JPH0339887A - Atmosphere heat treatment method and its device - Google Patents
Atmosphere heat treatment method and its deviceInfo
- Publication number
- JPH0339887A JPH0339887A JP17319089A JP17319089A JPH0339887A JP H0339887 A JPH0339887 A JP H0339887A JP 17319089 A JP17319089 A JP 17319089A JP 17319089 A JP17319089 A JP 17319089A JP H0339887 A JPH0339887 A JP H0339887A
- Authority
- JP
- Japan
- Prior art keywords
- atmosphere
- conveyor belt
- furnace
- heat treatment
- workpieces
- 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
- 239000012298 atmosphere Substances 0.000 title claims abstract description 31
- 238000010438 heat treatment Methods 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title claims description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 25
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 17
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 6
- 239000010439 graphite Substances 0.000 claims abstract description 6
- 239000000835 fiber Substances 0.000 claims abstract 3
- 239000011261 inert gas Substances 0.000 claims 2
- 239000007789 gas Substances 0.000 abstract description 13
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 6
- 238000001816 cooling Methods 0.000 abstract description 6
- 230000003647 oxidation Effects 0.000 abstract description 5
- 238000007254 oxidation reaction Methods 0.000 abstract description 5
- 238000011109 contamination Methods 0.000 abstract description 4
- 229910001873 dinitrogen Inorganic materials 0.000 abstract description 4
- 239000000203 mixture Substances 0.000 abstract description 3
- 229920000049 Carbon (fiber) Polymers 0.000 abstract description 2
- 239000011230 binding agent Substances 0.000 abstract description 2
- 239000004917 carbon fiber Substances 0.000 abstract description 2
- 238000000465 moulding Methods 0.000 abstract description 2
- 239000011347 resin Substances 0.000 abstract description 2
- 229920005989 resin Polymers 0.000 abstract description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract 1
- 238000006467 substitution reaction Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 239000012299 nitrogen atmosphere Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 229910021383 artificial graphite Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002090 carbon oxide Inorganic materials 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 238000005087 graphitization Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
Landscapes
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
- Tunnel Furnaces (AREA)
Abstract
Description
【発明の詳細な説明】
（イ）産業上の利用分野
本発明は、処理品を炭素質又は黒鉛質繊維強化炭素型の
コンベアーベルトで搬送して、該処理品を雰囲気中で高
温で加熱する方法に関するものである０本発明はまた、
かかる方法に好適に用い得る装置をも提供するものであ
る。DETAILED DESCRIPTION OF THE INVENTION (a) Industrial application field The present invention conveys a processed product using a carbonaceous or graphite fiber-reinforced carbon type conveyor belt, and heats the processed product at a high temperature in an atmosphere. The present invention also relates to a method.
The present invention also provides an apparatus that can be suitably used in such a method.
（ロ）問題点とその解決方法
上記した如き高温雰囲気加熱処理方法とその装置に用い
られるコンベアーベルトは、第１図において符号５で示
されているが、かかるコンベアーベルトは通常雰囲気炉
をａｔする加熱室ｌや冷却室２などを通過して処理品を
搬送した後、炉外に出て大気中を通り再び処理品を搬送
する。(b) Problems and their solutions The conveyor belt used in the above-described high-temperature atmosphere heat treatment method and its apparatus is indicated by the reference numeral 5 in FIG. After passing through the heating chamber 1, the cooling chamber 2, etc., and transporting the processed product, it exits the furnace, passes through the atmosphere, and is transported again.
ところが、雰囲気炉中の高温に耐え得るように炭素質又
は黒鉛質繊維強化炭素でコンベアーベルトを作り、これ
を雰囲気高温熱処理炉中を経て循環すると、高温には誠
に良く耐え得るが、以下に述べる通りの思わぬ不都合が
見出された。However, if a conveyor belt is made of carbonaceous or graphite fiber-reinforced carbon to withstand the high temperatures in an atmospheric furnace and then circulated through an atmospheric high-temperature heat treatment furnace, it can withstand the high temperatures quite well, but as described below. An unexpected inconvenience was discovered on the street.
このようなコンベアーベルトを構成する炭素材は２０〜
３０％はどの気孔率を有するもので、これが以下の実施
例の如くに１０００〜３０００”Ｃの高温に加熱される
と、その炭素が非常に活性化されて、コンベアーベルト
が周囲のガスや蒸気を吸着することになる。The carbon material that makes up such a conveyor belt is 20~
What porosity does 30% have? When this is heated to a high temperature of 1000 to 3000"C as in the example below, the carbon becomes highly activated and the conveyor belt absorbs the surrounding gas and steam. will be absorbed.
即ち、循環するコンベアーベルトは所定の雰囲気下に保
たれた炉外の回路を通るとき、空気中の酸素や水蒸気又
は大気中に混じる無機あるいは心機の溶剤ガスなどを吸
着し、循環して再び炉中にλるど加熱室で加熱されてコ
ンベアーベルトに吸着シたこれらが燃焼すると共に、コ
ンベアーベルトから放出された炭酸ガス、−酸化炭素、
水素、窒素その他が処理品と反応して処理品を汚染する
ことになる。In other words, as the circulating conveyor belt passes through a circuit outside the furnace maintained in a predetermined atmosphere, it adsorbs oxygen and water vapor in the air, as well as inorganic and core solvent gases mixed in the atmosphere, and circulates them back into the furnace. During heating in the heating chamber, these adsorbed onto the conveyor belt burn, and at the same time, carbon dioxide gas, - carbon oxide, released from the conveyor belt.
Hydrogen, nitrogen, and others will react with the processed product and contaminate it.
特に、雰囲気熱処理装置がおかれているのと同じ建物内
に処理品の酸洗い場や溶剤による洗浄槽がおかれている
場合には、これらの蒸気をコンベアーベルトが吸着しや
すくなり、処理品の汚染はひどくなる。In particular, if a pickling place for processed products or a cleaning tank using a solvent is located in the same building as the atmospheric heat treatment equipment, the conveyor belt will easily absorb these vapors, causing damage to the processed products. Pollution will get worse.
ちなみに、工業用人造黒鉛を室温から１８００℃まで加
熱したときに放出されるガス組成は、Ｈ２が１６％、Ｃ
Ｏ，：１３％、ＣＯ：５６％。By the way, the gas composition released when industrial artificial graphite is heated from room temperature to 1800℃ is 16% H2, C
O: 13%, CO: 56%.
Ｎ、：Ｌ４％等で、その放出量は約５０−見／ｇであり
、本発明が解決しようとするヒ述した不都合がこのこと
からも分るものと思う。When the amount of N, :L is 4%, etc., the amount released is about 50 mm/g, and I believe that the above-mentioned disadvantages that the present invention aims to solve can be understood from this fact.
このような不都合を解決するために、本発明でｌよ炭素
質又は黒鉛質繊維強化炭素からなるコンベアーベルトが
雰囲気炉外を循環する回路中で不必要な１１５染物質を
吸着しないように、雰囲気炉外でも密閉され不活？ｌＥ
ガス雰囲気下に保たれた回路中を通り得るようにしたも
のである。In order to solve such inconveniences, in the present invention, a conveyor belt made of carbonaceous or graphite fiber-reinforced carbon is circulated outside the atmosphere furnace in a circuit in which an unnecessary 115 dyeing substance is not adsorbed. Is it sealed and inactive even outside the furnace? lE
It is designed so that it can pass through a circuit maintained under a gas atmosphere.
なお、本発明は炭素質又は黒鉛質１ａ維強化炭素で作ら
れたコンベアーベルトが循環して処理品を搬送すること
を条件とした雰囲気熱処理方法とその装置についてのも
のであって、従来のｗ４製のコンベアーベルトを用いた
雰囲気熱処理炉とはその目的と効果を全く異にするもの
であることを強調しておく。The present invention relates to an atmospheric heat treatment method and an apparatus thereof, in which a conveyor belt made of carbonaceous or graphitic 1a fiber-reinforced carbon circulates and conveys the processed product, and the present invention relates to an atmospheric heat treatment method and its apparatus, which are provided with a conveyor belt made of carbonaceous or graphitic 1a fiber-reinforced carbon to circulate and convey the treated product. It should be emphasized that the purpose and effects are completely different from that of an atmospheric heat treatment furnace using a conveyor belt made by the manufacturer.
（ハ）実施例
以下１本発明の方法を第１図に示される実施例を参照し
て更に説明する。(C) Example 1 The method of the present invention will be further explained with reference to the example shown in FIG.
この実施例図は、炭素繊維強化炭素の戒形品紮高温で焼
成する雰囲気熱処理装置であって、焼成すべき処理品８
は装置入口部のテーブルに設けられたローラー７により
矢符フＪ向に移動して、雰囲気窒素ガスＮ、による置換
室３に送られる。処理品は引続いて炭素繊維強化炭素製
のメツシュベルトのコンベアーベルト５に乗り、高温加
熱室１を通って焼成され、冷却室２で冷却された後に熱
処理装置外に送り出される。This embodiment diagram shows an atmospheric heat treatment apparatus for firing carbon fiber-reinforced carbon shaped products at high temperatures.
is moved in the direction of arrow J by a roller 7 provided on a table at the entrance of the apparatus, and is sent to a replacement chamber 3 with atmospheric nitrogen gas N. The treated product is then conveyed onto a mesh belt conveyor belt 5 made of carbon fiber-reinforced carbon, passed through a high-temperature heating chamber 1, fired, cooled in a cooling chamber 2, and then sent out of the heat treatment apparatus.
上記した焼成されるべき処理品８は、炭素ｍ！！のＡ】
織物を重ねてこれにバインダー樹脂と黒鉛粉を混合した
ものを含浸させ、これを加圧下で加熱成形した板状の不
融化処理したものである。The above-mentioned processed product 8 to be fired has carbon m! ! A】
This is a plate-like product that is made by stacking woven fabrics, impregnating them with a mixture of binder resin and graphite powder, and heating and molding them under pressure to make them infusible.
また、辷記したコンベアーベルト５は、ピッチを含浸さ
ｅ３００℃で不融化処理をなし７、その後に６００℃→
１ｏｏｏ℃を経て２５００℃に窒素雰囲気中で加熱して
作られた炭素ｍ維束からなるものである。In addition, the conveyor belt 5 that has been rolled is impregnated with pitch and subjected to infusibility treatment at 300°C, and then heated to 600°C→
It is made of carbon fibers made by heating at 100°C and then 2500°C in a nitrogen atmosphere.
Ｌ述した通り、処理品の成形板は加熱室で昇温され、連
続して炭素化処理又は黒鉛化処理されるもので、該加熱
室の温度は炭化処理の場合は１０００〜１３００℃、黒
鉛化処理の場合は２０００〜３０００℃とした。As mentioned above, the temperature of the molded plate of the treated product is raised in a heating chamber and then subjected to continuous carbonization or graphitization treatment. In the case of chemical treatment, the temperature was 2000 to 3000°C.
雰囲気ガス入口９より送られて加熱室１．冷却室２．置
換室３に入り雰囲気ガス排出口１０より排気される雰囲
気ガスは、２０００℃まアは窒素ガス、２０００℃以上
はアルゴンガスを使用１゜た。Atmospheric gas is sent from the inlet 9 to the heating chamber 1. Cooling room 2. The atmospheric gas that entered the replacement chamber 3 and was exhausted from the atmospheric gas outlet 10 was nitrogen gas at 2000°C or higher, and argon gas at 2000°C or higher.
処理品の通過侍間は６〜１２時間とした。The time required for the processed products to pass was 6 to 12 hours.
循環するコンベアー′（：ルト５が復路にて通過する回
路をなすコンベアー駆動部６とコンベアーリターン部１
１を大気から閉鎖した保護通路とＬ７、この中に雰囲気
ガス入ｒ１９より窒素ガスを送って窒素雰囲気１下にお
いた。Circulating conveyor' (conveyor drive unit 6 and conveyor return unit 1 forming a circuit through which the route 5 passes on the return route)
1 was closed from the atmosphere and a protective passage L7, and nitrogen gas was sent into this from an atmosphere gas input r19 to place the tube under a nitrogen atmosphere 1.
このようにして、コンベアーベルト５が加熱室見と冷却
室２を通Ａ後に室外に出て空気中を通るのを防いだ、従
って、コンベアーベルｌ−５カ空気中の酸素、水素その
他のガスや蒸気を吸着１２、加熱室ｌでこれらを放出し
て、処理品８が酸化又は汚染するのを防いだ、４は雰囲
気を遮断するための扉である。In this way, the conveyor belt 5 is prevented from passing through the heating chamber and the cooling chamber 2 into the air outside the room, thus preventing the conveyor belt 5 from passing through the air into the air. 12 adsorbs and vapors and releases them in the heating chamber 1 to prevent oxidation or contamination of the processed product 8. 4 is a door for shutting off the atmosphere.
上述のようにして処理された成形板の引っ張り強度は３
０〜４０ Ｋｇ／ ｍｍ”であり、焼成による所期の強
度が得られた。また、かくして得られた成形板には上述
した原因になる酸化や汚染は認められなかった。The tensile strength of the formed plate treated as described above is 3
0 to 40 Kg/mm'', and the desired strength was obtained by firing. In addition, no oxidation or contamination, which would cause the above-mentioned causes, was observed in the thus obtained molded plate.
コンベアーベルト５は上記した高温に耐え、高温下でも
充分な引っ張り強度をもって長時間の循環運転をするこ
とができた。The conveyor belt 5 withstood the above-mentioned high temperatures and was able to perform long-time circulation operation with sufficient tensile strength even at high temperatures.
（ニ）発明の効果
上述した通り、本発明によれば高温下での循環運転に誠
に適した炭素質又は黒鉛質繊維強化炭素酸のコンベアー
ベルトが、処理品を酸化、汚染する等の不都合を生じる
ことなく雰囲気高温熱処理方法に採用することできる卓
越した効果を有するものである。(D) Effects of the Invention As mentioned above, according to the present invention, the conveyor belt of carbonaceous or graphite fiber-reinforced carbon acid, which is truly suitable for circulation operation at high temperatures, avoids inconveniences such as oxidation and contamination of processed products. It has an outstanding effect that it can be used in an atmospheric high temperature heat treatment method without causing any oxidation.
第１図は本発明の方法を行なうために好適な一例である
連続雰囲気熱処理炉の説明図である。
符号説明
１−加熱室 ２−冷却室 ３−Ｍ検案 ４−扉５−コン
ベアーベルト ６−コンベアー１１１ Ｄ ｌ’ ５ム
７−送りローラー ８−処理品 ９−雰囲気ガス入口
ｌＯ−雰囲気ガス拝出ロ
１ｌ−ＩＪターンコンベアー保護通路
特
許
出
願
人
関東冶金工業株式会社
代
理
人FIG. 1 is an explanatory diagram of a continuous atmosphere heat treatment furnace which is a suitable example for carrying out the method of the present invention. Symbol explanation 1-Heating chamber 2-Cooling chamber 3-M inspection 4-Door 5-Conveyor belt 6-Conveyor 111 D l' 5m 7-Feed roller 8-Processed product 9-Atmosphere gas inlet 1O-Atmosphere gas outlet 1l-IJ Turn Conveyor Protection Passage Patent Applicant Kanto Yakin Kogyo Co., Ltd. Agent
Claims (2)
り処理品を搬送して該処理品を該雰囲気炉中で雰囲気熱
処理する方法において、該コンベアーベルトを炭素質又
は黒鉛質繊維強化炭素で作り、該コンベアーベルトの雰
囲気炉外の循環回路を上記した雰囲気炉中の雰囲気と同
一の雰囲気下又は不活性ガス雰囲気下におくことを特徴
する雰囲気熱処理方法。(1) In a method in which the processed product is conveyed by a conveyor belt that circulates through an atmospheric furnace and the processed product is subjected to atmospheric heat treatment in the atmospheric furnace, the conveyor belt is made of carbonaceous or graphitic fiber-reinforced carbon; An atmospheric heat treatment method characterized in that a circulation circuit outside the atmosphere furnace of the conveyor belt is placed under the same atmosphere as the atmosphere in the above-mentioned atmosphere furnace or under an inert gas atmosphere.
るコンベアーベルトを有する雰囲気熱処理装置にであっ
て、該コンベアーベルトは炭素質又は黒鉛質繊維強化炭
素からなり、かつ該コンベアーベルトが循環通過する雰
囲気炉外の回路が閉鎖された空間をなし、この閉鎖され
た空間が上記した雰囲気炉中の雰囲気と同一の雰囲気又
は不活性ガス雰囲気下におかれていることを特徴とする
雰囲気熱処理装置。(2) An atmospheric heat treatment apparatus having a conveyor belt that circulates through an atmospheric furnace to convey the processed product, the conveyor belt being made of carbonaceous or graphite fiber reinforced carbon, and the conveyor belt circulating through the atmosphere furnace. Atmospheric heat treatment, characterized in that the circuit outside the atmosphere furnace that is passed through forms a closed space, and this closed space is placed in the same atmosphere as the atmosphere in the above-mentioned atmosphere furnace or under an inert gas atmosphere. Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17319089A JPH0339887A (en) | 1989-07-05 | 1989-07-05 | Atmosphere heat treatment method and its device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17319089A JPH0339887A (en) | 1989-07-05 | 1989-07-05 | Atmosphere heat treatment method and its device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0339887A true JPH0339887A (en) | 1991-02-20 |
| JPH0411786B2 JPH0411786B2 (en) | 1992-03-02 |
Family
ID=15955765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17319089A Granted JPH0339887A (en) | 1989-07-05 | 1989-07-05 | Atmosphere heat treatment method and its device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0339887A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06347424A (en) * | 1993-06-08 | 1994-12-22 | Hamamatsu Photonics Kk | Soft x-ray nondestructive examination device |
| JP2007127335A (en) * | 2005-11-04 | 2007-05-24 | Sanden Corp | Cooling system |
| KR100947422B1 (en) * | 2007-11-27 | 2010-03-12 | 박상건 | Heat treatment apparatus |
| KR101039128B1 (en) * | 2008-04-29 | 2011-06-07 | 허혁재 | Continuous furnace |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021039677A1 (en) * | 2019-08-27 | 2021-03-04 | 関東冶金工業株式会社 | Heat treatment furnace |
-
1989
- 1989-07-05 JP JP17319089A patent/JPH0339887A/en active Granted
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06347424A (en) * | 1993-06-08 | 1994-12-22 | Hamamatsu Photonics Kk | Soft x-ray nondestructive examination device |
| JP2007127335A (en) * | 2005-11-04 | 2007-05-24 | Sanden Corp | Cooling system |
| KR100947422B1 (en) * | 2007-11-27 | 2010-03-12 | 박상건 | Heat treatment apparatus |
| KR101039128B1 (en) * | 2008-04-29 | 2011-06-07 | 허혁재 | Continuous furnace |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0411786B2 (en) | 1992-03-02 |
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