JPH0521413B2 - - Google Patents
Info
- Publication number
- JPH0521413B2 JPH0521413B2 JP60192032A JP19203285A JPH0521413B2 JP H0521413 B2 JPH0521413 B2 JP H0521413B2 JP 60192032 A JP60192032 A JP 60192032A JP 19203285 A JP19203285 A JP 19203285A JP H0521413 B2 JPH0521413 B2 JP H0521413B2
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- sleeve
- fibers
- measuring
- present
- 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
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 17
- 229910052799 carbon Inorganic materials 0.000 claims description 14
- 230000003287 optical effect Effects 0.000 claims description 10
- 239000002131 composite material Substances 0.000 claims description 9
- 238000009529 body temperature measurement Methods 0.000 claims description 6
- 239000000835 fiber Substances 0.000 description 13
- 229920000049 Carbon (fiber) Polymers 0.000 description 9
- 239000004917 carbon fiber Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 6
- 239000010439 graphite Substances 0.000 description 4
- 229910002804 graphite Inorganic materials 0.000 description 4
- 239000003575 carbonaceous material Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000011295 pitch Substances 0.000 description 3
- 239000012779 reinforcing material Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- YLQBMQCUIZJEEH-UHFFFAOYSA-N Furan Chemical compound C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 2
- 229920000297 Rayon Polymers 0.000 description 2
- 238000010000 carbonizing Methods 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000000280 densification Methods 0.000 description 2
- 239000007770 graphite material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002964 rayon Substances 0.000 description 2
- 229920001187 thermosetting polymer Polymers 0.000 description 2
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- RBDWCSWYBOZGGD-UHFFFAOYSA-N [C].C(C=C)#N Chemical compound [C].C(C=C)#N RBDWCSWYBOZGGD-UHFFFAOYSA-N 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 239000011294 coal tar pitch Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000005087 graphitization Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 239000000123 paper Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000011134 resol-type phenolic resin Substances 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は高温処理炉測温用スリーブ及びその使
用方法に関するものである。更に詳しくは、有機
物を炭素化あるいは黒鉛化する際、あるいはセラ
ミツクの製造の際に使用される高温熱処理炉の内
部測温用の炭素繊維強化炭素複合材（以下「Ｃ／
Ｃ」と略記する）にてなる測温用スリーブとその
使用方法とに関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a sleeve for temperature measurement in a high temperature processing furnace and a method of using the same. More specifically, carbon fiber-reinforced carbon composite materials (hereinafter referred to as "C/
The present invention relates to a temperature measuring sleeve (abbreviated as "C") and a method of using the same.
従来、アクリロニトリル系繊維、レーヨン繊
維、ピツチ繊維等の有機繊維を加熱処理炉で炭素
化あるいは黒鉛化することにより炭素繊維あるい
は黒鉛繊維を得ることは知られている。このよう
な熱処理炉は、主として被処理繊維の処理室とな
る中央空胴を有する炉芯筒部と断熱材等を介して
配設された外壁部とより構成されている。
It has been known to obtain carbon fibers or graphite fibers by carbonizing or graphitizing organic fibers such as acrylonitrile fibers, rayon fibers, pitch fibers, etc. in a heat treatment furnace. Such a heat treatment furnace is mainly composed of a core tube section having a central cavity that serves as a processing chamber for the fibers to be treated, and an outer wall section disposed through a heat insulating material or the like.
このような高温（熱）処理炉の内部温度は、光
の波長の輝度を測定することによつて求められて
いる。 The internal temperature of such a high-temperature (thermal) treatment furnace is determined by measuring the brightness of the wavelength of light.
このため、高温処理炉の内部温度測定には、光
路を確保するための補助スリーブが使用されてい
る。 For this reason, an auxiliary sleeve is used to ensure an optical path when measuring the internal temperature of a high-temperature processing furnace.
スリーブの素材としては、耐熱金属、セラミツ
クあるいは通常の炭素材料が用いられている。 The sleeve is made of heat-resistant metal, ceramic, or ordinary carbon material.
しかし、耐熱金属は、その使用温度範囲が狭
く、またセラミツクあるいは通常の炭素材は、そ
の機械的特性、特に衝撃強さ、曲げ強さ等が小さ
く取扱いに困難をきたした。 However, heat-resistant metals have a narrow operating temperature range, and ceramics or ordinary carbon materials have poor mechanical properties, particularly impact strength and bending strength, making them difficult to handle.
比較的強度の高い黒鉛材は、熱伝導率が大きい
ため、スリーブを通して被測定物体の熱が伝導し
測定端の温度が上昇する。 Since the relatively strong graphite material has high thermal conductivity, heat from the object to be measured is conducted through the sleeve, increasing the temperature at the measuring end.
（発明の構成）
本発明者等は、このような問題について鋭意検
討の結果、高温処理炉内部温度測定用スリーブ材
としてＣ／Ｃを使用することにより、これらの問
題を解決し得ることを見出し本発明に至つた。(Structure of the Invention) As a result of intensive studies on these problems, the present inventors found that these problems could be solved by using C/C as a sleeve material for measuring the temperature inside a high-temperature treatment furnace. This led to the present invention.
すなわち本発明は、炭素繊維強化炭素複合材に
てなる高温処理炉測温用スリーブである。また、
本発明は、炭素繊維強化炭素複合材にてなる複数
のスリーブを間隔をあけて同軸上に一直線に配置
することにより、被測温物体と光高温計との間の
光路を形成させることを特徴とする高温処理炉測
温用スリーブの使用方法である。 That is, the present invention is a sleeve for temperature measurement in a high-temperature treatment furnace made of a carbon fiber-reinforced carbon composite material. Also,
The present invention is characterized in that a plurality of sleeves made of carbon fiber-reinforced carbon composite material are arranged coaxially and in a straight line at intervals to form an optical path between the object to be measured and the optical pyrometer. This is a method of using a sleeve for temperature measurement in a high temperature processing furnace.
該スリーブは機械的特性に優れ薄肉化できるの
で軽量で熱の伝導も小さく、取付部への負荷も小
さくなる。またＣ／Ｃは通常の黒鉛材料に比較し
て衝撃強度が大きく取扱性も良く、また熱伝導率
も小さく測温用スリーブに適した材料である。 Since the sleeve has excellent mechanical properties and can be made thin, it is lightweight, conducts little heat, and reduces the load on the mounting portion. Furthermore, C/C has higher impact strength than ordinary graphite materials, is easier to handle, and has a lower thermal conductivity, making it suitable for temperature measuring sleeves.
本発明において、Ｃ／Ｃの強化材とした炭素繊
維はアクリロニトリル系炭素繊維、ピツチ系炭素
繊維、レーヨン系炭素繊維あるいはそれらの黒鉛
繊維等である。Ｃ／Ｃにおける強化材の形態は連
続繊維あるいは非連続繊維すなわち長繊維あるい
は短繊維でストランド、テープ、織物、不織布、
紙等が使用できる。 In the present invention, the carbon fibers used as reinforcing materials for the C/C are acrylonitrile carbon fibers, pitch carbon fibers, rayon carbon fibers, or graphite fibers thereof. The reinforcing material in C/C is in the form of continuous fibers or discontinuous fibers, that is, long fibers or short fibers, such as strands, tapes, woven fabrics, non-woven fabrics,
Paper, etc. can be used.
Ｃ／Ｃにおける強化材の体積含有率は５〜60％
が好ましい。強化材の含有率が５％より低いと機
械的特性が低下し、逆に60％より高くなるとＣ／
Ｃの製造工程において割れ等破損する頻度が高く
なる。特に好ましくは20〜55％である。 The volume content of reinforcement in C/C is 5-60%
is preferred. If the reinforcing material content is lower than 5%, the mechanical properties will decrease, while if it is higher than 60%, C/
In the manufacturing process of C, damage such as cracks occurs more frequently. Particularly preferably 20 to 55%.
本発明におけるＣ／Ｃスリーブの製造は、炭素
繊維あるいは黒鉛繊維にフエノール、フランある
いはエポキシ等の熱硬化性樹脂を含浸し所望のス
リーブ形状に成形硬化後、不活性雰囲気中で炭素
化あるいは必要により黒鉛化し複合材料とする。 The production of the C/C sleeve in the present invention involves impregnating carbon fibers or graphite fibers with a thermosetting resin such as phenol, furan, or epoxy, molding and curing them into the desired sleeve shape, and then carbonizing them in an inert atmosphere or, if necessary, It is graphitized and made into a composite material.
次に必要とされる機械的特性を得られるまで熱
硬化性樹脂あるいはピツチ等を該複合材料に含浸
し、更に炭素化あるいは黒鉛化を行なつて緻密化
する。この緻密化工程は高温に保持した該複合材
料あるいは所望の形状に保持した炭素繊維または
黒鉛繊維に炭化水素ガスを加熱分解して炭素を蒸
着する、いわゆるケミカル・ベーパー・デイポジ
シヨン法によつて行なつてもよい。緻密化はＣ／
Ｃの高密度が0.8〜1.7ｇ／cm3となるまで行なうの
が好ましい。1.7ｇ／cm3より高くなるとＣ／Ｃの
熱伝導率が良くなり高温処理炉のスリーブとして
は不適当となる。逆に嵩密度が0.8ｇ／cm3より低
いと機械的特性が不十分となる。 Next, the composite material is impregnated with a thermosetting resin or pitch until the required mechanical properties are obtained, and then carbonized or graphitized to make it denser. This densification step is carried out by the so-called chemical vapor deposition method, in which carbon is deposited by thermally decomposing hydrocarbon gas onto the composite material held at high temperature or onto carbon fibers or graphite fibers held in a desired shape. It's okay. Densification is C/
It is preferable to carry out the process until the high density of C reaches 0.8 to 1.7 g/cm 3 . If it is higher than 1.7 g/cm 3 , the thermal conductivity of C/C becomes poor and it becomes unsuitable as a sleeve for a high-temperature processing furnace. Conversely, if the bulk density is lower than 0.8 g/cm 3 , the mechanical properties will be insufficient.
本発明のスリーブとしては、肉厚1.5mm以下が
熱伝導の点で特に好ましい。通常の炭素材料は機
械的強度上３mm以上の肉厚が必要で熱伝導が大き
くなる問題がある。 The sleeve of the present invention preferably has a wall thickness of 1.5 mm or less in terms of heat conduction. Ordinary carbon materials require a wall thickness of 3 mm or more for mechanical strength, which poses the problem of increased heat conduction.
また、本発明において使用されるＣ／Ｃは製造
工程において、800〜2500℃の熱処理を受けてい
ることがよい。熱処理温度が低いとＣ／Ｃに揮発
分が残存し光路を汚染し測温時に誤差を生じる。 Further, the C/C used in the present invention is preferably subjected to heat treatment at 800 to 2500°C during the manufacturing process. If the heat treatment temperature is low, volatile matter remains in the C/C and contaminates the optical path, causing an error in temperature measurement.
一方、2500℃以上の熱処理を受けるとＣ／Ｃの
黒鉛化が進み強度劣化あるいは熱伝導率の上昇等
が生じ、測温用スリーブ材として不適になる。 On the other hand, when subjected to heat treatment at 2500° C. or higher, graphitization of C/C progresses, resulting in deterioration in strength or increase in thermal conductivity, making it unsuitable as a sleeve material for temperature measurement.
高温処理炉における内部温度測定用スリーブの
内、本発明のＣ／Ｃを利用できるスリーブとして
は、ふく射式温度計の光路管、通常の熱伝対の保
護管等がある。これらのスリーブは通常高温雰囲
気で使用されるため、窒素、アルゴン等の不活性
ガスでシールされている。高温処理炉の内部温度
測定用スリーブとしては、中空状のパイプで断面
は円形、だ円、角形等で端部等にフランジを持つ
場合もある。 Among sleeves for measuring internal temperature in high-temperature processing furnaces, sleeves to which the C/C of the present invention can be used include optical path tubes of radiation thermometers, protection tubes of ordinary thermocouples, and the like. Since these sleeves are usually used in high temperature atmospheres, they are sealed with an inert gas such as nitrogen or argon. A sleeve for measuring the internal temperature of a high-temperature processing furnace may be a hollow pipe with a circular, oval, or square cross section, and may have a flange at the end.
また本発明は、炭素繊維強化炭素複合材にてな
る複数のスリーブを間隔をあけて同軸上に一直線
に配置することにより、被測温物体と光高温計と
の間の光路を形成させることを特徴とする高温処
理炉測温用スリーブの使用方法である。 The present invention also provides a method for forming an optical path between the temperature-measuring object and the optical pyrometer by arranging a plurality of sleeves made of carbon fiber-reinforced carbon composite material in a straight line coaxially at intervals. This is a method of using the featured temperature measuring sleeve for high temperature processing furnaces.
この場合Ｃ／Ｃ材内での熱の伝導を断つうえで
有効である。 In this case, it is effective in cutting off heat conduction within the C/C material.
本発明のスリーブを図面によつて説明する。 The sleeve of the present invention will be explained with reference to the drawings.
第１図は直筒形スリーブ、第２図はフランジ付
きスリーブの夫々斜視図を示すものである。第３
図は、複数のスリーブを間隔をあけて同軸上に一
直線に配置した例を示すものである。 FIG. 1 is a perspective view of a straight cylindrical sleeve, and FIG. 2 is a perspective view of a flanged sleeve. Third
The figure shows an example in which a plurality of sleeves are arranged coaxially and in a straight line at intervals.
実施例 １
3000フイラメントの炭素繊維平織クロス（目付
200ｇ／m2）にレゾールタイプフエノール樹脂を
レジンコンテント35wt％含浸してプリプレグを
作製した。該プリプレグを巾450mmに切断して片
側50mmに10mm間隔で切り込みを入れた後、短径30
mm、長径50mmのマンドレルに厚さ１mmになるよう
に巻き付けた後、切り込みを入れた部分をマンド
レルの軸に直角に放射状に広げ、その両面から該
プリプレグを外径150mmに切断しその中央部をマ
ンドレルの断面形状にくり抜いた円盤を各３プラ
イ積層して加圧硬化した後、窒素雰囲気中で加熱
炭素化し、更にコールタールピツチを含浸、再炭
素化を３回繰返して、径150mmのフランジ付きで
内径が短径30mm、長径50mm、長さ400mmのスリー
ブを得た。該スリーブを炭素繊維製造の高温熱処
理炉の光高温計の測温用スリーブとして使用した
ところ変形、測定誤差等、炉の運転に支障をきた
すような現象は認められなかつた。
Example 1 3000 filament carbon fiber plain weave cloth (basis weight
A prepreg was prepared by impregnating 200 g/m 2 ) of resol type phenolic resin with a resin content of 35 wt%. After cutting the prepreg to a width of 450 mm and making cuts at 10 mm intervals on one side, the short diameter was 30 mm.
After wrapping the prepreg to a thickness of 1 mm around a mandrel with a length of 50 mm and a major diameter of 50 mm, the notched portion is spread radially at right angles to the axis of the mandrel, and the prepreg is cut from both sides to an outer diameter of 150 mm. After laminating 3 plies each of disks cut into the cross-sectional shape of a mandrel and hardening them under pressure, they were heated and carbonized in a nitrogen atmosphere, and then impregnated with coal tar pitch and recarbonized three times to form a flange with a diameter of 150 mm. A sleeve with an inner diameter of 30 mm in short axis, 50 mm in major axis, and 400 mm in length was obtained. When this sleeve was used as a temperature measuring sleeve for an optical pyrometer in a high-temperature heat treatment furnace for producing carbon fibers, no phenomena such as deformation, measurement errors, etc. that would impede the operation of the furnace were observed.
第１図は本発明例の直筒形スリーブ、第２図は
同フランジ付きスリーブの各斜視図である。第３
図は本発明のスリーブ２本を間隔をあけて同軸上
に一直線に配置した斜視図である。
１……スリーブ本体、２……中空部、３……フ
ランジ。
FIG. 1 is a perspective view of a straight cylindrical sleeve according to an example of the present invention, and FIG. 2 is a perspective view of the same flanged sleeve. Third
The figure is a perspective view of two sleeves of the present invention arranged coaxially and in a straight line with an interval between them. 1...Sleeve body, 2...Hollow part, 3...Flange.
Claims (1)
測温用スリーブ。 ２ 炭素繊維強化炭素複合材にてなる複数のスリ
ーブを間隔をあけて同軸上に一直線に配置するこ
とにより、被測温物体と光高温計との間の光路を
形成させることを特徴とする高温処理炉測温用ス
リーブの使用方法。[Claims] 1. A sleeve for temperature measurement in a high-temperature treatment furnace made of carbon fiber-reinforced carbon composite material. 2. A high-temperature device characterized by forming an optical path between the temperature-measuring object and the optical pyrometer by arranging a plurality of sleeves made of carbon fiber-reinforced carbon composite material in a straight line coaxially at intervals. How to use the processing furnace temperature measuring sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60192032A JPS6252422A (en) | 1985-09-02 | 1985-09-02 | Sleeve for measuring temperature of high temperature treatment furnace and it use |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60192032A JPS6252422A (en) | 1985-09-02 | 1985-09-02 | Sleeve for measuring temperature of high temperature treatment furnace and it use |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6252422A JPS6252422A (en) | 1987-03-07 |
| JPH0521413B2 true JPH0521413B2 (en) | 1993-03-24 |
Family
ID=16284462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60192032A Granted JPS6252422A (en) | 1985-09-02 | 1985-09-02 | Sleeve for measuring temperature of high temperature treatment furnace and it use |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6252422A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5750753A (en) * | 1980-09-12 | 1982-03-25 | Hitachi Ltd | Color picture tube |
| JPH0782821B2 (en) * | 1990-05-21 | 1995-09-06 | 日本アチソン株式会社 | Interior coating agent composition for cathode ray tube |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57149877A (en) * | 1981-03-09 | 1982-09-16 | Toho Beslon Co | Carbon composite material and manufacture |
| JPS59102880A (en) * | 1982-12-02 | 1984-06-14 | 東レ株式会社 | High temperature heat resistant material |
-
1985
- 1985-09-02 JP JP60192032A patent/JPS6252422A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57149877A (en) * | 1981-03-09 | 1982-09-16 | Toho Beslon Co | Carbon composite material and manufacture |
| JPS59102880A (en) * | 1982-12-02 | 1984-06-14 | 東レ株式会社 | High temperature heat resistant material |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6252422A (en) | 1987-03-07 |
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