JPS61158808A - Induction heating graphitization furnace and method for graphitization - Google Patents

Induction heating graphitization furnace and method for graphitization

Info

Publication number
JPS61158808A
JPS61158808A JP59280787A JP28078784A JPS61158808A JP S61158808 A JPS61158808 A JP S61158808A JP 59280787 A JP59280787 A JP 59280787A JP 28078784 A JP28078784 A JP 28078784A JP S61158808 A JPS61158808 A JP S61158808A
Authority
JP
Japan
Prior art keywords
furnace
graphitization
heater
induction heating
heated
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
Application number
JP59280787A
Other languages
Japanese (ja)
Other versions
JPH0569767B2 (en
Inventor
Tatsuji Suzuki
鈴木　辰二
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Coorstek KK
Original Assignee
Toshiba Ceramics Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Toshiba Ceramics Co Ltd filed Critical Toshiba Ceramics Co Ltd
Priority to JP59280787A priority Critical patent/JPS61158808A/en
Publication of JPS61158808A publication Critical patent/JPS61158808A/en
Publication of JPH0569767B2 publication Critical patent/JPH0569767B2/ja
Granted legal-status Critical Current

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/10—Process efficiency

Abstract

PURPOSE:To enable the baking and graphitization in single furnace, to prevent the breakage of the product during transfer, and to improve the heat-efficiency, by attaching a graphite heater to the inner wall of an induction-heating graphitization furnace. CONSTITUTION:An induction-heatig coil 3 embedded in a castable refractory 2 is placed to the outer circumference of a heat-insulation material 1, and a graphite heater 4 is attached to the inner surface of the insulation material 1 of the furnace. A molded carbon article 5 is put into the space in the heater 4 and the atmosphere in the furnace is made nonoxidative by passing N2 gas into the furnace or filling C powder in the furnace. The heater 4 is heated with the coil 3, and the molded article 5 is heated and baked at a prescribed temperature by the radiant heat of the heater. The baked article heatable by induction heating and the heater 4 are heated with the coil 3 to a prescribed high temperature by the heat conduction in the baked article and the radiant heat from the heater 4 to effect graphitization of the baked article.

Description

【発明の詳細な説明】 〔発明の技術分野〕 本発明は誘導加熱黒鉛化炉及び黒鉛化方法に関し、特に
炭素成形品の焼成及び黒鉛化を１つの炉で行なうために
使用されるものである。[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to an induction heating graphitization furnace and a graphitization method, and is particularly used for firing and graphitizing a carbon molded product in one furnace. .

〔発明の技術的背景〕[Technical background of the invention]

従来、炭素成形品の黒鉛化は以下のようにして行なわれ
ていた。すなわち、まず炭素成形品を焼成炉内において
８００〜９００　’Ｏに加熱し、Ａイングー等を揮散さ
せて焼成する。次に、焼成体を焼成炉から取出し、黒鉛
化炉に移して誘導加熱により約３０００℃で黒鉛化を行
なう。Conventionally, graphitization of carbon molded products has been carried out as follows. That is, first, the carbon molded product is heated to 800 to 900'O in a firing furnace to volatilize Aingoo and the like and then fired. Next, the fired body is taken out from the firing furnace, transferred to a graphitization furnace, and graphitized at about 3000° C. by induction heating.

このように黒鉛化炉へ入れる前に焼成するのは、炭素成
形体は誘導加熱によっては発熱せず、焼成体でなければ
誘導加熱することができないためである。The reason why the carbon molded body is fired before entering the graphitization furnace is that the carbon molded body does not generate heat by induction heating, and induction heating cannot be performed unless it is a fired body.

〔背景技術の問題点〕[Problems with background technology]

上述した従来の黒鉛化技術では、焼成から黒鉛化への過
程で物品を炉から他の炉へ移動させなければならず、こ
の際に破損させることがあった。In the conventional graphitization techniques described above, the article must be moved from one furnace to another during the process from firing to graphitization, and may be damaged during this process.

また、２つの炉を用いているため、各々の炉を所定の温
度まで昇温しなければならず、非常に非効率的であった
・ 〔発明の目的〕 本発明は上記欠点を解消するためになされたものであり
、１つの炉で焼成及び黒鉛化を行なうことにより移動に
伴なう物品の破損を防止するとともに熱効率を向上し得
る誘導加熱黒鉛化炉及び黒錯化方法を提供しようとする
ものである。In addition, since two furnaces are used, each furnace must be heated to a predetermined temperature, which is extremely inefficient. [Objective of the Invention] The present invention aims to eliminate the above drawbacks. It is an object of the present invention to provide an induction heating graphitization furnace and a black complexation method that can prevent damage to articles during movement and improve thermal efficiency by performing firing and graphitization in one furnace. It is something to do.

〔発明の概要〕[Summary of the invention]

禾Ｗ！Ｊ７ＪＩＪ１の発明の誘導加熱黒鉛化炉は、誘導
加熱炉の炉壁内面に黒鉛ヒーターを設けたことを特徴と
するものである。Hey W! The induction heating graphitization furnace of the invention of J7JIJ1 is characterized in that a graphite heater is provided on the inner surface of the furnace wall of the induction heating furnace.

また、本即第２の発明の黒鉛化方法は１本願第１の発明
の誘導加熱黒鉛化炉を用い、誘導加熱コイルによって黒
鉛ヒーターを誘導加熱し、該黒鉛ヒーターの輻射熱によ
り炭素成形品を焼成した後、更に誘導加熱コイルにより
焼成体及び黒鉛ヒーターを加熱し、熱伝導及び輻射熱に
より焼成体を黒鉛化することを特徴とするものである。Further, the graphitization method of the second invention uses the induction heating graphitization furnace of the first invention of the present application, inductively heats a graphite heater with an induction heating coil, and fires a carbon molded product by the radiant heat of the graphite heater. After that, the fired body and graphite heater are further heated by an induction heating coil, and the fired body is graphitized by heat conduction and radiant heat.

このような誘導加熱黒鉛化炉及び黒鉛化方法によれば、
１つの炉で焼成及び黒鉛化を行なうことができるので、
移動に伴なう物品の破損や熱効率の低下が生じない。According to such an induction heating graphitization furnace and graphitization method,
Since firing and graphitization can be performed in one furnace,
There is no damage to the goods or a decrease in thermal efficiency due to movement.

〔発明の実施例〕 県下、本発明の実施例を図面を参照して説明する。[Embodiments of the invention] Embodiments of the present invention will now be described with reference to the drawings.

図において、断熱材１の外局にはキャスタブル耐火物２
中に埋設された誘導加熱コイル３が配設されている。ま
た、断熱材１の炉壁内面には黒鉛ヒーター４が配設され
ている。炭素成形品５は、この黒鉛ヒーター４の内側に
収容される。In the figure, a castable refractory 2 is placed outside the insulation 1.
An induction heating coil 3 embedded therein is disposed. Further, a graphite heater 4 is disposed on the inner surface of the furnace wall of the heat insulating material 1. The carbon molded product 5 is housed inside this graphite heater 4.

前記断熱材１としてはセラミックファイバー、カーボン
ファイバー、カーボンブラック等の通常の断熱材が用い
られる。また、誘導加熱コイル３には５００Ｈｚ〜１　
ｋＨｚの高周波電圧が印加される。As the heat insulating material 1, a normal heat insulating material such as ceramic fiber, carbon fiber, carbon black, etc. is used. In addition, the induction heating coil 3 has a frequency of 500Hz to 1
A high frequency voltage of kHz is applied.

上記誘導加熱黒鉛化炉を用いた黒鉛化の方法を説明する
。A graphitization method using the above induction heating graphitization furnace will be explained.

まず、炉内にＮ２ガスを流すか、又はＣ粉を充填するこ
とにより炉内雰囲気を非酸化性とする。First, the atmosphere inside the furnace is made non-oxidizing by flowing N2 gas into the furnace or filling it with C powder.

次に、誘導加熱コイル３により黒鉛ヒーター４を加熱し
、その輻射熱により炭素成形品５を８００〜９００″Ｃ
に加熱して焼成する。つづいて、誘導加熱コイル３によ
り誘導加熱が可能となった焼成体及び黒鉛ヒーター４を
加熱し、焼成体内の熱伝導及び黒鉛ヒーター４からの輻
射熱により焼成体を約３０００℃に加熱して焼成体を黒
鉛化する。Next, the graphite heater 4 is heated by the induction heating coil 3, and the carbon molded product 5 is heated to 800 to 900''C by the radiant heat.
Heat and bake. Next, the fired body and the graphite heater 4, which can be heated by induction using the induction heating coil 3, are heated, and the fired body is heated to about 3000°C by heat conduction within the fired body and radiant heat from the graphite heater 4, and the fired body is heated to approximately 3000°C. Graphitize.

しかして、上記誘導加熱黒鉛化炉及び黒鉛化方法によれ
ば、１つの炉内で炭素成形品５の焼成及び黒鉛化を連続
的に行なうことができる。このため、焼成から黒鉛化へ
の過程で物品を移動させる必要がなく、物品の破損が著
しく減少する。また、１つの炉の温度を連続的に昇温し
ていけばよいので、８効率が向上する。したがって、生
産性が著しく向上するものである。According to the induction heating graphitization furnace and graphitization method described above, the carbon molded product 5 can be continuously fired and graphitized in one furnace. Therefore, there is no need to move the article during the process from firing to graphitization, and damage to the article is significantly reduced. Furthermore, since the temperature of one furnace only needs to be raised continuously, efficiency is improved. Therefore, productivity is significantly improved.

〔発明の効果〕〔Effect of the invention〕

以上説明した如く本発明の誘導加熱黒鉛化炉及び黒鉛化
方法によれば、１つの炉で焼成及び黒鉛化を行なうこと
ができ、物品の破損を減少し、熱効率を向上させること
により生産性を大幅に向上できるものである。As explained above, according to the induction heating graphitization furnace and graphitization method of the present invention, firing and graphitization can be performed in one furnace, reducing damage to articles and improving thermal efficiency, thereby increasing productivity. This can be significantly improved.

【図面の簡単な説明】[Brief explanation of the drawing]

図は本発明の実施例における誘導加熱黒鉛化炉の断面図
である。 ｌ・・・断熱材、２・・・キャスタブル耐火物、３・・
・誘導加熱コイル、４・・・黒鉛ヒーター、５・・・炭
素成形品。The figure is a sectional view of an induction heating graphitization furnace in an embodiment of the present invention. l...Insulating material, 2...Castable refractory, 3...
- Induction heating coil, 4... graphite heater, 5... carbon molded product.

Claims (2)

【特許請求の範囲】[Claims] （１）誘導加熱炉の炉壁内面に黒鉛ヒーターを設けたこ
とを特徴とする誘導加熱黒鉛化炉。(1) An induction heating graphitization furnace characterized in that a graphite heater is provided on the inner surface of the furnace wall of the induction heating furnace. （２）誘導加熱コイルによって黒鉛ヒーターを誘導加熱
し、該黒鉛ヒーターの輻射熱により炭素成形品を焼成し
た後、更に誘導加熱コイルにより焼成体及び黒鉛ヒータ
ーを加熱し、熱伝導及び輻射熱により焼成体を黒鉛化す
ることを特徴とする黒鉛化方法。(2) After inductively heating a graphite heater with an induction heating coil and firing the carbon molded product with the radiant heat of the graphite heater, the fired body and graphite heater are further heated with the induction heating coil, and the fired body is heated by heat conduction and radiant heat. A graphitization method characterized by graphitization.
JP59280787A 1984-12-28 1984-12-28 Induction heating graphitization furnace and method for graphitization Granted JPS61158808A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59280787A JPS61158808A (en) 1984-12-28 1984-12-28 Induction heating graphitization furnace and method for graphitization

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59280787A JPS61158808A (en) 1984-12-28 1984-12-28 Induction heating graphitization furnace and method for graphitization

Publications (2)

Publication Number Publication Date
JPS61158808A true JPS61158808A (en) 1986-07-18
JPH0569767B2 JPH0569767B2 (en) 1993-10-01

Family

ID=17629947

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59280787A Granted JPS61158808A (en) 1984-12-28 1984-12-28 Induction heating graphitization furnace and method for graphitization

Country Status (1)

Country Link
JP (1) JPS61158808A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6379759A (en) * 1986-09-22 1988-04-09 東洋炭素株式会社 Manufacture of high purity graphite material and manufacturing apparatus therefor
EP0612703A1 (en) * 1993-02-23 1994-08-31 Le Carbone Lorraine Process for rapid manufacture of carbonaceous products
KR100893754B1 (en) 2007-09-13 2009-04-17 주식회사 포스코 Induction heating furnace
CN107655333A (en) * 2016-07-26 2018-02-02 株洲晨昕中高频设备有限公司 A kind of compound-heating heat-treatment furnace
WO2023189752A1 (en) * 2022-03-28 2023-10-05 株式会社Ｉｈｉ機械システム Heat treatment device and heat treatment method

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50118986A (en) * 1974-03-02 1975-09-18
JPS56109808A (en) * 1980-02-05 1981-08-31 Inoue Japax Res Inc Graphite sintering apparatus
JPS57118014A (en) * 1981-01-14 1982-07-22 Mitsubishi Electric Corp Manufacture of silicon carbide
JPS58176180A (en) * 1982-04-12 1983-10-15 イビデン株式会社 Manufacture of carbon material

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50118986A (en) * 1974-03-02 1975-09-18
JPS56109808A (en) * 1980-02-05 1981-08-31 Inoue Japax Res Inc Graphite sintering apparatus
JPS57118014A (en) * 1981-01-14 1982-07-22 Mitsubishi Electric Corp Manufacture of silicon carbide
JPS58176180A (en) * 1982-04-12 1983-10-15 イビデン株式会社 Manufacture of carbon material

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6379759A (en) * 1986-09-22 1988-04-09 東洋炭素株式会社 Manufacture of high purity graphite material and manufacturing apparatus therefor
JPH05294725A (en) * 1986-09-22 1993-11-09 Toyo Tanso Kk Production device for high purity graphite material
EP0612703A1 (en) * 1993-02-23 1994-08-31 Le Carbone Lorraine Process for rapid manufacture of carbonaceous products
FR2701941A1 (en) * 1993-02-23 1994-09-02 Lorraine Carbone Process for the rapid production of carbon products.
US5609815A (en) * 1993-02-23 1997-03-11 Le Carbone Lorraine Process for fast manufacturing of carbonaceous products
KR100893754B1 (en) 2007-09-13 2009-04-17 주식회사 포스코 Induction heating furnace
CN107655333A (en) * 2016-07-26 2018-02-02 株洲晨昕中高频设备有限公司 A kind of compound-heating heat-treatment furnace
CN107655333B (en) * 2016-07-26 2023-12-05 株洲晨昕中高频设备有限公司 Composite heating type heat treatment furnace
WO2023189752A1 (en) * 2022-03-28 2023-10-05 株式会社Ｉｈｉ機械システム Heat treatment device and heat treatment method

Also Published As

Publication number Publication date
JPH0569767B2 (en) 1993-10-01

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