JPS60212331A - Mandrel - Google Patents
MandrelInfo
- Publication number
- JPS60212331A JPS60212331A JP59067466A JP6746684A JPS60212331A JP S60212331 A JPS60212331 A JP S60212331A JP 59067466 A JP59067466 A JP 59067466A JP 6746684 A JP6746684 A JP 6746684A JP S60212331 A JPS60212331 A JP S60212331A
- Authority
- JP
- Japan
- Prior art keywords
- mandrel
- alloy
- thermal expansion
- present
- thickness
- 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
- 239000000919 ceramic Substances 0.000 claims abstract description 5
- 239000011248 coating agent Substances 0.000 claims abstract description 4
- 238000000576 coating method Methods 0.000 claims abstract description 4
- 238000000465 moulding Methods 0.000 claims abstract description 4
- 229920002430 Fibre-reinforced plastic Polymers 0.000 claims abstract description 3
- 239000011151 fibre-reinforced plastic Substances 0.000 claims abstract description 3
- 229910000714 At alloy Inorganic materials 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 abstract description 5
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 abstract description 3
- 239000000956 alloy Substances 0.000 abstract description 3
- 230000004913 activation Effects 0.000 abstract 1
- 238000007733 ion plating Methods 0.000 abstract 1
- 238000010137 moulding (plastic) Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 9
- 239000000835 fiber Substances 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- 230000008602 contraction Effects 0.000 description 4
- 239000010409 thin film Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000011247 coating layer Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 241000282326 Felis catus Species 0.000 description 1
- 102100040287 GTP cyclohydrolase 1 feedback regulatory protein Human genes 0.000 description 1
- 101710185324 GTP cyclohydrolase 1 feedback regulatory protein Proteins 0.000 description 1
- 244000089486 Phragmites australis subsp australis Species 0.000 description 1
- 235000014676 Phragmites communis Nutrition 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000004918 carbon fiber reinforced polymer Substances 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 238000009730 filament winding Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000002990 reinforced plastic Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 238000001771 vacuum deposition Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
- Moulding By Coating Moulds (AREA)
Abstract
Description
【発明の詳細な説明】
（本発明の技術分野）
本発明は０ＦＲＰ（Ｃａｒｂｏｎ Ｆｉｂｅｒ Ｒｅ１
ｎｆＯｒｃｅｄＰｌａｓｔｉｃ （炭素繊維強化プラス
チック））あるいはＧＦＲＰ（Ｇｌａｓｓ Ｆｉｂｅｒ
Ｒｅ１ｎｆｏｒｃｅｄ Ｐｌａｓｔｉｃ（ガラス繊維
強化プラスチック））（以下、これらの、あるいは他の
繊維強化プラスチックをＦＲＰと記す）の円筒成形体等
の成形に用いられるマンドレルに関する。DETAILED DESCRIPTION OF THE INVENTION (Technical field of the present invention) The present invention relates to 0FRP (Carbon Fiber Re1
nfOrcedPlastic (carbon fiber reinforced plastic) or GFRP (Glass Fiber
The present invention relates to a mandrel used for molding cylindrical molded bodies of reinforced plastic (glass fiber reinforced plastic) (hereinafter, these and other fiber reinforced plastics are referred to as FRP).
（従来技術）
上記のＦＲＰ円筒成形体は、一般に、第１図に示すよう
に、熱硬化性樹脂を含浸させながらマンドレル１上に繊
ｆａ（あるいは繊維束）を巻いていくフィラメントワイ
ンディング法〔第１図（Ａ）〕、予め樹脂を含浸させ半
硬化状態に処理したグレプリグテープやシートを巻くテ
ープワインディング法〔第１図（Ｃ） ） 、シートロ
ーリング法［第１図（Ｂ）］等があシ、いずれの方法も
マンドレル１上に巻きつけた後、オートクレーブ等で５
ｋｌｉ／ｃａｔ”程度加圧しながら加熱硬化させる。(Prior Art) The above-mentioned FRP cylindrical molded body is generally produced using the filament winding method, in which fibers (or fiber bundles) are wound on a mandrel 1 while being impregnated with a thermosetting resin, as shown in FIG. 1 (A)], the tape winding method (Fig. 1 (C)), which wraps Greprig tape or sheet that has been pre-impregnated with resin and treated to a semi-cured state, and the sheet rolling method [Fig. 1 (B)]. In either method, wrap the reeds on a mandrel 1, then heat them in an autoclave etc.
It is heated and cured while applying pressure to the extent of "kli/cat".
この時、マンドレルの熱膨張によシ、フィラメントある
いはテープ、シートは、張力を受けた状態で固化するた
め、たるみやゆるみを防ぐことができる。オートクレー
ブでの硬化処理が終了した抜取シ出してやると、マンド
レルのみが熱収縮し、ＦＲＰとマンドレルに寸法差が生
じるため、容易にマンドレルを引き出すことができる。At this time, the fiber, filament, tape, or sheet solidifies under tension due to the thermal expansion of the mandrel, thereby preventing sagging or loosening. When the curing process in the autoclave is completed and the mandrel is taken out, only the mandrel undergoes heat shrinkage and a dimensional difference occurs between the FRP and the mandrel, so the mandrel can be easily taken out.
このマンドレルに必要な特性は主として以下の４点であ
る。The following four characteristics are mainly required for this mandrel.
（１） たわみを生じないこと。(1) No deflection.
（２） 表面がフィラメント、テープ等で傷つけられな
いこと（表面が荒れると、テープ、フィラメントの損傷
を招く。）
（３） 熱膨張率が大きいこと。(2) The surface must not be damaged by filaments, tapes, etc. (Roughing of the surface may cause damage to the tape or filament.) (3) The coefficient of thermal expansion must be large.
（４）＠量で取ル扱いに便利であること。(4) Convenient to handle in quantity.
しかし、従来のマンドレル用材料には、量産品用として
炭素鋼、低合金鋼が用いられ、小物や特殊形状のものに
Ａｔが用いられてきたが、鋼糸の材料は重量が大きく、
取シ扱いに不便であり、熱膨張係数が約１０ Ｘ １０
−’／℃程度であるため、硬化後の脱芯も難しい。Ａｔ
は熱膨張係数が約２０ Ｘ １０−’／℃と鋼の２倍で
あシ、また軽量で取り扱い性も良好であるが、表面が柔
らかいため、フィラメント等によって傷つき易いという
欠点を有している。However, conventional materials for mandrels include carbon steel and low-alloy steel for mass-produced products, and At for small items and special shapes, but the material for steel thread is heavy and
It is inconvenient to handle, and the coefficient of thermal expansion is approximately 10 x 10.
-'/°C, it is also difficult to remove the core after curing. At
The coefficient of thermal expansion is approximately 20 x 10-'/°C, twice that of steel, and it is lightweight and easy to handle, but its soft surface makes it easily damaged by filaments, etc. .
（本発明の目的）
本発明の目的は、現在、ＰＲＰ成形用のマンドレルが本
来必要とする特性を充分満足していないことから、これ
を改良し、軽量で、熱膨張が大きく、シかも表面の硬い
マンドレル材料を得ることにある。(Objective of the present invention) The purpose of the present invention is to improve the present mandrels for PRP molding, since they do not fully satisfy the originally required characteristics. The goal is to obtain a hard mandrel material.
（本発明の構成）
本発明は、ａ又はＡｔ合金をマンドレル用母材として用
い、この表面に硬度の高い薄膜を形成して、マンドレル
の要求特性を満足させようとするもので、その特徴とす
るところは、ＡＬ又は１１合金製マンドレルの表面に、
例えばイオンブレーティング、真空蒸着等の方法によシ
、例えばＴｉｃ、 ＴｉＮ、 ８１３Ｎ４． ＢＮ、
ＳｉＣ，ＺｒＯ２，Ａｚ２ｏ３等のセラミックス薄膜を
３〜２０μの厚さが形成することにある。この方法によ
れば、ａの有する軽量性、高い熱膨張といった特性をそ
のまま活用し、しかも表面が硬く、傷つき難いマンドレ
ルが得られる。なお、例えば、イオンブレーティング法
で得られる薄膜は、たかだか１０μであｐ 、ｈｔの熱
膨張、熱収縮に追随し、これを妨げない。(Structure of the present invention) The present invention uses a or At alloy as a base material for the mandrel, and forms a thin film with high hardness on the surface thereof to satisfy the required characteristics of the mandrel. The place to do this is on the surface of the AL or 11 alloy mandrel.
For example, by methods such as ion blasting and vacuum deposition, for example, Tic, TiN, 813N4. BN,
The purpose is to form a ceramic thin film of SiC, ZrO2, Az2o3, etc. to a thickness of 3 to 20 microns. According to this method, a mandrel can be obtained which utilizes the properties of a, such as light weight and high thermal expansion, and which has a hard surface and is hard to be damaged. Note that, for example, a thin film obtained by the ion blating method follows the thermal expansion and contraction of p and ht with a thickness of at most 10 μm, and does not interfere with the thermal expansion and contraction of p and h.
（本発明の具体的構成）
第２図（勾とそのα部の詳細図である第２図（Ｂ）は、
本発明になる表面処理を施したｋｌマンドレルを示す。(Specific configuration of the present invention) Figure 2 (Figure 2 (B), which is a detailed view of the slope and its α part,
1 shows a kl mandrel subjected to surface treatment according to the present invention.
図中、１１はａないしはＡＬ合金製円筒であル、この表
面を活性化処理した後、イオンブレーティング装置又は
真空蒸着装置等を用いて′コーティング層１２を３μ〜
２０μ形成する。゛Ｐ−ティング厚さは、３μ以下では
長期使用の際摩耗によって損耗する恐れがちシ、２０μ
以上ではＡｔ熱膨張、熱収縮への追随性が低下し、また
コーティングに長時間を要するため無駄である。このう
ち、望ましくは３〜１０μ程度の厚さである。コーティ
ング材料には、ＴｉＮ。In the figure, 11 is a cylinder made of a or AL alloy, and after activating the surface, a coating layer 12 of 3 μm to
Form 20μ.゛If the P-ting thickness is less than 3μ, there is a risk of wear and tear during long-term use;
The above is wasteful because the ability to follow At thermal expansion and thermal contraction deteriorates and coating takes a long time. Among these, the thickness is desirably about 3 to 10 microns. The coating material is TiN.
Ｔｉｅ、’ ８１４Ｎ４． Ｓｉｎ、 ＢＮ、 ＺｒＯ
２，Ａｔ２０Ｂ等のセラミックを用いる。Tie,' 814N4. Sin, BN, ZrO
2. Use ceramic such as At20B.
（本発明の作用及び効果）
本発明になるマンドレルを用いることにより、以下のよ
うな作用及び効果を奏し得る。(Actions and effects of the present invention) By using the mandrel of the present invention, the following actions and effects can be achieved.
（１） マンドレルの熱膨張、熱収縮が大きいため、Ｆ
’ＲＰ中の繊維に充分な張力をかけることができ、繊維
のゆる皐、たるみ゛による強度低下が防止でき、複合側
に従った理論強度に近い材料が得られると共に、樹脂の
硬化処理後の脱芯が容易で、長尺の円筒でも切断せずに
脱芯可能となる。(1) Because the mandrel has large thermal expansion and contraction, F
'It is possible to apply sufficient tension to the fibers in RP, prevent the decrease in strength due to looseness and sag of the fibers, and obtain a material close to the theoretical strength according to the composite side. Easy to de-core, even long cylinders can be de-cored without cutting.
（２） マンドレル表面のコーティング層がＨｖ１９０
０程度と非常に硬い材料であるため、繊維によって傷つ
かず、多数回使用しても表面の荒れが生じないことから
、繊維の切れを防ぐことができ、高品質のＦＲＩＩ成形
体が得られる。(2) The coating layer on the mandrel surface is Hv190
Since it is a very hard material with a hardness of about 0.0, it will not be damaged by the fibers, and the surface will not become rough even after multiple uses, so fiber breakage can be prevented and a high-quality FRII molded product can be obtained.
（３） マンドレルはＡｔないしはＡｔ合金ベースであ
るため、軽量で、取シ扱いが容易であシ、また酸化によ
る腐食も生じ難い。(3) Since the mandrel is based on At or At alloy, it is lightweight, easy to handle, and is not easily corroded by oxidation.
第１図（Ａ）、 （Ｂ）、 （Ｃ）は一般的なＦＩＥＦ
円筒成形体の成形法を示す図、第２図（Ａ）、 ＣＢ）
は本発明に係るマンドレルの一実施態様例を示す図であ
る。
復代理人 内 １） 明
復代理人 萩 原 亮 −Figure 1 (A), (B), and (C) are general FIEF
Diagrams showing the method for forming cylindrical molded bodies, Figure 2 (A), CB)
FIG. 1 is a diagram showing an embodiment of a mandrel according to the present invention. Sub-agents 1) Meifuku agent Ryo Hagiwara -
Claims (1)
厚さでコーティングしてなる繊維強化プラスチツク成形
体の成形用のマンドレル。Ceramic layer t-3~20μ on At alloy
A mandrel for molding fiber-reinforced plastic molded bodies with a thick coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59067466A JPS60212331A (en) | 1984-04-06 | 1984-04-06 | Mandrel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59067466A JPS60212331A (en) | 1984-04-06 | 1984-04-06 | Mandrel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60212331A true JPS60212331A (en) | 1985-10-24 |
Family
ID=13345756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59067466A Pending JPS60212331A (en) | 1984-04-06 | 1984-04-06 | Mandrel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60212331A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2042285A1 (en) * | 2007-09-26 | 2009-04-01 | Saab Ab | Method and tool for forming an elongate, hollow article of a fiber-reinforced composite material |
-
1984
- 1984-04-06 JP JP59067466A patent/JPS60212331A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2042285A1 (en) * | 2007-09-26 | 2009-04-01 | Saab Ab | Method and tool for forming an elongate, hollow article of a fiber-reinforced composite material |
| US8206532B2 (en) | 2007-09-26 | 2012-06-26 | Saab Ab | Method and tool for forming an elongate, hollow article of a fiber-reinforced composite material |
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