JPH0362904A - Manufacture of nickel-based ferrite - Google Patents

Manufacture of nickel-based ferrite

Info

Publication number
JPH0362904A
JPH0362904A JP1198282A JP19828289A JPH0362904A JP H0362904 A JPH0362904 A JP H0362904A JP 1198282 A JP1198282 A JP 1198282A JP 19828289 A JP19828289 A JP 19828289A JP H0362904 A JPH0362904 A JP H0362904A
Authority
JP
Japan
Prior art keywords
nickel
raw material
oxide
based ferrite
ferrite
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
Application number
JP1198282A
Other languages
Japanese (ja)
Inventor
Keiichiro Kobayashi
啓一郎 小林
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP1198282A priority Critical patent/JPH0362904A/en
Publication of JPH0362904A publication Critical patent/JPH0362904A/en
Pending legal-status Critical Current

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  • Inorganic Compounds Of Heavy Metals (AREA)
  • Soft Magnetic Materials (AREA)

Abstract

PURPOSE:To use the raw material of nickel other than nickel oxide at a low cost and to make it possible to manufacture nickel-based ferrite characterized by a low cost and excellent quality by using nickel hydroxide as the raw mate rial of the nickel. CONSTITUTION:This is a method for using nickel hydroixe as the raw material of nickel. The nickel hydroxide contains only one more molecule of water in comparison with nickel oxide. Therefore, the effect of the change in raw material on the manufacturing process is less in comparison with a method using other raw material of nickel. For example, when nickel chloride is used, chlorine gas is generated in baking. Therefore, large-scale changes in manufactur ing apparatuses such as expansion of exhaust devices and the large-scale change in baking conditions are required. When the nickel hydroxide is used, however, only steam is generated. Thus nickel-based ferrite can be obtained without any change in conventinal manufacturing apparatuses using the nickel oxide.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、原料として水酸化ニッケル(Ni (OH)
2 )を使用するニッケル系フェライトの製造方法に関
するものである。
[Detailed description of the invention] [Industrial application field] The present invention uses nickel hydroxide (Ni (OH)) as a raw material.
The present invention relates to a method for producing nickel-based ferrite using 2).

〔従来の技術〕[Conventional technology]

従来、ニッケル(Ni)を成分として含むフェライト(
例えばNi −Zn系フェライト、Ni−Zn−Cu系
フェライト等)は、酸化ニッケル(Nip)をニッケル
原料として製造していた。
Conventionally, ferrite containing nickel (Ni) as a component (
For example, Ni-Zn ferrite, Ni-Zn-Cu ferrite, etc.) have been manufactured using nickel oxide (Nip) as a nickel raw material.

この製造方法では、他の原料、例えば酸化第2鉄(Fe
、 o、 )、酸化亜鉛(ZnO)、酸化銅(Cub)
等と、酸化ニッケル(Nip)を所定の組成となるよう
に秤量、混合し、仮焼成、粉砕、顆粒化、成形、本焼成
を経て所望のフェライトを製造していた。
In this production method, other raw materials, such as ferric oxide (Fe
, o, ), zinc oxide (ZnO), copper oxide (Cub)
etc. and nickel oxide (Nip) were weighed and mixed to have a predetermined composition, and the desired ferrite was manufactured through preliminary firing, crushing, granulation, molding, and main firing.

〔発明が解決しようとする課題〕[Problem to be solved by the invention]

ところで近年、8MC対策用ノイズフィルターコアにお
いて、ノイズの高周波化に伴ってNi −Zn系フェラ
イトの需要は増加する一方である。そのため、品質を維
持しつつより安価なニッケル系フェライトを製造する必
要が生じた。
Incidentally, in recent years, demand for Ni--Zn-based ferrite has been increasing in noise filter cores for 8MC countermeasures as the frequency of noise has become higher. Therefore, it became necessary to manufacture nickel-based ferrite at a lower price while maintaining quality.

しかるに酸化ニッケルは高価であり、また不純物含有量
(特にコバルト含有量)の少ない酸化ニッケルを得るこ
とは困難であるなどの問題点があったー 本発明は上記の問題点を解決するためになされたもので
、酸化ニッケル以外の安価なニッケル原料を使用するこ
とができ、これにより安価で品質の優れたニッケル系フ
ェライトを製造できる方法を得ることを目的とする。
However, nickel oxide is expensive, and it is difficult to obtain nickel oxide with low impurity content (particularly cobalt content).The present invention was made to solve the above problems. The object of the present invention is to provide a method that allows the use of inexpensive nickel raw materials other than nickel oxide, thereby producing inexpensive and high-quality nickel-based ferrite.

〔課題を解決するための手段〕[Means to solve the problem]

本発明のニッケル系フェライトの製造方法は、ニッケル
を成分として含むフェライトの製造方法において、水酸
化ニッケルをニッケル原料として使用する方法である。
The method for producing nickel-based ferrite of the present invention is a method for producing ferrite containing nickel as a component, in which nickel hydroxide is used as a nickel raw material.

具体的な製造方法は従来と同様の方法が採用でき、例え
ば酸化第2鉄、酸化亜鉛、酸化銅等の他の原料と水酸化
ニッケルを所定の組成となるように秤量して混合し、仮
焼成、粉砕、顆粒化、成形、本焼成を経てフェライトを
製造する。
The specific manufacturing method can be the same as conventional methods. For example, other raw materials such as ferric oxide, zinc oxide, copper oxide, etc. and nickel hydroxide are weighed and mixed to have a predetermined composition, and then temporarily mixed. Ferrite is manufactured through firing, crushing, granulation, molding, and main firing.

〔作 用〕[For production]

本発明のニッケル系フェライトの製造方法においては、
水酸化ニッケル(Ni(O)l)a)は酸化ニッケル(
Nip)と比較して水(H,0) 1分子を多く含むの
みであるので、他のニッケル原料を使用する場合に比べ
て原料変更に伴う製造プロセスに与える影響が小さい。
In the method for producing nickel-based ferrite of the present invention,
Nickel hydroxide (Ni(O)l)a) is nickel oxide (
Since it contains only one molecule of water (H,0) more than nickel (Nip), the influence on the manufacturing process due to a change in raw materials is smaller than when other nickel raw materials are used.

例えば塩化ニッケル(NiCQz )を使用すると、焼
成時に塩素ガス(CQ2)が発生するため、排気装置の
増設、焼成条件の大きな変更等、製造設備に大きな変更
を必要とするが、水酸化ニッケルを使用すると、水蒸気
が発生するのみで、酸化ニッケル(Nip)を用いる従
来の製造設備をなんら変更することなく、ニッケル系フ
ェライトが得られる。
For example, if nickel chloride (NiCQz) is used, chlorine gas (CQ2) is generated during firing, which requires major changes to manufacturing equipment, such as adding an exhaust system and changing firing conditions, but using nickel hydroxide Then, only water vapor is generated, and nickel-based ferrite can be obtained without making any changes to conventional manufacturing equipment that uses nickel oxide (NIP).

〔発明の実施例〕[Embodiments of the invention]

Ni −Zn −Cu系フェライトにおいて、ニッケル
原料として不純物濃度の低い水酸化ニッケル(Ni(O
H)z)を用いて製造したところ、従来の生産設備およ
び製造工程に何の変更を加えることなく、従来と同等の
特性をもつフェライトが1組成により多少変化するが、
10%以上低コストで得られた。
In Ni-Zn-Cu ferrite, nickel hydroxide (Ni(O
H) When manufactured using z), without making any changes to the conventional production equipment and manufacturing process, ferrite with the same characteristics as the conventional one changed somewhat depending on the composition, but
It was obtained at a cost lower than 10%.

実施例として、 Fe2O,を48%、 ZnOを31
%、N1(OH)、を14.7%、CuOを6.3%(
すべて+101%)の割合で混合し、仮焼成、粉砕して
得たNi −Zn −Cu系フェライトを、1 ton
/−でプレスし、1060℃で焼成することにより供試
体を得た。この供試体は初透磁率μlが700、キュリ
ー温度Tcが150℃の特性を有するものであった。こ
れは酸化ニッケル(Nip)を用いて同一組成で作った
フェライトと同等の特性である。
As an example, Fe2O, 48%, ZnO 31%
%, N1(OH), 14.7%, CuO 6.3% (
1 ton of Ni-Zn-Cu-based ferrite obtained by mixing, pre-calcining and pulverizing at a ratio of +101%)
A specimen was obtained by pressing at /- and firing at 1060°C. This specimen had an initial magnetic permeability μl of 700 and a Curie temperature Tc of 150°C. This property is equivalent to that of ferrite made with the same composition using nickel oxide (Nip).

原料の混合比としては上記に限らず、Fe、 O,が4
7〜49.5%、ZnOが15〜35%、Ni(OH)
2が10〜25%、CuOが4〜10%(すべてmo1
%)の範囲でμ、が100〜2000の範囲の特性をも
つフェライトが得られた。
The mixing ratio of raw materials is not limited to the above, but Fe, O, is 4
7-49.5%, ZnO 15-35%, Ni(OH)
2 is 10-25%, CuO is 4-10% (all mo1
%) and a ferrite having a characteristic μ in the range of 100 to 2000 was obtained.

また焼成温度は950〜1200℃の範囲で、組成と必
要な特性に適した温度を選択することが可能である。
Further, the firing temperature is in the range of 950 to 1200°C, and it is possible to select a temperature suitable for the composition and required properties.

すなわち上記実施例において、従来の酸化ニッケルを使
用したフェライトと同等の緒特性を持つフェライトが容
易に得られた。また水酸化ニッケル(Ni(Oll)2
)を使用した場合の方が焼成時の焼結性が良好であった
。そのためプレス条件や焼成条件を従来より緩和するこ
とが可能となり、製造コストが低減する。
That is, in the above examples, ferrite having the same mechanical characteristics as conventional ferrite using nickel oxide was easily obtained. Also, nickel hydroxide (Ni(Oll)2
) had better sinterability during firing. Therefore, it becomes possible to relax the pressing conditions and firing conditions compared to the conventional ones, and the manufacturing cost is reduced.

なお、水酸化ニッケル(Ni(OH)、)の使用可能な
組成範囲は上記実施例の範囲のみに限られない。
Note that the usable composition range of nickel hydroxide (Ni(OH)) is not limited to the range of the above embodiments.

酸化ニッケルと比較して水酸化ニッケルは水(N20)
1分子を多く含むだけの違いであるので、酸化ニッケル
が使用可能であった全組成域で、水酸化ニッケルも使用
可能である。事実、上記実施例では上記組成範囲におけ
る試作時には、水酸化ニッケルの使用限界の組成を示す
ような状況は、外観上および特性上−切a測されなかっ
た。
Compared to nickel oxide, nickel hydroxide is water (N20)
Since the difference is only that it contains more one molecule, nickel hydroxide can also be used in the entire composition range where nickel oxide can be used. In fact, in the above-mentioned example, during the trial production in the above-mentioned composition range, no situation in which the composition of nickel hydroxide was at the limit of use was observed in terms of appearance and properties.

〔発明の効果〕〔Effect of the invention〕

以上の通り、本発明によれば、ニッケル原料として水酸
化ニッケルを使用することにより、現在の酸化ニッケル
を使用する設備をそのまま使用し。
As described above, according to the present invention, by using nickel hydroxide as a nickel raw material, current equipment that uses nickel oxide can be used as is.

工程変更をすることなく、低コストで従来と同等の特性
を持ち、焼結性の良好なニッケル系フェライトを製造す
ることができる。
Without changing the process, it is possible to produce nickel-based ferrite at low cost, with properties equivalent to conventional ones, and with good sinterability.

Claims (1)

【特許請求の範囲】[Claims] (1)ニッケルを成分として含むフェライトの製造方法
において、水酸化ニッケルをニッケル原料として使用す
ることを特徴とするニッケル系フェライトの製造方法。
(1) A method for producing ferrite containing nickel as a component, characterized in that nickel hydroxide is used as a nickel raw material.
JP1198282A 1989-07-31 1989-07-31 Manufacture of nickel-based ferrite Pending JPH0362904A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1198282A JPH0362904A (en) 1989-07-31 1989-07-31 Manufacture of nickel-based ferrite

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1198282A JPH0362904A (en) 1989-07-31 1989-07-31 Manufacture of nickel-based ferrite

Publications (1)

Publication Number Publication Date
JPH0362904A true JPH0362904A (en) 1991-03-19

Family

ID=16388535

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1198282A Pending JPH0362904A (en) 1989-07-31 1989-07-31 Manufacture of nickel-based ferrite

Country Status (1)

Country Link
JP (1) JPH0362904A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2790039A1 (en) 1999-02-18 2000-08-25 Usui Kokusai Sangyo Kk FUEL SUPPLY RAMP ASSEMBLY
CN108675360A (en) * 2018-06-01 2018-10-19 五邑大学 A kind of β-nickel hydroxide/iron oxide ultrathin nanometer piece, and preparation method thereof

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2790039A1 (en) 1999-02-18 2000-08-25 Usui Kokusai Sangyo Kk FUEL SUPPLY RAMP ASSEMBLY
US6354273B1 (en) 1999-02-18 2002-03-12 Usui Kokusai Sangyo Kaisha Ltd. Fuel delivery rail assembly
US6470859B2 (en) 1999-02-18 2002-10-29 Usai Kokusai Sangyo Kaisha Ltd. Fuel delivery rail assembly
CN108675360A (en) * 2018-06-01 2018-10-19 五邑大学 A kind of β-nickel hydroxide/iron oxide ultrathin nanometer piece, and preparation method thereof

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