CN108982176B - Method for processing flexible glass plate and method for measuring thermal expansion coefficient - Google Patents
Method for processing flexible glass plate and method for measuring thermal expansion coefficient Download PDFInfo
- Publication number
- CN108982176B CN108982176B CN201810418335.3A CN201810418335A CN108982176B CN 108982176 B CN108982176 B CN 108982176B CN 201810418335 A CN201810418335 A CN 201810418335A CN 108982176 B CN108982176 B CN 108982176B
- Authority
- CN
- China
- Prior art keywords
- processed
- flexible glass
- piece
- less
- glass plate
- 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.)
- Active
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C3/00—Glass compositions
- C03C3/04—Glass compositions containing silica
- C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
- C03C3/089—Glass compositions containing silica with 40% to 90% silica, by weight containing boron
- C03C3/091—Glass compositions containing silica with 40% to 90% silica, by weight containing boron containing aluminium
- C03C3/093—Glass compositions containing silica with 40% to 90% silica, by weight containing boron containing aluminium containing zinc or zirconium
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/16—Investigating or analyzing materials by the use of thermal means by investigating thermal coefficient of expansion
Abstract
The invention discloses a processing method of a flexible glass plate and a measuring method of a thermal expansion coefficient of the flexible glass plate. The processing method of the flexible glass plate comprises the following steps: intercepting a part to be processed from the flexible glass plate, wherein the part to be processed is cuboid, the length of the part to be processed is greater than or equal to a first preset value and less than or equal to a second preset value, and the width of the part to be processed is greater than or equal to a third preset value and less than or equal to a fourth preset value; and processing the part to be processed so as to obtain the piece to be tested with at least three abutting end parts. By using the processing method, the problem that the thermal expansion coefficient of the flexible glass plate cannot be directly measured by using a mandril method because the rigidity of the flexible glass plate is low can be effectively solved. By utilizing the processing method, the measurement result of the thermal expansion coefficient of the flexible glass plate can be accurate, reliable and high in repeatability, and the thermal expansion coefficient of the flexible glass substrate can be rapidly measured.
Description
Technical Field
The invention relates to the field of glass, in particular to a processing method of a flexible glass plate and a measuring method of a thermal expansion coefficient of the flexible glass plate.
Background
The flexible glass substrate is a substrate material for manufacturing the flexible electronic display panel, and the flexible glass substrate needs to be heated for many times in the manufacturing process of the flexible electronic display panel, so that the thermal expansion coefficient of the flexible glass substrate is highly required, and the thermal expansion coefficient is an important index for evaluating the quality of the flexible glass substrate.
At present, the method of measuring the thermal expansion coefficient of glass is the lift pin method, but the lift pin method requires that the measurement sample be a rigid glass rod or glass plate. Therefore, the thermal expansion coefficient of the flexible glass substrate cannot be measured by the lift pin method.
Disclosure of Invention
The invention aims to overcome the problems in the prior art and provides a processing method of a flexible glass plate and a measuring method of the thermal expansion coefficient of the flexible glass plate.
In order to achieve the above object, a first aspect of the present invention provides a method for processing a flexible glass sheet, comprising the steps of: intercepting a part to be processed from the flexible glass plate, wherein the part to be processed is cuboid, the length of the part to be processed is greater than or equal to a first preset value and less than or equal to a second preset value, and the width of the part to be processed is greater than or equal to a third preset value and less than or equal to a fourth preset value; and processing the part to be processed so as to obtain the piece to be tested with at least three abutting end parts.
By utilizing the processing method of the flexible glass plate, the problem that the thermal expansion coefficient of the flexible glass plate cannot be directly measured by utilizing a mandril method because the rigidity of the flexible glass plate is low can be effectively solved. Moreover, by utilizing the processing method of the flexible glass plate, the measurement result of the thermal expansion coefficient of the flexible glass plate can be accurate, reliable and high in repeatability, and the thermal expansion coefficient of the flexible glass substrate can be rapidly measured, so that the quality of the flexible glass plate can be better monitored, and the processing method has great practical value.
Preferably, the piece that awaits measuring is U type, V type or W type, preferably, the piece that awaits measuring is the U type, the arc portion of the piece that awaits measuring does lean on the tip, the free end portion of the piece that awaits measuring does lean on the tip, the terminal surface of the free end portion of the piece that awaits measuring is ground flat.
Preferably, the part to be processed is processed along the length direction of the part to be processed, so that the length direction of the part to be processed is consistent with the length direction of the part to be processed, the part to be processed has a first side and a second side which are opposite in the length direction of the part to be processed, a part of the at least three abutting end parts is located at the first side of the part to be processed, and the rest of the at least three abutting end parts is located at the first side of the part to be processed.
Preferably, the length of the part to be processed is greater than or equal to 2 cm and less than or equal to 6 cm and/or the width of the part to be processed is greater than or equal to 0.5 cm and less than or equal to 4 cm, preferably, the length of the part to be processed is greater than or equal to 3 cm and less than or equal to 5 cm and/or the width of the part to be processed is greater than or equal to 1 cm and less than or equal to 3 cm.
Preferably, the part to be processed is processed at a preset temperature, and preferably, the difference between the preset temperature and the softening temperature of the part to be processed is greater than or equal to 10 ℃ and less than or equal to 50 ℃.
Preferably, the processing is continued for a preset time, and preferably, the preset time is 1 minute or more and 10 minutes or less.
Preferably, the processing is performed by using a mold, preferably, the mold is an inverted U-shaped alumina mold and/or the mold has a surface roughness of 7 microns or less, more preferably, the mold has a surface roughness of 6.3 microns or less.
Preferably, the processing method of the flexible glass plate further comprises annealing the to-be-measured piece and then cooling the to-be-measured piece, and preferably, the to-be-measured piece is naturally cooled to room temperature, wherein the room temperature is 15-30 ℃.
Preferably, the annealing is performed at the annealing point temperature of the piece to be measured for 5 minutes to 40 minutes.
The second aspect of the present invention provides a method for measuring the thermal expansion coefficient of a flexible glass sheet, comprising the steps of: processing the flexible glass plate by using the processing method of the flexible glass plate according to the first aspect of the invention so as to obtain a piece to be tested; and measuring the thermal expansion coefficient of the piece to be measured by using a mandril method.
By utilizing the method for measuring the thermal expansion coefficient of the flexible glass plate, the thermal expansion coefficient of the flexible glass plate can be directly, accurately, reliably and quickly measured, and the measurement result has extremely high repeatability, so that the quality of the flexible glass plate can be better monitored, and the method has great practical value. Moreover, the method for measuring the thermal expansion coefficient of the flexible glass plate has the advantages of simple operation and easy realization.
Detailed Description
The following describes embodiments of the present invention in detail. The following described embodiments are exemplary and are intended to be illustrative of the invention and are not to be construed as limiting the invention.
A method of processing a flexible glass sheet according to an embodiment of the present invention is described below. The processing method of the flexible glass plate comprises the following steps:
and cutting out a part to be processed from the flexible glass plate, wherein the part to be processed is in a cuboid shape. The length of the part to be processed is greater than or equal to a first preset value and less than or equal to a second preset value, and the width of the part to be processed is greater than or equal to a third preset value and less than or equal to a fourth preset value.
And machining the part to be machined so as to obtain the piece to be tested with at least three abutting end parts.
According to the processing method of the flexible glass plate, the part to be processed with the preset size is cut from the flexible glass plate, and at least three abutting end parts are processed on the part to be processed, so that the piece to be tested with high rigidity can be obtained. Because the piece to be measured has higher rigidity, the thermal expansion coefficient of the piece to be measured can be measured by utilizing a push rod method, namely the thermal expansion coefficient of the flexible glass plate can be measured by utilizing the push rod method.
By utilizing the processing method of the flexible glass plate, the problem that the thermal expansion coefficient of the flexible glass plate cannot be directly measured by utilizing a mandril method because the rigidity of the flexible glass plate is low can be effectively solved. Moreover, by utilizing the processing method of the flexible glass plate, the measurement result of the thermal expansion coefficient of the flexible glass plate can be accurate, reliable and high in repeatability, and the thermal expansion coefficient of the flexible glass substrate can be rapidly measured, so that the quality of the flexible glass plate can be better monitored, and the processing method has great practical value.
In addition, the processing method of the flexible glass plate has the advantages of simplicity in operation, easiness in implementation and the like.
The invention also provides a method for measuring the thermal expansion coefficient of the flexible glass plate. The method for measuring the thermal expansion coefficient of the flexible glass plate comprises the following steps:
the flexible glass plate is processed by the processing method of the flexible glass plate according to the embodiment of the invention, so that the piece to be tested is obtained.
And measuring the thermal expansion coefficient of the piece to be measured by using a mandril method.
By utilizing the method for measuring the thermal expansion coefficient of the flexible glass plate, the thermal expansion coefficient of the flexible glass plate can be directly, accurately, reliably and quickly measured, and the measurement result has extremely high repeatability, so that the quality of the flexible glass plate can be better monitored, and the method has great practical value. Moreover, the method for measuring the thermal expansion coefficient of the flexible glass plate has the advantages of simplicity in operation, easiness in implementation and the like.
In some embodiments of the present invention, a method of processing a flexible glass sheet according to embodiments of the present invention may include the steps of:
and cutting out a part to be processed from the flexible glass plate, wherein the part to be processed is in a cuboid shape. That is, the portion to be processed may be a glass sheet. Preferably, the flexible glass sheet may be a flexible glass substrate, which may be used to manufacture flexible electronic display panels.
The length of the portion to be processed may be 2 cm or more and 6 cm or less, and the width of the portion to be processed may be 0.5 cm or more and 4 cm or less. Therefore, the rigidity of the part to be processed can be improved, and the rigidity of the piece to be detected can be further improved.
Preferably, the length of the portion to be processed may be greater than or equal to 3 cm and less than or equal to 5 cm, and the width of the portion to be processed may be greater than or equal to 1 cm and less than or equal to 3 cm. Therefore, the rigidity of the part to be processed can be further improved, and the rigidity of the piece to be tested can be further improved.
The thickness (height) of the portion to be processed may be equal to the thickness (height) of the flexible glass plate. Specifically, the thickness of the portion to be processed may be 0.05 mm or more and 0.1 mm or less.
The part to be processed can be processed along the length direction of the part to be processed by utilizing a mould so as to obtain the piece to be tested with at least three abutting end parts. This can further increase the rigidity of the test object.
Wherein, processing the part to be processed along the length direction of the part to be processed means that: the length direction of the piece to be measured can be consistent with the length direction of the part to be processed, the piece to be measured can be provided with a first side and a second side which are opposite in the length direction of the piece to be measured, one part of the at least three abutting end parts can be located on the first side of the piece to be measured, and the rest parts of the at least three abutting end parts can be located on the first side of the piece to be measured. That is, the at least three abutting ends may be located at the first side and the second side of the to-be-tested member, respectively.
The piece to be tested can be U-shaped, V-shaped or W-shaped. Preferably, the member to be measured may be U-shaped, the arc portion of the member to be measured may be the abutting end portion, and the free end portion of the member to be measured may be the abutting end portion. Specifically, the U-shaped dut may include an arc portion, a first straight portion, and a second straight portion, a first end of the arc portion may be connected to a first end of the first straight portion, and a second end of the arc portion may be connected to a first end of the second straight portion. Wherein the second end of the first flat portion may be the abutting end, and the second end of the second flat portion may be the abutting end.
When the thermal expansion coefficient of the to-be-measured member is measured by the ejector method, the part of the at least three abutting end portions may abut on the ejector, and the remaining part of the at least three abutting end portions may abut on the end of the holder. Specifically, the second end of the first flat portion and the second end of the second flat portion can abut against the ejector rod, and the arc-shaped portion can abut against the end head of the holder.
When the piece to be measured is U-shaped, the mold can be an inverted U-shaped mold. The mold may be an alumina mold. Preferably, the surface roughness of the mold may be 7 μm or less, whereby the surface roughness of the dut may be reduced. More preferably, the surface roughness of the mold may be 6.3 μm or less, whereby the surface roughness of the test object may be further reduced.
In one embodiment of the present invention, the processing may be performed on the portion to be processed at a preset temperature. Preferably, the difference between the preset temperature and the softening temperature of the portion to be processed may be greater than or equal to 10 degrees celsius and less than or equal to 50 degrees celsius. In other words, the predetermined temperature is 10 to 50 degrees celsius higher than the softening temperature of the portion to be processed.
Preferably, the processing lasts for a preset time. Preferably, the preset time may be 1 minute or more and 10 minutes or less. Specifically, the processing is performed while being maintained at the preset temperature for 1 minute to 10 minutes. That is, in performing the processing, the temperature of the portion to be processed may be brought to the preset temperature and maintained at the preset temperature for 1 minute to 10 minutes.
In some examples of the invention, the method of processing a flexible glass sheet may further include annealing the dut and then cooling the dut. Therefore, the stress of the piece to be tested can be eliminated, so that the rigidity of the piece to be tested can be further improved, and the piece to be tested can be prevented from being broken.
Preferably, the annealing may be performed at the annealing point temperature of the test piece for 5 minutes to 40 minutes. That is, the test piece is annealed at the annealing point temperature of the test piece for 5 minutes to 40 minutes. Wherein, the annealing point temperature is that the uniform glass fiber (for example, the diameter of the glass fiber can be 0.65 mm) is cooled down at the speed of 4 degrees centigrade per minute under the action of a certain weight, and the temperature when the elongation speed of the glass fiber reaches 0.14 mm per minute is the annealing point temperature of the glass.
After the annealing is finished, the to-be-detected piece can be naturally cooled to the room temperature, wherein the room temperature can be 15-30 ℃.
After the piece to be measured is naturally cooled, the end face of the free end part of the U-shaped piece to be measured can be ground flat. The free end of the piece to be measured can thereby better abut against the ejector pin. Specifically, an end face of the second end portion of the first flat portion may be ground flat, and an end face of the second end portion of the second flat portion may be ground flat.
The grinding is as follows: a. the end surface of the second end of the first flat portion is itself flat, and the end surface of the second end of the second flat portion is itself flat; b. each of the end surface of the second end portion of the first flat portion and the end surface of the second end portion of the second flat portion may be perpendicular to the length direction of the to-be-measured member; c. the end surface of the second end of the first straight portion and the end surface of the second end of the second straight portion are located on the same plane.
Table 1 lists the components and the proportions of the three glass rods of the formula A, the formula B and the formula C.
TABLE 1
The softening temperature of the glass of the formula A is 895 ℃, and the annealing point temperature of the glass of the formula A is 752 ℃; the softening temperature of the glass of the formula B is 877 ℃, and the annealing point temperature of the glass of the formula A is 735 ℃; the softening temperature of the glass of formulation C was 858 degrees celsius and the annealing point temperature of the glass of formulation a was 715 degrees celsius.
Table 2 lists the dimensions and thermal expansion coefficients of three glass rods of formulation A, formulation B and formulation C, where the test temperature was 50-400 ℃ and the ramp rate was 5 ℃ per minute.
TABLE 2
TABLE 3
Table 3 lists the measured thermal expansion coefficients of the three types of flexible glass plates of the formulations a, B and C obtained by the method for measuring the thermal expansion coefficient of a flexible glass plate according to the embodiment of the present invention. Wherein, the length, width and thickness in table 3 are the length, width and thickness of the portion to be processed of the flexible glass sheet, the test temperature is 50-400 ℃, and the heating rate is 5 ℃ per minute.
As can be seen from tables 2 and 3, the thermal expansion coefficients measured by the pin method are substantially the same for the test piece and the glass rod of the flexible glass plate of the same formulation. Therefore, the measurement result of the method for measuring the thermal expansion coefficient of the flexible glass plate is accurate, reliable and high in repeatability.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used merely for convenience in describing and simplifying the description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (17)
1. A method of processing a flexible glass sheet comprising the steps of:
intercepting a part to be processed from the flexible glass plate, wherein the part to be processed is cuboid, the length of the part to be processed is greater than or equal to a first preset value and less than or equal to a second preset value, and the width of the part to be processed is greater than or equal to a third preset value and less than or equal to a fourth preset value; and
and processing the part to be processed so as to obtain the piece to be measured which has at least three abutting end parts and can measure the thermal expansion coefficient by a mandril method.
2. The method of claim 1, wherein the piece to be tested is U-shaped, V-shaped, or W-shaped.
3. The method of claim 2, wherein the piece to be tested is U-shaped, and the arcuate portion of the piece to be tested is some of the at least three abutting ends, and the free end portion of the piece to be tested is some of the at least three abutting ends, and the end surface of the free end portion of the piece to be tested is ground flat.
4. The method of processing a flexible glass sheet according to claim 1, wherein the portion to be processed is processed along a length direction of the portion to be processed so that the length direction of the member to be processed coincides with the length direction of the portion to be processed, the member to be processed has first and second sides opposite in the length direction thereof, some of the at least three abutting end portions are located on the first side of the member to be processed, and the other of the at least three abutting end portions are located on the second side of the member to be processed.
5. The method of claim 1, wherein the length of the portion to be processed is 2 cm or more and 6 cm or less and/or the width of the portion to be processed is 0.5 cm or more and 4 cm or less.
6. The method of claim 5, wherein the length of the portion to be processed is 3 cm or more and 5 cm or less and/or the width of the portion to be processed is 1 cm or more and 3 cm or less.
7. The method of claim 1, wherein said processing of said portion to be processed is performed at a predetermined temperature.
8. The method according to claim 7, wherein the difference between the predetermined temperature and the softening temperature of the portion to be processed is 10 degrees Celsius or more and 50 degrees Celsius or less.
9. The method of claim 7, wherein the processing is for a predetermined time.
10. The method of claim 9, wherein the predetermined time is greater than or equal to 1 minute and less than or equal to 10 minutes.
11. The method of claim 1, wherein the processing is performed using a mold.
12. The method of claim 11, wherein the mold is an inverted U-shaped alumina mold and/or the mold has a surface roughness of 7 microns or less.
13. The method of claim 12, wherein the mold has a surface roughness of 6.3 microns or less.
14. The method of claim 1, further comprising annealing the test piece and then cooling the test piece.
15. The method of claim 14, wherein the object is naturally cooled to room temperature, wherein the room temperature is 15 to 30 ℃.
16. The method of claim 14, wherein the annealing is performed at the annealing point temperature of the test piece for a period of time ranging from 5 minutes to 40 minutes.
17. A method for measuring the coefficient of thermal expansion of a flexible glass sheet, comprising the steps of:
processing the flexible glass sheet by the method for processing the flexible glass sheet according to any one of claims 1 to 16 to obtain a piece to be tested; and
and measuring the thermal expansion coefficient of the piece to be measured by using a mandril method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810418335.3A CN108982176B (en) | 2018-05-04 | 2018-05-04 | Method for processing flexible glass plate and method for measuring thermal expansion coefficient |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810418335.3A CN108982176B (en) | 2018-05-04 | 2018-05-04 | Method for processing flexible glass plate and method for measuring thermal expansion coefficient |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108982176A CN108982176A (en) | 2018-12-11 |
| CN108982176B true CN108982176B (en) | 2021-06-22 |
Family
ID=64542474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810418335.3A Active CN108982176B (en) | 2018-05-04 | 2018-05-04 | Method for processing flexible glass plate and method for measuring thermal expansion coefficient |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108982176B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112213353B (en) * | 2020-09-09 | 2021-10-22 | 中国科学院金属研究所 | Method for testing linear expansion coefficient |
| CN113203767B (en) * | 2020-12-22 | 2022-05-27 | 湖北新华光信息材料有限公司 | Glass annealing temperature range testing method |
| CN115348737B (en) * | 2022-08-12 | 2023-09-26 | 江苏迪飞达电子有限公司 | Preparation method of double-sided thick copper-aluminum-based mixed pressing plate |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010151557A (en) * | 2008-12-25 | 2010-07-08 | Central Glass Co Ltd | Method of measuring thermal expansion coefficient |
| JP2012154846A (en) * | 2011-01-27 | 2012-08-16 | Jeol Ltd | Sample preparation apparatus |
| JP2013096966A (en) * | 2011-11-07 | 2013-05-20 | Toray Ind Inc | Method of measuring coefficient of thermal expansion |
| CN106353360A (en) * | 2016-10-10 | 2017-01-25 | 中国科学院合肥物质科学研究院 | Testing device for thermal expansion coefficient of irregular-shaped material at low temperature |
| CN107207318A (en) * | 2014-11-20 | 2017-09-26 | 康宁股份有限公司 | To the feedback control laser cutting of flexible glass substrate |
-
2018
- 2018-05-04 CN CN201810418335.3A patent/CN108982176B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010151557A (en) * | 2008-12-25 | 2010-07-08 | Central Glass Co Ltd | Method of measuring thermal expansion coefficient |
| JP2012154846A (en) * | 2011-01-27 | 2012-08-16 | Jeol Ltd | Sample preparation apparatus |
| JP2013096966A (en) * | 2011-11-07 | 2013-05-20 | Toray Ind Inc | Method of measuring coefficient of thermal expansion |
| CN107207318A (en) * | 2014-11-20 | 2017-09-26 | 康宁股份有限公司 | To the feedback control laser cutting of flexible glass substrate |
| CN106353360A (en) * | 2016-10-10 | 2017-01-25 | 中国科学院合肥物质科学研究院 | Testing device for thermal expansion coefficient of irregular-shaped material at low temperature |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108982176A (en) | 2018-12-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108982176B (en) | Method for processing flexible glass plate and method for measuring thermal expansion coefficient | |
| KR101483312B1 (en) | Stable glass sheet and method for making same | |
| CN108445040B (en) | Thermal contact resistance testing method with thermal expansion correction | |
| EP2436662B1 (en) | Ceramic member, probe holder, and method for producing ceramic member | |
| CN104597137B (en) | Ultrasonic testing block group for residual stress of aluminum alloy prestretching plate and application method thereof | |
| CN106290130B (en) | A kind of detection method of overflow brick durability | |
| CN102012461A (en) | Method for testing electrical resistivity of high-resistivity silicon | |
| CN111077422A (en) | Lithium ion battery diaphragm breakdown strength testing device and testing method thereof | |
| US20100000347A1 (en) | Ceramic Member, Probe Holder, and Method of Manufacturing Ceramic Member | |
| CN101858875A (en) | Test method of expansion coefficient of glass thread | |
| CN107478475A (en) | A kind of design method for characterizing the simple tension sample for rolling poor thick plate mechanics behavior | |
| CN110068497B (en) | Clamping device and method for testing axial impact resistance of multiple small columnar samples | |
| CN214583738U (en) | Support is used in thermometer examination | |
| CN105157864A (en) | Hollow round bar specimen inner wall temperature measuring method | |
| CN108663393A (en) | A kind of test method of TFT liquid crystal substrate glass recrystallization temperature | |
| CN111812144B (en) | Method for determining secondary pressing temperature range of optical glass | |
| CN111103460B (en) | Method for improving accuracy of four-probe RS test | |
| KR101904775B1 (en) | Method of determination proper pressure of heat flow meter | |
| CN110017788B (en) | Cable indentation automatic test method based on laser ranging | |
| CN112816365A (en) | Evaluation method for wettability and wetting time of electrolyte to pole piece | |
| JP6072434B2 (en) | Method and apparatus for measuring length change of concrete structure surface | |
| CN108010838B (en) | Plasma processing apparatus and method for measuring temperature of silicon wafer | |
| US20210247337A1 (en) | Method for determining softening temperature of copper and copper alloy | |
| CN105271662A (en) | Acquisition method for precision annealing temperature | |
| CN110082244A (en) | A kind of test impact specimen v-notch Alignment measuring device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20200911 Address after: 050035 No. 9, the Yellow River Avenue, hi tech Zone, Hebei, Shijiazhuang Applicant after: DONGXU OPTOELECTRONIC TECHNOLOGY Co.,Ltd. Address before: The 100075 Beijing Seahawks Fengtai District Science City Road No. 9 Building No. 2 room 266 (Park) Applicant before: TUNGHSU TECHNOLOGY GROUP Co.,Ltd. Applicant before: TUNGHSU GROUP Co.,Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |