JPS61213486A - High-temperature treatment furnace - Google Patents
High-temperature treatment furnaceInfo
- Publication number
- JPS61213486A JPS61213486A JP60054148A JP5414885A JPS61213486A JP S61213486 A JPS61213486 A JP S61213486A JP 60054148 A JP60054148 A JP 60054148A JP 5414885 A JP5414885 A JP 5414885A JP S61213486 A JPS61213486 A JP S61213486A
- Authority
- JP
- Japan
- Prior art keywords
- treatment furnace
- composite material
- temperature treatment
- internal structural
- furnace according
- 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
- 239000002131 composite material Substances 0.000 claims description 26
- 239000000835 fiber Substances 0.000 claims description 15
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 13
- 239000004917 carbon fiber Substances 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 11
- 239000004744 fabric Substances 0.000 claims description 8
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 8
- 239000003575 carbonaceous material Substances 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 12
- 238000010438 heat treatment Methods 0.000 description 11
- 229910052799 carbon Inorganic materials 0.000 description 6
- 239000010439 graphite Substances 0.000 description 6
- 229910002804 graphite Inorganic materials 0.000 description 6
- 239000012299 nitrogen atmosphere Substances 0.000 description 5
- 239000011295 pitch Substances 0.000 description 5
- 239000011347 resin Substances 0.000 description 5
- 229920005989 resin Polymers 0.000 description 5
- 239000012298 atmosphere Substances 0.000 description 4
- 239000000919 ceramic Substances 0.000 description 4
- 239000011810 insulating material Substances 0.000 description 4
- 239000012774 insulation material Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000010000 carbonizing Methods 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 239000012779 reinforcing material Substances 0.000 description 3
- YLQBMQCUIZJEEH-UHFFFAOYSA-N Furan Chemical compound C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 2
- 229920000297 Rayon Polymers 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 238000000280 densification Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000005011 phenolic resin Substances 0.000 description 2
- 239000002964 rayon Substances 0.000 description 2
- 229920001187 thermosetting polymer Polymers 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 1
- 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
- RBDWCSWYBOZGGD-UHFFFAOYSA-N [C].C(C=C)#N Chemical compound [C].C(C=C)#N RBDWCSWYBOZGGD-UHFFFAOYSA-N 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 239000011294 coal tar pitch Substances 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007849 furan resin 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
- 238000005470 impregnation Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 210000001747 pupil Anatomy 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
Landscapes
- Ceramic Products (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
- Inorganic Fibers (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
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に関するものである。更に詳しくは
、炭素繊維で強化した実質的に炭素質から成る複合材料
（以下Ｃ／Ｃと略記する）が内部構造部材として使用さ
れているところの有機物を炭素化あるいは黒１））化す
る際、あるいはセラミックの製造の際に好適に使用され
る高温処理炉に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a high temperature processing furnace. More specifically, when a composite material made essentially of carbonaceous material reinforced with carbon fibers (hereinafter abbreviated as C/C) is used as an internal structural member, organic matter is carbonized or blackened1)). Alternatively, the present invention relates to a high-temperature treatment furnace suitably used in the production of ceramics.
（従来技術〕
従来、アクリロニトリル系繊維、レーヨン繊維、ピッチ
繊維など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＃Ａ瞳あるいは黒鉛繊維を得るこ
とは知られている。(Prior Art) It has been known to obtain carbon #A pupils or graphite fibers by carbonizing or graphitizing organic fibers such as acrylonitrile fibers, rayon fibers, and pitch fibers in a heat treatment furnace.
このような加熱処理炉は主として被処理繊維の処理室と
なる中央空洞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。Such a heat treatment furnace is mainly composed of a core tube portion having a central cavity that serves as a treatment chamber for the fibers to be treated, and an outer wall portion disposed through a heat insulating material or the like.
このような加熱処理炉において断熱材は断熱金属、セラ
ミックあるいは通常の炭素材で支持されている。In such heat treatment furnaces, the insulation is supported by insulating metal, ceramic, or conventional carbon material.
耐熱金属は、その使用温度範囲が狭く、またセラミック
及び通常の炭素材はその機械的特性、特に１ｉｌｉ１強
さ、曲げ強さ等が小さく取扱いに困難をきたした。Heat-resistant metals have a narrow operating temperature range, and ceramics and ordinary carbon materials have low mechanical properties, particularly low strength and bending strength, making them difficult to handle.
本発明者は、このような問題について鋭意検討の結果、
構造部材としてＣ７０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った。As a result of intensive study on such problems, the inventor of the present invention found that
The inventors have discovered that these problems can be solved by using C70 as a structural member, leading to the present invention.
すなわち本発明は、炭素繊維で強化した実質的に炭素質
から成る複合材料を内部構造部材としたＩｊ４温処理炉
である。That is, the present invention is an Ij4 temperature treatment furnace whose internal structural members are made of a carbon fiber-reinforced, substantially carbonaceous composite material.
具体的には、断熱支持材、炉芯筒支持材、ワーク支持□
材などの内部構造部材が炭素質あるいは黒鉛質ｗａｇで
強化した実質的に炭素質あるいは黒鉛質から成る複合材
料で構成されている高温加熱処理炉である。Specifically, heat insulation support material, furnace core cylinder support material, work support material □
This is a high-temperature heat treatment furnace in which internal structural members such as materials are made of a composite material substantially made of carbonaceous or graphite reinforced with carbonaceous or graphite wag.
このような内部構造部材を使用した高温加熱処理炉は長
期間安定的に運転でき、該炉によると、品質の安定した
製品の製造が可能となる。A high-temperature heat treatment furnace using such internal structural members can operate stably for a long period of time, and it is possible to manufacture products with stable quality.
本発明において、Ｃ７０の強化材とした炭素繊維は、ア
クリロニトリル系炭素ＩＪＡＭ、ピッチ系炭素繊維、レ
ーヨン系炭素繊維、黒鉛ｔｌＡＨ等である。Ｃ７０にお
ける強化材の形態は織物、ランダムマット、紙およびこ
れらの積層物であり、繊維自体は連続繊維、非連続繊維
を使用できるが、熱伝導性を低下させる意味から非連続
繊維を使用することが好ましい。特にスパンヤーンクロ
ス積層物はＣ７０の低熱伝導性、切削加工性の面で好ま
しい。In the present invention, carbon fibers used as reinforcing materials for C70 include acrylonitrile carbon IJAM, pitch carbon fiber, rayon carbon fiber, graphite tlAH, and the like. The form of the reinforcing material in C70 is woven fabric, random mat, paper, and laminates thereof, and the fibers themselves can be continuous fibers or discontinuous fibers, but discontinuous fibers should be used in order to reduce thermal conductivity. is preferred. In particular, spun yarn cloth laminates are preferred in terms of C70's low thermal conductivity and machinability.
Ｃ７０における強化材ＩＩＩの１ｍ体積含有率（容量）
は１０〜６５％が好ましい。含有率が１０％より低いと
曲げ強さ等の機械的特性が低下し、逆に６５％より高く
なるとＣ７０の製造工程において層間での剥離等破損す
る頻′度が高くなる。1m volume content (capacity) of reinforcement III in C70
is preferably 10 to 65%. If the content is lower than 10%, mechanical properties such as bending strength will deteriorate, and if it is higher than 65%, damage such as interlayer peeling will occur more frequently in the C70 manufacturing process.
特に好ましくは２０〜５５％である。Particularly preferably 20 to 55%.
本発明におけるＣ７０のｔＪｍは、炭素繊維あるいは黒
鉛ｍｍにフェノール、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形状に成形硬化後、不活性雰囲
気中で炭素化あるいは黒鉛化し複合材料とする。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
るいはピッチ等を該複合材料に含浸、更に炭素化あるい
は黒鉛化を行ない緻密化する。この緻密化工程はＩＫｍ
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ｍＭ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・ペーパー・ディポジ
ション（ＣｖＤ）法によって行なってもよい。The tJm of C70 in the present invention is determined by impregnating carbon fiber or graphite mm with a thermosetting resin such as phenol, furan, or epoxy, molding it into a desired shape, curing it, and then carbonizing or graphitizing it in an inert atmosphere to make a composite material. . Next, the composite material is impregnated with a thermosetting resin, pitch, etc., and then carbonized or graphitized to make it denser until the required mechanical properties are obtained. This densification process is IKm
This may be carried out by a so-called chemical paper deposition (CvD) method in which carbon is vapor deposited by thermally decomposing a hydrocarbon gas onto the composite material held in a desired shape or carbon fibers or graphite mm maintained in a desired shape.
緻密化はＣ７０のｒＡ密度が０．８〜１．７（＋ ／Ｃ
１１となるまで行なうのが好ましい。 １．７０ Ｉ
Ｋｍ”より＾くなるとＣ７０の熱伝導が過大になり、得
られたＣ７０は高温処理炉の内部構造部材としては不適
当となる。逆に嵩密度が０．８ｇ／Ｃｌ１Ｋより低いと
機械的特性が不十分となる。Densification occurs when the rA density of C70 is 0.8 to 1.7 (+ /C
It is preferable to continue until the number reaches 11. 1.70 I
If the bulk density is lower than 0.8g/Cl1K, the thermal conductivity of C70 will be excessive, making the obtained C70 unsuitable as an internal structural member of a high-temperature treatment furnace.On the other hand, if the bulk density is lower than 0.8g/Cl1K, the mechanical properties will deteriorate. becomes insufficient.
また、本発明において使用されるＣ７０は製造工程にお
いて、８００〜２４００℃の熱処理を受けているものが
よい。熱処理温度が低いと、Ｃ７０に揮発分が残存し高
温処理炉の雰囲気純度を低下させる。一方２４００℃超
の熱処理を受けると、Ｃ７０の黒鉛化が進み、強度劣化
あるいは熱伝導の上昇等を生じ内部構造部材として不適
となる。Further, the C70 used in the present invention is preferably heat-treated at 800 to 2400°C during the manufacturing process. If the heat treatment temperature is low, volatile matter remains in C70, reducing the purity of the atmosphere in the high temperature treatment furnace. On the other hand, if C70 is subjected to heat treatment at temperatures exceeding 2400° C., graphitization of C70 progresses, resulting in deterioration in strength and increase in thermal conductivity, making it unsuitable as an internal structural member.
高温処理炉における内部構造部材の内、本発明のＣ７０
を特に好適に利用できる部材としては、誘導加熱炉のサ
セプターあるいは通常の炉芯管、抵抗加熱用のヒーター
エレメント、ワークサポートあるいはルツボ、断熱材支
持材等がある。Among the internal structural members in the high temperature treatment furnace, C70 of the present invention
Particularly suitable members include a susceptor for an induction heating furnace or a normal furnace core tube, a heater element for resistance heating, a work support or crucible, a heat insulating support material, and the like.
これらの部材は通常高部雰囲気で使用されるため、不活
性ガス等の非酸化性雰囲気でシールされている。Since these members are normally used in a high atmosphere, they are sealed in a non-oxidizing atmosphere such as an inert gas.
断熱材支持材は、通常その一端のみを外壁で支持固定す
るため、いわゆる片持ばりとなる。この片持ばりは断熱
材を支持することにより通常等分布荷重を受け、従って
、先端（自由端）より固定端に移るに従ってより大きな
応力を受けるため、形状を変化させて先端部に比し固定
部をより厚くあるいは広くすること、または下側に補強
材をＴ定形に配置することが行なわれている。支持材の
先端部の断面積を小さくすることは断熱効率の点からは
好ましいが、断熱材の支持の点からは不安定になる傾向
がある。これらの点を考慮して断熱材支持構造部材の先
端の密度を小さくし固定端部にかけ密度勾配を付けるこ
とにより断熱効果と断熱材の安定な支持とを両立させる
ことが可能となる。Usually, only one end of the heat insulating support material is supported and fixed by the outer wall, so it becomes a so-called cantilever beam. This cantilever beam usually receives an evenly distributed load by supporting the insulation material, and therefore receives greater stress as it moves from the tip (free end) to the fixed end, so it changes its shape and is fixed compared to the tip. It has been attempted to make the section thicker or wider, or to place reinforcing material on the underside in a T-shape. Although it is preferable to reduce the cross-sectional area of the tip of the support material from the viewpoint of heat insulation efficiency, it tends to become unstable from the viewpoint of supporting the heat insulation material. Taking these points into consideration, it is possible to achieve both a heat insulating effect and stable support of the heat insulating material by reducing the density at the tip of the heat insulating material supporting structural member and creating a density gradient toward the fixed end.
（実施例）
実施例１
直径７μの炭素繊維ストランド〔東邦ベスロン（株）製
ベスファイトＨＴＡ −１２Ｋ）にフ”ラン樹脂を含浸
して繊維体積含有率５５％になるように内径１２ａａ＋
のセラミックパイプ中に挿入し、加熱硬化後、窒素雰囲
気中１０００℃にて炭素化して一方向炭素繊維強化炭素
複合材を得た。該複合材の周囲に、３０００フイラメン
トの炭素１１ＡＨ平織クロス〔東邦ベスロン（株）製ベ
スファイトクロスＷ−３１０１）にフェノール樹脂をレ
ジンコンテント３６％含浸したプリプレグを外径２０ｍ
＋ａになるまで巻き付けた後、１７０℃で加熱硬化後窒
素雰囲気中１０００℃で炭素化して、更にコールタール
ピッチを含浸及び炭素化を３０行なって、中央部一方向
強化、外層部二方向強化で嵩密度１．６ｇ ／ａｍ”
、繊維体積含有率５３％の丸棒状複合材を得た。(Example) Example 1 A carbon fiber strand with a diameter of 7 μm (Besphite HTA-12K manufactured by Toho Bethlon Co., Ltd.) was impregnated with furan resin to obtain an inner diameter of 12 aa+ so that the fiber volume content was 55%.
The material was inserted into a ceramic pipe, heated and cured, and then carbonized at 1000° C. in a nitrogen atmosphere to obtain a unidirectional carbon fiber reinforced carbon composite material. Around the composite material, a prepreg made of 3000 filament carbon 11AH plain weave cloth (Besphite cloth W-3101 manufactured by Toho Bethlon Co., Ltd.) impregnated with 36% resin content of phenolic resin was placed with an outer diameter of 20 m.
After wrapping it until it reaches +a, it is heated and cured at 170℃, carbonized at 1000℃ in a nitrogen atmosphere, and further impregnated with coal tar pitch and carbonized for 30 times to strengthen the center part in one direction and the outer layer in two directions. Bulk density 1.6g/am”
A round rod-shaped composite material with a fiber volume content of 53% was obtained.
炭素繊維マット（目付２５０Ｑ／■鵞）にフェノール樹
脂をレジンコンテント３８％含浸したプリプレグを＠Ｉ
ｌｖ＆、１７０℃で加熱硬化して繊維体積含有率４５％
、密度１．２０ ／ｃａ＋’の複合材を得た。この複合
材を窒素雰囲気中１０００℃で炭素化後、ピッチの含浸
及び炭素化を３回行なって厚さ１０ｍｍの平板状複合材
料を得た。Pre-preg made by impregnating 38% resin content with phenol resin in carbon fiber mat (fabric weight 250Q/■) @I
lv&, heated and cured at 170℃, fiber volume content 45%
, a composite material with a density of 1.20 /ca+' was obtained. This composite material was carbonized at 1000° C. in a nitrogen atmosphere, and then impregnated with pitch and carbonized three times to obtain a flat composite material with a thickness of 10 mm.
３０００フイラメントの炭素ｍ雑平織クロス（目付２０
０ｇ／ｗ ’ ）にフェノールａｍをレジンコンテント
３５％含浸したプリプレグを積層後加熱硬化して厚さ２
０ｇｖＳＩＩＩＮｔ体積含有率５０％、密度１．３ｇ
／ｃｌ”の硬化物を得た。この硬化物を窒素雰囲気中で
炭素化後、ピッチの含浸及び炭素化を５回繰返して厚さ
２〇−転嵩密度１．６ｇ／ＣＩ”の複合材料を得た。3000 filament carbon m plain weave cloth (basis weight 20
After laminating prepregs impregnated with 35% resin content of phenol am to
0gvSIIINT volume content 50%, density 1.3g
After carbonizing this cured product in a nitrogen atmosphere, pitch impregnation and carbonization were repeated five times to obtain a composite material with a thickness of 20-1.6 g/Cl" and a bulk density of 1.6 g/Cl". I got it.
厚さ１０＋ｇｍの該平板状複合材の一端を高温熱処理炉
の外壁に固定し、この平板に直径２２ｍｇ＋の穴をあけ
て、該丸棒状複合材を貫通往しめ、この丸棒状複合材の
両端部に雄ネジを切り、前記の厚さ２０ａｖの複合材に
、これに合うように雌ネジを切って、ナツト形状とし、
前記の丸棒を固定した。この丸棒にて平板状フェルト断
熱材を貫通して固定し、高温処理炉の断熱材の固定支持
材とした。One end of the flat composite material with a thickness of 10+gm is fixed to the outer wall of a high-temperature heat treatment furnace, a hole with a diameter of 22 mg+ is made in this flat plate, and the round bar-shaped composite material is passed through it, and both ends of this round bar-shaped composite material are A male thread was cut into the composite material with a thickness of 20 av, and a female thread was cut to match this into the composite material with a thickness of 20 av to form a nut shape.
The round bar described above was fixed. This round rod penetrated and fixed the flat felt insulation material to serve as a fixed support material for the insulation material of a high-temperature treatment furnace.
この高温熱処理炉において断熱材に囲まれた炉芯部を熱
処理室とし、窒素雰囲気にて１６００℃にて６か月間保
持したが断熱材のずれ等、高温熱処理炉の安定な運転に
支障をきたす様な現象は認められなかった。In this high-temperature heat treatment furnace, the furnace core surrounded by heat-insulating material was used as a heat-treating chamber, and the temperature was maintained at 1,600°C in a nitrogen atmosphere for 6 months. No similar phenomenon was observed.
特許出願人 東Ｘヘスロシ林式会社 代理人弁理士 土 居 三 部 手続補正圓 昭和６０年７月２２日Patent applicant: Tox Heslosi Hayashiki Company Representative Patent Attorney, Third Department procedural correction circle July 22, 1985
Claims (9)
材料を内部構造部材とした高温処理炉。(1) A high-temperature treatment furnace whose internal structural members are made of a composite material made essentially of carbonaceous material reinforced with carbon fibers.
１）の高温処理炉。(2) Claims in which a composite material is used as a heat insulating support material (
1) High temperature processing furnace.
請求の範囲（１）の高温処理炉。(3) The high-temperature treatment furnace according to claim (1), in which a composite material is used as a cantilever-shaped heat insulating support material.
構造部材とした特許請求の範囲（１）の高温処理炉。(4) The high-temperature treatment furnace according to claim (1), in which the internal structural member is made of a composite material heat-treated at 800 to 2400°C.
料を内部構造部材とした特許請求の範囲（１）の高温処
理炉。(5) A high-temperature treatment furnace according to claim (1), in which the internal structural member is made of a composite material having a density of 0.8 to 1.7 g/cm^3.
内部構造部材とした特許請求の範囲（１）の高温処理炉
。(6) The high-temperature treatment furnace according to claim (1), in which the internal structural member is made of a composite material having a fiber volume content of 20 to 55%.
部材とした特許請求の範囲（１）の高温処理炉。(7) The high-temperature treatment furnace according to claim (1), in which the internal structural member is made of a composite material in which the carbon fibers are discontinuous fibers.
部材とした特許請求の範囲（１）の高温処理炉。(8) The high-temperature treatment furnace according to claim (1), wherein the internal structural member is a composite material that is a laminate of carbon fiber fabrics.
求の範囲（８）の高温処理炉。(9) The high temperature treatment furnace according to claim (8), wherein the carbon fiber fabric is a spun yarn cloth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60054148A JPS61213486A (en) | 1985-03-20 | 1985-03-20 | High-temperature treatment furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60054148A JPS61213486A (en) | 1985-03-20 | 1985-03-20 | High-temperature treatment furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61213486A true JPS61213486A (en) | 1986-09-22 |
| JPS6356471B2 JPS6356471B2 (en) | 1988-11-08 |
Family
ID=12962464
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60054148A Granted JPS61213486A (en) | 1985-03-20 | 1985-03-20 | High-temperature treatment furnace |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61213486A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01167584A (en) * | 1987-12-21 | 1989-07-03 | Kureha Chem Ind Co Ltd | Carbon fiber series heat insulating material |
| JPH0250079A (en) * | 1988-08-09 | 1990-02-20 | Kanto Yakin Kogyo Kk | High-temperature heating furnace |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3295559A (en) * | 1962-09-17 | 1967-01-03 | Union Carbide Corp | Induction heating susceptor and method for producing same |
| JPS5035930A (en) * | 1973-07-12 | 1975-04-04 | ||
| JPS5186709U (en) * | 1974-12-29 | 1976-07-12 | ||
| JPS5616575A (en) * | 1979-07-18 | 1981-02-17 | Toho Rayon Co Ltd | Friction material and its preparation |
| JPS5734085A (en) * | 1980-08-06 | 1982-02-24 | Toho Beslon Co | Manufacture of carbon fiber reinforced carbon composite material |
| JPS57209883A (en) * | 1981-06-16 | 1982-12-23 | Tokai Carbon Kk | Manufacture of carbon fiber reinforced carbon material |
| JPS59102880A (en) * | 1982-12-02 | 1984-06-14 | 東レ株式会社 | High temperature heat resistant material |
| US4581263A (en) * | 1984-08-27 | 1986-04-08 | Fiber Materials, Inc. | Graphite fiber mold |
-
1985
- 1985-03-20 JP JP60054148A patent/JPS61213486A/en active Granted
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3295559A (en) * | 1962-09-17 | 1967-01-03 | Union Carbide Corp | Induction heating susceptor and method for producing same |
| JPS5035930A (en) * | 1973-07-12 | 1975-04-04 | ||
| JPS5186709U (en) * | 1974-12-29 | 1976-07-12 | ||
| JPS5616575A (en) * | 1979-07-18 | 1981-02-17 | Toho Rayon Co Ltd | Friction material and its preparation |
| JPS5734085A (en) * | 1980-08-06 | 1982-02-24 | Toho Beslon Co | Manufacture of carbon fiber reinforced carbon composite material |
| JPS57209883A (en) * | 1981-06-16 | 1982-12-23 | Tokai Carbon Kk | Manufacture of carbon fiber reinforced carbon material |
| JPS59102880A (en) * | 1982-12-02 | 1984-06-14 | 東レ株式会社 | High temperature heat resistant material |
| US4581263A (en) * | 1984-08-27 | 1986-04-08 | Fiber Materials, Inc. | Graphite fiber mold |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01167584A (en) * | 1987-12-21 | 1989-07-03 | Kureha Chem Ind Co Ltd | Carbon fiber series heat insulating material |
| JPH0250079A (en) * | 1988-08-09 | 1990-02-20 | Kanto Yakin Kogyo Kk | High-temperature heating furnace |
| JPH0434068B2 (en) * | 1988-08-09 | 1992-06-04 | Kanto Yakin Kogyo |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6356471B2 (en) | 1988-11-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |