JPH03132313A - Method of molding hollow body - Google Patents
Method of molding hollow bodyInfo
- Publication number
- JPH03132313A JPH03132313A JP27111489A JP27111489A JPH03132313A JP H03132313 A JPH03132313 A JP H03132313A JP 27111489 A JP27111489 A JP 27111489A JP 27111489 A JP27111489 A JP 27111489A JP H03132313 A JPH03132313 A JP H03132313A
- Authority
- JP
- Japan
- Prior art keywords
- core
- sand
- molding
- pressure
- golf club
- 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 20
- 238000000034 method Methods 0.000 title claims description 6
- 239000004576 sand Substances 0.000 claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229920001187 thermosetting polymer Polymers 0.000 claims abstract description 8
- 239000011230 binding agent Substances 0.000 claims abstract description 7
- 238000013007 heat curing Methods 0.000 claims abstract description 3
- 239000007787 solid Substances 0.000 claims abstract 3
- 239000002131 composite material Substances 0.000 claims description 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 20
- 229920000049 Carbon (fiber) Polymers 0.000 abstract description 4
- 239000004917 carbon fiber Substances 0.000 abstract description 4
- 239000003822 epoxy resin Substances 0.000 abstract description 4
- 229920000647 polyepoxide Polymers 0.000 abstract description 4
- 230000007547 defect Effects 0.000 abstract description 2
- 238000010438 heat treatment Methods 0.000 abstract description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract description 2
- 239000000377 silicon dioxide Substances 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract 2
- 239000000853 adhesive Substances 0.000 abstract 1
- 239000012670 alkaline solution Substances 0.000 abstract 1
- 150000001875 compounds Chemical class 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 description 4
- 239000000956 alloy Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 238000001723 curing Methods 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000011343 solid material Substances 0.000 description 2
- 229920005992 thermoplastic resin Polymers 0.000 description 2
- 239000013585 weight reducing agent Substances 0.000 description 2
- 241000288673 Chiroptera Species 0.000 description 1
- 239000004760 aramid Substances 0.000 description 1
- 229920006231 aramid fiber Polymers 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920006241 epoxy vinyl ester resin Polymers 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002075 main ingredient Substances 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- -1 organic acid ester Chemical class 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 239000012783 reinforcing fiber Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 239000011134 resol-type phenolic resin Substances 0.000 description 1
- 238000001721 transfer moulding Methods 0.000 description 1
- 229920006337 unsaturated polyester resin Polymers 0.000 description 1
- 229920001567 vinyl ester resin Polymers 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は複合材料からなる中空体の新規な成形方法に関
するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a novel method for molding hollow bodies made of composite materials.
〔従来の技術及び発明が解決しようとする課題〕熱硬化
性複合材料による中空化及び軽量化は、従来低融点合金
、ガラスバルーンを用いた成形物、熱可塑性樹脂の発泡
体等の使用で達成されてｂた。[Prior art and problems to be solved by the invention] Hollowness and weight reduction using thermosetting composite materials have conventionally been achieved by using low melting point alloys, molded products using glass balloons, thermoplastic resin foams, etc. It was done.
しかしながら、従来使用されている低融点合金は取扱い
性と安全性、ガラスバルーンを用すた成形物あるいは熱
可塑性樹脂の発泡体は耐圧性が低く、成形圧力が充分か
けられなＡために充填不良や肉厚の変化＄に不具合が発
生していた。本発明はかかる従来法の問題点を解決した
成形方法を提供するものである。However, conventionally used low-melting point alloys are difficult to handle and safe, and molded products using glass balloons or thermoplastic resin foams have low pressure resistance, and filling failures occur because sufficient molding pressure cannot be applied. There were problems with changes in wall thickness. The present invention provides a molding method that solves the problems of the conventional methods.
即ち本発明の要旨は熱硬化性複合材料を用すて中空体を
変形するに際し、砂を粘結剤で固めた固形物からなる中
子の周囲を熱硬化性複合材料で被覆して加熱硬化成形後
、該中子を水又はアルカリ性水により除去することを特
徴とする中空体の成形方法にある。That is, the gist of the present invention is that when a hollow body is deformed using a thermosetting composite material, the periphery of a core made of a solid material made of sand hardened with a binder is covered with the thermosetting composite material and then heated and hardened. The method for molding a hollow body is characterized in that after molding, the core is removed with water or alkaline water.
本発明に用いる粘結剤は一種のバインダーであって、鋳
金の造型に使用されるものである。The binder used in the present invention is a type of binder, and is used for molding cast metal.
例えばアルカリレゾール型フェノール樹脂の水溶液を主
剤とし、有機酸エステルの液状複合組成物を硬化剤とし
て用いる粘結剤が挙げられる。また本発明に用いる砂は
通常の鋳物砂が良い。砂の種類によって硬化特性や待機
時間に影響を与えることがある。For example, a binder that uses an aqueous solution of an alkaline resol type phenolic resin as a main ingredient and a liquid composite composition of an organic acid ester as a curing agent can be mentioned. Further, the sand used in the present invention is preferably ordinary foundry sand. The type of sand can affect curing characteristics and waiting time.
配合は特に制限するものではないが、砂１００重量部に
対し主剤を１〜５重量部、主剤に対して硬化剤１０〜５
０重量部配合するのが好まし０
本発明で中子の周囲を熱硬化性複合材料（以下ＰＲＰと
略記することあり）で被覆して加熱硬化成形するには、
圧縮成形法、トランスファー成形法、射出成形法等が採
用できる。熱硬化性複合材料としては、例えばエポキシ
樹脂、ビニルエステル樹脂、フェノール樹脂、不飽和ポ
リエステル樹脂と炭素繊維、ガラス繊維、アラミド繊維
の補強繊維からの組合せのものが挙けられる。中空体と
してゴルフクラブのヘッドを対象とするときは、軽量化
、耐衝撃性の面から炭素繊維とエポキシ樹脂あるいはビ
ニルエステル樹脂との組合せが好しく、ＢＭＯを使用す
るとコスト並びに操作性の点からより好ましｂ０成形後
中子を除去するには水あるいはアルカリ性水好適には３
０〜９０℃の温水又はアルカリ性温水を使用するのが、
中子を速やかに崩壊し除去する点で好ましい。The composition is not particularly limited, but 1 to 5 parts by weight of the main agent to 100 parts by weight of sand, and 10 to 5 parts by weight of the hardening agent to the main agent.
It is preferable to blend 0 parts by weight. In the present invention, in order to cover the core with a thermosetting composite material (hereinafter sometimes abbreviated as PRP) and heat-cure it,
Compression molding, transfer molding, injection molding, etc. can be used. Examples of thermosetting composite materials include combinations of epoxy resins, vinyl ester resins, phenol resins, unsaturated polyester resins, and reinforcing fibers such as carbon fibers, glass fibers, and aramid fibers. When using a golf club head as a hollow body, a combination of carbon fiber and epoxy resin or vinyl ester resin is preferable from the viewpoint of weight reduction and impact resistance, and using BMO is preferable from the viewpoint of cost and operability. More preferably b0 To remove the core after molding, use water or alkaline water, preferably 3
Using hot water of 0 to 90℃ or alkaline hot water is
This is preferable in that the core is quickly disintegrated and removed.
砂からなる中子は成形を行うと、砂を除去した後、複合
材料からなる中空体の内層に若干砂が付着するため、予
めパラフィンやポリエチレン樹脂等各種樹脂をコーティ
ングしたり、セロファンやポリエチレンフィルム等各種
フィルムで中子を包み成形するのは、砂の付着を防ぐだ
めに好ましいことである。When a core made of sand is molded, some sand adheres to the inner layer of the hollow body made of composite material after the sand is removed. It is preferable to wrap the core in various films such as the following to prevent sand from adhering to it.
以下実施例により本発明を具体的に説明する。 The present invention will be specifically explained below using Examples.
実施例１
ゴルフクラブヘッドの成形に本発明を適用した例を示す
。Example 1 An example in which the present invention is applied to molding a golf club head is shown.
フラタリー硅砂９７重量部、粘結剤（保土谷アシュラン
ド■製、ケムレッ６３０／６０００）３重量部を混練し
、ゴルフクラブヘッドよりフェイス面から８麿、その他
の面を２５〜３＋ｗ小さくした固形物をつくり、これを
中子とした。A solid material made by kneading 97 parts by weight of Flattery silica sand and 3 parts by weight of a binder (manufactured by Hodogaya Ashland ■, Kemre 630/6000), which is 8 mm smaller from the face side than the golf club head and 25~3+w smaller on the other surfaces. I made this and used it as a core.
第１図に示すように成形型中に該中子を置き、エポキシ
樹脂と平均１２ｍの炭素繊維からのＢＭＯをその外周に
配置して加熱、加圧成形を行った。As shown in FIG. 1, the core was placed in a mold, epoxy resin and BMO made from carbon fibers having an average length of 12 m were placed around its outer periphery, and heat and pressure molding was performed.
脱型後ヘツド下部の０ＦＲＰ層を約２ｃｆｎＸ３ｍくり
ぬき、５０ＬのＩ ＮＮａＯＨ水溶液中に浸漬し、中子
の砂を崩壊させ抜取り中空のＯＩＦＲＰ製ゴルフクラブ
ヘッドトシタ。After demolding, the 0FRP layer at the bottom of the head was hollowed out by approximately 2 cfn x 3 m, and immersed in 50 L of INNaOH aqueous solution to break up the sand in the core and extracted to obtain a hollow OIFRP golf club head.
中子として使用した砂は耐熱性、耐圧性如優れるため成
形圧力を充分かけることができ、充填不良や内部クラッ
クは皆無であった。The sand used as the core has excellent heat resistance and pressure resistance, so sufficient molding pressure could be applied, and there were no filling defects or internal cracks.
得られたヘッドをゴルフクラブとして使用したところ打
球の飛距離、方向性共に良好でありトラブルの発生は全
くなかった。When the obtained head was used as a golf club, both the flight distance and directionality of the ball were good, and no troubles occurred.
比較として上記の中子なしで実施例１と同様にして中空
成形体をつくろうとしたが、加熱・加圧成形時歪を発生
してゴルフクラブヘッドとすることが不可能であった。For comparison, an attempt was made to make a hollow molded article in the same manner as in Example 1 without the above-mentioned core, but distortion occurred during heating and pressure molding, making it impossible to make a golf club head.
本発明によると寸法精度が向上し、複雑な形状の中空体
の成形が可能となり、又高圧の加圧成形が可能となる点
よね、製品性能が大巾に向上！−１
特にゴルフクラブの大きなサイズのヘッドや野球用バラ
トを成形するのに優れた適性を
有する。According to the present invention, dimensional accuracy is improved, hollow bodies with complex shapes can be molded, and high pressure molding is possible, and product performance is greatly improved! -1 It has excellent suitability especially for molding large heads of golf clubs and baseball bats.
第１図は本発明を実施するのに好適な成形手順を示す概
念図である。FIG. 1 is a conceptual diagram showing a molding procedure suitable for carrying out the present invention.
Claims (1)
を粘結剤で固めた固形物からなる中子の周囲を熱硬化性
複合材料で被覆して加熱硬化成形後、該中子を水又はア
ルカリ性水により除去することを特徴とする中空体の成
形方法。When molding a hollow body using a thermosetting composite material, the periphery of a core made of solid sand hardened with a binder is coated with the thermosetting composite material, and after heat curing molding, the core is A method for forming a hollow body, characterized in that removal is performed with water or alkaline water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27111489A JPH03132313A (en) | 1989-10-18 | 1989-10-18 | Method of molding hollow body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27111489A JPH03132313A (en) | 1989-10-18 | 1989-10-18 | Method of molding hollow body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03132313A true JPH03132313A (en) | 1991-06-05 |
Family
ID=17495530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27111489A Pending JPH03132313A (en) | 1989-10-18 | 1989-10-18 | Method of molding hollow body |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03132313A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000001520A1 (en) * | 1998-07-03 | 2000-01-13 | Bonus Energy A/S | Method for producing closed composite structures and moulding apparatus to be used by the method |
| JP2010528896A (en) * | 2007-06-05 | 2010-08-26 | バイエリッシェ モートーレン ウエルケ アクチエンゲゼルシャフト | Method for manufacturing hollow structural parts made of fiber reinforced plastic |
| US8562238B2 (en) | 2008-12-03 | 2013-10-22 | Honda Motor Co., Ltd. | Pipe handle holding mechanism |
-
1989
- 1989-10-18 JP JP27111489A patent/JPH03132313A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000001520A1 (en) * | 1998-07-03 | 2000-01-13 | Bonus Energy A/S | Method for producing closed composite structures and moulding apparatus to be used by the method |
| JP2010528896A (en) * | 2007-06-05 | 2010-08-26 | バイエリッシェ モートーレン ウエルケ アクチエンゲゼルシャフト | Method for manufacturing hollow structural parts made of fiber reinforced plastic |
| US8562238B2 (en) | 2008-12-03 | 2013-10-22 | Honda Motor Co., Ltd. | Pipe handle holding mechanism |
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