CN209342065U - The test device of high-temp solid material at high temperature contact angle - Google Patents
The test device of high-temp solid material at high temperature contact angle Download PDFInfo
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- CN209342065U CN209342065U CN201822124457.XU CN201822124457U CN209342065U CN 209342065 U CN209342065 U CN 209342065U CN 201822124457 U CN201822124457 U CN 201822124457U CN 209342065 U CN209342065 U CN 209342065U
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Abstract
The test device of consistent high-temp solid material at high temperature contact angle includes atmosphere control system, high temperature melting device, optical system and computer.The utility model has the characteristics that measuring accuracy is high, test scope is wide, high degree of automation and test repeatability are good to the measurement of high-temp solid material at high temperature contact angle.
Description
Technical field
The utility model relates to high-temp solid material, the test of especially a kind of high-temp solid material at high temperature contact angle is filled
It sets.
Background technique
In high-temp solid investigation of materials, contact angle is of great significance to material at high temperature performance study and application, but
Under hot environment, due to temperature gradient etc. in material physical chemistry variation and high temperature lower chamber, measurement observation material at high temperature
The test of superficial phenomenon is very difficult.And the high-performance that high-temperature atmosphere furnace is developed using international advanced technology is high energy-efficient new
Type electric furnace has the advantages of multiple atmospheres such as high vacuum, inert protective atmosphere, air atmosphere, oxygen atmosphere control, is that measurement is high
One of the important equipment of adiabator contact angle.
Chinese patent CN1265201C discloses the dress of a kind of on-line measurement surface tension of high-temperature melt, contact angle and density
It sets, using the data of sessile drop method measurement sample molten condition under the high temperature conditions, using improving instrument shooting precision and observation
The degree of automation realizes on-line testing result.Described in the patent specification, which cannot be to atmosphere in test process
It is controlled, therefore is not capable of measuring and needs vacuum/specific atmospheric conditions sample (such as part metals and high molecular material are in height
Under the conditions of warm air, chemical change occur causes test result inaccurate), the sample being only suitable only under test air conditions；Furthermore
The device of the utility model leads to camera to the disturbance of full spectrum light line due to high-temperature electric resistance furnace cavity inner temperature gradient during the test
There is error in imaging, it is difficult to measure the precise information of sample.
Therefore, the contact angle of high-temp solid material can be tested and realize that atmosphere is controllable, temperature control is smart by developing one kind
The high-temperature atmosphere furnace high, reproducible, automatization level is high is spent, the function of multi-use is realized, is current colleges and universities, scientific research institutions
Equal scientific research institutions' researching high-temperature solid material studies one of the equipment needed.
Utility model content
In order to overcome the above-mentioned prior art insufficient, the utility model provides a kind of survey of high-temp solid material at high temperature contact angle
Trial assembly is set and measurement method, which has measuring accuracy height, test scope to the measurement of high-temp solid material at high temperature contact angle
Extensively, high degree of automation and the good feature of test repeatability.
The technical solution of the utility model is as follows:
A kind of test device of high-temp solid material at high temperature contact angle, it is characterized in that, which includes control climate system
System, high temperature melting device, optical system and computer, the atmosphere control system are storage cylinder, vacuum pump group and control climate
Cabinet, the high temperature melting device include air inlet, exhaust outlet, high-temperature corundum pipe furnace, Si-Mo rod, sample stage, thermocouple, described
Si-Mo rod be wound around the high-temperature corundum pipe furnace periphery, the both ends of the high-temperature corundum pipe furnace by seal assembly and
One end of refractory metal flange seal, the high-temperature corundum pipe furnace sets up air inlet and exhaust outlet separately up and down, and the center of the other end is set
Observation window is set, the sample stage is placed in the center flat-temperature zone of alundum furnace, and the lower surface center of the sample stage is upward
A circular groove is dug, the thermocouple is by the way that in the alundum tube furnace wall insertion circular groove, sample is placed in described
On sample stage；The sealing of the storage cylinder, control climate cabinet and air inlet is connected using stainless steel tube, it will with atmosphere triple valve
The vacuum pump is connected with exhaust outlet sealing；The optical system includes high speed camera, background light source and light source controller,
The high speed camera is placed in outside the observation window of the alundum furnace, the sample, observation window and the high speed camera
It is co-located on the central axes of the alundum furnace；The background light source is below the high speed camera, the back
Scape light source is connected with the light source controller, the input terminal phase of the output end of the high speed camera and the computer
Even, the output end of the thermocouple is connected with the input terminal of the computer, an output end of the computer and
The control terminal of the electric control gear of the Si-Mo rod is connected, and the high speed camera is 6.5 times of high speed cameras continuously amplified, most
It is at high speed 2000 photos/second, data acquisition speed: 5G data/second；The observation window is made of sapphire material,
The control climate cabinet is made of pressure gauge, atmosphere three-way valve, gas flowmeter.
The storage cylinder includes air bottle, nitrogen cylinder, argon bottle, helium tank, the atmosphere of the high-temperature corundum pipe furnace
Control is selected by the control climate cabinet.
Using the test device of above-mentioned high-temp solid material at high temperature contact angle to the high temperature contact angle of high-temp solid material
Measurement method, including the following steps:
1) sample to be tested is placed on the sample stage, the high-temperature corundum pipe furnace is closed, according to be measured
Sample material situation, furnace chamber are interior by repeatedly vacuumizing-atmosphere cleaning, atmosphere test condition needed for reselection sample: air pressure
1.0 × 10-3-1.1×105Pa, inert atmosphere/vacuum/atmosphere, so that sample will not be because of testing environment during the test
It interferes and bring test error；
2) the high-temperature corundum pipe furnace described in is heated to hot conditions needed for sample to be tested, passes through the thermocouple survey close to sample
Amount temperature avoids the spacing due to thermocouple and sample to be tested by the heating of the computer control Si-Mo rod
From test error caused by the temperature difference of generation；
3) high speed camera described in simultaneously opens background light source, and the contour images data for acquiring sample high-resolution in real time simultaneously input
The computer；
4) data described in the computer stored described in, using the prior art carry out image procossing, obtain under high temperature to
The contact angle of sample.
The high-temperature atmosphere furnace of the utility model has the advantages that
1, test scope is wide.This test device using simple controllable control climate cabinet by pressure gauge, atmosphere three-way valve,
Gas flowmeter composition is wanted by adjusting pressure, gas flow and other selections, special atmosphere needed for can satisfy sample
(vacuum/air/argon/helium) is asked, chemically react sample will not under high temperature environment, object occurs so as to cause sample
Qualitative change or moieties variation, avoid the test error caused due to atmospheric factors.
2, test temperature is accurate.1700 DEG C of temperature upper limit, measuring accuracy reaches ± 1 DEG C, and central fovea is arranged below sample stage
Hole, temperature thermocouple, which is arranged in the central pit hole, to be put in inside sample stage, can both make sample stage furnace chamber just
The positioning of center flat-temperature zone, and closer to sample, avoid due to thermocouple and sample distance it is remote caused by test temperature error.
3, it is high precisely that data are obtained.Using the background light source by power-supply controller of electric brightness-adjustable, meet different sample tests
Demand avoids the measurement error that temperature gradient generates the disturbance of full spectrum light line in high temperature lower chamber.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the test device of the utility model high-temp solid material at high temperature contact angle
Appended drawing reference: storage cylinder 1 (air, nitrogen, argon gas or helium are available), vacuum pump 2, control climate cabinet 3,
Air inlet 4, exhaust outlet 5, high-temperature corundum boiler tube 6, Si-Mo rod 7, sample stage 8, thermocouple 9, sample 10, high speed camera 11, background
Light source 12, light source controller 13, computer 14.
Specific embodiment
The utility model is further elaborated below with reference to embodiment and attached drawing:
First referring to Fig. 1, Fig. 1 is the structural representation of the test device of the utility model high-temp solid material at high temperature contact angle
Figure, as seen from the figure, the test device of the utility model high-temp solid material at high temperature contact angle, including atmosphere control system, high temperature
Melting appartus, optical system and computer 14, the atmosphere control system are storage cylinder 1, vacuum pump 2 and atmosphere control cabinet 3, institute
The high temperature melting device stated includes air inlet 4, exhaust outlet 5, high-temperature corundum pipe furnace 6, Si-Mo rod 7, sample stage 8, thermocouple 9, institute
The Si-Mo rod 7 stated is wound around 6 periphery of high-temperature corundum pipe furnace, passes through sealing at the both ends of the high-temperature corundum pipe furnace 6
Set up air inlet 4 and exhaust outlet 5, the other end separately up and down in one end of component and refractory metal flange seal, the high-temperature corundum pipe furnace 6
Center be arranged observation window (not shown), the sample stage 8 is placed in the center flat-temperature zone of high-temperature corundum pipe furnace 6, described
The lower surface center of sample stage 8 dig a circular groove upwards, the thermocouple 9 passes through 6 wall of high-temperature corundum pipe furnace and is inserted into
In the circular groove, sample 10 is placed on the sample stage 8；Using stainless steel tube by the storage cylinder 1, atmosphere control
Cabinet 3 processed is connected with the sealing of air inlet 4, and the vacuum pump 2 is connected with the sealing of exhaust outlet 5 with atmosphere triple valve；The light
System includes high speed camera 11, background light source 12 and light source controller 13, and the high speed camera 11 is placed in the high temperature
Outside the observation window of alundum furnace 6, the sample 10, observation window and the high speed camera 11 are co-located in the high-temperature corundum
On the central axes of pipe furnace 6；The background light source 12 is below the high speed camera 11, the background light source 12 and institute
The light source controller 13 stated is connected, and the output end of the high speed camera 11 is connected with the input terminal of the computer 14, institute
The output end for the thermocouple 9 stated is connected with the input terminal of the computer 14, an output end of the computer 14 with
The control terminal of the electric control gear of the Si-Mo rod 7 is connected, and the high speed camera 11 is 6.5 times of high speed phases continuously amplified
Machine, maximum speed are 2000 photos/second, data acquisition speed: 5G data/second；The observation window uses sapphire material
It is made, the control climate cabinet is made of pressure gauge, atmosphere three-way valve, gas flowmeter.
The storage cylinder 1 includes air bottle, nitrogen cylinder, argon bottle, helium tank, the gas of the high-temperature corundum pipe furnace 6
Atmosphere selects control by the control climate cabinet 3.
Using the test device of above-mentioned high-temp solid material at high temperature contact angle to the high temperature contact angle of high-temp solid material
Measurement method, it is characterised in that: this method includes the following steps:
1) sample 10 is placed on the sample stage 8, the high-temperature corundum pipe furnace 6 is closed, according to be measured
Sample material situation, furnace chamber are interior by repeatedly vacuumizing-atmosphere cleaning, atmosphere test condition needed for reselection sample: air pressure
1.0 × 10-3-1.1×105Pa, inert atmosphere/vacuum/atmosphere, so that sample 10 will not be because of test wrapper during the test
It interferes and bring test error in border；
2) hot conditions needed for the high-temperature corundum pipe furnace 6 described in is heated to sample to be tested 10, pass through the heat close to sample 10
Galvanic couple 9 measures temperature, and the heating of the Si-Mo rod 7 is controlled by computer 14, avoid due to thermocouple with it is to be measured
Test error caused by the temperature difference that distance generates between sample；
3) high speed camera 11 described in simultaneously opens background light source 12, acquires the contour images data of 10 high-resolution of sample in real time
And input the computer 14；
4) computer 14 described in stores the data, carries out image procossing in the prior art, obtains under high temperature
The contact angle of sample 10.
Embodiment
Wavelength is used in this example as the ultra-blue-light of 470nm, avoids in high temperature lower chamber temperature gradient to full spectrum light
The measurement error that line disturbance generates；High speed camera 11 can be obtained with 6.5 times of continuous amplifications, 2000 photos of maximum speed/s, data
Take speed: 5G data/second；The storage of computer 14 or in real time analysis, provide a variety of automatic Matching Methods, and can automatically determine adherency
Function, baseline adjust the methods of automatic, manual, horizontal, curved surface.
Sample 10 is placed on sample stage 8 by the atmosphere control system, and sample 10, observation window (are not marked in figure
Out) and high speed camera 11 is in same level, to obtain high image quality degradation；Observation window, thermocouple 9 and high-temperature corundum pipe
Using the metal flange sealing fastening for meeting DN 40ISO KF standard at furnace 6, so that high-temperature electric resistance furnace cavity is in a seal shape
State；Using vacuum pump 2 (mechanical pump and molecular pump or diffusion pump, secondary vacuum system do not mark in figure) at room temperature from exhaust
5 pumping high vacuums of mouth make high-temperature electric resistance furnace cavity reach one by storage cylinder 1 further according to material particularity in 4 air inlet of air inlet
Atmospheric condition needed for sample 10.
In process control temperature-rise period, temperature change is measured using the thermocouple 9 for being close to sample 10；Computer and high speed
Camera is connected, and can observe sample melted dynamic process in real time；It selects industrial cold light source as background light source, avoids under high temperature
The measurement error that cavity inner temperature gradient generates the disturbance of full spectrum light line；After sample melting, high speed camera 11 can be obtained clearly
Image, the variation that entire sample profile image occurs can be with captured in real-time (2000 photos of maximum speed/s), and are stored in meter
In calculation machine 14；Image procossing calculating is carried out according to resulting clear contour images starting software, a variety of automatic Fittings are provided
Method, and can automatically adjust, obtain the contact angle and fusing sample of the solids such as metal under high temperature, alloy, ceramics, clinker.
Experiment shows that the utility model has measuring accuracy height, test to the measurement of high-temp solid material at high temperature contact angle
The feature that range is wide, high degree of automation and test repeatability are good.
The content of the utility model is not limited to cited by embodiment, and those of ordinary skill in the art are practical new by reading this
Type specification and to any equivalent transformation that technical solutions of the utility model are taken, be the claim institute of the utility model
Cover.
Claims (2)
1. a kind of test device of high-temp solid material at high temperature contact angle, which is characterized in that the device include atmosphere control system,
High temperature melting device, optical system and computer (14), the atmosphere control system are storage cylinder (1), vacuum pump (2) and atmosphere
Control cabinet (3), the high temperature melting device include air inlet (4), exhaust outlet (5), high-temperature corundum pipe furnace (6), Si-Mo rod
(7), sample stage (8), thermocouple (9), the Si-Mo rod (7) is wound around high-temperature corundum pipe furnace (6) periphery, described
High-temperature corundum pipe furnace (6) both ends by seal assembly and refractory metal flange seal, the one of the high-temperature corundum pipe furnace (6)
End sets up air inlet (4) and exhaust outlet (5) separately up and down, and observation window is arranged in the center of the other end, and the sample stage (8) is placed in corundum
The center flat-temperature zone of pipe furnace (6), the lower surface center of the sample stage (8) dig a circular groove, the heat upwards
Galvanic couple (9) is by the way that in high-temperature corundum pipe furnace (6) the wall insertion circular groove, sample (10) is placed in the sample stage (8)
On；The storage cylinder (1), control climate cabinet (3) are connected with air inlet (4) sealing using stainless steel tube, with atmosphere threeway
The vacuum pump (2) is connected by valve with exhaust outlet (5) sealing；The optical system includes high speed camera (11), bias light
Source (12) and light source controller (13), the high speed camera (11) is placed in outside the observation window of the alundum furnace (6), described
Sample (10), observation window and the high speed camera (11) be co-located on the central axes of the alundum furnace (6)；Described
Background light source (12) is below the high speed camera (11), the background light source (12) and the light source controller
(13) it is connected, the output end of the high speed camera (11) is connected with the input terminal of the computer (14), the thermoelectricity
The output end of even (9) is connected with the input terminal of the computer (14), an output end of the computer (14) and institute
The control terminal of the electric control gear for the Si-Mo rod (7) stated is connected, and the high speed camera (11) is 6.5 times of high speed phases continuously amplified
Machine, maximum speed are 2000 photos/second, data acquisition speed: 5G data/second；The observation window uses sapphire material
It is made, the control climate cabinet (3) is made of pressure gauge, atmosphere three-way valve, gas flowmeter.
2. the test device of high-temp solid material at high temperature contact angle according to claim 1, it is characterised in that the storage
Gas cylinder (1) includes air bottle, nitrogen cylinder, argon bottle, helium tank, and the atmosphere of the high-temperature corundum pipe furnace (6) is by the gas
Atmosphere control cabinet (3) selection control.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109443251A (en) * | 2018-12-18 | 2019-03-08 | 上海大恒光学精密机械有限公司 | The test device and measurement method of high-temp solid material at high temperature contact angle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109443251A (en) * | 2018-12-18 | 2019-03-08 | 上海大恒光学精密机械有限公司 | The test device and measurement method of high-temp solid material at high temperature contact angle |
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