JPS58120394A - Production of speaker diaphragm - Google Patents
Production of speaker diaphragmInfo
- Publication number
- JPS58120394A JPS58120394A JP247582A JP247582A JPS58120394A JP S58120394 A JPS58120394 A JP S58120394A JP 247582 A JP247582 A JP 247582A JP 247582 A JP247582 A JP 247582A JP S58120394 A JPS58120394 A JP S58120394A
- Authority
- JP
- Japan
- Prior art keywords
- base material
- coating layer
- thin film
- metal
- layer
- 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
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R7/00—Diaphragms for electromechanical transducers; Cones
- H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
- H04R7/12—Non-planar diaphragms or cones
- H04R7/127—Non-planar diaphragms or cones dome-shaped
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
Abstract
Description
【発明の詳細な説明】
本発明はアルミニウム、チタン、ステンレスなどの金属
箔基材を所定の振動板形状に成形した後、その表面にプ
ラズマ溶射によ〕セラミックのコーティング層を形成し
て振動板とするスピーカ用振動板の製造方法の改良に関
する。Detailed Description of the Invention The present invention involves forming a metal foil base material such as aluminum, titanium, or stainless steel into a predetermined diaphragm shape, and then forming a ceramic coating layer on its surface by plasma spraying. The present invention relates to an improvement in a method of manufacturing a diaphragm for a speaker.
アルミニウム、チタン、ステンレスなどの金属を用−た
スピーカの＃ｉ動板にμ、その材質に基因する特定の振
動モードが庄じ、／４域の周波数特性に大きなビークｔ
−午じ、著るしく曾質を害するという欠点がある。この
欠点はヤング奉Ｅと密度Ｐの比で表わされる比弾性率Ｅ
／ｐの大きな材料愛用いることにより除去でき、その具
体的方法として、所定の振動板形状に成形した金属基材
の表面に、アルミナなどの金−の酸化物あるい１［化物
または炭化物などの、比弾性率の大きなセラミック材料
ｔプラズマ溶射してコーティング層を形成することが提
案されている。この方法は、＃Ｒ動板の比弾性率を比較
的簡単に大きくできるものであるが、プラズマ溶射によ
るコーティングｌ曽の形成において、プラズマフレーム
中のセラミック材料の完全浴−粒子をプラズマジェエト
で飛行速Ｋを与え、飛行粒子の４ｉｌｌＩ４基材への衝
突エネルギでコーティング層を形成するものであるので
、並楓基材の表面が硬いたとえばチタンなどの場合には
、付着強度が不足してコーティング層が剥離し、ｆｒ望
のの特性が得られな−とｉう欠点がある。この次め、従
来、金属基材の表面をブラスト処理によシ粗くして付着
力上強化して−るが、この場合には、ブラスト処理後長
くても２時間以内にプラズマ溶射を行わなければならず
、製造上、大きな時間的制約全うけるという欠点がある
。溶射粒子の速度を大きくしたシ、溶射距離を短か＜ｔ
、ｙｃｎしても付着力を強化できるが、溶射粒子の速ｔ
ｊｔｔ大きくすると、それにつれ溶射粒子の速度を大き
くすると、それにつれ溶射粒子の速りｔ大きくすると、
それにつれ溶射粒子のプラズマ７レーム中に滞留する時
間が短かくなって、未溶融粒子が大きくなったシ、すで
に堆積しているノーを後から来た溶融粒子が破壊した）
、することが知られてお）、コーチイングツ曽の厚さに
制約が生じ金属基材の厚さが大きくなって。The #i moving plate of a speaker made of metal such as aluminum, titanium, or stainless steel has μ, a specific vibration mode based on the material, and a large peak t in the frequency response in the /4 range.
- It has the disadvantage of seriously damaging the quality of the teeth. This drawback is caused by the specific elastic modulus E expressed as the ratio of the Young's density E and the density P.
/p can be removed by using a material with a large It has been proposed to form a coating layer by plasma spraying a ceramic material having a large specific elastic modulus. This method allows the specific elastic modulus of the #R moving plate to be relatively easily increased, but in forming the coating by plasma spraying, the complete bath of ceramic material in the plasma flame and the particles are treated with plasma jet. The coating layer is formed by giving a flight speed K and using the collision energy of the flying particles to the base material, so if the surface of the maple base material is hard, such as titanium, the adhesion strength is insufficient and the coating layer is formed. The disadvantage is that the layers may peel off, making it impossible to obtain the desired properties. Next, conventionally, the surface of the metal base material is roughened by blasting to strengthen its adhesion, but in this case, plasma spraying must be carried out within two hours at the most after the blasting. However, it also has the disadvantage of being subject to significant time constraints in manufacturing. Increase the speed of spray particles, shorten the spray distance <t
, ycn can also strengthen the adhesion, but the speed of sprayed particles t
When jtt is increased, the speed of the sprayed particles is increased accordingly, and the speed t of the sprayed particles is increased accordingly.
As time went by, the residence time of the sprayed particles in the plasma became shorter, the unmelted particles became larger, and the molten particles that came later destroyed the already deposited particles.)
, it is known that the thickness of the metal base material increases, resulting in constraints on the thickness of the coaching materials.
コーティング層を形成した効果が少ないものとなる欠点
があり、また、溶射距離を短かくすると、金属基材の温
藏上昇が大きくなって、金属基材に熱変形が生じたり、
金属基材自体が溶融した）するという欠点がある。There is a drawback that the effect of forming a coating layer is reduced, and when the spraying distance is shortened, the temperature increase of the metal base material increases, causing thermal deformation of the metal base material.
The disadvantage is that the metal base material itself melts.
本発明４＃ｉ上記のような従来の方法の欠点を除去しよ
うとするものである。The present invention 4#i is intended to eliminate the drawbacks of the conventional methods as described above.
本発明は、このため、金属基材とセラミックのコーティ
ング層の間に合金あるいは金属の酸化物、窒化物または
炭化物の薄膜ノーを設けて。The present invention therefore provides a thin film of alloy or metal oxide, nitride or carbide between the metal substrate and the ceramic coating layer.
コーティング層の付着力を強化するものである。This strengthens the adhesion of the coating layer.
以下１本発明の実施例を図によって説明する。An embodiment of the present invention will be described below with reference to the drawings.
まずｅｍ１図人に示すように、アルミニクム。First, as shown in figure em1, aluminum.
チタンまたはステンレスなどの数１ＯＩＩＩＩＩＳＯ板
厚の金属箔基材山ｔドーム形に成形し、゛つぎに。A metal foil base material made of titanium or stainless steel with a thickness of several OIII ISO is formed into a dome shape.
＃Ｉ１図Ｂに示すように、金属箔基材山の上面に合金（
Ｎｉ−Ａｔなど）あるいは金属の酸化＠（ＡｔｚＯｓ、
ＺａＯｚなど）、窒化１１Ｉｌ！Ｉ（ＴｉＮ、 Ａ、！
Ｎ など］または炭化物（Ｔｉｅ、 ＳｉＣなど）の薄
膜層（２）ｔ−イオンル−ティング、スパッタリング、
真空蒸着、メッキなどの方法によって１〜１０−の厚さ
、に形成し、さらに、第１図Ｃに示すように。#I1 As shown in Figure B, the alloy (
Ni-At, etc.) or metal oxidation@(AtzOs,
ZaOz, etc.), nitride 11Il! I(TiN, A,!
N, etc.] or carbide (Tie, SiC, etc.) thin film layer (2) t-ion routing, sputtering,
It is formed to a thickness of 1 to 10 mm by vacuum deposition, plating, etc., as shown in FIG. 1C.
薄膜Ｎ１１２１の表面に金属の酸化物（尤む０３など）
。Metal oxide (such as 03) on the surface of thin film N1121
.
などのセラミック材料をプラズマ溶射してコーティング
層１３）を形Ｆｉｔし、スピーカ用振動板とする。The coating layer 13) is formed by plasma spraying a ceramic material such as the above ceramic material, and is used as a diaphragm for a speaker.
上ｓｅ夾実施、すなわち、上面に薄膜層１２＋、セラミ
ックのコーティング層（３）を形成した金１１４箔基材
山の下面にもセラミックのコーティング層を形成してス
ピーカ用振動板とする場合には。In the case of carrying out upper se coating, that is, forming a ceramic coating layer on the lower surface of the gold 114 foil base material pile on which the thin film layer 12+ and ceramic coating layer (3) are formed on the upper surface to make a speaker diaphragm. .
第２図Ａ、ｌに示すように＊ ＃！ｔｌｌと同じ工程Ａ
、 Ｂ、 Ｃを経た後、工程り、 Ｅにょ９金属
箔基材＋１１の下面に１〜１０ｍｍの厚さの薄膜層＋２
１を形成してその上にセラミックのコーティング層１３
１をプラズマ溶射によ〕形成する。As shown in Figure 2 A, l * #! Same process A as tll
, B, and C, the process is as follows: A thin film layer with a thickness of 1 to 10 mm + 2 on the lower surface of the metal foil base material + 11.
1 and a ceramic coating layer 13 thereon.
1 by plasma spraying.
第３図は本発明、従来法それぞれによるセラミックのコ
ーティング層の付着力をプラズマ溶射短離との関係で示
し、実線は本発明によシ３０ｊ１１６の板厚のチタンの
約３−の厚さの薄膜層を形成し、その表面にアルミナを
２０−の厚さにプラズマ溶射し九場合のものであ１１点
線は従来法によ）３０μｍの厚さのチタンの表ｒｊ７Ｊ
ｔブラスト処理した直後アルミナ２ＬＪｓｍの厚さにプ
ラズマ溶射した一合のものである。この第３図から明ら
かなように２本発明により、セラミックのコーティング
層の付着力は着るしく向上した。FIG. 3 shows the adhesion of the ceramic coating layer according to the present invention and the conventional method in relation to the plasma spraying separation. A thin film layer was formed, and alumina was plasma sprayed on the surface to a thickness of 20 μm.
This is a piece of alumina that was plasma sprayed to a thickness of 2LJsm immediately after being blasted. As is clear from FIG. 3, the adhesion of the ceramic coating layer was significantly improved by the present invention.
なお１本発明の所定の＃Ｒ＠板形状に成形した金属箔基
材の表面に薄膜層を形成する。上記実施例以外の、ＷＩ
率な方法としてイオン窒化法がある。この方法Ｉ／ｉ、
低真空のガス雰囲気中でグロー放゛亀を発庄させ、プラ
ズマ化したガスイオンの衝突エネルギによって処理物の
加熱と化学反応を同時に行なうものであシ、真空蒸Ｍな
どに比べて短時間で剛性の高い薄膜＃を作ることができ
る。したがって、イオン窒化法によれば。Note that a thin film layer is formed on the surface of a metal foil base material formed into a predetermined #R@ plate shape according to the present invention. WI other than the above embodiments
Ion nitriding is an efficient method. This method I/i,
A glow radiator is generated in a low-vacuum gas atmosphere, and the collision energy of gas ions turned into plasma simultaneously heats the processed material and causes a chemical reaction, which takes a shorter time than vacuum evaporation. A highly rigid thin film # can be made. Therefore, according to the ion nitriding method.
プラズマ溶射の簡便さと相俟って、第１図Ａ〜Ｃの工程
を大幅に短幅できる。Coupled with the simplicity of plasma spraying, the steps shown in FIGS. 1A to 1C can be significantly shortened.
また１本発明の金属箔基材の形状が、上記実施例のドー
ム形状に限らず、コーン形状や平板でもよいことはいう
までもない。Furthermore, it goes without saying that the shape of the metal foil base material of the present invention is not limited to the dome shape of the above embodiment, but may be a cone shape or a flat plate.
以上のように１本発明によれば、セラミックのプラズマ
溶射距離を金ｌｌＩ４箔基材の熱変形が生じない範囲と
し、安定して、セラミックのコーティング層の付着力を
従来法のものに比べ大幅に向上できる。スピーカ用振動
板の製造方法が得られる。As described above, according to the present invention, the ceramic plasma spraying distance is set within a range that does not cause thermal deformation of the gold IlI4 foil base material, and the adhesion of the ceramic coating layer is stabilized and greatly increased compared to the conventional method. can be improved. A method for manufacturing a speaker diaphragm is obtained.
第１１１１．Ｃ／ｆｉ本発明の一実施例の各工程を示す
縦断面図、第２因Ａ、Ｒは本発明の他の実施例の各工程
を示す縦断面図、第３図は本発明。
従来法それぞれによるセラミックコーティング層の付着
力を示す図である。
山・・・金＠箔基材、 ＋２１−・・薄膜層、（３）・
・・セラミックコーティング層
第１図
第２図
４９３−
ｗＥ２図
濤身ｔｒｉｉ虻（りｎη１ンNo. 1111. C/fi is a longitudinal cross-sectional view showing each step of an embodiment of the present invention, second factors A and R are longitudinal cross-sectional views showing each step of another embodiment of the present invention, and FIG. 3 is a view of the present invention. It is a figure which shows the adhesion force of the ceramic coating layer by each conventional method. Mountain...Gold @ foil base material, +21-...Thin film layer, (3)...
...Ceramic coating layer Fig. 1 Fig. 2 493- wE2 Fig.
Claims (1)
工程と、上記成形金属箔基材の表向に合金あるいは金属
の酸化管、窒化物または炭化物の薄膜層を形成する第２
の工程と、上記薄膜層の表面にプラズマ溶射によりセラ
ミックのコーティング層を形成する第３の工程とから成
ることを特徴とするスピーカ用振動板の製造方法。 ＋２１ 金属の窒化物の薄膜層をイオン輩化法によ）
形成することを特徴とする特許請求の範囲第１積記械の
スピーカ用振動板の製造方法。[Claims] (1) A first step of forming a metal foil base material into a predetermined diaphragm shape, and forming a thin film of an alloy or metal oxidized tube, nitride or carbide on the surface of the formed metal foil base material. The second forming layer
A method for manufacturing a speaker diaphragm, comprising the steps of: and a third step of forming a ceramic coating layer on the surface of the thin film layer by plasma spraying. +21 Thin film layer of metal nitride by ion production method)
A method of manufacturing a diaphragm for a speaker of a first load-bearing machine as claimed in claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP247582A JPS58120394A (en) | 1982-01-11 | 1982-01-11 | Production of speaker diaphragm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP247582A JPS58120394A (en) | 1982-01-11 | 1982-01-11 | Production of speaker diaphragm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58120394A true JPS58120394A (en) | 1983-07-18 |
Family
ID=11530352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP247582A Pending JPS58120394A (en) | 1982-01-11 | 1982-01-11 | Production of speaker diaphragm |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58120394A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3535205A1 (en) * | 1984-10-03 | 1986-04-30 | Fujikura Ltd., Tokio/Tokyo | SPEAKER MEMBRANE |
| JPS61218298A (en) * | 1985-03-25 | 1986-09-27 | Pioneer Electronic Corp | Diaphragm for speaker |
| WO2006075238A2 (en) * | 2005-01-14 | 2006-07-20 | Element Six Limited | Coated speaker dome |
| CN108394144A (en) * | 2018-05-02 | 2018-08-14 | 陈舟 | A kind of high temperature resistant, low-thermal-bridge stainless steel group compound film |
-
1982
- 1982-01-11 JP JP247582A patent/JPS58120394A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3535205A1 (en) * | 1984-10-03 | 1986-04-30 | Fujikura Ltd., Tokio/Tokyo | SPEAKER MEMBRANE |
| DE3535205C2 (en) * | 1984-10-03 | 1994-09-01 | Sony Corp | Speaker cone |
| JPS61218298A (en) * | 1985-03-25 | 1986-09-27 | Pioneer Electronic Corp | Diaphragm for speaker |
| WO2006075238A2 (en) * | 2005-01-14 | 2006-07-20 | Element Six Limited | Coated speaker dome |
| WO2006075238A3 (en) * | 2005-01-14 | 2006-09-28 | Element Six Ltd | Coated speaker dome |
| JP2008527880A (en) * | 2005-01-14 | 2008-07-24 | エレメント シックス リミテッド | Coated rigid 3D component |
| JP4861993B2 (en) * | 2005-01-14 | 2012-01-25 | エレメント シックス リミテッド | Coated rigid 3D component |
| US8340341B2 (en) | 2005-01-14 | 2012-12-25 | Element Six Limited | Coated speaker dome |
| CN108394144A (en) * | 2018-05-02 | 2018-08-14 | 陈舟 | A kind of high temperature resistant, low-thermal-bridge stainless steel group compound film |
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