JPS6155164B2 - - Google Patents
Info
- Publication number
- JPS6155164B2 JPS6155164B2 JP14918574A JP14918574A JPS6155164B2 JP S6155164 B2 JPS6155164 B2 JP S6155164B2 JP 14918574 A JP14918574 A JP 14918574A JP 14918574 A JP14918574 A JP 14918574A JP S6155164 B2 JPS6155164 B2 JP S6155164B2
- Authority
- JP
- Japan
- Prior art keywords
- carbon fiber
- titanium
- elastic modulus
- cantilever
- aluminum
- 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
Description
【発明の詳細な説明】
本発明はカンチレバー、さらに詳しくはレコー
ドプレイヤーのピツクアツプにおけるカンチレバ
ーに関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to cantilevers, and more particularly to cantilevers in record player pickups.
近時音感教育が普及し、音楽機器も大巾に改良
され、これらに関する研究も盛んに行なわれてい
る。その一つとしてレコード再生技術もいろいろ
と改善され、またこれについて広く、深く攻究さ
れてきた。 Pitch education has become popular in recent years, musical equipment has been greatly improved, and research on these topics is being actively conducted. As one of these, various improvements have been made to record playback technology, and this has been widely and deeply investigated.
その結果、高性能のレコード再生には高音特性
が良好であることが必要であり、特に４チヤンネ
ルレコードで超高音域まで再生することが要求さ
れている。そのためカンチレバーには比弾性率
（弾性率／密度）の高い材料が良いこと、それに
はベリリウムが最高の材料であることが公知とさ
れている。 As a result, high-performance record playback requires good treble characteristics, and in particular, 4-channel records are required to be able to reproduce up to an ultra-treble range. For this reason, it is well known that a material with a high specific elastic modulus (elastic modulus/density) is good for the cantilever, and beryllium is the best material for this.
しかし、ベリリウムは非常に毒性を有している
ので、その製錬技術も確立されておらない。 However, since beryllium is extremely toxic, the technology for smelting it has not been established.
また硬度が高く加工技術も確立されておらず、
さらにベリリウム材の廃棄物も毒性が強いため、
その取り扱いについては環境汚染の問題が解決さ
れておらず、さらにまたきわめて高価である。 In addition, the hardness is high and processing technology has not been established.
Additionally, beryllium waste is highly toxic;
Regarding its handling, problems of environmental pollution have not been solved, and furthermore, it is extremely expensive.
したがつてカンチレバーには比弾性率2750とベ
リリウムの15200に対して低いにもかかわらず、
アルミニウムが加工が容易で軽いこと、毒性がな
い点及び入手し易いことなどを総合的に考慮して
アルミニウム材が用いられている。 Therefore, although the cantilever has a specific elastic modulus of 2750, which is lower than beryllium's 15200,
Aluminum material is used in consideration of the fact that aluminum is easy to process, lightweight, non-toxic, and easily available.
本出願人は需要者の飽くことのない高性能のカ
ンチレバーの出現についての要望に応えて研究し
た結果、ベリリウムとほぼ同等の比弾性率を有
し、かつ加工が容易で、さらに毒性を有しないカ
ンチレバーを開発し、これについてさきに実用新
案登録出願した。（実願昭49−59218号）
その要旨は炭素繊維強化複合材料、詳しくは多
数の微細な炭素繊維フイラメントの束を樹脂で束
状に形成したものでカンチレバーに構成したもの
である。 As a result of research conducted in response to the ever-insatiable demands of consumers for the appearance of high-performance cantilevers, the present applicant has found that the cantilever has a specific elastic modulus almost equivalent to that of beryllium, is easy to process, and is non-toxic. He developed a cantilever and filed a utility model registration application for it. (Utility Application No. 49-59218) The gist is a carbon fiber-reinforced composite material, more specifically, a bundle of many fine carbon fiber filaments formed into a bundle of resin, which is constructed into a cantilever.
しかし、このカンチレバーは寸法精度が劣り、
熱硬化後は延性がないため曲げ加工およびつぶし
加工が困難となり、機械的強度が弱いので折損し
たりする難点があつた。 However, this cantilever has poor dimensional accuracy,
After thermosetting, it has no ductility, making bending and crushing difficult, and its weak mechanical strength causes it to break.
また、炭素繊維は高グレードのものほど金属と
のぬれが悪く、炭素繊維金属複合材料を成形する
ことが困難であつた。 Furthermore, the higher the grade of carbon fiber, the poorer the wettability with metal, making it difficult to form a carbon fiber-metal composite material.
本発明は比弾性率をベリリウムのそれとほぼ同
じにし、これら欠点を改善することに成功したも
ので、その特徴は炭素繊維を棒状もしくは管状に
構成した構成体又は前記構成体に比弾性率を高め
るために炭素繊維とよくぬれるチタン等の水溶性
塩の水溶液に浸漬し、高温加熱処理したのち、オ
ートクレーブの中で金属を溶融含浸させた炭素繊
維金属複合材料より成るピツクアツプのカンチレ
バーに関するものである。 The present invention succeeded in improving these drawbacks by making the specific modulus almost the same as that of beryllium.The present invention is characterized by increasing the specific modulus of elasticity of carbon fibers in a rod-shaped or tubular structure, or in the above-mentioned structure. This invention relates to a pick-up cantilever made of a carbon fiber-metal composite material that is immersed in an aqueous solution of a water-soluble salt such as titanium that is well wetted with carbon fibers, subjected to high-temperature heat treatment, and then melted and impregnated with metal in an autoclave.
炭素繊維金属複合材料は微細な炭素繊維フイラ
メントを多数一方向に束ねて第１図および第３図
に示すように棒状又は管状に構成されておりアル
ミニウム、アルミニウム合金、チタニウム、チタ
ニウム合金の浴に浸漬して、これら炭素繊維フイ
ラメント間をこれら合金又は金属で充填するか、
又は、第２図に示すように前記構成体に比弾性率
を高めるために前処理として、これと良くぬれる
塩化チタン、塩化ジルコニウム、塩化タングステ
ン浴に浸漬し、高温加熱処理すると炭素繊維フイ
ラメントの表面にこれら金属と置換反応が生じ、
これら金属のカーバイドが表面に生じ、炭素繊維
の表面をコーテイングする。（例えば、TiCl4＋Ｃ
→TiC＋2Cl2）
ついでこれらのコーテイングされた炭素繊維を
多数一方向に束ねて棒状に構成した構成体をアル
ミニウム、アルミニウム合金、チタニウム、チタ
ニウム合金の浴に溶融含浸させ、炭素繊維金属複
合材としたものである。 Carbon fiber metal composite materials are made up of a large number of fine carbon fiber filaments bundled in one direction to form a rod or tube shape as shown in Figures 1 and 3. Fill the spaces between these carbon fiber filaments with these alloys or metals by dipping, or
Alternatively, as shown in Figure 2, as a pretreatment to increase the specific elastic modulus, the structure is immersed in a titanium chloride, zirconium chloride, or tungsten chloride bath that is well wetted with the structure, and then heated at a high temperature to improve the surface of the carbon fiber filament. A substitution reaction occurs with these metals,
Carbides of these metals form on the surface and coat the surface of the carbon fibers. (For example, TiCl 4 +C
→TiC+2Cl 2 ) Next, a rod-shaped structure made by bundling a large number of these coated carbon fibers in one direction was melted and impregnated in a bath of aluminum, aluminum alloy, titanium, or titanium alloy to form a carbon fiber metal composite material. It is something.
本発明のカンチレバーはその比弾性率はアルミ
ニウムのそれより数倍も大きく、かつ製品の寸法
精度がよく、機械的強度が大であるので加工性が
よく、延性があるため曲げ加工、つぶし加工が容
易であり、しかも無害であるので取扱い中にも、
また廃棄後も環境汚染することがない。 The cantilever of the present invention has a specific elastic modulus several times larger than that of aluminum, has good dimensional accuracy, and has high mechanical strength, so it is easy to work with, and its ductility makes it easy to bend and crush. It is easy and harmless, so even during handling,
Furthermore, there is no environmental pollution even after disposal.
したがつて高性能のレコード再生をすることが
できる。 Therefore, high performance record playback is possible.
つぎに本発明の実施態様を述べる。 Next, embodiments of the present invention will be described.
実施例 １
平均直径５μの炭素繊維フイラメント（強度
300Kg/mm2、弾性率18t/mm2）12000本を一方向に並
べて束ね、その両端を取付治具に取りつけ緊張
し、これをオートクレーブ中で0.1mmHgに減圧
し、アルミニウム99wt％、チタニウム1wt％から
なる溶湯に浸漬したのち、75Kg/cm2で加圧し、つ
いで降圧したのち450℃になつたときとりだし
た。Example 1 Carbon fiber filament with an average diameter of 5μ (strength
300Kg/mm 2 , elastic modulus 18t/mm 2 ) 12,000 pieces are lined up in one direction and bundled, both ends are attached to a mounting jig and tensioned, and the pressure is reduced to 0.1mmHg in an autoclave, and aluminum is 99wt% and titanium is 1wt%. After being immersed in a molten metal consisting of , the pressure was increased to 75 kg/cm 2 , the pressure was lowered, and when the temperature reached 450°C, it was taken out.
得られた製品は0.8mmφ、炭素繊維が60容量％
占有し、その比弾性率は11300であつた。このカ
ンチレバーを使用して４チヤンネルレコードを再
生したところ、低音域から50kHz以上まで安定し
て分離よく再生できた。 The resulting product has a diameter of 0.8 mm and contains 60% carbon fiber by volume.
The specific elastic modulus was 11,300. When I used this cantilever to play back a 4-channel record, I was able to play it stably and with good separation from the low range to over 50kHz.
実施例 ２
平均直径５μの炭素繊維フイラメント（強度
300Kg/mm2、弾性率18t/mm2）を前処理として、塩化
チタン浴に浸漬し、高温加熱処理して表面をチタ
ンのカーバイトでコーテイングする。Example 2 Carbon fiber filament with an average diameter of 5μ (strength
300Kg/mm 2 , elastic modulus 18t/mm 2 ) as pretreatment, immersed in a titanium chloride bath, heated at high temperature, and coated the surface with titanium carbide.
これを取だし12000本を一方向に並べて束ね、
以下実施例１と同様にした。得られた製品は0.85
mmφ、炭素繊維が56容量％占有し、その比弾性率
は11100であつた。このカンチレバーを使用して
４チヤンネルレコードを再生したところ、低音域
から50kHz以上まで安定して分離よく再生でき
た。 I took these out and bundled 12,000 of them in one direction.
The following procedure was carried out in the same manner as in Example 1. The product obtained is 0.85
mmφ, carbon fiber occupied 56% by volume, and its specific elastic modulus was 11,100. When I used this cantilever to play back a 4-channel record, I was able to play it stably and with good separation from the low range to over 50kHz.
第１図、第２図および第３図は本発明の実施態
様のカンチレバーの拡大断面図を示す。
１，２１，３１；炭素繊維フイラメント、２，
２２，３２；メタル、２３；メタルのカーバイド
フイルム、３４；孔。
1, 2 and 3 show enlarged cross-sectional views of cantilevers according to embodiments of the invention. 1, 21, 31; carbon fiber filament, 2,
22, 32; metal; 23; metal carbide film; 34; hole.
Claims (1)
束ねて棒状もしくは管状に構成した構成体又は前
記構成体に比弾性率を高めるために前処理として
塩化チタン、塩化ジルコニウムもしくは塩化タン
グステン浴に浸漬し、高温加熱処理して炭素繊維
フイラメントの表面にこれら金属とのカーバイド
を生じさせ炭素繊維表面をこれら金属とのカーバ
イドでコーテイングさせ、アルミニウム、アルミ
ニウム合金、チタニウムもしくはチタニウム合金
浴に浸漬して得られる該金属又は合金を保有した
炭素繊維金属複合材からなるピツクアツプのカン
チレバー。1. A structure in which a large number of fine carbon fiber filaments are bundled in one direction to form a rod or tubular shape, or the structure is immersed in a titanium chloride, zirconium chloride or tungsten chloride bath as a pretreatment to increase the specific elastic modulus, The metal obtained by heating the carbon fiber filament at a high temperature to form carbides with these metals on the surface of the carbon fiber filament, coating the carbon fiber surface with the carbides with these metals, and immersing the carbon fiber in an aluminum, aluminum alloy, titanium or titanium alloy bath. Or a pick-up cantilever made of carbon fiber metal composite material containing an alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14918574A JPS5178201A (en) | 1974-12-28 | 1974-12-28 | KANCHIREBAA |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14918574A JPS5178201A (en) | 1974-12-28 | 1974-12-28 | KANCHIREBAA |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5178201A JPS5178201A (en) | 1976-07-07 |
| JPS6155164B2 true JPS6155164B2 (en) | 1986-11-26 |
Family
ID=15469646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14918574A Granted JPS5178201A (en) | 1974-12-28 | 1974-12-28 | KANCHIREBAA |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5178201A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02233861A (en) * | 1989-03-07 | 1990-09-17 | Diesel Kiki Co Ltd | Fuel injection pump |
-
1974
- 1974-12-28 JP JP14918574A patent/JPS5178201A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02233861A (en) * | 1989-03-07 | 1990-09-17 | Diesel Kiki Co Ltd | Fuel injection pump |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5178201A (en) | 1976-07-07 |
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