JPS6029613B2 - Molding method for fiber-reinforced thermosetting resin - Google Patents
Molding method for fiber-reinforced thermosetting resinInfo
- Publication number
- JPS6029613B2 JPS6029613B2 JP52064901A JP6490177A JPS6029613B2 JP S6029613 B2 JPS6029613 B2 JP S6029613B2 JP 52064901 A JP52064901 A JP 52064901A JP 6490177 A JP6490177 A JP 6490177A JP S6029613 B2 JPS6029613 B2 JP S6029613B2
- Authority
- JP
- Japan
- Prior art keywords
- thermosetting resin
- molding
- mold
- fiber
- preform
- 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.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
- B29C43/14—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles in several steps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
- B29C43/021—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles characterised by the shape of the surface
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
- B29C43/14—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles in several steps
- B29C2043/141—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles in several steps for making single layer articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/36—Moulds for making articles of definite length, i.e. discrete articles
- B29C43/361—Moulds for making articles of definite length, i.e. discrete articles with pressing members independently movable of the parts for opening or closing the mould, e.g. movable pistons
- B29C2043/3615—Forming elements, e.g. mandrels or rams or stampers or pistons or plungers or punching devices
- B29C2043/3621—Forming elements, e.g. mandrels or rams or stampers or pistons or plungers or punching devices a plurality of individual elements acting on the material in the same or diferent directions, e.g. making tubular T-joints, profiles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
- B29K2105/08—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns
- B29K2105/0854—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns in the form of a non-woven mat
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Moulding By Coating Moulds (AREA)
Description
【発明の詳細な説明】
本発明は複雑な形状を有する繊維強化熱硬化性樹脂（Ｆ
ＲＰ）の成形方法に関するものであり、特に予備成形を
行った未硬化熱硬化性樹脂を合浸した強化繊維よりなる
成形体の成形方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention is a fiber-reinforced thermosetting resin (F) having a complex shape.
The present invention relates to a method for molding RP), and more particularly to a method for molding a molded body made of reinforcing fibers in which preformed uncured thermosetting resin is mixed.
プリプレグと呼ばれる成形材料は、未硬化熱硬化性樹脂
を含浸した強化繊維よりなる成形材料である。A molding material called prepreg is a molding material made of reinforcing fibers impregnated with an uncured thermosetting resin.
たとえば、不飽和ポリエステル樹脂を用いる場合は則４
Ｃと呼ばれるシート状の成形材料が得られ、ェポキシ樹
脂の場合は一般にプリプレグと呼ばれるＢ−ステージ化
したェポキシ樹脂と強化繊維からなるシート状の成形材
料が得られる。これらの表面非粘着性のシート状成形材
料はマッチドダィなどで圧縮成形して成形品とする。し
かしながら、シート状の成形材料は、あらゆる形状に成
形できるわけではない。たとえば、鋭い立ち上がり部を
有する成形物や肉厚変化の著るしい成形物などは成形が
不可能である。また、通常のマッチドダィではアンダー
カットの成形は不可能である。本発明者は、上記複雑な
形状を有する成形物を成形する方法を検討した結果、従
来の上下型を使用した圧縮成形方法の代りに、３あるい
はそれ以上に分割した型を用い、上下方向ばかりでなく
、左右あるいはそれ以上の方向から圧縮して成形する方
法を見い出した。For example, when using unsaturated polyester resin, Rule 4
A sheet-shaped molding material called C is obtained, and in the case of epoxy resin, a sheet-shaped molding material made of B-staged epoxy resin, generally called prepreg, and reinforcing fibers is obtained. These sheet-like molding materials with non-adhesive surfaces are compressed into molded products using a matched die or the like. However, sheet-like molding materials cannot be molded into all shapes. For example, it is impossible to mold a molded product that has a sharp rising portion or a molded product that has a significant change in wall thickness. Furthermore, it is impossible to form undercuts using a normal matched die. As a result of studying a method for molding a molded product having the above-mentioned complex shape, the inventor of the present invention found that, instead of the conventional compression molding method using upper and lower molds, a mold divided into three or more parts was used to mold the molded product, and the molded product was molded in both the upper and lower directions. Instead, they found a way to compress and mold from the left, right, or even more directions.
しかしながら、この方法では、通常のシート状成形材料
を用いて成形することができないことがわかった。即ち
、型内でシート状の成形材料を圧縮して成形材料を型内
に充満させるとき、狭い空隙に成形材料を押し込むこと
は困難であり、また成形材料を流す距離にも制限がある
。たとえば、第１図に示した断面日型の円盤状成形物を
シート状成形材料で成形しようとしても、端部立ち上が
り部に樹脂と繊維とを充満させることは困難である。さ
らに本発明者は検討を重ねた結果、成形材料を成形前に
予備成形を行った複数の成形材料（以下予備成形体とい
う）を組み合せて最終成形物に近似した形状として分割
型中に配置し、分割型中で圧縮成形する方法を見し、出
した。However, it has been found that this method cannot be used for molding using ordinary sheet-like molding materials. That is, when compressing a sheet of molding material in a mold to fill the molding material, it is difficult to force the molding material into a narrow gap, and there is also a limit to the distance over which the molding material can flow. For example, even if an attempt is made to mold a disk-shaped molded article with a date-shaped cross section as shown in FIG. 1 using a sheet-shaped molding material, it is difficult to fill the rising end portions with resin and fibers. Furthermore, as a result of repeated studies, the inventor of the present invention combined a plurality of molding materials that were preformed before molding (hereinafter referred to as preforms) and placed them in a split mold in a shape similar to the final molded product. , discovered and published a method of compression molding in a split mold.
この場合、予備成形体は形崩れを起してはならないので
、自日支持性を有するＢ−ステージ化したものでなくて
はならない。この予備成形体は、あらかじめ必要な形状
に成形した複強繊維に未硬化熱硬化性樹脂を合浸し、Ｂ
−ステージ化して得られる。また、別法として通常のシ
ート状成形材料あるいはその他の未硬化熱硬化性樹脂舎
浸強化繊維を予備成形型内で樹脂の硬化する温度以下の
温度で予備成形し、同時にあるいはその後樹脂をＢ−ス
テージ化する方法がある。即ち、本発明は、熱硬化性樹
脂がＢ−ステージ化されている熱硬化性樹脂舎浸強化繊
維よりなる複数の予備成形体を組合せて最終成形物に近
似した形状として分割型中に配置し、該分割型中で圧縮
成形することを特徴とする繊維強化熱硬化性樹脂の成形
方法である。In this case, since the preform must not lose its shape, it must be B-staged and capable of supporting itself. This pre-formed body is made by co-dipping uncured thermosetting resin into multi-reinforced fibers that have been pre-formed into the required shape.
- Obtained by staging. Alternatively, an ordinary sheet-like molding material or other uncured thermosetting resin reinforcing fibers may be preformed in a preforming mold at a temperature below the curing temperature of the resin, and at the same time or thereafter the resin may be There is a way to stage it. That is, the present invention combines a plurality of preforms made of thermosetting resin reinforced fibers in which the thermosetting resin has been B-staged and placing them in a split mold in a shape similar to the final molded product. , a method for molding a fiber-reinforced thermosetting resin, characterized by compression molding in the split mold.
本発明の成形方法をさらに詳しく説明する。The molding method of the present invention will be explained in more detail.
まず、成形材料の製造方法の１つは、プリフオームを用
いる方法である。従来、ＦＲＰのマッチドダィ成形にお
いて、ガラス繊維のチョップドストランド、あるいはコ
ンテイニユアスストランドをブリフオーマ−で成形し、
ガラス繊維プリフオームが製造されていた。この方法を
使用してガラス繊維などの強化繊維を必要な形状に成形
したプリフオームに、未硬化熱硬化性樹脂を含浸し、該
樹脂をＢーステージ化して本発明における予備成形体を
得る。この樋脂含浸およびＢーステージ化の際、予備成
形型を用いることが好ましい。即ち、プリフオームに熱
硬化性樹脂を合浸した後予備成形型に入れ、またはプリ
フオームを予備型上で熱硬化性樹脂を合浸し、あるいは
予備成形型に入れ熱硬化性樹脂を注入舎浸し、予備成形
型上あるし、はその中で樹脂をＢーステージ化して取り
出す方法が好ましい。次の方法は、予備成形型上でプリ
フオームを作る方法である。First, one method of manufacturing a molding material is a method using a preform. Conventionally, in matched die molding of FRP, chopped strands or continuous strands of glass fiber are molded with a brief former.
Glass fiber preforms were manufactured. A preform formed by molding reinforcing fibers such as glass fiber into a required shape using this method is impregnated with an uncured thermosetting resin, and the resin is B-staged to obtain a preform according to the present invention. During this gutter fat impregnation and B-staging, it is preferable to use a preforming mold. That is, the preform is mixed with a thermosetting resin and then placed in a preforming mold, or the preform is mixed with a thermosetting resin on the preliminary mold, or the preform is placed in a preforming mold and the thermosetting resin is injected into the preform. It is preferable to B-stage the resin in the mold and take it out. The next method is to make a preform on a preform mold.
即ち、強化繊維のマット、クロス、ロービング等を予備
成形型上で積層し、同時にあるいはその後熱硬化性樹脂
を含浸し、Ｂ−ステージ化する方法である。この方法は
、プリフオームを予め作る必要がなく、また各種の強化
繊維を併用できる特徴を有している。前記方法と同様に
、この方法は、予備成形型内で樹脂を含浸することがで
き、またＢーステージ化することもできる。第三の方法
は、従来の方法と同機の方法で得られた未硬化熱硬化性
樹脂含浸成形材料を予備成形型で成形しＢ−ステージ化
する方法である。That is, this is a method in which mats, cloths, rovings, etc. of reinforcing fibers are laminated on a preform, and simultaneously or afterwards impregnated with a thermosetting resin to form a B-stage. This method has the feature that there is no need to make a preform in advance and that various reinforcing fibers can be used in combination. Similar to the previous method, this method can be impregnated with resin in the preform and can also be B-staged. The third method is to mold the uncured thermosetting resin-impregnated molding material obtained by the conventional method and the same method using a preform mold to B-stage it.
即ち、シート状のあるいは不定形の成形材料を予備成形
型内で軽く圧縮し、必要な形状に成形し、それと同時に
、あるいは予備成形型から取り出した後、樹脂をＢ−ス
テージ化する。このとき、シート状の成形材料はその表
面が非粘着性であることが好ましく、またＢ−ステージ
化は予備成形型内で行うことが好ましい。第２図および
第３図に予備成形材料の製造方法の１例を示す。That is, a sheet-like or irregularly shaped molding material is lightly compressed in a preform to form a desired shape, and at the same time or after being removed from the preform, the resin is B-staged. At this time, the surface of the sheet-shaped molding material is preferably non-adhesive, and B-staging is preferably performed within a preforming mold. FIGS. 2 and 3 show an example of a method for producing a preformed material.
第１図に示した断面を有する円盤状成形体を作るために
、まず水平に２分割された予備成形体を製造する。まず
、第２図に示したような予備成形用上型１上に、ガラス
繊維マットなどの強化繊維２またはプリフオームを置き
、これに液状熱硬化性樹脂３を含浸する。含浸終了後第
３図に示したように、樹脂含浸強化繊維４上に予備成形
用上型５を置きこの状態で加熱し、樹脂をＢ−ステージ
化する。これにより、Ｂ−ステージ化された予備成形体
が得られる。この予備成形体を２枚対向させて、第１図
に示した成形物を成形する方法を第４図に示す。In order to produce a disk-shaped molded body having the cross section shown in FIG. 1, a preformed body is first divided horizontally into two parts. First, a reinforcing fiber 2 such as a glass fiber mat or a preform is placed on a preforming upper mold 1 as shown in FIG. 2, and is impregnated with a liquid thermosetting resin 3. After the impregnation, as shown in FIG. 3, a preforming upper mold 5 is placed on the resin-impregnated reinforcing fiber 4 and heated in this state to B-stage the resin. As a result, a B-staged preform is obtained. FIG. 4 shows a method for forming the molded product shown in FIG. 1 by placing two of these preforms facing each other.
この成形を行うための型は、上型６、下型７、側型Ａ８
、側型Ｂ９および型押えＡＩ０、型押えＢＩＩよりなる
。予備成形物を下型７上に置き、半弧状の側型Ａ８およ
び側型Ｂ９を俄装して型押えＡＩＯおよびＢＩＩで側型
を固定し、次いで上型６で圧縮し、熱硬化性樹脂を硬化
させる。第１図に示したような成形物は従来の方法では
成形できない。The molds for this molding are an upper mold 6, a lower mold 7, and a side mold A8.
, a side die B9, a presser AI0, and a presser BII. The preform is placed on the lower mold 7, semi-arc shaped side molds A8 and B9 are attached, and the side molds are fixed with mold pressers AIO and BII, and then compressed with the upper mold 6, and the thermosetting resin is harden. A molded article such as that shown in FIG. 1 cannot be molded by conventional methods.
即ち、まず、上下２分割された成形型では、図示した成
形物端部にあるアンダーカット部を成形できない。また
、従来のシート状成形材料を用い、第４図で示したよう
な型で成形することも不可能である。通常シート状成形
材料を成形する場合、成形物に成形材料不足部を生じさ
せないために型面積よりも広いシート状成形材料を用い
、成形時に型で過剰部を切り落している。しかし、第４
図に示す型では切り落すことができないので、正確に過
不足のない量の成形材料を使用しなければならない。し
かしながら、複雑な形状の成形物では正確に過不足のな
い量の成形材料を用い、かつ成形時に型の隅々まで材料
を行き渡らせることは不可能であり、通常材料の不足部
分や樹脂と強化繊維との存在量のバランスが崩れる（即
ち、強化繊維不足部が生じ易い）場合が多い。これを解
決するためには予備成形体が必要であり、単に２枚のシ
ート状成形材料では第４図に示した成形型で成形を行う
ことはできない。以上の説明から明らかなように、本発
明の成形方法は、複雑な形状の成形物の成形に適してお
り、特にアンダーカット部を有する成形物の圧縮成形に
適している。勿論、アンダーカット部を有しない成形物
の場合でも、鋭い立ち上がり部や箸るしい肉厚変化など
を有する従来上下２分割のマッチトダィで成形できなか
った成形物や成形が困難であった成形物の成形には本発
明が適用できる。また、本発明における予備成形体とは
肉厚変化のほとんどないシート状の成形材料は除かれ、
またブリミックスなどの不定形成形材料も除かれるもの
である。本発明における強化繊維としては、ガラス繊維
、炭素繊維、セラミック繊維、石綿、金属繊維、その他
の無機質繊維、合成繊維、天然動植物繊維、その他の有
機繊維などあらゆる繊維状強化材やそれらの組み合せを
用いることができる。That is, first, with a mold that is divided into upper and lower halves, it is not possible to form the undercut portion at the end of the molded product shown in the figure. Furthermore, it is also impossible to mold using a mold as shown in FIG. 4 using a conventional sheet-shaped molding material. Normally, when molding a sheet-shaped molding material, a sheet-shaped molding material that is wider than the mold area is used to prevent a molded product from having a shortage of molding material, and the excess part is cut off by the mold during molding. However, the fourth
Since the mold shown in the figure cannot be cut off, it is necessary to use exactly the right amount of molding material. However, for molded products with complex shapes, it is impossible to use exactly the right amount of molding material and spread the material to every corner of the mold during molding. In many cases, the balance between the amount of reinforcing fibers and fibers is disrupted (that is, areas lacking reinforcing fibers tend to occur). In order to solve this problem, a preform is required, and simply two sheets of molding material cannot be used in the mold shown in FIG. 4 to perform molding. As is clear from the above description, the molding method of the present invention is suitable for molding a molded product having a complex shape, and is particularly suitable for compression molding a molded product having an undercut portion. Of course, even in the case of molded products that do not have undercuts, there are molded products that have sharp rising parts or noticeable changes in wall thickness that could not be molded using a conventional matched die with upper and lower halves, or molded products that were difficult to mold. The present invention can be applied to molding. In addition, the preform in the present invention does not include a sheet-like molding material with almost no change in wall thickness.
It also excludes irregularly shaped materials such as Brimix. The reinforcing fibers used in the present invention include any fibrous reinforcing materials such as glass fibers, carbon fibers, ceramic fibers, asbestos, metal fibers, other inorganic fibers, synthetic fibers, natural animal and plant fibers, and other organic fibers, and combinations thereof. be able to.
特に好ましい強化繊維は、ガラス繊維、炭素繊維、石綿
、高張力合成繊維である。これらの強化繊維はあらゆる
形態で使用でき、たとえば、ガラス繊維を例にとれば、
ロービング、チョップドストランド、チョップドストラ
ンドマツト、コンテイニユアスストランドマット、サー
フユーシングマツト、クロス、ロービングクロスあるい
はそれらの組み合せなどである。熱硬化性樹脂としては
、ェポキシ樹脂、不飽和ポリエステル樹脂、ビニルェス
テル樹脂、フェノール樹脂、アリル樹脂、シリコン樹脂
、ポリィミド樹脂あるいはその他の架橋硬化性樹脂など
の熱硬化性樹脂を用いることができる。特に好ましくは
、ェポキシ樹脂、不飽和ポリエステル樹脂、フェノール
樹脂および耐熱性のいわゆるエンジニアリングプラスチ
ックである。これらは、液状であるいは溶剤に溶解する
等の手段で強化繊維に含浸する。この熱硬化性樹脂をＢ
−ステージ化する方法は通常加熱が用いられる。その他
不飽和ポリエステル樹脂やビニルヱステル樹脂などでは
アルカリ士類金属化合物などの架橋性の増粘剤を用いる
こともできる。また、予備成形する前の成形材料として
は、プリプレグ、ＳＭＣなどのシート状成形材料、プリ
ミックス、ＢＭＣなどが不定形成形材料を用いることが
できる。Particularly preferred reinforcing fibers are glass fibers, carbon fibers, asbestos, and high-tensile synthetic fibers. These reinforcing fibers can be used in any form, for example, glass fibers.
These include roving, chopped strand, chopped strand mat, continuous strand mat, surfing mat, cloth, roving cloth, or a combination thereof. As the thermosetting resin, thermosetting resins such as epoxy resin, unsaturated polyester resin, vinylester resin, phenol resin, allyl resin, silicone resin, polyimide resin, or other crosslinked curable resin can be used. Particularly preferred are epoxy resins, unsaturated polyester resins, phenolic resins, and heat-resistant so-called engineering plastics. These are impregnated into the reinforcing fibers in liquid form or by dissolving them in a solvent. This thermosetting resin is
- Heating is usually used as a staging method. For unsaturated polyester resins, vinyl ester resins, etc., crosslinkable thickeners such as alkali metal compounds can also be used. Further, as the molding material before preforming, irregularly moldable molding materials such as prepreg, sheet molding material such as SMC, premix, BMC, etc. can be used.
第１図は本発明により成形される断面日形の円盤状成形
物の断面を示したものである。
第２図および第３図は成形材料の成形方法を示したもの
であり、予備成形型１上の強化繊維２に液状熱硬化性樹
脂３を添加し、上型５で加圧し、予備成形体４を成形す
る。第４図は成形方法を示すものであり、第３図で成形
された予備成形体を２枚使用し、３分割の型６，７，８
を用いて圧縮成形が行なわれる。多ノ晒．
多２図．
茅う四
秦４図FIG. 1 shows the cross section of a disk-shaped molded product having a date-shaped cross section, which is molded according to the present invention. Figures 2 and 3 show a method for molding the molding material, in which liquid thermosetting resin 3 is added to reinforcing fibers 2 on a preform mold 1, pressure is applied with an upper mold 5, and a preform is formed. Mold 4. Figure 4 shows the molding method, in which two preforms molded in Figure 3 are used, and molds divided into three parts 6, 7, and 8 are used.
Compression molding is performed using Tano exposed. Many 2 figures. 4 pictures of the Four Qin Dynasties
Claims (1)
樹脂含浸強化繊維よりなる複数の予備成形体を組合せて
最終成形物に近似した形状として分割型中に配置し、該
分割型中で圧縮成形することを特徴とする繊維強化熱硬
化性樹脂の成形方法。 ２ 予備成形体が強化繊維ブリフオームに熱硬化性樹脂
を含浸して得られるものであることを特徴とする特許請
求の範囲１の繊維強化熱硬化性樹脂の成形方法。 ３ 予備成形体が予備成形型上あるいは予備成形中の強
化繊維に熱硬化性樹脂を含浸して得られるものであるこ
とを特徴とする特許請求の範囲１の繊維強化熱硬化性樹
脂の成形方法。 ４ 予備成形体が、シート状あるいは不定形の未硬化熱
硬化性樹脂含浸強化繊維を予備成形型で成形して得られ
るものであることを特徴とする特許請求の範囲１の繊維
強化熱硬化性樹脂の成形方法。 ５ 分割型が３あるいはそれ以上に分割された型である
ことを特徴とする特許請求の範囲１の繊維強化熱硬化性
樹脂の成形方法。 ６ 成形物がアンダーカツト部を有する成形物であるこ
とを特徴とする特許請求の範囲１の繊維強化熱硬化性樹
脂の成形方法。[Claims] 1. A plurality of preformed bodies made of thermosetting resin-impregnated reinforcing fibers in which the thermosetting resin has been B-staged are combined and arranged in a split mold in a shape similar to the final molded product. A method for molding a fiber-reinforced thermosetting resin, comprising compression molding in the split mold. 2. The method for molding a fiber-reinforced thermosetting resin according to claim 1, wherein the preform is obtained by impregnating a reinforcing fiber brifform with a thermosetting resin. 3. The method for molding a fiber-reinforced thermosetting resin according to claim 1, wherein the preform is obtained by impregnating reinforcing fibers on or during preforming with a thermosetting resin. . 4. The fiber-reinforced thermosetting material according to claim 1, wherein the preform is obtained by molding sheet-like or amorphous uncured thermosetting resin-impregnated reinforcing fibers in a preforming mold. How to mold resin. 5. The method for molding a fiber-reinforced thermosetting resin according to claim 1, wherein the divided mold is a mold divided into three or more parts. 6. The method for molding a fiber-reinforced thermosetting resin according to claim 1, wherein the molded product has an undercut portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP52064901A JPS6029613B2 (en) | 1977-06-03 | 1977-06-03 | Molding method for fiber-reinforced thermosetting resin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP52064901A JPS6029613B2 (en) | 1977-06-03 | 1977-06-03 | Molding method for fiber-reinforced thermosetting resin |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5476A JPS5476A (en) | 1979-01-05 |
| JPS6029613B2 true JPS6029613B2 (en) | 1985-07-11 |
Family
ID=13271425
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP52064901A Expired JPS6029613B2 (en) | 1977-06-03 | 1977-06-03 | Molding method for fiber-reinforced thermosetting resin |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6029613B2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6026731U (en) * | 1983-07-29 | 1985-02-23 | 東京特殊電線株式会社 | Enamelled wire manufacturing equipment |
| US4994225A (en) * | 1988-06-28 | 1991-02-19 | Uniroyal Plastics Company, Inc. | Production of passive restraint device |
| US5076975A (en) * | 1988-06-28 | 1991-12-31 | Uniroyal Plastics Company, Inc. | Production of radiation cured elastomer coated passive restraint device |
| US5046759A (en) * | 1989-04-07 | 1991-09-10 | Uniroyal Plastics Co., Inc. | Braided fabric structure for seamless fabric confinements |
| JP6891659B2 (en) | 2017-06-21 | 2021-06-18 | 株式会社ジェイテクト | Differential device |
-
1977
- 1977-06-03 JP JP52064901A patent/JPS6029613B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5476A (en) | 1979-01-05 |
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