JPH0472499A - Manufacture of fiber reinforced plastic fan - Google Patents
Manufacture of fiber reinforced plastic fanInfo
- Publication number
- JPH0472499A JPH0472499A JP18377890A JP18377890A JPH0472499A JP H0472499 A JPH0472499 A JP H0472499A JP 18377890 A JP18377890 A JP 18377890A JP 18377890 A JP18377890 A JP 18377890A JP H0472499 A JPH0472499 A JP H0472499A
- Authority
- JP
- Japan
- Prior art keywords
- thermosetting plastic
- fiber material
- reinforcing fiber
- mold
- plastic composition
- 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
- 238000004519 manufacturing process Methods 0.000 title claims description 8
- 229920002430 Fibre-reinforced plastic Polymers 0.000 title claims description 5
- 239000011151 fibre-reinforced plastic Substances 0.000 title claims description 5
- 229920001187 thermosetting polymer Polymers 0.000 claims abstract description 20
- 239000011162 core material Substances 0.000 claims abstract description 16
- 239000000463 material Substances 0.000 claims abstract description 14
- 239000012783 reinforcing fiber Substances 0.000 claims abstract description 14
- 239000000203 mixture Substances 0.000 claims abstract description 11
- 239000007788 liquid Substances 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims description 4
- 238000000465 moulding Methods 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 3
- 239000002657 fibrous material Substances 0.000 claims description 2
- 238000007664 blowing Methods 0.000 abstract description 5
- 241001417524 Pomacanthidae Species 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 101150009512 NPVF gene Proteins 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は、繊維強化プラスチック〈以下ｒＦＲＰ」とい
う）ファンの製造法に係り、詳しくは三次元曲面を有す
る翼体の外観品質並びに送風特性の向上を図ったＦＲＰ
ファンの製造法に関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a method for manufacturing fiber-reinforced plastic (hereinafter referred to as rFRP) fans, and more specifically, to improving the appearance quality and air blowing characteristics of a blade body having a three-dimensional curved surface. Improved FRP
Concerning the manufacturing method of fans.
［従来技術とその課題］
従来ＦＲＰｆＭファンは、金属製のファンに比較して軽
量かつ耐蝕性に優れているために多用されているが、Ｆ
ＲＰファンの成形にあたり、成形金型のキャビティ内で
翼体の外殻を構成する強化繊維材の相互間に、発泡ポリ
ウレタンの板材やポリエステル繊維の不織布等の軽量芯
材を積層配置したのち、金型キャビティ内に液状熱硬化
性プラスチックを注入し全体を硬化しているが、重ね合
わせ芯材相互間に生ずる段部には、熱硬化性プラスチッ
クが行き渡らす、封じ込められた空気が気泡として残留
したり、表面に欠落部や凹陥部を生じて、単にファンの
外観を損なうのみでなく品質の低下を招き、所要の送風
特性か得られないと云う問題があった。[Prior art and its issues] Conventional FRPfM fans are widely used because they are lighter and have superior corrosion resistance compared to metal fans.
When molding an RP fan, lightweight core materials such as foamed polyurethane plates and non-woven polyester fibers are laminated between the reinforcing fiber materials that make up the outer shell of the wing body in the cavity of the molding die. Liquid thermosetting plastic is injected into the mold cavity and the entire body is cured, but trapped air remains as bubbles in the stepped areas between the stacked core materials, where the thermosetting plastic spreads. In addition, there are problems in that missing portions and recessed portions are formed on the surface, which not only impairs the appearance of the fan but also causes a deterioration in quality, making it impossible to obtain the required air blowing characteristics.
［課題を解決するための手段］
本発明は、上記課題を解決するためのＦＲＰファンの製
造法であって、その要旨は、翼体と該翼体を支持する取
付は軸とが一体をなす繊維強化グラスチックファンを製
造するにあなり、上下分割成形金型の下型キャビティ内
全面に強化繊維材を敷き、該敷設強化繊維材の翼体形成
部上に、取付は軸方向に向け順次肉厚となるように複数
枚の軽量芯材を重ね合わせ、該重ね合わせ芯材相互間の
翼体先端方向に生する段部に、熱硬化性プラスチック組
成物を塗布して平坦な傾斜面を形設したのち、翼体から
取付は軸に至る全面に上記同様の強化繊維材を被せて上
型を閉じ、取付は軸側のキャビティ内に液状の熱硬化性
プラスチックを注入し、硬化させることを特徴とする繊
維強化プラスチックファンの製造法である。[Means for Solving the Problems] The present invention is a method for manufacturing an FRP fan to solve the above problems, and the gist thereof is that a blade body and a shaft that supports the blade body are integrally formed. In order to manufacture a fiber-reinforced glass fan, a reinforcing fiber material is spread all over the inside of the lower mold cavity of a molding mold that is divided into upper and lower parts, and the reinforcing fiber material is installed on the blade forming part of the spread reinforcing fiber material in order in the axial direction. A plurality of lightweight core materials are stacked together so as to have a thick wall, and a thermosetting plastic composition is applied to the stepped portion between the stacked core materials in the direction toward the tip of the wing body to form a flat sloped surface. After forming, the entire surface from the wing body to the shaft is covered with reinforcing fiber material similar to the above, and the upper mold is closed.For installation, liquid thermosetting plastic is injected into the cavity on the shaft side and hardened. This is a method for manufacturing a fiber-reinforced plastic fan characterized by:
以下、本発明の実施例を図面に基づき具体的に説明する
。Embodiments of the present invention will be specifically described below with reference to the drawings.
第１図（イ）〜（ニ）は本発明を工程順に断面図で示し
、第２図は、第１図（ニ）のＦＲＰファンを■−■矢視
平面透視図で示す。FIGS. 1(a) to (d) show the present invention in cross-sectional views in the order of steps, and FIG. 2 shows the FRP fan of FIG.
第１図（イ）に断面図で示す如く、先づ上下分割金型の
下型ＡのキャビティＢ内に、翼体１形成部から取付は軸
２形成部全面に亘り、長繊維状のガラスマットやガラス
ロービング等の強化繊維材１１を敷き詰め、次に第１図
（ロ）に示す如く、該強化繊維材１１の翼体１形成部上
に、取付は軸２形成部方向に向け順次肉厚となるように
、発泡ポリウレタン薄板やポリエステル繊維の不織布等
の軽量芯材３を重ね合わせ、そして重ね合わせ芯材３の
相互間の翼体１先端方向（図の左方向）に生ずる段部３
′に、未硬化の液状熱硬化性プラスチックまたは該液状
熱硬化性プラスチックにチョツプドストランドを分散し
て増粘させた組成物４を塗布して平坦な傾斜面を形設し
、しがるのち第１図（ハ）に示す如く、上記第１図（イ
）と同様の強化繊維材１１を翼体１形成部から取付は軸
２形成部に亘る全面に被せ、そして上型Ａ′の取付は軸
２形成部のキャビティＢ内に通ずる注入口Ｃから、未硬
化の液状熱硬化性プラスチックを矢印方向から圧入して
前記翼体１形成部の芯材３を囲繞し、取付は軸２形成部
に充填された強化繊維材１１の隅々まで浸透させたのち
、常温乃至若干加温して熱硬化性グラスチックを硬化さ
せたのち開型すると、第１図（ニ）に示すＦＲＰファン
が得られる。As shown in the cross-sectional view in Figure 1 (A), first, long fiber glass is installed in the cavity B of the lower mold A of the upper and lower split mold, from the blade 1 forming part to the entire shaft 2 forming part. A reinforcing fiber material 11 such as a mat or glass roving is spread, and then, as shown in FIG. Lightweight core materials 3 such as foamed polyurethane sheets or non-woven polyester fibers are overlapped so that the thickness is increased, and a stepped portion 3 is formed between the overlaid core materials 3 toward the tip of the wing body 1 (toward the left in the figure).
', an uncured liquid thermosetting plastic or a composition 4 made by dispersing chopped strands in the liquid thermosetting plastic to increase its viscosity is applied to form a flat inclined surface and tied. Later, as shown in FIG. 1(C), a reinforcing fiber material 11 similar to that shown in FIG. For installation, uncured liquid thermosetting plastic is press-fitted in the direction of the arrow from the injection port C leading into the cavity B of the shaft 2 forming part to surround the core material 3 of the wing body 1 forming part. After permeating every corner of the reinforcing fiber material 11 filled in the forming part, the thermosetting glasstic is cured by heating to room temperature or slightly and then opened, resulting in the FRP fan shown in FIG. 1(d). is obtained.
本発明で重ね合わせた軽量芯材３相互間の翼体１先端方
向に生ずる段部３′には、成形金型の取付は軸２側に設
けた注入口Ｃがら圧入される熱硬化性プラスチックが行
き渡り難く、空気を抱き込む死角を形成するので、上記
の如く予め段部３′に熱硬化性プラスチック組成物４を
塗布して平坦面を形成しておくことが肝要である。In the present invention, a thermosetting plastic is press-fitted into the stepped portion 3' that occurs toward the tip of the blade body 1 between the lightweight core materials 3 stacked on top of each other through the injection port C provided on the shaft 2 side. Since it is difficult for the thermosetting plastic composition 4 to spread across the stepped portion 3', forming a blind spot where air is trapped, it is important to apply the thermosetting plastic composition 4 to the stepped portion 3' in advance to form a flat surface as described above.
なお、重ね合わせ芯材３相互間のＸ体ｘｒＮ＠方向に生
ずる段部３″には、取付は軸２方向がらの熱硬化性プラ
スチックが充填され易いので、予め上述の組成物を塗布
して平坦面に形成しておく必要はない。Note that the stepped portions 3'' that occur in the It is not necessary to form it on a flat surface.
［発明の効果〕 本発明は上記構成よりなるので下記効果を奏する。[Effect of the invention〕 Since the present invention has the above configuration, it has the following effects.
即ち本発明によれば、ファン翼体内で強化繊維材に包ま
れた軽量芯材が、取付は軸方向に向け順次肉厚となるよ
うに積層され、該積層芯材の相互間の翼先端方向に生ず
る段部が、成形金型の型締め前に熱硬化性プラスチック
組成物で埋められて平坦な傾斜面に形成されており、こ
の状態のもとに熱硬化性グラスチックが注入されるので
、熱硬化性プラスチックの行き渡らない死角を生ずるこ
とがなく、従って気泡や凹陥部のない外観並びに所要の
送風特性を具えた品質の優れたＦＲＰファンが得られる
ものである。That is, according to the present invention, the lightweight core material wrapped in a reinforcing fiber material is installed in the fan blade body and is laminated in the axial direction so that the wall thickness increases sequentially, and the stacked core materials are stacked in the direction of the blade tip between each other. Before the mold is closed, the stepped portion is filled with a thermosetting plastic composition to form a flat sloped surface, and it is under this condition that the thermosetting plastic is injected. Therefore, it is possible to obtain an FRP fan of excellent quality, which does not create a dead zone where the thermosetting plastic does not reach, and has an appearance free of bubbles or recesses, and has the required air blowing characteristics.
第１図（イ）〜（ニ）は本発明を工程順に断面図で示し
、第２図は、第１図（ニ）のＦＲＰファンを■−■矢視
平面透視図で示す。
１・・・・・・翼体、 １１・・・・・・強化
繊維材、２・・・・・・取付は軸、 ３・・・・・
・軽量芯材、４・・・・・・組成物、
Ａ・・・・・・下型、 Ａ′・旧・・上型Ｂ・
・・・・・キャビティ、 Ｃ・・・・・・注入口ちり
りつ
工
（ハ）
Ｆ
グ
皿
！FIGS. 1(a) to (d) show the present invention in cross-sectional views in the order of steps, and FIG. 2 shows the FRP fan of FIG. 1... Wing body, 11... Reinforced fiber material, 2... Mounted on shaft, 3...
- Lightweight core material, 4... Composition, A... Lower mold, A' Old... Upper mold B.
...Cavity, C...Inlet chiritsu construction (c) F plate!
Claims (1)
強化プラスチックファンを製造するにあたり、上下分割
成形金型の下型キャビティ内全面に強化繊維材を敷き、
該敷設強化繊維材の翼体形成部上に、取付け軸方向に向
け順次肉厚となるように複数枚の軽量芯材を重ね合わせ
、該重ね合わせ芯材相互間の翼体先端方向に生ずる段部
に、熱硬化性プラスチック組成物を塗布して平坦な傾斜
面を形設したのち、翼体から取付け軸に至る全面に上記
同様の強化繊維材を被せて上型を閉じ、取付け軸側のキ
ャビティ内に液状の熱硬化性プラスチックを注入し、硬
化させることを特徴とする繊維強化プラスチックファン
の製造法。In manufacturing a fiber-reinforced plastic fan in which a blade body and a mounting shaft that supports the blade body are integrated, a reinforcing fiber material is spread all over the inside of the lower mold cavity of a molding mold that is divided into upper and lower parts.
A plurality of lightweight core materials are stacked on top of the wing body forming portion of the laid reinforced fiber material so that the thickness increases sequentially in the direction of the installation axis, and a step is formed between the stacked core materials in the direction of the tip of the wing body. After applying a thermosetting plastic composition to form a flat inclined surface, the entire surface from the wing body to the mounting shaft is covered with reinforcing fiber material similar to the above, the upper mold is closed, and the upper mold is closed. A method for manufacturing a fiber-reinforced plastic fan, characterized by injecting liquid thermosetting plastic into a cavity and curing it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18377890A JP2866716B2 (en) | 1990-07-11 | 1990-07-11 | Manufacturing method of fiber reinforced plastic fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18377890A JP2866716B2 (en) | 1990-07-11 | 1990-07-11 | Manufacturing method of fiber reinforced plastic fan |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0472499A true JPH0472499A (en) | 1992-03-06 |
| JP2866716B2 JP2866716B2 (en) | 1999-03-08 |
Family
ID=16141782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18377890A Expired - Fee Related JP2866716B2 (en) | 1990-07-11 | 1990-07-11 | Manufacturing method of fiber reinforced plastic fan |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2866716B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6251971A (en) * | 1985-08-30 | 1987-03-06 | Morinaga & Co Ltd | Production of drink or such preservable for long period without causing precipitate |
-
1990
- 1990-07-11 JP JP18377890A patent/JP2866716B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6251971A (en) * | 1985-08-30 | 1987-03-06 | Morinaga & Co Ltd | Production of drink or such preservable for long period without causing precipitate |
| JPH0579306B2 (en) * | 1985-08-30 | 1993-11-02 | Morinaga & Co |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2866716B2 (en) | 1999-03-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |