alloy component. Added S tends to segregate at grain boundaries and significantly reduces the hot workability and magnetic properties of the alloy. In particular, the deterioration of characteristics depending on the impurity content appears more greatly in the case of Ni-Cr-Fe alloys than in Ni-Fe alloys.
【０００６】この点に関連し、本発明者等はＳ，Ｂ，Ｏ
等の不純物含有量を規制することによって磁気特性の向
上を図ったＮｉ−Ｃｒ−Ｆｅ系軟質磁性合金を開発し、
特願平２−７８２１５号として出願している。すなわち
、Ｎｉ−Ｃｒ−Ｆｅ系合金では、不純物を低減させるこ
とにより磁気特性が向上する。しかし、Ｍｎ，Ｓ系介在
物を分散させることは、これに逆行するものである。[0006] In this regard, the present inventors have proposed that S, B, O
We have developed a Ni-Cr-Fe based soft magnetic alloy with improved magnetic properties by controlling the content of impurities such as
It has been filed as Japanese Patent Application No. 2-78215. That is, in the Ni-Cr-Fe alloy, magnetic properties are improved by reducing impurities. However, dispersing Mn,S-based inclusions goes against this.
【０００７】このようなことから、磁気特性の劣化を伴
うＭｎ，Ｓ系介在物の調整を行うことなく、他の手段で
Ｎｉ−Ｃｒ−Ｆｅ系軟質磁性合金の打ち抜き加工性を改
善することが望まれている。[0007] For this reason, it is possible to improve the punching workability of Ni-Cr-Fe-based soft magnetic alloys by other means without adjusting Mn, S-based inclusions that cause deterioration of magnetic properties. desired.
【０００８】本発明は、この要求に応えるべく案出され
たものであり、Ｃａの添加及びＳ，Ｏ，Ｂ等の不純物含
有量の規制により、最大透磁率μｍ の値が１００，０
００以上を満足し、且つ打抜き性に優れたＮｉ−Ｃｒ−
Ｆｅ系軟質磁性合金を提供することを目的とする。The present invention was devised to meet this demand, and by adding Ca and controlling the content of impurities such as S, O, and B, the maximum magnetic permeability μm can be increased to 100.0 μm.
Ni-Cr- which satisfies 00 or more and has excellent punching properties
The purpose is to provide a Fe-based soft magnetic alloy.
【０００９】[0009]
【課題を解決するための手段】本発明のＮｉ−Ｃｒ−Ｆ
ｅ系軟質磁性合金は、その目的を達成するため、３×（
Ｎｉ％）−５×（Ｃｒ％）≦８０の条件で３５〜４０重
量％のＮｉ及び５〜１４重量％のＣｒを含有するＮｉ−
Ｃｒ−Ｆｅ系合金、或いは５０≦（Ｎｉ％）＋４×（Ｃ
ｒ％）≦６０の条件で４０〜５２重量％のＮｉ及び０．
５〜５重量％のＣｒを含有するＮｉ−Ｃｒ−Ｆｅ系合金
において、０．００２０〜０．０１５０重量％のＣａを
含有させ、Ｓ≦０．００３０重量％，Ｏ≦０．００５０
重量％，Ｂ≦０．００５０重量％で且つＳ＋Ｂ＋Ｏ≦０
．００８０重量％を満足するようにＳ，Ｏ及びＢの含有
量を規制したことを特徴とする。[Means for solving the problems] Ni-Cr-F of the present invention
In order to achieve this purpose, the e-based soft magnetic alloy is
Ni- containing 35 to 40 wt% Ni and 5 to 14 wt% Cr under the condition of Ni%)-5 x (Cr%)≦80
Cr-Fe alloy or 50≦(Ni%)+4×(C
r%)≦60 and 40 to 52% by weight of Ni and 0.
In a Ni-Cr-Fe alloy containing 5 to 5% by weight of Cr, containing 0.0020 to 0.0150% by weight of Ca, S≦0.0030% by weight, O≦0.0050
weight%, B≦0.0050 weight% and S+B+O≦0
．． It is characterized in that the contents of S, O and B are regulated so as to satisfy 0.080% by weight.
【００１０】なお、これらのＮｉ−Ｃｒ−Ｆｅ系合金に
おいては、脱酸剤として使用されるＳｉ，Ａｌや脱酸脱
硫剤として使用されるＭｎ等を総量で２重量％以下含有
することができる。[0010] These Ni-Cr-Fe alloys can contain Si, Al, which is used as a deoxidizing agent, and Mn, which is used as a deoxidizing and desulfurizing agent, in a total amount of 2% by weight or less. .
【００１１】[0011]
【作 用】本発明者等は、Ｎｉ−Ｃｒ−Ｆｅ系軟質磁
性合金の打抜き性に与えるＣａの影響について研究を重
ねた。その結果、０．００２０〜０．０１５０重量％の
Ｃａを含有させ、且つＳ含有量，Ｏ含有量及びＢ含有量
をそれぞれＳ≦０．００３０重量％，Ｏ≦０．００５０
重量％及びＢ≦０．００５０重量％に規制するとき、打
抜き性が飛躍的に向上することを見出した。しかも、Ｓ
，Ｏ，Ｂ含有量の規制と相俟つて、最大透磁率μｍ が
１００，０００以上の高い値を示すことを見出した。[Function] The present inventors have conducted extensive research on the influence of Ca on the punchability of Ni-Cr-Fe based soft magnetic alloys. As a result, 0.0020 to 0.0150% by weight of Ca was contained, and the S content, O content, and B content were respectively S≦0.0030% by weight and O≦0.0050.
It has been found that when the weight % and B are restricted to 0.0050 weight %, the punching property is dramatically improved. Moreover, S
, O, and B contents, the maximum magnetic permeability μm shows a high value of 100,000 or more.
【００１２】以下、本発明で規定した合金成分の含有量
について説明する。
Ｎｉ：透磁率を向上させるために、必要な合金元素であ
る。Ｎｉ含有量が３５重量％未満では、最大透磁率μｍ
１００，０００以上の高い透磁率が得られない。また
、Ｎｉの含有量が５２重量％を超えるものにあっては、
合金のコストを上げることは勿論、飽和磁束密度及び最
大透磁率が低下する傾向を示す。このようなことから、
本発明においては、Ｎｉの含有量を３５〜５２重量％の
範囲に設定した。[0012] The contents of the alloy components specified in the present invention will be explained below. Ni: An alloying element necessary to improve magnetic permeability. When the Ni content is less than 35% by weight, the maximum magnetic permeability μm
A high magnetic permeability of 100,000 or more cannot be obtained. In addition, if the Ni content exceeds 52% by weight,
Not only does this increase the cost of the alloy, but it also tends to decrease the saturation magnetic flux density and maximum magnetic permeability. From such a thing,
In the present invention, the Ni content is set in the range of 35 to 52% by weight.
【００１３】Ｃｒ：透磁率を向上させる上で必要な合金
元素である。最大透磁率μｍ を１００，０００以上と
するためには、Ｎｉが３５〜４０重量％の範囲では５〜
１４重量％のＣｒを必要とし、且つＣｒとＮｉとの間に
３×（Ｎｉ％）−５×（Ｃｒ％）≦８０の関係を維持す
る。また、Ｎｉが４０〜５２重量％の範囲では０．５〜
５重量％のＣｒを必要とし、且つＣｒとＮｉとの間に５
≦（Ｎｉ％）＋４×（６０の関係を維持させる。Cr: An alloying element necessary for improving magnetic permeability. In order to make the maximum magnetic permeability μm 100,000 or more, when Ni is in the range of 35 to 40% by weight, it is necessary to
14% by weight of Cr is required, and the relationship between Cr and Ni is maintained as 3×(Ni%)−5×(Cr%)≦80. In addition, when Ni is in the range of 40 to 52% by weight, it is 0.5 to 52% by weight.
5% by weight of Cr is required, and 5% by weight is required between Cr and Ni.
The relationship of ≦(Ni%)+4×(60) is maintained.
【００１４】Ｃａ：Ｎｉ−Ｃｒ−Ｆｅ系合金の打抜き性
を改善する上で最も重要な合金成分である。Ｃａの添加
によって打抜き性が改善される理由は、マトリックス中
にＣａが均一に固溶することにより、マトリックスの靭
性が低下することに由来するものと推察される。すなわ
ち、Ｃａの添加により、素材が脆くなり、打抜き破面生
成時の破面近傍の塑性流動がほとんど起こらなくなり、
バリの発生が抑制されると推察される。このような効果
を得るためには、図１に示すように、０．００２０重量
％以上のＣａ含有量が必要であることが実験的に確かめ
られた。しかし、Ｃａ含有量が０．０１５０重量％を超
えるとき、打抜き性に与える作用が飽和すると共に、最
大透磁率μｍ が１００，０００を下回る。そのため、
Ｃａ含有量は、０．００２０〜０．０１５０重量％の範
囲に規定した。Ca: This is the most important alloy component for improving the punchability of Ni-Cr-Fe alloys. The reason why the punchability is improved by adding Ca is presumed to be that the toughness of the matrix decreases due to uniform solid solution of Ca in the matrix. In other words, the addition of Ca makes the material brittle, and almost no plastic flow occurs near the fracture surface when the punching fracture surface is generated.
It is inferred that the occurrence of burrs is suppressed. It was experimentally confirmed that in order to obtain such an effect, a Ca content of 0.0020% by weight or more is required, as shown in FIG. However, when the Ca content exceeds 0.0150% by weight, the effect on punchability is saturated and the maximum magnetic permeability μm is less than 100,000. Therefore,
The Ca content was defined in the range of 0.0020 to 0.0150% by weight.
【００１５】Ｓ，Ｏ，Ｂ：不純物元素であるＳ，Ｏ，Ｂ
は、可能な限り低減させることが好ましい。Ｓは、Ｍｎ
，Ｓ系介在物を形成してマトリックスに分散し、最大透
磁率μｍ を低下させる。また、Ｏ及びＢは、磁気焼鈍
時に結晶粒の成長及び配向性を阻害し、最大透磁率μｍ
を低下させる。これら不純物による悪影響を無くすた
め、Ｓ≦０．００３０重量％，Ｏ≦０．００５０重量％
及びＢ≦０．００５０重量％で且つＳ＋Ｏ＋Ｂ≦０．０
０８０重量％となるように、Ｓ，Ｏ及びＢの含有量を規
制することが必要である。[0015] S, O, B: impurity elements S, O, B
is preferably reduced as much as possible. S is Mn
, S-based inclusions are formed and dispersed in the matrix, reducing the maximum magnetic permeability μm. In addition, O and B inhibit the growth and orientation of crystal grains during magnetic annealing, and the maximum magnetic permeability is μm.
decrease. In order to eliminate the adverse effects of these impurities, S≦0.0030% by weight, O≦0.0050% by weight.
and B≦0.0050% by weight, and S+O+B≦0.0
It is necessary to control the contents of S, O, and B so that the content becomes 0.80% by weight.
【００１６】[0016]
【実施例】以下、実施例によって、本発明を具体的に説
明する。表１及び表２に示した組成を持つ合金を真空溶
解し、得られたインゴットに熱間圧延及び冷間圧延を施
して板厚０．５ｍｍの冷延板を製造した。[Examples] The present invention will be specifically explained below with reference to Examples. Alloys having the compositions shown in Tables 1 and 2 were melted in vacuum, and the resulting ingots were hot-rolled and cold-rolled to produce cold-rolled plates with a thickness of 0.5 mm.
【００１７】この冷延板から、外径４５ｍｍ，内径３３
ｍｍの環状試験片を切り出した。そして、各試験片を１
１００℃の水素雰囲気中で１時間加熱する磁気焼鈍を行
った後、ＪＩＳ Ｃ２５３１に基づいて各試験片の最
大透磁率μｍを測定した。打抜き性は、次のようにして
評価した。すなわち、図２に示すように、試験片１を打
抜き金型２の上に載置し、上方からポンチ３で試験片１
を打ち抜いた。打抜き後、図３に示すように、試験片１
の打抜き部断面における剪断部４の長さ，破断部５の長
さ及びバリ６の有無を調査した。調査結果を、表３及び
表４に示す。[0017] From this cold-rolled sheet, an outer diameter of 45 mm and an inner diameter of 33 mm were obtained.
A circular test piece of mm was cut out. Then, each test piece was
After performing magnetic annealing by heating in a hydrogen atmosphere at 100° C. for 1 hour, the maximum magnetic permeability μm of each test piece was measured based on JIS C2531. Punching property was evaluated as follows. That is, as shown in FIG.
punched out. After punching, as shown in Figure 3, test piece 1
The length of the sheared part 4, the length of the broken part 5, and the presence or absence of burrs 6 in the cross section of the punched part were investigated. The survey results are shown in Tables 3 and 4.
【００１８】[0018]
【表１】[Table 1]
【００１９】[0019]
【表２】[Table 2]
【００２０】[0020]
【表３】[Table 3]
【００２１】[0021]
【表４】[Table 4]
【００２２】表３及び表４から明らかなように、本発明
例１〜９及び２１〜２７の試験片にあっては、打抜き時
にバリ等の発生がなく、良好な打抜き性を示している。
また、図１は、３８％Ｎｉ−８％Ｃｒ−Ｆｅ系合金に対
して、同様な方法によってＣａ含有量が打抜き加工性に
与える影響を調べた結果を表したグラフである。表３，
４及び図１から、Ｎｉ−Ｆｅ系合金及びＮｉ−Ｃｒ−Ｆ
ｅ系合金の打抜き加工性改善には、０．００２０重量％
以上のＣａ含有が必要であることが判る。As is clear from Tables 3 and 4, the test pieces of Examples 1 to 9 and 21 to 27 of the present invention did not generate burrs or the like during punching, and exhibited good punching properties. Further, FIG. 1 is a graph showing the results of investigating the influence of Ca content on punching workability using a similar method for a 38% Ni-8% Cr-Fe alloy. Table 3,
4 and FIG. 1, it can be seen that Ni-Fe alloy and Ni-Cr-F
To improve the punching workability of e-based alloys, 0.0020% by weight
It can be seen that the above Ca content is necessary.
【００２３】これに対して、Ｃａ含有量が０．００２０
重量％未満の比較例１０〜１４，１８，３０，３１及び
３４の試験片では、バリの発生がみられた。また、Ｃａ
含有量が０．０１５０重量％を超える比較例１７及び３
３の試験片にあっては、打抜き加工性に関する限り本発
明例の試験片と同様な傾向を示したが、熱間圧延したと
きの形状が不規則になる等の熱間加工性の劣化がみられ
た。更に、Ｓ，Ｏ，Ｂ，Ｓ＋Ｏ＋Ｂの何れかが本発明で
規定した範囲を外れる比較例１４，１５，１８，２９及
び３４の試験片では、Ｎｉ及びＣｒ含有量が本発明で規
定した範囲にあっても、表３或いは表４に示すように低
い最大透磁率μｍ をもっていた。On the other hand, when the Ca content is 0.0020
In the test pieces of Comparative Examples 10 to 14, 18, 30, 31, and 34 containing less than % by weight, occurrence of burrs was observed. Also, Ca
Comparative Examples 17 and 3 with a content exceeding 0.0150% by weight
The test piece No. 3 showed the same tendency as the test piece of the invention example as far as punching workability was concerned, but the hot workability deteriorated, such as the shape becoming irregular when hot rolled. It was seen. Furthermore, in the test pieces of Comparative Examples 14, 15, 18, 29, and 34 in which any of S, O, B, and S+O+B was outside the range specified by the present invention, the Ni and Cr contents were within the range specified by the present invention. Even if there were, as shown in Table 3 or 4, the maximum magnetic permeability μm was low.
【００２４】[0024]
【発明の効果】以上に説明したように、本発明において
は、０．００２０〜０．０１５０重量％のＣａを含有さ
せると共に、Ｓ，Ｏ，Ｂ含有量及びＳ＋Ｏ＋Ｂを規制す
ることにより、Ｎｉ−Ｃｒ−Ｆｅ系合金の打抜き加工性
を改善している。この打抜き加工性改善は、特公昭６４
−１１０９４号公報記載のような磁気特性等に悪影響を
及ぼすＭｎ，Ｓ系介在物の調整によるものではないため
、最大透磁率μｍ が１００，０００以上で打ち抜き加
工性に優れたＮｉ−Ｃｒ−Ｆｅ系軟質磁性合金が得られ
る。Effects of the Invention As explained above, in the present invention, Ni- The punching workability of Cr-Fe alloys is improved. This improvement in punching workability was achieved in the Tokuko Sho 64
Ni-Cr-Fe, which has a maximum magnetic permeability of 100,000 μm or more and excellent punching workability, is not due to the adjustment of Mn and S-based inclusions that adversely affect magnetic properties etc. as described in Publication No. 11094. A soft magnetic alloy is obtained.
【図１】 Ｃａ含有量が最大透磁率μｍ 及び打抜き
加工性に与える影響を示したグラフ[Figure 1] Graph showing the influence of Ca content on maximum magnetic permeability μm and punching workability
【図２】 本発明実施例で打抜き試験に使用した打抜
き金型及びポンチを示す斜視図[Figure 2] A perspective view showing the punching die and punch used in the punching test in the example of the present invention
【図３】 同じく打抜かれた後の試験片の打抜き部分
を示した断面図[Figure 3] Cross-sectional view showing the punched part of the test piece after being similarly punched
１ 試験片 ２ 打抜
き金型 ３ ポンチ
４ 剪断部 ５ 破断
部 ６ バリ1 Test piece 2 Punching die 3 Punch 4 Shearing part 5 Broken part 6 Burr
Claims (2)
０の条件で３５〜４０重量％のＮｉ，５〜１４重量％の
Ｃｒ及び０．００２０〜０．０１５０重量％のＣａを含
有し、Ｓ≦０．００３０重量％，Ｏ≦０．００５０重量
％，Ｂ≦０．００５０重量％で且つＳ＋Ｂ＋Ｏ≦０．０
０８０重量％を満足するようにＳ，Ｏ及びＢの含有量を
規制したことを特徴とする打抜き性に優れたＮｉ−Ｃｒ
−Ｆｅ系軟質磁性合金。[Claim 1] 3×(Ni%)−5×(Cr%)≦8
Contains 35-40% by weight of Ni, 5-14% by weight of Cr and 0.0020-0.0150% by weight of Ca, S≦0.0030% by weight, O≦0.0050% by weight under the condition of 0. , B≦0.0050% by weight, and S+B+O≦0.0
Ni-Cr with excellent punching properties, characterized in that the content of S, O and B is regulated to satisfy 0.080% by weight.
-Fe-based soft magnetic alloy.
６０の条件で４０〜５２重量％のＮｉ，０．５〜５重量
％のＣｒ及び０．００２０〜０．０１５０重量％のＣａ
を含有し、Ｓ≦０．００３０重量％，Ｏ≦０．００５０
重量％，Ｂ≦０．００５０重量％で且つＳ＋Ｂ＋Ｏ≦０
．００８０重量％を満足するようにＳ，Ｏ及びＢの含有
量を規制したことを特徴とする打抜き性に優れたＮｉ−
Ｃｒ−Ｆｅ系軟質磁性合金。[Claim 2] 50≦(Ni%)+4×(Cr%)≦
40-52 wt% Ni, 0.5-5 wt% Cr and 0.0020-0.0150 wt% Ca
Contains S≦0.0030% by weight, O≦0.0050
weight%, B≦0.0050 weight% and S+B+O≦0
．． Ni- with excellent punchability characterized by regulating the contents of S, O and B so as to satisfy 0.080% by weight.
Cr-Fe based soft magnetic alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13980191A JP3397330B2 (en) | 1991-05-15 | 1991-05-15 | Ni-Cr-Fe soft magnetic alloy with excellent punchability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13980191A JP3397330B2 (en) | 1991-05-15 | 1991-05-15 | Ni-Cr-Fe soft magnetic alloy with excellent punchability |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04337051A true JPH04337051A (en) | 1992-11-25 |
| JP3397330B2 JP3397330B2 (en) | 2003-04-14 |
Family
ID=15253753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13980191A Expired - Fee Related JP3397330B2 (en) | 1991-05-15 | 1991-05-15 | Ni-Cr-Fe soft magnetic alloy with excellent punchability |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3397330B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0818550A1 (en) * | 1996-07-12 | 1998-01-14 | Krupp VDM GmbH | Corrosion resistant soft magnetic iron-nickel-chrome alloy |
| JP2005522021A (en) * | 2002-02-15 | 2005-07-21 | アンフイ・アロイ | Soft magnetic alloys for watchmaking |
-
1991
- 1991-05-15 JP JP13980191A patent/JP3397330B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0818550A1 (en) * | 1996-07-12 | 1998-01-14 | Krupp VDM GmbH | Corrosion resistant soft magnetic iron-nickel-chrome alloy |
| JP2005522021A (en) * | 2002-02-15 | 2005-07-21 | アンフイ・アロイ | Soft magnetic alloys for watchmaking |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3397330B2 (en) | 2003-04-14 |
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