JP2015222076A - 実装マット及びこの実装マットを備えた汚染防止装置 - Google Patents
実装マット及びこの実装マットを備えた汚染防止装置 Download PDFInfo
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- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
- B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
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- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
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- D04H1/4209—Inorganic fibres
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- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
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- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4209—Inorganic fibres
- D04H1/4218—Glass fibres
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- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
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- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4382—Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
- D04H1/43825—Composite fibres
- D04H1/43828—Composite fibres sheath-core
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- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
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- D04H1/4382—Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
- D04H1/43835—Mixed fibres, e.g. at least two chemically different fibres or fibre blends
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- D—TEXTILES; PAPER
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- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4382—Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
- D04H1/43838—Ultrafine fibres, e.g. microfibres
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- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
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- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
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- D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
- D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
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- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/14—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having thermal insulation
- F01N13/141—Double-walled exhaust pipes or housings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
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- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
- F01N3/28—Construction of catalytic reactors
- F01N3/2839—Arrangements for mounting catalyst support in housing, e.g. with means for compensating thermal expansion or vibration
- F01N3/2853—Arrangements for mounting catalyst support in housing, e.g. with means for compensating thermal expansion or vibration using mats or gaskets between catalyst body and housing
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Abstract
【解決手段】ケイ酸アルミニウムマグネシウムガラス繊維と、非結晶耐火セラミック繊維、生体溶解性セラミック繊維及び/又は熱処理シリカ繊維とを含む不織布マット30。不織布マット30の実施形態は、驚くべきことに、実条件備品試験の25℃〜700℃/400℃の3回の熱サイクル後、任意の個々の不織布マットの繊維タイプからなる類似の不織布マットの弾力性値よりも少なくとも1.1倍大きい弾力性値を有する。不織布マット30は、例えば汚染防止装置10内で、及び他の断熱用途に有用である。
【選択図】図1
Description
1.マットの総重量に基づいて少なくとも60重量パーセントのケイ酸アルミニウムマグネシウムガラス繊維と、少なくとも10重量パーセントの非結晶耐火セラミック繊維、生体溶解性セラミック繊維、熱処理シリカ繊維、及びそれらの混合物からなる群から選択される繊維と、から構成されるブレンドから構成される不織布マットであって、ケイ酸アルミニウムマグネシウムガラス繊維は、ケイ酸アルミニウムマグネシウムガラス繊維の総重量に基づいてAl2O3を10〜30重量パーセントの範囲内で、SiO2を52〜70重量パーセントの範囲内で、及びMgOを1〜12重量パーセントの範囲内で含み、不織布マットは、マットの総重量に基づいて、少なくとも80重量パーセントのケイ酸アルミニウムマグネシウムガラス繊維と、非結晶耐火セラミック繊維、生体溶解性セラミック繊維、熱処理シリカ繊維、及びそれらの混合物からなる群から選択される繊維と、から集合的に構成され、ブレンド中に存在するケイ酸アルミニウムマグネシウムガラス繊維と非結晶耐火セラミック繊維、生体溶解性セラミック繊維、熱処理シリカ繊維、及びそれらの混合物からなる群から選択される繊維とは、実条件備品試験の25℃〜700℃/400℃の3回の熱サイクル後、繊維のブレンド中に存在する任意の個々のケイ酸アルミニウムマグネシウムガラス繊維、非結晶耐火セラミック繊維、生体溶解性セラミック繊維、熱処理シリカ繊維からなる類似の不織布マットの弾力性値よりも少なくとも1.1倍大きい弾力性値を有する前記不織布マットを集合的に提供する、不織布マット。
−実条件備品試験(RCFT)
本試験は、触媒コンバータ等の汚染防止要素の実際の使用中に見出される実際の条件の代表的な条件下で、シート材料により付与される圧力の測定に使用された。
本開示の目的により、本試験は本明細書に記載した非膨張不織布マットの収縮を評価するために特定の高温度で用いられた。本試験では、不織布マットを700℃又は750℃に等温加熱した後、室温に冷却しながら、不織布マットの厚さを一定の圧力下で連続的に測定し、記録した。しかしながら、本試験は、真のコンバータ環境をシミュレートすることを意図するものではなかった。
本引張り試験は、不織布マットがマットの作製及び使用工程に関連し得ることから、不織布マットの所定の取り扱い特性を評価するために用いられた。不織布マットは、取り扱われ、モノリス周囲を覆われ、又は金属容器に詰められた際に引裂かれ又は破断されないことが望ましい。マットがコンバータアセンブリ内に実装された後、引張り強度はもはや問題にならない。
R−ガラス(ケイ酸アルミニウムマグネシウム)繊維(直径10マイクロメートル、長さ36mm、Saint Gobain Vetrotex,Chambery,Franceから獲得)を、ピンを装備したリッカリンロール(Laroche,Cours la ville,Franceから獲得)を有する二ゾーン開放機(two−zone opener)内で開放した。ストランドを供給速度3m/分及びリッカリンロール速度2,000rpmで第2ゾーン内に直接供給した。出力速度は6.0m/分であった。次いで、開放した繊維をウェブ形成機(商品名「RANDO WEBBER」で獲得)内に供給し、繊維を多孔質金属ロール上に吹き付けて連続ウェブを形成した。
75重量%のR−ガラス繊維(比較例に記載)と25重量%の熱処理シリカ繊維(直径9マイクロメートル、商品名「REFRASIL」でHITCO,Gardena,CAから獲得)とを含むマットを、比較例にて記載したように調製した。
75重量%のR−ガラス繊維(比較例に記載)と25重量%の生体溶解性セラミック繊維(細かく切断されていない、商品名「ISOFRAX」でUnifrax Corporation,Niagara Falls,NYから獲得)とを含むマットを、比較例にて記載したように調製した。
Claims (12)
- マットの総重量に基づいて少なくとも60重量パーセントのケイ酸アルミニウムマグネシウムガラス繊維と、少なくとも10重量パーセントの非結晶耐火セラミック繊維、生体溶解性セラミック繊維、熱処理シリカ繊維、及びそれらの混合物からなる群から選択される繊維と、から構成されるブレンドから構成される不織布マットであって、前記ケイ酸アルミニウムマグネシウムガラス繊維は、前記ケイ酸アルミニウムマグネシウムガラス繊維の総重量に基づいてAl2O3を10〜30重量パーセントの範囲内で、SiO2を52〜70重量パーセントの範囲内で、及びMgOを1〜12重量パーセントの範囲内で含み、前記不織布マットは、前記マットの総重量に基づいて、少なくとも80重量パーセントの前記ケイ酸アルミニウムマグネシウムガラス繊維と、非結晶耐火セラミック繊維、生体溶解性セラミック繊維、熱処理シリカ繊維、及びそれらの混合物からなる群から選択される前記繊維と、から集合的に構成され、前記ブレンド中に存在する前記ケイ酸アルミニウムマグネシウムガラス繊維と非結晶耐火セラミック繊維、生体溶解性セラミック繊維、熱処理シリカ繊維、及びそれらの混合物からなる群から選択される前記繊維とは、実条件備品試験の25℃〜700℃/400℃の3回の熱サイクル後、繊維のブレンド中に存在する任意の個々のケイ酸アルミニウムマグネシウムガラス繊維、非結晶耐火セラミック繊維、生体溶解性セラミック繊維、熱処理シリカ繊維からなる類似の不織布マットの弾力性値よりも少なくとも1.1倍大きい弾力性値を有する前記不織布マットを集合的に提供する、不織布マット。
- 500℃を超えて加熱する前の、出来上がった状態の前記不織布マットが、前記マットの総重量に基づいて5重量パーセント以下の有機材料を含む、請求項1に記載の不織布マット。
- 非膨張性である、請求項1又は2に記載の不織布マット。
- 請求項1〜3のいずれか一項に記載のマットと共にケーシング内に実装された汚染防止要素を含む汚染防止装置。
- 少なくとも60重量パーセントのケイ酸アルミニウムマグネシウムガラス繊維と少なくとも10重量パーセントの生体溶解性セラミック繊維とから構成されるブレンドから構成される不織布マットであって、前記ケイ酸アルミニウムマグネシウムガラス繊維が、前記ケイ酸アルミニウムマグネシウムガラス繊維の総重量に基づいてAl2O3を10〜30重量パーセントの範囲内で、SiO2を52〜70重量パーセントの範囲内で、及びMgOを1〜12重量パーセントの範囲内で含み、Al2O3、SiO2、及び前記不織布マットが、前記マットの総重量に基づいて少なくとも80重量パーセントの前記ケイ酸アルミニウムマグネシウムガラス繊維と前記生体溶解性セラミック繊維とから集合的に構成される、不織布マット。
- 500℃を超えて加熱する前の、出来上がった状態の前記不織布マットが、前記マットの総重量に基づいて5重量パーセント以下の有機材料を含む、請求項5に記載の不織布マット。
- 非膨張性である、請求項5又は6に記載の不織布マット。
- 請求項5〜7のいずれか一項に記載のマットと共にケーシング内に実装されている汚染防止要素を含む汚染防止装置。
- 少なくとも60重量パーセントのケイ酸アルミニウムマグネシウムガラス繊維と少なくとも10重量パーセントの熱処理シリカ繊維と、から構成されるブレンドから構成される不織布マットであって、前記ケイ酸アルミニウムマグネシウムガラス繊維が、前記ケイ酸アルミニウムマグネシウムガラス繊維の総重量に基づいてAl2O3を10〜30重量パーセントの範囲内で、SiO2を52〜70重量パーセントの範囲内で、及びMgOを1〜12重量パーセントの範囲内で含み、Al2O3、SiO2、及びMgOの重量百分率、及び前記不織布マットが、前記マットの総重量に基づいて少なくとも80重量パーセントの前記ケイ酸アルミニウムマグネシウムガラス繊維と前記熱処理シリカ繊維とから集合的に構成される、不織布マット。
- 500℃を超えて加熱する前の、出来上がった状態の前記不織布マットが、前記マットの総重量に基づいて5重量パーセント以下の有機材料を含む、請求項9に記載の不織布マット。
- 非膨張性である、請求項9又は10に記載の不織布マット。
- 請求項9〜11のいずれか一項に記載のマットと共にケーシング内に実装されている汚染防止要素を含む汚染防止装置。
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CN102859059B (zh) | 2010-04-13 | 2015-03-25 | 3M创新有限公司 | 厚无机纤维幅材以及制备和使用方法 |
USD665320S1 (en) * | 2011-03-14 | 2012-08-14 | Donna Medved | Tail pipe tip extenders |
JP5015336B1 (ja) * | 2011-03-31 | 2012-08-29 | ニチアス株式会社 | 無機繊維質ペーパー及びその製造方法 |
DE102012218136A1 (de) * | 2012-10-04 | 2014-04-10 | Friedrich Boysen Gmbh & Co. Kg | Abgasanlagenkomponente für Brennkraftmaschine und Verfahren zur Herstellung einer Abgasanlagenkomponente |
PL3262287T3 (pl) | 2015-02-24 | 2020-07-27 | Unifrax I Llc | Mata izolacyjna odporna na wysokie temperatury |
CN106835491A (zh) * | 2017-03-06 | 2017-06-13 | 常熟市东宇绝缘复合材料有限公司 | 环保型多层纤维复合材料毡 |
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US8916102B2 (en) | 2014-12-23 |
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