JP2000193582A5 - Pinhole inspection method for porous ceramic members, manufacturing method for porous ceramic members, and pinhole inspection device for porous ceramic members - Google Patents

Pinhole inspection method for porous ceramic members, manufacturing method for porous ceramic members, and pinhole inspection device for porous ceramic members Download PDF

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Publication number
JP2000193582A5
JP2000193582A5 JP1998372273A JP37227398A JP2000193582A5 JP 2000193582 A5 JP2000193582 A5 JP 2000193582A5 JP 1998372273 A JP1998372273 A JP 1998372273A JP 37227398 A JP37227398 A JP 37227398A JP 2000193582 A5 JP2000193582 A5 JP 2000193582A5
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porous ceramic
ceramic member
powder
gas
filled
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JP1998372273A
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JP2000193582A (en
JP3839177B2 (en
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Description

【０００１】
【発明の属する技術分野】
本発明は、多孔質セラミック部材隔壁のピンホールの検出を行うための多孔質セラミック部材のピンホール検査方法、多孔質セラミック部材の製造方法、及び、この多孔質セラミック部材のピンホール検査に用いられる検査装置に関する。 [0001]
[Technical field to which the invention belongs]
The present invention is used for a pinhole inspection method for a porous ceramic member for detecting pinholes in a partition wall of a porous ceramic member, a method for manufacturing a porous ceramic member, and a pinhole inspection for the porous ceramic member. Regarding inspection equipment.

【０００６】
【発明が解決しようとする課題】
本発明は、これらの問題を解決するためになされたもので、多孔質セラミック部材の隔壁のピンホールを精度よく検出でき、かつ、生産性の高い多孔質セラミック部材の検査方法、該検査方法を用いた多孔質セラミック部材の製造方法、及び、上記多孔質セラミック部材の検査方法に用いられる検査装置を提供することを目的とするものである。 0006
[Problems to be Solved by the Invention]
The present invention has been made to solve these problems, and is a method for inspecting a porous ceramic member that can accurately detect pinholes in the partition wall of the porous ceramic member and has high productivity, and the inspection method. It is an object of the present invention to provide the method for manufacturing the porous ceramic member used and the inspection apparatus used for the method for inspecting the porous ceramic member.

【０００７】
【課題を解決するための手段】
本発明の多孔質セラミック部材のピンホール検査方法は、一定粒径の粉体を用いて、多孔質セラミック部材の貫通孔を隔てる隔壁のピンホールの検出を行うピンホール検査方法であって、上記多孔質セラミック部材は、その長手方向に多数の貫通孔が並設され、上記貫通孔の一端部は、市松模様に充填材が充填されており、かつ、他端部は、一端部に充填材が充填されていない貫通孔に充填材が充填されている柱状の多孔質セラミック部材であり、上記隔壁のピンホールの検出は、上記粉体を混合した気体を上記貫通孔の一端部から導入した後、上記他端部から排出された気体中の粉体を検出装置で検出することにより行うことを特徴とするものである。
また、本発明の多孔質セラミック部材の製造方法は、多数の貫通孔が長手方向に並設され、前記貫通孔の一端部に市松模様に充填材が充填され、他端部には、前記一端部に充填材が充填されていない貫通孔に充填材が充填された成形体を焼成して多孔質セラミック部材を製造した後、該多孔質セラミック部材の一端から上記貫通孔に粉体を混合した気体を導入し、上記他端部から排出された気体中の粉体を検出装置で検出するピンホール検査を行い、ピンホールが検出されなかった多孔質セラミック部材を製品とすることを特徴とするものである。 0007
[Means for solving problems]
The pinhole inspection method for a porous ceramic member of the present invention is a pinhole inspection method for detecting pinholes in a partition wall separating through holes of a porous ceramic member by using a powder having a constant particle size. A large number of through holes are arranged side by side in the longitudinal direction of the porous ceramic member, one end of the through hole is filled with a filler in a checkered pattern, and the other end is filled with a filler at one end. It is a columnar porous ceramic member in which a filler is filled in a through hole that is not filled with, and in order to detect a pinhole in the partition wall, a gas mixed with the powder is introduced from one end of the through hole. After that, the powder in the gas discharged from the other end is detected by a detection device.
Further, in the method for manufacturing a porous ceramic member of the present invention, a large number of through holes are arranged side by side in the longitudinal direction, one end of the through hole is filled with a checkered material, and the other end is filled with the filler. A molded body filled with a filler in a through hole not filled with a filler was fired to produce a porous ceramic member, and then powder was mixed into the through hole from one end of the porous ceramic member. A feature is that a porous ceramic member in which no pinhole is detected is produced as a product by performing a pinhole inspection in which a gas is introduced and the powder in the gas discharged from the other end thereof is detected by a detection device. It is a thing.

Claims (6)

一定粒径の粉体を用いて、多孔質セラミック部材の貫通孔を隔てる隔壁のピンホールの検出を行うピンホール検査方法であって、前記多孔質セラミック部材は、その長手方向に多数の貫通孔が並設され、前記貫通孔の一端部は、市松模様に充填材が充填されており、かつ、他端部は、一端部に充填材が充填されていない貫通孔に充填材が充填されている柱状の多孔質セラミック部材であり、前記隔壁のピンホールの検出は、前記粉体を混合した気体を前記貫通孔の一端部から導入した後、前記他端部から排出された気体中の粉体を検出装置で検出することにより行うことを特徴とする多孔質セラミック部材のピンホール検査方法。  A pinhole inspection method for detecting a pinhole in a partition wall that separates through-holes in a porous ceramic member by using a powder having a constant particle diameter, wherein the porous ceramic member has a plurality of through-holes in its longitudinal direction. Are arranged in parallel, one end of the through hole is filled with a filler in a checkered pattern, and the other end is filled with a filler in a through hole in which one end is not filled with a filler. Detection of pinholes in the partition wall is performed by introducing a gas mixed with the powder from one end of the through hole and then discharging the powder in the gas discharged from the other end. A pinhole inspection method for a porous ceramic member, which is performed by detecting a body with a detection device. 検出装置として、パーティクルカウンターを用いる請求項１記載の多孔質セラミック部材のピンホール検査方法。  The pinhole inspection method for a porous ceramic member according to claim 1, wherein a particle counter is used as the detection device. 多数の貫通孔が長手方向に並設され、前記貫通孔の一端部に市松模様に充填材が充填され、他端部には、前記一端部に充填材が充填されていない貫通孔に充填材が充填された成形体を焼成して多孔質セラミック部材を製造した後、該多孔質セラミック部材の一端から前記貫通孔に粉体を混合した気体を導入し、前記他端部から排出された気体中の粉体を検出装置で検出するピンホール検査を行い、ピンホールが検出されなかった多孔質セラミック部材を製品とすることを特徴とする多孔質セラミック部材の製造方法。A large number of through holes are juxtaposed in the longitudinal direction, one end of the through hole is filled with a checkered pattern, and the other end is filled with a filler that is not filled with the filler at the one end. After the molded body filled with is fired to produce a porous ceramic member, a gas mixed with powder is introduced from one end of the porous ceramic member into the through hole, and the gas discharged from the other end A method for producing a porous ceramic member, characterized in that a pinhole inspection in which a powder is detected by a detection device and a porous ceramic member in which no pinhole is detected is used as a product. 検出装置として、パーティクルカウンターを用いる請求項３に記載の多孔質セラミック部材の製造方法。The method for producing a porous ceramic member according to claim 3, wherein a particle counter is used as the detection device. 多孔質セラミック部材は、セラミックフィルタとして機能することを特徴とする請求項３又は４に記載の多孔質セラミック部材の製造方法。The method for producing a porous ceramic member according to claim 3 or 4, wherein the porous ceramic member functions as a ceramic filter. 気体吹き込み部と、検査用粉体を収納するための粉体収納部と、検査を行う多孔質セラミック部材を装着するためのセラミック部材装着部と、気体中に混入した粉体を検出するための検出部とを備え、更に、検査時に、前記気体吹き込み部から吹き込まれた気体を前記粉体収納部を通過させ、これにより前記検査用粉体を前記気体とともに前記セラミック部材装着部に装着された多孔質セラミック部材に導くとともに、前記セラミック部材装着部の他端から排出された気体を検出部に導くための配管と、検査終了後に、前記気体吹き込み部から吹き込まれた気体を前記セラミック部材装着部の前記他端に導き、前記多孔質セラミック部材に捕捉された前記検査用粉体を気体とともに粉体収納部に戻すための配管とを備えていることを特徴とする多孔質セラミック部材のピンホール検査装置。  A gas blowing section, a powder storage section for storing inspection powder, a ceramic member mounting section for mounting a porous ceramic member to be inspected, and for detecting powder mixed in the gas And a gas blown from the gas blowing part at the time of inspection to pass through the powder storage part, thereby mounting the inspection powder together with the gas on the ceramic member mounting part. A pipe for guiding the gas discharged from the other end of the ceramic member mounting portion to the detection portion while leading to the porous ceramic member, and the gas blown from the gas blowing portion after the inspection is finished, the ceramic member mounting portion And a pipe for returning the inspection powder captured by the porous ceramic member together with the gas to the powder storage unit. Pinhole inspection apparatus of the porous ceramic member.
JP37227398A 1998-12-28 1998-12-28 Pinhole inspection device for porous ceramic members Expired - Lifetime JP3839177B2 (en)

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JP2000193582A JP2000193582A (en) 2000-07-14
JP2000193582A5 true JP2000193582A5 (en) 2005-09-22
JP3839177B2 JP3839177B2 (en) 2006-11-01

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3904933B2 (en) 2001-03-30 2007-04-11 日本碍子株式会社 Inspection method and inspection apparatus for detecting defects
JP2005283547A (en) 2004-03-31 2005-10-13 Ngk Insulators Ltd Inspection method for ceramic structure
KR20080109031A (en) 2006-03-28 2008-12-16 니뽄 가이시 가부시키가이샤 Method of detecting porous material defect
MX2012009546A (en) 2010-02-17 2012-09-12 Dow Global Technologies Llc Filter and membrane defect detection system.
CA2813354A1 (en) 2010-10-01 2012-04-05 Dow Global Technologies Llc System and method for analyzing pore sizes of substrates
JP5667415B2 (en) * 2010-11-11 2015-02-12 住友化学株式会社 Honeycomb structure inspection method and honeycomb structure inspection apparatus
CN111272350A (en) * 2020-02-19 2020-06-12 安徽中再科技有限公司 Multi-station leak detection device

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