JPH0775436B2 - Method for manufacturing laminator diaphragm - Google Patents
Method for manufacturing laminator diaphragmInfo
- Publication number
- JPH0775436B2 JPH0775436B2 JP28391286A JP28391286A JPH0775436B2 JP H0775436 B2 JPH0775436 B2 JP H0775436B2 JP 28391286 A JP28391286 A JP 28391286A JP 28391286 A JP28391286 A JP 28391286A JP H0775436 B2 JPH0775436 B2 JP H0775436B2
- Authority
- JP
- Japan
- Prior art keywords
- diaphragm
- ceramic
- aluminum substrate
- aluminum
- manufacturing
- 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 - Lifetime
Links
- 238000000034 method Methods 0.000 title claims description 11
- 238000004519 manufacturing process Methods 0.000 title claims description 8
- 229910052782 aluminium Inorganic materials 0.000 claims description 18
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 18
- 239000000758 substrate Substances 0.000 claims description 16
- 239000000919 ceramic Substances 0.000 claims description 14
- 239000002253 acid Substances 0.000 claims description 4
- 239000000853 adhesive Substances 0.000 claims description 4
- 230000001070 adhesive effect Effects 0.000 claims description 4
- 239000012670 alkaline solution Substances 0.000 claims description 2
- 238000007654 immersion Methods 0.000 claims 1
- 239000010410 layer Substances 0.000 description 9
- 239000012790 adhesive layer Substances 0.000 description 5
- 238000004070 electrodeposition Methods 0.000 description 5
- 239000002585 base Substances 0.000 description 4
- 238000005524 ceramic coating Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000053 physical method Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- ANBBXQWFNXMHLD-UHFFFAOYSA-N aluminum;sodium;oxygen(2-) Chemical compound [O-2].[O-2].[Na+].[Al+3] ANBBXQWFNXMHLD-UHFFFAOYSA-N 0.000 description 1
- 238000007743 anodising Methods 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 229910052790 beryllium Inorganic materials 0.000 description 1
- ATBAMAFKBVZNFJ-UHFFFAOYSA-N beryllium atom Chemical compound [Be] ATBAMAFKBVZNFJ-UHFFFAOYSA-N 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229910001388 sodium aluminate Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 238000001771 vacuum deposition Methods 0.000 description 1
- 238000010290 vacuum plasma spraying Methods 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
Landscapes
- Diaphragms For Electromechanical Transducers (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明はスピーカに用いるラミネート振動板に関するも
のである。TECHNICAL FIELD The present invention relates to a laminated diaphragm used for a speaker.
（従来技術およびその問題点） 従来、スピーカ用振動板は天然繊維、合成繊維を抄造成
形して作るか、あるいはプラスチツクフイルム、金属
板、織布等を成形加工して作られたものが多く用いられ
ている。(Prior art and its problems) Conventionally, speaker diaphragms are often made by paper-forming natural fibers or synthetic fibers, or by molding plastic films, metal plates, woven fabrics, etc. Has been.
しかし、これらの振動板は弾性率が小さいため、良好な
周波数特性が得られなかつた。However, since these diaphragms have a small elastic modulus, good frequency characteristics could not be obtained.
これらを改善するために、弾性率が高い、ベリリウム、
アルミナ等を振動板の基体に真空蒸着、プラズマ溶射等
の物理的方法で製作することが開発されている。しか
し、物理的方法は高真空または高温下で処理するため製
造コストが高く量産に適さない欠点がある。In order to improve these, high elastic modulus, beryllium,
It has been developed to manufacture alumina or the like on a substrate of a diaphragm by a physical method such as vacuum deposition or plasma spraying. However, the physical method has a drawback that it is not suitable for mass production because the manufacturing cost is high because it is processed under high vacuum or high temperature.
また、化学的方法として、金属振動板にメツキする方
法、アルミニウム振動板の表面を陽極酸化する方法があ
るが、比弾性が低い欠点がある。その他、化学的蒸着法
でセラミツクス振動板を作成することが試みられている
が、製造コストが高いという欠点がある。Further, as a chemical method, there are a method of plating on a metal diaphragm and a method of anodizing the surface of the aluminum diaphragm, but there is a drawback that the specific elasticity is low. Other attempts have been made to make ceramics diaphragms by chemical vapor deposition, but they have the drawback of high manufacturing costs.
（問題点を解決するための手段） 本発明は上記欠点を除去するために提案されたもので、
アルミニウム基体の片面にセラミツクコートした２枚の
振動板基体のセラミツクコート面相互を接着剤で貼着し
た後、酸またはアルカリ液に浸漬してアルミニウム基体
を溶解除去することを特徴とするラミネート振動板の製
造方法を要旨とするもので、高弾性で内部接着層による
適度の内部損失を有するラミネート振動板の製造方法を
提供することを目的とする。(Means for Solving the Problems) The present invention has been proposed to eliminate the above-mentioned drawbacks,
Laminated diaphragm characterized in that two diaphragm plates having ceramic coating on one surface of an aluminum substrate are adhered to each other with an adhesive, and then the aluminum substrate is dissolved and removed by immersing in an acid or alkaline solution. The object of the present invention is to provide a method for manufacturing a laminated diaphragm having high elasticity and moderate internal loss due to an internal adhesive layer.
（実施例） 以下に本発明の実施例を図に沿つて説明する。なお、実
施例は一つの例示であつて、本発明の精神を逸脱しない
範囲で種々の変更あるいは改良を行いうることは言うま
でもない。(Example) Below, the Example of this invention is described along a figure. Needless to say, the embodiment is merely an example, and various modifications and improvements can be made without departing from the spirit of the present invention.
第１図ないし第４図は本発明の実施例を説明する図であ
る。第１図ないし第４図で示す工程に従つて説明する。
これらの図は振動板の半分を断面で示した側面図であ
る。第１図はラミネート振動板の外側となる部材で、ア
ルミニウム基体１の内側に電解析出法（電析法と略す）
によりセラミツクス層２をコーテイングしたものであ
る。電析法によるアルミニウム基体１のセラミツクスコ
ーテイングについては後で述べることとする。第２図は
ラミネート振動板の内側となる部材で、第１図とは反対
にアルミニウム基体１′の外側に電析法によりセラミツ
クス層２′をコーテイングしたものである。第１図およ
び第２図に示したラミネート振動板部材を準備し、第３
図において、第１図のラミネート振動板部材の内側に第
２図のラミネート振動板部材を接着剤で接着する。つま
り、第３図は外側からアルミニウム基体１、セラミツク
ス層２、接着剤層３、セラミツクス層２′およびアルミ
ニウム基体１′の順で５層から形成される。1 to 4 are views for explaining an embodiment of the present invention. The process will be described according to the steps shown in FIGS.
These figures are side views showing a half of the diaphragm in cross section. FIG. 1 shows a member on the outside of the laminated diaphragm, which is formed on the inside of the aluminum substrate 1 by electrolytic deposition (abbreviated as electrodeposition).
The ceramic layer 2 is coated with. The ceramic coating of the aluminum substrate 1 by the electrodeposition method will be described later. FIG. 2 shows a member which is the inner side of the laminated diaphragm, and contrary to FIG. 1, a ceramic layer 2'is coated on the outer side of the aluminum substrate 1'by an electrodeposition method. Prepare the laminated diaphragm member shown in FIG. 1 and FIG.
In the figure, the laminated diaphragm member of FIG. 2 is bonded to the inside of the laminated diaphragm member of FIG. 1 with an adhesive. That is, in FIG. 3, the aluminum base 1, the ceramics layer 2, the adhesive layer 3, the ceramics layer 2 ', and the aluminum base 1'are formed from five layers in this order from the outside.
次に、第３図で接着したラミネート振動板部材を酸また
はアルカリ液に浸漬して表面のアルミニウム基体１およ
び１′を溶解除去する。このアルミニウム基体１および
１′の溶解除去工程後洗浄する。Next, the laminated diaphragm member adhered in FIG. 3 is immersed in an acid or alkali solution to dissolve and remove the aluminum substrates 1 and 1'of the surface. Cleaning is performed after the step of dissolving and removing the aluminum substrates 1 and 1 '.
第４図はアルミニウム基体１および１′を溶解除去した
ラミネート振動板でセラミツクス層２および２′の中間
に接着剤層３が形成された３層構造のラミネート振動板
である。FIG. 4 shows a laminated diaphragm having a three-layer structure in which an aluminum substrate 1 and 1'is dissolved and removed, and an adhesive layer 3 is formed between the ceramic layers 2 and 2 '.
本発明により作製したラミネート振動板の物理的性質を
次表に示す。The physical properties of the laminated diaphragm produced according to the present invention are shown in the following table.
次いで、電析法について簡単に述べる。電析法の一例と
して、電解浴組成として、アルミン酸ナトリウム30/
水溶液を用い、アルミニウム基体１のセラミツクスコー
テイングしない面をレジスト材でマスクし、かつ鉄板を
陰極として浸漬し、陽極電流密度1A/dm2に保持しながら
直流電圧を連続的に印加する。20分間の通電でアルミニ
ウム基体１の片面に酸化アルミニウムのセラミツクス層
が厚さ４〜５μｍ形成される。このセラミツクスコーテ
イングの厚さは振動板の設計例えば重量、強度に応じて
必要な厚さとすればよい。 Next, the electrodeposition method will be briefly described. As an example of the electrodeposition method, as an electrolytic bath composition, sodium aluminate 30 /
A surface of the aluminum substrate 1 which is not coated with ceramics is masked with a resist material using an aqueous solution, and an iron plate is immersed as a cathode, and a DC voltage is continuously applied while maintaining an anode current density of 1 A / dm 2 . A ceramic layer of aluminum oxide having a thickness of 4 to 5 μm is formed on one surface of the aluminum substrate 1 by energizing for 20 minutes. The thickness of the ceramic coating may be a thickness required depending on the design of the diaphragm, such as weight and strength.
（発明の効果） 以上説明したように、本発明によればアルミニウム基体
の片面にセラミツクコートした２枚の振動板基体のセラ
ミツクコート面相互を接着剤で貼着した後、酸またはア
ルカリ液に浸漬してアルミニウム基体を溶解除去するこ
とにより、高弾性で内部接着剤層による適当な内部損失
を存するラミネート振動板を作成することができる。(Effects of the Invention) As described above, according to the present invention, after the ceramic coated surfaces of the two diaphragm bases ceramic-coated on one side of the aluminum base are adhered to each other with an adhesive, they are immersed in an acid or alkali solution. Then, the aluminum substrate is dissolved and removed, whereby a laminated diaphragm having high elasticity and having appropriate internal loss due to the internal adhesive layer can be prepared.
第１図ないし第４図は本発明の製造工程を説明する図で
ある。 1,1′……アルミニウム基体,2,2′……セラミツクス
層、３……接着材層1 to 4 are views for explaining the manufacturing process of the present invention. 1,1 ′ …… Aluminum substrate, 2,2 ′ …… Ceramics layer, 3 …… Adhesive layer
Claims (1)
トした２枚の振動板基体のセラミツクコート面相互を接
着剤で貼着した後、酸またはアルカリ液に浸漬してアル
ミニウム基体を溶解除去することを特徴とするラミネー
ト振動板の製造方法。1. An aluminum substrate, one surface of which is ceramic-coated, and two ceramic substrate surfaces that are ceramic-coated are adhered to each other with an adhesive, and then the aluminum substrate is dissolved and removed by immersion in an acid or alkaline solution. A method for manufacturing a laminated diaphragm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28391286A JPH0775436B2 (en) | 1986-11-27 | 1986-11-27 | Method for manufacturing laminator diaphragm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28391286A JPH0775436B2 (en) | 1986-11-27 | 1986-11-27 | Method for manufacturing laminator diaphragm |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63136799A JPS63136799A (en) | 1988-06-08 |
| JPH0775436B2 true JPH0775436B2 (en) | 1995-08-09 |
Family
ID=17671799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP28391286A Expired - Lifetime JPH0775436B2 (en) | 1986-11-27 | 1986-11-27 | Method for manufacturing laminator diaphragm |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0775436B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100980029B1 (en) * | 2009-05-04 | 2010-09-07 | (주)씨스이엔지 | The advanced wastewater treatment apparatus with movable dividers |
-
1986
- 1986-11-27 JP JP28391286A patent/JPH0775436B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63136799A (en) | 1988-06-08 |
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