JPH01239062A - Production of carbon composite material - Google Patents
Production of carbon composite materialInfo
- Publication number
- JPH01239062A JPH01239062A JP63066554A JP6655488A JPH01239062A JP H01239062 A JPH01239062 A JP H01239062A JP 63066554 A JP63066554 A JP 63066554A JP 6655488 A JP6655488 A JP 6655488A JP H01239062 A JPH01239062 A JP H01239062A
- Authority
- JP
- Japan
- Prior art keywords
- aggregate
- fraction
- boiling point
- fibers
- sheet
- 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
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 32
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 31
- 239000002131 composite material Substances 0.000 title claims abstract description 22
- 238000004519 manufacturing process Methods 0.000 title claims description 20
- 238000009835 boiling Methods 0.000 claims abstract description 10
- 239000000203 mixture Substances 0.000 claims abstract description 10
- 238000000465 moulding Methods 0.000 claims abstract description 10
- 239000000126 substance Substances 0.000 claims abstract description 10
- 239000011259 mixed solution Substances 0.000 claims abstract description 9
- 239000000835 fiber Substances 0.000 claims abstract description 8
- 229920000049 Carbon (fiber) Polymers 0.000 claims abstract description 6
- 239000004917 carbon fiber Substances 0.000 claims abstract description 6
- 239000003245 coal Substances 0.000 claims abstract description 5
- 239000003208 petroleum Substances 0.000 claims abstract description 5
- 150000002484 inorganic compounds Chemical class 0.000 claims abstract description 4
- 229910010272 inorganic material Inorganic materials 0.000 claims abstract description 4
- 238000003763 carbonization Methods 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 15
- 239000000843 powder Substances 0.000 claims description 11
- 239000007788 liquid Substances 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 6
- 239000005011 phenolic resin Substances 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 230000004927 fusion Effects 0.000 claims description 2
- 229920000620 organic polymer Polymers 0.000 claims description 2
- 239000007790 solid phase Substances 0.000 claims description 2
- 239000012467 final product Substances 0.000 abstract description 5
- 238000003756 stirring Methods 0.000 abstract description 3
- 238000010000 carbonizing Methods 0.000 abstract description 2
- 238000002156 mixing Methods 0.000 abstract description 2
- 238000004508 fractional distillation Methods 0.000 abstract 2
- 229920000914 Metallic fiber Polymers 0.000 abstract 1
- 238000010030 laminating Methods 0.000 abstract 1
- 238000010304 firing Methods 0.000 description 21
- 239000011159 matrix material Substances 0.000 description 12
- 239000002994 raw material Substances 0.000 description 10
- 239000011295 pitch Substances 0.000 description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 7
- 238000005470 impregnation Methods 0.000 description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 5
- 210000000988 bone and bone Anatomy 0.000 description 4
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 3
- 210000002196 fr. b Anatomy 0.000 description 3
- 210000003918 fraction a Anatomy 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 3
- 229920001568 phenolic resin Polymers 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 229910001018 Cast iron Inorganic materials 0.000 description 2
- 239000000571 coke Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000011339 hard pitch Substances 0.000 description 2
- 239000012071 phase Substances 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 239000012615 aggregate Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 235000011894 couscous Nutrition 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000001723 curing Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000011208 reinforced composite material Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/71—Ceramic products containing macroscopic reinforcing agents
- C04B35/78—Ceramic products containing macroscopic reinforcing agents containing non-metallic materials
- C04B35/80—Fibres, filaments, whiskers, platelets, or the like
- C04B35/83—Carbon fibres in a carbon matrix
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、炭素複合１１４の製造方法に係わり、特に
、自動車、航空□、各種産業０械等のブレーキ材料とし
て適当な炭素複合材料の！！１造方法に関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a method for manufacturing carbon composite 114, and in particular, to a carbon composite material suitable as a brake material for automobiles, aviation, various industrial machines, etc. ! Regarding the 1-making method.
（従来の技術〕
代表的な炭素複合材料としては、骨材として炭素繊維を
用い、マトリックス原料として樹脂もしくはピッチを用
いた炭素ｉ維強化炭素複合材料がある。炭木繊維強化炭
素複合材斜は、従来、自動車、航空機、各種産業機械等
のブレーキ材料として使用されてＪ５す、その優れた特
性から各種分野への応用が期待されている。その炭素Ｓ
維強化炭素複合材料の製造方法としては、第２図に示す
ように、炭素４１１Ｉｉにマトリックス原料、主として
フェノール樹脂を含浸させたのち、成型、硬化および炭
化焼成を行ない、次にビッヂを含浸させて炭化させる工
程を複数回繰り返し、最後に粗加工および仕上げ加工を
施して最終製品とする方法が代表的なものである。(Prior art) Typical carbon composite materials include carbon fiber-reinforced carbon composite materials that use carbon fiber as an aggregate and resin or pitch as a matrix material. Carbon S
As shown in Figure 2, the method for producing fiber-reinforced carbon composite materials involves impregnating carbon 411Ii with a matrix raw material, mainly phenolic resin, followed by molding, curing, and carbonization firing, and then impregnating it with bidi. A typical method is to repeat the carbonization process multiple times, and finally perform rough processing and finishing to produce the final product.
また、特開昭６０−５４９７４号公報および特開昭６１
−２１９７３号公報では、自己焼結性コークスをマトリ
ックス原料とすることにより、上記ピッチ含浸および炭
化焼成工程を省略することができるとしている。Also, JP-A-60-54974 and JP-A-61
Publication No. 21973 states that by using self-sintering coke as the matrix raw material, the pitch impregnation and carbonization and firing steps can be omitted.
（発明が解決しようとする課題〕
しかしながら、第２図に関して説明した製造方法では製
造工程が多く、特に製品の密度を高めるために一次焼成
後に繰り返し行なうビッヂ含浸工程およびその後の炭化
焼成工程が大きな負担となってコストが高くなる。さら
に、−回焼成したのち再びピッチを含浸させて炭化する
工程を繰り返すノこめに、焼成前に最終製品の形状に成
型することができず、焼成後に切削加工を施す必要があ
る。(Problem to be Solved by the Invention) However, the manufacturing method explained with reference to FIG. 2 involves many manufacturing steps, and in particular, the bit impregnation step that is repeated after the primary firing to increase the density of the product and the subsequent carbonization firing step are a heavy burden. Furthermore, since the process of impregnating pitch and carbonizing it after firing twice is repeated, it is not possible to shape the final product into the shape of the final product before firing, and cutting work is required after firing. It is necessary to apply
また、一般の自動車用ディスクブレーキなどのブレーキ
材料として用いる場合には、通常、価格の点からディス
クは鋳鉄製なので炭素繊維強化複合材料と鋳鉄との摩擦
特性が問題となるが、前記製造方法による炭素４１Ｈ強
化炭素複合材料は、低温でのＩ！ｊａ係数が比較的低く
、さらに摩擦係数が不安定な場合があるという欠点があ
る。炭素、１維強化炭素複合材料に鉄粉および銅粉を添
加づることによって摩擦係数が改善されることは知られ
ているが、この場合には、銅粉をマトリックス中に均一
に分散させることが難しい。In addition, when used as a brake material for general automobile disc brakes, etc., the discs are usually made of cast iron due to cost considerations, so friction characteristics between the carbon fiber reinforced composite material and cast iron become an issue. Carbon-41H-reinforced carbon composite materials exhibit I! The disadvantage is that the ja coefficient is relatively low and the friction coefficient may be unstable. It is known that the coefficient of friction can be improved by adding iron powder and copper powder to carbon, single-fiber reinforced carbon composite materials, but in this case, it is difficult to uniformly disperse the copper powder in the matrix. difficult.
特開昭６０−５４９７４号公報および特開昭６１−２１
９７３号公報に記載された方法は、自己焼結性コークス
を原料とすることにより前記製造方法におけるピッチ含
浸および炭化焼成工程を省略することができるとしてい
るが、高温での成型工程Ｊ′３よび複雑な形状、例えば
プレーキディスクパッ１〜、への加工工程に問題が残る
。JP-A-60-54974 and JP-A-61-21
The method described in Japanese Patent No. 973 claims that by using self-sintering coke as a raw material, the pitch impregnation and carbonization firing steps in the above manufacturing method can be omitted, but the high-temperature molding steps J'3 and Problems remain in the processing process for complex shapes, such as the brake disk pads 1 to 1.
この発明は、上記事情に鑑み、−次焼成後のピッチ含浸
および炭化焼成を行なうことなく高密度の炭素複合材料
を製造することが可能であり、かつ骨材、特に粉枕骨材
を均一に分散させることが可能な炭素複合材料の製造方
法を提供することを目的とげる。In view of the above circumstances, the present invention makes it possible to produce a high-density carbon composite material without performing pitch impregnation and carbonization firing after secondary firing, and also enables uniform dispersion of aggregate, especially powder aggregate. The purpose of this invention is to provide a method for manufacturing carbon composite materials that can
〔課題を解決するための手段）
この発明による炭素複合材料の製造方法は、石炭系すし
くは石油系タールから分留した沸点２００〜５５０℃の
留分（以下留分Ａと記述）および沸点５００℃以上の留
分（以下留分Ｂと記述）の混合液に母相を添加し、熱処
理して骨材表面にピッチ状物質を付着させ、その後混合
液とピッチ状物質が付着した骨材とを分離し、このピッ
チ状物質が付着した骨材をシート状に成型し、青られ７
ｊシートを熱処理することによって軽質分を除去して不
融化し、このシートをｇｉ層した後所定形状に成型し、
この成型体をピッチ状物質の炭化処理に供するものであ
る。[Means for Solving the Problems] The method for producing a carbon composite material according to the present invention comprises using a fraction having a boiling point of 200 to 550°C (hereinafter referred to as fraction A) fractionated from coal-based soot or petroleum-based tar; A parent phase is added to a mixed liquid of a fraction of 500°C or higher (hereinafter referred to as fraction B), heat-treated to adhere pitch-like substances to the surface of the aggregate, and then aggregates to which the mixed liquid and pitch-like substances have adhered. The aggregate with this pitch-like substance attached is formed into a sheet shape,
J sheet is heat-treated to remove light components and made infusible, and this sheet is formed into a predetermined shape after forming a gi layer,
This molded body is subjected to carbonization treatment of pitch-like material.
以下、この発明による炭素複合材料の製造方法を詳細に
説明する。Hereinafter, the method for manufacturing a carbon composite material according to the present invention will be explained in detail.
まず、石炭系もしくは石油系タールから分留した沸点２
００〜５５０℃の留分（留分Ａ）および沸点５００℃以
上の留分（留分Ｂ）の混合液を調製する。First, boiling point 2 fractionated from coal-based or petroleum-based tar
A mixed solution of a fraction having a temperature of 00 to 550°C (Fraction A) and a fraction having a boiling point of 500°C or higher (Fraction B) is prepared.
ここで留分Ａと留分Ｂの混合割合は１０：１〜１：１０
であり、好ましくは１０：３である。また、この混合液
に、さらにフェノール樹脂を添加することもでき、この
場合のフェノール樹脂の市は混合液全体に対して５〜２
５重量％である。Here, the mixing ratio of fraction A and fraction B is 10:1 to 1:10.
and preferably 10:3. In addition, phenolic resin can be further added to this mixed solution, and in this case, the amount of phenolic resin is 5 to 2% of the total mixed solution.
It is 5% by weight.
この混合液に骨材を添加し、骨材が均一に分散するよう
に攪拌しながら熱処理をする。ここで使用する骨材は、
繊維状骨材もしくは繊維状骨材と粉状骨材との混合物で
ある。繊維状骨材としては、例えば、炭素繊維、金ｆ１
繊維、無機化合物繊維、固相炭化する有機高分子ａ雑、
炭素ウィスカーおよびそれらの混合物があり、炭素繊維
が特に好ましい。粉状骨材としては、例えば、金属粉、
無償化合物粉、炭素粉およびそれらの晶合吻があり、鉄
粉および銅粉が特に好ましい。また、熱処理はピッチ状
物質が骨相の表面を濡らして骨材の気孔に浸入するよう
な条件の下で行ない、通常、２００〜５００″Ｃで、０
．５〜５時間行なう。Aggregates are added to this mixed solution, and the mixture is heat-treated while stirring so that the aggregates are uniformly dispersed. The aggregate used here is
It is fibrous aggregate or a mixture of fibrous aggregate and powdered aggregate. Examples of fibrous aggregate include carbon fiber, gold f1
Fibers, inorganic compound fibers, organic polymers that undergo solid phase carbonization,
Carbon whiskers and mixtures thereof are included, with carbon fibers being particularly preferred. Examples of powdered aggregate include metal powder,
There are free compound powders, carbon powders and their crystallizations, and iron powders and copper powders are particularly preferred. In addition, heat treatment is carried out under conditions such that the pitch-like substance wets the surface of the bone phase and penetrates into the pores of the aggregate, usually at 200 to 500''C and 0.
．． Do this for 5-5 hours.
熱処理を終えた混合物は、ピッチ状物質が骨材に必要の
伺肴づる温度まで冷Ｗし、その温度を保ったままでろ過
して骨ｌをタールの照温成分の混合液から分離する。こ
の温度は通常１０〜２００℃である。After the heat treatment, the mixture is cooled down to a temperature at which the pitch-like substance is suitable for the aggregate, and filtered while maintaining that temperature to separate the bones from the mixed liquid of the warm components of tar. This temperature is usually 10-200°C.
ろ過してタールの照温成分から分離した骨材は、圧延等
の手段によりシート状にし、その後不融化層る。不融化
は、この分野で通常行なわれる方法、例えば、不活性雰
囲気中で熱処理して軽質分を留去Ｊることによりなされ
る。必要であれば、こののち空気中で加熱する等の方法
で酸化してざらに不融化し、シートの融着性を調整する
ことができる。The aggregate, which has been filtered and separated from the warm components of the tar, is made into a sheet by rolling or other means, and then formed into an infusible layer. The infusibility is achieved by a method commonly used in this field, for example, by heat treatment in an inert atmosphere and distilling off light components. If necessary, the sheet can be oxidized to become roughly infusible by heating in air or the like to adjust the fusion properties of the sheet.
最後に、この不敵化したシートを最終製品の形状に成型
し、炭化焼成して焼成体とする。シートの成型は、シー
トをそのままもしく（よ積層し、打抜き成型をづるかも
しくはシートを過当な大きさに裁断して型に入れて成型
づることで容易に行なうことができる。成型体の炭化焼
成は、この分野にｄ３いて通常なされている方法で行な
うことができ、一般に、１０〜５００ Ｋｇｆ ／ ｃ
ｍ ２の加圧下において、５００〜１０００℃で、０．
５〜２時間焼成することにより行なう。必要であれば、
この−次焼成体をひらに高温で焼成することも可能であ
る。Finally, this invincible sheet is molded into the shape of the final product and carbonized and fired to produce a fired product. Forming of the sheet can be easily done by stacking the sheet as it is, then punching it, or cutting the sheet to an excessive size and placing it in a mold and molding it. Carbonization of the molded body Firing can be carried out by a method commonly used in this field, and is generally 10 to 500 Kgf/c.
m 2 at 500-1000°C under pressure of 0.
This is done by baking for 5 to 2 hours. If necessary,
It is also possible to sinter this secondary sintered body at a high temperature.
この発明の製造方法においては、炭素マトリックス原料
としてタールの蒸留成分を使用する。このタールの蒸留
成分は炭化収率が高い。また、マトリックス原料を液体
の形態で骨材と混合するためマトリックス原料が骨ｌの
気孔中にまで入り込み、ントリックス原料と骨材の接着
性が良くなる。In the production method of the present invention, a distilled component of tar is used as the carbon matrix raw material. The distilled component of this tar has a high carbonization yield. Furthermore, since the matrix raw material is mixed with the aggregate in a liquid form, the matrix raw material penetrates into the pores of the bone l, improving the adhesion between the matrix raw material and the aggregate.
さらに、マトリックス原料を不融化したのちに成型１．
焼成を行なうためにマトリックス原料の流失かない。し
たがって、焼成体の密度を高めることができる。Furthermore, after making the matrix raw material infusible, molding 1.
Matrix raw materials are not washed away during firing. Therefore, the density of the fired body can be increased.
また、母材として４Ｉ維状骨材と粉状骨材との混合物を
使用した場合には、これらを液層中で混合させるため均
一に分散させることがでさ、ざらに７トリツクス原料に
３＝１する骨Ｈの充填率が高まって焼成体の密度が高め
ることができる。In addition, when a mixture of 4I fibrous aggregate and powdered aggregate is used as the base material, it is possible to mix them in a liquid layer so that they are uniformly dispersed. = 1, the filling rate of the bone H increases, and the density of the fired body can be increased.
また、この発明の製造方法においては、骨材とマトリッ
クス材の混合物をシート状にしたのち成型ｄ３よび焼成
を行なうために作業性が良い。Further, in the manufacturing method of the present invention, the mixture of aggregate and matrix material is formed into a sheet shape, and then the molding d3 and firing are performed, so that workability is good.
きうに、この発明の製造方法にＪ３いては、炭化焼成の
市に成型体を！終製品の形状に成型することができるの
で、焼成後に切削笠の大幅な加工をづる必要がない。Today, J3 uses the manufacturing method of this invention to produce a molded body in the carbonization firing market! Since it can be molded into the shape of the finished product, there is no need for extensive processing of the cut cap after firing.
（実施例〕
実施例１
Ｆ、Ｆ、油１００小吊部と硬ピッチ２０１伍部の混合液
にクレカチ」ツブＣ−１２５Ｔ （ｆ２＝２５ＦＭ）
３！Ｔ！帛部、コークス粉２中示部および銅粉６小吊
部を添加し、攪拌しながら４５０℃で２時間熱処理した
。熱処理終了後、１５０℃まで冷却し、この温度を保ち
ながらろ過して混合液と骨材を分離し、得られノｃ骨材
を直ちに鉄板の間に挟んで加圧しながら冷却してシート
状にした。これを不活性雰囲気下において２００℃で減
圧乾燥したのち、空気中において昇温速度１℃／分で２
５０℃まで昇温し、この温度で２時間保持して不融化し
た。この不融化したシートから１００Ｘ １００ ｒｔ
ｒｔｒの試料片を裁断し、荷重下において５００℃で焼
成して炭化したのち、加圧せずに昇温速度６℃／時で１
０００″Ｃまで昇温した。これによって得られた炭素複
合材料の性状を試験し、結果を第１表に記載した。なお
、表中の摩擦係数は！鉄に対する値である。(Example) Example 1 F, F, oil 100 small hanging part and hard pitch 2015 part mixed liquid "Tsubu C-125T" (f2 = 25FM)
3! T! A cloth, a middle part of coke powder 2, and a small part of copper powder 6 were added, and the mixture was heat-treated at 450° C. for 2 hours while stirring. After the heat treatment is completed, the mixture is cooled to 150℃, filtered while maintaining this temperature to separate the mixed liquid and aggregate, and the resulting aggregate is immediately sandwiched between iron plates and cooled under pressure to form a sheet. did. This was dried under reduced pressure at 200°C in an inert atmosphere, and then placed in air at a heating rate of 1°C/min.
The temperature was raised to 50° C. and maintained at this temperature for 2 hours to make it infusible. From this infusible sheet, 100X 100 rt
RTR sample pieces were cut, carbonized by firing at 500°C under load, and then heated at a heating rate of 6°C/hour without applying pressure.
The properties of the carbon composite material thus obtained were tested and the results are shown in Table 1. The friction coefficients in the table are values for iron.
比較例１
クレカチョップＣ−１２５Ｔ ３蛋Ｅ部、」−クス粉２
重聞部、銅粉６重０部および硬ピッチ６車良部をオムニ
ミキサーで混合し、高温成形はを用いて８００℃で成型
したのち、１（１００”ｃで炭化焼成を行なった。得ら
れた焼成体の性状の試験を行ない、結果を第１表に併記
した。Comparative Example 1 Kureka Chop C-125T 3 parts E part, - Couscous flour 2
The heavy weight part, 6 parts of copper powder, and 6 parts of hard pitch 6 parts were mixed in an omni mixer, molded at 800°C using a high-temperature molding machine, and then carbonized and fired at 1 (100"c). The properties of the fired bodies were tested, and the results are also listed in Table 1.
第 １ 表
第１表から明らかなように、比較例１で得られた炭素複
合材料はピッチ含浸および炭化焼成工程を省略したため
に密度が不十分であるのに対して、この発明の方法によ
る炭素複合材料はピッチ含浸および炭化焼成を繰り返さ
なくとも充分な密度を得ることができる。Table 1 As is clear from Table 1, the carbon composite material obtained in Comparative Example 1 had insufficient density because the pitch impregnation and carbonization firing steps were omitted, whereas the carbon composite material obtained by the method of the present invention had insufficient density. The composite material can obtain sufficient density without repeating pitch impregnation and carbonization firing.
（効果〕
以上のように、この発明の製造方法によると、成型体の
炭化焼成後にさらにピッチ含浸および炭化焼成を行なう
ことなく高密度の炭素複合材料を装造Ｊることが可能で
あり、また骨材、特に粉状母材をマトリックス原料中に
均一に分散させることができ、さらに作業性も良いうえ
に炭化焼成後の加工もほとんど不要になる。(Effects) As described above, according to the manufacturing method of the present invention, it is possible to fabricate a high-density carbon composite material without further performing pitch impregnation and carbonization firing after carbonization firing of a molded body, and also Aggregates, especially powdered base materials, can be uniformly dispersed in the matrix raw material, and workability is also good, and processing after carbonization and firing is almost unnecessary.
第１図はこの発明の炭素複合材料の製造方法に係る一具
体例を示す工程図であり、第２図は従来の炭素１繊維強
化炭素複合材料の製造方法に係る一具体例を示す工程図
である。FIG. 1 is a process diagram showing a specific example of the method of manufacturing a carbon composite material of the present invention, and FIG. 2 is a process diagram showing a specific example of the conventional method of manufacturing a carbon 1 fiber-reinforced carbon composite material. It is.
Claims (5)
００〜５５０℃の留分と沸点５００℃以上の留分との混
合液中で骨材を熱処理して骨材表面にピッチ状物質を付
着させた後これを分離し、このピッチ状物質を付着させ
た骨材をシート状に成型し、得られたシートを熱処理す
ることによって軽質分を除去してピッチ状物質を不融化
し、このシートを積層した後所定形状に成型し、この成
型体をピッチ状物質の炭化処理に供することを特徴とす
る炭素複合材料の製造方法。(1) Boiling point 2 fractionated from coal-based or petroleum-based tar
The aggregate is heat-treated in a mixed solution of a fraction with a temperature of 00 to 550°C and a fraction with a boiling point of 500°C or higher to adhere a pitch-like substance to the surface of the aggregate, and then separated. The aggregate is molded into a sheet, the resulting sheet is heat treated to remove light components and infusible the pitch-like material, and the sheets are laminated and molded into a predetermined shape. A method for producing a carbon composite material, which comprises subjecting a pitch-like substance to carbonization treatment.
、固相炭化する有機高分子繊維および炭素ウィスカーか
らなる群から選ばれる繊維状骨材の１種または２種以上
、または該繊維状骨材と金属粉、無機化合物粉および炭
素粉からなる群から選ばれる粉枕骨材の１種または２種
以上の混合物であることを特徴とする請求項１に記載の
製造方法。(2) The aggregate is one or more types of fibrous aggregates selected from the group consisting of carbon fibers, metal fibers, inorganic compounds, fibers, solid-phase carbonized organic polymer fibers, and carbon whiskers, or the fibers. 2. The production method according to claim 1, wherein the method is a mixture of one or more powder aggregates selected from the group consisting of powder aggregates, metal powders, inorganic compound powders, and carbon powders.
化を、型に入れたままもしくは型から取り出して加圧下
で行なうことを特徴とする請求項１に記載の製造方法。(3) The manufacturing method according to claim 1, characterized in that the sheet is molded by die molding, and the carbonization after molding is performed under pressure while the sheet is in the mold or after being removed from the mold.
００〜５５０℃の留分と沸点５００℃以上の留分との混
合液に、さらにフェノール樹脂を添加することを特徴と
する請求項１に記載の製造方法。(4) Boiling point 2 fractionated from coal-based or petroleum-based tar
2. The manufacturing method according to claim 1, further comprising adding a phenol resin to the mixed liquid of the fraction having a temperature of 00 to 550°C and the fraction having a boiling point of 500°C or higher.
を特徴とする請求項１に記載の製造方法。(5) The manufacturing method according to claim 1, characterized in that the sheet is further oxidized to adjust the fusion properties.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63066554A JPH01239062A (en) | 1988-03-18 | 1988-03-18 | Production of carbon composite material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63066554A JPH01239062A (en) | 1988-03-18 | 1988-03-18 | Production of carbon composite material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01239062A true JPH01239062A (en) | 1989-09-25 |
Family
ID=13319250
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63066554A Pending JPH01239062A (en) | 1988-03-18 | 1988-03-18 | Production of carbon composite material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01239062A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02107564A (en) * | 1988-10-17 | 1990-04-19 | Sumitomo Metal Ind Ltd | Production of carbon-metal composite material |
-
1988
- 1988-03-18 JP JP63066554A patent/JPH01239062A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02107564A (en) * | 1988-10-17 | 1990-04-19 | Sumitomo Metal Ind Ltd | Production of carbon-metal composite material |
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