JPH0823096B2 - Triaxial reinforced fabric - Google Patents
Triaxial reinforced fabricInfo
- Publication number
- JPH0823096B2 JPH0823096B2 JP1247948A JP24794889A JPH0823096B2 JP H0823096 B2 JPH0823096 B2 JP H0823096B2 JP 1247948 A JP1247948 A JP 1247948A JP 24794889 A JP24794889 A JP 24794889A JP H0823096 B2 JPH0823096 B2 JP H0823096B2
- Authority
- JP
- Japan
- Prior art keywords
- weaving
- yarns
- yarn
- yarn group
- auxiliary
- 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
- 239000004744 fabric Substances 0.000 title claims description 15
- 238000009941 weaving Methods 0.000 claims description 84
- 239000002759 woven fabric Substances 0.000 claims description 34
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 22
- 239000004917 carbon fiber Substances 0.000 claims description 22
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 19
- 239000000835 fiber Substances 0.000 claims description 4
- 229920003235 aromatic polyamide Polymers 0.000 claims description 3
- 239000003365 glass fiber Substances 0.000 claims description 3
- 230000003014 reinforcing effect Effects 0.000 claims 1
- 239000010410 layer Substances 0.000 description 9
- 239000004918 carbon fiber reinforced polymer Substances 0.000 description 5
- 239000002131 composite material Substances 0.000 description 5
- 239000012779 reinforcing material Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007429 general method Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000011208 reinforced composite material Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Landscapes
- Reinforced Plastic Materials (AREA)
- Moulding By Coating Moulds (AREA)
- Woven Fabrics (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） この発明は、炭素繊維強化プラスチック（CFRP）、炭
素繊維強化炭素（CFRC）、炭素繊維強化金属（CFRM）な
どの炭素繊維強化複合材料を成形する際の補強材として
使用するのに好適な炭素繊維三軸織物に関する。DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention forms carbon fiber reinforced composite materials such as carbon fiber reinforced plastic (CFRP), carbon fiber reinforced carbon (CFRC) and carbon fiber reinforced metal (CFRM). The present invention relates to a carbon fiber triaxial woven fabric suitable for use as a reinforcing material.
（従来の技術） CFRPなど、炭素繊維を補強材とする複合材料を成形す
るときには、炭素繊維を織物の形態で使用することがよ
く知られている。その場合、通常は、複数枚の炭素繊維
の織物またはプリプレグを積層して使用している。(Prior Art) It is well known to use carbon fibers in the form of a woven fabric when molding a composite material having carbon fibers as a reinforcing material such as CFRP. In that case, usually, a plurality of carbon fiber woven fabrics or prepregs are laminated and used.
このとき、通常の織物は、織糸が径糸、緯糸として互
いに直交する０゜,90゜の２方向のみに延在していて、
そのまま積層したのでは成形品の異方性が著しく大きく
なるので、それを防ぐために、織物を互いに45゜づつず
らして積層する。いわゆる疑似等方積層である。At this time, in the ordinary woven fabric, the weaving yarn extends only in two directions of 0 ° and 90 ° which are orthogonal to each other as a diameter yarn and a weft yarn,
If laminated as it is, the anisotropy of the molded article becomes remarkably large, so in order to prevent this, the woven fabrics are laminated by shifting each other by 45 °. This is so-called pseudo isotropic stacking.
しかしながら、０゜,90゜に織糸が配向した通常の織
物から、45゜方向に織物を裁断できる寸法には制限があ
るため、桁材のように長いCFRPを成形するときには織物
を互いに繋ぎ合わせることが必要となる。そのため、成
形品では、補強材の炭素繊維が途中で切断された状態に
あり、結局は、強度の低いものしか得られないという問
題があった。However, there is a limit to the size at which the fabric can be cut in the 45 ° direction from the ordinary fabric in which the weaving yarns are oriented at 0 ° and 90 °. Will be required. Therefore, the molded product has a problem that the carbon fiber of the reinforcing material is cut in the middle of the product, and only a product having low strength is finally obtained.
このような問題の解決を目的として、第１の織糸群と
第２の織糸群とを層状に配置し、両者に、細い補助糸か
らなる第３の織糸群を上記各織糸群を構成する織糸と交
錯せしめて織り込んだ、三軸補強織物が提案されている
（特開昭58−9255号参照）。For the purpose of solving such a problem, a first weaving yarn group and a second weaving yarn group are arranged in layers, and a third weaving yarn group consisting of thin auxiliary yarns is formed on each of the first and second weaving yarn groups to form each of the above weaving yarn groups. A triaxial reinforced woven fabric interwoven with yarns has been proposed (see JP-A-58-9255).
しかしながら、上記した三軸補強織物の場合、第３の
織糸群の密度（単位長さ当りの織糸本数）と第１の織糸
群および第２の織糸群の密度はほぼ等しく、しかも、等
間隔で織り込まれているので、ドレープ性が劣り、ま
た、この織物を積層したときには、層間に補助糸の層が
形成されることになって、得られた成形品の層間強度が
弱くなるという欠点があった。However, in the case of the above triaxially reinforced woven fabric, the density of the third weaving yarn group (the number of weaving yarns per unit length) and the densities of the first weaving yarn group and the second weaving yarn group are substantially equal, and at equal intervals. Since it is woven in, the drapeability is inferior, and when the woven fabrics are laminated, a layer of auxiliary yarn is formed between the layers, and the interlayer strength of the obtained molded product becomes weak. there were.
（発明が解決しようとする課題） この発明の目的は、上記した従来の三軸補強織物にお
ける問題点を解決し、ドレープ性に優れ、複合材料を成
形したときに炭素繊維の特性を充分に発現せしめること
ができる、炭素繊維三軸織物を提供することにある。(Problems to be Solved by the Invention) An object of the present invention is to solve the problems in the conventional triaxially reinforced woven fabrics described above, to have excellent drapeability, and to sufficiently exhibit the characteristics of carbon fibers when a composite material is molded. An object of the present invention is to provide a carbon fiber triaxial woven fabric that can be pressed.
（課題を解決するための手段） 上記した目的を達成するために、この発明において
は、互いに並行する織糸からなる第１の織糸群と同じく
互いに並行する織糸からなる第２の織糸群とが層状に配
置され、第３の織糸群を構成する、互いに並行する補助
糸が前記第１の織糸群および第２の織糸群の各織糸と交
互に交錯している三軸織物であって、 A:前記第１の織糸群および第２の織糸群の各織糸はいず
れも炭素繊維糸であり、かつ前記第３の織糸群の補助糸
は、ガラス繊維糸、ポリアラミド繊維糸または炭素繊維
糸であり、 B:前記第１の織糸群の織糸と第２の織糸群の織糸は、80
゜〜100゜の角度をなしており、 C:前記第３の織糸群においては、１〜４本の前記補助糸
が組をなし、かつ組ピッチが10〜30mmであり、 D:前記補助糸の横断面積は、前記第１の織糸群および第
２の織糸群の各織糸の横断面積の1/15〜1/5である、 ことを特徴とする三軸補強織物が提供される。(Means for Solving the Problem) In order to achieve the above-mentioned object, in the present invention, a first weaving yarn group consisting of weaving yarns parallel to each other and a second weaving yarn group consisting of weaving yarns parallel to each other are provided. A triaxial woven fabric in which auxiliary yarns which are arranged in layers and which constitute a third weaving yarn group and which are parallel to each other are alternately intersected with the respective weaving yarns of the first weaving yarn group and the second weaving yarn group. A: each of the first and second woven yarn groups is a carbon fiber yarn, and the auxiliary yarn of the third woven yarn group is a glass fiber yarn, a polyaramid fiber yarn, or a carbon fiber yarn. B: the weaving yarn of the first weaving yarn group and the weaving yarn of the second weaving yarn group are 80
The angle of ゜ to 100 ゜, C: in the third weaving yarn group, 1 to 4 of the auxiliary yarns form a set, and the set pitch is 10 to 30 mm, D: the auxiliary yarn The triaxial reinforced woven fabric is characterized in that the cross-sectional area of is 1/15 to 1/5 of the cross-sectional area of each of the first and second weaving yarn groups.
この発明の三軸織物においては、まず、第１の織糸群
と第２の織糸群は、いずれにおいても、互いに並行する
織糸からなり、この織糸には同一目付（同一繊度）の炭
素繊維の織糸が使用される。In the triaxial woven fabric of the present invention, first, the first weaving yarn group and the second weaving yarn group are made of weaving yarns that are parallel to each other, and the weaving yarns have the same basis weight (same fineness). Woven yarn is used.
この第１の織糸群と第２の織糸群は、80〜100゜の角
度をなしている。この角度が上記した値から外れると、
得られた織物の斜め方向の剪断応力が小さくなるからで
ある。好ましくは90゜である。The first yarn group and the second yarn group make an angle of 80 to 100 °. If this angle deviates from the above value,
This is because the diagonal stress of the obtained woven fabric becomes small. It is preferably 90 °.
すなわち、第１の織糸群と第２の織糸群との角度を90
゜にすると、織物の長さ方向に対して０゜,90゜に織糸
が配向した通常の炭素繊維織物と、＋45゜，−45゜に織
糸が配向した三軸織物を交互に積層することによって、
疑似等方性で長い成形品を容易に得ることができる。ま
た、第１の織糸群と第２の織糸群の角度を90゜にする
と、それは、織物の長さ方向に対して、炭素繊維が＋45
゜，−45゜に配向した三軸織物になるので、それを用い
て桁材などを成形したときに、良好な剪断強度を発現で
きるようになる。That is, the angle between the first yarn group and the second yarn group is 90
When the angle is set to 0 °, the normal carbon fiber woven fabric in which the weaving yarn is oriented at 0 ° and 90 ° with respect to the length direction of the fabric and the triaxial woven fabric in which the weaving yarn is oriented at + 45 ° and −45 ° are alternately laminated. By
Pseudo-isotropic and long molded products can be easily obtained. When the angle between the first weave yarn group and the second weave yarn group is 90 °, the carbon fiber is +45 in the length direction of the woven fabric.
Since it is a triaxial woven fabric oriented in ° and -45 °, good shear strength can be exhibited when a girder material or the like is molded using the woven fabric.
このように層状をなす第１の織糸群と第２の織糸群に
は、第３の織糸群が織り込まれる。The third weave yarn group is woven into the first weave yarn group and the second weave yarn group which are layered in this way.
この第３の織糸群は、第１の織糸群と第２の織糸群の
位置ずれを防止して織物全体の形態保持のために織り込
まれるものであって、１〜４本の、互いに並行する補助
糸を１組として構成される。The third weaving yarn group is woven in order to prevent positional deviation between the first weaving yarn group and the second weaving yarn group and to maintain the shape of the entire fabric. It is configured as a set of auxiliary threads.
補助糸としては、プリプレグ加工時や成形時の加熱に
よる熱収縮を防ぎ、かつ複合材料にしたときに、その特
性に悪影響を与えないということから、ガラス繊維，ポ
リアラミド繊維または炭素繊維が用いられる。As the auxiliary yarn, glass fiber, polyaramid fiber or carbon fiber is used because it prevents heat shrinkage due to heating during prepreg processing and molding and does not adversely affect the properties of the composite material.
第３の織糸群は、それらを構成する１〜４本の補助糸
が、交互に、第１の織糸群と第２の織糸群の各織糸の間
を交錯するように織り込まれ、かつ、その織り込まれた
領域から10〜30mm離れた個所に再び前記の態様で織り込
まれる。このような織り込みが、織物の長さ方向に反復
されることにより、織物のドレープ性が大幅に向上し
て、複雑形状の成形品の製造時において、織物を積層し
た時に織糸の配向が乱れるという問題を解消できる。The third weaving yarn group is woven so that 1 to 4 auxiliary yarns constituting them are alternately interlaced between the respective weaving yarns of the first weaving yarn group and the second weaving yarn group, and It is woven again in the manner described above at a location 10 to 30 mm away from the woven area. By repeating such weaving in the length direction of the fabric, the drape property of the fabric is significantly improved, and the orientation of the weaving yarn is disturbed when the fabrics are laminated in manufacturing a molded article having a complicated shape. The problem can be solved.
この場合、第３の織糸群が織り込まれている領域の間
隔が10mm未満であると、得られた三軸織物のドレープ性
は低くなり、また30mmより間隔が広くなると、得られた
三軸織物の形態が不安定になる。In this case, if the space between the regions in which the third weaving yarn group is woven is less than 10 mm, the drape property of the obtained triaxial woven fabric is low, and if the space is wider than 30 mm, the obtained triaxial woven fabric is obtained. Form becomes unstable.
また、補助糸の太さ、すなわち断面積の大小もドレー
プ性に影響を与え、その断面積が、第１の織糸群と第２
の織糸群の炭素繊維の断面積の1/5より大きい場合は、
織糸相互間の交錯が強くなることによって、得られた織
物のドレープ性が低くなり、また1/15より小さい場合
は、ドレープ性は向上するが、しかし補助糸が細すぎ
て、製織時に補助糸が糸切れしたり、または得られた織
物の形態が不安定になるという問題を生ずる。In addition, the thickness of the auxiliary yarn, that is, the size of the cross-sectional area also affects the drapeability, and the cross-sectional area is different from that of the first weaving yarn group
If it is larger than 1/5 of the cross-sectional area of the carbon fiber of the
When the weaving yarns are less than 1/15 in size, the drapeability of the obtained woven fabric is improved due to the strong interlacing between the weaving yarns, but the auxiliary yarns are too thin and the auxiliary yarns are used during weaving. This causes problems such as yarn breakage or unstable morphology of the resulting fabric.
さらに、補助糸の本数をあまり多くすると、第１の織
糸群と第２の織糸群の各織糸との交錯が強くなって、織
物のドレープ性が低くなるので、その本数は、前記した
ように１〜４本とする。Furthermore, if the number of auxiliary yarns is too large, the woven yarns of the first and second weaving yarn groups are more likely to intersect with each other and the drape property of the woven fabric is deteriorated. 1 to 4 pieces.
（実施態様） 第１図は、この発明の三軸織物の一部切欠平面図であ
る。図において、矢印ｌ方向が織物の長さ方向になって
いる。(Embodiment) FIG. 1 is a partially cutaway plan view of the triaxial woven fabric of the present invention. In the figure, the arrow l direction is the length direction of the fabric.
互いに並行する炭素繊維の織糸a1,a2,a3,a4,a5……か
らなる第１の織糸群と、同じく互いに並行する炭素繊維
の織糸b1,b2,b3,b4,b5……からなる第２の織糸群は層状
に積層されている。第１の織糸群と第２の織糸群がなす
角度αは90゜になっている。A first weaving yarn group consisting of carbon fiber weaving yarns a 1 , a 2 , a 3 , a 4 , a 5 ... which are parallel to each other, and carbon fiber weaving yarns b 1 , b 2 and b 3 which are also parallel to each other. , b 4 , b 5 ... The second weaving yarn group is laminated in layers. The angle α formed by the first yarn group and the second yarn group is 90 °.
第１の織糸群の織糸a1,a2,a3,a4,a5……と第２の織糸
群の織糸b1,b2,b3,b4,b5…に対しては、織物の幅方向か
ら、c1,c2,c3,c4,c5,c6……の補助糸からなる第３の織
糸群が２本交互に織り込まれている。この場合、各補助
糸c1,c2……と織糸a1,a2……とがなす角度β，および、
各補助糸c1,c2……と織糸b1,b2……とがなす角度γは、
いずれも45゜と同じである。For the yarns a 1 , a 2 , a 3 , a 4 , a 5 ... of the first yarn group and the yarns b 1 , b 2 , b 3 , b 4 , b 5 ... of the second yarn group Te is the width direction of the fabric, c 1, c 2, c 3, c 4, c 5, a third yarn group comprising an auxiliary yarn c 6 ...... are woven into two alternately. In this case, the angle β formed by each auxiliary yarn c 1 , c 2 ... and the weaving yarn a 1 , a 2 ..., and
The angle γ formed by each auxiliary yarn c 1 , c 2 ... and the weaving yarn b 1 , b 2 ... is
Both are the same as 45 °.
補助糸の織り込みの状態をc1,c2について説明する
と、補助糸c1は、織糸a1と織糸b1の上側を通って、織糸
a2と織糸b2の下側に回り込み、織糸a3と織糸b3の上側に
再びでて、織糸a4と織糸b4の下側に再び回り込む、とい
う織り込みの態様を織物の幅方向に連続して反復する。Explaining the woven state of the auxiliary yarns with respect to c 1 and c 2 , the auxiliary yarn c 1 passes above the woven yarn a 1 and the woven yarn b 1 and
wraparound below the a 2 and yarns b 2, out again on the upper side of the yarn a 3 and yarns b 3, goes around again below the yarn a 4 and yarns b 4, the mode of weaving of Repeat continuously across the width of the fabric.
そして、補助糸c2は，織糸a1と織糸b2の上側を通っ
て、織糸a2と織糸b3の下側に回り込み、織糸a3と織糸b4
の上側に再びでたのち、織糸a4と織糸b5の下側に再び回
り込む、という織り込みの態様を織物の幅方向に連続し
て反復する。このような織り込みにより、第１の織糸
群、第２の織糸群の各織糸は補助糸によって形態保持さ
れる。Then, the auxiliary yarn c 2 passes above the woven yarn a 1 and the woven yarn b 2 and wraps around the lower side of the woven yarn a 2 and the woven yarn b 3 , and the woven yarn a 3 and the woven yarn b 4
The weaving mode, in which the weaving yarn a 4 and the weaving yarn b 5 wrap around again, is continuously repeated in the width direction of the fabric. By such weaving, the respective weaving yarns of the first weaving yarn group and the second weaving yarn group are held by the auxiliary yarns.
そして、補助糸c1,c2が織り込まれている領域から10
〜30mm離れている個所には、補助糸c1,c2と同じような
織り込み態様で補助糸c3,c4が織り込まれ、さらに、そ
の領域から10〜30mm離隔して補助糸c5,c6が同じような
織り込みの態様で織り込まれる。このような態様が織物
の長さ方向ｌにおいてピッチｐで反復して連続すること
により、第３の織糸群が構成されている。Then, from the area where the auxiliary threads c 1 and c 2 are woven,
Auxiliary yarns c 3 and c 4 are woven in a place similar to the auxiliary yarns c 1 and c 2 at a position apart by -30 mm, and further, the auxiliary yarns c 5 and c 4 are separated by 10 to 30 mm from the region. c 6 is woven in a similar weave manner. A third weaving yarn group is formed by repeating such a mode repeatedly at the pitch p in the length direction 1 of the woven fabric.
このような三軸織物は、公知の三軸織機を用いること
により容易に織成することができる。Such a triaxial woven fabric can be easily woven by using a known triaxial weaving machine.
この発明の三軸織物を用いた、複合材料の成形は、従
来から公知の方法で行なうことができ、たとえば、従来
のいわゆる二方向織物を使用する場合と何ら変るもので
はない。なかでも、織物を積層したのち、樹脂を含浸し
て成形す方法や、プリプレグ化したものを使用する、い
わゆるプリプレグ法などを一般的な方法としてあげるこ
とができる。The molding of the composite material using the triaxial woven fabric of the present invention can be carried out by a conventionally known method, for example, there is no difference from the case where a conventional so-called bidirectional woven fabric is used. Among them, general methods include a method in which a woven fabric is laminated and then impregnated with a resin to be molded, and a so-called prepreg method in which a prepreg is used is used.
（発明の効果） 以上の説明で明らかなように、この発明の炭素繊維三
軸織物を補強材として用いると、たとえば、桁材のよう
な長いCFRPを形成するときに、±45゜に繊維配向した基
材の繋ぎ合わせを行なう必要がなくなり、炭素繊維は途
中で切断された状態にならないため、強度の高いCFRPを
得ることができる。(Effect of the invention) As is clear from the above description, when the carbon fiber triaxial woven fabric of the present invention is used as a reinforcing material, for example, when forming a long CFRP such as a girder material, the fiber orientation is ± 45 °. Since it is no longer necessary to connect the above-mentioned base materials and the carbon fiber is not cut in the middle, CFRP having high strength can be obtained.
また、この三軸織物はドレープ性が優れているので、
複雑形状の成形品を製造する際に、補強材である織物を
その成形品の形状に沿わせても、織糸の配向が乱れると
いう事態は起らない。Also, since this triaxial fabric has excellent drapeability,
When manufacturing a molded article having a complicated shape, the orientation of the weaving yarn is not disturbed even if the woven fabric as the reinforcing material is made to follow the shape of the molded article.
さらに、従来の三軸織物では、層間に補助糸の層が形
成されるため、複合材料にした場合には、層間の強度が
弱くなるという問題を生じていたが、この発明の三軸織
物では、補助糸の使用量が少なく、層間の強度を弱める
という問題は起らなくなる。Furthermore, in the conventional triaxial woven fabric, since the layer of the auxiliary yarn is formed between the layers, there is a problem that the strength between the layers is weakened when the composite material is used. The amount of auxiliary yarn used is small, and the problem of weakening the strength between layers does not occur.
第１図は、この発明の三軸織物の一部切欠平面図であ
る。 a1,a2,a3,a4,a5……第１の織糸群を構成する織糸、b1,b
2,b3,b4,b5……第２の織糸群を構成する織糸、c1,c2,
c3,c4,c5,c6……第３の織糸群を構成する補助糸。FIG. 1 is a partially cutaway plan view of the triaxial woven fabric of the present invention. a 1 , a 2 , a 3 , a 4 , a 5 ... weaving yarns constituting the first weaving yarn group, b 1 , b
2 , b 3 , b 4 , b 5 ... weaving yarns constituting the second weaving yarn group, c 1 , c 2 ,
c 3, c 4, c 5 , c 6 ...... third auxiliary yarns constituting the weaving yarn group.
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭50−132260（ＪＰ，Ａ) 特開 昭58−163750（ＪＰ，Ａ) 特公 昭49−8423（ＪＰ，Ｂ１) 実公 昭45−11573（ＪＰ，Ｙ１) ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-50-132260 (JP, A) JP-A-58-163750 (JP, A) JP-B-49-8423 (JP, B1) JP-B-45- 11573 (JP, Y1)
Claims (1)
と同じく互いに並行する織糸からなる第２の織糸群とが
層状に配置され、第３の織糸群を構成する、互いに並行
する補助糸が前記第１の織糸群および第２の織糸群の各
織糸と交互に交錯している三軸織物であって、 A:前記第１の織糸群および第２の織糸群の各織糸はいず
れも炭素繊維糸であり、かつ前記第３の織糸群の補助糸
は、ガラス繊維糸、ポリアラミド繊維糸または炭素繊維
糸であり、 B:前記第１の織糸群の織糸と第２の織糸群の織糸は、80
゜〜100゜の角度をなしており、 C:前記第３の織糸群においては、１〜４本の前記補助糸
が組をなし、かつ組ピッチが10〜30mmであり、 D:前記補助糸の横断面積は、前記第１の織糸群および第
２の織糸群の各織糸の横断面積の1/15〜1/5である、 ことを特徴とする三軸補強織物。1. A first weaving yarn group of parallel weaving yarns and a second weaving yarn group of similar weaving yarns are arranged in layers to form a third weaving yarn group, which are parallel to each other. A triaxial woven fabric in which auxiliary yarns are alternately intersecting with the respective weaving yarns of the first weaving yarn group and the second weaving yarn group, wherein A: each of the first weaving yarn group and the second weaving yarn group All the yarns are carbon fiber yarns, and the auxiliary yarns of the third weaving yarn group are glass fiber yarns, polyaramid fiber yarns or carbon fiber yarns, B: the weaving yarns of the first weaving yarn group and the second yarns. The weaving threads of the
The angle of ゜ to 100 ゜, C: in the third weaving yarn group, 1 to 4 of the auxiliary yarns form a set, and the set pitch is 10 to 30 mm, D: the auxiliary yarn The triaxial reinforcing fabric is characterized in that the cross-sectional area thereof is 1/15 to 1/5 of the cross-sectional area of each of the first and second weaving yarn groups.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1247948A JPH0823096B2 (en) | 1989-09-26 | 1989-09-26 | Triaxial reinforced fabric |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1247948A JPH0823096B2 (en) | 1989-09-26 | 1989-09-26 | Triaxial reinforced fabric |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03113039A JPH03113039A (en) | 1991-05-14 |
| JPH0823096B2 true JPH0823096B2 (en) | 1996-03-06 |
Family
ID=17170929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1247948A Expired - Lifetime JPH0823096B2 (en) | 1989-09-26 | 1989-09-26 | Triaxial reinforced fabric |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0823096B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08130409A (en) * | 1994-10-28 | 1996-05-21 | Nec Aerospace Syst Ltd | antenna |
| US5702993A (en) * | 1994-11-04 | 1997-12-30 | Nippon Steel Corporation | Triaxial fabric composed of carbon fiber strands and method for production thereof |
| CN103753828B (en) * | 2013-12-30 | 2016-01-13 | 广东生益科技股份有限公司 | A kind of electronic-grade glass fiber cloth and the copper-clad plate being reinforcing material with it |
-
1989
- 1989-09-26 JP JP1247948A patent/JPH0823096B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03113039A (en) | 1991-05-14 |
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