WO2014174574A1 - Dispositif de test de matériaux et support d'éprouvette, et procédé d'inspection utilisé avec ceux-ci - Google Patents

Dispositif de test de matériaux et support d'éprouvette, et procédé d'inspection utilisé avec ceux-ci Download PDF

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Publication number
WO2014174574A1
WO2014174574A1 PCT/JP2013/061789 JP2013061789W WO2014174574A1 WO 2014174574 A1 WO2014174574 A1 WO 2014174574A1 JP 2013061789 W JP2013061789 W JP 2013061789W WO 2014174574 A1 WO2014174574 A1 WO 2014174574A1
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Prior art keywords
test piece
light
light source
target range
observation target
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PCT/JP2013/061789
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English (en)
Japanese (ja)
Inventor
泰範 川口
田窪　健二
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株式会社島津製作所
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Priority to PCT/JP2013/061789 priority Critical patent/WO2014174574A1/fr
Publication of WO2014174574A1 publication Critical patent/WO2014174574A1/fr

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    • 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
    • G01N3/02—Details
    • G01N3/06—Special adaptations of indicating or recording means
    • G01N3/068—Special adaptations of indicating or recording means with optical indicating or recording means
    • 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
    • G01N3/20—Investigating strength properties of solid materials by application of mechanical stress by applying steady bending forces
    • 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
    • G01N2203/0278—Thin specimens
    • G01N2203/0282—Two dimensional, e.g. tapes, webs, sheets, strips, disks or membranes
    • 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
    • G01N2203/06—Indicating or recording means; Sensing means
    • G01N2203/0641—Indicating or recording means; Sensing means using optical, X-ray, ultraviolet, infrared or similar detectors
    • 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
    • G01N2203/06—Indicating or recording means; Sensing means
    • G01N2203/0641—Indicating or recording means; Sensing means using optical, X-ray, ultraviolet, infrared or similar detectors
    • G01N2203/0647—Image analysis

Definitions

  • the present invention relates to a material test apparatus for observing the strength of a test piece formed of a light-transmitting material such as glass or resin (plastic), and a test piece holder and an inspection method used therefor.
  • FIG. 3A is a diagram for explaining a three-point bending strength test
  • FIG. 3B is a diagram for explaining a four-point bending strength test.
  • a plate-shaped test is performed with the tip of the pressure body (anvil) 101 as a load point and the tips of the two supports (anvils) 103 as fulcrums. The maximum bending stress when the piece 102 is bent by applying a load W is measured.
  • FIG. 3A in the three-point bending strength test, a plate-shaped test is performed with the tip of the pressure body (anvil) 101 as a load point and the tips of the two supports (anvils) 103 as fulcrums. The maximum bending stress when the piece 102 is bent by applying a load W is measured.
  • the tips of the two pressure bodies (anvils) 101 are used as the load points, and the tips of the two support bodies (anvils) 103 are used as the fulcrums.
  • the maximum bending stress when the plate-shaped test piece 102 is bent by applying a load W is measured.
  • FIG. 4 is a schematic configuration diagram showing a conventional material testing apparatus for performing a four-point bending strength test.
  • One direction horizontal to the ground is defined as an X direction
  • a direction horizontal to the ground and perpendicular to the X direction is defined as a Y direction
  • a direction perpendicular to the X direction and the Y direction is defined as a Z direction.
  • the material test apparatus 101 includes a machine base 7, a casing 14 that rotatably supports two screw shafts 5 and 13 whose vertical direction (Z direction) is a rotation axis, and a central portion on the upper surface of the machine base 7.
  • a motor 4 controlled by a control signal from the arithmetic control unit 3, a belt 61 that transmits the rotational force from the motor 4 to the screw shafts 5 and 13, and an interlocking pulley 62 are connected.
  • a gear mechanism 6 is arranged. Thereby, when the motor 4 rotates, the two screw shafts 5 and 13 rotate, and the crosshead 8 is moved in the vertical direction with respect to the machine base 7.
  • Two plate-like supports (anvils) 111 that are parallel to each other are formed on the upper surface of the support 112 so as to be aligned in the X direction.
  • X-direction distance between the two support 111 has a R 1 (e.g., 10 cm).
  • two plate-like pressurizing bodies (anvils) 110 are formed on the lower surface of the load cell 109 so as to be aligned in the X direction.
  • X-direction distance between the two pressing body 110, 110 has a short R 2 (e.g. 5 cm) than R 1 described above.
  • the plate-shaped test piece 2 is placed with the upper ends of the two supports 111 as a fulcrum and the lower ends of the two pressurizers 110 are supported by the support 111 and the pressurizer 110. As a load point, a load W is applied to a predetermined part of the test piece 2.
  • the material test apparatus 101 is used to detect the moment when the test piece 2 is cracked and broken, and the detection method includes acoustic emission (acoustic sound) generated at the moment of breakage. Output) via a microphone (for example, see Patent Document 1) and a method for detecting a sudden change in the load W (test force) applied to the test piece 2 (for example, see Patent Document 2). Is used. In addition to observing not only the moment of destruction but also the state of occurrence and progress of the destruction by continuing to shoot with a high-speed video camera (imaging device) while irradiating light on the observation area of the specimen 2. Has also been done.
  • the only time at which the fracture of the test piece 2 is photographed (recording is completed) is to detect the fracture of the test piece 2.
  • paper is arranged on the back side of the test piece 2, light is irradiated from the front side of the test piece 2 to the observation target range of the test piece 2, and the light transmitted through the test piece 2 is irregularly reflected by the paper.
  • side-illumination epi-illumination
  • the light detected by the high-speed video camera is too diffuse due to reflection by paper. The yield of light is low, and the amount of light necessary for photographing may not be secured.
  • the actual irradiation is about 1 million lux.
  • the time per frame is The amount of light is insufficient because it is as short as 100 nanoseconds.
  • a pulsed light source such as strobe lighting that can obtain a sufficient amount of light can irradiate more than 10 million lux in about 1 to 10 milliseconds. It is necessary to match (timing signal for causing the strobe to emit light), and in such an intensity test, it is impossible to predict the time when the test piece 2 is broken (breaking detection timing).
  • the irradiation time of the light source cannot be matched, it cannot be said that it is an effective means. Furthermore, light is irradiated from the back side of the test piece 2 to the observation target range (the region between the two supports 111 and 111) of the test piece 2 shown in FIG. In the case of transmitted illumination in which the detected light is detected from the front surface side of the test piece 2, it is necessary to arrange an illumination optical system on the back surface side of the test piece 2, but the light from the light source is blocked by the support 111. As a result, the entire observation target range of the test piece 2 may not be irradiated. That is, the conventional material testing apparatus 101 cannot secure a sufficient space for disposing the illumination optical system on the back side of the test piece 2.
  • the present inventors have found that the back side of the test piece is recursive. Light is transmitted through the test piece again by placing a reflective material, irradiating the observation target area of the test piece with light from the surface side of the test piece, retroreflecting the light transmitted through the test piece with the retroreflective material It has been found that it is effective to perform coaxial epi-illumination that detects from the surface side of the test piece.
  • the material testing apparatus includes a support that supports a test piece, a pressurizing body that applies a load to the test piece, and a region to be observed on the test piece that is irradiated with light from the surface side of the test piece.
  • a material testing apparatus comprising: a light source unit configured to detect light from an observation target range of the test piece from a surface side of the test piece; and is disposed between the light source unit and the image sensor.
  • a half mirror that guides light from the light source unit in a predetermined direction and guides light from a direction opposite to the predetermined direction to the imaging device, and is disposed on the back side of the test piece, and emits light in the same direction as the incident direction.
  • a retroreflective member for retroreflecting the light, and the light from the light source unit is irradiated to the observation target range of the test piece via the half mirror, and the light transmitted through the observation target range of the test piece is recursively After being retroreflected by a reflective member Again transmitted through the object of observation range of the test piece, via the half mirror so that detected on the imaging device.
  • the “predetermined direction” is an arbitrary direction predetermined by a designer or the like, for example, a horizontal direction.
  • the half mirror according to the present invention reflects light from the light source unit in a predetermined direction, transmits light from a direction opposite to the predetermined direction and guides it to the imaging device, or transmits light from the light source unit to the predetermined direction. In addition to being transmitted in the direction, it is possible to reflect light from the direction opposite to the predetermined direction and guide it to the image pickup device, so-called coaxial epi-illumination.
  • the “observation target range” is an arbitrary region determined in advance by a designer or the like, for example, a region surrounded by a support where a crack (crack) progresses due to a strong stress load, or pressurization It becomes an area surrounded by the body.
  • the “surface side of the test piece” may be the upper surface of the test piece or the lower surface of the test piece. Therefore, when the “surface side of the test piece” is the upper surface of the test piece, the “back surface side of the test piece” is the lower surface of the test piece, while the “surface side of the test piece” is the lower surface of the test piece. The “back side of the test piece” is the upper surface of the test piece.
  • the “support” may be any material that can support the test piece, and examples thereof include two plate-like bodies and a cylindrical body.
  • the “pressurizing body” may be anything that can apply a load to the test piece. For example, one or two plate-shaped bodies, a cylindrical body, a rod-shaped piston (columnar shape) Body) and the like.
  • the retroreflective member is arranged on the back side of the test piece instead of the irregular reflection by paper, the light can reach the image pickup device with high yield by utilizing the retroreflectivity of the reflection. As a result, even if a high-speed video camera is used as the image sensor, the amount of light is not insufficient, and the visibility of the image can be improved.
  • the retroreflective member is a flexible plate-like body having a plurality of microprisms formed on the surface, or a flexible plate-like body having a plurality of glass beads arranged on the surface. It may be arranged between the test piece and the support or between the test piece and the pressurizing body. According to the material testing apparatus of the present invention, since the retroreflective member is thin and flexible, it can be sandwiched between the test piece and the support body without being affected by the deformation of the test piece. Furthermore, the configuration of the apparatus can be realized at a low cost.
  • the pressure body is two plate-shaped pressure bodies parallel to each other, and the light from the half mirror is transmitted between the two plate-shaped pressure bodies. You may make it provide the specular reflector which irradiates the observation object range of a test piece, and guides the light from the observation object range of the test piece to the half mirror.
  • the support is two plate-like supports parallel to each other, and the distance between the two plate-like supports is the two plate-like pressures. You may make it shorter than the distance between bodies.
  • the light source unit may be a continuous light source
  • the imaging device may be a high-speed video camera.
  • the “high-speed video camera” is, for example, a camera capable of high-speed shooting with an exposure time of the order of 100 nanoseconds.
  • the test piece holder of the present invention includes a light source unit that irradiates light from the surface side of the test piece to the observation target range of the test piece, and light from the observation target range of the test piece.
  • An image sensor that detects from the light source, and a half that is disposed between the light source unit and the image sensor and guides light from the light source unit in a predetermined direction and guides light from a direction opposite to the predetermined direction to the image sensor.
  • the inspection method of this invention irradiates light from the surface side of the said test piece to the support body which supports a test piece, the pressurization body which loads a load to the said test piece, and the observation object range of the said test piece
  • a light source unit, an image sensor that detects light from the observation target range of the test piece from the surface side of the test piece, and the light source unit and the image sensor are arranged, and the light from the light source unit is predetermined.
  • the reflected light is the retroreflective part
  • is transmitted through the observation target range of the test piece again via the half mirror is to include a detection step is detected on the imaging device.
  • the schematic block diagram which shows the material testing apparatus which concerns on embodiment of this invention. Sectional drawing of the principal part of the material testing apparatus seen from the direction different from FIG. The figure for demonstrating a bending strength test.
  • the schematic block diagram which shows the conventional material test apparatus.
  • FIG. 1 is a schematic configuration diagram showing a material testing apparatus according to an embodiment of the present invention.
  • FIG. 2 is a cross-sectional view of the main part of the material testing apparatus viewed from a direction different from FIG.
  • the test piece 2 used in this embodiment is a glass substrate, and a case where a four-point bending strength test is performed on the glass substrate to observe the breakage of the glass substrate in a bright field will be described.
  • symbol is attached
  • the material testing apparatus 1 is attached to a machine base 7, a casing 14 that rotatably supports two screw shafts 5, 13 whose vertical direction (Z direction) is a rotation axis, and a central portion on the upper surface of the machine base 7.
  • Removable support base 12 (part of the test piece holder) and screw shafts 5 and 13 can be screwed to move up and down with respect to the machine base 7 as the screw shafts 5 and 13 rotate.
  • a load cell 9 (part of the test piece holder) that can be attached to and detached from the center of the lower surface of the cross head 8, a coaxial epi-illumination unit 20 for photographing the test piece 2, and a specular reflector 30 And an arithmetic control unit 3 that performs control and arithmetic processing, and a retroreflecting material 40 (a part of the test piece holder) disposed on the back side of the test piece 2.
  • Two plate-like supports (anvils) 11 that are parallel to each other are formed on the upper surface of the support base 12 so as to be aligned in the X direction.
  • X-direction distance between the two support 11, 11 has R 2 (for example, 5 cm).
  • two plate-like pressure bodies (anvils) 10 that are parallel to each other are formed on the lower surface of the load cell 9 so as to be aligned in the X direction, and the X direction between the two pressure bodies 10 and 10 is formed.
  • the distance is R 1 (for example, 10 cm) longer than R 2 described above.
  • the plate-shaped test piece 2 is placed with the upper end portions of the two support bodies 11 as fulcrums and the lower end portions of the two pressurization bodies 10 by the support body 11 and the pressure body 10.
  • a load W is applied to a predetermined part of the test piece 2 as a load point.
  • the coaxial epi-illumination unit 20 includes a light source unit 21, an image sensor 22, and a flat half mirror 23.
  • the light source unit 21 may be a light source that can obtain a necessary amount of light, and is a continuous light source such as metahalide illumination, for example.
  • a halogen lamp, a xenon lamp, a laser, an LED, a fluorescent lamp, a light bulb, or the like may be used.
  • the wavelength of the emitted light is not specified, and may be white light or light having a specific wavelength. Furthermore, it is not limited to visible light, but may be infrared rays or ultraviolet rays.
  • the image sensor 22 is, for example, a high-speed video CCD camera capable of high-speed shooting with an exposure time on the order of 100 nanoseconds.
  • a solid-state imaging device such as a MOS or CMOS, a photodiode array, or the like may be used.
  • a half mirror is provided in front of the image sensor 22 (Y direction) and below the light source unit 21 ( ⁇ Z direction). 23 is arranged. As a result, 50% of the light beam traveling in the ⁇ Z direction is changed to the Y direction by the half mirror 23, and 50% of the light beam traveling in the ⁇ Y direction is transmitted through the half mirror 23 and guided to the image sensor 22. It has come to be.
  • the specular reflector 30 has a flat plate shape (for example, 5 cm ⁇ 7.1 cm ⁇ 7.1 cm), and is disposed between the two pressure bodies 10 and 10.
  • the light beam traveling in the Y direction is arranged to change the traveling direction to the -Z direction by the specular reflector 30, and the light beam traveling in the Z direction is arranged to change the traveling direction to the -Y direction by the specular reflector 30.
  • Yes. Therefore, the light beam from the half mirror 23 is irradiated to the observation target range (the region between the pressurizing bodies 10 and 10) of the test piece 2, and the light beam from the observation target range of the test piece 2 is guided to the half mirror 23. ing.
  • the retroreflective member 40 includes a flexible plate-like body having a plurality of microprisms formed on the surface, a flexible plate-like body having a plurality of glass beads arranged on the surface, and the like.
  • glass beads / fabric manufactured by Sumitomo 3M Co., Ltd., trade name “8910”
  • prism / film manufactured by Sumitomo 3M Co., Ltd., trade name “PV9110N”
  • micro prism / film manufactured by Sumitomo 3M Co., Ltd.
  • Trade name “6260” Trade name “6260”
  • the traveling direction of the incident light beam is different from the traveling direction of the reflected light beam by 180 °.
  • the retroreflecting material 40 is disposed on the supports 11 and 11 on the back side of the test piece 2.
  • the distance between the back surface of the test piece 2 and the retroreflecting material 40 increases, the image becomes a double image when the focal points of the light source unit 21 and the lens of the image sensor 22 do not match. There is a possibility that "double reflection" will occur. Therefore, the distance between the back surface of the test piece 2 and the retroreflecting material 40 should be small, and the test piece 2 is preferably placed on the retroreflecting material 40.
  • the measurer places the retroreflecting material 40 on the upper ends of the two supports 11 and 11 and then places the test piece 2 on the retroreflecting material 40 (placement step).
  • the measurer turns on the power of the light source unit 21 and the image sensor 22. Thereby, the light beam emitted in the ⁇ Z direction from the light source unit 21 changes the traveling direction to the Y direction by the half mirror 23.
  • the light beam traveling in the Y direction is irradiated to the observation target range of the test piece 2 in the ⁇ Z direction by changing the traveling direction to the ⁇ Z direction by the specular reflector 30. Thereafter, the light beam transmitted through the observation target range of the test piece 2 in the ⁇ Z direction is changed in the traveling direction to the reverse direction (Z direction) by the retroreflecting material 40, and this time the observation target range of the test piece 2 is changed to the Z direction. Irradiated. The light beam transmitted through the observation target range of the test piece 2 in the Z direction is changed in the traveling direction to the ⁇ Y direction by the specular reflector 30. Then, the light beam traveling in the ⁇ Y direction passes through the half mirror 23 and is guided to the image sensor 22 (detection step).
  • the measurer inputs a measurement start signal to the arithmetic control unit 3 to start measurement.
  • a measurement start signal is input, the motor 4 rotates at a constant speed and the crosshead 8 descends at a predetermined speed by the control signal from the arithmetic control unit 3, and the support body 11 and the pressure body 10 move up and down.
  • the interval approaches at a constant speed, and as a result, a bending test force is applied to the test piece 2 to push and bend the central portion (predetermined part) of the test piece 2 downward ( ⁇ Z direction).
  • the test force detection signal is taken into the calculation control unit 3 at regular intervals, and a predetermined calculation process is performed to calculate the test force against displacement.
  • the test piece 2 When the test force exceeds the bending strength of the test piece 2, the test piece 2 is cracked and broken, but the image sensor 22 continues to be irradiated with a light beam from the observation target range of the test piece 2. Therefore, the video from the occurrence of the crack to the destruction is taken at high speed.
  • the retroreflective member 40 is thin and flexible, it is not affected by the deformation of the test piece 2, and between the test piece 2 and the support 11. Can be pinched. Thereby, since the retroreflective member 40 is arranged on the back side of the test piece 2 instead of irregular reflection by paper, the light can reach the image pickup device 23 with high yield due to the recursiveness of reflection, and as a result. Even if a high-speed video CCD camera having an exposure time on the order of 100 nanoseconds is used as the image pickup device 23, the light quantity is not insufficient and the visibility of the image can be improved.
  • two plate-like supports (anvils) 11 are formed on the upper surface of the support 12, and two plate-like pressure bodies are formed on the lower surface of the load cell 9.
  • 10 shows a configuration for performing a four-point bending strength test.
  • a cylindrical support body is formed on the upper surface of the support base, and a cylindrical pressure body is formed on the lower surface of the load cell.
  • the configuration may be such that the “ON RING” test is performed.
  • two plate-like supports 11 are formed on the upper surface of the support base 12, and two plate-like pressure bodies 10 are formed on the lower surface of the load cell 9. The four-point bending strength test is shown.
  • a cylindrical support is formed on the upper surface of the support base, and a rod-shaped piston (columnar pressure body) with a pointed tip is formed on the lower surface of the load cell.
  • the punching test may be performed.
  • the test piece and the retroreflective material are fixed by being sandwiched from above and below by a test piece holder having two circular holes. Become. Then, the optical axis of the coaxial epi-illumination is changed from the X direction to the Z direction with a reflecting mirror from below, and the test piece is photographed from below.
  • the present invention can be used for a material testing apparatus for observing the strength of a test piece formed of a light-transmitting material such as glass or resin (plastic).

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  • 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)

Abstract

L'invention concerne un dispositif de test de matériaux capable de capturer avec précision l'instant auquel une éprouvette se rompt. L'invention concerne un dispositif de test de matériaux (1) muni d'un support (11) pour supporter une éprouvette (2), d'une presse (10) pour appliquer une charge sur l'éprouvette (2), d'une source lumineuse (21) pour émettre de la lumière depuis le côté de surface avant de l'éprouvette (2) sur la zone à observer sur l'éprouvette (2), et d'un élément d'imagerie (22) pour détecter, depuis le côté de surface avant de l'éprouvette (2), la lumière venant de la zone à observer sur l'éprouvette (2), le dispositif comprenant également un demi-miroir (23) et un rétroréflecteur (40) qui est placé derrière l'éprouvette (2) et rétroréfléchit la lumière dans la même direction que la direction incidente. Le dispositif de test de matériaux (1) est conçu de telle sorte que la lumière issue de la source lumineuse (21) irradie la zone à observer sur l'éprouvette (2) par l'intermédiaire du demi-miroir (23) et, après que la lumière qui a traversé la zone à observer sur l'éprouvette (2) ait été rétroréfléchie par le rétroréflecteur (40), la lumière traverse à nouveau la zone à observer sur l'éprouvette (2) et est détectée par l'élément d'imagerie (22) après être passée à travers le demi-miroir (23).
PCT/JP2013/061789 2013-04-22 2013-04-22 Dispositif de test de matériaux et support d'éprouvette, et procédé d'inspection utilisé avec ceux-ci WO2014174574A1 (fr)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017032325A (ja) * 2015-07-30 2017-02-09 株式会社島津製作所 Ｘ線観察用の曲げ試験機
CN111487122A (zh) * 2020-05-27 2020-08-04 广东科艺新泰建筑科技开发有限公司 一种户外物件承载结构的抗拉检测装置
JP2020159826A (ja) * 2019-03-26 2020-10-01 株式会社島津製作所 材料試験機

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JPH04346053A (ja) * 1991-05-24 1992-12-01 Nkk Corp 引張試験片の絞り測定方法及び装置
JP2004101194A (ja) * 2002-09-04 2004-04-02 Lasertec Corp 光学装置並びにそれを用いた画像測定装置及び検査装置
JP2007225519A (ja) * 2006-02-24 2007-09-06 Shimadzu Corp 材料試験方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04346053A (ja) * 1991-05-24 1992-12-01 Nkk Corp 引張試験片の絞り測定方法及び装置
JP2004101194A (ja) * 2002-09-04 2004-04-02 Lasertec Corp 光学装置並びにそれを用いた画像測定装置及び検査装置
JP2007225519A (ja) * 2006-02-24 2007-09-06 Shimadzu Corp 材料試験方法

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017032325A (ja) * 2015-07-30 2017-02-09 株式会社島津製作所 Ｘ線観察用の曲げ試験機
JP2020159826A (ja) * 2019-03-26 2020-10-01 株式会社島津製作所 材料試験機
JP7167803B2 (ja) 2019-03-26 2022-11-09 株式会社島津製作所 材料試験機
CN111487122A (zh) * 2020-05-27 2020-08-04 广东科艺新泰建筑科技开发有限公司 一种户外物件承载结构的抗拉检测装置

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