JPH04214074A - Production of carbon fiber reinforced carbon material - Google Patents
Production of carbon fiber reinforced carbon materialInfo
- Publication number
- JPH04214074A JPH04214074A JP2410433A JP41043390A JPH04214074A JP H04214074 A JPH04214074 A JP H04214074A JP 2410433 A JP2410433 A JP 2410433A JP 41043390 A JP41043390 A JP 41043390A JP H04214074 A JPH04214074 A JP H04214074A
- Authority
- JP
- Japan
- Prior art keywords
- carbon
- carbon fiber
- molded body
- thermosetting resin
- fiber reinforced
- 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
- 229920000049 Carbon (fiber) Polymers 0.000 title claims abstract description 37
- 239000004917 carbon fiber Substances 0.000 title claims abstract description 37
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 30
- 239000003575 carbonaceous material Substances 0.000 title claims abstract description 20
- 238000004519 manufacturing process Methods 0.000 title claims description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 28
- 238000001513 hot isostatic pressing Methods 0.000 claims abstract description 22
- 229920005989 resin Polymers 0.000 claims abstract description 21
- 239000011347 resin Substances 0.000 claims abstract description 21
- 229920001187 thermosetting polymer Polymers 0.000 claims abstract description 17
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 9
- 239000001257 hydrogen Substances 0.000 claims abstract description 9
- 238000001354 calcination Methods 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims description 24
- 239000002131 composite material Substances 0.000 claims description 13
- 229910052799 carbon Inorganic materials 0.000 claims description 10
- 239000002421 finishing Substances 0.000 claims description 2
- 229910002804 graphite Inorganic materials 0.000 abstract description 18
- 239000010439 graphite Substances 0.000 abstract description 18
- 229910003481 amorphous carbon Inorganic materials 0.000 abstract description 8
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 238000010304 firing Methods 0.000 description 11
- 239000011203 carbon fibre reinforced carbon Substances 0.000 description 10
- 239000007789 gas Substances 0.000 description 7
- 229930195733 hydrocarbon Natural products 0.000 description 5
- 150000002430 hydrocarbons Chemical class 0.000 description 5
- 238000005470 impregnation Methods 0.000 description 5
- 229920001568 phenolic resin Polymers 0.000 description 5
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 4
- 239000013078 crystal Substances 0.000 description 4
- HSFWRNGVRCDJHI-UHFFFAOYSA-N Acetylene Chemical compound C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 2
- 238000010000 carbonizing Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 229910021397 glassy carbon Inorganic materials 0.000 description 2
- 238000005087 graphitization Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229920002239 polyacrylonitrile Polymers 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000002759 woven fabric Substances 0.000 description 2
- -1 CH4 and C2H2 Chemical class 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 239000002194 amorphous carbon material Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000010574 gas phase reaction Methods 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
Abstract
Description
【０００１】0001
【産業上の利用分野】本発明は、自動車及び航空機のブ
レーキディスク並びに超高速航空機のノーズコーン等に
使用される高密度、高強度及び軽量の炭素繊維強化炭素
材の製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a high-density, high-strength and lightweight carbon fiber-reinforced carbon material used for brake discs of automobiles and aircraft, nose cones of ultra-high-speed aircraft, and the like.
【０００２】0002
【従来の技術】従来、炭素繊維強化炭素材は以下に示す
方法により製造されている。BACKGROUND OF THE INVENTION Conventionally, carbon fiber reinforced carbon materials have been manufactured by the following method.
【０００３】先ず、炭素繊維（カーボンファイバー）の
織布又は不織布に熱硬化性樹脂を含浸させた後、これを
焼成する。そして、この含浸及び焼成工程を１乃至２回
繰り返す。次いで、ピッチ含浸及び焼成の工程を１乃至
３回繰り返す。これにより、熱硬化性樹脂及びピッチが
炭素化して、炭素質が炭素繊維に付着する。その後、黒
鉛化処理を施す。これにより、炭素繊維強化炭素材を得
ることができる。First, a woven or nonwoven carbon fiber fabric is impregnated with a thermosetting resin and then fired. This impregnation and firing process is then repeated once or twice. The pitch impregnation and firing steps are then repeated one to three times. As a result, the thermosetting resin and pitch are carbonized, and carbonaceous matter is attached to the carbon fibers. After that, graphitization treatment is performed. Thereby, a carbon fiber reinforced carbon material can be obtained.
【０００４】また、以下に示す方法により製造すること
もできる。[0004] It can also be produced by the method shown below.
【０００５】先ず、炭素繊維の織布又は不織布に熱硬化
性樹脂を含浸させた後、これを焼成する。この含浸及び
焼成工程は１又は２回実施する。その後、ＣＶＤ（Ｃｈ
ｅｍｉｃａｌＶａｐｏｒ Ｄｅｐｏｓｉｔｉｏｎ ）法
により、炭素繊維間に黒鉛質を堆積させる。これにより
、炭素繊維強化炭素材を得ることができる。First, a woven or nonwoven carbon fiber fabric is impregnated with a thermosetting resin and then fired. This impregnation and firing step is carried out once or twice. After that, CVD (Ch
Graphite is deposited between the carbon fibers by the chemical vapor deposition method. Thereby, a carbon fiber reinforced carbon material can be obtained.
【０００６】[0006]
【発明が解決しようとする課題】しかしながら、上述し
た従来の炭素繊維強化炭素材の製造方法には以下に示す
問題点がある。[Problems to be Solved by the Invention] However, the above-described conventional method for producing carbon fiber reinforced carbon materials has the following problems.
【０００７】前者の方法においては、熱処理時に発生す
るガスにより組織がポーラスな状態になる。従って、密
度を向上させるためには、樹脂及びピッチを含浸させた
後夫々焼成する工程を２乃至３回繰り返す必要がある。
このため、この方法においては、製造コストが高くなる
という欠点がある。なお、炭素繊維の織布又は不織布に
熱硬化性樹脂又はピッチを含浸させ、次にこの樹脂又は
ピッチを炭化させた後、ＨＩＰ装置を使用してＨＩＰ処
理を施すことにより、含浸及び焼成工程のサイクル数を
低減すると共に高密度化を達成しようとする試みもある
。しかし、この方法においては、後工程における黒鉛化
処理時に炭素繊維強化炭素材の組織がポーラスになり、
達成可能な密度（かさ密度）は高々 １．５乃至１．６
ｇ／ｃｍ３ と低い。In the former method, the structure becomes porous due to gas generated during heat treatment. Therefore, in order to improve the density, it is necessary to repeat the process of impregnating resin and pitch and then firing each process two to three times. Therefore, this method has the disadvantage of increasing manufacturing costs. Note that the impregnation and firing process can be completed by impregnating a carbon fiber woven or nonwoven fabric with a thermosetting resin or pitch, then carbonizing the resin or pitch, and then performing HIP treatment using a HIP device. There are also attempts to achieve higher densities while reducing the number of cycles. However, in this method, the structure of the carbon fiber reinforced carbon material becomes porous during the graphitization treatment in the subsequent process.
The achievable density (bulk density) is at most 1.5 to 1.6
As low as g/cm3.
【０００８】一方、後者の方法においては、ＣＶＤ法に
より黒鉛質を堆積させるため処理時間が長い。また、Ｃ
ＶＤ処理中に反応性ガスの濃度勾配が生じるため、細気
孔部に黒鉛質が堆積されず、高密度の炭素繊維強化炭素
材を得ることができないという問題点がある。On the other hand, in the latter method, since graphite is deposited by CVD, the processing time is long. Also, C
Since a concentration gradient of the reactive gas occurs during the VD treatment, there is a problem in that graphite is not deposited in the pores, making it impossible to obtain a high-density carbon fiber-reinforced carbon material.
【０００９】本発明はかかる問題点に鑑みてなされたも
のであって、密度が高い炭素繊維強化炭素材を製造する
ことができると共に製造コストが低い炭素繊維強化炭素
材の製造方法を提供することを目的とする。The present invention has been made in view of the above problems, and an object of the present invention is to provide a method for producing a carbon fiber reinforced carbon material that can produce a carbon fiber reinforced carbon material with high density and at a low production cost. With the goal.
【００１０】0010
【課題を解決するための手段】本発明に係る炭素繊維強
化炭素材の製造方法は、熱硬化性樹脂及び炭素繊維によ
り構成された成形体を予備焼成し、水素が残存する状態
でこれを終了する工程と、この予備焼成品を熱間静水圧
加圧処理する工程とを有することを特徴とする。[Means for Solving the Problems] A method for producing a carbon fiber-reinforced carbon material according to the present invention involves preliminarily firing a molded body made of a thermosetting resin and carbon fibers, and finishing the molded body in a state in which hydrogen remains. and a step of subjecting the pre-fired product to hot isostatic pressing.
【００１１】[0011]
【作用】例えば、フェノールホルムアルデヒド樹脂を炭
化焼成して得たアモルファスカーボンを熱間静水圧加圧
（ＨＩＰ）装置で処理すると、高密度なアモルファスカ
ーボン材を得ることができる（特開平１−２４０７１
）。このとき、アモルファスカーボン成形体の残留水素
濃度及び板厚を適正に制御し、このアモルファスカーボ
ン成形体に対して適正な条件でＨＩＰ処理を施すと、成
形体内部に黒鉛相が析出する（特願昭６３−２０３０３
２ ）。即ち、ＨＩＰ処理中に成形体内部で発生したＨ
２ が炭素をエッチングして、その結果ＣＨ４ 及びＣ
２ Ｈ２ 等の炭化水素が生成される。そして、これら
の炭化水素により微小気孔内に黒鉛が析出して、成形体
の内部に黒鉛相が生成される。[Operation] For example, if amorphous carbon obtained by carbonizing and firing phenol formaldehyde resin is treated with a hot isostatic pressing (HIP) device, a high-density amorphous carbon material can be obtained (Japanese Patent Application Laid-Open No. 1-24071
). At this time, if the residual hydrogen concentration and plate thickness of the amorphous carbon molded body are properly controlled and the amorphous carbon molded body is subjected to HIP treatment under appropriate conditions, a graphite phase will precipitate inside the molded body (patent application Showa 63-20303
2). That is, the H generated inside the molded body during the HIP process
2 etches carbon, resulting in CH4 and C
Hydrocarbons such as 2 H2 are produced. Graphite is precipitated within the micropores by these hydrocarbons, and a graphite phase is generated inside the molded body.
【００１２】そこで、本発明においては、先ず、熱硬化
性樹脂及び炭素繊維により構成された成形体を予備焼成
する。これにより、熱硬化性樹脂がアモルファスカーボ
ンになり、アモルファスカーボン内に炭素繊維が埋め込
まれた構造の成形体を得ることができる。なお、予備焼
成は、次工程のＨＩＰ処理においてＨ２ ガスが発生す
るように、成形体内部に水素が残存する状態で終了する
。
次に、この成形体に対してＨＩＰ処理を施す。そうする
と、成形体内部にＨ２ ガスが発生し、このＨ２ガスが
炭素をエッチングしてＣＨ４及びＣ２ Ｈ２ 等の炭化
水素が生成される。そして、この炭化水素により、炭素
繊維の周囲に黒鉛が析出する。このようにして、成形体
の内部に炭素繊維及び炭素の複合材（即ち、炭素繊維強
化炭素材；以下、Ｃ／Ｃコンポジット材という）が形成
される。Therefore, in the present invention, first, a molded body made of a thermosetting resin and carbon fibers is preliminarily fired. As a result, the thermosetting resin becomes amorphous carbon, and a molded article having a structure in which carbon fibers are embedded in the amorphous carbon can be obtained. Note that the preliminary firing ends with hydrogen remaining inside the compact so that H2 gas is generated in the next HIP process. Next, this molded body is subjected to HIP treatment. Then, H2 gas is generated inside the molded body, and this H2 gas etches carbon to generate hydrocarbons such as CH4 and C2 H2. This hydrocarbon causes graphite to precipitate around the carbon fibers. In this way, a composite material of carbon fibers and carbon (ie, a carbon fiber reinforced carbon material; hereinafter referred to as a C/C composite material) is formed inside the molded body.
【００１３】つまり、本発明においては、従来ＣＶＤ装
置を使用して炭素繊維間に黒鉛質を堆積させている処理
を、ＣＶＤ装置を使用せずに、成形体内部において成形
体自体から発生したガスを利用して実施する。これによ
り、ＨＩＰ処理による緻密化効果と相俟って、従来に比
して高密度及び高強度のＣ／Ｃコンポジット材を得るこ
とができる。また、工程数が少なく、製造コストを低減
することができる。In other words, in the present invention, the process of depositing graphite between carbon fibers using a conventional CVD device can be replaced with a process in which the gas generated from the compact itself inside the compact is replaced without using a CVD device. Implemented using. This, together with the densification effect of the HIP process, makes it possible to obtain a C/C composite material with higher density and higher strength than before. Furthermore, the number of steps is small, and manufacturing costs can be reduced.
【００１４】なお、ＨＩＰ処理における加熱温度は２０
００乃至３０００℃、加圧力は１０００乃至３０００気
圧であることが好ましい。これにより、ガラス状炭素に
囲まれた状態で大形状の高配向性黒鉛結晶が成形体内部
に析出する。[0014] The heating temperature in the HIP treatment is 20
It is preferable that the temperature is 00 to 3000°C and the applied pressure is 1000 to 3000 atm. As a result, large highly oriented graphite crystals are precipitated inside the compact while being surrounded by glassy carbon.
【００１５】[0015]
【実施例】次に、本発明の実施例について添付の図面を
参照して説明する。Embodiments Next, embodiments of the present invention will be described with reference to the accompanying drawings.
【００１６】図１（ａ）及び（ｂ）は本発明の実施例方
法を工程順に示す模式的断面図である。FIGS. 1(a) and 1(b) are schematic sectional views showing the method according to the present invention in the order of steps.
【００１７】先ず、図１（ａ）に示すように、炭素繊維
１に液状の熱硬化性樹脂を含浸させ、炭素繊維１が熱硬
化性樹脂からなる表面部２に囲まれた形状に成形する。
次に、この成形体を予備焼成して、熱硬化性樹脂をアモ
ルファスカーボンに変換する。First, as shown in FIG. 1(a), a carbon fiber 1 is impregnated with a liquid thermosetting resin and formed into a shape in which the carbon fiber 1 is surrounded by a surface portion 2 made of a thermosetting resin. . Next, this molded body is prefired to convert the thermosetting resin into amorphous carbon.
【００１８】この場合に、予備焼成温度は水素ガスの発
生が終了する温度以下であることが必要である。予備焼
成温度がこの温度を超える場合は、残留水素濃度が低過
ぎて次工程でＨＩＰ処理を行なっても黒鉛結晶の析出が
生じない。一方、予備焼成温度が低過ぎると、ＨＩＰ処
理において、黒鉛結晶相を取り込むガラス状炭素相が脆
弱になり、大形状の黒鉛結晶を製造することができない
。このため、予備焼成は、例えば残留水素濃度が５０乃
至５０００ｐｐｍ の範囲になる温度で実施する。[0018] In this case, the pre-firing temperature needs to be below the temperature at which hydrogen gas generation ends. If the pre-calcination temperature exceeds this temperature, the residual hydrogen concentration will be so low that graphite crystals will not precipitate even if HIP treatment is performed in the next step. On the other hand, if the pre-calcination temperature is too low, the glassy carbon phase that incorporates the graphite crystal phase becomes brittle in the HIP treatment, making it impossible to produce large-sized graphite crystals. For this reason, the preliminary firing is performed at a temperature such that the residual hydrogen concentration is in the range of 50 to 5000 ppm, for example.
【００１９】次いで、この成形体に対してＨＩＰ処理を
施す。このＨＩＰ処理は、温度が２０００乃至３０００
℃、加圧力が１０００乃至３０００気圧の条件で実施す
る。そうすると、図１（ｂ）に示すように、炭素繊維１
に黒鉛が付着して、Ｃ／Ｃコンポジット材３が形成され
る。このコンポジット材３は、表面部２を切り開くこと
により、容易に取り出すことができる。Next, this molded body is subjected to HIP treatment. This HIP treatment is performed at a temperature of 2000 to 3000.
The test is carried out at a temperature of 1,000 to 3,000 atmospheres. Then, as shown in FIG. 1(b), the carbon fiber 1
Graphite adheres to the C/C composite material 3. This composite material 3 can be easily taken out by cutting open the surface portion 2.
【００２０】次に、本実施例方法により、実際にＣ／Ｃ
コンポジット材を製造した結果について説明する。Next, using the method of this embodiment, the C/C
The results of manufacturing the composite material will be explained.
【００２１】ＰＡＮ（ポリアクリロニトル）系炭素繊維
の織布に液状のフェノールホルムアルデヒド樹脂を含浸
させ、この樹脂を ２００℃の温度で２４時間かけて乾
燥させた。この樹脂の含浸及び乾燥工程を３回繰り返し
て、成形体のかさ密度を１．１２ｇ／ｃｍ３ まで増加
させた。次いで、この成形体の全表面を粉状のフェノー
ルホルムアルデヒド樹脂で被覆し、その後ホットプレス
加工を施して、炭素繊維をフェノールホルムアルデヒド
樹脂で取り囲んだ構造の成形体を得た。A PAN (polyacrylonitrile) carbon fiber woven fabric was impregnated with liquid phenol formaldehyde resin, and this resin was dried at a temperature of 200° C. for 24 hours. This resin impregnation and drying process was repeated three times to increase the bulk density of the molded article to 1.12 g/cm@3. Next, the entire surface of this molded body was coated with powdered phenol formaldehyde resin, and then hot pressing was performed to obtain a molded body having a structure in which carbon fibers were surrounded by phenol formaldehyde resin.
【００２２】次に、この成形体を不活性ガス中で１００
０℃の温度で焼成して、フェノールホルムアルデヒド樹
脂をアモルファスカーボンに変換した。Next, this molded body was heated in an inert gas for 100 min.
The phenol formaldehyde resin was converted into amorphous carbon by firing at a temperature of 0°C.
【００２３】次いで、この成形体を熱間静水圧加圧装置
を使用して、２４５０℃の温度で２０００気圧の条件で
ＨＩＰ処理を施した。このＨＩＰ処理においては、成形
体の内部にＣＨ４ が発生する。そして、このＣＨ４
の気相反応により黒鉛が析出する。この黒鉛が炭素繊維
に付着してＣ／Ｃコンポジット材が生成される。[0023] Next, this molded body was subjected to HIP treatment at a temperature of 2450°C and a pressure of 2000 atm using a hot isostatic pressing device. In this HIP treatment, CH4 is generated inside the molded body. And this CH4
Graphite is precipitated by the gas phase reaction. This graphite adheres to carbon fibers to produce a C/C composite material.
【００２４】この成形体の内部に生成されたＣ／Ｃコン
ポジット材は、成形体の表面部分に切り込みを入れると
、容易に取り出すことができる。このようにして、高密
度及び高強度のＣ／Ｃコンポジット材を得ることができ
る。[0024] The C/C composite material produced inside the molded body can be easily taken out by making an incision in the surface portion of the molded body. In this way, a C/C composite material with high density and high strength can be obtained.
【００２５】なお、上述の如く成形体の内部で黒鉛相を
析出させるためには、ＨＩＰ処理前の残留水素量、成形
体の板厚及びＨＩＰ処理条件を適正に設定する必要があ
る。残留水素量は、予備焼成温度に依存する。[0025] In order to precipitate the graphite phase inside the molded body as described above, it is necessary to appropriately set the amount of residual hydrogen before the HIP treatment, the plate thickness of the molded body, and the HIP treatment conditions. The amount of residual hydrogen depends on the pre-calcination temperature.
【００２６】このようにして得たＣ／Ｃコンポジット材
の物理特性を下記表１に示す。The physical properties of the C/C composite material thus obtained are shown in Table 1 below.
【００２７】[0027]
【表１】
この表１から明らかなように、本実施例方法により
製造したＣ／Ｃコンポジット材は気孔率が小さく、かさ
密度が高く、曲げ強度が極めて高い。[Table 1] As is clear from Table 1, the C/C composite material manufactured by the method of this example has a small porosity, a high bulk density, and an extremely high bending strength.
【００２８】[0028]
【発明の効果】以上説明したように本発明によれば熱硬
化性樹脂及び炭素繊維により構成された成形体を予備焼
成した後、この予備焼成品に対して熱間静水圧加圧処理
を施すから、成形体内部で発生したＨ２ ガスが炭素を
エッチングして、ＣＨ４ 及びＣ２ Ｈ２ 等の炭化水
素が生成され、微小気孔内に黒鉛が析出して炭素繊維強
化炭素材を得ることができる。このようにして製造した
炭素繊維強化炭素材は、従来に比して密度が高い。また
、工程数が少ないため、製造コストを低減できるという
効果もある。[Effects of the Invention] As explained above, according to the present invention, after a molded body made of a thermosetting resin and carbon fiber is pre-fired, the pre-fired product is subjected to a hot isostatic pressing treatment. The H2 gas generated inside the compact etches the carbon, producing hydrocarbons such as CH4 and C2H2, and graphite is precipitated in the micropores to obtain a carbon fiber-reinforced carbon material. The carbon fiber-reinforced carbon material manufactured in this manner has a higher density than conventional carbon materials. Furthermore, since the number of steps is small, manufacturing costs can be reduced.
【図１】図１の（ａ）及び（ｂ）は本発明の実施例方法
を工程順に示す模式的断面図である。FIGS. 1A and 1B are schematic cross-sectional views showing an example method of the present invention in the order of steps.
１；炭素繊維 ２；表面部 ３；コンポジット材 1; Carbon fiber 2; Surface part 3; Composite material
Claims (3)
された成形体を予備焼成し水素が残存する状態でこれを
終了する工程と、この予備焼成品を熱間静水圧加圧処理
する工程とを有することを特徴とする炭素繊維強化炭素
材の製造方法。Claim 1: A step of pre-calcining a molded body made of a thermosetting resin and carbon fibers and finishing the process in a state where hydrogen remains; and a step of subjecting the pre-fired product to hot isostatic pressing. A method for producing a carbon fiber-reinforced carbon material, comprising:
０００乃至３０００℃、圧力が１０００乃至３０００気
圧の条件で実施することを特徴とする請求項１に記載の
炭素繊維強化炭素材の製造方法。2. The hot isostatic pressure treatment is performed at a temperature of 2.
2. The method for producing a carbon fiber reinforced carbon material according to claim 1, wherein the method is carried out at a temperature of 000 to 3000°C and a pressure of 1000 to 3000 atmospheres.
と炭素繊維との複合体が占め、その表面部を熱硬化性樹
脂が占めていることを特徴とする請求項１又は２に記載
の炭素繊維強化炭素材の製造方法。3. The molded body according to claim 1 or 2, wherein an interior of the molded body is occupied by a composite of a thermosetting resin and carbon fibers, and a surface portion of the molded body is occupied by a thermosetting resin. A method for producing a carbon fiber reinforced carbon material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2410433A JPH04214074A (en) | 1990-12-12 | 1990-12-12 | Production of carbon fiber reinforced carbon material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2410433A JPH04214074A (en) | 1990-12-12 | 1990-12-12 | Production of carbon fiber reinforced carbon material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04214074A true JPH04214074A (en) | 1992-08-05 |
Family
ID=18519601
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2410433A Pending JPH04214074A (en) | 1990-12-12 | 1990-12-12 | Production of carbon fiber reinforced carbon material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04214074A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111779782A (en) * | 2020-07-20 | 2020-10-16 | 杭州安耐特实业有限公司 | High-stability friction-resistant brake pad and production process thereof |
-
1990
- 1990-12-12 JP JP2410433A patent/JPH04214074A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111779782A (en) * | 2020-07-20 | 2020-10-16 | 杭州安耐特实业有限公司 | High-stability friction-resistant brake pad and production process thereof |
| CN111779782B (en) * | 2020-07-20 | 2021-10-01 | 杭州安耐特实业有限公司 | High-stability friction-resistant brake pad and production process thereof |
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