JP5391143B2 - Crack detection method - Google Patents
Crack detection method Download PDFInfo
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- JP5391143B2 JP5391143B2 JP2010108094A JP2010108094A JP5391143B2 JP 5391143 B2 JP5391143 B2 JP 5391143B2 JP 2010108094 A JP2010108094 A JP 2010108094A JP 2010108094 A JP2010108094 A JP 2010108094A JP 5391143 B2 JP5391143 B2 JP 5391143B2
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- mortar
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- pressure space
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/32—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring the deformation in a solid
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B14/00—Crucible or pot furnaces
- F27B14/08—Details peculiar to crucible or pot furnaces
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/30—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring roughness or irregularity of surfaces
Description
本発明は匣鉢の割れ検出方法に関するものである。 The present invention relates to a method for detecting cracks in a mortar.
電子工業製品の原料粉体を焼成する場合には、匣鉢と呼ばれる窯道具の内部に粉体を収納して焼成が行なわれるのが一般的である（例えば、特許文献１）。工業的には所定の焼成温度カーブが形成された連続炉の一端から匣鉢を順次炉内に入れ、炉内を移動させつつ焼成を行い、他端から取り出す連続焼成が実施されている。 When firing raw material powders for electronic industrial products, it is common to store the powder in a kiln tool called a mortar and perform firing (for example, Patent Document 1). Industrially, continuous baking is performed in which a mortar is sequentially placed in one end of a continuous furnace in which a predetermined firing temperature curve is formed, fired while moving in the furnace, and taken out from the other end.
焼成炉の他端から取り出された匣鉢は、粉体回収工程・空匣鉢の清掃工程・空匣鉢の割れ等劣化検出工程を経て、割れ等の劣化が検出されたものを除き、再度、新たな原料粉体の焼成用匣鉢として使用される。 The mortar taken out from the other end of the baking furnace has been subjected to a powder recovery process, an empty mortar cleaning process, and a deterioration detection process such as cracking of the empty mortar, and again, except for those in which deterioration such as cracks has been detected. It is used as a sagger for firing new raw material powders.
従来の劣化検出工程では、匣鉢の４側面と底面の各面に対してレーザーセンサー走査測定を行っていたため、複数のレーザーセンサーや匣鉢の位置決め装置等の設備を備えたレーザーセンサー走査測定専用スペースを設ける必要があり、粉体焼成用プラントの全体構成が複雑になる問題があった。 In the conventional degradation detection process, laser sensor scanning measurement was performed on each of the four side surfaces and bottom surface of the mortar, so it was dedicated to laser sensor scanning measurement with equipment such as multiple laser sensors and mortar positioning devices. There is a problem in that it is necessary to provide a space, and the overall configuration of the powder firing plant becomes complicated.
また、レーザーセンサー走査測定は、投射したレーザーが匣鉢まで往復してくる時間から距離を計測するものであり、割れに至る前段階のヒビ（例えば、０．５ｍｍ程度のヒビ）は検出できない問題があった。更に、レーザーセンサー走査測定は、匣鉢の全面を測定するものではなく、劣化が生じやすい部位を中心にレーザーを照射するため、検出漏れの可能性も否定できず、検出精度に劣る問題があった。 Laser sensor scanning measurement measures the distance from the time the projected laser travels back and forth to the bowl, and cannot detect cracks in the previous stage leading to cracking (for example, cracks of about 0.5 mm). was there. Furthermore, the laser sensor scanning measurement does not measure the entire surface of the sagger, but irradiates the laser mainly on the site where deterioration is likely to occur. Therefore, the possibility of detection failure cannot be denied and there is a problem that the detection accuracy is poor. It was.
本発明の目的は前記問題を解決し、複数のレーザーセンサーや匣鉢の位置決め装置等の設備を備えたレーザーセンサー走査測定専用スペースを設けることなく、割れに至る前段階のヒビも精度よく検出できる匣鉢の割れ検出方法を提供することである。 The object of the present invention is to solve the above-mentioned problems, and it is possible to accurately detect cracks in the previous stage leading to cracking without providing a dedicated laser sensor scanning measurement space equipped with a plurality of laser sensors, a mortar positioning device and the like. It is to provide a method for detecting cracks in a mortar.
上記課題を解決するためになされた本発明の匣鉢の割れ検出方法は、前工程において粉体が回収された匣鉢を、開口部を下向きにして負圧空間形成手段の支持板上に支持したうえ、この支持板の上面に匣鉢を収納できるフードを密着させ、負圧空間形成手段の内部を減圧した状態で負圧空間形成手段の内部に設けたノズルから匣鉢内部に向けて下方からエアを噴出して匣鉢内部に付着している粉体を除去すると同時に、フードの内圧を測定してその変動により匣鉢の割れの有無を検出することを特徴とするものである。 The method of detecting cracks in the sagger of the present invention made to solve the above problem is to support the sagger whose powder was recovered in the previous step on the support plate of the negative pressure space forming means with the opening facing downward. In addition, a hood capable of storing the mortar is closely attached to the upper surface of the support plate, and the inside of the negative pressure space forming means is reduced in pressure from the nozzle provided inside the negative pressure space forming means toward the inside of the mortar. The air is blown out to remove the powder adhering to the inside of the mortar, and at the same time, the internal pressure of the hood is measured to detect the presence or absence of cracking of the mortar.
本発明に係る匣鉢の割れ検出方法は、前工程において粉体が回収された匣鉢を、開口部を下向きにして負圧空間形成手段の支持板上に支持したうえ、この支持板の上面に匣鉢を収納できるフードを密着させ、負圧空間形成手段の内部を減圧した状態で負圧空間形成手段の内部に設けたノズルから匣鉢内部に向けて下方からエアを噴出して匣鉢内部に付着している粉体を除去すると同時に、フードの内圧を測定してその変動により匣鉢の割れの有無を検出する構成により、従来のレーザーセンサー走査測定では検出されなかった、割れに至る前段階のヒビも精度よく検出することができる。また、前記構成により、匣鉢内部に付着している粉体を除去すると同時に匣鉢の劣化検出も行うことができるため、従来劣化検出に必要であった複数のレーザーセンサーや匣鉢の位置決め装置等の設備を備えたレーザーセンサー走査測定専用スペースを省略することができ、工程の短縮が図られる。 The method for detecting cracks in a sagger according to the present invention supports the sagger from which powder has been collected in the previous step on the support plate of the negative pressure space forming means with the opening facing downward, and the upper surface of this support plate. A hood that can hold the mortar is closely attached to the mortar, and air is blown from below toward the inside of the mortar from the nozzle provided inside the negative pressure space forming means while the inside of the negative pressure space forming means is decompressed. At the same time as removing the powder adhering to the interior, the internal pressure of the hood is measured and the presence or absence of cracks in the mortar is detected based on the fluctuation, leading to cracks that were not detected by conventional laser sensor scanning measurements. Pre-stage cracks can also be detected with high accuracy. In addition, with the above configuration, since it is possible to detect the deterioration of the mortar at the same time as removing the powder adhering to the inside of the mortar, a plurality of laser sensors and positioning devices for the mortar that have been conventionally required for the deterioration detection The space dedicated for laser sensor scanning measurement equipped with such facilities can be omitted, and the process can be shortened.
以下に本発明の好ましい実施形態を示す。図１は本発明の匣鉢の割れ検出方法に用いる装置の断面説明図、図２は図１の使用状態説明図であり、各図において、１は負圧空間形成手段、２はエア噴射手段、３はフード、４は匣鉢を示している。 Preferred embodiments of the present invention are shown below. FIG. 1 is a cross-sectional explanatory view of an apparatus used in the method for detecting cracks in a mortar according to the present invention, FIG. 2 is an explanatory view of the use state of FIG. Reference numeral 3 denotes a hood, and 4 denotes a mortar.
焼成工程を経て、焼成炉の他端から取り出された匣鉢内の粉体は、匣鉢の反転や粉体吸引装置による吸引等の手段により、匣鉢４から回収される。粉体を回収後の空匣鉢４は、図１に示すように、負圧空間形成手段１の支持板１２の上部に、開口部を下向きにして配置される。負圧空間形成手段１と匣鉢４の開口部は、シール５を介して密着する構造を有している。負圧空間形成手段１は、ホッパー形状を有し、上端部にはエア吸引手段１１、下端部に粉体排出口１３を有している。また、負圧空間形成手段１は、内部空間にエアノズル等のエア噴射手段２を備え、該エア噴射手段２から匣鉢４の内部に向けて、エア噴射を行うことができる。 The powder in the mortar taken out from the other end of the calcination furnace through the baking process is recovered from the mortar 4 by means such as inversion of the mortar or suction by a powder suction device. As shown in FIG. 1, the empty bowl 4 after collecting the powder is disposed above the support plate 12 of the negative pressure space forming means 1 with the opening facing downward. The negative pressure space forming means 1 and the opening of the mortar 4 have a structure in which the negative pressure space forming means 1 and the mortar 4 are in close contact with each other via a seal 5. The negative pressure space forming means 1 has a hopper shape, and has an air suction means 11 at the upper end and a powder discharge port 13 at the lower end. Further, the negative pressure space forming means 1 includes an air injection means 2 such as an air nozzle in the internal space, and can perform air injection from the air injection means 2 toward the inside of the mortar 4.
エア噴射ノズル２は、気密パッキン２２を介して負圧空間形成手段１の内部空間にスライド可能な構造を有し、スライド操作を可能とするシリンダ２１を備えている。 The air injection nozzle 2 has a structure that can be slid into the internal space of the negative pressure space forming means 1 via an airtight packing 22, and includes a cylinder 21 that enables a sliding operation.
本発明では、図１に示すように、匣鉢４を負圧空間形成手段１の支持板１２上に支持したうえ、この支持板１２の上面に匣鉢を収納できるフード３を、シール５を介して密着させている。フードの内圧は、気圧測定手段３１で測定される。 In the present invention, as shown in FIG. 1, the mortar 4 is supported on the support plate 12 of the negative pressure space forming means 1, and the hood 3 that can store the mortar on the upper surface of the support plate 12 is attached to the seal 5. Are in close contact with each other. The internal pressure of the hood is measured by the atmospheric pressure measuring means 31.
本発明では、エア吸引手段１１からのエア吸引を開始して、負圧空間形成手段の内部を減圧した状態で、負圧空間形成手段１の内部に設けたエア噴射手段２から匣鉢４内部に向けて下方からエアを噴出して匣鉢４内部に付着している粉体を除去すると同時に、フード３の内圧を測定してその変動により匣鉢の割れの有無を検出している。 In the present invention, air suction from the air suction means 11 is started and the inside of the negative pressure space forming means 1 is decompressed from the air injection means 2 provided inside the negative pressure space forming means 1 to the inside of the bowl 4. At the same time, air is blown from below to remove the powder adhering to the inside of the mortar 4, and at the same time, the internal pressure of the hood 3 is measured to detect the presence or absence of cracking of the mortar.
除去された粉体は、その重量に応じて軽量ものはエア吸引手段１１に吸引され、吸引されないものは底部のホッパー１２上に落下する。負圧空間形成手段１は、下側が漏斗の様にすぼまるホッパー形状を有しており、粉体が下部に集まりやすい構造となっている。ホッパーの下部に堆積した粉体は、エア吸引およびエア噴射を停止後、ホッパーの下部の開閉操作を行って、必要量を粉体排出口１３から排出することができる。 Depending on the weight of the removed powder, the light powder is sucked by the air suction means 11 and the powder that is not sucked falls on the hopper 12 at the bottom. The negative pressure space forming means 1 has a hopper shape in which the lower side is squeezed like a funnel, and has a structure in which powder easily collects in the lower part. The powder deposited on the lower part of the hopper can be discharged from the powder discharge port 13 by stopping the air suction and air injection and then opening and closing the lower part of the hopper.
フード３の内圧は、匣鉢４にエア漏れがない正常時には、エア吸引手段１１によるエア吸引状態に関わらず常時大気圧に維持されている。一方、匣鉢４にヒビ割れ等に起因するエア漏れが生じている場合には、エア吸引手段１１によるエア吸引を開始し、匣鉢の開口部の対向空間に負圧空間が形成されると、該負圧空間とフード３内との間で気体分子の拡散が生じ、それに伴って、通常大気圧に維持されているフード３の内圧の低下が生じる。 The internal pressure of the hood 3 is always maintained at atmospheric pressure regardless of the air suction state by the air suction means 11 when the mortar 4 is normal and no air leaks. On the other hand, when air leakage due to cracks or the like occurs in the mortar 4, air suction by the air suction means 11 is started, and a negative pressure space is formed in the opposing space of the opening of the mortar. Gas molecules are diffused between the negative pressure space and the inside of the hood 3, and accordingly, the internal pressure of the hood 3 that is normally maintained at atmospheric pressure is reduced.
即ち、本発明の構成によれば、従来のレーザーセンサー走査測定では検出されなかった、割れに至る前段階のヒビも精度よく検出することができる。また、前記構成により、清掃工程において同時に劣化検出も行うことができるため、従来劣化検出に必要であった複数のレーザーセンサーや匣鉢の位置決め装置等の設備を備えたレーザーセンサー走査測定専用スペースを省略することができ、工程の短縮を図ることができる。 That is, according to the configuration of the present invention, it is possible to accurately detect a crack at a stage before cracking, which was not detected by the conventional laser sensor scanning measurement. In addition, because of the above-described configuration, it is possible to detect deterioration at the same time in the cleaning process. This can be omitted, and the process can be shortened.
１ 負圧空間形成手段
１１ エア吸引手段
１２ 支持板
１３ 粉体排出口
２ エア噴射手段
２１ シリンダ
２２ 気密パッキン
３ フード
３１ 気圧測定手段
４ 匣鉢
５ シール
DESCRIPTION OF SYMBOLS 1 Negative pressure space formation means 11 Air suction means 12 Support plate 13 Powder discharge port 2 Air injection means 21 Cylinder 22 Airtight packing 3 Hood 31 Atmospheric pressure measurement means 4 Agar pot 5 Seal
Claims (1)
負圧空間形成手段の内部を減圧した状態で負圧空間形成手段の内部に設けたノズルから匣鉢内部に向けて下方からエアを噴出して匣鉢内部に付着している粉体を除去すると同時に、
フードの内圧を測定してその変動により匣鉢の割れの有無を検出することを特徴とする匣鉢の割れ検出方法。 The mortar from which the powder was collected in the previous step was supported on the support plate of the negative pressure space forming means with the opening facing downward, and a hood capable of storing the mortar was adhered to the upper surface of the support plate,
When removing the powder adhering to the inside of the mortar by blowing air from below toward the inside of the mortar from the nozzle provided inside the negative pressure space forming means in a state where the inside of the negative pressure space forming means is decompressed at the same time,
A method for detecting cracks in a mortar characterized by measuring the internal pressure of a hood and detecting the presence or absence of cracks in the mortar by its fluctuation.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010108094A JP5391143B2 (en) | 2010-05-10 | 2010-05-10 | Crack detection method |
| CN201110100254.7A CN102243159B (en) | 2010-05-10 | 2011-04-20 | Method of detecting damage on saggar |
| KR1020110037942A KR101790348B1 (en) | 2010-05-10 | 2011-04-22 | Method for detecting cracks in saggar |
| TW100114234A TW201144803A (en) | 2010-05-10 | 2011-04-25 | Crack detection method for cassette bowl |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010108094A JP5391143B2 (en) | 2010-05-10 | 2010-05-10 | Crack detection method |
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| Publication Number | Publication Date |
|---|---|
| JP2011237245A JP2011237245A (en) | 2011-11-24 |
| JP5391143B2 true JP5391143B2 (en) | 2014-01-15 |
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| JP2010108094A Active JP5391143B2 (en) | 2010-05-10 | 2010-05-10 | Crack detection method |
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| JP (1) | JP5391143B2 (en) |
| KR (1) | KR101790348B1 (en) |
| CN (1) | CN102243159B (en) |
| TW (1) | TW201144803A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103439336B (en) * | 2013-08-28 | 2016-01-06 | 合肥恒力电子装备公司 | Sagger crack detection base platform |
| CN105241782A (en) * | 2015-09-22 | 2016-01-13 | 中国航空工业集团公司沈阳发动机设计研究所 | Detection method and apparatus for penetration crack |
| CN106066332B (en) * | 2016-06-16 | 2018-08-17 | 苏州博涛机电设备有限公司 | A kind of continual efficient saggar detection device |
| CN108956181B (en) * | 2018-07-27 | 2024-04-02 | 光惠（上海）激光科技有限公司 | High-power optical fiber laser baking machine test system |
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| JPS581376B2 (en) * | 1978-07-31 | 1983-01-11 | 大塚技研工業株式会社 | Airtightness inspection method and device |
| JP2562584B2 (en) * | 1986-10-29 | 1996-12-11 | 京セラ株式会社 | Crack detection method for ceramic moldings |
| JP3034044U (en) * | 1994-07-25 | 1997-02-14 | 有限会社エム．イー技術研究所 | Device for cleaning the contact surface of the wheel pressing plate with the wheel in the leak inspection device for the wheel for tubeless tires |
| JP3120706B2 (en) * | 1995-08-22 | 2000-12-25 | 住友金属工業株式会社 | Inspection method for members with dense coating |
| JP2003156404A (en) * | 2001-11-26 | 2003-05-30 | Tenryu Seiki Kk | Device for examining pocket and method for examining pocket |
| JP4868987B2 (en) * | 2006-08-31 | 2012-02-01 | サントリーホールディングス株式会社 | Container lid foreign substance removal device |
| CN201051040Y (en) * | 2007-01-31 | 2008-04-23 | 丹东热工仪表有限公司 | Leakage detection device |
| JP5039640B2 (en) * | 2008-06-09 | 2012-10-03 | 株式会社ノリタケカンパニーリミテド | Pot for producing positive electrode active material for lithium ion battery and method for producing the same |
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- 2011-04-22 KR KR1020110037942A patent/KR101790348B1/en active IP Right Grant
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| Publication number | Publication date |
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| JP2011237245A (en) | 2011-11-24 |
| KR101790348B1 (en) | 2017-10-25 |
| CN102243159B (en) | 2015-04-29 |
| KR20110124132A (en) | 2011-11-16 |
| CN102243159A (en) | 2011-11-16 |
| TW201144803A (en) | 2011-12-16 |
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