JP6970133B2 - ハニカム成形体の受台、ハニカム成形体の製造方法及びハニカム焼成体の製造方法 - Google Patents
ハニカム成形体の受台、ハニカム成形体の製造方法及びハニカム焼成体の製造方法 Download PDFInfo
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- JP6970133B2 JP6970133B2 JP2019044143A JP2019044143A JP6970133B2 JP 6970133 B2 JP6970133 B2 JP 6970133B2 JP 2019044143 A JP2019044143 A JP 2019044143A JP 2019044143 A JP2019044143 A JP 2019044143A JP 6970133 B2 JP6970133 B2 JP 6970133B2
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- molded body
- honeycomb molded
- pedestal
- honeycomb
- main body
- Prior art date
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- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
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Description
しかしながら、多孔質ポリウレタン樹脂硬化物は、発泡体に比べてクッション性が低いため、より厳しい加工精度が要求されるが、多孔質ポリウレタン樹脂硬化物の加工精度を高めることには限界がある。特に、ハニカム成形体の側面に対応する当接支持面に仕上げることに要求される加工負担が無視できない。
また、本発明は、ハニカム成形体の側面を変形させることなく保持し、生産効率を高めつつ製造コストを低減することが可能なハニカム成形体の製造方法及びハニカム焼成体の製造方法を提供することを目的とする。
一方向に延びる溝部を有する本体部と、
前記本体部の前記溝部の表面と当接する可撓性シート基材、及び前記可撓性シート基材に接着され且つ前記ハニカム成形体の前記側面と当接する発泡体層を有する支持部と、
前記支持部を前記本体部に固定するための固定部材と
を備え、
前記支持部が、前記本体部に対して非接着状態で設けられている、ハニカム成形体の受台である。
さらに、本発明は、前記ハニカム成形体の製造方法で得られたハニカム成形体を焼成する、ハニカム焼成体の製造方法である。
また、本発明によれば、ハニカム成形体の側面を変形させることなく保持し、生産効率を高めつつ製造コストを低減することが可能なハニカム成形体の製造方法及びハニカム焼成体の製造方法を提供することができる。
図1は、本発明の一実施形態に係るハニカム成形体の受台の斜視図である。
図1に示されるように、本発明の一実施形態に係るハニカム成形体の受台100は、本体部10と、本体部10上に設けられた支持部20と、支持部20を本体部10に固定するための固定部材30とを備える。
硬質樹脂としては、当該技術分野において公知のものを用いることができるが、多孔質ポリウレタン樹脂を用いることが好ましい。多孔質ポリウレタン樹脂の例としては、ケミカルウッドが挙げられる。ケミカルウッドは、市販されており、RAMPF社製のラクツール(RAKU−TOOL(登録商標))などを用いることができる。
なお、本明細書において「ショアD硬度」とは、ISO 868に準拠して測定される値を意味する。
ここで、ハニカム成形体の受台100に用いられる支持部20(ハニカム成形体の受台100に装着される前の状態)の斜視図を図2に示す。
図2に示されるように、支持部20は、可撓性シート基材21上に発泡体層22が設けられた単純な積層シート構造を有する。
支持部20は、本体部10に対して非接着状態で設けられるため、ハニカム成形体の側面と当接する発泡体層22が使用の経過に伴って劣化した際に、単純な積層シート構造を有する支持部20のみを交換することで再利用することが可能になる。
ここで、発泡体層22の当接面の25%硬さは、JIS K6401:2011に準拠して測定される25%圧縮時の硬さを意味する。具体的には、発泡体層22の当初の厚さ(元厚)の75%まで1回圧縮し、次に、発泡体層22が元厚に復帰した後、元厚の25%まで発泡体層22を押し込み20秒間維持した時の荷重値(ニュートン)である。
ここで、固定部材30周辺の部分拡大側面図(本体部10の溝部11が延びる方向に垂直な端面の部分拡大断面図)を図3に示す。
固定部材30は、例えば、図1及び3に示されるように、本体部10の上面12及び支持部20の可撓性シート基材21と接触するL型アングル31を含むことができる。
L型アングル31は、支持部20が本体部10の溝部11に沿って動くことを防止するために設けられる。L型アングル31は、本体部10の溝部11との間に可撓性シート基材21を挟み、ボルト32aなどで締め付けることによって支持部20を固定することができる。
開閉プレート33は、支持部20が、本体部10の溝部11が延びる方向と平行な方向に動くことを防止するために設けられる。開閉プレート33は、図3(a)に示されるように、端面13上をスライドさせて閉じ、ボルト32bなどで固定することにより、2つの端面13の間に支持部20を固定することができる。また、開閉プレート33は、図3(b)に示されるように、ボルト32bを緩め、端面13上をスライドさせて開けることにより、支持部20を端面13側から取り除くことができる。
本発明の一実施形態に係るハニカム成形体の製造方法は、押出成形によって得られたハニカム成形体のセルが延びる方向に平行な側面を、上記のハニカム成形体の受台100で支持して搬送する。
図4は、押出成形されたハニカム成形体が受台100に受け渡されて運搬される様子を説明するための模式図である。
図4に示されるように、押出成形機40の口金41から押出されたハニカム成形体50は、押出成形機40の押出方向前方に位置する搬送路42上に配置された受台100に受け渡される。このとき、受台100上にハニカム成形体50がスムーズに受け渡されるようにするために、ハニカム成形体50の押出速度と搬送路42の速度とが略同一であることが好ましい。搬送路42は、特に限定されないが、ベルト43及びローラー44を有するコンベア式であることが好ましい。
焼成温度は、ハニカム成形体50の製造に用いた原料に応じて適宜設定される。例えば、コージェライト化原料を用いてハニカム成形体50を製造した場合、焼成温度は、好ましくは1380〜1450℃、より好ましくは1400〜1440℃である。また、焼成温度を保つ焼成時間は、特に限定されないが、一般的に3〜10時間である。
押出成形機40によって製造されるハニカム成形体50は、押出方向に延びるセルを区画形成する隔壁を有する。ハニカム成形体50のセルが延びる方向に垂直な断面におけるセルの形状は、特に限定されないが、円形、楕円形、三角形〜八角形などの多角形などの各種形状とすることができる。また、ハニカム成形体50のセルが延びる方向に垂直な断面の外形は、特に限定されないが、円状、オーバル形状、レーストラック形状などの各種形状とすることができる。
ハニカム成形体50のセルが延びる方向に垂直な断面における隔壁の厚みは、特に限定されないが、好ましくは0.05〜0.30mm、より好ましくは0.05〜0.10mm、さらに好ましくは0.05〜0.08mmである。なお、隔壁厚は、例えば、画像解析装置(ニコン株式会社製、商品名「NEXIV、VMR−1515」)によって測定することができる。
上記のようなセル数、隔壁及び幅を有するハニカム成形体50は、受台100に接触する際に、ハニカム成形体50の外周の隔壁よりも内側の隔壁において局所的な変形が生じ易い。しかしながら、本発明の一実施形態に係る受台100を用いることで、局所的な変形を抑制することができるため、歩留まりの低下を抑制することができる。
上記のような形状を有するハニカム成形体50は、押出成形機40の先端に設けられた口金41の構造を適宜設定することによって得ることができる。
また、上記のようにして製造されるハニカム焼成体は、自動車排ガス浄化用触媒担体、ディーゼル微粒子除去フィルタ、ガソリン微粒子除去フィルタ、燃焼装置用蓄熱体などの各種用途で用いることができる。
11 溝部
12 上面
13 端面
20 支持部
21 可撓性シート基材
22 発泡体層
30 固定部材
31 L型アングル
32a、32b ボルト
33 開閉プレート
40 押出成形機
41 口金
42 搬送路
43 ベルト
44 ローラー
50 ハニカム成形体
100 受台
Claims (10)
- ハニカム成形体のセルが延びる方向に平行な側面を支持するための受台であって、
一方向に延びる溝部を有する本体部と、
前記本体部の前記溝部の表面と当接する可撓性シート基材、及び前記可撓性シート基材に接着され且つ前記ハニカム成形体の前記側面と当接する発泡体層を有する支持部と、
前記支持部を前記本体部に固定するための固定部材と
を備え、
前記支持部が、前記本体部に対して非接着状態で設けられている、ハニカム成形体の受台。 - 前記固定部材は、前記本体部の上面及び前記支持部の前記可撓性シート基材と接触するL型アングルを含む、請求項1に記載のハニカム成形体の受台。
- 前記固定部材は、前記本体部の前記溝部が延びる方向に垂直な2つの端面に設けられた開閉プレートをさらに含む、請求項1又は2に記載のハニカム成形体の受台。
- 前記発泡体層は、樹脂発泡体層又はゴム発泡体層である、請求項1〜3のいずれか一項に記載のハニカム成形体の受台。
- 前記発泡体層は、連続気泡を有する、請求項1〜4のいずれか一項に記載のハニカム成形体の受台。
- 前記可撓性シート基材は、可撓性樹脂から形成されている、請求項1〜5のいずれか一項に記載のハニカム成形体の受台。
- 前記本体部は、硬質樹脂から形成されている、請求項1〜5のいずれか一項に記載のハニカム成形体の受台。
- 押出成形によって得られたハニカム成形体のセルが延びる方向に平行な側面を、請求項1〜7のいずれか一項に記載のハニカム成形体の受台で支持して搬送する、ハニカム成形体の製造方法。
- 前記受台で支持されたハニカム成形体を切断する、請求項8に記載のハニカム成形体の製造方法。
- 請求項8又は9に記載のハニカム成形体の製造方法で得られたハニカム成形体を焼成する、ハニカム焼成体の製造方法。
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| DE102020000639.6A DE102020000639B4 (de) | 2019-03-11 | 2020-01-30 | Aufnahmetisch für einen wabenformkörper, verfahren zur herstellung eines wabenformkörpers und verfahren zur herstellung eines gebrannten wabenkörpers |
| US16/778,083 US11904498B2 (en) | 2019-03-11 | 2020-01-31 | Receiving table for honeycomb formed body, method for producing honeycomb formed body, and method for producing honeycomb fired body |
| CN202010083368.4A CN111673880B (zh) | 2019-03-11 | 2020-02-09 | 蜂窝成型体的承受台、蜂窝成型体的制造方法以及蜂窝烧成体的制造方法 |
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| JP2002103325A (ja) * | 2000-09-27 | 2002-04-09 | Hitachi Metals Ltd | ハニカム構造押出成形体の搬送用受台 |
| JP4314806B2 (ja) | 2002-10-22 | 2009-08-19 | 株式会社デンソー | セラミック成形体の搬送装置 |
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