JPS63222018A - Ferrite composition - Google Patents

Ferrite composition

Info

Publication number
JPS63222018A
JPS63222018A JP62053298A JP5329887A JPS63222018A JP S63222018 A JPS63222018 A JP S63222018A JP 62053298 A JP62053298 A JP 62053298A JP 5329887 A JP5329887 A JP 5329887A JP S63222018 A JPS63222018 A JP S63222018A
Authority
JP
Japan
Prior art keywords
component
weight
ferrite
parts
composition
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
JP62053298A
Other languages
Japanese (ja)
Inventor
Daisuke Kaino
戒能 大助
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.)
Taiyo Yuden Co Ltd
Original Assignee
Taiyo Yuden Co Ltd
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 Taiyo Yuden Co Ltd filed Critical Taiyo Yuden Co Ltd
Priority to JP62053298A priority Critical patent/JPS63222018A/en
Publication of JPS63222018A publication Critical patent/JPS63222018A/en
Pending legal-status Critical Current

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  • Compounds Of Iron (AREA)
  • Magnetic Ceramics (AREA)
  • Soft Magnetic Materials (AREA)

Abstract

PURPOSE:To reduce calcination temperature and to contrive to reduce calcination cost, by adding given amounts of specific three additional components to a ferrite main component consisting of Fe2O3, MnO and ZnO. CONSTITUTION:(A) A ferrite main component consisting of Fe2O3, MnO and ZnO, (B) a first additional component comprising at least one of CaO, SiO2 and V2O5, (C) a second additional component comprising at least one of Ta2O5, SnO2 and CuO and (D) a third additional component comprising at least one of Na2O and Ag2O are prepared. Then the components are blended in a blending ratio of 100pts.wt. component A, 0.005-0.4pt.wt. component C and 0.005-0.2pt.wt. component D to give the aimed ferrite composition. Since the prepared ferrite composition is blended with the components C and D, the composition can be calcined at a lower temperature than that of a conventional method and is preferably useful for manufacturing core of transformer in high- frequency band.

Description

【発明の詳細な説明】 [産業上の利用分野] 本発明は、2O〜500kHz高周波帯域のトランスの
磁心等を製作するためのフェライト組成物に関する。
DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a ferrite composition for manufacturing a magnetic core of a transformer in a high frequency band of 20 to 500 kHz.

[従来の技術] 従来の代表的なMn−Zn系フエライI−材料は、p 
e 2O3(酸化!>、Mn0(酸化マンガン)、Zn
0(酸化亜鉛)から成る主成分と、Ca0(酸化力ルシ
ュウム璽5104  (二酸化けい素)、V2O5(酸
化バナジュウム)等からなる添加成分とから成る。
[Prior art] A typical conventional Mn-Zn-based Ferrite I material is p
e 2O3 (oxidation!>, Mn0 (manganese oxide), Zn
It consists of a main component consisting of 0 (zinc oxide) and additional components such as Ca0 (oxidizing power 5104 (silicon dioxide)) and V2O5 (vanadium oxide).

[発明が解決しようとする問題点] ところで、上述の如き組成のフェライトは、1250°
C〜1350℃の高温で焼成しなければならず、必然的
に焼成コスI・が高くなった。
[Problems to be Solved by the Invention] By the way, ferrite having the above composition has a 1250°
It had to be fired at a high temperature of C to 1350°C, which inevitably resulted in a high firing cost I.

そこで、本発明の目的は、従来よりも低温で焼結される
フェライト組成物を提供することにある。
Therefore, an object of the present invention is to provide a ferrite composition that can be sintered at a lower temperature than conventional ones.

[問題点を解決ため手段] 上記問題点を解決し、−上記目的を達成するための本発
明は、Fe 2O3 、MnO,Znoから成るフェラ
イト組成物と、Cao、Sio2、V2O5の内の少な
くとも1種を含む第1の添加成分と、Ta  O,5n
02 、C1,、IOの内の少なくとも1種から成る第
2の添加成分と、N a 2O、Ag2Oの内の少なく
とも1種から成る第3の添加成分とから成り、前記第2
の添加成分か前記主成分100重量部に対して0.00
5〜0.4重量部とされ、前記第3の添加成分が前記主
成分100重量部に対して0.005〜0.2重量部と
されているフェライ1へ組成物に係わるものである。
[Means for Solving the Problems] The present invention for solving the above problems and achieving the above objects includes a ferrite composition consisting of Fe2O3, MnO, and Zno, and at least one of Cao, Sio2, and V2O5. A first additive component containing seeds and Ta O,5n
02, C1,, IO, and a third additive component consisting of at least one of Na2O and Ag2O.
0.00 parts by weight of the added component or 100 parts by weight of the main component
5 to 0.4 parts by weight, and the third additive component is in an amount of 0.005 to 0.2 parts by weight based on 100 parts by weight of the main component.

「作用」 」1記発明の第2及び第3の添加成分は、焼成温度を低
下させることに寄与し、1150℃程度での焼結が可能
になる。
"Function" The second and third additive components of the invention described in item 1 contribute to lowering the sintering temperature, making it possible to sinter at about 1150°C.

[実施例1] 次に、本発明の詳細な説明する。主成分として、Fe2
O35B、0モル%、MnO35゜5モル%、ZnO1
1,5モル%で100モル%となるものを1. O0重
量部用意しな。
[Example 1] Next, the present invention will be explained in detail. As the main component, Fe2
O35B, 0 mol%, MnO35゜5 mol%, ZnO1
1.5 mole% becomes 100 mole%. Prepare O0 parts by weight.

第1の添加成分としてCa CO3をCaOに換算しテ
0.1重量部、S 102を0.005重量部、V2O
!5を0.1重量部用意した。この第1の添加成分の各
酸化物の量は、主成分を100重量部にした場合を示す
As the first additive component, CaCO3 is converted to CaO and 0.1 part by weight, S102 is 0.005 part by weight, and V2O.
! 0.1 part by weight of 5 was prepared. The amount of each oxide in the first additive component is based on 100 parts by weight of the main component.

第2の添加成分としてTa2o5 (酸化タンタル)を
0.1重量部、S n O2(酸化スズ)を0.1重量
部用意しな。
Prepare 0.1 part by weight of Ta2o5 (tantalum oxide) and 0.1 part by weight of SnO2 (tin oxide) as second additive components.

第3の添加成分としてNa2CO3をNa2゜(酸化す
I・リュウム)に換算して0.005重量部、A g 
2O (酸化銀)を0.05重量部用意した。なお、第
2及び第3の添加成分の重量部も主成分100重量部に
対する割合を示す。
The third additive component is 0.005 parts by weight of Na2CO3 converted to Na2° (I oxidized rhium), A g
0.05 part by weight of 2O (silver oxide) was prepared. Note that the parts by weight of the second and third additive components also indicate the proportions relative to 100 parts by weight of the main component.

次に、上記主成分、第1〜第3の添加成分をボールミル
で5時間混合しな。
Next, the main component and the first to third additional components were mixed in a ball mill for 5 hours.

次に、得られた原料混合粉末を900℃、2時間仮焼し
な。後に、再びホールミルで5時間微粉砕しな。
Next, the obtained raw material mixed powder was calcined at 900°C for 2 hours. Afterwards, pulverize again in a whole mill for 5 hours.

次に、仮焼後の原料粉末に、有機バインターとしてPV
Aを5重基%添加混合し、造粒して、油圧プレスで1.
5 ton /cxAの圧力で外径22mm、内径16
關、厚さ5 mmのリング形状にプレス成型した。
Next, PV is added to the raw material powder after calcination as an organic binder.
5% of A is added and mixed, granulated, and 1.
5 ton/cxA pressure, outer diameter 22mm, inner diameter 16
Then, it was press-molded into a ring shape with a thickness of 5 mm.

次に、得られた成型体を1150’Cで2時間焼成して
焼結体試料を得た。
Next, the obtained molded body was fired at 1150'C for 2 hours to obtain a sintered body sample.

得られた試料の初透磁率μIを測定しなところ2O10
であった。また、試料のうず電流損、ヒステリシス損、
残留損等を合せた全損失を測定したところ、198II
IW/C■3  であつな。この実施例1から明らかな
如く、1150℃の焼成で実用可能な特性を有するフェ
ライトを提供することができる。
The initial magnetic permeability μI of the obtained sample was measured at 2O10.
Met. In addition, sample eddy current loss, hysteresis loss,
When we measured the total loss including residual loss, we found that 198II
IW/C■3 Atsuna. As is clear from this Example 1, ferrite having practically usable characteristics can be provided by firing at 1150°C.

[実施例2] 成形体の焼成温度を12O0℃に変えた他は実施例1と
同一な組成及び方法でフェライト試料を作り、特性を測
定したところ、透磁率μiは2O30、損失は230 
Ink/ C11l” テアツr、6゜[実施例3] 成形体の焼成温度を1250°Cに変えた他は、実施例
1と同一な組成及び方法でフェライト試料を作り、特性
を測定しなところ、透磁率μiは2O50、損失は26
2 +1W/Cl11” テあッた。
[Example 2] A ferrite sample was made using the same composition and method as in Example 1 except that the firing temperature of the compact was changed to 12O0°C, and the properties were measured. The magnetic permeability μi was 2O30 and the loss was 230.
Ink/C11l" teats r, 6° [Example 3] A ferrite sample was made using the same composition and method as in Example 1, except that the firing temperature of the compact was changed to 1250°C, and the characteristics were not measured. , magnetic permeability μi is 2O50, loss is 26
2 +1W/Cl11” It was hot.

[比較例1] 成形体の焼成温度を1100℃に変えた他は、実施例1
と同一な組成及び方法でフェライ試料を作ったところ、
焼結体を得ることができなかった。
[Comparative Example 1] Same as Example 1 except that the firing temperature of the molded body was changed to 1100°C.
When a ferrite sample was made using the same composition and method as
A sintered body could not be obtained.

[比較例2] 実施例1における原料から第2及び第3の添加成分を除
いて、主成分と第1の添加成分のみを原料とした他は、
実施例1と同一の方法でフェライ試料を作ったところ、
焼結体を得られなかった。
[Comparative Example 2] The second and third additive components were removed from the raw materials in Example 1, and only the main component and the first additive component were used as raw materials.
When a ferrite sample was made in the same manner as in Example 1,
A sintered body could not be obtained.

焼成温度を12O0°Cに上げても焼結体を得られなか
った。焼成温度を1250℃に上げると、焼結体が得ら
れ、透磁率μiは2O2O、損失は249 mw/ c
rn3テあツタ。
Even if the firing temperature was raised to 1200°C, no sintered body could be obtained. When the firing temperature is increased to 1250 °C, a sintered body is obtained, with a magnetic permeability μi of 2O2O and a loss of 249 mw/c.
rn3 Te Atsuta.

[実施例4] 主成分としてFe2o3が52.5モル%と、MnOが
32.0モル%と、ZnOが15.5モル%とで100
モル%になるものを用意し、第1の添加成分としてCa
 CO3をCaOに換算して0.01重量部、SiOを
0.008重量部、V 2O5を0.2重量部用意し、
第2の添加成分としてTa2O5を0.05重量部、5
n02を0.2重量部、CU○(酸化銅)を0.1重量
部用意し、第3の添加成分としてNa  Co  をN
 a 2Oに換算して0゜05重量部、Ag2Oを0.
05重量部用意し、原料を上記主成分及び上記第1〜第
3の添加成分に変えた他は実施例1と同じ方法でフェラ
イト試料を作り、同じ方法で特性を測定したところ、透
磁率μmは3440、損失は193111W/C113
テあった。
[Example 4] The main components were 52.5 mol% Fe2O3, 32.0 mol% MnO, and 15.5 mol% ZnO.
% by mole is prepared, and Ca is added as the first additive component.
Prepare 0.01 part by weight of CO3 in terms of CaO, 0.008 part by weight of SiO, and 0.2 part by weight of V2O5,
0.05 parts by weight of Ta2O5 as the second additive component, 5
Prepare 0.2 parts by weight of n02 and 0.1 parts by weight of CU○ (copper oxide), and add Na Co to N as the third additive component.
a 0.05 parts by weight in terms of 2O, 0.05 parts by weight of Ag2O.
A ferrite sample was prepared in the same manner as in Example 1 except that the raw materials were changed to the above-mentioned main component and the above-mentioned first to third additive components, and the characteristics were measured in the same manner. is 3440, loss is 193111W/C113
There was a time.

[実施例5] 成形体の焼成温度を12O0°Cに変えた他は、実施例
4と同−組成及び方法でフェライト試料を作り、同一方
法で特性を測定しなところ、透磁率μiは3500、損
失は222 mw/cm3テあツタ。
[Example 5] A ferrite sample was made using the same composition and method as in Example 4, except that the firing temperature of the compact was changed to 1200°C, and the properties were measured using the same method. The magnetic permeability μi was 3500. , the loss was 222 mw/cm3.

[実施例6] 成形体の焼成温度を1250°Cに変えた他は、実施例
4と同−組成及び方法でフェライト試料を作り、同一の
方法で特性を測定したところ、透磁率μiは3560、
損失は25z1w/c川3であった。[比較例3] 成形体の焼成温度を1100°Cに変えた他は、実施例
4と同−組成及び方法でフェライト試料を作ったところ
、焼結体を得ることができなかった。
[Example 6] A ferrite sample was made using the same composition and method as in Example 4, except that the firing temperature of the compact was changed to 1250°C, and the properties were measured using the same method. The magnetic permeability μi was 3560. ,
The loss was 25z1w/c river 3. [Comparative Example 3] A ferrite sample was prepared using the same composition and method as in Example 4, except that the firing temperature of the compact was changed to 1100°C, but no sintered body could be obtained.

[比較例4] 実施例4の原料から第2及び第3の添加成分を除き、実
施例4と同一の主成分と第1の添加成分とで成形体を作
り、実施例4と同じ方法で1150℃で焼成しなところ
、焼結体を得ることができなかっな。更に、焼成温度を
12O0’Cに上げても焼結体を得ることができなかっ
な。焼成温度を1250℃に上げると焼結し、この試料
の透磁率μmは3430であり、損失は241111W
/Crr13テあっな。
[Comparative Example 4] A molded body was made using the same main component and the first additive component as in Example 4, except that the second and third additive components were removed from the raw materials in Example 4, and the molded body was produced in the same manner as in Example 4. If it was not fired at 1150°C, it would not be possible to obtain a sintered body. Furthermore, even if the firing temperature was raised to 12O0'C, a sintered body could not be obtained. Sintering occurs when the firing temperature is increased to 1250℃, the magnetic permeability μm of this sample is 3430, and the loss is 241111W.
/Crr13 Oh yeah.

「実施例7] 実施例4において、第2の添加成分の合計の重量部を0
.005〜0.4の範囲で種々変化させ、第3の添加成
分の合計の重量部を0.005〜0.2の範囲で種々変
化させてフェライト試料を作ったところ、1250°C
よりも低い温度で焼結しな。また、第1、第2及び第3
の添加成分の金属酸化物の種類を2種類又は1種類に減
らしても焼結温度を下げる効果が認められた。
“Example 7” In Example 4, the total weight part of the second additive component was 0.
.. When ferrite samples were made by varying the temperature within the range of 0.005 to 0.4 and varying the total weight part of the third additive component within the range of 0.005 to 0.2, the temperature was 1250 °C.
Do not sinter at temperatures lower than . Also, the first, second and third
The effect of lowering the sintering temperature was observed even when the number of metal oxides added as additive components was reduced to two or one.

[発明の効果] 上述から明らかな如く、焼結温度の低いフェライI・組
成物を提供することができ、フェライトの焼成コストの
低減が可能になる。
[Effects of the Invention] As is clear from the above, it is possible to provide a Ferrite I composition with a low sintering temperature, and it is possible to reduce the cost of sintering ferrite.

Claims (1)

【特許請求の範囲】 Fe_2O_3、MnO、ZnOから成るフェライト主
成分と、 CaO、SiO_2、V_2O_5の内の少なくとも1
種を含む第1の添加成分と、 Ta_2O_5、SnO_2、CuOの内の少なくとも
1種から成る第2の添加成分と、 Na_2O、Ag_2Oの内の少なくとも1種から成る
第3の添加成分と から成り、前記第2の添加成分が前記主成分100重量
部に対して0.005〜0.4重量部とされ、前記第3
の添加成分が前記主成分100重量部に対して0.00
5〜0.2重量部とされていることを特徴とするフェラ
イト組成物。
[Claims] A ferrite main component consisting of Fe_2O_3, MnO, and ZnO, and at least one of CaO, SiO_2, and V_2O_5
Consisting of a first additive component containing a seed, a second additive component consisting of at least one of Ta_2O_5, SnO_2, and CuO, and a third additive component consisting of at least one of Na_2O and Ag_2O, The second additive component is 0.005 to 0.4 parts by weight based on 100 parts by weight of the main component, and the third
The added component is 0.00 parts by weight per 100 parts by weight of the main component.
A ferrite composition characterized in that the content thereof is 5 to 0.2 parts by weight.
JP62053298A 1987-03-09 1987-03-09 Ferrite composition Pending JPS63222018A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62053298A JPS63222018A (en) 1987-03-09 1987-03-09 Ferrite composition

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62053298A JPS63222018A (en) 1987-03-09 1987-03-09 Ferrite composition

Publications (1)

Publication Number Publication Date
JPS63222018A true JPS63222018A (en) 1988-09-14

Family

ID=12938815

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62053298A Pending JPS63222018A (en) 1987-03-09 1987-03-09 Ferrite composition

Country Status (1)

Country Link
JP (1) JPS63222018A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02124724A (en) * 1988-11-02 1990-05-14 Taiyo Yuden Co Ltd Mn-zn ferrite material
JPH05267037A (en) * 1992-03-19 1993-10-15 Taiyo Yuden Co Ltd Laminated inductor and ferrite magnetic substance used for the same laminated inductor and manufacture thereof
US6627103B2 (en) 2000-03-31 2003-09-30 Tdk Corporation Mn-Zn ferrite production process, Mn-Zn ferrite, and ferrite core for power supplies

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5845163A (en) * 1981-09-10 1983-03-16 日立金属株式会社 Oxide magnetic material
JPS61256967A (en) * 1985-05-08 1986-11-14 住友特殊金属株式会社 Manufacture of mn-zn ferrite

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5845163A (en) * 1981-09-10 1983-03-16 日立金属株式会社 Oxide magnetic material
JPS61256967A (en) * 1985-05-08 1986-11-14 住友特殊金属株式会社 Manufacture of mn-zn ferrite

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02124724A (en) * 1988-11-02 1990-05-14 Taiyo Yuden Co Ltd Mn-zn ferrite material
JPH05267037A (en) * 1992-03-19 1993-10-15 Taiyo Yuden Co Ltd Laminated inductor and ferrite magnetic substance used for the same laminated inductor and manufacture thereof
US6627103B2 (en) 2000-03-31 2003-09-30 Tdk Corporation Mn-Zn ferrite production process, Mn-Zn ferrite, and ferrite core for power supplies

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