JPS58208433A - Hot air type heating oven - Google Patents
Hot air type heating ovenInfo
- Publication number
- JPS58208433A JPS58208433A JP57088116A JP8811682A JPS58208433A JP S58208433 A JPS58208433 A JP S58208433A JP 57088116 A JP57088116 A JP 57088116A JP 8811682 A JP8811682 A JP 8811682A JP S58208433 A JPS58208433 A JP S58208433A
- Authority
- JP
- Japan
- Prior art keywords
- hot air
- furnace
- heating furnace
- heat treatment
- yarn
- 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
Classifications
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
- D02J13/00—Heating or cooling the yarn, thread, cord, rope, or the like, not specific to any one of the processes provided for in this subclass
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F9/00—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments
- D01F9/08—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments of inorganic material
- D01F9/12—Carbon filaments; Apparatus specially adapted for the manufacture thereof
- D01F9/14—Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments
- D01F9/32—Apparatus therefor
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Tunnel Furnaces (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (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】
本発明は並行して走行する多糸条を均一に加熱する熱１
１式加熱炉に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention provides a method for uniformly heating multi-filament yarns running in parallel.
This relates to a type 1 heating furnace.
繊陣秋物を加ＰＩＸし、物理的あるいは化学重度ＩＪｋ
をＬｊえる場合、繊維状９勿に熱風を接触させて熱処理
を行なう方式があり、例えば、ホリアクおいては、繊維
状物を各々に適した温度条件および雰囲気条件で熱処理
する際に、熱風を接触させる加熱炉を用いることが一般
である。Add PIX to textiles, physically or chemically severe IJk
When obtaining Lj, there is a method of heat treatment by bringing hot air into contact with the fibrous material. For example, in Horiaku, when heat treating the fibrous material under temperature and atmospheric conditions suitable for each, hot air is used to heat the fibrous material. It is common to use a heating furnace for contact.
この熱処理過程における温度履歴は品質に大きく影響す
るので、仲維状物を複数本のフィラメントとして並行に
走行させるいわゆる多糸条同時処理方式では各糸条間の
温度履歴に実質的に差異が無いことが必要であり、これ
は設備上で炉内全域にわたって各糸条間の温度ばらつき
が実質的に無いことを要求することになる。The temperature history during this heat treatment process greatly affects the quality, so in the so-called multi-filament simultaneous processing method in which multiple filaments are run in parallel, there is virtually no difference in the temperature history between each yarn. This requires the equipment to have substantially no temperature variation between yarns throughout the furnace.
従って、前記熱風式加熱炉においては、炉内ｋｔおける
温度均一性を保つため、風速の均一性か極めて重要であ
る。にもかかわらず、熱風式を耐炎化する工程において
用いられる熱風式加熱炉すなわち酎を化炉は炉内に熱風
を循環するためＩ′（、炉の端部に設けた熱風吹出口と
、熱風吸込口とを、炉外において循環ファンとヒーター
を介在させたダクトで接続するのが普通である。Therefore, in the hot air heating furnace, uniformity of the wind speed is extremely important in order to maintain temperature uniformity within the furnace kt. Nevertheless, the hot air heating furnace used in the process of flameproofing hot air heating furnaces, i.e., the hot air heating furnace, circulates hot air within the furnace. Usually, the suction port is connected to the furnace outside the furnace by a duct with a circulation fan and a heater interposed therebetween.
しかしながら、熱風吹出口からの熱風は特に熱風吹出口
付近の形状の影響を受けて気流が乱れ、風速が糸条間で
不均一になる傾向があった。この結果、炉内温度が糸条
群間で不均一となって品質のばらつきを大きくしたり、
極端な場合には糸切れを発生し、連続操業に支障をきた
したりしていた。However, the hot air from the hot air outlet tends to be affected by the shape of the vicinity of the hot air outlet, resulting in turbulent airflow and uneven wind speed between yarns. As a result, the temperature inside the furnace becomes uneven between yarn groups, increasing the variation in quality,
In extreme cases, thread breakage may occur, disrupting continuous operation.
本発明の目的はかかる従来の欠点を改良し、加熱炉内を
並行して走行する各糸条に対して吹きつける風速を均一
にし、ひいては温度ばらつきを少なくする熱風式加熱炉
を提供せんとするものである。The purpose of the present invention is to improve such conventional drawbacks, and to provide a hot air heating furnace that can uniformize the speed of air blowing onto each yarn running in parallel in the heating furnace, and thereby reduce temperature variations. It is something.
かかる目的を達成する本発明の構成は、並行して走行す
る多糸条を処理する熱風式加熱炉において、該走行糸条
群面に沼って熱風を吹出す′（熱風吹出面を設け、該熱
風吹出面に対して熱風を向わせるための方向変換用案内
羽根とその４ｆ１後の一方もしくは双方に整流用金網ま
たは多孔板を配設した熱風式加熱炉である。The configuration of the present invention to achieve such an object is that, in a hot air heating furnace that processes multiple threads running in parallel, hot air is blown out on the surface of the running threads (a hot air blowing surface is provided, This hot air heating furnace is provided with a direction changing guide vane for directing the hot air toward the hot air blowing surface, and a rectifying wire mesh or a perforated plate on one or both of the guide vanes 4f1 behind the guide vanes.
以下、本発明の熱風式加熱炉をポリアクリロニトリルを
前駆体とする炭素繊維製造用耐炎化炉を例として図面に
基すいて具体的に説明する。Hereinafter, the hot air heating furnace of the present invention will be specifically explained with reference to the drawings, taking as an example a flameproofing furnace for producing carbon fibers using polyacrylonitrile as a precursor.
第１図は本発明の一実施態様である耐炎化炉の止血断面
図であり、また第２図は第１図の側面図である。FIG. 1 is a hemostatic sectional view of a flameproofing furnace that is an embodiment of the present invention, and FIG. 2 is a side view of FIG. 1.
図＆（おいて、糸条２は熱処理室１の下方および上方に
設けられた複数対の案内ローラー３ａ。In FIG.
３ｂ、・・・・５ｅへ順次移送される。一方、熱処理室
１の１・部に設けられた熱風吹出面４から熱風が熱処理
室１内で、並行して走行する糸条２の糸条押面に溢って
吹出され糸条２を熱処理した後、上部の吸込口５より排
出される。前記の吹出面４および吸込口５は、炉外ロー
ラー形式（案内ローラーが炉の外に設けられているもの
）の耐炎化炉においては、糸条２の熱処理室１に出入す
る回数に見合う個数分設けられている。特ＶＣ１本悪様
では熱処理室１の下部に吹出面４を、熱処理室１の上部
ｅＣ吸込口５を設け、熱処理量１内の熱風の流れは下か
ら上へ糸条２の糸条押面に対しほぼ並行となっている。3b, . . . , 5e. On the other hand, hot air is blown out from the hot air blowing surface 4 provided in the 1st section of the heat treatment chamber 1 overflowing onto the yarn pushing surface of the yarn 2 running in parallel in the heat treatment chamber 1, thereby heat treating the yarn 2. After that, it is discharged from the upper suction port 5. In an external roller type flameproofing furnace (in which a guide roller is provided outside the furnace), the number of blowout surfaces 4 and suction ports 5 is equal to the number of times the yarn 2 enters and exits the heat treatment chamber 1. Minutes are provided. In the special case of one VC, a blowout surface 4 is provided at the lower part of the heat treatment chamber 1, and an eC suction port 5 is provided at the upper part of the heat treatment chamber 1, and the hot air in the heat treatment amount 1 flows from the bottom to the yarn pressing surface of the yarn 2. It is almost parallel to the
また、吹出面４に熱風を供給するダクト６Ｉ′ｉ吸込口
５より熱風を排出するダクト７と炉外に設けた熱風を循
環させるファン９および熱風を加熱するヒーター８を介
して接続されている。Further, a duct 6I'i that supplies hot air to the blowing surface 4 is connected to a duct 7 that discharges hot air from the suction port 5 via a fan 9 that circulates hot air and a heater 8 that heats the hot air provided outside the furnace. .
第３図は熱風吹出部の見取図であるが、吹出面４に供給
される熱風はまず方向変換用案内羽根１２の前方に設け
られた整流用金網またけパンチングメタル等の多孔板１
１により整流された後、吹出箱１３に入り、方向を案内
羽根１２によりほぼ直角方向に変換させられる。案内羽
根は循環ダクト６からの熱風を方向変換したい位（ａに
複数個設けられている。FIG. 3 is a sketch of the hot air blowing section. The hot air supplied to the blowing surface 4 is first supplied to a perforated plate 1 such as a perforated metal plate covered with a wire mesh for rectification provided in front of the guide vane 12 for direction conversion.
After being rectified by 1, the air enters the air outlet box 13, and its direction is changed by the guide vane 12 into a substantially right-angled direction. A plurality of guide vanes are provided at the desired location (a) to change the direction of the hot air from the circulation duct 6.
第５図においては、糸条の全幅に対〔て熱風が方向変換
される如く、案内羽根を循環ダクトの最も近い位置にお
いて最上部に、遠い位置において最Ｆ Ｂ４５になるよ
うに一次階段状に配設しであるが、配設けこの逆でもよ
い。また、案内羽根は吹出箱の幅に近接した幅を有する
ことが好ま【−い。In Fig. 5, the guide vanes are arranged in a first step shape so that the direction of the hot air is changed over the entire width of the yarn, with the guide vanes being at the top at the closest position of the circulation duct and at the furthest position at F B45. However, the arrangement may be reversed. Further, it is preferable that the guide vane has a width close to the width of the blowing box.
通常、案内羽根は１／４円孤の形状であり、その配置は
ほぼ等間隔になされるが、形状、配置間隔は限定される
ものではない。Usually, the guide vanes have a quarter arc shape and are arranged at approximately equal intervals, but the shape and the arrangement interval are not limited.
案内羽根１２により直角方向に変換された熱風は、さら
に該案内羽根の後方に設けられた整流用金網またはパン
チングメタル等の多孔板１゜により整流される機能をも
つ熱風吹出面４を経て熱処理室１へ吹出される。The hot air converted in the right angle direction by the guide vane 12 is further passed through the hot air blowing surface 4 which has the function of being rectified by a perforated plate 1° such as a rectifying wire mesh or punching metal provided behind the guide vane, and is then sent to the heat treatment chamber. It is blown out to 1.
上述の様に、方向変換用案内羽根１２と、その前後を整
流用金網または多孔板１ｏ、１１で構成することにより
、熱処理室１内の風速均一性は従来に比較して極めて良
好となり、例えば熱処理室１内の平均風速が２ｍ／ｓｅ
ｅである場合、そのばらつきを１．５〜２．５ ｍ／
ｓｅｃ内に容易に調整可能上なった。このように風速ば
らつきが大幅ｒｃ減少したことにより、熱処理室１内の
温度ばらつきも対応して減少したので、熱処理される糸
条２の品質ばらつきは大幅に改善されたことにいうまで
もない。As described above, by configuring the direction changing guide vane 12 and the rectifying wire mesh or perforated plates 1o and 11 before and after the guide vane 12, the uniformity of the wind speed in the heat treatment chamber 1 is extremely good compared to the conventional one. The average wind speed in heat treatment chamber 1 is 2 m/sec.
e, the variation is 1.5 to 2.5 m/
Easily adjustable within sec. Since the variation in wind speed rc has been significantly reduced in this way, the variation in temperature within the heat treatment chamber 1 has also been correspondingly reduced, and it goes without saying that the variation in quality of the yarn 2 to be heat treated has been significantly improved.
番孔板は孔径を３〜８胡、開孔率を６０〜５０チとする
ことが好ましく、孔は板に均等にあけられているのがよ
い。整流用金網も開孔率か６０〜５０％のものを使用す
るのがよい。It is preferable that the perforated plate has a hole diameter of 3 to 8 mm and an aperture ratio of 60 to 50 mm, and the holes are preferably evenly drilled in the plate. It is also preferable to use a rectifying wire mesh with an aperture ratio of 60 to 50%.
本発明では熱風の吸込口５においても、吹出部と同様、
方向変換用案内羽根および多孔板を設ければその効果が
さらに増大するが、本発明の効果の多くは吹出部の構造
によって満足される。In the present invention, in the hot air suction port 5, as well as in the blowout part,
Although the effects of the present invention are further enhanced by providing guide vanes for direction change and a perforated plate, most of the effects of the present invention are satisfied by the structure of the blowing section.
吹出部の構造は第３図の実施態様に限るものではない。The structure of the blowing part is not limited to the embodiment shown in FIG.
第４図は他の熱風吹出部の見取図であり、方向変換用案
内羽根１２の前後に整流用金網１４および多孔板１５を
複数に取イ・１けるものである。。FIG. 4 is a sketch of another hot air blowing section, in which a plurality of rectifying wire meshes 14 and perforated plates 15 are installed before and after the direction changing guide vanes 12. .
第１図〜第４図の態様は、第１図におい−Ｃ紙面に垂直
方向に（第２図では紙面方向）吹出部を向けるものであ
るが、他の実施態様でも可能１［である。In the embodiments shown in FIGS. 1 to 4, the blowing section is directed perpendicularly to the paper surface of -C in FIG. 1 (in the direction of the paper surface in FIG. 2), but other embodiments are also possible.
すなわち、第５図は炉内の走行糸条に対し、第１図にお
ける両端の吹出部のみに対し紙面方向Ｋ（第２図では紙
面ｒ（垂直方向）吹出部を向けた熱風吹出部の見取図で
あり、方向変換用案内羽根１２とその前後を整流用金網
または多孔板１０．１１で構成したものである。In other words, FIG. 5 is a sketch of the hot air blowing section with the blowing section facing in the paper plane direction K (paper plane R (vertical direction) in FIG. The guide vane 12 for direction conversion and the front and rear thereof are composed of wire mesh or perforated plates 10 and 11 for rectification.
本発明においては、方向変換用案内羽根を方向変換自在
とすれば、その調整機能は極めて優れ、例えば熱処理室
１内の風速が糸条２の品質上から任意Ｋ ５Ｊ変とすべ
く要求される場合、その効果は太きい。In the present invention, if the direction changing guide vanes are made to be able to change direction freely, the adjustment function is extremely excellent. For example, the wind speed in the heat treatment chamber 1 is required to be changed arbitrarily by K 5J from the viewpoint of the quality of the yarn 2. In this case, the effect is strong.
図示していないが、熱処理室１内に、ざらＶＣ糸条２の
走行に支障のないような整流用金網等を設けて、一層の
風速均一効果を増大することもできる。Although not shown, it is also possible to provide a rectifying wire mesh or the like in the heat treatment chamber 1 that does not hinder the running of the rough VC yarn 2 to further increase the uniformity of the wind speed.
第１図は本発明の一実施態様を示す耐炎化炉の１に面断
面図、第２図はその側面図である。ざら番ζ第４図およ
び第５図は他の実施態様を示す吹出部の見取図である。
１ ：ＰＡ処理室
２ ：糸 条
３ａ３ｂ：案内ローラ
４ ：熱風吹出面
５ ：熱風吸込口
６．７＝ダク ト
８ ：ヒーター
９ 二ファン
１０．１１ ：整流用金網または多孔板１２：案内羽根
１３゛：吹出箱
１４：整流用金網
１５：多孔板
特許出願人 東 し 株 式 会 神
木Ｉ図 も２図
／Ｚ
名３図
名４図
１２
・ｔ・５ 図 ４７４↑ビ＋ｔ５８−
２“１；
甚耀願人 東し株式１
手 続 補 正 書 （方式）１事件
の表示
昭和５７４「特ｌ「願第 ８８１１６ 号２発明の
名称
熱風式加熱炉
Ｓ補正をする者
事件との関係 特 許 出 願 人生 所 東
京都中央区日本橋室町２丁目２番地昭和５７年８ ＪＪ
３１． ）Ｊ （発送［］）５ 補正により増加する発
明の数 な し６補正のχノ象
明細書の１−図面の簡単な説明」の欄
７補正の内容
別紙のとおり
明 細 書 中
（１）第８Ｌ１．第１７〜１９行１１、［さらに第４図
・・・・・・の見取図である。−１を削除し、次の記載
を挿入する。
［また第３図は熱風吹出部の見取図、さらに第４図およ
び第５図は他の実施態様を示す熱風吹出部の見取図であ
る。ゴFIG. 1 is a cross-sectional view of a flameproofing furnace showing one embodiment of the present invention, and FIG. 2 is a side view thereof. Figures 4 and 5 are sketches of the blowing section showing other embodiments. 1: PA processing chamber 2: Thread 3a3b: Guide roller 4: Hot air blowing surface 5: Hot air suction port 6.7 = duct 8: Heater 9 Two fans 10.11: Rectifying wire mesh or perforated plate 12: Guide vane 13゛: Blowout box 14: Wire mesh for rectification 15: Perforated plate Patent applicant Toshi Co., Ltd. Kamiki I Figure 2 / Z name 3 Figure name 4 Figure 12 ・t・5 Figure 474↑B+t58−
2 "1; Requester Toshi Stock 1 Procedural Amendment (Method) 1 Case Description Showa 574 "Special Application No. 88116 2 Name of Invention Related Patent Application Life Location 2-2 Nihonbashi Muromachi, Chuo-ku, Tokyo 1982 8 JJ
31. ) J (Shipping []) 5 Number of inventions increased by the amendment None 6. Contents of the amendment in Column 7 of “1-Brief explanation of drawings” of the amended description of the χ Description as shown in the attached sheet (1) 8th L1. 17th to 19th rows 11, [Furthermore, a sketch of FIG. 4...]. -1 is deleted and the following statement is inserted. [Also, FIG. 3 is a sketch of the hot air blowing section, and FIGS. 4 and 5 are sketches of the hot air blowing section showing other embodiments. Go
Claims (1)
ＶＣおいて、該走行糸条群面に渚って熱風を吹出す熱風
吹出面を設け、該熱風吹出囲＆Ｃ；（Ｊ して熱風を向
わせるための方向変換用案内羽根とその前後の一方もし
くは双方にも２流用金網または多孔板を配設したことを
特徴と−する熱風゛武力１ｊ熱炉。 （２１Ｊｊ内向変換案内羽根が方向変換自在である特、
ｆ’ｌ請求の範囲第１項記載の熱風式加熱炉。 （３） 熱風式加熱炉が炭素繊維製造用耐炎化炉である
特許請求の範囲第１項記載の熱風式加熱炉３、[Claims] (1) In a hot air heating furnace VC for processing multi-filament threads running in parallel, a hot air blowing surface is provided on the surface of the running thread group to blow out hot air, and the hot air Blowout enclosure &C; Furnace.
f'l A hot air heating furnace according to claim 1. (3) The hot air heating furnace 3 according to claim 1, wherein the hot air heating furnace is a flameproofing furnace for producing carbon fibers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57088116A JPS6030762B2 (en) | 1982-05-26 | 1982-05-26 | Hot air heating furnace for carbon fiber production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57088116A JPS6030762B2 (en) | 1982-05-26 | 1982-05-26 | Hot air heating furnace for carbon fiber production |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58208433A true JPS58208433A (en) | 1983-12-05 |
| JPS6030762B2 JPS6030762B2 (en) | 1985-07-18 |
Family
ID=13933915
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57088116A Expired JPS6030762B2 (en) | 1982-05-26 | 1982-05-26 | Hot air heating furnace for carbon fiber production |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6030762B2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008280640A (en) * | 2007-05-10 | 2008-11-20 | Mitsubishi Rayon Co Ltd | Flameproofing heat-treatment apparatus |
| JP2010500525A (en) * | 2006-08-11 | 2010-01-07 | アイゼンマン アンラゲンバウ ゲゼルシャフト ミット ペシュレンクテル ハフツングウント コンパニー コマンディトゲゼルシャフト | High temperature air furnace module and high temperature air furnace |
| WO2015012311A1 (en) | 2013-07-23 | 2015-01-29 | 三菱レイヨン株式会社 | Gas supply blowout nozzle and method for producing carbon fibers and flameproofed fibers using same |
| JP2017519915A (en) * | 2014-06-20 | 2017-07-20 | アイゼンマン ソシエタス オイロペア | Oxidation furnace |
| JP2018502227A (en) * | 2014-11-07 | 2018-01-25 | イリノイ トゥール ワークス インコーポレイティド | Improved supply plenum for center-to-end fiber oxidation furnace |
| EP3943649A4 (en) * | 2019-03-19 | 2023-05-03 | Toray Industries, Inc. | Flame resistance heat treatment oven, flame-resistant fiber bundles, and method for manufacturing carbon-fiber bundles |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150184941A1 (en) * | 2012-07-02 | 2015-07-02 | Mitsubishi Rayon Co., Ltd. | Method for producing carbon fiber bundle and heating furnace for carbon fiber precursor fiber bundle |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5725462A (en) * | 1980-07-18 | 1982-02-10 | Mitsubishi Rayon Co | Shaft type flame proofness imparting treatment apparatus |
-
1982
- 1982-05-26 JP JP57088116A patent/JPS6030762B2/en not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5725462A (en) * | 1980-07-18 | 1982-02-10 | Mitsubishi Rayon Co | Shaft type flame proofness imparting treatment apparatus |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010500525A (en) * | 2006-08-11 | 2010-01-07 | アイゼンマン アンラゲンバウ ゲゼルシャフト ミット ペシュレンクテル ハフツングウント コンパニー コマンディトゲゼルシャフト | High temperature air furnace module and high temperature air furnace |
| JP2008280640A (en) * | 2007-05-10 | 2008-11-20 | Mitsubishi Rayon Co Ltd | Flameproofing heat-treatment apparatus |
| WO2015012311A1 (en) | 2013-07-23 | 2015-01-29 | 三菱レイヨン株式会社 | Gas supply blowout nozzle and method for producing carbon fibers and flameproofed fibers using same |
| US10472738B2 (en) | 2013-07-23 | 2019-11-12 | Mitsubishi Chemical Corporation | Gas supply blowout nozzle and method of producing flame-proofed fiber and carbon fiber |
| JP2017519915A (en) * | 2014-06-20 | 2017-07-20 | アイゼンマン ソシエタス オイロペア | Oxidation furnace |
| JP2021092382A (en) * | 2014-06-20 | 2021-06-17 | ウォンチュン ゲゼルシャフト ミット ベシュレンクテル ハフツング | Oxidation furnace |
| US11236444B2 (en) | 2014-06-20 | 2022-02-01 | Eisenmann Se | Oxidation furnace |
| JP2018502227A (en) * | 2014-11-07 | 2018-01-25 | イリノイ トゥール ワークス インコーポレイティド | Improved supply plenum for center-to-end fiber oxidation furnace |
| EP3943649A4 (en) * | 2019-03-19 | 2023-05-03 | Toray Industries, Inc. | Flame resistance heat treatment oven, flame-resistant fiber bundles, and method for manufacturing carbon-fiber bundles |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6030762B2 (en) | 1985-07-18 |
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