JPH0432798B2 - - Google Patents
Info
- Publication number
- JPH0432798B2 JPH0432798B2 JP61205761A JP20576186A JPH0432798B2 JP H0432798 B2 JPH0432798 B2 JP H0432798B2 JP 61205761 A JP61205761 A JP 61205761A JP 20576186 A JP20576186 A JP 20576186A JP H0432798 B2 JPH0432798 B2 JP H0432798B2
- Authority
- JP
- Japan
- Prior art keywords
- carbon
- carbon plate
- dense
- glassy carbon
- resin
- 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
- 229910021397 glassy carbon Inorganic materials 0.000 claims description 19
- 239000002344 surface layer Substances 0.000 claims description 17
- 239000011347 resin Substances 0.000 claims description 16
- 229920005989 resin Polymers 0.000 claims description 16
- 239000010410 layer Substances 0.000 claims description 11
- 229920001187 thermosetting polymer Polymers 0.000 claims description 9
- 239000000835 fiber Substances 0.000 claims description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 19
- 229910052799 carbon Inorganic materials 0.000 description 18
- 239000003575 carbonaceous material Substances 0.000 description 9
- 239000000463 material Substances 0.000 description 9
- 239000005011 phenolic resin Substances 0.000 description 9
- 239000011148 porous material Substances 0.000 description 9
- 229920003043 Cellulose fiber Polymers 0.000 description 8
- 238000010304 firing Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 229920002678 cellulose Polymers 0.000 description 4
- 239000001913 cellulose Substances 0.000 description 4
- 229920001568 phenolic resin Polymers 0.000 description 4
- 150000001721 carbon Chemical class 0.000 description 3
- 229920000728 polyester Polymers 0.000 description 3
- MYRTYDVEIRVNKP-UHFFFAOYSA-N 1,2-Divinylbenzene Chemical compound C=CC1=CC=CC=C1C=C MYRTYDVEIRVNKP-UHFFFAOYSA-N 0.000 description 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 239000004809 Teflon Substances 0.000 description 2
- 229920006362 Teflon® Polymers 0.000 description 2
- 238000003763 carbonization Methods 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000005470 impregnation Methods 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000010000 carbonizing Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- HDNHWROHHSBKJG-UHFFFAOYSA-N formaldehyde;furan-2-ylmethanol Chemical compound O=C.OCC1=CC=CO1 HDNHWROHHSBKJG-UHFFFAOYSA-N 0.000 description 1
- 239000007849 furan resin Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000011344 liquid material Substances 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000001247 metal acetylides Chemical class 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- -1 phenolic resins Chemical class 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229920006337 unsaturated polyester resin Polymers 0.000 description 1
Description
【発明の詳細な説明】
産業上の利用分野
本発明はガラス状炭素板に関し、更に詳しくは
表面層が緻密なのでその表面を鏡面にすることが
でき、また内部層は多孔質なので全体として軽量
であるガラス状炭素板に関する。この炭素板は表
面を鏡面とすることにより磁気ヘツドの基体に適
用することもできる。[Detailed Description of the Invention] Industrial Application Field The present invention relates to a glassy carbon plate, and more specifically, the surface layer is dense so that the surface can be mirror-finished, and the inner layer is porous so that the whole is lightweight. Regarding a certain glassy carbon plate. This carbon plate can also be applied to the base of a magnetic head by making the surface mirror-finished.
従来の技術
フエノール樹脂等の熱硬化性樹脂を徐々に加熱
して炭化すれば硬度、強度が高く、その破面がガ
ラス状を呈する所謂ガラス状炭素が得られる。BACKGROUND ART If a thermosetting resin such as a phenol resin is gradually heated and carbonized, so-called glassy carbon having high hardness and strength and a glass-like fracture surface can be obtained.
ガラス状炭素はその製造過程における成形体の
加熱の際の収縮やガス抜けが悪い等の為、成形体
に亀裂が入つたり表面に気孔が発生したりし易
い。特に大きいものや厚みのある成形体ではこの
傾向が強く、そのために以前はルツボなど肉薄製
品に限られていた。 Glassy carbon tends to crack or form pores on the surface of the molded product due to shrinkage and poor gas release during heating of the molded product during its manufacturing process. This tendency is particularly strong for large or thick molded objects, and for this reason, it was previously limited to thin-walled products such as crucibles.
近年セルローズの集合物、例えばシートに熱硬
化性樹脂を含浸し、硬化、焼成してガラス状炭素
を得る方法が提案されており、本発明者もいくつ
か出願している（特開昭60−3149、同60−
231470）。セルローズ繊維で強化すれば焼成時の
亀裂はかなり防止できるが緻密な肉厚製品は依然
むずかしい。 In recent years, a method has been proposed in which a cellulose aggregate, such as a sheet, is impregnated with a thermosetting resin, cured, and fired to obtain glassy carbon, and the present inventor has also filed several applications (Japanese Patent Application Laid-Open No. 1983-1993). 3149, 60−
231470). If reinforced with cellulose fibers, cracking during firing can be significantly prevented, but it is still difficult to produce dense, thick-walled products.
またセルローズ繊維は炭化後もある程度繊維の
形が残るので、炭素材料の強度等の向上には望ま
しいが、その材料の表面を鏡面にする為研磨する
と複合材であるため部分的に熱膨脹係数、硬度等
が異なり鏡面になりにくい。 In addition, cellulose fibers retain their fiber shape to some extent even after carbonization, so they are desirable for improving the strength of carbon materials, but when polished to make the surface of the material mirror-like, since it is a composite material, the coefficient of thermal expansion, hardness, etc. etc., and it is difficult to get a mirror surface.
発明が解決しようとする問題点
ガラス状炭素は一般の炭素材料に較べて強度は
大きいので、強度上はある程度多孔質であつて
も、実用上問題がないことも多い。しかし炭素材
料の表面が多孔質だと種々の問題が生ずる。それ
に強度もできるだけ高い方がよい。一般の炭素材
料では表面を緻密に内部を多孔質にしたものは知
られているが、一般の炭素材料は強度が大きくな
いことや、製法上の問題等から殆んど実用化され
ていない。Problems to be Solved by the Invention Glassy carbon has greater strength than general carbon materials, so even if it is porous to some extent, there are often no practical problems in terms of strength. However, if the surface of the carbon material is porous, various problems arise. It is also better to have as high strength as possible. Although it is known that common carbon materials have dense surfaces and porous interiors, these materials are rarely put into practical use due to their lack of strength and problems in manufacturing methods.
本発明者は種々研究した結果、炭素材料は強度
が大きければ、内部は多孔質であつても表面が緻
密であれば、使用上問題がないことが多いこと、
さらにガラス状炭素は強度が大きいので内部が多
孔質であつても、表面層が緻密であれば全体とし
て強度上も問題がないことに着目して本発明に到
達したものである。 As a result of various studies, the present inventor has found that if a carbon material has high strength and has a dense surface even if the inside is porous, there are often no problems in use.
Furthermore, since glassy carbon has high strength, even if the inside is porous, as long as the surface layer is dense, there is no problem in terms of strength as a whole, and the present invention was developed based on this finding.
内部を多孔質とすることにより製法上は焼成の
際のガス抜けが材料の側面（周囲の縁）から円滑
に行われる。また材料が軽量化される効果があ
る。 By making the inside porous, gas can escape smoothly from the sides (surrounding edges) of the material during firing. It also has the effect of reducing the weight of the material.
本発明は先にセルローズ繊維の炭化物で補強し
た炭素板がその両側で、あるいは内部と表面層で
気孔率が異なるものを製造するための特殊の方法
を提案した（特願昭60−207758）。 The present invention has previously proposed a special method for manufacturing a carbon plate reinforced with cellulose fiber carbide with different porosity on both sides or on the inside and surface layer (Japanese Patent Application No. 207758/1986).
この方法による炭素板は表面までセルローズ繊
維の炭化物が含まれているので、表面を鏡面とす
る場合は都合が悪い。 Since the carbon plate produced by this method contains carbide of cellulose fibers up to the surface, it is not convenient to make the surface mirror-finished.
本発明の目的は表面層が緻密で耐食性、潤滑性
が良好であり、摺動部に用いても炭素粉を生ぜ
ず、且つ軽量であること、また肉圧の材料でも良
好な特性をもつた炭素材料を提供することにあり
さらに他の目的は表面が鏡面である炭素材料を提
供することにある。 The purpose of the present invention is to have a dense surface layer with good corrosion resistance and lubricity, not to generate carbon powder even when used in sliding parts, and to be lightweight, and to have good properties even when used as a material with wall pressure. Another object of the present invention is to provide a carbon material having a mirror surface.
問題点を解決するための手段
本発明は上記目的のために全体をガラス状炭素
で構成した。通常の炭素材料では気孔の殆んどな
い緻密なものをつくることはむずかしいこと、摺
動部に使用したとき炭素粉の発生は避けられない
こと、強度や硬度も低い等の問題があるからであ
る。このガラス状炭素から成る炭素板は表面層が
緻密であり内部層は多孔質である。緻密な表面層
は殆んど通気性がなく、気孔も測定できない位わ
ずかである。その破面を観察すればガラス状を呈
している。Means for Solving the Problems The present invention is constructed entirely of glassy carbon for the above purpose. With ordinary carbon materials, there are problems such as it is difficult to make dense materials with almost no pores, the generation of carbon powder is unavoidable when used in sliding parts, and the strength and hardness are low. be. This carbon plate made of glassy carbon has a dense surface layer and a porous inner layer. The dense surface layer has almost no air permeability, and the pores are too small to be measured. If you observe the fractured surface, it has a glass-like appearance.
炭素板の内部層は熱硬化性樹脂と有機繊維の炭
化物であるガラス状炭素である。その気孔の多く
は開気孔であつてガスが通ることが出来る。気孔
は炭素材料の製造の過程において重要な役割を果
しており、この気孔を通してガスが炭素板の中を
板の面に平行に抜けることが出来るので、板の表
面層にガス抜け穴が生じることがない。従つて表
面層を緻密に保つことができる。また内部を多孔
質とすることにより炭素材料を軽量にすることが
できる。本発明によるガラス状炭素は強度も大き
いので内部が多孔質であつても、それが著しくな
い限り通常の用途に対して十分である。一般的に
はこの多孔質層の気孔率は30〜60％が適する。 The inner layer of the carbon plate is glassy carbon, which is a carbide of thermosetting resin and organic fibers. Many of the pores are open pores, allowing gas to pass through. Pores play an important role in the manufacturing process of carbon materials, and gas can pass through the carbon plate parallel to the surface of the plate, so there are no gas escape holes in the surface layer of the plate. . Therefore, the surface layer can be kept dense. Furthermore, by making the inside porous, the weight of the carbon material can be reduced. The glassy carbon according to the present invention has high strength, so even if the inside is porous, it is sufficient for normal uses as long as it is not significant. Generally, the suitable porosity of this porous layer is 30 to 60%.
本発明のガラス状炭素板は用途に応じて薄いも
のから厚いものまでつくることができるが、表面
層を厚くすることはむずかしい。 The glass-like carbon plate of the present invention can be made from thin to thick depending on the application, but it is difficult to make the surface layer thick.
従つて厚い炭素板ならば内部層を厚くすること
になる。表面層の厚さは用途上下限には制限があ
り、また上限は緻密性を保つにはあまり厚くする
ことは出来ない。一般的には表面層の厚さは0.1
〜1.0mmが適する。内部層は0.1mm以上の厚さであ
ることが好ましく、その上限には特に制限はな
い。 Therefore, if the carbon plate is thick, the inner layer will be thick. The thickness of the surface layer has upper and lower limits for use, and the upper limit cannot be made too thick to maintain denseness. Generally, the thickness of the surface layer is 0.1
~1.0mm is suitable. The inner layer preferably has a thickness of 0.1 mm or more, and there is no particular restriction on the upper limit.
本発明においてガラス状炭素を製造するには一
般的にはフエノール樹脂、フラン樹脂、ジビニル
ベンゼン樹脂、エポキシ樹脂、不飽和ポリエステ
ル樹脂等の熱硬化性樹脂が使用される。炭素板の
内部を多孔質にするには有機繊維の集合物、例え
ばシートに上記樹脂の硬化前の液状物を含有さ
せ、これを硬化、焼成する。含浸の量を調整する
ことにより気孔率を変えることが出来る。シート
等に樹脂含浸したものは、、特に含浸量を多くし
ない限り、ある程度の通気性があるので、焼成の
際のガス抜きには支障がない。有機繊維はPAN
系、ポリエステル系、セルローズ系などが使用で
きるが、PAN系やポリエステル系では焼成の際
分解し、大部分は揮散する。セルローズ系繊維は
分解揮散もするが一部は繊維の形状を保つたまま
炭化し、それがフエノール樹脂等の炭化物の中に
存在するので材料を補強する役割をする。 In the present invention, thermosetting resins such as phenolic resins, furan resins, divinylbenzene resins, epoxy resins, and unsaturated polyester resins are generally used to produce glassy carbon. In order to make the inside of a carbon plate porous, an aggregate of organic fibers, for example, a sheet, is made to contain a liquid material of the resin before hardening, and this is hardened and fired. By adjusting the amount of impregnation, the porosity can be varied. A sheet etc. impregnated with resin has a certain degree of air permeability unless the amount of impregnation is particularly large, so there is no problem in degassing during firing. Organic fiber is PAN
Polyester-based, polyester-based, cellulose-based, etc. can be used, but PAN-based and polyester-based materials decompose during firing and most of them volatilize. Although cellulose fibers are decomposed and volatilized, some of them are carbonized while maintaining their fiber shape, and because they exist in carbides such as phenolic resins, they play a role in reinforcing the material.
この意味で有機繊維としてはセルローズ系が望
ましく、具体的な使用方法としては紙、綿布等の
セルローズシートに樹脂を含有し、そのままある
いは必要な厚みになるよう重ね合せて使用する。 In this sense, cellulose-based organic fibers are preferable, and a specific method of use is to contain a resin in a cellulose sheet such as paper or cotton cloth, and use it as it is or by stacking it to a required thickness.
ガラス状炭素板の表面層を緻密にするには熱硬
化性樹脂のみを炭化するか、或いはセルローズ繊
維を含有させる場合は、樹脂を多く繊維に含浸
し、含浸した状態で気孔のないようにして炭化す
る。炭化後に表面を鏡面とした炭素板にするには
セルローズ繊維は使用しないで熱硬化性樹脂のみ
を炭化した方がよい。 To make the surface layer of the glass-like carbon plate dense, only the thermosetting resin is carbonized, or if cellulose fibers are included, the fibers are impregnated with a large amount of resin so that there are no pores in the impregnated state. Carbonize. In order to make a carbon plate with a mirror-like surface after carbonization, it is better to carbonize only the thermosetting resin without using cellulose fibers.
セルローズ繊維は前記のように炭化して残留
し、炭素板の表面研摩のときに複合材を研摩する
ことになり鏡面を得ることが難しい。熱硬化性樹
脂を炭化して緻密な層をつくる一つの方法として
例えばフエノール樹脂等のフイルムあるいはシー
トを炭素板にする前の成形体の表面層にして炭化
する。この炭化物の層は薄いものであれば緻密に
することが出来る。 The cellulose fibers are carbonized and remain as described above, and the composite material must be polished when the surface of the carbon plate is polished, making it difficult to obtain a mirror surface. One method of carbonizing a thermosetting resin to form a dense layer is to carbonize a film or sheet of phenolic resin or the like as a surface layer of a molded body before making it into a carbon plate. This carbide layer can be made dense if it is thin.
本発明のガラス状炭素板は上記の熱硬化性樹脂
を含浸したシートの両側にフエノール樹脂のフイ
ルムあるいはシートを圧着し、樹脂を硬化、焼成
することによつて得ることができる。硬化、焼成
は圧着した成形体を黒鉛板、ステンレス板等で両
側から挟み、加圧したまま行うのが望ましい。焼
成は十分に時間をかけて昇温し、、徐々に行なう
必要がある。 The glass-like carbon plate of the present invention can be obtained by pressing a phenol resin film or sheet onto both sides of the sheet impregnated with the above-mentioned thermosetting resin, and then curing and baking the resin. It is desirable that the hardening and firing be performed while the pressed molded body is sandwiched between graphite plates, stainless steel plates, etc. from both sides and pressurized. It is necessary to raise the temperature over a sufficient period of time and to perform the firing gradually.
ガラス状炭素板を鏡面にするには研摩粒子を液
体に分散させてスラリーとしたものを用いるラツ
ピングなどが利用できる。 In order to make a glass-like carbon plate mirror-like, lapping, which uses a slurry made by dispersing abrasive particles in a liquid, can be used.
鏡面にしたガラス状炭素はこの上にスパツタ、
メツキ等によつて金属等をコーテイングして磁気
デイスク基板に使用することが出来る。 Mirror-finished glassy carbon spatters on top of this.
It can be coated with metal or the like by plating or the like and used as a magnetic disk substrate.
その他本発明のガラス状炭素板は粉末が発生し
ない耐摩耗性材料としてガラス、アルミニウム製
造用滑り板などの用途がある。この場合は特に鏡
面にしなくてもよい。 In addition, the glass-like carbon plate of the present invention is used as a wear-resistant material that does not generate powder, such as sliding plates for manufacturing glass and aluminum. In this case, it is not necessary to make it a mirror surface.
実施例
市販の工業用紙（東洋紙(株)製、No.63）をフ
エノール樹脂（昭和高分子(株)製、BLS 3135、固
形分60％）30重量部にエタノール70重量部を加え
て希釈した液に浸漬し、引上げた後、160℃に５
分乾燥し、樹脂含浸紙とした。Example Commercially available industrial paper (manufactured by Toyo Paper Co., Ltd., No. 63) was diluted by adding 70 parts by weight of ethanol to 30 parts by weight of phenol resin (manufactured by Showa Kobunshi Co., Ltd., BLS 3135, solid content 60%). After being immersed in the solution, heated to 160℃ for 5 minutes.
It was dried for several minutes to obtain resin-impregnated paper.
一方、希釈していない上記フエノール樹脂の液
中にテフロンフイルムを浸し、次いで引き上げ
160℃で５分間乾燥した後、室温に冷却し、テフ
ロンフイルムからフエノール樹脂フイルムを剥し
取つた。樹脂フイルムの厚みは0.3mmであつた。 Meanwhile, a Teflon film was dipped into the undiluted phenolic resin solution, and then pulled out.
After drying at 160°C for 5 minutes, the film was cooled to room temperature and the phenol resin film was peeled off from the Teflon film. The thickness of the resin film was 0.3 mm.
前記した樹脂含浸紙を３枚重ね、さらにその両
側に上記のフエノール樹脂フイルムを配置し、こ
れをステンレス板に挟み、160℃に加熱し、同時
に10Kg／cm2で加圧し、20分間保持した。得られた
成形体は150×150mm、厚さ３mmである。この成形
体を黒鉛板に挟み、非酸化性雰囲気下、３℃／hr
の昇温速度で1000℃にした。得られた炭素板は
100mm×100mm、厚さ２mmである。そして表面の厚
さは0.15mm、従つて内部層は1.7mmとなる。 Three sheets of the above-mentioned resin-impregnated paper were stacked, and the above-mentioned phenol resin film was placed on both sides, and this was sandwiched between stainless steel plates, heated to 160°C, and simultaneously pressurized at 10 kg/cm 2 and held for 20 minutes. The obtained molded body has a size of 150×150 mm and a thickness of 3 mm. This molded body was sandwiched between graphite plates and heated at 3°C/hr in a non-oxidizing atmosphere.
The temperature was raised to 1000℃ at a heating rate of . The obtained carbon plate is
It is 100mm x 100mm and 2mm thick. The surface thickness is 0.15 mm, so the inner layer is 1.7 mm.
表面層の気孔は殆んどなく、内部層は気孔率約
50％であり、全体としての嵩密度は1.2ｇ／cm3で
あつた。 There are almost no pores in the surface layer, and the porosity of the inner layer is approximately
50%, and the overall bulk density was 1.2 g/cm 3 .
またこの炭素板は曲げ強度が900Kg／cm2であり、
その破面は表面がガラス状を呈していた。内部は
表面に較べガラス状の度合は小さいものであつ
た。 In addition, this carbon plate has a bending strength of 900Kg/cm 2 ,
The fractured surface had a glass-like appearance. The interior was less glassy than the surface.
このガラス状炭素板はラツピング研摩の一種で
ある公知のフロートポリツシング法で表面を研摩
した。 The surface of this glassy carbon plate was polished by a known float polishing method, which is a type of wrapping polishing.
このように得られたガラス状炭素板は表面に気
孔の全くない鏡面を呈していた。 The glassy carbon plate thus obtained had a mirror surface with no pores.
比較のため上記フエノールフイルム５枚を重
ね、上記と同様にして炭化してガラス状炭素をつ
くつた。このものは焼成時のガス抜けが成形体の
表面から起こる為、表面にガス抜け穴が多数あ
り、表面層が緻密にならなかつた。 For comparison, five sheets of the above phenol film were stacked and carbonized in the same manner as above to produce glassy carbon. In this product, gas release occurred from the surface of the molded body during firing, so there were many gas release holes on the surface, and the surface layer did not become dense.
尚、このものの嵩比重は1.51ｇ／cm2であつた。 The bulk specific gravity of this product was 1.51 g/cm 2 .
発明の効果
本発明によれば比較的厚みのあるガラス状炭素
でも表面層が緻密であり、また表面を鏡面とする
こともできるので、精密電子部品、磁性材用の基
体など各種の用途が期待できる。そして強度的に
も実用上問題なく、その上軽量なので扱い易い。Effects of the Invention According to the present invention, even relatively thick glassy carbon can have a dense surface layer, and the surface can also be mirror-finished, so it is expected to be used in various applications such as precision electronic parts and substrates for magnetic materials. can. In addition, it has no practical problems in terms of strength and is lightweight, making it easy to handle.
Claims (1)
機繊維の多孔質炭化物であるガラス状炭素板。 ２ 表面が鏡面である特許請求の範囲第１項記載
のガラス状炭素板。[Scope of Claims] 1. A glassy carbon plate having a dense surface layer and an inner layer made of a porous carbide of thermosetting resin and organic fibers. 2. The glassy carbon plate according to claim 1, which has a mirror surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61205761A JPS6364906A (en) | 1986-09-03 | 1986-09-03 | Glassy carbon plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61205761A JPS6364906A (en) | 1986-09-03 | 1986-09-03 | Glassy carbon plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6364906A JPS6364906A (en) | 1988-03-23 |
| JPH0432798B2 true JPH0432798B2 (en) | 1992-06-01 |
Family
ID=16512230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61205761A Granted JPS6364906A (en) | 1986-09-03 | 1986-09-03 | Glassy carbon plate |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6364906A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07220735A (en) * | 1994-01-26 | 1995-08-18 | Nippon Carbon Co Ltd | Carbon paper for fuel cell electrode and manufacture thereof |
| US9428389B2 (en) | 2012-06-15 | 2016-08-30 | Blue Cube Ip Llc | Vitreous carbon composition |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5170207A (en) * | 1974-11-09 | 1976-06-17 | Philips Nv | |
| JPS59174510A (en) * | 1983-03-25 | 1984-10-03 | Mitsubishi Pencil Co Ltd | Manufacture of carbon molded body |
| JPS6020471A (en) * | 1983-07-13 | 1985-02-01 | Mitsubishi Pencil Co Ltd | Manufacture of members for fuel cell |
| JPS61190862A (en) * | 1985-02-19 | 1986-08-25 | Mitsubishi Pencil Co Ltd | Whole carbon component for fuel cell and its manufacture |
-
1986
- 1986-09-03 JP JP61205761A patent/JPS6364906A/en active Granted
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5170207A (en) * | 1974-11-09 | 1976-06-17 | Philips Nv | |
| JPS59174510A (en) * | 1983-03-25 | 1984-10-03 | Mitsubishi Pencil Co Ltd | Manufacture of carbon molded body |
| JPS6020471A (en) * | 1983-07-13 | 1985-02-01 | Mitsubishi Pencil Co Ltd | Manufacture of members for fuel cell |
| JPS61190862A (en) * | 1985-02-19 | 1986-08-25 | Mitsubishi Pencil Co Ltd | Whole carbon component for fuel cell and its manufacture |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6364906A (en) | 1988-03-23 |
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