JP3780070B2 - Inorganic fiber molded plate and manufacturing method thereof - Google Patents

Inorganic fiber molded plate and manufacturing method thereof Download PDF

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Publication number
JP3780070B2
JP3780070B2 JP20217297A JP20217297A JP3780070B2 JP 3780070 B2 JP3780070 B2 JP 3780070B2 JP 20217297 A JP20217297 A JP 20217297A JP 20217297 A JP20217297 A JP 20217297A JP 3780070 B2 JP3780070 B2 JP 3780070B2
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Prior art keywords
inorganic fiber
forming
grooves
shape
molded plate
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JP20217297A
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Japanese (ja)
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JPH1134202A (en
Inventor
元 三関
尊美 樋田
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Nippon Muki Co Ltd
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Nippon Muki Co Ltd
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Description

【0001】
【発明の属する技術分野】
本発明は、建築物の内装材、音響等の試験を行う試験室の内装材、乗用車やトラック用等の産業用部品として使用される吸音体等の立体形部材を折り曲げ成形するための展開形状を有する無機質繊維成形板とその製造方法に係り、特に、高密度の芯材の折り曲げが容易にでき外観品質に優れる無機質繊維成形板とその製造方法に関する。
【0002】
【従来の技術】
従来、ガラス繊維ウエブシートのような無機質繊維材を用いて立体形の吸音体を成形する手段としては、熱板によるプレス成形や熱風貫通成形又はこれ等を併用する方法が一般に知られている。また、特開平6−314894号公報において金型の内面に不燃性シートの容器を装着し、誘電損失材料を配合したフェノール樹脂を注入して発泡硬化させる技術が開示されている。
【0003】
【発明が解決しようとする課題】
然し乍ら、従来方法の例えば、熱板によるプレス成形や熱風貫通成形の場合には、立体形が深絞り形状の場合にはガラス短繊維ウエブシートや表皮材が破れる場合があり、不良品ができ易い問題点があった。また、プレスの抜き角度を設定する必要があるため成形品の形状設計に制約が生じ、任意の立体形を形成することができなかった。また、特開平6−314894号公報に開示するものは主に深絞り状の金型を使用するもので立体形が限定される。
【0004】
一方、従来技術でも前記の問題点を解決する手段として実開平4−110811号公報や実公昭61−35603号公報に挙げられる技術が開示されている。実開平4−110811号公報に開示のチャンネル形繊維板は、無機質繊維芯材に不織布を貼着した展開形状の成形板の折り曲げ線の部分にVカット部をプレス形成したものからなる。また、特公昭61−35603号公報に開示の断面溝形状断熱吸音材は、折り曲げ部に折曲げ補助溝を押圧形成したものからなる。
【0005】
実開平4−110811号公報に開示のものは、Vカット部を基として展開形状の成形板を折り曲げることにより所望の立体形が形成され、折り曲げがやり易いため密度の高い成形板の折り曲げ加工ができる。また、Vカット部が互いに密接するため外観品質もよい。然し乍ら、Vカット部は別工程のプレス加工により成形する必要があり、工程数が増加し作業効率が低下する。また、プレス加工によってVカット部を押圧形成するためその部分の密度が高くなり硬化し曲げ難くなる問題点がある。
【0006】
一方、実公昭61−35603号公報に開示のものも補助溝を基として折り曲げ加工が容易にでき、密度の高い成形品の折り曲げが可能であるが、補助溝の箇所が外側に膨らみ、外観品質が低下する問題点がある。
【0007】
本発明は、以上の問題点を解決するもので、折り曲げ線の形成のための特別の別工程が不要のため作業性の向上が図れ、折り曲げ加工がやり易く、密度の高い成形品を所望の形状の立体形に容易に折り曲げでき、外観品質に優れる無機質繊維成形板とその製造方法を提供することを目的とする。
【0008】
【課題を解決するための手段】
本発明の無機質繊維成形板は、以上の課題を解決すべく、無機質繊維芯材の単体又は無機質繊維芯材の少なくとも片面側に不織布を設けた無機質繊維成形板であって、該成形板は、折り曲げ線に沿って立体形を折曲形成し得る展開形状のものからなり、前記折り曲げ線の両側の対称位置には該折り曲げ線に沿う成形溝が形成され該溝間を未成形状態とし、前記成形溝間とそれに対応する他面側の部分とを外方に凸状としたことを特徴とする。
【0009】
また、本発明の請求項2記載の無機質繊維成形板は、無機質繊維芯材の少なくとも片面側に熱融着シートを介して不織布を設けた無機質繊維成形板であって、該成形板は、折り曲げ線に沿って立体形を折曲形成し得る展開形状のものからなり、前記折り曲げ線の両側の対称位置には該折り曲げ線に沿う成形溝が形成され該溝間を未成形状態とし、前記成形溝間とそれに対応する他面側の部分とを外方に凸状としたことを特徴とする。
【0010】
また、本発明の請求項3記載の無機質繊維成形板は、前記立体形が角錐形、くさび形、或いは、箱形であることを特徴とする。
【0011】
また、本発明の請求項4記載の無機質繊維成形板は、前記無機質繊維芯材が、ガラス短繊維ウエブからなることを特徴とする。
【0012】
また、本発明の請求項5記載の無機質繊維成形板は、前記不織布が、ポリエステル繊維製、ポリアミド繊維製、炭素繊維製、ポリノジック繊維製、或いは、これ等の複合体からなることを特徴とする。
【0013】
また、本発明の請求項6の無機質繊維成形板は、前記不織布が着色されたものであることを特徴とする。
【0014】
また、本発明の請求項7の無機質繊維成形板の製造方法は、無機質繊維芯材の単体又は無機質繊維芯材の少なくとも片面側に不織布を設けた無機質繊維成形板を折り曲げ線に沿って所望の立体形を形成し得る展開形状に成形する第1の手順と、前記成形板の成形と同時に前記折り曲げ線の両側に該折り曲げ線に沿って適宜深さの成形溝を、該両溝間を未成形の状態に残し、加熱加圧成形する第2の手順とを行うことを特徴とする。
【0015】
本発明では、無機質繊維芯材の単体又はこれに不織布を貼着した無機質繊維成形板を所望の立体形を展開した展開形状の成形板として成形する。立体形は折り曲げ線を基として折り曲げ形成されるが、本発明では従来技術のようにVカット部等の別工程による折り曲げ線を形成せず、成形板の形成時に同時に両溝間を未成形状態にした成形溝を形成する。立体形は成形溝に沿って展開形状の成形板を折り曲げることにより形成される。このため折り曲げが容易にでき、密度の高い成形板の折り曲げが容易にできる。また、折り曲げによる膨らみが発生しないため外観品質の向上が図れる。また、無機質繊維芯材や不織布は使用目的に応じて各種のものが選定される。また、本発明による立体形の製品はその組成からみて吸音材として使用される。
【0016】
【発明の実施の形態】
以下、本発明の無機質繊維成形板及びその製造方法を図面を参照して詳述する。
図1は折り曲げ成形した場合に角錐体を形成する展開形状の無機質繊維成形板1を示す。このものは図示のように同一形成の截頭円錐状の板片2を互いに連結した形状のものからなり、隣接する板片2,2間には仮想折り曲げ線3(2点鎖線で示す)がある。また、最外端側の板片2,2には接着代4,4が設けられ、立体形を形成する場合の接合部として機能する。なお、接着代4における接着材としてはホットメルトや両面テープ等を使用することが作業性、品質面、環境面から好ましいが、これに限定するものではなく、一般の接着剤を接着代4の箇所に塗布して接合するものでもよい。
【0017】
仮想折り曲げ線3の両側にはこの仮想折り曲げ線3に沿って一対の成形溝5,5が凹設され、これら溝5,5間は未成形状態とされている。図2はその詳細構造を示すものである。この成形溝5,5は対称位置に形成され、無機質繊維成形板1が加熱加圧成形される成形時に、両成形溝5,5間のみを未成形状態にしたまま加熱加圧成形により成形されるものである。従って、成形溝5の部分は他のところに較べて密度が特に高くなることはない。図2に示すように、成形溝5,5を仮想折り曲げ線3の両サイドに形成することにより仮想折り曲げ線3の部分には若干の凹凸部が発生するが、成形溝5の形成される側が折り曲げ時の内部に相当するため前記の凹凸部は折り曲げ形成時には消滅し、外観品質上に何等影響を与えない。
【0018】
図2は図1のA−A線拡大断面図であり、本発明の無機質繊維成形板1の断面形成を拡大表示するものである。図示の無機質繊維成形板1は無機質繊維芯材6の両面に不織布7,7を設けたものからなる。勿論、本発明の無機質繊維成形板としては不織布7のない単体のものでもよく、片面に不織布7を有するものでもよい。また、強度向上のため、無機質繊維芯材6と不織布7との間にポリエチレン等の低融点の合成樹脂製のシートやホットメルトシート等の熱融着シートを介在させるものでもよい。なお、成形溝5,5は無機質繊維成形板1の内面側に形成される。
【0019】
無機質繊維芯材6としては、強度と吸音性を保持する必要性から、例えばガラス短繊維ウエブが一例として採用されるがこれに限定するものではない。
【0020】
また、表皮材としての不織布7としては、ポリエステル繊維製、ポリアミド繊維製、炭素繊維製、ポリノジック繊維製の単体、或いは、これ等の複合繊維が採用される。この場合、建築材料などに要求される難燃レベルや自動車部品に要求される難燃レベルにあわせた仕様のものを選定する。また、ポリエステル繊維、ポリアミド繊維、ポリノジック繊維の単体、或いは、これ等の複合繊維に着色を施すことにより一般建築物や試験室、乗用車やトラック等の内装材としても利用可能である。なお、ユーザの要求に合わせてグリーン、ベージュ、ブルー等任意の着色選択が可能である。
【0021】
所望の角錐体を製造するには、まず、図1に示した展開形状の無機質繊維成形板1を一般的な熱板プレス成形や熱風貫通成形によって形成し、前記したように仮想折り曲げ線3の両側に成形溝5,5を同時に形成する。尚、両成形溝5,5間のみは、無機質繊維芯材6のバインダ分を除いておくか、加熱硬化させないという手段等により未成形状態としておく。次に、成形溝5,5を内側にして成形溝5,5を基として各板片を折り曲げると図3に示す一方側に開口部8を有する立体形の角錐体9が形成される。開口部8側に形成される接着代4,4の部分を結合することにより図4に示すように角錐体9が形成される。
【0022】
【実施例】
次に、本発明の具体的実施例につき説明する。
ガラス短繊維ウエブシートとしては、繊維径4乃至20ミクロンのガラス短繊維に熱硬化性のフェノール樹脂を含浸させた目付400乃至1500g/m2 のシートを作る。次に、このシートの単体、或いは、このシートにポリエチレンシートやホットメルトシートを介して両面に合成繊維製の不織布や紙を重ね合わせた複合体を3〜100mmの厚みの平板状もしくは浅絞状に成形する。この時、成形は150〜250℃の熱板によってプレスするか、150〜200℃の熱風によるか又はこれ等を両用して行う。尚、この成形時には成形溝間は加熱せずに未成形状態としておく。温度の設定については表皮材として使用される不織布などの融点を考慮する必要がある。なお、繊維径が細い程、又成形厚さが厚い程高い吸音機能を期待することができる。
【0023】
前記した立体形は角錐体9であったが、立体形はこれに限定するものではなく、図5に示すくさび体9aや、図6に示す箱体9bにも適用される。勿論、その他の形状の立体形にも適用される。これ等の無機質繊維成形板の場合には同様のように成形溝5を設けることにより折り曲げが容易に行われる。
【0024】
前記したように無機質繊維芯材6や不織布7の材質としては各種のものが採用されるが要求される難燃性、風合い、着色性、コスト等を勘案し適宜設定される。また、成形溝5の形状、形成位置も図示のものに限定するものではなく、成形板の厚み、密度、表皮材の種類等により適宜の形状のものが採用され、形成位置も仮想折り曲げ線3の近傍の適宜な位置に対称に形成される。
【0025】
【発明の効果】
1)本発明の請求項1および2に記載の無機質繊維成形板によれば、該成形板には折り曲げ線の両側の対称位置に、折り曲げ線に沿って成形溝が形成され、この成形溝間は未成形状態とされるため、該成形溝を基として折り曲げが円滑に、且つ容易に行われ、密度の高い成形板も外観品質を保持した状態で折り曲げ形成することができる。
2)本発明の請求項3に記載の無機質繊維成形板によれば、角錐体、くさび体、箱体等の折り曲げ形成が可能な任意の形状の立体形を形成することができる。
3)本発明の請求項4、5に記載の無機質繊維成形板によれば、立体形の形状、厚み、使用目的等に対応して、無機質繊維芯材や不織布を適宜選定することができ所望の立体形を得ることができる。
4)本発明の請求項6に記載の無機質繊維成形板によれば、不織布を所望の色に着色することができ、使用目的に合致した外観品質を保持することができる。
5)本発明の請求項7に記載の無機質繊維成形板の製造方法によれば、成形溝は無機質繊維成形板の成形時に同時に形成され、従来技術のように別工程を必要としないため作業性の向上が図られる。また、同時成形のため成形溝のまわりの密度が高くならず円滑な折り曲げができる。
【図面の簡単な説明】
【図1】本発明の無機質繊維成形板の展開形状を示す平面図。
【図2】図2のA−A線拡大断面図。
【図3】図1に示した無機質繊維成形板を立体形に折り曲げた形状を示す斜視図。
【図4】図3のB矢視における立体形の完成時の状態を示す上面図。
【図5】くさび体を形成する本発明の無機質繊維成形板の展開形状を示す平面図。
【図6】箱体を形成する本発明の無機質繊維成形板の展開形状を示す平面図。
【符号の説明】
1 無機質繊維成形板
2 板片
3 仮想折り曲げ線
4 接着代
5 成形溝
6 無機質繊維芯材
7 不織布
8 開口部
9 角錐体
9a くさび体
9b 箱体
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an interior shape of a building, an interior material of a test room for performing a test such as sound, and a developed shape for bending a three-dimensional member such as a sound absorbing body used as an industrial part for a passenger car or a truck. In particular, the present invention relates to an inorganic fiber molded plate that can easily bend a high-density core material and has excellent appearance quality, and a method for manufacturing the same.
[0002]
[Prior art]
Conventionally, as a means for forming a three-dimensional sound absorber using an inorganic fiber material such as a glass fiber web sheet, a press molding using a hot plate, a hot air penetration molding, or a method using these in combination is generally known. Japanese Patent Laid-Open No. 6-314894 discloses a technique in which a non-combustible sheet container is mounted on the inner surface of a mold, and a phenol resin containing a dielectric loss material is injected and foamed and cured.
[0003]
[Problems to be solved by the invention]
However, in the case of the conventional method, for example, press molding by hot plate or hot air penetration molding, if the three-dimensional shape is a deep-drawn shape, the short glass fiber web sheet or the skin material may be broken, and a defective product is likely to be produced. There was a problem. In addition, since it is necessary to set the punching angle of the press, the shape design of the molded product is restricted, and an arbitrary three-dimensional shape cannot be formed. In addition, what is disclosed in Japanese Patent Laid-Open No. 6-314894 mainly uses a deep-drawing mold, and the three-dimensional shape is limited.
[0004]
On the other hand, in the prior art, techniques listed in Japanese Utility Model Laid-Open No. 4-110811 and Japanese Utility Model Publication No. 61-35603 are disclosed as means for solving the above-described problems. The channel-shaped fiber board disclosed in Japanese Utility Model Laid-Open No. 4-11081 is formed by pressing a V-cut portion at a fold line portion of a developed shaped molded plate in which a nonwoven fabric is bonded to an inorganic fiber core material. Moreover, the cross-sectional groove-shaped heat insulating sound-absorbing material disclosed in Japanese Examined Patent Publication No. 61-35603 is formed by pressing a folding auxiliary groove in a bent portion.
[0005]
The one disclosed in Japanese Utility Model Publication No. 4-11081 discloses that a desired three-dimensional shape is formed by bending a developed shaped molded plate based on the V-cut portion, and bending is easy because folding is easy. it can. Moreover, since the V-cut portions are in close contact with each other, the appearance quality is good. However, the V-cut portion needs to be formed by pressing in a separate process, which increases the number of processes and lowers the work efficiency. Further, since the V-cut portion is formed by pressing, the density of the portion becomes high, and there is a problem that it is hardened and difficult to bend.
[0006]
On the other hand, the one disclosed in Japanese Utility Model Publication No. 61-35603 can also be easily bent based on the auxiliary groove, and can be bent to a molded product having a high density. There is a problem that decreases.
[0007]
The present invention solves the above-mentioned problems, and since a special separate process for forming a fold line is not required, the workability can be improved, the bending process is easy, and a molded product having a high density is desired. An object of the present invention is to provide an inorganic fiber molded plate that can be easily folded into a three-dimensional shape and has excellent appearance quality, and a method for producing the same.
[0008]
[Means for Solving the Problems]
In order to solve the above problems, the inorganic fiber molded plate of the present invention is an inorganic fiber molded plate provided with a non-woven fabric on a single inorganic fiber core material or at least one side of the inorganic fiber core material. It consists of a developed shape that can bend a three-dimensional shape along a fold line, and a forming groove is formed along the fold line at symmetrical positions on both sides of the fold line, and the gap between the grooves is in an unformed state , It is characterized in that the space between the forming grooves and the corresponding portion on the other surface side are convex outward .
[0009]
The inorganic fiber molded plate according to claim 2 of the present invention is an inorganic fiber molded plate in which a nonwoven fabric is provided on at least one side of an inorganic fiber core material via a heat-sealing sheet, and the molded plate is bent. made from those developed shape capable of forming bending the three dimensional along the line, at symmetrical positions on both sides of the fold line is the unformed state between the groove is formed forming groove along the folding line, the forming It is characterized in that the space between the grooves and the corresponding portion on the other surface side are convex outward .
[0010]
In the inorganic fiber molded plate according to claim 3 of the present invention, the three-dimensional shape is a pyramid shape, a wedge shape, or a box shape.
[0011]
Moreover, the inorganic fiber molded board of Claim 4 of this invention is characterized by the said inorganic fiber core material consisting of a glass short fiber web.
[0012]
The inorganic fiber molded plate according to claim 5 of the present invention is characterized in that the nonwoven fabric is made of polyester fiber, polyamide fiber, carbon fiber, polynosic fiber, or a composite of these. .
[0013]
Moreover, the inorganic fiber molded board of Claim 6 of this invention is characterized by the said nonwoven fabric being colored.
[0014]
According to a seventh aspect of the present invention, there is provided a method for producing an inorganic fiber molded plate, wherein the inorganic fiber molded plate is a single inorganic fiber core material or an inorganic fiber molded plate provided with a nonwoven fabric on at least one side of the inorganic fiber core material. A first procedure for forming a developed shape capable of forming a three-dimensional shape, and forming grooves of an appropriate depth along the fold line on both sides of the fold line at the same time as forming the molding plate, and a gap between the grooves is not formed. It is characterized by performing the second procedure of heating and pressing while leaving the state of molding.
[0015]
In the present invention, a single inorganic fiber core material or an inorganic fiber molded plate in which a nonwoven fabric is bonded thereto is molded as a developed plate having a desired three-dimensional shape. The three-dimensional shape is bent based on the fold line, but in the present invention, a fold line by a separate process such as a V-cut portion is not formed as in the prior art, and the gap between both grooves is not formed at the same time as the forming plate is formed. The formed forming groove is formed. The three-dimensional shape is formed by bending a developed shaped plate along the forming groove. For this reason, it can be bent easily and a molded plate having a high density can be easily bent. Further, since the bulge due to the bending does not occur, the appearance quality can be improved. Various inorganic fiber core materials and non-woven fabrics are selected according to the purpose of use. The three-dimensional product according to the present invention is used as a sound absorbing material in view of its composition.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the inorganic fiber molded plate of the present invention and the manufacturing method thereof will be described in detail with reference to the drawings.
FIG. 1 shows a developed inorganic fiber molded plate 1 that forms a pyramid when bent. As shown in the figure, this has a shape in which the same shaped frustoconical plate pieces 2 are connected to each other, and a virtual folding line 3 (indicated by a two-dot chain line) is provided between adjacent plate pieces 2 and 2. is there. Also, the outermost plate pieces 2 and 2 are provided with bonding margins 4 and 4 so as to function as joint portions when a three-dimensional shape is formed. In addition, it is preferable from the viewpoint of workability, quality, and environment that hot melt, double-sided tape, or the like is used as an adhesive in the adhesive allowance 4, but the present invention is not limited to this. It may be applied and bonded to a location.
[0017]
A pair of molding grooves 5 and 5 are formed along the virtual folding line 3 on both sides of the virtual folding line 3, and the gap between the grooves 5 and 5 is not molded. FIG. 2 shows the detailed structure. The molding grooves 5 and 5 are formed at symmetrical positions, and are molded by heat and pressure molding while the inorganic fiber molding plate 1 is molded by heat and pressure while leaving only the molding grooves 5 and 5 unformed. Is. Therefore, the density of the portion of the molding groove 5 does not become particularly high compared to other portions. As shown in FIG. 2, by forming the forming grooves 5 and 5 on both sides of the virtual fold line 3, some uneven portions are generated in the virtual fold line 3, but the side on which the forming groove 5 is formed is Since it corresponds to the inside at the time of bending, the above-mentioned concavo-convex part disappears at the time of forming the bending, and has no influence on the appearance quality.
[0018]
FIG. 2 is an enlarged cross-sectional view taken along line AA of FIG. 1, and shows an enlarged view of the cross-section of the inorganic fiber molded plate 1 of the present invention. The illustrated inorganic fiber molded plate 1 is formed by providing nonwoven fabrics 7 and 7 on both surfaces of an inorganic fiber core material 6. Of course, the inorganic fiber molded plate of the present invention may be a single body without the nonwoven fabric 7 or may have the nonwoven fabric 7 on one side. Further, in order to improve the strength, a thermal fusion sheet such as a sheet made of synthetic resin having a low melting point such as polyethylene or a hot melt sheet may be interposed between the inorganic fiber core material 6 and the nonwoven fabric 7. The molding grooves 5 and 5 are formed on the inner surface side of the inorganic fiber molded plate 1.
[0019]
As the inorganic fiber core material 6, for example, a short glass fiber web is adopted as an example from the necessity of maintaining strength and sound absorption, but the present invention is not limited to this.
[0020]
Moreover, as the nonwoven fabric 7 as a skin material, the single-piece | unit made from a polyester fiber, the product made from a polyamide fiber, the product made from carbon fiber, a polynosic fiber, or these composite fibers are employ | adopted. In this case, the specification is selected according to the flame retardant level required for building materials and the like and the flame retardant level required for automobile parts. Moreover, it can use also as interior materials, such as a general building, a test room, a passenger car, a truck, by coloring the polyester fiber, the polyamide fiber, the polynosic fiber, or these composite fibers. It is possible to select any color such as green, beige and blue according to the user's request.
[0021]
In order to produce a desired pyramid, first, the developed inorganic fiber molding plate 1 shown in FIG. 1 is formed by general hot plate press molding or hot air penetration molding, and the virtual folding line 3 is formed as described above. Forming grooves 5 and 5 are simultaneously formed on both sides. In addition, only the space between both the molding grooves 5 and 5 is left in an unmolded state by removing the binder portion of the inorganic fiber core material 6 or by means such as not heating and curing. Next, when each plate piece is bent based on the forming grooves 5 and 5 with the forming grooves 5 and 5 inside, a three-dimensional pyramid 9 having an opening 8 on one side shown in FIG. 3 is formed. A pyramid 9 is formed as shown in FIG. 4 by joining the portions of the bonding margins 4 and 4 formed on the opening 8 side.
[0022]
【Example】
Next, specific examples of the present invention will be described.
As the short glass fiber web sheet, a sheet having a basis weight of 400 to 1500 g / m 2 is prepared by impregnating a short glass fiber having a fiber diameter of 4 to 20 microns with a thermosetting phenol resin. Next, a single sheet of this sheet or a composite in which a nonwoven fabric or paper made of synthetic fiber is superimposed on both sides of this sheet via a polyethylene sheet or hot melt sheet is formed into a flat plate shape or a shallow drawn shape having a thickness of 3 to 100 mm. To form. At this time, the molding is performed by pressing with a hot plate of 150 to 250 ° C., hot air of 150 to 200 ° C., or both of them. In this molding, the space between the molding grooves is not heated and is left in an unmolded state. Regarding the temperature setting, it is necessary to consider the melting point of the nonwoven fabric used as the skin material. In addition, the higher the fiber diameter, the higher the sound absorbing function can be expected as the molding thickness increases.
[0023]
Although the above-described three-dimensional shape is a pyramid 9, the three-dimensional shape is not limited to this, and is also applicable to the wedge body 9 a shown in FIG. 5 and the box body 9 b shown in FIG. 6. Of course, the present invention can also be applied to solid shapes having other shapes. In the case of these inorganic fiber molded plates, bending is easily performed by providing the molding grooves 5 in the same manner.
[0024]
As described above, various materials are used as the material for the inorganic fiber core material 6 and the nonwoven fabric 7, but they are appropriately set in consideration of required flame retardancy, texture, colorability, cost, and the like. Further, the shape and the formation position of the forming groove 5 are not limited to those shown in the drawing, and those having an appropriate shape are adopted depending on the thickness, density, type of skin material, etc. of the forming plate, and the formation position is also the virtual folding line 3. Is formed symmetrically at an appropriate position in the vicinity of.
[0025]
【The invention's effect】
1) According to the inorganic fiber molded plate of the first and second aspects of the present invention, the molded plate is formed with a molded groove along the fold line at symmetrical positions on both sides of the fold line. Since it is in an unmolded state, it can be bent smoothly and easily based on the molding groove, and a molded plate having a high density can be folded while maintaining the appearance quality.
2) According to the inorganic fiber molded plate according to claim 3 of the present invention, it is possible to form a three-dimensional shape having an arbitrary shape that can be bent such as a pyramid, a wedge, or a box.
3) According to the inorganic fiber molded plate according to claims 4 and 5 of the present invention, the inorganic fiber core material and the nonwoven fabric can be appropriately selected according to the three-dimensional shape, thickness, purpose of use and the like. Can be obtained.
4) According to the inorganic fiber molded plate of claim 6 of the present invention, the nonwoven fabric can be colored in a desired color, and the appearance quality matching the purpose of use can be maintained.
5) According to the method for manufacturing an inorganic fiber molded plate according to claim 7 of the present invention, the molding groove is formed at the same time as the molding of the inorganic fiber molded plate and does not require a separate process as in the prior art, so that workability is improved. Is improved. In addition, since the molding is performed simultaneously, the density around the molding groove is not increased and smooth bending can be performed.
[Brief description of the drawings]
FIG. 1 is a plan view showing a developed shape of an inorganic fiber molded plate of the present invention.
FIG. 2 is an enlarged sectional view taken along line AA in FIG.
3 is a perspective view showing a shape obtained by bending the inorganic fiber molded plate shown in FIG. 1 into a three-dimensional shape. FIG.
4 is a top view showing a state when a solid shape is completed as viewed in the direction of arrow B in FIG. 3; FIG.
FIG. 5 is a plan view showing a developed shape of an inorganic fiber molded plate of the present invention forming a wedge body.
FIG. 6 is a plan view showing a developed shape of an inorganic fiber molded plate of the present invention that forms a box.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Inorganic fiber shaping | molding board 2 Board piece 3 Virtual bending line 4 Adhesive allowance 5 Molding groove 6 Inorganic fiber core material 7 Nonwoven fabric 8 Opening part 9 Pyramid 9a Wedge 9b Box

Claims (7)

無機質繊維芯材の単体又は無機質繊維芯材の少なくとも片面側に不織布を設けた無機質繊維成形板であって、該成形板は、折り曲げ線に沿って立体形を折曲形成し得る展開形状のものからなり、前記折り曲げ線の両側の対称位置には該折り曲げ線に沿う成形溝が形成され該溝間を未成形状態とし、前記成形溝間とそれに対応する他面側の部分とを外方に凸状としたことを特徴とする無機質繊維成形板。A mineral fiber core plate or an inorganic fiber mold plate provided with a non-woven fabric on at least one side of the inorganic fiber core material, the molded plate having a developed shape capable of bending a three-dimensional shape along a fold line Forming grooves along the fold line are formed at symmetrical positions on both sides of the fold line, the gap between the grooves is in an unmolded state, and the gap between the mold grooves and the corresponding portion on the other side are outward. An inorganic fiber molded board characterized by having a convex shape . 無機質繊維芯材の少なくとも片面側に熱融着シートを介して不織布を設けた無機質繊維成形板であって、該成形板は、折り曲げ線に沿って立体形を折曲形成し得る展開形状のものからなり、前記折り曲げ線の両側の対称位置には該折り曲げ線に沿う成形溝が形成され該溝間を未成形状態とし、前記成形溝間とそれに対応する他面側の部分とを外方に凸状としたことを特徴とする無機質繊維成形板。An inorganic fiber molded plate in which a nonwoven fabric is provided on at least one side of an inorganic fiber core material via a heat-sealing sheet, and the molded plate has a developed shape capable of bending a three-dimensional shape along a folding line. Forming grooves along the fold line are formed at symmetrical positions on both sides of the fold line, the gap between the grooves is in an unmolded state, and the gap between the mold grooves and the corresponding portion on the other side are outward. An inorganic fiber molded board characterized by having a convex shape . 前記立体形が角錐形、くさび形、或いは、箱形である請求項1又は2に記載の無機質繊維成形板。  The inorganic fiber molded board according to claim 1 or 2, wherein the three-dimensional shape is a pyramid shape, a wedge shape, or a box shape. 前記無機質繊維芯材が、ガラス短繊維ウエブからなる請求項1又は2に記載の無機質繊維成形板。  The inorganic fiber molded plate according to claim 1 or 2, wherein the inorganic fiber core material is a short glass fiber web. 前記不織布が、ポリエステル繊維製、ポリアミド繊維製、炭素繊維製、ポリノジック繊維製、或いは、これ等の複合体からなる請求項1又は2に記載の無機質繊維成形板。  The inorganic fiber molded plate according to claim 1 or 2, wherein the nonwoven fabric is made of polyester fiber, polyamide fiber, carbon fiber, polynosic fiber, or a composite thereof. 前記不織布が着色されたものである請求項5に記載の無機質繊維成形板。  The inorganic fiber molded board according to claim 5, wherein the nonwoven fabric is colored. 無機質繊維芯材の単体又は無機質繊維芯材の少なくとも片面側に不織布を設けた無機質繊維成形板を折り曲げ線に沿って所望の立体形を形成し得る展開形状に成形する第1の手順と、前記成形板の成形と同時に前記折り曲げ線の両側に該折り曲げ線に沿って適宜深さの成形溝を、該両溝間を未成形の状態に残し、加熱加圧成形する第2の手順とを行うことを特徴とする無機質繊維成形板の製造方法。  A first procedure for forming a single inorganic fiber core material or an inorganic fiber molded plate provided with a nonwoven fabric on at least one side of the inorganic fiber core material into a developed shape capable of forming a desired three-dimensional shape along a folding line; Simultaneously with the forming of the forming plate, a second step is performed in which a forming groove having an appropriate depth is formed on both sides of the bending line along the bending line, and the two grooves are left in an unformed state, and heat and pressure forming is performed. The manufacturing method of the inorganic fiber shaping | molding board characterized by the above-mentioned.
JP20217297A 1997-07-11 1997-07-11 Inorganic fiber molded plate and manufacturing method thereof Expired - Fee Related JP3780070B2 (en)

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US6455146B1 (en) * 2000-10-31 2002-09-24 Sika Corporation Expansible synthetic resin baffle with magnetic attachment
WO2004016844A1 (en) * 2002-08-12 2004-02-26 Shikibo Ltd. Preform precursor for fiber-reinforced composite material, preform for fiber-reinforced composite material, and method of manufacturing the precursor and the preform
JP2005345847A (en) * 2004-06-04 2005-12-15 Japan Highway Public Corp Laminated sound absorbing material and manufacturing method thereof
JP5075348B2 (en) * 2006-04-21 2012-11-21 株式会社アイテック Insulator heat compression molding method

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015146696A1 (en) * 2014-03-27 2015-10-01 旭ファイバーグラス株式会社 Insulating panel and method for attaching insulating panel
JP2015190128A (en) * 2014-03-27 2015-11-02 旭ファイバーグラス株式会社 Heat insulation panel and heat insulation panel attaching method

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