CN113125271A - Hydraulic-pressure-resistant testing device and method for cover plate glass - Google Patents
Hydraulic-pressure-resistant testing device and method for cover plate glass Download PDFInfo
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- CN113125271A CN113125271A CN202110352622.0A CN202110352622A CN113125271A CN 113125271 A CN113125271 A CN 113125271A CN 202110352622 A CN202110352622 A CN 202110352622A CN 113125271 A CN113125271 A CN 113125271A
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- 238000012360 testing method Methods 0.000 title claims abstract description 182
- 239000005357 flat glass Substances 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title claims abstract description 16
- 239000011521 glass Substances 0.000 claims abstract description 181
- 239000007788 liquid Substances 0.000 claims abstract description 158
- 238000006073 displacement reaction Methods 0.000 claims abstract description 40
- 239000000523 sample Substances 0.000 claims abstract description 9
- 239000006059 cover glass Substances 0.000 claims description 33
- 238000007789 sealing Methods 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 4
- 229920001342 Bakelite® Polymers 0.000 claims description 3
- 239000004637 bakelite Substances 0.000 claims description 3
- 238000010998 test method Methods 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 238000005452 bending Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
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- 230000009286 beneficial effect Effects 0.000 description 1
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- 238000004043 dyeing Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000013100 final test Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
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- G—PHYSICS
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- 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
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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
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Abstract
The invention discloses a device and a method for testing hydraulic resistance of cover plate glass, wherein the device comprises a liquid supercharging device, a glass testing jig, a pressure sensor, a laser displacement sensor and a shell; the liquid supercharging device, the glass test fixture and the laser displacement sensor are all arranged inside the shell; the glass to be tested is arranged in the glass testing jig, a liquid pressure testing cavity is formed between the glass testing jig and the shell in a sealed mode, pressurized liquid is arranged inside a cavity of the liquid pressurizing device, the cavity of the liquid pressurizing device is communicated with the liquid pressure testing cavity, a pressure sensor is arranged inside the liquid pressure testing cavity, the laser displacement sensor is arranged on the shell, and a probe of the laser displacement sensor points to the glass to be tested. The laser displacement sensor measures the deformation quantity of the glass to be measured in real time, and the pressure sensor measures the pressure of the pressurized liquid in real time until the glass to be measured is broken. Simple structure can effectively measure the resistant hydraulic pressure ability of glass cover plate.
Description
Technical Field
The invention belongs to the technical field of glass production and manufacturing, and particularly belongs to a cover plate glass hydraulic resistance testing device and method.
Background
The cover plate glass is assembled on the outer surface of the display module and a small gap is reserved between the cover plate glass and the display module, so that damage or functional failure of the display module caused by extrusion deformation and damage of the cover plate glass is reduced. The thinning of the mobile display terminal puts a continuously decreasing demand on the gap, that is, the cover glass is required to be deformed by external pressure as small as possible. Therefore, accurately knowing the amount of impact and pressure deformation of the cover glass is an important factor that must be considered in designing the buffer gap allowance.
The impact resistance and the bending resistance of the cover glass can be verified through a ball drop experiment and a static pressure test. However, some display terminals and instruments are sometimes in an underwater environment, and the hydraulic resistance of the cover glass needs to be tested, namely, the test of the deformation of the cover glass caused by the liquid pressure and the limit pressure test of the cover glass when the cover glass is broken by the liquid pressure. The deformation is controlled within a certain range, so that the cover glass is prevented from being damaged by overlarge or damaged by hydraulic deformation. The deformation and the ultimate pressure of the cover glass are related to the type, the thickness, the shape, the processing quality and other factors of the cover glass, and the influence of the factors on the liquid pressure resistance of the cover glass needs to pass test verification.
At present, the attention of the cover glass industry on the performance of cover glass protection is mainly put on the scratch resistance, impact resistance and bending resistance of the cover glass, and the detection items for evaluating the breakage resistance of the cover glass mainly comprise methods such as 4PB (4 bar static pressure), ball falling and the like. Among them, 4PB can evaluate the bending strength of the glass surface, and falling ball evaluates the breaking energy when the glass surface is subjected to a rigid impact. The strength performance of the cover glass is evaluated from the aspects of toughness and rigidity, but the dynamic deformation and the liquid-resistant limit pressure caused by the liquid pressure of the glass cannot be evaluated, and the deformation and the sealing performance generated by the liquid pressure are important parameters for designing the distance between the cover glass and an internal display device.
Under the condition of liquid pressure, the smaller the deformation of the cover glass is, the larger the liquid-resistant limit pressure is, and the stronger the protection capability of the cover glass on the internal components of the display terminal is. However, the prior art does not have an instrument and a method for measuring the deformation of the cover glass caused by the liquid pressure.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a device and a method for testing the hydraulic resistance of cover glass, which are simple in structure and capable of effectively measuring the hydraulic resistance of the cover glass.
In order to achieve the purpose, the invention provides the following technical scheme:
a cover plate glass hydraulic pressure resistance testing device comprises a liquid supercharging device, a glass testing jig, a pressure sensor, a laser displacement sensor and a shell;
the liquid supercharging device, the glass test fixture and the laser displacement sensor are all arranged inside the shell;
the glass to be tested is arranged in the glass testing jig, a liquid pressure testing cavity is formed between the glass testing jig and the shell in a sealed mode, pressurized liquid is arranged inside a cavity of the liquid pressurizing device, the cavity of the liquid pressurizing device is communicated with the liquid pressure testing cavity, a pressure sensor is arranged inside the liquid pressure testing cavity, the laser displacement sensor is arranged on the shell, and a probe of the laser displacement sensor points to the glass to be tested.
Preferably, the housing is cylindrical, a bracket is arranged on the outer side of the cylindrical housing, and the housing rotates on the bracket around the central axis of the cylinder; the shell and the bracket are fixed through a rotary positioning block.
Preferably, the liquid supercharging device comprises a second hand wheel, a piston rod and a cylinder barrel;
the piston rod is provided with threads, the piston rod is in threaded connection with the shell, the second hand wheel is arranged at one end of the piston rod, the other end of the piston rod is provided with a piston, the piston is inserted into the cylinder barrel and is in sealed connection with the cylinder barrel to form a hydraulic cavity, pressurized liquid is arranged in the hydraulic cavity, and the hydraulic cavity is communicated with the liquid pressure testing cavity.
Preferably, the connection parts of the glass test fixture, the glass to be tested and the shell are provided with sealing rings.
Preferably, the pressurizing cavity of the liquid pressurizing device is connected with the liquid pressure testing cavity through a flow limiting conduit.
Preferably, the distance between the probe of the pressure sensor and the glass to be measured is 1mm-20 mm.
Preferably, the pressurized liquid is dyed water.
Preferably, the glass test fixture is made of bakelite or organic glass.
A cover plate glass hydraulic pressure resistance test method is characterized in that the cover plate glass hydraulic pressure resistance test device based on any one of the above items comprises the following processes of arranging glass to be tested on a glass test fixture, installing the glass test fixture on a shell and sealing to form a liquid pressure test cavity; the pressurized liquid in the liquid pressurizing device is pressed into the liquid pressure intensity detection cavity from the pressurizing cavity, the surface pressure intensity of the glass to be detected gradually rises, the glass to be detected deforms under the pressure of the pressurized liquid, the laser displacement sensor measures the deformation amount of the glass to be detected in real time, and the pressure intensity sensor measures the pressure intensity of the pressurized liquid in real time until the glass to be detected is broken.
Preferably, the method specifically comprises the following steps,
step 4, rotating a second hand wheel to push a piston, extruding the pressurized liquid into a liquid pressure testing cavity, and checking the seal between the glass to be tested and the glass testing jig when the pressurized liquid enters the liquid pressure testing cavity;
and 5, rotating the shell to enable the liquid pressure testing cavity to be above the glass testing jig, continuously rotating the second hand wheel to push the piston to increase the surface pressure of the glass to be tested, recording the liquid pressure and the glass deformation in real time and generating a chart until the glass to be tested is broken.
Compared with the prior art, the invention has the following beneficial technical effects:
the invention provides a cover plate glass hydraulic pressure resistance testing device, which is characterized in that glass to be tested is adhered to a glass testing jig, a liquid pressurizing device is adopted to apply hydraulic pressure, a formed liquid pressure testing cavity is continuously pressurized, different water depth pressures are simulated on the surface of the glass to be tested, and liquid pressure data on the surface of the glass are tested, calculated and output; the instantaneous deformation of the cover plate glass is accurately tested by adopting the laser displacement sensor, data is output, the deformation corresponds to the liquid pressure, and the hydraulic resistance of the cover plate glass can be accurately obtained.
Furthermore, through setting up cylindric casing to set up the support in the outside of casing, make the casing rotate on the support with cylindrical the central axis, conveniently load and unload glass test fixture, avoid glass to drop.
Furthermore, through adopting the manual formula liquid supercharging device, simple structure conveniently tests, can reduce test device's cost.
Furthermore, a sealing ring is arranged at the connecting part of the glass test jig, the glass to be tested and the shell, so that the sealing effect of liquid is improved, and the pressurized liquid is prevented from overflowing.
Furthermore, the pressure of the liquid pressure testing cavity is stably increased by adopting the flow-limiting conduit to connect the pressurizing cavity of the liquid pressurizing device and the liquid pressure testing cavity, so that the laser sensor is prevented from being damaged due to sputtering impact of pressurized liquid when the glass to be tested is damaged, and instruments are prevented from being damaged.
Furthermore, by adopting dyeing water as pressurized liquid, whether the liquid leaks or not can be conveniently observed, and the test result is prevented from being influenced when the liquid leaks.
Drawings
FIG. 1 is a schematic cross-sectional view of a cover glass hydraulic resistance testing device according to the present invention;
FIG. 2 is a schematic top view of a cover glass hydraulic pressure resistance testing apparatus according to the present invention;
FIG. 3 is a schematic cross-sectional view of a deformation measuring chamber, a glass measuring fixture and a hydraulic measuring chamber according to the present invention;
FIG. 4 is a schematic bottom view of the deformation measuring chamber of the present invention;
FIG. 5 is a schematic top view of a glass testing fixture according to the present invention;
FIG. 6 is a schematic top view of a fluid pressure test chamber according to the present invention;
in the drawings: the device comprises a glass testing jig 1, a pressure sensor 2, glass to be tested 3, a first hand wheel 4, a laser displacement sensor 5, a second hand wheel 6, a piston 7, a piston rod 8, a cylinder barrel 9, pressurized liquid 10, a support 11, a rotary positioning block 12, a sealing ring 13, a flow limiting guide pipe 14 and a shell 15.
Detailed Description
The present invention will now be described in further detail with reference to specific examples, which are intended to be illustrative, but not limiting, of the invention.
The invention provides a hydraulic pressure resistance testing device for cover plate glass, which comprises a liquid supercharging device, a glass testing jig 1, a pressure sensor 2, a laser displacement sensor 5 and a shell 15, wherein the liquid supercharging device is arranged on the shell; liquid supercharging device, glass test fixture 1 and laser displacement sensor 5 all set up inside casing 15.
The glass 3 to be tested is arranged in the glass testing jig 1, a liquid pressure testing cavity is formed between the glass testing jig 1 and the shell 15 in a sealed mode, pressurized liquid 10 is arranged inside a cavity of the liquid pressurizing device, the cavity of the liquid pressurizing device is communicated with the liquid pressure testing cavity, the pressure sensor 2 is arranged inside the liquid pressure testing cavity, the laser displacement sensor 5 is arranged on the shell 15, and a probe of the laser displacement sensor 5 points to the center or other testing positions of the glass 3 to be tested.
The liquid pressure generating and testing system is formed by the liquid pressurizing device and the pressure sensor 2 and is used for applying liquid pressure to the glass 3 to be tested and obtaining the liquid pressure on the surface of the glass through real-time measurement and calculation; the glass test fixture 1 forms a test sample assembly fixture and is used for fixing the glass 3 to be tested; the laser displacement sensor 5 forms a glass deformation test system for measuring deformation data of the glass 3 to be measured. The invention provides a device for simulating different water depth pressures on the surface of glass 3 to be tested by continuously pressurizing liquid, testing, calculating and outputting glass surface hydraulic data; and a laser displacement sensor 5 for acquiring data at high frequency in a non-contact manner is adopted to accurately test the instantaneous deformation of the glass 3 to be tested and output data, and the deformation corresponds to the liquid pressure. The glass deformation quantity is tested by a non-contact laser displacement sensor. The liquid pressure data and the glass deformation data are automatically recorded, and the tested data are converted into a more visual curve graph through software.
The invention provides a hydraulic pressure resistance testing method for cover plate glass, which mainly comprises the following processes of adhering and sealing the periphery of glass 3 to be tested on a glass testing jig 1 with a corresponding size, mounting the glass testing jig 1 on a shell 15 and sealing to form a liquid pressure testing cavity; the method comprises the steps that pressurized liquid 10 in a liquid pressurizing device is pressed into a liquid pressure intensity detection cavity from the pressurized cavity, the surface pressure intensity of glass to be detected 3 gradually rises, a pressure intensity sensor 2 measures the pressure intensity of the pressurized liquid 10 in real time and calculates the surface liquid pressure intensity of the glass, the glass to be detected 3 deforms under the pressure of the pressurized liquid 10, and a laser displacement sensor 5 measures the deformation amount of the glass to be detected 3 in real time until the glass to be detected 3 is broken.
Examples
As shown in fig. 1 and 2, the device for testing the hydraulic resistance of cover glass of the present invention includes a liquid pressurizing device, a glass testing jig 1, a pressure sensor 2, glass to be tested 3, a laser displacement sensor 5, a bracket 11, a rotary positioning block 12, a sealing ring 13, a flow-limiting conduit 14, and a housing 15.
The liquid supercharging device, the glass test fixture 1, the pressure sensor 2 and the laser displacement sensor 5 are all arranged in the shell 15; glass test fixture 1 sets up between pressure sensor 2 and laser displacement sensor 5, forms liquid pressure test chamber between glass test fixture 1 and the pressure sensor 2, forms glass deformation test chamber between glass test fixture 1 and the laser displacement sensor 5.
As shown in fig. 3 and 4, the laser displacement sensor 5 may be directly disposed on the housing 15, and the probe of the laser displacement sensor 5 points to the center of the glass 3 to be tested or other testing position. The laser displacement sensor 5 can also be arranged at the center of the glass to form a glass deformation testing cavity, a screw rod is arranged on the glass deformation testing cavity, a first hand wheel 4 is arranged at the end part of the screw rod, and the screw rod is in threaded connection with the shell 15. In the experimental process, can rotate first hand wheel 4, impel glass deformation test chamber through screw rod assembly, make glass test fixture 1 and liquid pressure test chamber between compress tightly sealed.
As shown in fig. 5 and 6, the glass 3 to be tested is disposed in the glass testing jig 1, a liquid pressure testing cavity is formed between the glass testing jig 1 and the housing 15 in a sealed manner, pressurized liquid 10 is disposed inside a cavity of the liquid pressurizing device, the cavity of the liquid pressurizing device is communicated with the liquid pressure testing cavity through a flow limiting conduit 14, a pressure sensor 2 is disposed inside the liquid pressure testing cavity, and the pressure sensor 2 monitors and records the pressure born by the glass 3 to be tested.
The liquid pressurizing device in the embodiment selects a manual piston 7 form, and can also adopt a full-automatic hydraulic cylinder or other liquid pressurizing devices for test pressurization, and the liquid pressurizing device in the embodiment comprises a second hand wheel 6, a piston 7, a piston rod 8 and a cylinder barrel 9; be provided with the screw thread on the piston rod 8, carry out threaded connection between piston rod 8 and the casing 15, second hand wheel 6 sets up the one end at piston rod 8, the other end of piston rod 8 is provided with piston 7, sealing connection forms the hydraulic pressure chamber in piston 7 inserts cylinder 9, hydraulic pressure intracavity portion is provided with pressurized liquid 10, hydraulic pressure chamber intercommunication liquid pressure test chamber, through rotatory second hand wheel 6 at the experiment in-process, and then promote piston 7 and extrude inside pressurized liquid 10, and then increase hydraulic pressure. The manual liquid supercharging device is simple in structure, convenient to test and capable of reducing the cost of the testing device.
The housing 15 in this embodiment is cylindrical, the bracket 11 is provided outside the cylindrical housing 15, and the housing 15 rotates on the bracket 11 about the central axis of the cylinder, i.e., the Z axis in fig. 1; the liquid pressure testing cavity, the glass testing jig and the glass deformation testing cavity can be turned over from top to bottom through rotation, and the glass deformation testing cavity is defined as Y under the liquid pressure testing cavity for convenience of descriptionOn the upper partOn the contrary, YLower partIs generally installed inY is taken out when the glass test fixture is disassembledLower partThe direction is convenient for assembling and disassembling the glass test fixture, and the glass is prevented from falling; liquid pressurized initial YOn the upper partThe direction is that the glass to be tested is pressed and tightly attached to the jig by utilizing the gas in the cavity so as to avoid liquid from leaking into the glass deformation quantity testing cavity during testing; taking Y during pressure testLower partIn the direction of the liquid contacting the glass surface, it can be observed whether the liquid will leak or leak into the glass deformation quantity testing chamber, and the pressurized liquid 10 in this embodiment is dyed water. The housing 15 and the bracket 11 are fixed by rotating the positioning block 12.
The glass test fixture 1 of this embodiment adopts materials such as bakelite or organic glass to make, and the material is comparatively hard firm and can be according to the CNC finishing impression of specified size, and glass test fixture 1's trompil shape, size should correspond with glass shape, size, thickness that awaits measuring, and glass 3 that awaits measuring should accord with terminal assembly requirement with glass test fixture 1's bonding overlap joint size, sealing performance etc.. Sealing rings 13 are arranged at the contact part of the glass testing jig 1 and the liquid pressure testing cavity wall and the contact part of the glass to be tested, so that liquid is prevented from overflowing.
The other side of the pressure-bearing surface of the glass 3 to be measured generates local displacement under the action of liquid pressure, the cover plate glass deforms mainly to be local displacement before being damaged under the action of the liquid pressure, and the central displacement is the largest. The deformation amount of the central position of the glass is tested by adopting a non-contact laser displacement sensor, the instantaneous deformation amount data of the central position of the glass is acquired at high frequency, and the testing position can be a single point, multiple points or a local surface.
The liquid pressure intensity testing cavity is internally provided with a liquid pressure intensity sensor 2, the distance h between the testing surface of the pressure intensity sensor 2 and the surface of the glass to be tested is selected to be 1mm-20mm, and the optimal distance is 5mm in the embodiment, which corresponds to the middle position of the glass to be tested 3.
The bottom of the glass deformation quantity testing cavity is provided with a laser deformation quantity sensor which corresponds to the middle position of the glass 3 to be tested and mainly tests the deformation quantity of the central part of the glass. The liquid pressure sensor 2 tests, calculates and outputs glass surface hydraulic data, and draws a glass surface liquid pressure curve chart through software.
The laser displacement sensor 5 samples and collects the deformation amount of the glass sample at high frequency (100/200/500/1000us selectable sampling period), and the deformation amount before the glass breakage is the maximum deformation amount. The test data is output to a computer and a chart is drawn, and the chart can display the corresponding relation between the liquid pressure and the glass deformation.
The testing end face of the liquid pressure sensor 2 is at a certain distance from the glass 3 to be tested, and the difference exists between the surface pressure of the glass 3 to be tested and the testing data of the liquid pressure sensor 2 during testing.
When the glass is under the test surface of the sensor, the test device adopts YLower partDirection;
the glass surface pressure is P ═ test pressure + rho gh;
rho- - -liquid density in kg/m3；
g----9.8N/kg；
h-height difference from the test surface to the glass surface in m.
In the embodiment, the glass is not used for testing in the lower direction of the upper pressure testing head and the pressure testing head, namely YOn the upper partAnd the final test is completed in the direction, and air is prevented from being arranged between the glass and the test surface. In addition, if an openable and closable air discharge port is additionally arranged to discharge air in the hydraulic test chamber, Y can be usedOn the upper partAnd (4) direction.
The specific operation process of the cover plate glass hydraulic resistance testing method comprises the following steps:
And 3, starting the pressure sensor 2 to detect the liquid pressure, and starting the laser displacement sensor 5 to detect the glass deformation.
Step 4, adjusting the shell 15 to YOn the upper partThe direction, namely the liquid pressure testing chamber is arranged below, the second hand wheel 6 is rotated to push the piston 7, and then the pressure is increasedThe pressure liquid 10 is extruded into the liquid pressure testing cavity, when the pressure liquid 10 is close to the glass testing jig 1, air in the cavity is compressed to generate certain pressure on the surface of the glass 3 to be tested, so that the glass 3 to be tested is tightly attached to the glass testing jig 1 and is completely sealed.
Claims (10)
1. The cover plate glass hydraulic pressure resistance testing device is characterized by comprising a liquid supercharging device, a glass testing jig (1), a pressure sensor (2), a laser displacement sensor (5) and a shell (15);
the liquid supercharging device, the glass test fixture (1) and the laser displacement sensor (5) are all arranged inside the shell (15);
glass (3) that await measuring set up in glass test fixture (1), sealed formation liquid pressure test chamber between glass test fixture (1) and casing (15), liquid supercharging device's the inside pressurized liquid (10) that is provided with of cavity, liquid supercharging device's cavity intercommunication liquid pressure test chamber, the inside in liquid pressure test chamber is provided with pressure sensor (2), laser displacement sensor (5) set up on casing (15), the directional glass (3) that await measuring of probe of laser displacement sensor (5).
2. The cover glass hydraulic resistance test device according to claim 1, wherein the housing (15) is cylindrical, a bracket (11) is arranged on the outer side of the cylindrical housing (15), and the housing (15) rotates on the bracket (11) around the central axis of the cylinder; the shell (15) and the bracket (11) are fixed through a rotary positioning block (12).
3. The cover glass hydraulic resistance testing device of claim 1, wherein the liquid pressurizing device comprises a second hand wheel (6), a piston (7), a piston rod (8) and a cylinder (9);
the hydraulic pressure testing device is characterized in that threads are arranged on the piston rod (8), the piston rod (8) is in threaded connection with the shell (15), the second hand wheel (6) is arranged at one end of the piston rod (8), a piston (7) is arranged at the other end of the piston rod (8), the piston (7) is inserted into the cylinder barrel (9) and is in sealed connection with the cylinder barrel to form a hydraulic cavity, pressurized liquid (10) is arranged inside the hydraulic cavity, and the hydraulic cavity is communicated with the liquid pressure testing cavity.
4. The cover plate glass hydraulic resistance testing device according to claim 1, wherein sealing rings (13) are arranged at the connecting parts of the glass testing jig (1), the glass (3) to be tested and the shell (15).
5. The cover glass hydraulic resistance test device according to claim 1, wherein the pressurizing cavity of the liquid pressurizing device is connected with the liquid pressure testing cavity through a flow limiting conduit (14).
6. The cover glass hydraulic pressure resistance testing device according to claim 1, wherein the distance between the probe of the pressure sensor (2) and the glass (3) to be tested is 1mm-20 mm.
7. The cover glass hydraulic resistance test device according to claim 1, wherein the pressurized liquid (10) is dyed water.
8. The cover plate glass hydraulic pressure resistance testing device according to claim 1, wherein the glass testing jig (1) is made of bakelite or organic glass.
9. A cover glass hydraulic pressure resistance test method, characterized in that, based on the cover glass hydraulic pressure resistance test device of any one of claims 1 to 8, the process comprises the following steps, the glass (3) to be tested is arranged on the glass test fixture (1), the glass test fixture (1) is arranged on the shell (15) to form a liquid pressure test cavity in a sealed manner; the method comprises the steps that pressurized liquid (10) in a liquid pressurizing device is pressed into a liquid pressure intensity detection cavity from the pressurized cavity, the surface pressure intensity of glass (3) to be detected gradually rises, the glass (3) to be detected deforms under the pressure of the pressurized liquid (10), a laser displacement sensor (5) measures the deformation amount of the glass (3) to be detected in real time, and a pressure intensity sensor (2) measures the pressure intensity of the pressurized liquid (10) in real time until the glass (3) to be detected is broken.
10. The cover glass hydraulic resistance test method according to claim 9, characterized by comprising the following steps,
step 1, mounting glass (3) to be tested on a glass test fixture (1);
step 2, rotating the shell (15), and installing the glass test fixture (1) on the shell (15) to form a liquid pressure test cavity in a sealed mode;
step 3, rotating the shell (15) to enable the liquid pressure testing cavity to be located below the glass testing jig (1), starting the pressure sensor (2) to detect the liquid pressure, and starting the laser displacement sensor (5) to detect the glass deformation quantity;
step 4, rotating a second hand wheel (6) to push a piston (7), extruding the pressurized liquid (10) into a liquid pressure testing cavity, and checking the seal between the glass (3) to be tested and the glass testing jig (1) when the pressurized liquid (10) enters the liquid pressure testing cavity;
and 5, rotating the shell (15) to enable the liquid pressure testing cavity to be above the glass testing jig (1), continuously rotating the second hand wheel (6) to push the piston (7) to increase the surface pressure of the glass (3) to be tested, recording the liquid pressure and the glass deformation in real time and generating a chart until the glass (3) to be tested is broken.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114674674A (en) * | 2022-05-26 | 2022-06-28 | 四川航天拓达玄武岩纤维开发有限公司 | Linear measuring device and measuring method for basalt fiber pipe quality inspection |
| CN115683886A (en) * | 2022-12-30 | 2023-02-03 | 四川鑫跃鑫科学仪器有限公司 | Pressure container detection device |
| CN116499888A (en) * | 2023-06-29 | 2023-07-28 | 德阳市产品质量监督检验所 | Pressure testing device and pressure testing method for pressure container |
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Application publication date: 20210716 |