JP4557547B2 - ハニカム構造の半完成品、ならびにハニカム構造に接着剤およびろう材を塗布するための方法 - Google Patents
ハニカム構造の半完成品、ならびにハニカム構造に接着剤およびろう材を塗布するための方法 Download PDFInfo
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- 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
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- 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
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- 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
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- 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
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Description
− 以下の式に従った最小限の接着細片域幅の決定。
D=ろう材直径
P=ピッチ
W=波高
− 波形によって形成される少なくともいくつかの波形のピーク上における接着細片域幅内の少なくとも部分的なテクスチャ付箔への接着剤の塗布。
好適な平均ろう材粒直径の選択は本質的には箔厚によって決定される。というのも、箔が合金にされないことが確実となるからである。さらに、用いられる箔厚がまたハニカム構造の実現可能なダクト密度と相互に関連し、したがってテクスチャ付箔の波高とも相互に関連することが当業者には容易に明らかである。このため、ここで提案される平均ろう材粒直径は、サイズが波高の15%未満、特に10%未満、好ましくは8%未満である。波高は、ほぼ1000cpsiのハニカム構造においてあり得るように、たとえば0.73mmである場合、これに応じて110μm未満の平均ろう材粒直径が選択されなければならない。
この付加的な幅は、後で使用する間に特に高い熱応力および/または動的応力が発生する場合、必要である可能性がある。したがって、接着細片域幅は、たとえば(より小さなろう材粒直径しか有さない、ある状況下における同じ)付加的なろう材粒を配置することができるような分だけ拡大される。したがって、この方法により、ある種類の安全係数を有する接合技術を用いて接続部を形成する可能性がもたらされ、正確に規定された量の付加的なろう付け材料が接触点近くに固定される。付加的なろう付け材料のこのような配置はまた、たとえばハニカム構造が比較的厚肉の箔(たとえば60μmを超える箔厚)を含む場合にも有利である。厚肉の箔は、比較的薄い箔に比べて比較的剛性の構造であるので、巻かれると、付加的に固定されるろう付け材料が架け渡される隙間が接触領域において生じ得る。
この補正値は、特に、形成される箔構造に従って選択されるべきである。最小限の接着細片域幅を決定するための上述の式は、本質的に正弦波形に基づいており、補正値により、この計算をたとえば方形波形に対し適合させることが可能となる。特に極めて急勾配の端縁を有するこのような波形においては、互いから大幅にずれるポケット形状が生成される。特に、これらの構成においては、ろう材粒を接触領域のより近くに固定して位置決めしなくてもピッチ/波高の比率に著しい変化が起こり、したがって、接着細片域幅は本質的には変化しない。この効果は補正値によって補償され得る。
− 接着細片域幅の外側に集まった接着剤の、ろう材の塗布前に不活性化される接着特性、および/または、
− 接着細片域幅の内側に集まった接着剤の、ろう材の塗布前に活性化される接着特性、を有するような接着剤を用いることが特に有利である。
れ得るからである。
な塗布が特に重要である。これは好ましくは、1mm未満、特に0.75mm未満の波高、または2mm未満、特に1.5mm未満のピッチに関する。提案された波高および提案されたピッチでは、流れ抵抗に対して好適な断面を有するダクトが形成される。加えて、箔が通常、触媒活性材料を染み込ませたウォッシュコートも備えることを考慮に入れる必要がある。ウォッシュコートは、触媒活性材料と排気ガスとの間の集中的な接触が確保されるように、ダクトにおける特にざらざらの大きな面を利用可能にする機能を有する。過度に狭いダクト形状が選択される場合、ダクトが塞がれることとなる可能性があり、このようなハニカム体の上流における排気ガスのラム圧に悪影響を及ぼすおそれがある。
範囲は不動態層14によって定められる。不動態層は、テクスチャ付箔2に接着剤を塗布する前または後に付けることができる。
Claims (16)
- 接着剤、および、粒状のろう付け材料であるろう付け材粒を、ハニカム構造(1)に塗布するための方法であって、このハニカム構造(1)は、ピッチ(P)および波高(W)を有する少なくとも1つの少なくとも部分的に波形を有する箔(2)と、他の箔(6)とを含み、ポケット(25)が前記箔(2)と前記他の箔(6)との間の接触領域(11)に形成されており、
サイズが波高(W)の15%未満であるろう付け材粒(3)の平均ろう付け材粒直径(D)を選択するステップと、
以下の式に従った最小限の接着細片域幅(B)を決定するステップと、
前記接着剤の塗布の後に、前記少なくとも部分的に波形を有する箔(2)と、前記他の箔(6)とを重ねて前記軸(9)の周りに巻くことにより、ハニカム構造(1)を形成するステップと、
前記ハニカム構造(1)にろう付け材粒(3)を塗布するステップとを含み、
前記ピッチ(P)が0.8mm〜6mm、前記接着細片域幅(B)が1.75mm未満であり、
これにより、前記ハニカム構造(1)の横断面において、接着剤が塗布されている領域(8)における各ポケット(25)に、1つまたは2つのろう付け材粒を供給する、方法。 - 前記接着細片域幅(B)は、0.2・D<Z<Dの範囲である付加的な幅(Z)だけ拡大される、請求項1に記載の方法。
- 前記接着細片域幅(B)は補正値(K)よって決定され、この補正値(K)は0mm<K<1mmの範囲にあり、前記接着細片域幅(B)から引かれるかまたはこれに加えられる、請求項1または2に記載の方法。
- 最初に前記少なくとも部分的に波形を有する箔(2)に接着剤(4)が供給され、次にハニカム構造(1)が形成され、ろう付け材粒が前記ハニカム構造(1)の端側(5)に塗布される、請求項1から3のいずれかに記載の方法。
- 前記ハニカム構造(1)は少なくとも1つの付加的な滑らかな箔(6)によって形成され、前記少なくとも部分的に波形を有する箔(2)および前記少なくとも1つの滑らかな箔(6)は、流体が中を流れ得るダクト(7)が形成されるように積み重ねられ、および/または曲げられる、請求項4に記載の方法。
- 前記ハニカム構造(1)への接着剤の塗布は、前記ハニカム構造(1)の軸(9)方向への少なくとも領域(8)にわたってのみ実行される、請求項1から5のいずれかに記載の方法。
- 前記接着細片域幅(B)の外側に集まった接着剤(4)は、ろう付け材粒を塗布する前に洗浄ステップにおいて除去される、請求項1から6のいずれかに記載の方法。
- 40μm〜120μmのろう付け材粒(3)の平均ろう付け材粒直径(D)が用いられる、請求項1から7のいずれかに記載の方法。
- ろう材の塗布後、またはその後のハニカム構造(1)の熱処理後、前記接着細片域幅(B)に比べて許容差が最大で10%のろう材細片幅(L)が生成される、請求項1から8のいずれかに記載の方法。
- 前記ハニカム構造(1)は、ろう付け材粒の塗布前に、少なくとも部分的にハウジング(10)に導入される、請求項1から9のいずれかに記載の方法。
- 前記ハニカム構造(1)はまた好ましくは滑らかな箔(6)を含み、前記箔(2,6)は、180μm未満の箔厚(12)を有することを特徴とする、請求項11に記載のハニカム構造(1)の半完成品。
- 前記波高(W)は4mm〜0.5mmであることを特徴とする、請求項11または12に記載のハニカム構造(1)の半完成品。
- 600cpsiを越えるダクト密度を有することを特徴とする、請求項11から13のいずれかに記載のハニカム構造(1)の半完成品。
- 少なくとも1つの箔(2,6)は、領域(8)を規定しかつ前記ハニカム構造(1)の軸(9)の方向への前記接着細片域幅(B)の範囲を定める二次的構造(13)を有することを特徴とする、請求項11から14のいずれかに記載のハニカム構造(1)の半完成品。
- 少なくとも1つの箔(2,6)は、領域(8)を規定しかつ前記ハニカム構造(1)の軸(9)の方向への前記接着細片域幅(B)の範囲を定める不動態層を有することを特徴とする、請求項11から15のいずれかに記載のハニカム構造(1)の半完成品。
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DE10200069A DE10200069A1 (de) | 2002-01-03 | 2002-01-03 | Wabenstruktur und Verfahren zu deren Beleimung und Belotung |
PCT/EP2002/014635 WO2003055631A1 (de) | 2002-01-03 | 2002-12-20 | Wabenstruktur und verfahren zu deren beleimung und belotung |
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EP (1) | EP1463599B1 (ja) |
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DE10200069A1 (de) * | 2002-01-03 | 2003-07-24 | Emitec Emissionstechnologie | Wabenstruktur und Verfahren zu deren Beleimung und Belotung |
DE10338360A1 (de) * | 2003-08-21 | 2005-03-31 | Emitec Gesellschaft Für Emissionstechnologie Mbh | Verfahren und Vorrichtung zur Herstellung eines Wabenkörpers |
DE10343463A1 (de) * | 2003-09-19 | 2005-04-14 | Emitec Gesellschaft Für Emissionstechnologie Mbh | Verfahren zur Herstellung von aluminiumhaltigen Wabenkörpern mit Strahlungsheizern |
EP1557545A3 (en) * | 2004-01-21 | 2006-03-29 | Ecocat OY | Metallic catalyst for treating exhaust gases and method and apparatus for manufacturing the same |
DE102004021037A1 (de) * | 2004-04-29 | 2005-11-24 | Emitec Gesellschaft Für Emissionstechnologie Mbh | Verfahren zur Herstellung einer hochtemperaturfesten Struktur |
DE102005028044A1 (de) * | 2005-06-17 | 2006-12-28 | Emitec Gesellschaft Für Emissionstechnologie Mbh | Herstellung von, insbesondere großen, Wabenkörpern für die mobile Abgasnachbehandlung |
JP2008238223A (ja) * | 2007-03-27 | 2008-10-09 | Denso Corp | ろう接方法 |
DE102008003658A1 (de) * | 2008-01-09 | 2009-07-16 | Emitec Gesellschaft Für Emissionstechnologie Mbh | Wabenkörper mit strukturiertem Blechmaterial |
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DE102010052650A1 (de) * | 2010-11-26 | 2012-05-31 | Emitec Gesellschaft Für Emissionstechnologie Mbh | Verbindung zweier Abgasbehandlungsvorrichtungen zueinander |
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AU2002361184A1 (en) | 2003-07-15 |
EP1463599B1 (de) | 2007-01-24 |
DE50209391D1 (de) | 2007-03-15 |
BRPI0215435B1 (pt) | 2016-04-19 |
RU2291767C2 (ru) | 2007-01-20 |
BR0215435A (pt) | 2004-12-14 |
KR20040068611A (ko) | 2004-07-31 |
US7108168B2 (en) | 2006-09-19 |
RU2004123784A (ru) | 2006-01-20 |
EP1463599A1 (de) | 2004-10-06 |
CN1612791A (zh) | 2005-05-04 |
WO2003055631A1 (de) | 2003-07-10 |
BRPI0215435A2 (ja) | 2004-12-14 |
CN1296163C (zh) | 2007-01-24 |
BRPI0215435B8 (pt) | 2023-01-17 |
DE10200069A1 (de) | 2003-07-24 |
US20070012747A1 (en) | 2007-01-18 |
ES2280614T3 (es) | 2007-09-16 |
US20040217149A1 (en) | 2004-11-04 |
JP2005512807A (ja) | 2005-05-12 |
KR100944289B1 (ko) | 2010-02-24 |
US7562805B2 (en) | 2009-07-21 |
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