JPH01314793A - Production of carbon wire - Google Patents
Production of carbon wireInfo
- Publication number
- JPH01314793A JPH01314793A JP63140766A JP14076688A JPH01314793A JP H01314793 A JPH01314793 A JP H01314793A JP 63140766 A JP63140766 A JP 63140766A JP 14076688 A JP14076688 A JP 14076688A JP H01314793 A JPH01314793 A JP H01314793A
- Authority
- JP
- Japan
- Prior art keywords
- fiber bundle
- braid
- resin
- carbon
- carbon fiber
- 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.)
- Granted
Links
- 229910052799 carbon Inorganic materials 0.000 title claims description 21
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims description 19
- 238000004519 manufacturing process Methods 0.000 title claims description 12
- 229920000049 Carbon (fiber) Polymers 0.000 claims abstract description 28
- 239000004917 carbon fiber Substances 0.000 claims abstract description 28
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 24
- 238000000034 method Methods 0.000 claims abstract description 20
- 239000000835 fiber Substances 0.000 claims abstract description 14
- 229920005989 resin Polymers 0.000 claims abstract description 14
- 239000011347 resin Substances 0.000 claims abstract description 14
- 239000007788 liquid Substances 0.000 claims abstract 2
- 238000002844 melting Methods 0.000 claims description 8
- 230000008018 melting Effects 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 7
- 229920005992 thermoplastic resin Polymers 0.000 claims description 3
- 229920001187 thermosetting polymer Polymers 0.000 claims description 3
- 239000007849 furan resin Substances 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 239000005011 phenolic resin Substances 0.000 claims description 2
- 239000000919 ceramic Substances 0.000 claims 1
- 239000002994 raw material Substances 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 7
- 239000003575 carbonaceous material Substances 0.000 description 6
- 239000011230 binding agent Substances 0.000 description 3
- 238000009954 braiding Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000011203 carbon fibre reinforced carbon Substances 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000007429 general method Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000005087 graphitization Methods 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 238000004804 winding Methods 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Composite Materials (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Ropes Or Cables (AREA)
- Carbon And Carbon Compounds (AREA)
- Braiding, Manufacturing Of Bobbin-Net Or Lace, And Manufacturing Of Nets By Knotting (AREA)
- Reinforced Plastic Materials (AREA)
- Moulding By Coating Moulds (AREA)
Abstract
Description
【発明の詳細な説明】
（イ）産業上の利用分野
本発明は、炭素繊維強化炭素材の製造において、特に比
較的小径の棒状あるいは線状の強化材の成形方法に関す
るものである。DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a method for manufacturing carbon fiber-reinforced carbon materials, and particularly to a method for molding rod-shaped or linear reinforcing materials with relatively small diameters.
（ロ）背景技術
上記した成形方法についての従来の技術と問題点につい
て、直径２ｍｍで長さ２００ｍｍの棒状炭素ｍ維強化炭
素材の製造例により説明する。(b) Background Art The conventional techniques and problems associated with the above-mentioned forming method will be explained using an example of manufacturing a rod-shaped carbon fiber-reinforced carbon material having a diameter of 2 mm and a length of 200 mm.
かかる炭素材の一般的な製造方法としては、炭素繊維束
にバインダーとして熱硬化性樹脂を含浸させて成形、乾
燥し、これを上記した寸法の溝をもつ金型に入れて１５
０℃に加熱し、約３０ＭＰａの加圧下で硬化させる。更
に、この成形品をＮ２ガス中で６００℃まで昇温した後
、昇温速度を変えてｉ ｏ ｏ ｏ ’ｃ以上に加熱強
化するものであり、特に緻密化が必要なものについては
再度樹脂を塗リ、１０００℃で加熱する処理が繰返され
る。A general method for manufacturing such a carbon material is to impregnate a carbon fiber bundle with a thermosetting resin as a binder, mold it, dry it, put it into a mold with grooves of the above dimensions, and then press
It is heated to 0° C. and cured under a pressure of about 30 MPa. Furthermore, after heating this molded product to 600°C in N2 gas, it is heated and strengthened to above I o o o 'c by changing the heating rate, and especially for those that require densification, the resin is heated again. The process of coating and heating at 1000°C is repeated.
上記の如く、従来は成形硬化の手段に型中での加圧・加
熱法が行われて来たが、この方法では長い線材を成形す
ることは非常に困難である。As mentioned above, conventionally, pressurization and heating in a mold have been used as a means of molding and hardening, but it is extremely difficult to mold long wires using this method.
（ハ）発明の開示
炭素繊＃炭素複合材は人工衛星用材料例えばロケットノ
ズルなどに用いられるときには、その組織の高密度化が
当然に要求よれるが、一般のＴ業分野において高温材料
として使われる場合には、金属の短所である小さい高温
強度を炭素製材で置き換えようとするものであって、そ
れ程の高密度化は要求されず、その用途は広い。(C) Disclosure of the Invention When carbon fiber/carbon composite materials are used in materials for artificial satellites, such as rocket nozzles, they are naturally required to have a highly dense structure, but they are also used as high-temperature materials in the general T industry field. In this case, carbon lumber is used to replace the low high-temperature strength that metal has, and does not require high density, and its uses are wide.
本発明は、高温域での強度、特に引っ張り強さが通常の
耐熱合金では得られない１２００’Ｃ以−Ｆの温度で１
０ Ｋｇ／ ｍｍ２以上の炭素繊維強化炭素材を得るた
めの製造方法を提供するものである。The present invention has a strength in the high temperature range, especially a tensile strength of 1 at temperatures above 1200'C and -F, which cannot be obtained with ordinary heat-resistant alloys.
The present invention provides a manufacturing method for obtaining a carbon fiber reinforced carbon material of 0 Kg/mm2 or more.
本発明において使用される炭素繊維は、市販されている
１０００〜３ｏｏｏ℃の高温下で引っ張り強さが１００
〜５ｏｏＫｇ／■２のも（７）−ｔ’、バインダーとし
ては熱可塑性樹脂例えばピ、ンチや熱硬化性樹脂例えば
フェノール樹脂、フラン樹脂などを用途に応じて選定す
る。The carbon fiber used in the present invention is commercially available and has a tensile strength of 100 at a high temperature of 1000 to 300°C.
~5ooKg/■2 (7)-t' As the binder, a thermoplastic resin such as pinch or a thermosetting resin such as a phenol resin or a furan resin is selected depending on the purpose.
本発明法は、先ず線径に必要な本数の炭素繊維を束にし
、これに溶解又は溶融した樹脂を含浸させて線状ブリー
フオームの炭素繊維束を作り、この線状プリフォームを
芯としてこの上に糸を組み合わせて組ひもを作り、この
組ひもで線状プリフォームの炭素繊維束を外周から締付
けて硬化成形し、バインダーの種類に応じた熱処理を施
すことを牛シ徴とするものである。The method of the present invention involves first bundling the required number of carbon fibers for the wire diameter, melting or impregnating this with molten resin to create a linear brief-ohm carbon fiber bundle, and using this linear preform as a core. The method is to combine threads on top to make a braid, tighten the carbon fiber bundle of the linear preform from the outer periphery with this braid, harden it, and then heat treat it according to the type of binder. be.
これまでの成形では、前記した如く炭素繊維束を主とし
て金型などに入れて加圧下で昇温保持しているが、金型
を用いた加圧では本発明の目的である長い寸法の線は製
造が困難であり、この発明の方法とは全く異るところで
ある。In conventional molding, as mentioned above, carbon fiber bundles are mainly placed in a mold and held at elevated temperature under pressure. This method is difficult to manufacture and is completely different from the method of the present invention.
本発明では、炭素繊維束に樹脂を含浸した後、これに含
まれている空気や余分な樹脂を押し出すために、組ひも
機で炭素繊維束上に組ひもを作り、炭素Ｒ維束を外周か
ら締め付けるようにした新規な加工法を提案するもので
、この紹ひもは引っ張り力を炭素Ｓ維束の外周から中心
に向って圧縮する力に変換し、しかもこの方法は連続的
に実施できる特徴がある。In the present invention, after the carbon fiber bundle is impregnated with resin, a braid is made on the carbon fiber bundle using a braiding machine in order to push out the air and excess resin contained in the carbon fiber bundle, and the carbon R fiber bundle is wrapped around the outer periphery. We propose a new processing method that tightens the carbon S fibers from the outer periphery to the center. There is.
本発明の組ひもを用いた方法は、上記した如く圧縮力を
得る以外の効用を得ることもできる。即ち、得られる棒
状或は線状の炭素＃Ｉｌ維強化材の使用目的、例えばそ
れが高温度で使用するベルトコンベアー材料として使用
されるときなどには、組ひもの材質を適当に選定して、
熱処理後に溶解。The method using the braid of the present invention can also obtain effects other than obtaining compressive force as described above. That is, depending on the purpose of use of the obtained rod-shaped or linear carbon #Il fiber reinforcement, for example, when it is used as a belt conveyor material used at high temperatures, the material of the braid should be appropriately selected. ,
Dissolves after heat treatment.
溶融又は燃焼などにより組ひもを除去することもできる
大きな特徴を持つものである。It has the great feature that the braid can be removed by melting or burning.
（ニ）実施例
本発明方法の一実施例として、炭素繊維強化炭素材によ
るメツシュベルト用線材コイルの製造方法を添付図面を
参照して説明する。(D) Example As an example of the method of the present invention, a method for manufacturing a wire coil for a mesh belt using a carbon fiber-reinforced carbon material will be described with reference to the accompanying drawings.
原料炭素繊維の１２０００本よりなる束の６束を合せた
炭素繊維束２をリールｌにセットシ、これを２４０℃で
溶融した樹脂溶融槽３中を通し、線材コイル成形機７で
巻取るように設置した。A carbon fiber bundle 2 consisting of six bundles of 12,000 raw carbon fibers is set on a reel L, passed through a resin melting tank 3 melted at 240°C, and wound up by a wire coil forming machine 7. installed.
上記溶融槽３には熱可塑性樹脂であるピッチを上記した
温度の２４０°Ｃで溶融した。核種３より引上げられた
ピッチ含浸炭素繊維束２の周囲を組ひも原料糸リール４
から１順次に繰り出よれるガラス繊維で組ひも状に締付
け、内包されている空気と余分のピッチが絞り出された
組ひも締付は炭素［Ｉ東５を加熱炉６中で３ｏｏ℃で不
融化処理し、線材コイリング成形機７の扁平楕円の断面
を持つ巻取り枠に等間隔に巻付け、これを冷却して炭素
線材コイルを製作した。In the melting tank 3, pitch, which is a thermoplastic resin, was melted at the above temperature of 240°C. A raw material yarn reel 4 is braided around the pitch-impregnated carbon fiber bundle 2 pulled up from the nuclide 3.
The glass fibers drawn out one after another are tightened in the form of a braid, and the enclosed air and excess pitch are squeezed out. The carbon wire coil was treated to be infusible and wound at equal intervals around a winding frame having a flat elliptical cross section of the wire coiling forming machine 7, and then cooled to produce a carbon wire coil.
該コイル８とに記と同方法で製作した炭素繊維直線線材
のロッドとをメツシュベルトに組み、６ｏｏ０ｃ、１０
００ ’（！を経て２５００℃に窒素雰囲気中で加熱し
て、高温用メツシュベルトを製造した。The coil 8 and a rod of carbon fiber straight wire produced in the same manner as described above were assembled into a mesh belt, and 6oo0c, 10
00' (!) and then heated to 2500° C. in a nitrogen atmosphere to produce a high-temperature mesh belt.
（ホ）発明の効果
以−トの如く、本発明は成形しようとする炭素繊維束を
使用目的に応じた材質の組ひもで締め付け、連続的に炭
素繊維強化炭素線材を製造することができるのである。(E) Effects of the Invention As described above, the present invention can continuously produce carbon fiber-reinforced carbon wire rods by tightening the carbon fiber bundle to be formed with a braid made of a material depending on the purpose of use. be.
また、木９．明法は線材の使用目的により、組ひもで成
形したまま必要な温度で焼成して使用することもでき、
また高温度で用いる場合には組ひもの材質として使用温
度以下の融点のものを選ぶことにより、炭素繊維束の炭
素化又は黒鉛化の過程で組ひもを除去し、高温高強度の
炭素系線材が製造できる効果を有するものである。Also, tree 9. Depending on the intended use of the wire, Meiho can be used by firing it at the required temperature while still forming it into a braid.
In addition, when using at high temperatures, by selecting a material for the braid with a melting point below the operating temperature, the braid can be removed during the carbonization or graphitization process of the carbon fiber bundle, resulting in a high-strength carbon-based wire at high temperatures. It has the effect that it can be manufactured.
さらに、本発明の組ひも締め付は方法は、丸棒やパイプ
の炭素繊維強化炭素材の製造にも利用できるものである
。Furthermore, the braid tightening method of the present invention can also be used for manufacturing carbon fiber-reinforced carbon materials for round bars and pipes.
添付図面は本発明法の実施例を示す説明図である。ただ
し、図中で組ひも機はその組ひも原料糸リール部分のみ
を示しである。
符号説明
１−炭素繊維リール ２−炭素繊維束
３−樹脂溶融槽 ４−組ひも原料糸リール５−組ひも締
付は炭素束 ６−加熱炉
７−線材成形（コイリング）機
８−炭素線材コイルThe accompanying drawings are explanatory diagrams showing embodiments of the method of the present invention. However, in the figure, only the braiding material yarn reel portion of the braiding machine is shown. Description of symbols 1 - Carbon fiber reel 2 - Carbon fiber bundle 3 - Resin melting tank 4 - Braid raw material yarn reel 5 - Carbon bundle for tightening the braid 6 - Heating furnace 7 - Wire rod forming (coiling) machine 8 - Carbon wire coil
Claims (4)
含浸し、その後移動する炭素繊維束上に該繊維束を芯に
して複数の糸を組合せて組ひもを順次に作り、該組ひも
で該繊維束をその周囲から締め付けかつ該繊維束と組ひ
もに張力をかけながら炭素繊維束を熱処理して線状に成
形することを特徴とする高強度の炭素系線材の製造方法
。(1) Pass the carbon fiber bundle through a resin liquid to impregnate the fiber bundle with resin, and then sequentially create a braid by combining a plurality of threads with the fiber bundle as a core on the moving carbon fiber bundle. A method for manufacturing a high-strength carbon-based wire rod, which comprises heat-treating and forming a carbon fiber bundle into a linear shape while tightening the fiber bundle from its periphery with a string and applying tension to the fiber bundle and the braid.
ール樹脂、フラン樹脂等の熱硬化性樹脂である特許請求
の範囲第１項記載の炭素系線材の製造方法。(2) The method for manufacturing a carbon-based wire rod according to claim 1, wherein the resin is a thermoplastic resin such as pitch, or a thermosetting resin such as phenol resin or furan resin.
ミック繊維あるいは有機繊維からなる特許請求の範囲第
１項又は第２項記載の炭素系線材の製造方法。(3) The method for producing a carbon-based wire rod according to claim 1 or 2, wherein the thread forming the braid is made of carbon fiber, metal fiber, ceramic fiber, or organic fiber.
することにより線材となった前記繊維束から除去する特
許請求の範囲第１項、第２項又は第３項記載の炭素系線
材の製造方法。(4) The method for manufacturing a carbon-based wire rod according to claim 1, 2, or 3, wherein the braid is removed from the fiber bundle that has become a wire rod by melting, melting, or burning after heat treatment. .
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63140766A JPH01314793A (en) | 1988-06-08 | 1988-06-08 | Production of carbon wire |
| GB8913043A GB2221900B (en) | 1988-06-08 | 1989-06-07 | Elongate carbon materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63140766A JPH01314793A (en) | 1988-06-08 | 1988-06-08 | Production of carbon wire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01314793A true JPH01314793A (en) | 1989-12-19 |
| JPH0359200B2 JPH0359200B2 (en) | 1991-09-09 |
Family
ID=15276247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63140766A Granted JPH01314793A (en) | 1988-06-08 | 1988-06-08 | Production of carbon wire |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPH01314793A (en) |
| GB (1) | GB2221900B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49134947A (en) * | 1973-05-01 | 1974-12-25 | ||
| JPS55142596U (en) * | 1979-03-31 | 1980-10-13 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3723157A (en) * | 1969-11-07 | 1973-03-27 | Celanese Corp | Production of resin impregnated fibrous graphite ribbons |
| GB1354493A (en) * | 1970-07-27 | 1974-06-05 | Nat Res Dev | Carbon fibre tow |
-
1988
- 1988-06-08 JP JP63140766A patent/JPH01314793A/en active Granted
-
1989
- 1989-06-07 GB GB8913043A patent/GB2221900B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49134947A (en) * | 1973-05-01 | 1974-12-25 | ||
| JPS55142596U (en) * | 1979-03-31 | 1980-10-13 |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2221900B (en) | 1991-11-13 |
| JPH0359200B2 (en) | 1991-09-09 |
| GB8913043D0 (en) | 1989-07-26 |
| GB2221900A (en) | 1990-02-21 |
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