WO2001063242A1 - Compression tester - Google Patents
Compression tester Download PDFInfo
- Publication number
- WO2001063242A1 WO2001063242A1 PCT/JP2001/001061 JP0101061W WO0163242A1 WO 2001063242 A1 WO2001063242 A1 WO 2001063242A1 JP 0101061 W JP0101061 W JP 0101061W WO 0163242 A1 WO0163242 A1 WO 0163242A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- pressure
- compression tester
- measurement sample
- elastic sheet
- cylindrical container
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
- G01N3/12—Pressure testing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/025—Geometry of the test
- G01N2203/0256—Triaxial, i.e. the forces being applied along three normal axes of the specimen
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/026—Specifications of the specimen
- G01N2203/0262—Shape of the specimen
- G01N2203/0274—Tubular or ring-shaped specimens
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/38—Concrete; Lime; Mortar; Gypsum; Bricks; Ceramics; Glass
- G01N33/388—Ceramics
Definitions
- the present invention relates to a compression tester for a ceramic measurement sample, and more particularly to a compression tester for a ceramic measurement sample that can be tested with high accuracy up to low pressure.
- a compression test of a ceramic structure such as an 82-cam structure is performed by applying hydrostatic pressure from the outer periphery of the structure.
- a disk-shaped acrylic plate 3 is brought into contact with both end faces of a measurement sample 1 placed in a urethane rubber cylinder 2 having a diameter of 0.5 to 1.0 mm and an inner diameter corresponding to the diameter, and the urethane rubber cylinder In the state where the acryl plate 2 and the acryl plate 3 are fixed with the rubber band 4, they are submerged in the water tank 5 and pressurized.
- Japanese Patent Application Laid-Open No. H10-1979429 discloses a compression tester provided with a cylindrical container, a urethane sleeve and a urethane sheet.
- the test using the compression tester 6 is performed as follows. First, a urethane sleeve 7 is arranged on the outer peripheral surface of the measurement sample 1, and as shown in FIG. 3, the measurement sample 1 is placed on the cylinder while the urethane sheet 9 is interposed between the urethane sleeve 7 and the cylindrical container 8. Installed in the container 8. Next, the test sample 1 is pressurized from the outer peripheral surface by pouring a hydrostatic pressurizing medium between the cylindrical container 8 and the urethane sheet 9 to perform a compression test.
- the wall thickness of the 82 cam structure has become thinner and thinner, and the test pressure has become lower than IMPa.
- the compression tester 6 shown in FIG. 3 has a problem that it is difficult to apply a low pressure to the measurement sample 1 due to the elasticity of the urethane sleeve 7. That is, when a low pressure of less than 1 MPa is applied, the pressure applied to the pressurized medium only causes shrinkage and deformation of the urethane, and there is a disadvantage that the pressure cannot be applied to the measurement sample.
- the present invention has been made in view of such a situation, and an object of the present invention is to provide a compression tester that can load at a lower pressure and that can perform a simple and highly accurate test. Disclosure of the invention
- the hydrostatic pressure medium is applied between the cylindrical container and the elastic sheet.
- a compression testing machine is provided.
- the pressure can be preferably applied even when the pressure applied by the hydrostatic pressure medium is less than IMPa, and the thickness of the elastic sheet is more preferably 0.3 to 5 mm. , 0.5 to 2.0 mm is particularly preferred.
- the hardness of the elastic sheet is 3 5 ⁇ 45 ° is more preferred
- the measurement sample may be a honeycomb structure.
- FIG. 1 is a schematic sectional view showing an example of the compression tester of the present invention.
- FIG. 2 is a perspective view showing an example of a conventional compression tester.
- FIG. 3 is a schematic cross-sectional view showing another example of a conventional compression tester.
- FIG. 4 is a schematic diagram when a measurement is performed using the compression tester of the present invention.
- a ceramic measurement sample is placed in a cylindrical container with an elastic sheet interposed, and a hydrostatic pressure medium is injected between the cylindrical container and the elastic sheet.
- the measurement sample 1 is placed in a measurement container 15 in which an elastic sheet 9 is arranged on the inner wall of a cylindrical container 8, as shown in Fig. 1. Since the cylindrical container 8 and the elastic sheet 9 are previously integrated into the measuring container 15 in advance, and the elastic sheet 9 follows the shape of the measurement sample 1 and closely adheres when pressurized, There is no need to use a urethane sleeve with a shape corresponding to the product shape as in the past. Therefore, the operation is simpler than that of the conventional compression tester shown in FIG.
- the pressurization is stopped by detecting the destruction sound, the measurement sample is not destroyed more than necessary, so that the debris of the measurement sample can be easily cleaned, and the elastic sheet itself can be used as the measurement sample. It also prevents it from being broken by being pressed against debris.
- the compression tester of the present invention since only the elastic sheet 9 is interposed between the measurement sample 1 and the pressurized medium A, the pressure attenuation is extremely small with respect to the pressurization, and the pressurization is performed independently. Can be controlled. That is, due to the elasticity (shrinkage) of the elastic sheet 9, the elastic sheet 9 comes into close contact with the measurement sample 1 immediately after the start of pressurization, and a controlled pressure can be directly applied to the measurement sample 1. Further, since the pressurizing pressure is directly controlled, it is possible to prevent the problem of sample destruction due to a load exceeding the set pressure, and outflow of rejected products due to a load less than the set pressure.
- a rubber material having a thickness of 5 mm or less and a hardness of 30 to 50 ° is used as an elastic sheet for pressing a measurement sample with a pressing medium. It is.
- the pressure decay when pressurized by the pressurized medium is performed.
- it can easily follow and adhere to the shape of a ceramic measurement sample, and a controlled pressure can be directly applied to the measurement sample.
- the thickness of the elastic sheet is more preferably 0.3 to 5 mm, and particularly preferably 0.5 to 2.0 mm.
- the elastic sheet preferably has a hardness of 35 to 45 ° in view of its contractility and durability. The hardness of the elastic sheet was measured based on the hardness test of the “vulcanized rubber physical test method” shown in JIS K6301.
- the material of the elastic sheet various rubber materials such as urethane, silicone, natural rubber, and synthetic rubber can be used, but natural rubber is preferably used because of its difficulty in cutting and tearing and low cost. .
- the pressurizing medium in the compression tester of the present invention may be an incompressible fluid such as water or a compressible fluid such as air. Therefore, it is preferable to use air because the treatment when the elastic sheet is broken is simple and the filling volume is large.
- pressure Pressurization can be performed in one stage because it is small, but of course multi-stage pressurization in two or more stages.
- the compression tester of the present invention detects the start of destruction of the measurement sample by the cracking sound of the ceramic measurement sample Preferably, the pressurization is stopped.
- the AE sensor detects the cracking sound generated at the start of the destruction of the ceramic measurement sample, or the start of the destruction is detected by the pressure change (change in hydrostatic pressure) in the measurement container due to the destruction of the ceramic measurement sample.
- the pressurization is stopped, the measurement sample can be prevented from being further unnecessarily destroyed, so that fragments of the measurement sample are not unnecessarily generated and cleaning can be further facilitated.
- the number of measurement containers provided in the compression testing machine of the present invention There is no particular limitation on the number of measurement containers provided in the compression testing machine of the present invention.However, two compression containers are provided, a measurement sample is charged into the two containers, and a pressurization test is performed at the same time. The operator can prepare the measurement sample to be injected next, and the operator can work efficiently while keeping the position fixed.
- the compression tester of the present invention can be suitably used for a compression test of a ceramic measurement sample, it can be particularly suitably used for a compression test of a ceramic honeycomb structure.
- the present invention will be described in more detail with reference to Examples, but the present invention is not limited to these Examples.
- a compression test of a ceramic honeycomb structure was performed using a compression tester 6 having a cylindrical container 8, a urethane sheet 9 as an elastic sheet, and a measurement container 15.
- the cylindrical container 8 is made of iron, and inside the cylindrical container 8 is a lmm-thick urethane sheet. 9 are located.
- the cylindrical container 8 and the urethane sheet 9 are formed by urethane between a tapered portion 20 provided at both ends of the cylindrical container 8 and a mounting seat 22 provided with the tapered portion 21 having a complementary shape to the tapered portion 20.
- the airtightness is maintained by sandwiching the end of the case 9 and fixing the cylindrical container 8 and the mounting seat 22 with the port 12.
- the mounting seat 22 is configured to be connected to the flange 13, and the cylindrical container 8 is provided with a pressurizing hole 16 to which a pressurizing pipe of a pressurizing device (not shown) is connected.
- the measurement container was fixed to the base 17 (FIG. 4).
- the supporting cylinder 11 was moved to the upper part of the measurement container 15, and the honeycomb structure 1 was mounted thereon.
- the supporting cylinder 11 was lowered to the lower part of the measurement container 15, and the honeycomb structure 1 was placed in the measurement container 15.
- the holding cylinder 10 is placed above the honeycomb structure 1, and the supporting cylinder 11 and the honeycomb structure 1 held between the holding cylinder 10 are moved by about 1 MP so as not to move due to external pressure. The force of a was applied to the support cylinder 11 and the holding cylinder 10.
- FIG. 4 shows the state of the compression tester 6 during pressurization. At the time when the pressure was increased to 0.5 MPa, the honeycomb structure 1 was broken, and the pressure was stopped and the pressure was reduced. The occurrence of destruction was detected by detecting a pressure change (pressure drop) in the measuring container 15.
- the elastic sheet interposed between the pressurized medium and the measurement sample is made thin, its hardness is set to a predetermined value, and pressure decay is almost eliminated. Pressure can be applied with high accuracy. In this case, the pressurization can be adjusted as it is because the controlled pressure can be applied as it is.
- the start of destruction of the measurement sample is detected by detecting a pressure change in the measurement container or the crack generation sound of the measurement sample, and pressurization is stopped. If this is the case, the destruction of the measurement sample can be minimized, the breakage of the elastic sheet itself can be prevented, and the debris of the measurement sample can be more easily cleaned.
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Description
Claims
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP01904456A EP1189051A4 (en) | 2000-02-25 | 2001-02-15 | COMPRESSION TESTER |
| AU32296/01A AU3229601A (en) | 2000-02-25 | 2001-02-15 | Compression tester |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000049428A JP2001242054A (ja) | 2000-02-25 | 2000-02-25 | 圧縮試験機 |
| JP2000-49428 | 2000-02-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2001063242A1 true WO2001063242A1 (en) | 2001-08-30 |
Family
ID=18571378
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2001/001061 Ceased WO2001063242A1 (en) | 2000-02-25 | 2001-02-15 | Compression tester |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20020157454A1 (ja) |
| EP (1) | EP1189051A4 (ja) |
| JP (1) | JP2001242054A (ja) |
| CN (1) | CN1363035A (ja) |
| AU (1) | AU3229601A (ja) |
| WO (1) | WO2001063242A1 (ja) |
| ZA (1) | ZA200108327B (ja) |
Families Citing this family (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6729190B1 (en) | 2002-10-28 | 2004-05-04 | Corning Incorporated | Ceramic honeycomb strength testing apparatus |
| DE102006023110B4 (de) * | 2006-05-16 | 2011-03-10 | Corenso United Oy Ltd. | Verfahren und Vorrichtung zur Prüfung von rohrförmigen Gegenständen |
| US7552648B2 (en) | 2007-09-28 | 2009-06-30 | Halliburton Energy Services, Inc. | Measuring mechanical properties |
| JP4944048B2 (ja) * | 2008-01-30 | 2012-05-30 | 日本碍子株式会社 | 挿入孔を有するハニカム構造体の強度測定方法 |
| FR2934899B1 (fr) * | 2008-08-08 | 2010-09-17 | Commissariat Energie Atomique | Machine d'essai pour appliquer une pression interne uniforme a un tube |
| CN101435756B (zh) * | 2008-12-25 | 2011-07-20 | 陕西科技大学 | 一种换热管外压检测装置及方法 |
| US8783091B2 (en) | 2009-10-28 | 2014-07-22 | Halliburton Energy Services, Inc. | Cement testing |
| KR101113784B1 (ko) * | 2009-11-02 | 2012-02-27 | 한국표준과학연구원 | 금속용기 내압성 실험장치 및 그 실험장치를 이용한 금속용기 내압성 실험방법 |
| US9086348B2 (en) | 2010-04-06 | 2015-07-21 | Varel Europe S.A.S. | Downhole acoustic emission formation sampling |
| US8365599B2 (en) | 2010-04-06 | 2013-02-05 | Varel Europe S.A.S. | Acoustic emission toughness testing for PDC, PCBN, or other hard or superhard materials |
| US8397572B2 (en) | 2010-04-06 | 2013-03-19 | Varel Europe S.A.S. | Acoustic emission toughness testing for PDC, PCBN, or other hard or superhard materials |
| US9297731B2 (en) | 2010-04-06 | 2016-03-29 | Varel Europe S.A.S | Acoustic emission toughness testing for PDC, PCBN, or other hard or superhard material inserts |
| US8596124B2 (en) | 2010-04-06 | 2013-12-03 | Varel International Ind., L.P. | Acoustic emission toughness testing having smaller noise ratio |
| US8322217B2 (en) | 2010-04-06 | 2012-12-04 | Varel Europe S.A.S. | Acoustic emission toughness testing for PDC, PCBN, or other hard or superhard material inserts |
| US8960013B2 (en) | 2012-03-01 | 2015-02-24 | Halliburton Energy Services, Inc. | Cement testing |
| US9249059B2 (en) | 2012-04-05 | 2016-02-02 | Varel International Ind., L.P. | High temperature high heating rate treatment of PDC cutters |
| US8794078B2 (en) | 2012-07-05 | 2014-08-05 | Halliburton Energy Services, Inc. | Cement testing |
| US9234824B1 (en) * | 2013-03-14 | 2016-01-12 | Troxler Electronic Laboratories, Inc. | Gyratory compactor apparatuses and associated methods |
| JP6407845B2 (ja) | 2015-11-27 | 2018-10-17 | 日本碍子株式会社 | アイソスタティック破壊強度試験機、及びアイソスタティック破壊強度試験方法 |
| WO2020236478A1 (en) * | 2019-05-20 | 2020-11-26 | Corning Incorporated | Apparatus and method for evaluating radial compressive strength of a ceramic honeycomb sample |
| CN110514513A (zh) * | 2019-08-09 | 2019-11-29 | 中国石油天然气集团有限公司 | 一种用于板状金属压缩实验中抗弯曲的模具及使用方法 |
| GB201915758D0 (en) | 2019-10-30 | 2019-12-11 | Tokamak Energy Ltd | Fluid free hydrostatic pressure testing |
| CN115165539A (zh) * | 2022-07-28 | 2022-10-11 | 安徽陶铝新材料研究院有限公司 | 一种圆柱试样压缩试验导向装置和方法 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS458944Y1 (ja) * | 1967-04-26 | 1970-04-25 | ||
| JPS5914048U (ja) * | 1982-07-20 | 1984-01-27 | 三井造船株式会社 | 三軸圧縮試験装置 |
| JPS60129641A (ja) * | 1983-12-19 | 1985-07-10 | Agency Of Ind Science & Technol | 異方性材料の引張及び圧縮試験方法 |
| JPH0669815U (ja) * | 1993-03-15 | 1994-09-30 | 日本碍子株式会社 | 圧縮試験機 |
| JPH10197429A (ja) * | 1997-01-10 | 1998-07-31 | Ngk Insulators Ltd | 圧縮試験機 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3906782A (en) * | 1974-02-04 | 1975-09-23 | Engelhard Min & Chem | Isostatic crush strength test system |
| US5339693A (en) * | 1992-12-28 | 1994-08-23 | Sonoco Products Company | Apparatus and method for testing tubular products |
| JP3352980B2 (ja) * | 1999-07-28 | 2002-12-03 | 日本碍子株式会社 | 圧縮試験機 |
-
2000
- 2000-02-25 JP JP2000049428A patent/JP2001242054A/ja active Pending
-
2001
- 2001-02-15 WO PCT/JP2001/001061 patent/WO2001063242A1/ja not_active Ceased
- 2001-02-15 CN CN01800327.3A patent/CN1363035A/zh active Pending
- 2001-02-15 EP EP01904456A patent/EP1189051A4/en not_active Withdrawn
- 2001-02-15 US US09/959,383 patent/US20020157454A1/en not_active Abandoned
- 2001-02-15 AU AU32296/01A patent/AU3229601A/en not_active Abandoned
- 2001-10-10 ZA ZA200108327A patent/ZA200108327B/en unknown
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS458944Y1 (ja) * | 1967-04-26 | 1970-04-25 | ||
| JPS5914048U (ja) * | 1982-07-20 | 1984-01-27 | 三井造船株式会社 | 三軸圧縮試験装置 |
| JPS60129641A (ja) * | 1983-12-19 | 1985-07-10 | Agency Of Ind Science & Technol | 異方性材料の引張及び圧縮試験方法 |
| JPH0669815U (ja) * | 1993-03-15 | 1994-09-30 | 日本碍子株式会社 | 圧縮試験機 |
| JPH10197429A (ja) * | 1997-01-10 | 1998-07-31 | Ngk Insulators Ltd | 圧縮試験機 |
Non-Patent Citations (1)
| Title |
|---|
| See also references of EP1189051A4 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1363035A (zh) | 2002-08-07 |
| ZA200108327B (en) | 2002-10-10 |
| EP1189051A4 (en) | 2002-10-30 |
| AU3229601A (en) | 2001-09-03 |
| EP1189051A1 (en) | 2002-03-20 |
| JP2001242054A (ja) | 2001-09-07 |
| US20020157454A1 (en) | 2002-10-31 |
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