JPH0123850B2 - - Google Patents
Info
- Publication number
- JPH0123850B2 JPH0123850B2 JP2185681A JP2185681A JPH0123850B2 JP H0123850 B2 JPH0123850 B2 JP H0123850B2 JP 2185681 A JP2185681 A JP 2185681A JP 2185681 A JP2185681 A JP 2185681A JP H0123850 B2 JPH0123850 B2 JP H0123850B2
- Authority
- JP
- Japan
- Prior art keywords
- melting point
- case
- mask block
- magnetic head
- point 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.)
- Expired
Links
- 239000000463 material Substances 0.000 claims description 33
- 238000002844 melting Methods 0.000 claims description 28
- 230000008018 melting Effects 0.000 claims description 24
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 239000007787 solid Substances 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 239000000155 melt Substances 0.000 claims 2
- 239000011162 core material Substances 0.000 description 7
- 229910000859 α-Fe Inorganic materials 0.000 description 6
- 229920004943 Delrin® Polymers 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000005011 phenolic resin Substances 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/10—Structure or manufacture of housings or shields for heads
- G11B5/102—Manufacture of housing
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
Description
【発明の詳細な説明】
本発明は、低融点材料と高融点材料とを固着さ
せた磁気ヘツド用ケースの製造方法に関するもの
である。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method of manufacturing a case for a magnetic head in which a low melting point material and a high melting point material are bonded together.
例えば、消去用の磁気ヘツドでは、磁気コアの
材料としてフエライトを用い、ケースの材料とし
てフエノールやデルリン等の樹脂材料を用いる場
合が多い。しかし、前記磁気コアの材料とケース
の材料は、例えば磁気テープの如き記録媒体と摺
動した場合の耐摩耗性が異なつており、フエライ
トよりも樹脂材料が早く摩耗する。このため、テ
ープ摺動面が不均一に摩耗して磁気ヘツドの寿命
が著しく短くなる。 For example, in a magnetic head for erasing, ferrite is often used as the magnetic core material, and a resin material such as phenol or delrin is used as the case material. However, the magnetic core material and the case material have different abrasion resistance when sliding against a recording medium such as a magnetic tape, and the resin material wears out faster than the ferrite material. As a result, the tape sliding surface wears unevenly, significantly shortening the life of the magnetic head.
このような問題点を解決するために、ケース上
のテープ摺動面に切欠きを設け、該切欠きにガラ
ス、セラミツク等の如く耐摩耗性の高い排磁性物
質や、フエライトの如く磁気コアと同じ物質（以
後、これらをマスクブロツクと呼ぶ）を埋込み、
このマスクブロツクの表面にテープ摺動面を形成
していた。しかし、このような製造方法では、ケ
ースに設けた切欠きの寸法とマスクブロツクの寸
法を正確に合わせておかないと埋込んだマスクブ
ロツクがケースの切欠きから脱落してしまう欠点
がある。このため、前記マスクブロツクの取付け
工程には手数がかかり、しかも、経時変化に伴う
マスクブロツクの脱落を防止する事は困難であつ
た。 In order to solve this problem, a notch is provided in the tape sliding surface on the case, and the notch is filled with a highly wear-resistant magnetic material such as glass or ceramic, or a magnetic core such as ferrite. embedding the same material (hereinafter referred to as mask blocks),
A tape sliding surface was formed on the surface of this mask block. However, this manufacturing method has the disadvantage that unless the dimensions of the notch provided in the case and the dimensions of the mask block are accurately matched, the embedded mask block may fall out of the notch of the case. For this reason, the process of attaching the mask block is time-consuming, and moreover, it is difficult to prevent the mask block from falling off due to changes over time.
本発明の製造方法は前述した欠点を除去するた
めに、溶融した低融点材料（ケース材）と固体状
の高融点材料（マスクブロツク材）とを接触さ
せ、該低融点材料を固体化して固着するものであ
る。 In order to eliminate the above-mentioned drawbacks, the manufacturing method of the present invention brings a molten low-melting point material (case material) into contact with a solid high-melting point material (mask block material), solidifies the low-melting point material, and fixes the material. It is something to do.
以下、図を用いて本発明の製造方法を説明す
る。 Hereinafter, the manufacturing method of the present invention will be explained using the drawings.
第１図ａは磁気ヘツド用ケースの正面図であ
る。第１図ａにおいて、１はフエノールト樹脂や
デルリン等の比較的低融点（400℃以下）の材料
を用いたケースであり、２は金属、ガラス、セラ
ミツク、フエライト等の比較的高融点（400℃以
上）の材料を用いたマスクブロツクであり、３ａ
は開口部である。 FIG. 1a is a front view of the magnetic head case. In Figure 1a, 1 is a case using a material with a relatively low melting point (below 400°C) such as phenolic resin or Delrin, and 2 is a case using a material with a relatively high melting point (400°C or less) such as metal, glass, ceramic, or ferrite. This is a mask block using the above materials, and 3a
is the opening.
第２図ａ，ｂは第１図に示した磁気ヘツド用ケ
ースを一点鎖線４に沿つて切断し、矢印５の方向
に向いて見た場合の断面図である。 FIGS. 2a and 2b are cross-sectional views of the magnetic head case shown in FIG. 1 taken along the dashed line 4 and viewed in the direction of the arrow 5. FIGS.
第２図ａにおいて、まず、比較的に融点の高い
高融点材料、例えばステンレスの如き金属（融点
は1000℃〜1500℃）、高融点ガラス（融点は600℃
〜1000℃）、セラミツクやフエライト（融点は900
℃〜1200℃）等を用い、固体状のマスクブロツク
２ａ（斜視図）を予め形成しておき、マスクブロ
ツク２a′（マスクブロツク２ａの断面図）の位置
に設置する。次に、比較的融点の低い溶融した低
融点材料、例えばフエノール樹脂やデルリン（融
点は250℃〜350℃）等を用いてケース１ａを形成
させる。その後低融点材料を冷却し固体化する事
によつてケース１ａとマスクブロツク２a′は接着
剤を用いなくても固着する。 In Fig. 2a, first, materials with a relatively high melting point, such as metals such as stainless steel (melting point is 1000°C to 1500°C), high melting point glass (melting point is 600°C
~1000℃), ceramics and ferrites (melting point is 900℃)
A solid mask block 2a (perspective view) is formed in advance at a temperature of 1200°C to 1200°C, and placed at the position of the mask block 2a' (cross-sectional view of the mask block 2a). Next, the case 1a is formed using a molten low-melting material having a relatively low melting point, such as phenol resin or Delrin (melting point is 250° C. to 350° C.). Thereafter, by cooling and solidifying the low melting point material, the case 1a and the mask block 2a' are fixed together without using an adhesive.
更に、該ケースと該マスクブロツクの結び付き
を強固にする構成を第２図ｂに示す。 Furthermore, a structure for strengthening the connection between the case and the mask block is shown in FIG. 2b.
第２図ｂにおいて、前記高融点材料を用いて固
体状のマスクブロツク２ｂ（斜視図）を予め形成
しておき（このマスクブロツク２ｂは、マスクブ
ロツク２ａの少くとも１つの面に略円錐台形の直
径の大きい部分を突出させた突出部を設けたもの
である）、マスクブロツク２b′（マスクブロツク２
ｂの断面図）の位置に設置する。次に、溶融した
前記低融点材料等を用いてケース１ｂを形成させ
る。その後低融点材料を冷却し固体化する事によ
つてケース１ｂとマスクブロツク２b′は接着剤を
用いなくても強固に固着する。 In FIG. 2b, a solid mask block 2b (perspective view) is formed in advance using the high melting point material (this mask block 2b has a substantially truncated conical shape on at least one surface of the mask block 2a). mask block 2b' (mask block 2b'), mask block 2b' (mask block 2b')
(cross-sectional view of b). Next, the case 1b is formed using the melted low melting point material. Thereafter, by cooling and solidifying the low melting point material, the case 1b and the mask block 2b' are firmly fixed together without using an adhesive.
第３図は第１図及び第２図ａ，ｂで説明したケ
ースに磁気ヘツド素体を挿入する様子を示した斜
視図である。 FIG. 3 is a perspective view showing how the magnetic head element is inserted into the case described in FIGS. 1 and 2a and 2b.
第３図において、磁気ヘツド素体６は、フエラ
イトの如き高透磁率物質のコア半体７ａ，７ｂを
突合わせて形成した磁気コア７と、端子８ａ，８
ｂを設けコイル９を巻回したボビン１０から成
る。この磁気ヘツド素体６をケース１の背面に設
けた開口部３ｂに挿入すると、第２図ａ，ｂに示
した狭い開口部３ａが磁気コア７を保持し、広い
開口部３ｂがコイル９、ボビン１０等を収納す
る。 In FIG. 3, the magnetic head body 6 includes a magnetic core 7 formed by butting together core halves 7a and 7b made of a high magnetic permeability material such as ferrite, and terminals 8a and 8.
It consists of a bobbin 10 provided with a coil 9 and wound with a coil 9. When this magnetic head element 6 is inserted into the opening 3b provided on the back side of the case 1, the narrow opening 3a shown in FIGS. 2a and 2b holds the magnetic core 7, and the wide opening 3b holds the coil 9, Stores bobbin 10, etc.
以上に述べた如く、本発明の磁気ヘツド用コア
の製造方法を用いるとマスクブロツクがケースに
対して強固に固着するので磁気ヘツドの信頼性が
高くなる。 As described above, when the method of manufacturing a core for a magnetic head of the present invention is used, the mask block is firmly fixed to the case, so that the reliability of the magnetic head is increased.
第１図は磁気ヘツド用ケースの正面図。第２図
ａは磁気ヘツド用ケースの一例を示した断面図。
第２図ｂは磁気ヘツド用ケースの他の例を示した
断面図。第３図は本発明の製造方法で製造したケ
ースに磁気ヘツド素体を挿入する様子を示した斜
視図。
１，１ａ，１ｂ……ケース、２，２ａ，２a′，
２ｂ，２b′……マスクブロツク、３ａ，３ｂ……
開口部、６……磁気ヘツド素体。
FIG. 1 is a front view of the magnetic head case. FIG. 2a is a sectional view showing an example of a case for a magnetic head.
FIG. 2b is a sectional view showing another example of the magnetic head case. FIG. 3 is a perspective view showing how a magnetic head element is inserted into a case manufactured by the manufacturing method of the present invention. 1, 1a, 1b...Case, 2, 2a, 2a',
2b, 2b'...mask block, 3a, 3b...
Opening, 6...Magnetic head element.
Claims (1)
料と比較的に融点が高く固体状の高融点材料とを
接触させる工程と、前記低融点材料を冷却し固体
化して磁気ヘツド用のケースを形成させる工程と
を有し、前記低融点材料と前記高融点材料とを固
着させる事を特徴とする磁気ヘツド用ケースの製
造方法。 ２ 特許請求の範囲１において、前記低融点材料
は400℃以下で溶融する材料を用い、前記高融点
材料は400℃以上で溶融する材料を用いて成る。[Claims] 1. A step of bringing a molten low melting point material with a relatively low melting point into contact with a solid high melting point material having a relatively high melting point, and cooling and solidifying the low melting point material. 1. A method for manufacturing a case for a magnetic head, comprising the step of forming a case for a magnetic head, the method comprising: fixing the low melting point material and the high melting point material. 2. In claim 1, the low melting point material is a material that melts at 400°C or lower, and the high melting point material is a material that melts at 400°C or higher.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2185681A JPS57135422A (en) | 1981-02-17 | 1981-02-17 | Manufacture of magnetic head case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2185681A JPS57135422A (en) | 1981-02-17 | 1981-02-17 | Manufacture of magnetic head case |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3467188A Division JPS63225903A (en) | 1988-02-16 | 1988-02-16 | Case for magnetic head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57135422A JPS57135422A (en) | 1982-08-21 |
| JPH0123850B2 true JPH0123850B2 (en) | 1989-05-09 |
Family
ID=12066752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2185681A Granted JPS57135422A (en) | 1981-02-17 | 1981-02-17 | Manufacture of magnetic head case |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57135422A (en) |
-
1981
- 1981-02-17 JP JP2185681A patent/JPS57135422A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57135422A (en) | 1982-08-21 |
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