JPH0482951A - Production of soundproofing material composed of inorganic fiber - Google Patents
Production of soundproofing material composed of inorganic fiberInfo
- Publication number
- JPH0482951A JPH0482951A JP2189431A JP18943190A JPH0482951A JP H0482951 A JPH0482951 A JP H0482951A JP 2189431 A JP2189431 A JP 2189431A JP 18943190 A JP18943190 A JP 18943190A JP H0482951 A JPH0482951 A JP H0482951A
- Authority
- JP
- Japan
- Prior art keywords
- inorganic fiber
- soundproofing material
- molded
- thin
- shape
- 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.)
- Granted
Links
- 239000000463 material Substances 0.000 title claims abstract description 34
- 239000012784 inorganic fiber Substances 0.000 title claims abstract description 25
- 238000004519 manufacturing process Methods 0.000 title claims description 15
- 238000000465 moulding Methods 0.000 claims abstract description 18
- 238000000034 method Methods 0.000 claims abstract description 17
- 238000005520 cutting process Methods 0.000 claims abstract description 15
- 239000011347 resin Substances 0.000 claims abstract description 9
- 229920005989 resin Polymers 0.000 claims abstract description 9
- 229920001187 thermosetting polymer Polymers 0.000 claims abstract description 8
- 238000004080 punching Methods 0.000 claims description 11
- 239000011810 insulating material Substances 0.000 claims 3
- 239000012774 insulation material Substances 0.000 claims 2
- 238000009966 trimming Methods 0.000 abstract description 4
- 230000006835 compression Effects 0.000 abstract description 3
- 238000007906 compression Methods 0.000 abstract description 3
- 239000003365 glass fiber Substances 0.000 description 6
- 239000000835 fiber Substances 0.000 description 5
- 238000000748 compression moulding Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 239000004745 nonwoven fabric Substances 0.000 description 2
- 239000005011 phenolic resin Substances 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Landscapes
- Treatment Of Fiber Materials (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Moulding By Coating Moulds (AREA)
- Nonwoven Fabrics (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は例えば自動車、鉄道車両等の車両や、建築用の
防音材として用いられる無機質繊維防音材の製造方法に
関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method for manufacturing an inorganic fiber soundproofing material used as a soundproofing material for vehicles such as automobiles and railway cars, and for buildings.
（従来の技術）
従来、この種の無機質繊維防音材の製造方法としては、
例えば、成型用金型を用いて未硬化の熱硬化性樹脂を付
着させた無機質繊維フリスを加熱状態で所定の防音材形
状に圧縮成形し、その後トリム処理用金型を用いてその
外周をトリム処理する方法や、開繊状態の繊維成分を用
いる嵩高性不織布防音材の製造方法に関するものである
が、特公平１−１５６１９号に開示されるように、未硬
化の熱硬化性樹脂を付着させた開繊状態の無機質繊維フ
リースを、加熱して該樹脂成分の一部を熱融着して得た
嵩高性不織布に加熱状態の押し切り刃を備えた金型を用
いて所定の防音材形状に圧縮成形しつつ該押し切り刃で
トリム処理する方法が知られている。(Prior art) Conventionally, as a manufacturing method for this type of inorganic fiber soundproofing material,
For example, an inorganic fiber fris coated with uncured thermosetting resin is compression-molded into a predetermined soundproofing material shape using a molding mold, and then the outer periphery is trimmed using a trimming mold. As disclosed in Japanese Patent Publication No. 1-15619, there is a method for producing a bulky nonwoven soundproofing material using fiber components in an opened state. A bulky nonwoven fabric obtained by heating the opened inorganic fiber fleece and heat-sealing a part of the resin component thereto is shaped into a predetermined soundproofing material shape using a mold equipped with a heated push-cutting blade. A method is known in which compression molding is performed and trim processing is performed using the push cutter.
（発明が解決しようとする課題）
前記従来法の場合、前者の場合は成形処理とトリム処理
とを別工程で行う必要があり、また、後者の場合、成形
処理とトリム処理とを同時に行うので生産速度において
は優れるものの、成形と同時に加熱状態の成形体に加熱
状態の押し切り刃を当てがいトリム処理をすることを必
須とするため、特にガラス繊維等の無機質繊維を用いる
場合、得られる防音材の外周が硬質で且つ鋭利なエツジ
状になりすぎるため、取扱い性が悪いという不都合を有
する。(Problems to be Solved by the Invention) In the case of the conventional method, in the former case, the molding process and the trim process must be performed in separate processes, and in the latter case, the molding process and the trim process are performed at the same time. Although it is superior in terms of production speed, it is essential to perform trimming by applying a heated push-cut blade to the heated molded product at the same time as molding, especially when using inorganic fibers such as glass fiber. Since the outer periphery is too hard and has too sharp edges, it has the disadvantage of poor handling.
また、両者とも複数の防音材を打抜く場合、加熱金型上
で各防音材形状の成形体に分離してしまい、金型からの
取りだしが不便であるという不都合を有する。Furthermore, when punching a plurality of soundproofing materials, both of them have the disadvantage that they separate into molded bodies shaped like each soundproofing material on a heating mold, making it inconvenient to take them out from the mold.
本発明は前記従来法の不都合を解消した、無機質繊維防
音材の製造方法を提供することを目的とする。An object of the present invention is to provide a method for manufacturing an inorganic fiber soundproofing material that eliminates the disadvantages of the conventional method.
（課題を解決するための手段）
押し切り刃を備えた金型を用いて未硬化の熱硬化性樹脂
を付着させた無機質繊維フリースを加熱状態で所定の防
音材形状に圧縮成形する無機質繊維防音材の製造方法で
あって、該フリスを防音材形状の外周部に薄肉部を残す
ようにして圧縮成形して成形体となし、その後、該成形
体から薄肉部において防音材形状に型抜きすることを特
徴とする。(Means for solving the problem) An inorganic fiber soundproofing material in which an inorganic fiber fleece to which an uncured thermosetting resin is attached is compression-molded into a predetermined soundproofing material shape under heating using a mold equipped with a push-cutting blade. A method for producing a soundproofing material, which comprises compression molding the fris to form a molded body so as to leave a thin-walled part on the outer periphery of the soundproofing material shape, and then cutting the molded body into a soundproofing material shape at the thin-walled part. It is characterized by
また、該フリースを薄肉部において連なる複数個の防音
材形状に圧縮成形した成形体に形成してもよいし、また
、その場合に該薄肉部をミレン切状に残すようにしても
よい。Further, the fleece may be formed into a molded body by compression molding into the shape of a plurality of soundproofing materials connected in a thin portion, or in this case, the thin portion may be left in a millet-cut shape.
本発明で使用する、無機質繊維としては、ガラス繊維、
セラミック繊維等が挙げられる。Inorganic fibers used in the present invention include glass fibers,
Examples include ceramic fibers.
また、開繊状の繊維を用いると、嵩高性は増すが、本発
明の場合は薄肉部における型抜きを行うため、得られる
防音利の外周縁表面を平滑に仕上げることが出来ず、高
級仕様の防音利の製造の場合は好ましくない。In addition, if spread fibers are used, the bulkiness increases, but in the case of the present invention, die-cutting is performed in the thin section, so the outer peripheral surface of the resulting soundproofing material cannot be finished smoothly, and it is not possible to achieve high-grade specifications. This is not desirable in the case of manufacturing soundproofing products.
また熱硬化性樹脂としては、フェノール樹脂、エポキシ
樹脂等を用い、無機質繊維に対する付着量は５〜２０重
量％程度とする。Further, as the thermosetting resin, phenol resin, epoxy resin, etc. are used, and the amount of adhesion to the inorganic fibers is about 5 to 20% by weight.
前記無機質繊維と未硬化の熱硬化性樹脂から得られる無
機質繊維フリースは面密度２００〜２０００ｇ／＋ｎ２
、厚さ１０〜２００ ｍ／ｍ程度とするのが好ましい。The inorganic fiber fleece obtained from the inorganic fibers and uncured thermosetting resin has an areal density of 200 to 2000 g/+n2.
, the thickness is preferably about 10 to 200 m/m.
成形温度は、一般には１５０〜２５０℃程度、成形圧力
は０． ２〜２０ｋｇ／ｃｍ ２程度、成形時間は３０
〜３００秒程度とする。The molding temperature is generally about 150 to 250°C, and the molding pressure is 0. 2~20kg/cm2, molding time is 30
~300 seconds.
また、型抜きを行うときの打ち抜き圧力は５０〜２５０
ｋｇ／ｃｍ程度とする。In addition, the punching pressure when cutting the mold is 50 to 250
It should be about kg/cm.
薄肉部の厚さは、使用する無機質繊維によっても左右さ
れるが、一般的には取扱い強度、鋭利性排除の観点から
０．２〜１．０ｍｌ１１程度とする。Although the thickness of the thin portion depends on the inorganic fibers used, it is generally about 0.2 to 1.0 ml from the viewpoint of handling strength and eliminating sharpness.
尚、押し切り刃の刃先角度は９０〜６０’程度が好まし
い。In addition, the cutting edge angle of the push-cutting blade is preferably about 90 to 60'.
尚、成形工程と打ち抜き工程を連続して行っても良いが
、成形工程のみを連続して行い、多数の成形体を製造し
、その後で打ち抜き工程を連続して行うようにしても良
い。Note that the molding step and the punching step may be performed continuously, but it is also possible to perform only the molding step continuously to produce a large number of molded bodies, and then perform the punching step continuously.
（作 用）
成形工程において成形硬化されたフリースの防音材形状
の外周に残された薄肉部は、打ち抜き工程で切断され、
鋭利なエッヂ部を残すこと無く防音材形状に打抜かれる
。(Function) The thin part left on the outer periphery of the shape of the soundproofing material of the fleece that has been molded and hardened in the molding process is cut off in the punching process.
The soundproofing material is punched into the shape without leaving any sharp edges.
成形工程から打ち抜き工程に移行する前に成形体を加熱
状態の金型から取り除く場合は、薄肉部を利用して取扱
える。When removing the molded product from the heated mold before moving from the molding process to the punching process, the thin-walled part can be used to handle it.
該フリースを薄肉部において連なる複数個の防音材形状
に圧縮成形した成形体に形成した場合は、加熱状態の金
型からの除去が更に容易に行え、しかも該薄肉部をミレ
ン切状に残す場合は金型からの除去後の打ち抜きが容易
に行える。If the fleece is formed into a molded body that is compression-molded into the shape of a plurality of soundproofing materials connected in the thin-walled part, it can be more easily removed from the heated mold, and the thin-walled part can be left in the shape of a millennium cut. can be easily punched out after removal from the mold.
（実施例）
以下、本発明無機質繊維防音材の製造方法を実施例に付
き説明する。(Example) Hereinafter, the method for manufacturing the inorganic fiber soundproofing material of the present invention will be described with reference to Examples.
繊維径７μ、繊維長３０ｍｍ程度のガラス繊維に水性フ
ェノール樹脂をスプレーガンで１０重量％程度付着させ
プリプレグ状ガラス繊維フリースを得た。尚、得られた
ガラス繊維フリースの面密度は６００ ｇ／ｍ ２、厚
さ１００ ｍ／ｍ程度であった。About 10% by weight of an aqueous phenol resin was applied to glass fibers having a fiber diameter of 7 μm and a fiber length of about 30 mm using a spray gun to obtain a prepreg-like glass fiber fleece. Note that the obtained glass fiber fleece had an areal density of 600 g/m 2 and a thickness of about 100 m/m.
次に、該ガラス繊維フリースの上面に目付５０ｇ／ｍ２
のポリエステル不織布を重ね、上金型に刃先角度９０°
の押し切り刃を備えた金型を用いて、金型温度２００′
Ｃ，成形圧力０．５ｋｇ／Ｑｍ ２、成形時間７０秒の
条件で圧縮成形を行った。Next, the upper surface of the glass fiber fleece was coated with a fabric weight of 50 g/m2.
Layer the polyester non-woven fabric and set the cutting edge angle to the upper mold at 90°
Using a mold equipped with a push-cut blade, the mold temperature was 200'.
C. Compression molding was performed under the conditions of a molding pressure of 0.5 kg/Qm 2 and a molding time of 70 seconds.
得られた成形体の薄肉部の厚みは約０． ５ｍ／ｍであ
った。The thickness of the thin part of the obtained molded body was approximately 0. It was 5m/m.
次いで、得られた成形体を同じ金型を用いて、約２００
ｋｇ／ｃｍの打ち抜き圧力で打ち抜き処理した。Next, using the same mold, the obtained molded body was molded to about 200
Punching was performed at a punching pressure of kg/cm.
得られた、防音材の端部は、鋭利なエツジ状にならずに
、トリム処理されていた。The ends of the resulting soundproofing material were trimmed without forming sharp edges.
（発明の効果）
このように、本発明の無機質繊維防音材の製造方法によ
れば、押し切り刃を備えた金型を用いて未硬化の熱硬化
性樹脂を付着させた無機質繊維フリースを防音月形状の
外周部に薄肉部を残すようにして圧縮成形して成形体と
なし、その後、該成形体から薄肉部において防音月形状
に型抜きするようにしたので、鋭利なエッヂ部を残すこ
と無くしかも成形用金型とトリム処理用金型を兼用にし
て防音材を製造できる効果を有する。(Effects of the Invention) As described above, according to the method for producing an inorganic fiber soundproofing material of the present invention, an inorganic fiber fleece to which an uncured thermosetting resin is attached is made into a soundproofing material using a mold equipped with a cutting blade. A molded body is compression molded leaving a thin wall on the outer periphery of the shape, and then a soundproof moon shape is cut from the molded body at the thin wall, so no sharp edges are left behind. Moreover, it has the effect that the soundproofing material can be manufactured by using both the molding mold and the trimming mold.
また、成形工程から打ち抜き工程に移行する前に成形体
を加熱状態の金型から取り除く場合は、薄肉部を利用し
て取扱うことができるので、取扱い性に優れ、特に、該
フリースを薄肉部において連なる複数個の防音月形状に
圧縮成形した成形体に形成した場合は、更に加熱状態の
金型からの除去が容易に行え、しかも該薄肉部をミレン
切状に残す場合は金型からの除去後の打ち抜きが容易に
行えるので、生産性に優れる等の効果を有する。In addition, when removing the molded object from the heated mold before moving from the molding process to the punching process, the thin part can be used to handle it, so it is easy to handle. If the molded body is compression molded into a series of multiple soundproof moon shapes, it can be easily removed from the heated mold, and if the thin wall portion is left in the shape of a millennium cut, it can be easily removed from the mold. Since subsequent punching can be easily performed, it has effects such as excellent productivity.
外３名3 other people
Claims (4)
樹脂を付着させた無機質繊維フリースを加熱状態で所定
の防音材形状に圧縮成形する無機質繊維防音材の製造方
法であって、該フリースを防音材形状の外周部に薄肉部
を残すようにして圧縮成形して一旦成形体となし、その
後、該成形体から薄肉部において防音材形状に型抜きす
ることを特徴とする無機質繊維防音材の製造方法。1. A method for producing an inorganic fiber sound insulation material, in which an inorganic fiber fleece to which an uncured thermosetting resin is attached is compression-molded into a predetermined shape of the sound insulation material in a heated state using a mold equipped with a push-cutting blade, the method comprising: An inorganic fiber sound insulating material characterized in that it is compression-molded to leave a thin wall part on the outer periphery of the sound insulating material shape to form a molded body, and then the molded body is die-cut into the shape of the sound insulating material at the thin wall part. manufacturing method.
形状に圧縮成形した成形体に形成することを特徴とする
請求項１記載の無機質繊維防音材の製造方法。2. 2. The method of manufacturing an inorganic fiber soundproofing material according to claim 1, wherein the fleece is compression-molded into a plurality of soundproofing material shapes connected in a thin portion.
項２記載の無機質繊維防音材の製造方法。3. 3. The method for producing an inorganic fiber soundproofing material according to claim 2, wherein the thin wall portion is left in a millet-cut shape.
抜き圧力を５０〜２５０ｋｇ／ｃｍ程度とすることを特
徴とする請求項１乃至３の何れかに記載の無機質繊維防
音材の製造方法。4. 4. The method for producing an inorganic fiber soundproofing material according to claim 1, wherein the molding pressure is approximately 0.2 to 20 kg/cm^2, and the punching pressure is approximately 50 to 250 kg/cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2189431A JP2829776B2 (en) | 1990-07-19 | 1990-07-19 | Manufacturing method of inorganic fiber soundproofing material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2189431A JP2829776B2 (en) | 1990-07-19 | 1990-07-19 | Manufacturing method of inorganic fiber soundproofing material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0482951A true JPH0482951A (en) | 1992-03-16 |
| JP2829776B2 JP2829776B2 (en) | 1998-12-02 |
Family
ID=16241137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2189431A Expired - Lifetime JP2829776B2 (en) | 1990-07-19 | 1990-07-19 | Manufacturing method of inorganic fiber soundproofing material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2829776B2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0648859A (en) * | 1992-07-29 | 1994-02-22 | Nippon Muki Co Ltd | Production of inorganic acoustic and heat insulating material surface-covered with aluminum |
| JPH07145545A (en) * | 1993-11-19 | 1995-06-06 | Nippon Muki Co Ltd | Production of soundproof material of inorganic fiber |
| JPH0911361A (en) * | 1995-07-03 | 1997-01-14 | Mitsubishi Heavy Ind Ltd | Curved surface ceramic sound-absorbing material and its manufacture |
| JP2002528278A (en) * | 1998-10-22 | 2002-09-03 | ビ−エイイ− システムズ パブリック リミテッド カンパニ− | Composite laminate cutting |
| JP2005036342A (en) * | 2003-07-18 | 2005-02-10 | Three M Innovative Properties Co | Apparatus and method for forming raw material and nonwoven fabric article thus formed |
| JP2019504778A (en) * | 2016-01-13 | 2019-02-21 | サン−ゴバン プラコ | Acoustic board based on plaster |
-
1990
- 1990-07-19 JP JP2189431A patent/JP2829776B2/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0648859A (en) * | 1992-07-29 | 1994-02-22 | Nippon Muki Co Ltd | Production of inorganic acoustic and heat insulating material surface-covered with aluminum |
| JPH07145545A (en) * | 1993-11-19 | 1995-06-06 | Nippon Muki Co Ltd | Production of soundproof material of inorganic fiber |
| JPH0911361A (en) * | 1995-07-03 | 1997-01-14 | Mitsubishi Heavy Ind Ltd | Curved surface ceramic sound-absorbing material and its manufacture |
| JP2002528278A (en) * | 1998-10-22 | 2002-09-03 | ビ−エイイ− システムズ パブリック リミテッド カンパニ− | Composite laminate cutting |
| JP2005036342A (en) * | 2003-07-18 | 2005-02-10 | Three M Innovative Properties Co | Apparatus and method for forming raw material and nonwoven fabric article thus formed |
| JP4522058B2 (en) * | 2003-07-18 | 2010-08-11 | スリーエム イノベイティブ プロパティズ カンパニー | Material molding apparatus and method, and molded nonwoven article |
| JP2019504778A (en) * | 2016-01-13 | 2019-02-21 | サン−ゴバン プラコ | Acoustic board based on plaster |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2829776B2 (en) | 1998-12-02 |
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