JPH0510219B2 - - Google Patents
Info
- Publication number
- JPH0510219B2 JPH0510219B2 JP59082540A JP8254084A JPH0510219B2 JP H0510219 B2 JPH0510219 B2 JP H0510219B2 JP 59082540 A JP59082540 A JP 59082540A JP 8254084 A JP8254084 A JP 8254084A JP H0510219 B2 JPH0510219 B2 JP H0510219B2
- Authority
- JP
- Japan
- Prior art keywords
- composite resin
- fibers
- resin sheet
- reinforcing fibers
- strength
- 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 - Lifetime
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B15/00—Pretreatment of the material to be shaped, not covered by groups B29B7/00 - B29B13/00
- B29B15/08—Pretreatment of the material to be shaped, not covered by groups B29B7/00 - B29B13/00 of reinforcements or fillers
-
- 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
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/42—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles
- B29C70/46—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Moulding By Coating Moulds (AREA)
- Reinforced Plastic Materials (AREA)
Description
【発明の詳細な説明】
（産業上の利用分野）
この発明は、強化繊維を含有する複合樹脂シー
ト、詳しくは成形型への沿い性が向上され、樹脂
リツチ部分の発生と、これにともなう強度の低下
とが防止される強化繊維を含有する複合樹脂シー
トに関する。Detailed Description of the Invention (Field of Industrial Application) The present invention is directed to a composite resin sheet containing reinforcing fibers, which improves conformability to a mold, prevents the occurrence of resin-rich portions, and improves the strength associated with this. The present invention relates to a composite resin sheet containing reinforcing fibers that prevents a decrease in
（従来技術）
自動車において、軽量化と成形の容易化を図る
ために、繊維強化合成樹脂が使用されている。(Prior Art) Fiber-reinforced synthetic resins are used in automobiles to reduce weight and facilitate molding.
繊維強化合成樹脂は多種知られているが、熱硬
化性樹脂と、該樹脂に強化繊維としてのガラス繊
維による連続長繊維を混入した複合樹脂は、強度
が高いので自動車における比較的強度の要求が高
い箇所に用いられている。 Many types of fiber-reinforced synthetic resins are known, but thermosetting resins and composite resins in which continuous fibers of glass fibers as reinforcing fibers are mixed into the resins have high strength, so they meet the relatively high strength requirements for automobiles. Used in high places.
上記連続長繊維が混入された複合樹脂の成形品
は、第５図に示すように、たとえば不飽和ポリエ
ステル樹脂、ビニールエステル樹脂などの熱硬化
性樹脂３０に、強化繊維としてガラス繊維からな
る連続長繊維３１が混入されたシート３２を、第
６図のように、熱プレス成形金型３３，３４を用
いた熱プレス成形法によつて所定の形状に成形さ
れる（例えば特公昭54−35232号公報参照）。 As shown in FIG. 5, the composite resin molded product in which the continuous long fibers are mixed is made of a thermosetting resin 30 such as unsaturated polyester resin or vinyl ester resin, and continuous long fibers made of glass fibers as reinforcing fibers. A sheet 32 mixed with fibers 31 is molded into a predetermined shape by a hot press molding method using hot press molds 33 and 34, as shown in FIG. (see official bulletin).
しかしながら、上記従来の連続長繊維３１が混
入された複合樹脂シート３２で、第６図のような
コーナ部３５，３６を有する成形品３７を成形す
ると、複合樹脂シート３２は所定の曲げ強さを有
するため上記コーナ部３５，３６の曲率に沿つて
複合樹脂シート３２が撓まず、成形金型３３，３
４への沿い性が悪く、しかも、型締め時に、複合
樹脂シート３２の連続長繊維３１（長さ方向の自
由度がない）の両端部の移動が金型３３，３４で
拘束されるため、金型３３，３４のコーナ部で連
続長繊維３１に張力が作用し、該繊維３１がコー
ナ部３５，３６の曲率内周部および成形品３７の
突部の下側に編在する。その結果、コーナ部３
５，３６の曲率外周部および成形品３７の突部の
上側に樹脂リツチ部３８が生成され、コーナ部３
５，３６および突部の強度が低下する問題が生じ
る。 However, when a molded article 37 having corner portions 35 and 36 as shown in FIG. 6 is molded using the conventional composite resin sheet 32 mixed with continuous long fibers 31, the composite resin sheet 32 has a predetermined bending strength. Therefore, the composite resin sheet 32 does not bend along the curvature of the corner portions 35, 36, and the molding molds 33, 3
4, and when the mold is clamped, the movement of both ends of the continuous filaments 31 (no freedom in the longitudinal direction) of the composite resin sheet 32 is restricted by the molds 33 and 34. Tension is applied to the continuous long fibers 31 at the corner portions of the molds 33 and 34, and the fibers 31 are knitted on the inner periphery of the curvature of the corner portions 35 and 36 and below the protrusion of the molded product 37. As a result, corner part 3
A resin rich portion 38 is generated on the outer periphery of the curvature of parts 5 and 36 and above the protrusion of the molded product 37, and the corner part 3
5, 36 and the strength of the protrusion is reduced.
一方、上記熱硬化性樹脂に、長さ方向の自由度
が大きい短繊維（長さ25〜50mm）を強化繊維とし
て混入した複合樹脂シートも知られているが、こ
の種の樹脂シートによつて上記第６図に示した形
状の成形品を熱プレス成形した場合、短繊維は上
記連続長繊維よりも長さ方向の自由度が大きいた
めに、成形金型３３，３４への沿い性にすぐれ、
したがつて、コーナ部３５，３６および突部にお
ける樹脂リツチ部３８の生成が防止されて、コー
ナ部３５，３６および突部の強度が向上するけれ
ども、連続長繊維３１が混入された複合樹脂シー
ト３２を成形素材とした成形品３７と比較して、
全体的な強度が劣り、強度の要求が高い箇所に使
用する成形品の成形素材として供し得ない問題が
ある。 On the other hand, composite resin sheets are also known in which short fibers (25 to 50 mm in length), which have a large degree of freedom in the longitudinal direction, are mixed into the thermosetting resin as reinforcing fibers. When a molded product having the shape shown in FIG. 6 above is hot-press molded, the short fibers have a greater degree of freedom in the length direction than the continuous long fibers, so they have excellent conformability to the molding dies 33 and 34. ,
Therefore, the formation of resin-rich parts 38 at the corner parts 35, 36 and the protrusions is prevented, and the strength of the corner parts 35, 36 and the protrusions is improved. Compared to molded product 37 using molding material 32,
There is a problem that the overall strength is poor and it cannot be used as a molding material for molded products used in places where strength is required.
（発明の目的）
この発明は上記従来の問題を解決するためにな
されたもので、強化繊維の成形金型への沿い性が
向上されて、成形品のコーナ部などの曲率部およ
び突部の上側における樹脂リツチ部分の生成が防
止され、しかも全体的な強度低下が抑制されて、
強度部材として使用可能な高強度をもつた成形品
が得られる強化繊維を含有する複合樹脂シートを
提供することを目的とする。(Purpose of the Invention) This invention was made to solve the above-mentioned conventional problems, and it improves the conformability of reinforcing fibers to the molding die, and improves the conformability of reinforcing fibers to the molding die. The formation of resin-rich parts on the upper side is prevented, and the overall strength decrease is suppressed.
It is an object of the present invention to provide a composite resin sheet containing reinforcing fibers from which a molded article with high strength that can be used as a strength member can be obtained.
（発明の構成）
上記目的を達成するため、この発明は、熱硬化
性樹脂と該樹脂に混入された強化繊維としての連
続長繊維とからなる複合樹脂シートに、連続長繊
維を切断する千鳥状の切込みを設けて、切断され
ずに混入されている連続長繊維よりも大きい自由
度をもたせるとともに（強度低下を最小限に抑制
した構成としている。(Structure of the Invention) In order to achieve the above object, the present invention provides a composite resin sheet consisting of a thermosetting resin and continuous continuous fibers as reinforcing fibers mixed in the resin, in which continuous fibers are cut in a staggered manner. The incisions are provided to provide a greater degree of freedom than continuous long fibers that are mixed in without being cut, and to minimize the decrease in strength.
（実施例）
以下、この発明の実施例を図面にしたがつて説
明する。(Example) Hereinafter, an example of the present invention will be described with reference to the drawings.
第１図はこの発明に係る強化繊維を含有する複
合樹脂シートの製造装置の一例を示す概略側面図
であり、同図において１はピンチローラ部で、図
示せぬ繰り出し機構から繰り出された強化繊維と
してのガラス繊維からなる多数の連続長繊維２
が、上記ピンチローラ部１を通過することで所定
の厚さと幅寸法に揃えられ、図面右方向に搬送さ
れる。 FIG. 1 is a schematic side view showing an example of a manufacturing apparatus for a composite resin sheet containing reinforcing fibers according to the present invention. In the figure, reference numeral 1 denotes a pinch roller section, and the reinforcing fibers are fed out from a feeding mechanism (not shown). A large number of continuous long fibers made of glass fiber 2
is made uniform in thickness and width by passing through the pinch roller section 1, and is conveyed rightward in the drawing.
連続長繊維２には、その表裏両面に離型剤が含
浸された離型紙３，４が重合される。すなわち、
離型紙３，４は繰り出し機構５，６から繰り出さ
れ、反転ローラ７，８によつて反転されたのち、
圧延ローラ部９を通過することで連続長繊維２の
両面に重合される。 Release papers 3 and 4 impregnated with a release agent on both the front and back sides of the continuous fibers 2 are polymerized. That is,
The release papers 3 and 4 are fed out from feeding mechanisms 5 and 6, and after being reversed by reversing rollers 7 and 8,
By passing through the rolling roller section 9, the continuous filaments 2 are polymerized on both sides.
上記一方の繰り出し機構５から繰り出された離
型紙３の片面には、樹脂供給部１０を通過するこ
とで、たとえば不飽和ポリエステル樹脂、ビニー
ルエステル樹脂などの熱硬化性樹脂１１が、所定
の厚さに塗布形成される。そして、熱硬化性樹脂
１１が離型紙３とともに反転ローラ７によつて反
転されることで連続長繊維２の表面に対応し、上
記圧延ローラ部９を通過することによつて、熱硬
化性樹脂１１に連続長繊維２が混入された複合樹
脂シート１２が得られる。 One side of the release paper 3 fed out from the one feeding mechanism 5 is coated with a thermosetting resin 11 such as unsaturated polyester resin or vinyl ester resin to a predetermined thickness by passing through the resin supply section 10. Formed by coating. Then, the thermosetting resin 11 is reversed together with the release paper 3 by the reversing roller 7 to correspond to the surface of the continuous long fibers 2, and by passing through the rolling roller section 9, the thermosetting resin A composite resin sheet 12 is obtained in which the continuous long fibers 2 are mixed into the composite resin sheet 11.
ついで、第２図に示すように、複数のカツタ１
３が千鳥状に配列されて、上下に移動可能なプレ
スカツタ機構１４を通過することによつて、複合
樹脂シート１２に連続長繊維２を切断する千鳥状
の切込み１５が設けられ、これによつて複合樹脂
成形品の素材として供される複合樹脂シート１２
が得られ、さらに、この複合樹脂シート１２は、
第１図のローラ部１６で送られたのち、巻取機構
１７に巻取られる。 Next, as shown in FIG.
3 are arranged in a staggered pattern and pass through a vertically movable press cutter mechanism 14, thereby creating staggered cuts 15 for cutting the continuous long fibers 2 in the composite resin sheet 12. Composite resin sheet 12 used as a material for composite resin molded products
is obtained, and furthermore, this composite resin sheet 12 is
After being sent by the roller section 16 in FIG. 1, it is wound up by the winding mechanism 17.
したがつて、複合樹脂シート１２は熱硬化性樹
脂１１と、該樹脂１１に混入されたプレスカツタ
機構１４によつて千鳥状に切断された長さ300〜
500mmの強化繊維１８とから構成されている（第
３図参照）。 Therefore, the composite resin sheet 12 is made of thermosetting resin 11 and has a length of 300 to 300 mm cut in a staggered manner by the press cutter mechanism 14 mixed into the resin 11.
500 mm of reinforcing fibers 18 (see Figure 3).
上記構成において、複合樹脂シート１２を、第
４図のように、熱プレス成形金型１９，１９を用
いた熱プレス成形法によつて、コーナ部２０，２
１を有する形状に成形した場合、強化繊維１８は
第１図、第２図のプレスカツタ機構１４によつ
て、長さ300〜500mmに千鳥状に切断されているか
ら、従来の連続長繊維を含有する複合樹脂シート
と比較して、複合樹脂シート１２の曲げ強さが弱
いため該シートがコーナ部２０，２１の曲率に沿
つて容易に撓むから、成型金型１９，１９への沿
い性がよく、しかも、強化繊維１８は切込み部１
５で長さ方向の自由度があるため、型締め時に複
合樹脂シート１２の強化繊維１８の両端部が成形
金型１９，１９で拘束されても繊維が偏在しなく
なり、コーナ部２０，２１および成形品の突部の
上側に従来のような樹脂リツチ部が生成されな
い。その結果、コーナ部２０，２１および突部の
強度が向上する。 In the above configuration, as shown in FIG.
1, the reinforcing fibers 18 are cut into lengths of 300 to 500 mm in a staggered manner by the press cutter mechanism 14 shown in FIGS. 1 and 2, so they contain conventional continuous fibers. Since the bending strength of the composite resin sheet 12 is weaker than that of the composite resin sheet, the sheet easily bends along the curvature of the corner portions 20 and 21, so that it has poor conformability to the molding molds 19 and 19. In addition, the reinforcing fibers 18 are in the cut portion 1.
5 has a degree of freedom in the length direction, so even if both ends of the reinforcing fibers 18 of the composite resin sheet 12 are restrained by the molding molds 19, 19 during mold clamping, the fibers are not unevenly distributed, and the corner parts 20, 21 and A resin-rich portion is not generated above the protrusion of the molded product as in the conventional case. As a result, the strength of the corner portions 20, 21 and the protrusion is improved.
また、強化繊維１８を千鳥状に切断しているた
め、従来の連続長繊維が混入された複合樹脂シー
トと比較して、強度低下がきわめて少なく、短繊
維が混入されている複合樹脂シートよりも高強度
が確保されるので、強度の要求が高い箇所に使用
される複合樹脂成形品の成形素材として供するこ
とができる。 In addition, since the reinforcing fibers 18 are cut in a staggered manner, the strength decrease is extremely small compared to conventional composite resin sheets in which continuous long fibers are mixed, and compared to composite resin sheets in which short fibers are mixed. Since high strength is ensured, it can be used as a molding material for composite resin molded products used in areas with high strength requirements.
（発明の効果）
以上説明したように、この発明によれば、熱硬
化性樹脂に混入されている強化繊維としての連続
長繊維が千鳥状に切断されているから、強化繊維
の成形金形への沿い性が向上し、複合樹脂成形品
のコーナ部などの曲率部および突部における樹脂
リツチ部分の生成が防止されてコーナ部および突
部の強度が向上され、しかも全体的な強度低下が
きわめて少ないから、強度部材として高強度が要
求される成形品の成形素材として有効に利用でき
る。(Effects of the Invention) As explained above, according to the present invention, since the continuous long fibers as reinforcing fibers mixed in the thermosetting resin are cut in a staggered manner, the reinforcing fibers can be molded into a mold. This improves the conformability of the composite resin molded product, prevents the formation of resin-rich areas at curved parts such as corners and protrusions, and improves the strength of corners and protrusions, while minimizing overall strength loss. Since the amount is small, it can be effectively used as a molding material for molded products that require high strength as a strength member.
第１図はこの発明に係る複合樹脂シートの製造
装置の一例を示す概略側面図、第２図は千鳥状の
切込みを形成する状態の一例を示す斜視図、第３
図はこの発明に係る複合樹脂シートの平面図、第
４図は熱プレス成形の一例を示す断面図、第５図
は従来の連続長繊維が混入された複合樹脂シート
の断面図、第６図は熱プレス成形の一例を示す断
面図である。
２……連続長繊維、１１……熱硬化性樹脂、１
５……千鳥状の切込み、１８……強化繊維。
FIG. 1 is a schematic side view showing an example of a composite resin sheet manufacturing apparatus according to the present invention, FIG. 2 is a perspective view showing an example of a state in which staggered cuts are formed, and FIG.
Figure 4 is a plan view of a composite resin sheet according to the present invention, Figure 4 is a sectional view showing an example of hot press molding, Figure 5 is a sectional view of a conventional composite resin sheet mixed with continuous long fibers, and Figure 6. FIG. 2 is a cross-sectional view showing an example of hot press molding. 2... Continuous long fiber, 11... Thermosetting resin, 1
5... Staggered cuts, 18... Reinforced fibers.
Claims (1)
成形品の成形素材として供される複合樹脂シート
において、熱硬化性樹脂と該樹脂に混入された強
化繊維としての連続長繊維とからなる複合樹脂シ
ートに、連続長繊維を切断する千鳥状の切込みを
設けたことを特徴とする強化繊維を含有する複合
樹脂シート。1. In a composite resin sheet used as a molding material for a composite resin molded product molded by a hot press molding method, a composite resin consisting of a thermosetting resin and continuous long fibers as reinforcing fibers mixed into the resin. A composite resin sheet containing reinforcing fibers, characterized in that the sheet is provided with staggered cuts for cutting continuous long fibers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59082540A JPS60224530A (en) | 1984-04-23 | 1984-04-23 | Composite resin sheet containing reinforcing fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59082540A JPS60224530A (en) | 1984-04-23 | 1984-04-23 | Composite resin sheet containing reinforcing fiber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60224530A JPS60224530A (en) | 1985-11-08 |
| JPH0510219B2 true JPH0510219B2 (en) | 1993-02-09 |
Family
ID=13777335
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59082540A Granted JPS60224530A (en) | 1984-04-23 | 1984-04-23 | Composite resin sheet containing reinforcing fiber |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60224530A (en) |
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|---|---|---|---|---|
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| US5306539A (en) * | 1988-08-05 | 1994-04-26 | Masonite Corporation | Scored fiberboard having improved moldability |
| IE902223A1 (en) * | 1989-07-14 | 1991-01-16 | Schlegel Uk Holdings | Method of manufacturing an elastomeric strip |
| US5277571A (en) * | 1992-07-17 | 1994-01-11 | George Schmitt & Co., Inc. | Apparatus for perforation of a sheet material |
| GB9413417D0 (en) * | 1994-07-04 | 1994-08-24 | Ford Roger A | Improved composite materials and method for making them |
| FR2731654A1 (en) * | 1995-03-16 | 1996-09-20 | Michelin & Cie | ZERO DEGREE REINFORCEMENT FOR TIRES AND CUTTING DEVICE FOR PREPARING SUCH REINFORCEMENT |
| US6454893B1 (en) * | 2000-08-24 | 2002-09-24 | Lockheed Martin Corporation | Method of shaping continuous fiber lamina to an undulated surface by cutting individual fibers |
| JP5315692B2 (en) * | 2006-09-28 | 2013-10-16 | 東レ株式会社 | Manufacturing method of fiber reinforced plastic |
| US8449709B2 (en) | 2007-05-25 | 2013-05-28 | The Boeing Company | Method of fabricating fiber reinforced composite structure having stepped surface |
| JP2010046956A (en) * | 2008-08-22 | 2010-03-04 | Toyota Industries Corp | Fiber structure, fiber reinforced composite material, production process of fiber structure, and production process of fiber reinforced composite material |
| ES2338084B1 (en) * | 2008-10-30 | 2011-03-14 | Airbus Operations, S.L. | MANUFACTURING METHOD OF A COMPLEX GEOMETRY PANEL IN PREIMPREGNATED COMPOSITE MATERIAL. |
| DE102011009295A1 (en) * | 2011-01-24 | 2012-07-26 | Basf Se | Method for manufacturing plastic composite component, involves introducing textile structure with yarn in form of fibers or fiber bundles in molding bundle |
| US8918970B2 (en) * | 2011-12-21 | 2014-12-30 | GKN Aerospace Services Structures, Corp. | Hoop tow modification for a fabric preform for a composite component |
| US10654246B2 (en) * | 2012-04-28 | 2020-05-19 | General Electric Company | Composite article and methods therefor |
| JP5979436B2 (en) * | 2012-10-30 | 2016-08-24 | 三菱レイヨン株式会社 | Manufacturing method of fiber reinforced plastic |
| DE102013021124B4 (en) * | 2013-12-13 | 2017-06-14 | Eissmann Cotesa Gmbh | Semi-finished product with continuous fibers in unhardened thermosetting plastic matrices for the realization of uneven plate-shaped objects |
| WO2017022835A1 (en) * | 2015-08-04 | 2017-02-09 | 三菱レイヨン株式会社 | Fiber-reinforced plastic and method for producing same |
| PT3548274T (en) * | 2016-11-30 | 2023-09-14 | Teijin Automotive Tech Inc | Hybrid fiber based molding thermoplastic article and process of forming same |
| DE202017105285U1 (en) | 2017-09-01 | 2018-11-06 | Dieffenbacher GmbH Maschinen- und Anlagenbau | Tape laying device with selective cutting device |
| AT520355A2 (en) * | 2017-09-01 | 2019-03-15 | Dieffenbacher Gmbh Maschinen | Tape laying device with selective incising device and tape cutting method with selective cutting |
| US12479186B2 (en) * | 2020-12-28 | 2025-11-25 | Mitsubishi Heavy Industries, Ltd. | Fiber-reinforced sheet laminate, production method for fiber-reinforced sheet laminate, and production method for structure |
| CN113561519B (en) * | 2021-09-26 | 2021-12-28 | 昌亚新材料科技有限公司 | Fiber-toughened multilayer plastic profile, preparation method thereof and degradable food lunch box |
-
1984
- 1984-04-23 JP JP59082540A patent/JPS60224530A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60224530A (en) | 1985-11-08 |
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