JPH0726355Y2 - Felt for gas seal of atmosphere annealing furnace for steel strip - Google Patents
Felt for gas seal of atmosphere annealing furnace for steel stripInfo
- Publication number
- JPH0726355Y2 JPH0726355Y2 JP12740988U JP12740988U JPH0726355Y2 JP H0726355 Y2 JPH0726355 Y2 JP H0726355Y2 JP 12740988 U JP12740988 U JP 12740988U JP 12740988 U JP12740988 U JP 12740988U JP H0726355 Y2 JPH0726355 Y2 JP H0726355Y2
- Authority
- JP
- Japan
- Prior art keywords
- felt
- fiber
- annealing furnace
- steel strip
- gas seal
- 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 - Fee Related
Links
Landscapes
- Laminated Bodies (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
- Furnace Details (AREA)
Description
【考案の詳細な説明】 〔産業上の利用分野〕 本考案は、鋼帯用雰囲気焼鈍炉ガスシール用フェルトに
係り、特に耐熱性、すり疵低減効果、耐摩耗性及び経済
性に優れたフェルトに関するものである。[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a felt for an atmosphere annealing furnace gas seal for steel strips, and in particular, a felt excellent in heat resistance, scratch reduction effect, wear resistance and economical efficiency. It is about.
従来より、鋼帯用雰囲気焼鈍炉の入、出口に使用される
ガスシール用フェルトの材料には、純毛（羊毛）が使用
されてきた。Conventionally, pure wool (wool) has been used as a material for the felt for gas seal used at the inlet and outlet of the atmosphere annealing furnace for steel strips.
純毛が主流を占めている背景には、次の理由があった。The reasons why pure hair is the mainstream are as follows.
（１）化学繊維（化繊）に比べ安価であること。(1) It is cheaper than chemical fiber (chemical fiber).
（２）繊維強度が化繊に比べ弱く、かつ、繊維長が短い
こと。従って、鋼帯がシール部を通過する際に鋼帯のエ
ッジに引掛る繊維の長さは短く、シール・フェルト本体
の損耗ダメージも少ないと共に、次工程において繊維に
起因するトラブルも比較的少ない。第１表はこのことを
説明するもので化繊と純毛との比較を示した。(2) The fiber strength is weaker than that of the synthetic fiber and the fiber length is short. Therefore, when the steel strip passes through the seal portion, the length of the fiber caught on the edge of the steel strip is short, the seal / felt body is less damaged and worn, and the trouble caused by the fiber in the next step is relatively small. Table 1 explains this and shows a comparison between synthetic fibers and pure hair.
また、従来の化繊のフェルトは第２図にその部分断面図
を示すように、メタ系アラミド繊維を芯としてメタ系ア
ラミド繊維とフェノール繊維との混合繊維を貼合わせた
ものを用いていた。Further, as a conventional synthetic fiber felt, as shown in the partial cross-sectional view of FIG. 2, the one in which the mixed fiber of the meta-aramid fiber and the phenol fiber was laminated with the meta-aramid fiber as the core was used.
〔考案が解決しようとする課題〕 しかしながら 純毛フェルトは炭化開始温度が200℃と低く、焼鈍
炉出側の鋼帯温度がこの温度以上になるとフェルトが焼
け、鋼帯すり疵発生の原因になることはもちろん、H2ガ
ス等を雰囲気ガスとして使用している場合には、炭化物
が火種となり、出火する場合がある。従って、通常操業
においては、炉出側の鋼帯温度を厳しく管理する必要が
あった。また、自然毛のため、異物、脂肪の小塊などが
混入しており、鋼帯すり疵発生の原因となっていた。 [Problems to be solved by the invention] However, the pure bristle felt has a low carbonization start temperature of 200 ° C, and if the temperature of the steel strip on the outlet side of the annealing furnace is higher than this temperature, the felt will be burned, causing the occurrence of steel strip flaws. Of course, when H 2 gas or the like is used as the atmosphere gas, the carbide may become a fire and a fire may occur. Therefore, in normal operation, it was necessary to strictly control the temperature of the steel strip on the exit side of the furnace. In addition, since it is natural hair, foreign matter, small lumps of fat, etc. are mixed in, which has been a cause of steel strip abrasion.
一方、上記の点において優れた化繊を使用した場
合、フェルト単価が大幅に上昇する。また、強度が大き
く、かつ、繊維長が長いため、フェルトの損傷が大き
く、さらに、次工程での繊維クズ起因トラブルも多い。On the other hand, when the synthetic fiber excellent in the above points is used, the felt unit price is significantly increased. Further, since the strength is large and the fiber length is long, the felt is damaged greatly, and moreover, there are many troubles due to fiber scraps in the next step.
本考案はこのような課題を解決した鋼帯用雰囲気焼鈍炉
ガスシール用フェルトを提供することを目的とするもの
である。An object of the present invention is to provide a felt for an atmosphere annealing furnace gas seal for steel strips which solves the above problems.
本考案は上記課題解決の技術的手段として次の構成から
成る。The present invention has the following structure as a technical means for solving the above problems.
すなわち、 ａ）外層をシリコン・アクリル共重合体で50〜200g/m2
樹脂加工したメタ系アラミド繊維とフェノール繊維の混
紡層とする。That is, a) The outer layer is made of silicone-acrylic copolymer of 50 to 200 g / m 2
It is a mixed spinning layer of resin-processed meta-aramid fiber and phenol fiber.
ｂ）内層をポリエステル繊維層とする。b) The inner layer is a polyester fiber layer.
本考案のガスシール用フェルトは上記のように構成した
ので、従来の純毛あるいは化繊に比べ、 イ）化繊であるため耐熱性に優れる。Since the gas seal felt of the present invention is configured as described above, it is excellent in heat resistance because it is a) synthetic fiber as compared with conventional pure hair or synthetic fiber.
ロ）化繊であるため、すり疵の原因となる異物が皆無で
ある。B) Since it is a synthetic fiber, there are no foreign substances that cause scratches.
ハ）表層に樹脂加工を施したフェルトを用いることによ
り、繊維は樹脂の結合点で切断され、その長さは純毛
並、あるいはそれ以下とすることができる。このため、
従来の化繊に比べ、フェルトの損耗は軽微であり、か
つ、次工程での繊維くずに起因するトラブルは、大幅に
低減される。C) By using a felt having a resin processed surface layer, the fiber is cut at the bonding point of the resin, and its length can be equal to or less than that of pure wool. For this reason,
Compared with conventional synthetic fibers, the felt wear is slight, and the troubles caused by fiber waste in the next step are greatly reduced.
ニ）内層にポリエステル繊維層を用いたサンドイッチ構
造にすることにより、外層の高価な耐熱繊維の使用量を
60％低減することができ、単価を大幅に引き下げること
ができる。D) By using a sandwich structure that uses a polyester fiber layer as the inner layer, the amount of expensive heat-resistant fiber used in the outer layer can be reduced.
It can be reduced by 60%, and the unit price can be significantly reduced.
本考案の限定理由について以下述べる。The reasons for limitation of the present invention will be described below.
樹脂加工処理の下限を50g/m2としたのは、これより少な
い場合、樹脂加工の効果である「樹脂結合点での繊維の
切断長さ」が余り短くならず、上述した繊維起因のトラ
ブルが減少しないためである。The lower limit of the resin processing treatment is set to 50 g / m 2, and if it is less than this, the "cutting length of the fiber at the resin bonding point", which is the effect of the resin processing, does not become too short, and the above-mentioned problems caused by the fiber occur. Is not reduced.
上限を200g/m2としたのは、これよりも多量に樹脂加工
処理した場合、表面が非常に硬くなり、フェルト継ぎ作
業が非常に困難となるからである。The upper limit is set to 200 g / m 2 because if the resin is treated in a larger amount than this, the surface becomes very hard and the felt joining work becomes very difficult.
第１図は本考案のフェルトの模式断面図である。外層10
はメタ係アラミド繊維による織布２を芯とし、その両面
にメタ系アラミド繊維とフェノール繊維との混紡層１を
形成した。内層20はポリエステル繊維による織布４を芯
としたポリエステル繊維層３とした。また、外層の表層
にはシリコン・アクリル共重合体樹脂５で樹脂加工して
ある。FIG. 1 is a schematic sectional view of the felt of the present invention. Outer layer 10
The woven fabric 2 made of meta-aramid fiber was used as the core, and the mixed spinning layer 1 of the meta-aramid fiber and the phenol fiber was formed on both surfaces thereof. The inner layer 20 was a polyester fiber layer 3 having a woven fabric 4 made of polyester fiber as a core. The surface layer of the outer layer is processed with a silicone / acrylic copolymer resin 5.
この本考案の実施例を光輝焼鈍炉の炉口シールに使用し
た。その結果、以下の利点が明確となった。This embodiment of the present invention was used for sealing the furnace opening of a bright annealing furnace. As a result, the following advantages became clear.
（ａ）純毛フェルトに比べ、 フェルト起因のすり疵発生率が５％から０％へ低減と
なった。(A) The rate of occurrence of scratches due to felt was reduced from 5% to 0% as compared with pure wool felt.
フェルト炭化に起因する出火発生件数が４件／年から
０件／年へ激減した。The number of fires caused by carbonization of felt decreased dramatically from 4 cases / year to 0 cases / year.
（ｂ）従来の化繊フェルトに比べ、 鋼帯エッジへ引掛かる繊維長は、純毛並みとなった。(B) Compared to the conventional synthetic fiber felt, the fiber length caught on the edge of the steel strip was almost the same as that of pure wool.
それに伴い、繊維くず起因の次工程でのトラブルも激
減し、純毛並みとなった。Along with this, the troubles in the next process due to fiber waste were drastically reduced, and the hair was as pure as possible.
フェルト寿命が約２倍となった。Felt life has been doubled.
本考案によれば、鋼帯用雰囲気焼鈍炉ガスシール用フェ
ルトとして、外層をシリコン・アクリル共重合体で樹脂
加工したメタ系アラミド繊維とフェノール繊維の混紡層
とし、内層をポリエステル繊維層とすることにより、フ
ェルト内の異物の解消、耐熱性の向上、繊維引張時の破
断長さの短小化及び高価な耐熱化繊の使用量の低減を達
成することができる。According to the present invention, as the felt for the atmosphere annealing furnace gas seal for steel strip, the outer layer is a blended layer of meta-aramid fiber and phenol fiber resin-processed with silicon-acrylic copolymer, and the inner layer is a polyester fiber layer. As a result, it is possible to eliminate foreign matter in the felt, improve heat resistance, shorten the breaking length when the fiber is pulled, and reduce the amount of expensive heat-resistant synthetic fiber used.
従って、フェルトに起因するすり疵の解消、フェルトの
炭化に起因する出火の解消、鋼帯エッジに引掛かる繊維
に起因するフェルト寿命の延長、及び次工程での繊維く
ずに起因するトラブルの減少、フェルト単価の大幅削
減、などの優れた効果を奏する。Therefore, elimination of scratches caused by felt, elimination of fire caused by carbonization of felt, extension of felt life due to fibers caught on the steel strip edge, and reduction of troubles caused by fiber scraps in the next step, It has excellent effects such as a significant reduction in felt unit price.
第１図は本考案による化繊フェルトの断面図、第２図は
従来の化繊フェルトの断面図である。 １…メタ系アラミド繊維とフェノール繊維との混紡層 ２…メタ系アラミド繊維による織布 ３…ポリエステル繊維層 ４…ポリエステル繊維による織布 ５…シリコン・アクリル共重合体樹脂 10…外層 20…内層FIG. 1 is a sectional view of a synthetic fiber felt according to the present invention, and FIG. 2 is a sectional view of a conventional synthetic fiber felt. 1 ... Blended layer of meta-aramid fiber and phenolic fiber 2 ... Woven fabric of meta-aramid fiber 3 ... Polyester fiber layer 4 ... Woven fabric of polyester fiber 5 ... Silicone / acrylic copolymer resin 10 ... Outer layer 20 ... Inner layer
───────────────────────────────────────────────────── フロントページの続き (72)考案者 片桐 一範 大阪府大阪市旭区新森１―７―19―209 (72)考案者 中川 幸規 大阪府大阪市福島区福島５―６―31 (56)参考文献 特開 昭62−287020（ＪＰ，Ａ) 特開 昭62−214134（ＪＰ，Ａ) 特開 昭48−57810（ＪＰ，Ａ) ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kazunori Katagiri 1-7-19-209 Shinmori, Asahi-ku, Osaka-shi, Osaka (72) Inventor Yukinori Nakagawa 5-6-31 Fukushima, Fukushima-ku, Osaka-shi, Osaka (56) References JP-A-62-287020 (JP, A) JP-A-62-214134 (JP, A) JP-A-48-57810 (JP, A)
Claims (1)
において、外層はシリコン・アクリル共重合体で50〜20
0g/m2の樹脂加工したメタ系アラミド繊維とフェノール
繊維の混紡層とし、内層はポリエステル繊維層とした鋼
帯用雰囲気焼鈍炉ガスシール用フェルト。1. In a felt for an atmosphere annealing furnace gas seal for a steel strip, the outer layer is a silicon-acrylic copolymer in an amount of 50 to 20.
Felt for gas seal in atmosphere annealing furnace for steel strips, which is a blended layer of 0 g / m 2 resin-processed meta-aramid fiber and phenol fiber, and the inner layer is polyester fiber layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12740988U JPH0726355Y2 (en) | 1988-09-30 | 1988-09-30 | Felt for gas seal of atmosphere annealing furnace for steel strip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12740988U JPH0726355Y2 (en) | 1988-09-30 | 1988-09-30 | Felt for gas seal of atmosphere annealing furnace for steel strip |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0251252U JPH0251252U (en) | 1990-04-10 |
| JPH0726355Y2 true JPH0726355Y2 (en) | 1995-06-14 |
Family
ID=31379819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12740988U Expired - Fee Related JPH0726355Y2 (en) | 1988-09-30 | 1988-09-30 | Felt for gas seal of atmosphere annealing furnace for steel strip |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0726355Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2794541B2 (en) * | 1994-06-21 | 1998-09-10 | 日新製鋼株式会社 | Sealing device for heat treatment furnace using atmosphere gas containing hydrogen gas |
-
1988
- 1988-09-30 JP JP12740988U patent/JPH0726355Y2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0251252U (en) | 1990-04-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |