JPH0425854B2 - - Google Patents
Info
- Publication number
- JPH0425854B2 JPH0425854B2 JP59279016A JP27901684A JPH0425854B2 JP H0425854 B2 JPH0425854 B2 JP H0425854B2 JP 59279016 A JP59279016 A JP 59279016A JP 27901684 A JP27901684 A JP 27901684A JP H0425854 B2 JPH0425854 B2 JP H0425854B2
- Authority
- JP
- Japan
- Prior art keywords
- layer
- fiber layer
- soundproofing
- gas
- present
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D99/00—Subject matter not provided for in other groups of this subclass
- B29D99/001—Producing wall or panel-like structures, e.g. for hulls, fuselages, or buildings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
- B29C43/20—Making multilayered or multicoloured articles
- B29C43/203—Making multilayered articles
- B29C43/206—Making multilayered articles by pressing the material between two preformed layers, e.g. deformable layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
- B29K2105/08—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns
- B29K2105/0809—Fabrics
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Laminated Bodies (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
Description
【発明の詳細な説明】
〔発明の技術分野〕
本発明はシリンダヘツドカバー、エンジンルー
ムなどの防音材として用いられる防音材の製造方
法、詳しくは生産性が良好な防音材の製造方法に
関するものである。[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a method for manufacturing a soundproofing material used as a soundproofing material for cylinder head covers, engine rooms, etc., and more specifically, to a method for manufacturing a soundproofing material with good productivity. be.
従来の防音材の製造方法をシリンダヘツドカバ
ーを例にとつて説明すると、アルミ、鋳鉄等のヘ
ツドカバー本体１に、この本体１に対応する形状
にあらかじめ成型したグラスウールなどの吸音材
層２を積層し、さらに同様に対応形状に成形した
金属あるいは剛性樹脂製の防音カバー３を被せ、
一体カバーして製造している。
To explain the conventional manufacturing method of soundproofing materials using a cylinder head cover as an example, a head cover body 1 made of aluminum, cast iron, etc. is laminated with a layer 2 of sound absorbing material such as glass wool, which is pre-formed into a shape corresponding to this body 1. , further covered with a soundproof cover 3 made of metal or rigid resin similarly molded into a corresponding shape,
Manufactured with an integrated cover.
しかしながら、このような防音材の製造方法に
よればヘツドカバー本体１、防音層２および防音
カバー３をそれぞれ別個に成形し、これあを重ね
合せて製造しているため、工程数が多く、生産製
が低いという欠点があつた。 However, according to this method of manufacturing soundproofing materials, the head cover body 1, the soundproofing layer 2, and the soundproofing cover 3 are each molded separately and then stacked on top of each other. The disadvantage was that it was low.
本発明は上述の点に鑑みなされたもので、製造
工程数を省き、生産製を向上せしめることにより
コストを低減した防音材の製造方法を提供するこ
とを目的とする。
The present invention has been made in view of the above-mentioned points, and an object of the present invention is to provide a method for manufacturing a soundproofing material that reduces costs by omitting the number of manufacturing steps and improving production efficiency.
本発明を概説すれば、本発明による防音材の製
造方法は樹脂シート間に、ガス発生剤を混入した
繊維層を挟着して複合材を形成し、その後この混
合材を熱プレスにより所望形状に成型すると同時
に、前記繊維層にガスを発生させて密封された吸
音層を形成させることを特徴とするものである。
To summarize the present invention, the method for producing a soundproofing material according to the present invention involves sandwiching a fiber layer mixed with a gas generating agent between resin sheets to form a composite material, and then heat-pressing this mixed material into a desired shape. The invention is characterized in that at the same time as the fiber layer is molded, a gas is generated in the fiber layer to form a sealed sound absorbing layer.
本発明によれば、樹脂シート間に、ガス発生剤
を混入した繊維層を挟着した複合材を熱プレスし
て、所望形状に成形すると同時にガスを発生させ
て吸音層を形成させるので、従来のようにあらか
じめ成形した吸音層を順次組合せて一体化する必
要がなく、一工程において所望形状の防音材を製
造することができる。このため製造コストを大幅
に削減しえるという利点がある。 According to the present invention, a composite material in which a fiber layer mixed with a gas generating agent is sandwiched between resin sheets is hot-pressed and molded into a desired shape, and at the same time gas is generated to form a sound absorbing layer. There is no need to sequentially combine and integrate pre-formed sound absorbing layers as in the above method, and a sound insulating material having a desired shape can be manufactured in one step. Therefore, there is an advantage that manufacturing costs can be significantly reduced.
本発明をさらに詳しく説明する。 The present invention will be explained in more detail.
本発明による防音材の製造方法にあつては、ま
ず樹脂シート間にガス発生剤を混入した繊維層を
挟着し、複合材を製造する。 In the method for producing a soundproofing material according to the present invention, first, a fiber layer mixed with a gas generating agent is sandwiched between resin sheets to produce a composite material.
前記樹脂シートは本発明において限定されるも
のではなく、たとえばナイロン、ポリプロピレン
などの熱可塑性樹脂、フエノール、ポリエステ
ル、エポキシなどの熱硬化性樹脂であることがで
きる。またこの樹脂シートは前述の樹脂にガラス
繊維などの無機繊維、ガラスクロスなどの強化材
を混入した強化プラステイツクであることができ
る。 The resin sheet is not limited in the present invention, and may be, for example, a thermoplastic resin such as nylon or polypropylene, or a thermosetting resin such as phenol, polyester, or epoxy. Further, this resin sheet may be a reinforced plastic sheet made by mixing inorganic fibers such as glass fibers or reinforcing materials such as glass cloth with the above-mentioned resin.
この樹脂シートに挟着される繊維層に形成する
材料も本発明において基本的に限定されるもので
はない。たとえば、グラスウール、ロツクウール
などの無機繊維の他、有機繊維なども有効に用い
うる。 The material for forming the fiber layer sandwiched between the resin sheets is also not fundamentally limited in the present invention. For example, in addition to inorganic fibers such as glass wool and rock wool, organic fibers can also be effectively used.
前記のような繊維層に混入されるガス発生剤と
しては熱の作用によりガスを発生させるものであ
ればいかなるものでもよい。たとえば炭酸アンモ
ニウム、炭酸水素ナトリウムなどのように熱分解
によつてガスを発生させる物質を用いることがで
きる。 The gas generating agent mixed into the fiber layer as described above may be any agent as long as it generates gas by the action of heat. For example, substances that generate gas by thermal decomposition, such as ammonium carbonate and sodium hydrogen carbonate, can be used.
このような複合剤を熱プレスにより所望形状に
成形するとともに、前記繊維層に今夕されたガス
発生剤によりガスを発生させ、樹脂シート中に密
封された吸音層を形成させる。 Such a composite agent is molded into a desired shape by hot pressing, and a gas is generated by the gas generating agent applied to the fiber layer to form a sealed sound absorbing layer in the resin sheet.
このように熱プレスにより所望形状への成形と
同時に吸音層の形成を同時に行うのであるから、
この時の熱プレス温度は、本来の熱成形条件とと
もに、ガス発生剤の熱分解などの条件を同時に充
足させる必要がある。 In this way, the sound-absorbing layer is formed at the same time as the molding into the desired shape by heat pressing.
The hot press temperature at this time needs to satisfy not only the original thermoforming conditions but also the conditions for thermal decomposition of the gas generating agent.
第３図は本発明の方法によりシートヘツドカバ
ーを製造する場合の概略説明図である。
FIG. 3 is a schematic illustration of manufacturing a seat head cover by the method of the present invention.
まず樹脂シート３１，３１間にガラスウールに
ガス発生剤を混入した繊維層３２を挟着した。 First, a fiber layer 32 made of glass wool mixed with a gas generating agent was sandwiched between the resin sheets 31, 31.
次に熱プレス３３により適正な圧力温度を加え
て前記複合材を熱成形すると同時にガスを発生さ
せた。このとき、樹脂シート３１，３１の周縁３
１０，３１０同志を熱溶着して密封された吸音層
３４を形成せしめた。 Next, appropriate pressure and temperature were applied using a hot press 33 to thermoform the composite material and simultaneously generate gas. At this time, the peripheral edge 3 of the resin sheets 31, 31
10 and 310 were thermally welded together to form a sealed sound absorbing layer 34.
繊維層３２で発生したガスは成形中の樹脂シー
ト層３５′を外方向に脹らませ、成形型のキヤビ
テイ内に密着する作用を行う。 The gas generated in the fiber layer 32 causes the resin sheet layer 35' to swell outward during molding, thereby causing the resin sheet layer 35' to adhere tightly to the inside of the mold cavity.
製造された防音カバーは第４図に示すように、
樹脂製表皮３５およびこの表皮３５に密封され、
かつガス層と繊維層からなる吸音層３４よりなつ
ている。この防音層は遮音などの防音作用の他、
断熱、防振の作用も営む。 The manufactured soundproof cover is shown in Figure 4.
A resin skin 35 and sealed in this skin 35,
It also consists of a sound absorbing layer 34 consisting of a gas layer and a fiber layer. This soundproofing layer has a soundproofing effect such as soundproofing, as well as
It also acts as a heat insulator and anti-vibration.
本発明によれば、樹脂シート間に、ガス発生剤
を混入した繊維層を挟着した複合材を熱プレスし
て、所望形状に成形すると同時にガスを発生させ
て吸音層を形成させるので、従来のようにあらか
じめ成形した吸音層を順次組合せて一体化する必
要がなく、一工程において所望形状の防音材を製
造することができる。このため製造コストを大幅
に削減しえるという利点がある。
According to the present invention, a composite material in which a fiber layer mixed with a gas generating agent is sandwiched between resin sheets is hot-pressed and molded into a desired shape, and at the same time gas is generated to form a sound absorbing layer. There is no need to sequentially combine and integrate pre-formed sound absorbing layers as in the above method, and a sound insulating material having a desired shape can be manufactured in one step. Therefore, there is an advantage that manufacturing costs can be significantly reduced.
第１図ａ，ｂ，ｃは従来の防音材の製造方法を
説明するための説明図、第２図は従来の防音材の
構造を示す断面図、第３図は本発明の方法の実施
例を説明するための説明図、第４図は前述の実施
例によつて製造された防音カバーの構造を示す断
面図である。
１……シリンダヘツド本体、２……吸音層、３
……防音カバー、３１……樹脂シート、３２……
繊維層、３３……熱プレス、３４……吸音層、３
５……表皮。
Figures 1 a, b, and c are explanatory diagrams for explaining the conventional method for manufacturing soundproofing materials, Figure 2 is a sectional view showing the structure of the conventional soundproofing material, and Figure 3 is an example of the method of the present invention. FIG. 4 is a cross-sectional view showing the structure of the soundproof cover manufactured according to the above embodiment. 1...Cylinder head body, 2...Sound absorption layer, 3
...Soundproof cover, 31...Resin sheet, 32...
Fiber layer, 33... Heat press, 34... Sound absorbing layer, 3
5... Epidermis.
Claims (1)
層を挟着して複合材を形成し、その後この混合材
を熱プレスにより所望形状に成型すると同時に、
前記繊維層にガスを発生させて密封された吸音層
を形成させることを特徴とする防音材の製造方
法。1. A fiber layer mixed with a gas generating agent is sandwiched between resin sheets to form a composite material, and then this mixed material is molded into a desired shape by hot pressing, and at the same time,
A method for producing a soundproofing material, comprising: generating a gas in the fiber layer to form a sealed sound-absorbing layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59279016A JPS61154831A (en) | 1984-12-27 | 1984-12-27 | Manufacture of sound insulation material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59279016A JPS61154831A (en) | 1984-12-27 | 1984-12-27 | Manufacture of sound insulation material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61154831A JPS61154831A (en) | 1986-07-14 |
| JPH0425854B2 true JPH0425854B2 (en) | 1992-05-01 |
Family
ID=17605214
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59279016A Granted JPS61154831A (en) | 1984-12-27 | 1984-12-27 | Manufacture of sound insulation material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61154831A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2729603B1 (en) * | 1995-01-20 | 1997-04-18 | Reydel Sa | METHOD FOR MANUFACTURING A MULTILAYER OBJECT |
| US6749782B2 (en) * | 2002-07-26 | 2004-06-15 | Sun Own Industrial Co., Ltd. | Forming method of a foam board |
| FR2957552B1 (en) * | 2010-03-22 | 2014-05-23 | Latecoere | METHOD FOR MANUFACTURING A THERMALLY INSULATING WINDOW FOR AN ELECTRICAL WINDOW, IN PARTICULAR FOR AN AIRCRAFT, AND A REALIZED SEPARATION WINDOW |
| US9093060B2 (en) | 2011-01-26 | 2015-07-28 | Nichias Corporation | Sound-proof material and process for production thereof, sound-proof molding, and sound insulation method |
-
1984
- 1984-12-27 JP JP59279016A patent/JPS61154831A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61154831A (en) | 1986-07-14 |
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