JPH0555578B2 - - Google Patents
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- Publication number
- JPH0555578B2 JPH0555578B2 JP657585A JP657585A JPH0555578B2 JP H0555578 B2 JPH0555578 B2 JP H0555578B2 JP 657585 A JP657585 A JP 657585A JP 657585 A JP657585 A JP 657585A JP H0555578 B2 JPH0555578 B2 JP H0555578B2
- Authority
- JP
- Japan
- Prior art keywords
- short fiber
- short
- molded body
- fiber molded
- composite material
- 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 - Fee Related
Links
- 239000000835 fiber Substances 0.000 claims description 84
- 239000002131 composite material Substances 0.000 claims description 15
- 238000004519 manufacturing process Methods 0.000 claims description 14
- 239000011230 binding agent Substances 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 5
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 18
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 15
- 239000000463 material Substances 0.000 description 11
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 10
- 239000000377 silicon dioxide Substances 0.000 description 8
- 238000005266 casting Methods 0.000 description 7
- 239000003733 fiber-reinforced composite Substances 0.000 description 7
- 238000007906 compression Methods 0.000 description 4
- QDOXWKRWXJOMAK-UHFFFAOYSA-N dichromium trioxide Chemical compound O=[Cr]O[Cr]=O QDOXWKRWXJOMAK-UHFFFAOYSA-N 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 239000008119 colloidal silica Substances 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 239000012783 reinforcing fiber Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Manufacture Of Alloys Or Alloy Compounds (AREA)
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、繊維強化複合材料に係り、更に詳細
には繊維強化複合材料の製造に使用される短繊維
成形体及びその製造方法に係る。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a fiber-reinforced composite material, and more particularly to a short fiber molded article used in the production of a fiber-reinforced composite material and a method for producing the same.
従来の技術
繊維強化複合材料、特に短繊維を強化繊維とす
る繊維強化複合材料の製造方法の一つとして、短
繊維の成形体を形成し、該成形体内に溶融マトリ
ツクスを加圧浸透させる加圧鋳造法が従来より知
られている。加圧鋳造法による繊維強化複合材料
の製造に際しては、成形体の形状及び短繊維の配
向、体積率を所定の形状及び状態に維持する必要
があることから、個々の短繊維がバインダにて互
いに結合された実質的に剛固な短繊維成形体を形
成することが従来より行われている。BACKGROUND TECHNOLOGY One of the methods for manufacturing fiber-reinforced composite materials, particularly fiber-reinforced composite materials using short fibers as reinforcing fibers, is to form a molded body of short fibers and pressurize a molten matrix to infiltrate into the molded body. Casting methods are conventionally known. When manufacturing fiber-reinforced composite materials using the pressure casting method, it is necessary to maintain the shape of the molded object and the orientation and volume ratio of the short fibers in a predetermined shape and state. It is conventional practice to form bonded, substantially rigid short fiber compacts.
発明が解決しようとする問題点
しかしかかる従来の短繊維成形体に於ては、製
造されるべき複合材料の特定の部分の強度、剛性
などを向上させるべく、短繊維成形体の特定の部
分の繊維体積率が高くなるようよう短繊維成形体
の繊維体積率を部分的に変化させることはできな
い。また製造されるべき複合材料の形状が複雑で
あり、従つて複雑な形状の短繊維成形体が必要と
される場合に、短繊維成形体をその脆性破壊を伴
なうことなく所望の複雑な形状に変形させること
ができないため、簡単な形状の短繊維成形体に対
し切削等の機械加工を施さなければならず、従つ
て複雑な形状の短繊維成形体を低廉に且能率よく
製造することが困難である。Problems to be Solved by the Invention However, in such conventional short fiber molded bodies, in order to improve the strength, rigidity, etc. of specific parts of the composite material to be manufactured, certain portions of the short fiber molded body are It is not possible to partially change the fiber volume fraction of the short fiber molded article so as to increase the fiber volume fraction. In addition, when the shape of the composite material to be manufactured is complex and therefore a short fiber molded body with a complicated shape is required, the short fiber molded body can be shaped into the desired complex shape without brittle fracture. Since it cannot be transformed into a shape, it is necessary to perform machining such as cutting on a short fiber molded article with a simple shape.Therefore, it is necessary to inexpensively and efficiently produce a short fiber molded article with a complicated shape. is difficult.
本発明は加圧鋳造法などによる複合材料の製造
に従来より使用されている短繊維成形体に於ける
上述の如き問題に鑑み、これらの問題が生じるこ
とのない短繊維成形体及びその製造方法を提供す
ることを目的としている。 In view of the above-mentioned problems in short fiber molded bodies conventionally used for manufacturing composite materials by pressure casting, etc., the present invention provides a short fiber molded body and a method for producing the same that do not cause these problems. is intended to provide.
問題点を解決するための手段
上述の如き目的は、本発明によれば、バインダ
にて結合された多数の短繊維よりなる複合材料製
造用短繊維成形体にして、特定の部分のみが自由
に変形可能であることを特徴とする複合材料製造
用短繊維成形体、及び複合材料製造用短繊維成形
体の製造方法にして、特定の溶液に溶解するバイ
ンダにて結合された多数の短繊維によりなる成形
体を形成し、前記成形体の特定の部分を前記溶液
にて処理することを特徴とする複合材料製造用短
繊維成形体の製造方法によつて達成される。Means for Solving the Problems According to the present invention, the above-mentioned object is to create a short fiber molded article for composite material production consisting of a large number of short fibers bound together with a binder, so that only specific portions are free. A short fiber molded article for producing a composite material characterized by being deformable, and a method for producing a short fiber molded article for producing a composite material, which uses a large number of short fibers bound together with a binder that dissolves in a specific solution. This is achieved by a method for producing a short fiber molded article for producing a composite material, which comprises forming a molded article, and treating specific portions of the molded article with the solution.
発明の作用及び効果
本発明の短繊維成形体によれば、特定の部分の
みが自由に弾性変形可能であるので、該特定の部
分に対し圧縮等の加工を行うことにより特定の部
分の繊維体積率を変化させることができ、また脆
性破壊を伴うことなく複雑な形状の短繊維成形体
を容易に且低廉に製造することができる。Effects and Effects of the Invention According to the short fiber molded article of the present invention, since only a specific portion can be freely elastically deformed, by performing processing such as compression on the specific portion, the fiber volume of the specific portion can be The ratio can be changed, and short fiber molded bodies of complex shapes can be easily and inexpensively produced without causing brittle fracture.
また本発明の短繊維成形体の製造方法によれ
ば、特定の溶液に溶解するバインダにて結合され
た多数の短繊維よりなる成形体が形成され、該成
形体の特定の部分が前記溶液にて処理されること
により、前記特定の部分のバインダが軟化若しく
は除去されるので、特定の部分のみが自由に変形
可能である短繊維成形体を容易に且低廉に製造す
ることができる。 Further, according to the method for producing a short fiber molded article of the present invention, a molded article is formed which is made up of a large number of short fibers bound together with a binder that dissolves in a specific solution, and a specific portion of the molded article is immersed in the solution. By this treatment, the binder in the specific portion is softened or removed, so that a short fiber molded article in which only the specific portion is freely deformable can be easily and inexpensively produced.
以下に添付の図を参照しつつ、本発明を実施例
について詳細に説明する。 DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention will be explained in detail below by way of example embodiments with reference to the accompanying figures.
実施例 １
バインダとしてコロイダルシリカ（商品明「ス
ノーテツクス」）を使用して平均繊維長３mm、繊
維径２〜3μのアルミナ短繊維１（ICI株式会社製
「サフイル」）を吸引成形し、コロイダルシリカを
乾燥させることにより、シリカにて互いに結合さ
れたアルミナ短繊維よりなり、長さ75mm、幅50
mm、厚さ15mmの寸法を有し、繊維体積率が５％で
ある成形体２を形成した。次いで第１図に於てハ
ツチングが施された長さ25mm、幅25mmの領域３に
HFを滴下し、シリカをHFにて溶解することに
よりこれを除去した。しかる後成形体２を加熱す
ることによりアルミナ短繊維に付着していたHF
を蒸発させ、これにより領域３のみが自由に変形
可能な短繊維成形体を形成した。Example 1 Using colloidal silica (product name "Snowtex") as a binder, short alumina fibers 1 ("Safil" manufactured by ICI Corporation) with an average fiber length of 3 mm and a fiber diameter of 2 to 3 μm were suction-molded, and the colloidal silica was By drying, it is made of short alumina fibers bonded together with silica, and has a length of 75 mm and a width of 50 mm.
A molded body 2 having dimensions of 15 mm and a thickness of 15 mm and a fiber volume fraction of 5% was formed. Next, in the hatched area 3 of 25 mm in length and 25 mm in width in Figure 1,
HF was added dropwise and the silica was removed by dissolving it in HF. Thereafter, by heating the compact 2, the HF that had adhered to the alumina short fibers was removed.
was evaporated, thereby forming a short fiber molded body in which only region 3 was freely deformable.
次いで第２図に示されている如く、互に共働し
て短繊維成形体を受入れる実質的に直方体状の二
つのモールドキヤビテイ４及び５と、これらモー
ルドキヤビテイに連通する加圧室６とを郭定する
上型７及び下型８と、加圧室６に嵌合する加圧プ
ランジヤ９及びノツクアウトプランジヤ１０と、
加圧室６に連通する湯道１１と、モールドキヤビ
テイより凝固体を取出すための複数個のノツクア
ウトピン１２とを有する加圧鋳造装置１３を用意
した。尚モールドキヤビテイ４及び５の上下壁面
間の距離は15mmｍであり、上型７及び下型８は短
繊維成形体の領域３を受ける部分に長さ25mm、幅
25mmの長方形の突部１４及び１５を有しており、
これらの突部の間の距離は４mmであつた。 Next, as shown in FIG. 2, two substantially rectangular parallelepiped mold cavities 4 and 5 that cooperate with each other to receive the short fiber molded article, and a pressurizing chamber 6 that communicates with these mold cavities. an upper mold 7 and a lower mold 8 that define
A pressure casting apparatus 13 having a runner 11 communicating with the pressurizing chamber 6 and a plurality of knockout pins 12 for taking out the solidified material from the mold cavity was prepared. The distance between the upper and lower walls of mold cavities 4 and 5 is 15 mm, and the upper mold 7 and lower mold 8 have a length of 25 mm and a width of
It has rectangular protrusions 14 and 15 of 25 mm,
The distance between these protrusions was 4 mm.
次いで短繊維成形体を300℃に予熱した後、該
短繊維成形体をその領域３が突部１４及び１５の
間に位置するよう離型状態にてモールドキヤビテ
イ４及び５内に配置し、上型と下型とを型合せす
ることにより短繊維成形体の領域３を突部１４及
び１５の間にて圧縮し、その状態にて湯道１１を
経て加圧室６及びモールドキヤビテイ４，５内へ
湯温750℃のアルミニウム合金（JIS規格AC8A）
の溶湯を導入し、該溶湯を加圧プランジヤ９によ
り1000Kg／cm2の圧力にて加圧し、その加圧状態を
溶湯が完全に凝固するまで保持した。溶湯が完全
に凝固した後上型を下型より離型し、下型よりノ
ツクアウトピン１２及びノツクアウトプランジヤ
１０により凝固体を取出し、該凝固体に対し機械
加工を行つて、第３図に示されている如く長さ25
mm、幅25mm、厚さ４mmの薄肉部１６と、該薄肉部
と一体をなす厚さ15mmの厚肉部１７とよりる板状
の繊維強化複合材料１８を製造した。 Next, after preheating the short fiber molded body to 300° C., the short fiber molded body is placed in the mold cavities 4 and 5 in a released state so that the region 3 is located between the protrusions 14 and 15, By fitting the upper mold and the lower mold, the region 3 of the short fiber molded product is compressed between the protrusions 14 and 15, and in this state, it is passed through the runner 11 to the pressurizing chamber 6 and the mold cavity 4. , 5 Aluminum alloy with hot water temperature of 750℃ (JIS standard AC8A)
molten metal was introduced, and the molten metal was pressurized at a pressure of 1000 Kg/cm 2 by the pressurizing plunger 9, and the pressurized state was maintained until the molten metal completely solidified. After the molten metal has completely solidified, the upper mold is released from the lower mold, and the solidified material is taken out from the lower mold using the knockout pin 12 and the knockout plunger 10, and the solidified material is machined. Length 25 as shown
A plate-shaped fiber-reinforced composite material 18 was produced which consisted of a thin part 16 with a width of 25 mm and a thickness of 4 mm, and a thick part 17 with a thickness of 15 mm that was integral with the thin part.
かくして製造された複合材料の断面を顕微鏡に
て観察したところ、突部１４及び１５の間及びそ
の周囲にて鋳造された部分に於てもアルミナ短繊
維の配向の乱れは認められなかつた。また薄肉部
１６のアルミナ短繊維の体積率は18.7％であり、
厚肉部１７のアルミナ短繊維の体積率５％よりも
遥かに高い値に増大していることが認められた。 When the cross section of the thus produced composite material was observed under a microscope, no disturbance in the orientation of the short alumina fibers was observed even in the portions cast between and around the protrusions 14 and 15. In addition, the volume fraction of alumina short fibers in the thin wall portion 16 is 18.7%,
It was observed that the volume fraction of short alumina fibers in the thick portion 17 had increased to a much higher value than 5%.
比較の目的で、HFによるシリカ溶解処理が行
われなかつた点を除き上述の実施例と同一の要領
にて板状の複合材料を製造し、該複合材料の断面
を顕微鏡にて観察したところ、薄肉部と厚肉部と
の間の境界部に短繊維成形体の割れに起因してア
ルミナ短繊維にて複合強化されていない部分が存
在しており、また薄肉部のアルミナ短繊維の配向
状態が大きく乱れていることが認められた。 For the purpose of comparison, a plate-shaped composite material was manufactured in the same manner as in the above example except that the silica dissolution treatment with HF was not performed, and the cross section of the composite material was observed under a microscope. At the boundary between the thin-walled part and the thick-walled part, there is a part that is not compositely reinforced with alumina short fibers due to cracks in the short-fiber molded body, and the orientation state of the alumina short fibers in the thin-walled part is It was observed that the area was greatly disturbed.
実施例 ２
バインダとしてコロイダルジルコニアを使用し
て上述の実施例１に於て使用されたアルミナ短繊
維と同一のアルミナ短繊維１９を吸引成形し、コ
ロイダルジルコニアを乾燥させることにより、ジ
ルコニアにて互いに結合されたアルミナ短繊維よ
りなり、100×100×30mmの寸法を有し繊維体積率
が７％である成形体２０を形成した。次いで第４
図に於てハツチングが施された直径30mmの領域２
１にH2SO4を滴下し、ジルコニアをH2SO4にて
溶解することによりこれを軟化させ、これにより
領域２１のみが自由に変形可能な短繊維成形体２
２を形成した。Example 2 Using colloidal zirconia as a binder, alumina short fibers 19, which are the same as the alumina short fibers used in Example 1 above, are suction-molded, and the colloidal zirconia is dried to bond them together with zirconia. A molded body 20 was formed from the alumina short fibers having dimensions of 100 x 100 x 30 mm and a fiber volume percentage of 7%. Then the fourth
Area 2 with a diameter of 30mm hatched in the figure
H 2 SO 4 is added dropwise to 1, and the zirconia is softened by dissolving it in H 2 SO 4 , thereby forming a short fiber molded body 2 in which only the region 21 can be freely deformed.
2 was formed.
次いで短繊維成形体２２を第５図に示されてい
る如く台座板２３上に配置し、しかる後領域２１
を直径30mmの加圧パンチ２４により圧縮し、その
状態にて短繊維成形体２２を800℃に加圧するこ
とによりアルミナ短繊維１９に付着していた
H2SO4を蒸発させ、これにより第６図に示され
ている如く中央に直径30mm、深さ20mmの窪み２５
を有し、窪みの底壁を郭定する部分及び他の部分
のアルミナ短繊維の体積率がそれぞれ21％、７％
である短繊維成形体２６を形成した。 Next, the short fiber molded body 22 is placed on the base plate 23 as shown in FIG.
was compressed using a pressure punch 24 with a diameter of 30 mm, and in that state, the short fiber molded body 22 was pressurized to 800°C, thereby adhering to the alumina short fibers 19.
The H 2 SO 4 is evaporated, which creates a depression 25 with a diameter of 30 mm and a depth of 20 mm in the center as shown in Figure 6.
The volume percentage of alumina short fibers in the part defining the bottom wall of the depression and in other parts is 21% and 7%, respectively.
A short fiber molded body 26 was formed.
実施例 ３
バインダとしてコロイダルクロミアを使用して
繊維長３〜５mm、繊維径２〜3μのアルミナ−シ
リカ短繊維（イソライト・バブコツク耐火株式会
社製「カオウール」）吸引成形し、コロイダルク
ロミアを乾燥させることにより、クロミアにて互
に結合されたアルミナ−シリカ短繊維よりなり、
100×100×30mmの寸法を有し繊維体積率が10％で
ある成形体を形成した。次いで成形体の中央の直
径30mmの領域に30％H3PO4−HClO4溶液を滴下
し、クロミアを該溶液にて溶解することによりこ
れを軟化させ、これにより前記領域のみが自由に
変形可能な短繊維成形体を形成した。Example 3 Using colloidal chromia as a binder, suction-molding alumina-silica short fibers (“Kao Wool” manufactured by Isolite Babkotsuku Fireproof Co., Ltd.) with a fiber length of 3 to 5 mm and a fiber diameter of 2 to 3 μm, and drying the colloidal chromia. It consists of alumina-silica short fibers bonded together with chromia,
A molded body with dimensions of 100 x 100 x 30 mm and a fiber volume fraction of 10% was formed. Next, a 30% H 3 PO 4 -HClO 4 solution was dropped into a 30 mm diameter area at the center of the molded body, and the chromia was dissolved in the solution to soften it, so that only the area could be freely deformed. A short fiber molded body was formed.
次いで短繊維成形体の前記領域を実施例２の場
合と同一の要領にて圧縮し、その状態にて短繊維
成形体を800℃に加熱することによりアルミナ−
シリカ短繊維に付着していた溶液を蒸発させ、こ
れにより中央に直径30mm、深さ15mmの窪みを有
し、該窪みの底壁を郭定する部分及び他の部分の
アルミナ−シリカ短繊維の体積率がそれぞれ20
％、10％である短繊維成形体を形成した。 Next, the region of the short fiber molded body is compressed in the same manner as in Example 2, and in this state, the short fiber molded body is heated to 800°C to form alumina.
The solution adhering to the silica short fibers is evaporated, and a recess with a diameter of 30 mm and a depth of 15 mm is formed in the center, and the alumina-silica short fibers in the part defining the bottom wall of the recess and other parts are removed. Volume ratio is 20 each
%, 10% short fiber molded bodies were formed.
尚上述の実施例２及び３に於て形成された窪み
を有する何れの短繊維成形体に於ても、圧縮加工
に伴う割れは発生しておらず、また窪みの底壁を
郭定する部分及びその周辺部の於ても短繊維の配
向は良好な状態にあることが認められた。これに
対しH2SO4溶液等にてバインダを溶解させる処
理が行われなかつた点を除き実施例２及び３の場
合と同一の要領にて短繊維成形体を形成し、該短
繊維成形体に対し圧縮加工を行つたところ、圧縮
部及びその周辺部に於て脆性破壊及び短繊維の配
向の乱れが生じていることが認められた。 In addition, in any of the short fiber molded bodies having the depressions formed in Examples 2 and 3 above, no cracking occurred due to compression processing, and the portion defining the bottom wall of the depression did not occur. It was also observed that the orientation of the short fibers was in good condition also in the surrounding area. On the other hand, a short fiber molded body was formed in the same manner as in Examples 2 and 3 except that the process of dissolving the binder with H 2 SO 4 solution etc. was not performed, and the short fiber molded body was When the material was subjected to compression processing, brittle fracture and disordered short fiber orientation were observed in the compressed area and its surrounding areas.
以上に於ては本発明を幾つかの実施例について
詳細に説明したが、本発明はこれらの実施例に限
定されるものではなく、本発明の範囲内にて種々
の実施例が可能であることは当業者にとつて明ら
かであろう。 Although the present invention has been described above in detail with reference to several embodiments, the present invention is not limited to these embodiments, and various embodiments are possible within the scope of the present invention. This will be clear to those skilled in the art.
第１図はシリカにて互いに結合されたアルミナ
短繊維よりなる成形体を示す斜視図、第２図は第
１図に示された成形体を用いて板状の複合材料を
製造するための加圧鋳造装置を一部切欠いて示す
斜視図、第３図は第１図に示された成形体及び第
２図に示された加圧鋳造装置を用いて製造された
板状の複合材料を示す斜視図、第４図はジルコニ
アにて互に結合されたアルミナ短繊維よりなる成
形体を示す斜視図、第５図は中央部のみが自由に
変形可能な短繊維成形体を示す断面図、第６図は
第５図に示された短繊維成形体に対する圧縮加工
工程を示す断面図である。
１……アルミナ短繊維、２……成形体、４，５
……モールドキヤビテイ、６……加圧室、７……
上型、８……下型、９……加圧プランジヤ、１０
……ノツクアウトプランジヤ、１１……湯道、１
２……ノツクアウトピン、１３……加圧鋳造装
置、１４，１５……突部、１６……薄肉部、１７
……厚肉部、１８……繊維強化複合材料、１９…
…アルミナ短繊維、２０……成形体、２２……短
繊維成形体、２３……台座板、２４……加圧パン
チ、２５……窪み、２６……短繊維成形体。
Fig. 1 is a perspective view showing a molded body made of short alumina fibers bonded together with silica, and Fig. 2 shows processing for manufacturing a plate-shaped composite material using the molded body shown in Fig. 1. FIG. 3 is a partially cutaway perspective view of the pressure casting device; FIG. 3 shows a plate-shaped composite material manufactured using the molded body shown in FIG. 1 and the pressure casting device shown in FIG. 2; 4 is a perspective view showing a molded body made of alumina staple fibers bonded to each other with zirconia; FIG. FIG. 6 is a cross-sectional view showing a compression process for the short fiber molded article shown in FIG. 5. 1... Alumina short fiber, 2... Molded body, 4, 5
...Mold cavity, 6...Pressure chamber, 7...
Upper mold, 8... Lower mold, 9... Pressure plunger, 10
... Knockout plunger, 11 ... Yudou, 1
2...Knockout pin, 13...Pressure casting device, 14, 15...Protrusion, 16...Thin wall part, 17
...Thick wall part, 18...Fiber reinforced composite material, 19...
... Alumina short fiber, 20 ... Molded object, 22 ... Short fiber molded object, 23 ... Pedestal plate, 24 ... Pressure punch, 25 ... Hollow, 26 ... Short fiber molded object.
Claims (1)
る複合材料製造用短繊維成形体にして、特定の部
分のみが自由に変形可能であることを特徴とする
複合材料製造用短繊維成形体。 ２ 複合材料製造用短繊維成形体の製造方法にし
て、特定の溶液に溶解するバインダにて結合され
た多数の短繊維によりなる成形体を形成し、前記
成形体の特定の部分を前記溶液にて処理すること
を特徴とする複合材料製造用短繊維成形体の製造
方法。[Scope of Claims] 1. A short fiber molded article for composite material production consisting of a large number of short fibers bound together with a binder, characterized in that only a specific portion is freely deformable. Short fiber molded body. 2. A method for producing a short fiber molded body for producing a composite material, in which a molded body made of a large number of short fibers bonded with a binder that dissolves in a specific solution is formed, and a specific portion of the molded body is immersed in the solution. 1. A method for producing a short fiber molded article for producing a composite material, the method comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP657585A JPS61166933A (en) | 1985-01-17 | 1985-01-17 | Short fiber molding for producing composite material and production thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP657585A JPS61166933A (en) | 1985-01-17 | 1985-01-17 | Short fiber molding for producing composite material and production thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61166933A JPS61166933A (en) | 1986-07-28 |
| JPH0555578B2 true JPH0555578B2 (en) | 1993-08-17 |
Family
ID=11642126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP657585A Granted JPS61166933A (en) | 1985-01-17 | 1985-01-17 | Short fiber molding for producing composite material and production thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61166933A (en) |
-
1985
- 1985-01-17 JP JP657585A patent/JPS61166933A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61166933A (en) | 1986-07-28 |
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