JPH0375141A - Method for molding composite material - Google Patents
Method for molding composite materialInfo
- Publication number
- JPH0375141A JPH0375141A JP21027689A JP21027689A JPH0375141A JP H0375141 A JPH0375141 A JP H0375141A JP 21027689 A JP21027689 A JP 21027689A JP 21027689 A JP21027689 A JP 21027689A JP H0375141 A JPH0375141 A JP H0375141A
- Authority
- JP
- Japan
- Prior art keywords
- thermoplastic reinforced
- molding
- reinforced plastic
- thermoplastic
- glass wool
- 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
- 238000000465 moulding Methods 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims abstract description 20
- 239000002131 composite material Substances 0.000 title claims description 22
- 229920001169 thermoplastic Polymers 0.000 claims abstract description 46
- 239000004416 thermosoftening plastic Substances 0.000 claims abstract description 45
- 239000000463 material Substances 0.000 claims abstract description 31
- 239000011491 glass wool Substances 0.000 claims abstract description 23
- 239000002990 reinforced plastic Substances 0.000 claims description 30
- 239000003365 glass fiber Substances 0.000 claims description 4
- 239000011521 glass Substances 0.000 abstract description 2
- 239000011347 resin Substances 0.000 abstract 6
- 229920005989 resin Polymers 0.000 abstract 6
- -1 polypropylene Polymers 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 229920001707 polybutylene terephthalate Polymers 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
Landscapes
- Body Structure For Vehicles (AREA)
- Laminated Bodies (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、例えば自動車のエンジンアンダーカバーなど
に使用される複合材の成形方法に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method for molding a composite material used, for example, in an engine undercover of an automobile.
（従来の技術）
自動車のエンジンルームの下側には、泥はね防止や遮音
、吸音などを兼ねてアンダーカバーが配設されている。(Prior Art) An undercover is provided below the engine compartment of an automobile to prevent mud from splashing, to insulate sound, and to absorb sound.
これらアンダーカバーは、熱可塑性プラスチック内にガ
ラス繊維材を混入させてなる熱可塑性強化プラスチック
などの複合材が使用され、さらにより良い遮音性や断熱
性などを得るためこの上にガラスウール材を取り付けて
なる複合材などを使用したものもある。These undercovers are made of a composite material such as thermoplastic reinforced plastic, which is made by mixing glass fiber material into thermoplastic plastic, and glass wool material is attached on top of this to obtain better sound insulation and heat insulation properties. Some use materials such as composite materials.
第３図は、その従来における複合材の一例を示したもの
である。FIG. 3 shows an example of the conventional composite material.
この複合材３０は、ガラス繊維材を混入させた熱可塑性
強化プラスチック３１の上面に接着剤３２などを介して
ガラスウール材３３を取り付けている。In this composite material 30, a glass wool material 33 is attached to the upper surface of a thermoplastic reinforced plastic 31 mixed with a glass fiber material via an adhesive 32 or the like.
また、この複合材３０を成形する場合は、まず最初に熱
可塑性強化プラスチック３１を加圧して所定の形状に成
形する。この場合の成形圧力は１５０〜２５０ｋｇ／ａ
Ｉｉで、チャージ面積は約５０〜７０％で行われる０次
いで、熱可塑性強化プラスチック３１上に接着剤３２を
塗布してガラスウール材３３が載せられ、さらに加圧接
合が施されて完成する６
（発明が解決しようとする課題）
しかしながら、従来の成形方法では、熱可塑性強化プラ
スチック３１を加圧成形する工程と、熱可塑性強化プラ
スチック３１とガラスウール材３３とを接合する工程の
２工程を必要とする。このためコスト高になっていると
ともに品質にもバラツキが生じ易いと言う問題点があっ
た。Further, when molding this composite material 30, the thermoplastic reinforced plastic 31 is first pressurized and molded into a predetermined shape. The molding pressure in this case is 150 to 250 kg/a
In step Ii, the charging area is approximately 50 to 70%.Next, an adhesive 32 is applied on the thermoplastic reinforced plastic 31, a glass wool material 33 is placed on it, and further pressure bonding is performed to complete the process6. (Problems to be Solved by the Invention) However, the conventional molding method requires two steps: pressure molding the thermoplastic reinforced plastic 31 and bonding the thermoplastic reinforced plastic 31 and the glass wool material 33. shall be. For this reason, there are problems in that the cost is high and the quality tends to vary.
本発明は、上記問題点に鑑みてなされたものであり、そ
の目的は工程数を減らして品質の安定化を図ることがで
きるようにした複合材の成形方法を提供することにある
。The present invention has been made in view of the above problems, and its purpose is to provide a method for molding a composite material that can reduce the number of steps and stabilize quality.
（課題を解決するための手段〉
上記目的を達成するため、本発明に係る複合材の成形方
法は、加熱し軟化させた熱可塑性強化プラスチック上に
ガラスウール材を積層した後、上下から成形型で加圧し
、前記熱可塑性強化プラスチックの成形と同時に前記熱
可塑性強化プラスチックと前記ガラスウール材との接合
を行うようにしたものである。(Means for Solving the Problems) In order to achieve the above object, the method for molding a composite material according to the present invention includes laminating a glass wool material on a thermoplastic reinforced plastic that has been heated and softened, and then molding it from above and below. The thermoplastic reinforced plastic and the glass wool material are joined together at the same time as the thermoplastic reinforced plastic is molded.
（作用）
これによれば、熱可塑性強化プラスチックを成形型で所
定の形状に加圧成形するとき、この成形と同時にガラス
ウール材と熱可塑性強化プラスチックとの間が加圧接合
される。したがって、成形と接合とが一工程で済む。(Function) According to this, when the thermoplastic reinforced plastic is pressure molded into a predetermined shape using a mold, the glass wool material and the thermoplastic reinforced plastic are pressure bonded simultaneously with this molding. Therefore, molding and joining can be done in one step.
（実施例）
以下、本発明の実施例について図面を用いて詳細に説明
する。(Example) Hereinafter, an example of the present invention will be described in detail using the drawings.
第１図は本発明の成形方法を説明するための工程図で、
第２図はこの成形方法で成形された複合材を示したもの
である。FIG. 1 is a process diagram for explaining the molding method of the present invention.
FIG. 2 shows a composite material molded by this molding method.
図において、複合材１は、熱可塑性強化プラスチック２
と、熱可塑性シート３、ガラスウール材４とを積層して
一体化された構造になっている。In the figure, composite material 1 is composed of thermoplastic reinforced plastic 2
, a thermoplastic sheet 3, and a glass wool material 4 are laminated to form an integrated structure.
なお、熱可塑性強化プラスチック２としては、例えばポ
リプロピレン（ＰＰ）、ポリブチレンチレフタレ−）
（ＰＢＴ）、ポリエチレンテレフタレート（ＰＥＴ）、
ナイロン、ポリカーボネート（ＰＣ）などの熱可塑性プ
ラスチック内にガラス繊維材を混入させたものが使用さ
れる。一方、熱可塑性シート３としては、厚みが約０．
１〜０．２ｍｍ程度で形成されたオレフィン系のホット
メルトタイプフィルムが使用される。In addition, as the thermoplastic reinforced plastic 2, for example, polypropylene (PP), polybutylene terephthalate)
(PBT), polyethylene terephthalate (PET),
A thermoplastic such as nylon or polycarbonate (PC) mixed with glass fiber material is used. On the other hand, the thermoplastic sheet 3 has a thickness of about 0.
An olefin hot melt type film having a thickness of about 1 to 0.2 mm is used.
次に、複合材１を成形するための成形型は、第１図に示
すように、上型５と下型６とで構成されている。この各
型５，６は成形時に互いに突き合わされるもので、突き
合わせ面５ａ、６ａには複合材１に対応した凹部および
凸部が形成されている。Next, a mold for molding the composite material 1 is composed of an upper mold 5 and a lower mold 6, as shown in FIG. The molds 5 and 6 are butted against each other during molding, and concave portions and convex portions corresponding to the composite material 1 are formed on the abutting surfaces 5a and 6a.
この成形型５．６を使用して複合材１を成形する場合は
、まず最初に成形前のブロック状をした熱可塑性強化プ
ラスチック２を、第１図（ａ）に示すように赤外線ラン
プ７などで約２４０℃程度に加熱して軟化させる０次に
、同図（ｂ）に示すように、この熱可塑性強化プラスチ
ック２上に熱可塑性シート３、シート状のガラスウール
材４を順次積層させ、この状態で下型６上に配置する。When molding the composite material 1 using this mold 5.6, first, the block-shaped thermoplastic reinforced plastic 2 is heated using an infrared lamp 7 as shown in FIG. 1(a). Next, as shown in the same figure (b), a thermoplastic sheet 3 and a sheet-shaped glass wool material 4 are sequentially laminated on this thermoplastic reinforced plastic 2, In this state, it is placed on the lower mold 6.
この場合、上型５および下型６の内部温度は約６０℃に
保持されている０次いで、この状態のまま上型５と下型
６とを突き合わせて行くと、熱可塑性強化プラスチック
２とガラスウール材４との間が加圧され、熱可塑性強化
プラスチック２が突き合わせ面５ａ、６ａに案内されて
拡散する。そして、最終的には同図（ｃ）で示すように
、熱可塑性強化プラスチック２、熱可塑性シート３、ガ
ラスウール材４が上型５と下型６との間に密着して挟ま
れた状態になって成形される。また、この加圧時には熱
可塑性シート３が熱可塑性強化プラスチック２の熱で溶
かされ、熱可塑性シート３とガラスウール材４との間が
接合される。なお、このときの成形圧力は５０〜１５０
ｋｇ／ｃＴＡ、チャージ面積は７０％以上に設定してい
る。一方、加圧成形された熱可塑性強化プラスチック２
は上型５および下型６の内部温度が約６０℃と低いので
、これら型５，６によって冷やされ硬化し保形される。In this case, the internal temperature of the upper mold 5 and the lower mold 6 is maintained at approximately 60°C.Next, when the upper mold 5 and the lower mold 6 are brought together in this state, the thermoplastic reinforced plastic 2 and the glass Pressure is applied between the material and the wool material 4, and the thermoplastic reinforced plastic 2 is guided by the abutting surfaces 5a, 6a and spread. Finally, as shown in the same figure (c), the thermoplastic reinforced plastic 2, the thermoplastic sheet 3, and the glass wool material 4 are tightly sandwiched between the upper mold 5 and the lower mold 6. It becomes and is formed. Further, during this pressurization, the thermoplastic sheet 3 is melted by the heat of the thermoplastic reinforced plastic 2, and the thermoplastic sheet 3 and the glass wool material 4 are joined together. In addition, the molding pressure at this time is 50 to 150
kg/cTA and charge area are set at 70% or more. On the other hand, pressure-molded thermoplastic reinforced plastic 2
Since the internal temperature of the upper mold 5 and the lower mold 6 is as low as about 60° C., the molds 5 and 6 cool, harden, and retain their shape.
その後、この硬化された複合材１を成形型５．６内から
取り出すと、第２図に示した複合材１が得られる。Thereafter, when this cured composite material 1 is taken out of the mold 5.6, the composite material 1 shown in FIG. 2 is obtained.
したがって、この成形方法では熱可塑性強化プラスチッ
ク２の成形と同時にガラスウール材４との接合も行うの
で一工程でこれらの作業が済む。Therefore, in this molding method, the thermoplastic reinforced plastic 2 is molded and joined to the glass wool material 4 at the same time, so these operations can be completed in one step.
これにより、コストの低減と品質の安定化が図れる。This makes it possible to reduce costs and stabilize quality.
また、この実施例による複合材１では、熱可塑性強化プ
ラスチック２とガラスウール材４との間に熱可塑性シー
ト３を介装して接合を行っているので、熱可塑性強化プ
ラスチック２がガラスウール材４内に侵入してガラスウ
ール材４の特性が低下するのをこの熱可塑性シート３で
防ぐことができる。しかし、この熱可塑性シート３は、
別の接合手段を使用すれば、必ずしも設けなくても良い
ものである。In addition, in the composite material 1 according to this embodiment, the thermoplastic sheet 3 is interposed between the thermoplastic reinforced plastic 2 and the glass wool material 4 for bonding, so that the thermoplastic reinforced plastic 2 is bonded to the glass wool material. This thermoplastic sheet 3 can prevent the glass wool material 4 from entering the interior of the glass wool material 4 and deteriorating its properties. However, this thermoplastic sheet 3
It does not necessarily need to be provided if another joining means is used.
（発明の効果〉
以上説明したとおり、本発明に係る複合材の成形方法に
よれば、熱可塑性強化プラスチックを成形型で所定の形
状に加圧成形するとき、この成形と同時にガラスウール
材と熱可塑性強化プラスチックとの間が加圧接合される
。したがって、成形と接合とが一工程で済む。これによ
り、従来の成形方法が二工程で行っていたのに比べてコ
ストを下げることができるとともに、品質が安定し向上
する。(Effects of the Invention) As explained above, according to the method for molding a composite material according to the present invention, when thermoplastic reinforced plastic is pressure molded into a predetermined shape with a mold, at the same time as this molding, glass wool material and heat Pressure bonding is performed between the plastic reinforced plastic. Therefore, molding and bonding can be done in one step. This reduces costs compared to the two-step process of conventional molding methods. , quality is stabilized and improved.
第１図（ａ）、（ｂ）、（ｃ）は本発明に係る成形方法
を説明するための工程図、第２図は本発明の成形方法を
用いて成形された複合材の断面図、第３図は従来の成形
方法を用いて成形された複合材の断面図である。
１．３０・・・複合材、２．３１・・・熱可塑性強化プ
ラスチック、４，３３・・・ガラスウール材、５・・・
上型、６・・・下型、７・・・赤外線ランプ。
第１図
（ａ）
第２図
第３図
１
２FIGS. 1(a), (b), and (c) are process diagrams for explaining the molding method according to the present invention, and FIG. 2 is a cross-sectional view of a composite material molded using the molding method of the present invention. FIG. 3 is a cross-sectional view of a composite material molded using a conventional molding method. 1.30...Composite material, 2.31...Thermoplastic reinforced plastic, 4,33...Glass wool material, 5...
Upper mold, 6...lower mold, 7...infrared lamp. Figure 1 (a) Figure 2 Figure 3 1 2
Claims (1)
にシート状のガラスウール材を配してなる複合材の成形
方法であって、加熱し軟化させた前記熱可塑性強化プラ
スチック上にガラスウール材を積層した後、上下から成
形型で加圧し、前記熱可塑性強化プラスチックの成形と
同時に前記熱可塑性強化プラスチックと前記ガラスウー
ル材との接合を行うことを特徴とする複合材の成形方法
。A method for forming a composite material in which a sheet-like glass wool material is placed on a thermoplastic reinforced plastic mixed with a glass fiber material, the glass wool material being laminated on the thermoplastic reinforced plastic that has been heated and softened. After that, pressure is applied from above and below with a mold to join the thermoplastic reinforced plastic and the glass wool material at the same time as molding the thermoplastic reinforced plastic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21027689A JPH0375141A (en) | 1989-08-15 | 1989-08-15 | Method for molding composite material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21027689A JPH0375141A (en) | 1989-08-15 | 1989-08-15 | Method for molding composite material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0375141A true JPH0375141A (en) | 1991-03-29 |
Family
ID=16586711
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21027689A Pending JPH0375141A (en) | 1989-08-15 | 1989-08-15 | Method for molding composite material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0375141A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8864926B2 (en) | 2008-03-12 | 2014-10-21 | Masonite Corporation | Method of manufacturing an impact resistant door skin from a pre-formed door skin |
-
1989
- 1989-08-15 JP JP21027689A patent/JPH0375141A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8864926B2 (en) | 2008-03-12 | 2014-10-21 | Masonite Corporation | Method of manufacturing an impact resistant door skin from a pre-formed door skin |
| US9657511B2 (en) | 2008-03-12 | 2017-05-23 | Masonite Corporation | Impact resistant door skin, door including the same, and method of manufacturing an impact resistant door skin from a pre-formed door skin |
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