JPS5855232A - Manufacture of fiber reinforced plastic molding with gel coat layer - Google Patents

Manufacture of fiber reinforced plastic molding with gel coat layer

Info

Publication number
JPS5855232A
JPS5855232A JP15443681A JP15443681A JPS5855232A JP S5855232 A JPS5855232 A JP S5855232A JP 15443681 A JP15443681 A JP 15443681A JP 15443681 A JP15443681 A JP 15443681A JP S5855232 A JPS5855232 A JP S5855232A
Authority
JP
Japan
Prior art keywords
resin
gel coat
coat layer
molding
putty
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
Application number
JP15443681A
Other languages
Japanese (ja)
Other versions
JPS6249842B2 (en
Inventor
Toshihiko Maeda
敏彦 前田
Yoshinobu Uzurano
鶉野 吉信
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Daihatsu Motor Co Ltd
Original Assignee
Daihatsu Motor Co Ltd
Daihatsu Kogyo KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Daihatsu Motor Co Ltd, Daihatsu Kogyo KK filed Critical Daihatsu Motor Co Ltd
Priority to JP15443681A priority Critical patent/JPS5855232A/en
Publication of JPS5855232A publication Critical patent/JPS5855232A/en
Publication of JPS6249842B2 publication Critical patent/JPS6249842B2/ja
Granted legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14631Coating reinforcements

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

PURPOSE:To obtain a molding without damage to appearance under the severset environment with an excellent durability by arranging a putty made up of a resin and a fillter or a fiber base material for a part susceptible to a bias of a resin composing a backup layer of a molding. CONSTITUTION:A gel coat layer 21 is formed in bottom force 41 by spray coating to arrange a putty or a fiber base material 28a for a part susceptible to a bias of resin beforehand thereby setting a preform 23 of a reinforcing material. Then, the bottom force 41 is closed putting it together with top force 42 and a hardening resin is injected from an injection port to mold. This prevent cracking by checking the generation of a resin rich part.

Description

【発明の詳細な説明】 スチックス(以下、単に1lFという)!&形品の製造
法に関する。さらに詳しくは、耐久強度にすぐれ、さら
に厳し゛い環境条件下にあってもその外観を損なわない
IFRF成形品を製造する方法に関する。
[Detailed Description of the Invention] Stix (hereinafter simply referred to as 1lF)! & Concerning the manufacturing method of shaped articles. More specifically, the present invention relates to a method for producing an IFRF molded product that has excellent durability and strength and does not lose its appearance even under severe environmental conditions.

?RPは通常硬化性樹脂、触媒、各種添加剤および補強
材を組合わせた素材から成形される強度の大きい構造材
料であり、比較的軽量でしかも多種多様な成形品に成形
することが可能であるから、自動車、船舶などから浴槽
、浄化槽、さらには平板、波板にいたる広い公費で、な
かでも比較的形状の簡単なものに使用されている。
? RP is a strong structural material that is usually molded from a combination of curable resin, catalyst, various additives, and reinforcing materials, and is relatively lightweight and can be molded into a wide variety of molded products. It is used in a wide range of public products, from automobiles and ships to bathtubs, septic tanks, and even flat and corrugated plates, especially those with relatively simple shapes.

?RP成形の主な方法としてハンドレイアップ法、スプ
レーアップ法、レジンインジエクシ曹ン法(以下、単に
Vx法という〕で代表される接触圧成形法があり、これ
らの方法のうちハンドレイアップ法およびスプレーアッ
プ法は比較的大型の?RP成形品の製造に適しているが
、作業能率がわるくて成型サイクルが長いばかりでなく
、硬化性樹脂が硬化する際に生ずる大きな収縮のために
成形品の平面が平滑にならず、成形品の表面に補強繊維
が浮き出して外観不良の原因となっている。
? The main methods of RP molding are the hand lay-up method, the spray-up method, and the contact pressure molding method represented by the resin injection molding method (hereinafter simply referred to as the Vx method). Among these methods, the hand lay-up method The spray-up and spray-up methods are suitable for producing relatively large RP molded products, but they are not only inefficient and require a long molding cycle, but also suffer from large shrinkage that occurs when the curable resin hardens. The surface of the molded product is not smooth, and reinforcing fibers protrude on the surface of the molded product, causing a poor appearance.

他方、マツチドダイ法、8MO法、BMO法などのプレ
ス成形法はへンドレイ゛γツブ法、スプレーアップ法な
どの接触圧成形法にくらべて作業能率がよく生産性の高
い成形方法であるが1接触圧成形法に(らぺて設備費が
高くつきまた成形できる製品の大きさに限界があるばか
りでなく、硬化性Il詣の硬化時の収縮による成形品表
面に補強繊維が浮き出るという欠点が見受けられる。
On the other hand, press molding methods such as the matte die method, 8MO method, and BMO method are molding methods with better work efficiency and higher productivity than contact pressure molding methods such as the Hendley gamma tube method and the spray-up method. Pressure molding has the drawbacks that not only is the equipment cost high and there is a limit to the size of the product that can be molded, but also reinforcing fibers emerge on the surface of the molded product due to shrinkage during curing of the curable resin. It will be done.

このようなIFRP成形法成形炉にあって、VI法はそ
の他の接触圧成形法に(らべて生産性が高く、また成形
品の両面とも外観が比較的よいという特徴があり、中程
度の量産に適した成形法といえる。
Among the IFRP molding furnaces, the VI method is characterized by high productivity compared to other contact pressure molding methods, as well as relatively good appearance on both sides of the molded product. It can be said that this molding method is suitable for mass production.

VI法は一般に雌雄一対のIRP製などのmtr:用い
、あらかじめガラス繊維などの補強材のプリフォームを
型内に入れ、型を閉じ、ついで適切な位置に設電された
注入孔より不飽和ポリエステル樹脂などの硬化性樹脂を
圧入光てん後注入孔に栓をし、低温(たとえば常温〜約
50°O)で硬化成形する方法であり、基本的な成形工
程は、(υ型の掃除および離型処理(ゲルコート層の形
成を行なうばあいあり) 、(2)プリフォームの充て
ん(インサート材の充てんも含む) 、(3)掴閉め1
(4)クランプ、(5)硬化性樹脂の注入、(6)硬化
、(7)!II開き、(8)脱型および(9)後処理(
パリ加工、アフターキュアーなど)からなる。
The VI method generally uses a pair of male and female MTRs made of IRP, etc. A preform of reinforcing material such as glass fiber is placed in the mold in advance, the mold is closed, and unsaturated polyester is then injected through injection holes placed at appropriate positions. This is a method of press-fitting a curable resin such as a resin, plugging the injection hole after press-fitting, and curing and molding at a low temperature (for example, room temperature to about 50°C).The basic molding process consists of (cleaning and separating the Mold processing (may involve forming a gel coat layer), (2) Filling the preform (including filling with insert material), (3) Grabbing and closing 1
(4) Clamping, (5) Injecting curable resin, (6) Curing, (7)! II opening, (8) demolding and (9) post-processing (
(Paris processing, after-cure, etc.)

しかしかかるR/1法は比較的形状が簡単な成形品に限
って適用されているのが現状であり、形状が複雑でしか
も比較的大型の成形品で耐久強度が要求されるものに適
用されたことはなかった。
However, the R/1 method is currently only applied to molded products with a relatively simple shape, and is not applied to molded products with a complex shape and relatively large size that require durable strength. I had never done that before.

しかるに本発明者らは、形状が複雑でしかも比較的大型
のものとしてたとえば車体後部に荷台を有しかつこの荷
台を覆うリヤボデーを有する車の該リヤボデーを?RP
製とすべく検討し、このFRP製リヤボデーを前述のご
ときVI法によって成形することを試みた。
However, the present inventors have proposed a rear body of a car that has a complicated shape and is relatively large, for example, a rear body that has a loading platform at the rear of the vehicle body and covers this loading platform. R.P.
An attempt was made to mold this FRP rear body using the VI method as described above.

すなわち、第1図は前記自動車のボデーの斜視図であり
、(1)は鋼謳のボデ一本体であるが、たとえばレフト
サイドパネル(2)、ライトサイドパネル(3)、リヤ
ルーフ(4)、バックドア(6)などの各一部材の7R
P化を試みた。なお(6)はフロントルーフ、())お
よび(8)はウィンドオープニング、<9)はサンルー
フである。
That is, FIG. 1 is a perspective view of the body of the automobile, and (1) is the main body made of steel, for example, the left side panel (2), the right side panel (3), the rear roof (4), 7R of each part such as back door (6)
I tried converting it to P. Note that (6) is the front roof, ()) and (8) are the window openings, and <9) is the sunroof.

以下、レフトサイドパネル(2)のIFRP化を例にと
って説明する。第2図は1BP製レフトサイドパネル(
2)の外面の斜視図、第51i!l!はその裏面の斜視
図、第4図は第2〜3図の(1)−(1)線断面図、第
5図は第4図の円(4)部の拡大図である。図面におい
″C参珍はゲルコート層、■はバック゛アップ層、に)
はガラス繊維などの補強材のプリフォームである。■は
ウィンドオープニング(γ)の周縁部に配設されるlリ
ウレタンフオーム、アクリル樹脂発泡体などからなる樹
脂フオーム製インサー)材、輪はパネル(z)の下端部
に配設される木材などからなるインサート材である。木
材のインサート材に)が設けられている部分にはポルF
孔榊が穿たれており、ボルトおよびナツトによりパネル
(2)をlデ一本体(1)に固定するようになっている
Hereinafter, the implementation of IFRP for the left side panel (2) will be explained as an example. Figure 2 shows the 1BP left side panel (
Perspective view of the external surface of 2), No. 51i! l! 4 is a sectional view taken along the line (1)-(1) in FIGS. 2 and 3, and FIG. 5 is an enlarged view of the circle (4) in FIG. 4. In the drawing, "C" is the gel coat layer, "■" is the backup layer)
is a preform of reinforcing material such as glass fiber. ■ is a resin foam insert made of l urethane foam, acrylic resin foam, etc. placed on the periphery of the window opening (γ), and the ring is made of wood, etc. placed on the lower end of the panel (z). This is an insert material. ) on the wood insert material is provided with Pol F.
Holes are drilled, and the panel (2) is fixed to the main body (1) with bolts and nuts.

前記のごとき形状のレフトサイドパネル(2)をVI法
により成形するばあい、つぎのごとき間通が発生した。
When the left side panel (2) having the shape described above was molded by the VI method, the following errors occurred.

すなわち前記形状においてはコーナ一部、“扁肉部が多
数存在するが、これらコーナ一部および扁肉部にクラン
クが発生しやすいという問題でiる。その原因はたとえ
ば第<SHの断面図に示されるごとく、VI法による成
形のはあい下型−刀にゲルコート層−をスプレー塗布に
より形成し、プリフォームに)をタットしたのち下型θ
Oと上型−を閉じ、硬化性樹脂を注入して成形するので
あるが、プリフォームに)は長さ5Qmm程$ 17)
 短イガラス繊維をバインダーにより固着したものであ
るので、曲率牛後が小さなコーナ一部位などに合致した
形状のものかえられがたく、またをにこのテリフオーム
をセットするばあいに前記のように精度がよくないので
適正な位置からずれ、そのため樹脂のリッチな部位■が
生じることになるが、これら樹脂リッチ部位−には補強
材が存在しないため強度が低く、樹脂の経時的収縮によ
りクラッタが発生しやすくなる。
In other words, in the above-mentioned shape, there are many thin-walled portions in some corners, and the problem is that cranks are likely to occur in these corner portions and thin-walled portions. As shown, after molding by the VI method, a gel coat layer is formed on the lower mold by spray coating, and a gel coat layer is applied to the preform, and then the lower mold θ is
The O and the upper mold are closed and the curable resin is injected to form the preform.The length of the preform is about 5Qmm ($17)
Since it is made of short glass fibers fixed with a binder, it is difficult to change the shape to fit a corner with a small curvature.In addition, when setting this terifohm, as mentioned above, accuracy is required. This causes the resin to shift from its proper position, resulting in resin-rich areas.However, these resin-rich areas have low strength because there is no reinforcing material, and clutter occurs due to the resin shrinking over time. It becomes easier.

ここでクラックについてさらに詳しく説明すると、樹脂
がリッチな部位(社)は5〜10%の硬化収縮をするが
、ガラス繊維で強化された部位は2〜3%しか収縮しな
いため初期または経時的に樹脂がリッチな部位−にクラ
ックが入り、そのクラックによりゲルコート層−が割れ
る。またゲルコート層−が厚すぎたばあい(通常0.3
〜0.7!l!11 、0.7mm以上は異常]は、樹
脂のリッチな部位(ロ)の割れが進行しなくてもゲルコ
ート層のクラックは進行してゆき(ゲルコート層の収縮
率も5〜1on)、パネルとしては使用できないという
現象がみられる。
To explain cracks in more detail, resin-rich parts shrink by 5 to 10% upon curing, but glass fiber-reinforced parts only shrink by 2 to 3%, so either initially or over time. Cracks appear in resin-rich areas, and the gel coat layer breaks due to the cracks. Also, if the gel coat layer is too thick (usually 0.3
~0.7! l! 11, 0.7 mm or more is abnormal] means that cracks in the gel coat layer continue to progress even if the cracks in the resin-rich area (b) do not progress (the shrinkage rate of the gel coat layer is also 5 to 1 on), and the panel cannot be used as a panel. There is a phenomenon that it cannot be used.

その対策としては、プリフォームに)を型卿、(6)の
形状に極力沿うように成形することが考えられるが、そ
れでもなおガラス繊維などの補強材の性質上樹脂リッチ
部位の存在およびそれによるクラックの発生はさけられ
ない。
As a countermeasure, it is possible to mold the preform into a mold so that it follows the shape of (6) as much as possible. Occurrence of cracks cannot be avoided.

前記のごとく形状が複雑で比較的大′聾のPRP成形品
をVI法で製造する際には種々の問題、とくに耐久強度
が小さく、厳しい環境条件下において外観が損なわれる
点で問題があり、実用化にいたっていないのが現状であ
る。
As mentioned above, there are various problems when manufacturing PRP molded products with complex shapes and relatively large deafness using the VI method, especially in that the durability is low and the appearance is impaired under harsh environmental conditions. At present, it has not been put into practical use.

しかるに本発明者らは前記の点に鑑み、耐久強度がすぐ
れ、厳しい環境条件下で外観が損なわれないFRP成形
品をVI法により製造する方法を開発すべく鋭意研究を
重ねた結果、本発明に到達した。
However, in view of the above points, the present inventors conducted extensive research to develop a method for manufacturing FRP molded products that have excellent durability and strength and do not lose their appearance under harsh environmental conditions, and as a result, the present invention was developed. reached.

すなわ゛ち本発明は、レジンインジエクシ冒ン法によっ
て複雑な形状を有し、かつその表面にゲルコート層を形
□成する7RP成形品な製造するに際し、前記成形品め
バックアツプ層を構成する樹脂が偏る部位に゛予め樹脂
とフィラーからなるパテ材または繊維基材を配設して成
形することを特徴とするゲルコート層を有するIFRF
成形品の製造方法に関する。
In other words, the present invention provides a method for forming a back-up layer for the molded product when manufacturing a 7RP molded product that has a complex shape and has a gel coat layer formed on its surface by the resin indica printing method. IFRF having a gel coat layer characterized in that a putty material or a fiber base material made of resin and filler is placed in advance in the area where the resin is distributed and then molded.
Related to a method for manufacturing molded products.

つぎに本発明の方法を前述の車体後部に荷台を有しかつ
この荷台を覆うリヤボデーを有する車の該リヤボデー、
とくにレフトサイドパネル(2)の成形に適用するばあ
い〔ライトサイドパネル(8)のばあいも同様〕を例に
とって説明する。
Next, the method of the present invention is applied to the rear body of a vehicle having a cargo bed at the rear of the vehicle body and a rear body that covers the cargo bed.
In particular, the case where it is applied to the molding of the left side panel (2) [the same applies to the case of the right side panel (8)] will be described as an example.

本発明の特徴は、バックアップ・層(2)を構成する樹
脂が偏る部位に予め樹脂とフィラーからなるパテ材また
は繊維基材を配設して成形することにより樹脂リッチ部
位−の発生を防止(、それによりり、ラックの発生を防
ぐことにある。
The feature of the present invention is to prevent the occurrence of resin-rich areas by placing a putty material or fiber base material made of resin and filler in advance in areas where the resin constituting the backup layer (2) is concentrated. , thereby preventing the occurrence of racks.

この点を図面により説明すると、第7図の断面図に示さ
れるごとく、下型@優にゲルコー)層に)をスプレー塗
布により形成し、樹脂が偏る部位に予め前記特定のパテ
材または繊維基材を配役し〔第7図においてはパテ材(
28&)を配設〕、補強材のプリフォーム(2)をセッ
トする〔同時にインサート材(図示されていない)もセ
ットする〕。つ゛いで上型(ロ)を合わせて閉じ、注入
孔(図示されていない)より硬化性樹脂を注入して成形
する。
To explain this point with the drawings, as shown in the cross-sectional view of Fig. 7, a lower mold (on the gelcoe layer) is formed by spray coating, and the specific putty material or fiber base is preliminarily applied to the area where the resin will be distributed. [In Fig. 7, putty material (
28&)], and the reinforcing material preform (2) is set [insert material (not shown) is also set at the same time]. The upper mold (b) is then closed, and curable resin is injected through the injection hole (not shown) to perform molding.

前記構成によるときは、IIWiが偏る部位に予めフィ
ラーを含むパテ材または!l繊維基材配設す−るから、
えられるνRPti4形品には樹脂リッチ部位が発生せ
ず、そのため樹脂リッチ部位の存在に起因するクランク
の発生が防止されるのである。
When using the above configuration, putty material containing filler in advance in the area where IIWi is biased or! Since the fiber base material is provided,
Resin-rich parts do not occur in the resulting νRPti4 type product, and therefore the occurrence of cranks due to the presence of resin-rich parts is prevented.

本発明において、ゲルコート層−の形成に用いる硬化性
樹脂としては通常のゲルコート層用樹脂がいずれも用い
られ、たとえば不飽和ポリエステル樹脂などがあげられ
る。不飽和ポリエステル樹脂における不飽和ポリエステ
ルとしては多塩基酸成分として無水!レイン酸またはこ
れとイソフタル酸を共重合したものなどがあげられ、架
橋性七ツマ−としてはスチレンなどがあげられる。
In the present invention, as the curable resin used to form the gel coat layer, any of the usual resins for gel coat layers can be used, such as unsaturated polyester resins. The unsaturated polyester in unsaturated polyester resin is anhydrous as a polybasic acid component! Examples include leic acid or a copolymer of leic acid and isophthalic acid, and examples of crosslinkable heptamers include styrene.

ゲルフート暦学υの厚さは0.3〜0.6111!El
の範囲が好ましく、外観の美しい成形品が見られる。
The thickness of the Gelfut calendar υ is 0.3~0.6111! El
A range of 1 is preferable, and a molded product with a beautiful appearance can be seen.

ゲルコート層−9が0.6mmより厚いとクチツクが発
生しやす<、0,5鳳mより薄いとバックアツプ層に)
の補強材が透けて見えるとともに空気の影響を受けてゲ
ル化が不充分となる。ゲルコート層細の形成方法はとく
に制限されず、常法により行なえばよい。
If the gel coat layer-9 is thicker than 0.6 mm, scratches are likely to occur. If it is thinner than 0.5 mm, it becomes a back-up layer)
The reinforcing material is transparent and gelation is insufficient due to the influence of air. The method for forming the gel coat layer is not particularly limited, and any conventional method may be used.

バックアップ層−の形成に用いる硬化性1t&としては
通常のり成形用樹脂がいずれも用いられ、たとえば不飽
和ポリエステル樹脂、エポキシ樹脂、エポキシアタリレ
ート樹脂、ジアリルフタレー)樹脂などがあげられる。
As the curable resin used for forming the backup layer, any ordinary resin for adhesive molding can be used, such as unsaturated polyester resin, epoxy resin, epoxy arylate resin, diallylphthalate resin, and the like.

不飽和ポリエステル樹脂における不飽和ポリエステルと
しては多塩基酸成分として無水!レイン酸またはこれと
7タル酸を共重合したものなどがあげられ、架橋性七ツ
マ−としてはスチレンなどがあげられる。
The unsaturated polyester in unsaturated polyester resin is anhydrous as a polybasic acid component! Leic acid or a copolymer of leic acid and heptadalic acid may be used, and examples of the crosslinkable heptamer include styrene.

補強材のプリフォーム■に用いる補強材としてはガラス
繊維、炭素繊維、石綿、セラミックス繊維、金属繊維な
どの無機繊維や動植物繊維、合成繊維などの有機繊細が
使用できる。とくにガラス繊維が好ましい。チリ7オー
ムーの成形は常法により行なえばよい。
As the reinforcing material used in the reinforcing material preform (■), inorganic fibers such as glass fiber, carbon fiber, asbestos, ceramic fiber, and metal fiber, and organic fibers such as animal and plant fibers and synthetic fibers can be used. Glass fiber is particularly preferred. Molding of 7 ohm chili may be carried out by a conventional method.

本発明において、樹脂が偏る部位に予め設けられるパテ
材(28m)はフィラーと少量の硬化性樹脂とからなる
ものである。フィラーとしては炭酸カルシウム、クレー
、タルク、シリカ、アスベストなどが用いられ、硬化性
樹脂としてはバックアツプ層に)におけるものと同様な
ものが用いられる。
In the present invention, the putty material (28 m) provided in advance in the area where the resin is distributed is made of filler and a small amount of curable resin. As the filler, calcium carbonate, clay, talc, silica, asbestos, etc. are used, and as the curable resin, the same one as in the back-up layer) is used.

しい。硬化性樹脂の割合が20部より少ないと塵内の所
望の位電に配設しがたく、一方70部より多いと蓋の形
状に沿わない。
Yes. If the proportion of the curable resin is less than 20 parts, it will be difficult to arrange the dust at a desired potential, while if it is more than 70 parts, it will not conform to the shape of the lid.

本発明の方法において前記パテ材(28m)を用いるば
あい、樹脂が偏る部位に予めパテ材(28m)を配設す
る点を除いては、通常のめ法によって成形を行なえばよ
い。
When the putty material (28 m) is used in the method of the present invention, the molding may be carried out by a normal molding method, except that the putty material (28 m) is placed in advance in the area where the resin is unevenly distributed.

つぎにパテ材(28m)にかえて繊維基材を用いるばあ
いを第8図によって説明すると、繊維基材(28b)と
してガ、、ラス繊維を用い、その、ロービングを5mm
程度の長さに裁断したチョツプドガラスを塗布後5〜1
0分経過したゲルコートにのせて手先で押え、好ましく
はそのすぐうえにゲルコート層の外観を向上させるため
のサーフ、ニスマット員を敷き、その後の工程はパテ材
(28a)を用いるばあいと同゛−の作業を行なえばよ
い。
Next, the case where a fiber base material is used instead of the putty material (28m) will be explained with reference to FIG.
After applying chopped glass cut to a length of about 5 to 1
Place it on the gel coat that has been used for 0 minutes and press it with your hands. Preferably, spread a surf or varnish mat member immediately above it to improve the appearance of the gel coat layer. The subsequent process is the same as when using putty material (28a). All you have to do is -.

前記においては、本発明の方法を軸−柔寓4車体後部に
荷台を有しかつこの荷台を覆うリヤボデーを有する自動
車におけるレフトずイドパネル(2)およびライトサイ
ドパネル(3)の成形に適用するばあいを例にとって説
明したが、リヤルー y (4)、パンクドア(6)、
フロントルーフ(6)などの部材も同様に成形できるこ
とはもちろんであり、さらに本発明の方法はその他各種
の自動車部品、浴槽などの日常生活用品、ポートなどの
ルージャー用品などにも適用しうるものである。
In the above description, the method of the present invention is applied to the molding of the left side panel (2) and the right side panel (3) of an automobile having a cargo bed at the rear of the four-axle-flexible vehicle body and a rear body that covers this cargo bed. I explained using Ai as an example, but Riyaru y (4), Punk Door (6),
It goes without saying that components such as the front roof (6) can also be molded in the same way, and the method of the present invention can also be applied to various other automobile parts, daily life items such as bathtubs, and routine items such as ports. be.

つぎに実施例および比較例をあげて本発明の詳細な説明
する。
Next, the present invention will be explained in detail with reference to Examples and Comparative Examples.

実施例 第2〜5図に示される形状のFRP製レフトサイドパネ
ル(2) (71116層の平均厚さ:約5m)を製造
した。
Example A left side panel (2) made of FRP (average thickness of 71116 layers: about 5 m) having the shape shown in FIGS. 2 to 5 was manufactured.

不飽和lリエステル樹脂(エチレングリコール、無水!
レイン酸およびイソフタル酸からなる不飽和lリエステ
ル100部、スチレン30部、メチルエチルケトンパー
オキサイド1部からなるもの)を下mρ9にスプレー塗
布して厚さ0.311mのゲルコート層を形成した。
Unsaturated l-lyester resin (ethylene glycol, anhydrous!
A gel coat layer having a thickness of 0.311 m was formed by spray coating the lower mρ9 with 100 parts of unsaturated l-lyester consisting of leic acid and isophthalic acid, 30 parts of styrene, and 1 part of methyl ethyl ketone peroxide.

一方、プリフォーム型に常法によりガラス繊維(繊維径
=10μ、繊維長:約5am )を不飽和lリエステ#
樹脂とともに吹付けてプリフォームを作製した。
Meanwhile, glass fibers (fiber diameter = 10μ, fiber length: approximately 5am) were added to the preform mold using an ordinary method.
A preform was made by spraying it with resin.

前記プリフォームの作製に用いたと同じガラス繊維10
0部と不飽和ポリエステル樹脂(プルピレングリコール
、フマル酸および無水フタル酸からなる不飽和ポリエス
テル100部、スチレン30部、ベンゾイルパーオキサ
イド1部からなるもの)50部とを均一に混合してえた
パテ材を前記ゲルコート層上に、樹脂が偏る部位(コー
ナ一部および偏肉部)に予め配設した。
The same glass fiber 10 used for producing the preform
A putty obtained by uniformly mixing 0 parts of 0 parts and 50 parts of an unsaturated polyester resin (100 parts of an unsaturated polyester consisting of propylene glycol, fumaric acid and phthalic anhydride, 30 parts of styrene, and 1 part of benzoyl peroxide). A material was placed in advance on the gel coat layer at areas where the resin was unevenly distributed (parts of corners and uneven thickness areas).

ついで前記プリフォームをポリウレタンフォームのイン
サート材−および木材のインサート材に)とともにセッ
トした。
The preform was then set together with a polyurethane foam insert and a wood insert.

ついで月19と上型−を閉じ、注入孔より不飽和ポリエ
ステル樹脂(エチレングリコール、無水!レイン酸およ
びフタル酸からなる不飽和ポリエステル100部、スチ
レン30部およびメチルエチルケトンパーオキサイド1
部からなるもの)を6kg/10vm の注入圧で注入
し、30分経過後離型し70 qOX 5hrの条件で
77ターキユアし、成形品をえた。
Next, close the upper mold and pour into the injection hole an unsaturated polyester resin (100 parts of unsaturated polyester consisting of ethylene glycol, anhydride, leic acid and phthalic acid, 30 parts of styrene, and 1 part of methyl ethyl ketone peroxide.
The mixture was injected at an injection pressure of 6 kg/10 vm, and after 30 minutes, the mold was released, and the molded product was cured at 70 qOX for 5 hours.

えられた成形品を冷熱サイクル試験に付したところ、ク
ランクの発生はまったく認められなかった。またパテ材
にかえてチ旨ツブトガラスを用いたばあいも同じ結果が
見られた。またこのように大型のパネルをゲルコート層
を一体にして仕上げることができるので塗装設備が全く
不要になる。
When the obtained molded product was subjected to a thermal cycle test, no cranking was observed at all. The same results were also observed when Chimatsubuto glass was used instead of the putty material. Furthermore, since large panels such as this can be finished with the gel coat layer integrated, there is no need for any painting equipment.

比較例 パテ材の配設を省、略したほかは実施例と一様にしてP
RP成形品をえた。
Comparative Example P was the same as the example except that the placement of putty material was omitted.
I got an RP molded product.

見られた成形品を冷熱サイクル試験に付したところ、コ
ーナ一部および偏肉部にクラックの発生が認められた。
When the molded product was subjected to a thermal cycle test, cracks were observed in some corners and uneven thickness areas.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は車体後部に荷台を有しかつこの荷台を覆うリヤ
ボデーを有する自動車のポデーの斜視図、第2図および
第3fiAはそれぞれIFRP製レフトサイドパネルの
外面および裏面を示す斜視図、第4図は第2〜3図の(
1)−(力線断面図、第5図は第4図の一部拡大図、8
6図はコーナ一部において樹脂リッチ部位が発生する状
態を示す断面図、第7図は本発明の方法にしたがって樹
脂が偏る部位に予めパテ材を配設する態様を示す断面図
、第8図は前記パテ材にかえて繊維基材を用いる態様を
示す断面図である。 (図面の主要符号) (2):レフトサイドパネル (3)ニライトサイドパネル (4):リャルー7 (6):パツクドア (6) : yロントルーフ ψす:グルコ−1層 に)寡バッタアップ層 に)ニブリフォーム に):樹脂リッチ部位 (28m) !パテ材 (281j :繊維基材 θυ、Qa : lI 21図 ―
Fig. 1 is a perspective view of a car pode that has a cargo bed at the rear of the vehicle body and a rear body that covers this cargo bed; Figs. The figures are shown in Figures 2 and 3 (
1) - (cross-sectional view of lines of force, Figure 5 is a partially enlarged view of Figure 4, 8
Fig. 6 is a sectional view showing a state in which a resin-rich area occurs in a part of the corner, Fig. 7 is a sectional view showing a mode in which putty material is placed in advance in the area where the resin is unevenly distributed according to the method of the present invention, and Fig. 8 FIG. 2 is a sectional view showing an embodiment in which a fiber base material is used instead of the putty material. (Main symbols in the drawing) (2): Left side panel (3) Nilight side panel (4): Ryaru 7 (6): Park door (6): y Ronto roof ψ: Gluco-1 layer) Few grasshopper up layer ) Nibriform): Resin-rich area (28m)! Putty material (281j: fiber base material θυ, Qa: lI Figure 21-

Claims (1)

【特許請求の範囲】[Claims] 1、レジンインジエタシ曹、ン法によって複雑な形状資
有し、かつその表面にゲルコー)71を形成する繊維強
化プラスチックス成形品を製造するに際し、前記成形品
のパック771層を構成する樹脂が偏!1郷位に予め樹
脂とフィラーからなるパテ材または繊維基材を配設して
成形することを特徴とするゲルコート層を有する繊維強
化プラスチックス成形品の製造方法0
1. When manufacturing a fiber-reinforced plastic molded product that has a complex shape and has a gel coat layer 71 on its surface by the resin injecting method, the resin constituting the pack 771 layer of the molded product is used. is biased! A method for producing a fiber-reinforced plastic molded product having a gel coat layer, characterized in that a putty material or a fiber base material made of resin and filler is placed in advance at the first position and then molded.
JP15443681A 1981-09-28 1981-09-28 Manufacture of fiber reinforced plastic molding with gel coat layer Granted JPS5855232A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15443681A JPS5855232A (en) 1981-09-28 1981-09-28 Manufacture of fiber reinforced plastic molding with gel coat layer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15443681A JPS5855232A (en) 1981-09-28 1981-09-28 Manufacture of fiber reinforced plastic molding with gel coat layer

Publications (2)

Publication Number Publication Date
JPS5855232A true JPS5855232A (en) 1983-04-01
JPS6249842B2 JPS6249842B2 (en) 1987-10-21

Family

ID=15584145

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15443681A Granted JPS5855232A (en) 1981-09-28 1981-09-28 Manufacture of fiber reinforced plastic molding with gel coat layer

Country Status (1)

Country Link
JP (1) JPS5855232A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013203611A1 (en) * 2013-03-04 2014-09-04 Frimo Group Gmbh Process for producing a fiber composite component with special composite surfaces

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013203611A1 (en) * 2013-03-04 2014-09-04 Frimo Group Gmbh Process for producing a fiber composite component with special composite surfaces

Also Published As

Publication number Publication date
JPS6249842B2 (en) 1987-10-21

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