JP2012063349A - ハニカムフィルタの欠陥の検査方法、ハニカムフィルタの欠陥の検査装置、及び、ハニカムフィルタの製造方法 - Google Patents
ハニカムフィルタの欠陥の検査方法、ハニカムフィルタの欠陥の検査装置、及び、ハニカムフィルタの製造方法 Download PDFInfo
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
- G01N21/956—Inspecting patterns on the surface of objects
- G01N21/95692—Patterns showing hole parts, e.g. honeycomb filtering structures
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0084—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours provided with safety means
- B01D46/0086—Filter condition indicators
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
- B01D46/2403—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies characterised by the physical shape or structure of the filtering element
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/06—Investigating concentration of particle suspensions
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Abstract
【解決手段】 本発明の一態様は、粒子Pを生成する工程と、粒子Pを含むガスを、配管30を介して混合器40に移送する工程と、混合器40内で粒子Pを含むガスと他のガスとを混合して混合ガスを得る工程と、混合器40内の混合ガスをハニカムフィルタ100の一端面110bに供給する工程と、ハニカムフィルタ100の他端面110tから排出されるガス中の粒子Pの濃度分布を検出する工程と、を備えるハニカムフィルタの欠陥の検査方法である。
【選択図】 図2
Description
粒子を生成する工程と、
前記粒子を含むガスを、配管を介して混合器に移送する工程と、
前記混合器内で前記粒子を含むガスと他のガスとを混合して混合ガスを得る工程と、
前記混合器内の混合ガスをハニカムフィルタの一端面に供給する工程と、
前記ハニカムフィルタの他端面から排出されるガス中の粒子の濃度分布を検出する工程と、を備える。
粒子を生成する粒子生成器と、
前記粒子を含むガスを移送する配管と、
前記配管に接続され、前記粒子を含むガス及び他のガスを混合して混合ガスを提供する混合器と、
前記混合器内の混合ガスをハニカムフィルタの一端面に供給する供給路と、
前記ハニカムフィルタの他端面から排出されるガス中の粒子の濃度分布を検出する検出部と、を備える。
Claims (8)
- 粒子を生成する工程と、
前記粒子を含むガスを、配管を介して混合器に移送する工程と、
前記混合器内で前記粒子を含むガスと他のガスとを混合して混合ガスを得る工程と、
前記混合器内の混合ガスをハニカムフィルタの一端面に供給する工程と、
前記ハニカムフィルタの他端面から排出されるガス中の粒子の濃度分布を検出する工程と、を備えるハニカムフィルタの欠陥の検査方法。 - 水とドライアイスとの混合により前記粒子を生成する請求項1記載の方法。
- 2流体ノズルにより前記粒子を生成する請求項1記載の方法。
- 前記排出されるガスに対して光を照射し、前記排出されるガス中の粒子からの散乱光をカメラで検出することにより前記排出されるガス中の粒子の濃度分布を検出する請求項1〜3のいずれか一項に記載の方法。
- 前記カメラの視野内にスケールが配置されている請求項4記載の方法。
- 前記ハニカムフィルタの隔壁は多孔質である請求項1〜5のいずれか一項に記載の方法。
- 粒子を生成する粒子生成器と、
前記粒子を含むガスを移送する配管と、
前記配管に接続され、前記粒子を含むガス及び他のガスを混合して混合ガスを提供する混合器と、
前記混合器内の混合ガスをハニカムフィルタの一端面に供給する供給路と、
前記ハニカムフィルタの他端面から排出されるガス中の粒子の濃度分布を検出する検出部と、を備えるハニカムフィルタの欠陥の検査装置。 - 請求項1〜6のいずれか一項に記載の方法によりハニカムフィルタの欠陥を検査し、欠陥を有さないハニカムフィルタを選別する工程を含む、ハニカムフィルタの製造方法。
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Cited By (3)
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JP2013234952A (ja) * | 2012-05-10 | 2013-11-21 | Sumitomo Chemical Co Ltd | ハニカムフィルタの製造方法、及び、ハニカムフィルタの製造システム |
US20210262376A1 (en) * | 2018-07-20 | 2021-08-26 | Corning Incorporated | System and method for detecting defects in a honeycomb body |
DE102021001112A1 (de) | 2020-03-31 | 2021-09-30 | Ngk Insulators, Ltd. | Prüfverfahren für säulenförmigen Wabenfilter |
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JP2004286703A (ja) * | 2003-03-25 | 2004-10-14 | Ngk Insulators Ltd | ハニカム構造体の検査方法及び検査装置 |
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JPH1114532A (ja) * | 1997-06-25 | 1999-01-22 | Taikisha Ltd | フィルタリーク検査装置 |
JP2004151078A (ja) * | 2002-09-06 | 2004-05-27 | Hitachi Metals Ltd | ハニカム構造体の検査方法及び検査装置 |
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JP2006078234A (ja) * | 2004-09-07 | 2006-03-23 | Kyoto Univ | 砂礫測定装置及び測定方法 |
JPWO2009028709A1 (ja) * | 2007-08-30 | 2010-12-09 | 日本碍子株式会社 | 被検体の欠陥検査方法 |
JP2009115655A (ja) * | 2007-11-07 | 2009-05-28 | Ngk Insulators Ltd | フィルタの検査方法及びフィルタ検査装置 |
Cited By (6)
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JP2013234952A (ja) * | 2012-05-10 | 2013-11-21 | Sumitomo Chemical Co Ltd | ハニカムフィルタの製造方法、及び、ハニカムフィルタの製造システム |
US20210262376A1 (en) * | 2018-07-20 | 2021-08-26 | Corning Incorporated | System and method for detecting defects in a honeycomb body |
US11698017B2 (en) * | 2018-07-20 | 2023-07-11 | Corning Incorporated | System and method for detecting defects in a honeycomb body |
DE102021001112A1 (de) | 2020-03-31 | 2021-09-30 | Ngk Insulators, Ltd. | Prüfverfahren für säulenförmigen Wabenfilter |
JP2021162488A (ja) * | 2020-03-31 | 2021-10-11 | 日本碍子株式会社 | 柱状ハニカムフィルタの検査方法 |
US11662293B2 (en) | 2020-03-31 | 2023-05-30 | Ngk Insulators, Ltd. | Inspection method for pillar-shaped honeycomb filter |
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WO2012023442A1 (ja) | 2012-02-23 |
JP5939750B2 (ja) | 2016-06-22 |
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