CN106442228A - Device for measuring surface tension by using high-temperature melt maximum bubble method - Google Patents
Device for measuring surface tension by using high-temperature melt maximum bubble method Download PDFInfo
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- CN106442228A CN106442228A CN201610655866.5A CN201610655866A CN106442228A CN 106442228 A CN106442228 A CN 106442228A CN 201610655866 A CN201610655866 A CN 201610655866A CN 106442228 A CN106442228 A CN 106442228A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N13/00—Investigating surface or boundary effects, e.g. wetting power; Investigating diffusion effects; Analysing materials by determining surface, boundary, or diffusion effects
- G01N13/02—Investigating surface tension of liquids
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N13/00—Investigating surface or boundary effects, e.g. wetting power; Investigating diffusion effects; Analysing materials by determining surface, boundary, or diffusion effects
- G01N13/02—Investigating surface tension of liquids
- G01N2013/0225—Investigating surface tension of liquids of liquid metals or solder
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N13/00—Investigating surface or boundary effects, e.g. wetting power; Investigating diffusion effects; Analysing materials by determining surface, boundary, or diffusion effects
- G01N13/02—Investigating surface tension of liquids
- G01N2013/0241—Investigating surface tension of liquids bubble, pendant drop, sessile drop methods
- G01N2013/0266—Bubble methods
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Abstract
The invention provides a device for measuring surface tension by using a high-temperature melt maximum bubble method. The device comprises a gas delivery and control system, a heating furnace, a lifting system, an atmosphere control system, a temperature control system and a control system. The gas delivery and control system is used for controlling delivery of the produced bubble gases and acquiring the maximum pressure data; the heating furnace is used for providing a data extraction environment; the lifting system is used for controlling the gas delivery and control as well as a relative position of a measuring object in the heating furnace; the atmosphere control system is used for guaranteeing a reaction atmosphere of the heating furnace; the temperature control system is used for guaranteeing a reaction temperature in the heating furnace; a control display system is used for processing the measured data to calculate the surface tension of high-temperature melt and displaying the tension. According to the device, the surface tension of the high-temperature melt can be rapidly and accurately measured under high temperature rise rate and accurate temperature control.
Description
Technical field
The invention belongs to a kind of measurement apparatus, be specifically related to one maximum bubble method measurement high-temperature fusant physical property table
Surface tension device.
Background technology
The surface tension of high-temperature fusant is a kind of very important parameter of high-temperature fusant, be affect heterogeneous system mass transfer and
One of key factor of reaction.And for metallurgical slag, particularly high titanium slag, by measuring its surface tension, to foamed
Reason and control have important directive significance.
The measuring method of measurement surface tension of high-temperature melt mainly has maximum bubble method, hollow cylinder method and sessile drop method at present
Deng wherein hollow cylinder method device is the simplest, but cannot meet the requirement in certainty of measurement.Maximum bubble method by Simon in
Within 1851, propose, after by Canter, Jaeger is developed from theoretical and practical standpoint respectively.The basic step of experiment is, will
Insert inside testing liquid with capillary, in pipe, be slowly introducing inert gas, with being blown into the increase of gas pressure, bubble by
Gradually grow up, but when bubble is precisely hemisphere, the pressure in bubble reaches maximum, now by measurement pressure in bubbles, calculate
Surface tension to liquid.But, current measurement apparatus generally exists and cannot meet certainty of measurement and high temperature cannot be measured
The shortcomings such as the surface tension of melt.
Content of the invention
For existing the problems referred to above, it is an object of the invention to provide one can measure high temperature for solving the problems referred to above
Smelt surface tension, and the measurement apparatus that certainty of measurement is high.
For achieving the above object, the present invention adopts the following technical scheme that：A kind of high-temperature fusant maximum bubble method is surveyed surface and is opened
The device of power, including gas conveying and control system, heating furnace, jacking system, atmosphere control system, temperature control system and control
Display system processed；
Gas conveying and control system：Including the first inert gas storage bottle, the first pressure-reducing valve, digital differential manometer, hair
Tubule erecting device and capillary；
The upper end of described capillary is fixed by capillary erecting device, it is ensured that capillary is in vertical state；
The gas outlet of described first inert gas storage bottle is connected with the upper end of capillary by tracheae, described first decompression
Valve and digital differential manometer are separately positioned on tracheae, and wherein the first pressure-reducing valve is positioned at the first inert gas storage bottle gas outlet
Side；
Heating furnace：Including the furnace chamber in boiler tube, boiler tube besieged city and be positioned at outer and for heat to furnace chamber the silicon molybdenum of furnace chamber and heat
Body；
The bottom of described capillary enters furnace chamber by inserting boiler tube；
Jacking system：Including elevating lever, grating scale, grating scale fixed mount, linking arm and elevating lever actuator；
The right-hand member of described linking arm is fixed on the top of elevating lever, and described capillary erecting device is fixed on a left side for linking arm
End；
Described grating scale is for detecting the displacement that linking arm moves up and down, and it includes data acquisition portion and can be in data acquisition
The sliding part slidably reciprocating in portion, described sliding part is fixing with the right-hand member of linking arm to be connected, and described data acquisition portion is fixed on light
The top of grid chi fixed mount；
Described elevating lever actuator is used for driving lifter rod lifting；
Atmosphere control system：Including the second inert gas storage bottle, the second pressure-reducing valve and wireway；
One end of described wireway connects with the gas outlet of the second inert gas storage bottle, the furnace chamber of the other end and heating furnace
Connection；
Described second pressure-reducing valve is arranged on wireway；
Temperature control system：Including thermocouple and temperature-controlling cabinet；
The test side of described thermocouple arranges in the furnace chamber of heating furnace, for measuring solution to be measured in the furnace chamber of heating furnace
Temperature, the data output end of thermocouple is connected with temperature-controlling cabinet data input pin, and measured temperature signal is inputted temperature-controlling cabinet, temperature-controlling cabinet
Heating-up temperature according to the temperature signal control silicon molybdenum calandria receiving；
Control display system：Including controller and display device；
The described signal output part of digital differential manometer is connected with the signal input part of controller, the displacement control of controller
Signal output part processed is connected with elevating lever actuator, the displacement signal input of the signal output part of described grating scale and controller
Connecting, the temperature signal output of temperature-controlling cabinet is connected with the temperature signal input of controller, the temperature control signals of temperature-controlling cabinet
Input is connected with the temperature control signals output of controller；
Described controller is according to the surface tension of melt to be measured in receipt signal calculating heating stove furnace chamber；
The display signal output part of described controller is connected with the display signal input part of display device.
As optimization, the conveying of described gas and control system also include flowmeter；
Described flowmeter is arranged on tracheae, and is positioned between the first pressure-reducing valve and digital differential manometer.
As optimization, the conveying of described gas and control system also include voltage stabilizing meter；
Described voltage stabilizing meter is arranged on tracheae, and is positioned between flowmeter and digital differential manometer.
As optimization, the conveying of described gas and control system also include needle valve；
Described needle valve is arranged on tracheae, and is positioned between voltage stabilizing meter and digital differential manometer.
As optimization, the conveying of described gas and control system also include deoxidation drying bottle；
Described deoxidation drying bottle is arranged on tracheae, and is positioned between needle valve and digital differential manometer.
As optimization, described controller calculates the capillary formula of solution to be measured and is：
σ=(P-ρgh)r/2 (2)；
Wherein, σ is the surface tension of melt to be measured, and P is maximum pressure, and r is the radius of capillary, and ρ is melt to be measured
Density, h is the degree of depth that capillary inserts melt to be measured.
As optimization, described flowmeter uses glass tube suspended body flowmeter.
As optimization, described voltage stabilizing is calculated as fiberglass air container.
As optimization, it is SYT2000J that described digital differential manometer uses model, and measurement scope is 0-2000Pa, precision
0.1Pa.
As optimization, described capillary uses metal tantalum pipe, pipe interior diameter 1.00mm.
Relative to prior art, the invention have the advantages that：
1st, use silicon molybdenum calandria, maximum operating temperature up toWork long hours temperatureBy peace
The thermocouple of dress different accuracy can meet follow-on test specimen temperature scopeThe furnace temperature in rapid 3h that heats up reachesUse the PID temperature-controlling system newly entering, temperature-controlled precision
2nd, digital pressure difference meter measurement bubble maximum differential pressure, pressure measurement range 0～2000Pa, differential manometer precision are used
0.1Pa, uses digital grating scale for capillary port position control, control accuracy ± 0.001mm；Digital differential manometer
Avoid artificial error in reading with grating scale, reproducible, effectively raise the certainty of measurement of equipment.
3rd, detect the method for high-temperature fusant physical property and possess that simple to operate, data are reliable, measurement process can real-time inspection and control,
The measurement for surface tension of high-temperature melt that can be relatively broad and research.
Brief description
Fig. 1 is the structural representation that high-temperature fusant maximum bubble method of the present invention surveys capillary device.
Reference in Fig. 1：First inert gas storage bottle 1, the first pressure-reducing valve 2, flowmeter 3, voltage stabilizing meter 4, needle-like
Valve 5, deoxidation drying bottle 6, digital differential manometer 7, capillary erecting device 8, capillary 9, heating furnace 10, elevating lever 11, grating
Chi 12, elevating lever actuator 13, the second inert gas storage bottle 14, the second pressure-reducing valve 15, wireway 16, thermocouple 17, temperature control
Cabinet 18, controls display system 19.
Detailed description of the invention
In describing the invention, it is to be understood that term " on ", D score, "left", "right" " vertically ", " level ",
" push up ", " end ", the orientation of the instruction such as " interior " or position relationship for based on orientation shown in the drawings or position relationship, merely to just
Describe in describing the present invention and simplifying, rather than instruction or the hint device of indication or element must have specific orientation, with
Specific azimuth configuration and operation, be therefore not considered as limiting the invention.
Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or
Implicitly include one or more this feature.
A kind of high-temperature fusant maximum bubble method surveys capillary device, including gas conveying and control system, heating furnace,
Jacking system, atmosphere control system, temperature control system and control system；
Gas conveying and control system：Including the first inert gas storage bottle the 1st, the first pressure-reducing valve the 2nd, digital differential manometer is the 7th,
Capillary erecting device 8 and capillary 9；
The gas outlet of described first inert gas storage bottle 1 is connected with capillary 9 by tracheae, described first pressure-reducing valve 2
Being separately positioned on tracheae with digital differential manometer 7, wherein the first pressure-reducing valve 2 is positioned at the first inert gas storage bottle 1 gas outlet
Side；The upper end of described capillary 9 is fixed by capillary erecting device 8, it is ensured that capillary 9 is in vertical state；
When being embodied as, the built-in inert gas of the first inert gas storage bottle 1 is argon gas, and purity of argon is more than
99.9%.The argon gas that is primarily due to selecting argon gas is easily purified technical maturity, and low price can meet measurement needs.Other argon
Gas can protect heater as inert gas, also can guarantee that metal will not be oxidized when measuring metal bath.
As optimization, gas conveying and control system also include flowmeter the 3rd, voltage stabilizing meter the 4th, needle valve 5 and deoxidation drying bottle
6；Described flowmeter 3 is arranged on tracheae, and is positioned between the first pressure-reducing valve 2 and digital differential manometer 7；Described voltage stabilizing meter 4 sets
Putting on tracheae, and being positioned between flowmeter 3 and digital differential manometer 7, described voltage stabilizing meter 4 is fiberglass air container；Described
Needle valve 5 is arranged on tracheae, and is positioned between voltage stabilizing meter 4 and digital differential manometer 7；Described deoxidation drying bottle 6 is arranged on gas
Guan Shang, and be positioned between needle valve 5 and digital differential manometer 7.
Flowmeter 1-3 uses glass tube suspended body flowmeter, and it is arranged primarily to conveniently check gas flow in tracheae,
Needle valve 1-5 is for the argon gas in convenient regulation accurately and control tracheae, improves accuracy of detection, because when measurement
Need to ensure that gas is that interruption is emerged and speed is advisable at about 2 seconds 1 bubble from melt.
Voltage stabilizing meter 1-4 is fiberglass air container, and its setting has been mainly a cushioning effect, stablizes further in tracheae
Pressure, it is to avoid because equipment is had a negative impact by increasing suddenly of pressure；
Needle valve 1-5 is arranged primarily to be more accurately controlled the flow velocity of gas in tracheae；
Deoxidation drying bottle 1-6 is used for carrying out deoxidation and drying to the argon gas in tracheae built with deoxidation and dehydrating agent, improves
The applicability of device and accuracy, it is ensured that touch the purity of the gas of melt or slag, reduce to melt particularly metal
The oxidation of liquid and the error brought；
It is SYT2000J that described digital differential manometer 1-7 uses model, and measurement scope is 0-2000Pa, precision 0.1Pa.Root
Can be calculated, according to the surface tension of high-temperature fusant always, the pressure differential that maximum bubble method records and be less than 2000Pa, and the order of magnitude
At 1000Pa, therefore the range of 0-2000Pa can meet the measurement of most smelt surface tension, and additionally precision 0.1Pa more can be protected
The accuracy of card result；
When being embodied as, capillary 1-10 uses metal tantalum pipe, and for oxide melt such as blast furnace slag, electroslag, it becomes
Divide and will not react with metal tantalum and fusing point height, therefore metal tantalum can meet measurement and require.Capillary 1-10 pipe interior diameter
1.00mm, is determined to make by the fundamental property of surveyed melt.
When being embodied as, described tracheae having multiple screwed hole for installing device, the first pressure-reducing valve 2 flowmeter is the 3rd,
The mode that voltage stabilizing meter 4 and needle valve 5 are threaded connection respectively is arranged on tracheae；
Connecting for convenience, the air inlet of deoxidation drying bottle 6 uses rubber tube to be connected with needle valve 5, digital differential manometer
7th, deoxidation drying bottle 6 and capillary 9 pass through three-way pipe, and first mouth of pipe of three-way pipe connects with the gas outlet of deoxidation drying bottle 6,
Second mouth of pipe of three-way pipe connects with the test side of digital differential manometer 7, the 3rd mouth of pipe of three-way pipeline and capillary 9
Upper end connects.
Heating furnace 10：Including the furnace chamber in boiler tube, boiler tube besieged city and be positioned at that furnace chamber is outer and the silicon molybdenum for heating to furnace chamber adds
Hot body；The bottom of described capillary 9 enters furnace chamber by inserting boiler tube；
Described when being embodied as heating furnace can be silicon molybdenum stove, the high-temperature device general for this area, as long as meeting survey
Parameter Conditions needed for smelt surface tension for the amount, there is no particular/special requirement.
Jacking system：Including elevating lever the 11st, grating scale the 12nd, grating scale fixed mount, linking arm and elevating lever actuator 13；
Described elevating lever 11 and grating scale fixed mount are vertically arranged, and the bottom of elevating lever 11 and grating scale fixed mount is respectively
It is fixed on the shell of elevating lever actuator 13；
The right-hand member of described linking arm is fixed on the top of elevating lever 11, and described capillary erecting device 8 is fixed on linking arm
Left end；
Described grating scale 12 includes data acquisition portion and the sliding part that can slidably reciprocate in data acquisition portion, described cunning
Dynamic portion is fixing with the right-hand member of linking arm to be connected, and described data acquisition portion is fixed on the top of grating scale fixed mount；Grating scale 12 is used
In the displacement that detection elevating lever 11 moves up and down, grating scale 12 maximum range 520mm, precision is 0.001mm, for accurate control
Capillary and the distance of melt liquid level.
Described elevating lever actuator 13 is used for driving elevating lever 11 to lift..
Elevating lever actuator 13 drives elevating lever 11 to lift, and elevating lever 11 drives the linking arm lifting being secured to connect,
Thus be fixed on the capillary 9 of linking arm left end and the sliding part of grating scale 12 and lift also with linking arm, the number of grating scale 12
According to collection portion by gathering the displacement of sliding part lifting, determine the displacement that elevating lever 11 lifts, thus finally determine 9 liters of capillary
The displacement of fall.
Atmosphere control system：Including the second inert gas storage bottle the 14th, the second pressure-reducing valve 15 and wireway 16；
One end of described wireway 16 connects with the gas outlet of the second inert gas storage bottle 14, the other end and heating furnace
Furnace chamber connects；Described second pressure-reducing valve 15 is arranged on wireway 16；
When being embodied as, the mode that the second pressure-reducing valve 15 is threaded connection is arranged on wireway 16, is subtracted by second
Atmosphere in break-make control heating furnace 10 stove of pressure valve 15.
Temperature control system：Including thermocouple 17 and temperature-controlling cabinet 18；
The test side of described thermocouple 17 arranges in the furnace chamber of heating furnace, for measuring solution to be measured in the furnace chamber of heating furnace
Temperature, the data output end of thermocouple 17 is connected with temperature-controlling cabinet eighteen data input；
Measured temperature signal is inputted temperature-controlling cabinet 18 by thermocouple 17, and temperature-controlling cabinet 18 adds according to the temperature signal control receiving
Hot stove 10 is passed through the size of current of silicon molybdenum calandria, thus realizes the control to heating furnace 10 furnace chamber temperature, by institute's thermometric
Degree signal input temperature-controlling cabinet 18, temperature-controlling cabinet 18 is according to the heating-up temperature of the temperature signal control silicon molybdenum calandria receiving；Temperature control
Cabinet belongs to prior art, and it falls within prior art by the heating-up temperature of thermocouple measured temperature signal control heating, does not belongs to
In the inventive point of the present invention, PID controller when being embodied as, can be used.
Control display system 19：Including controller and display device；
The described signal output part of digital differential manometer 7 is connected with the signal input part of controller, the displacement control of controller
Signal output part processed is connected with elevating lever actuator 13, the signal output part of described grating scale 12 and the displacement signal of controller
Input connects, and the temperature signal output of temperature-controlling cabinet 18 is connected with the temperature signal input of controller, the temperature of temperature-controlling cabinet 18
Degree control signal input is connected with the temperature control signals output of controller；
Controller realizes lifting elevating lever 11 the accurate control of displacement by controlling elevating lever actuator 13, thus realizes
Lift the accurate control of displacement to capillary 9.
Described controller is according to the surface tension of melt to be measured in receipt signal calculating heating furnace 10 furnace chamber；
The display signal output part of described controller is connected with the display signal input part of display device, and display device is used for
The pressure reduction that displacement that in the furnace chamber of display temperature-controlling cabinet 18 transmission, the temperature of solution, elevating lever 11 move, digital differential manometer 7 record
And the solution surface tension that controller calculates.
Described controller calculates the capillary formula of solution to be measured：
Maximum bubble method principle formula is formula (1)；
Derive further and i.e. can obtain calculating the capillary formula of solution (2)：
σ=(P-ρgh)r/2 (2)；
Wherein, σ is the surface tension of melt to be measured, and P is maximum pressure, and r is the radius of capillary, and ρ is melt to be measured
Density, h is the degree of depth that capillary 9 inserts melt to be measured.
Above-mentioned high-temperature fusant maximum bubble method is applied to survey the concrete steps of capillary measurement device smelt surface tension
As follows：
Following lifted blast furnace slag is melt slag, but can be completely used for other melt slags：
S1：Heating furnace uses silicon molybdenum heating furnace, puts into crucible in the furnace chamber of silicon molybdenum stove, and silicon molybdenum calandria uses Si-Mo rod,
Using Si-Mo rod to heat the slag in crucible, until slag melting, being incubated 2 hours makes slag composition uniform；
S2：Starting jacking system, elevating lever actuator 13 drives elevating lever 11 to move, and makes to correct position under capillary 9
In crucible above slag surface, and do not contact with slag surface, now the differential manometer of digital differential manometer 7 is returned to zero；Lifting
Bar actuator 13 drives elevating lever 11 to move, and makes the lower end of capillary 9 drop to just contact with slag surface, now controls
Device control elevating lever actuator 13 drives elevating lever 11 to move, and makes the initial position of elevating lever 11 make zero；
S3：Open the first pressure-reducing valve 2, control argon gas flow by the first pressure-reducing valve 2 and needle valve, now digital
There is numerical value in differential manometer 7, can stablize inside slag, slowly produce bubble when, the numerical value of digital differential manometer 7 by little to
Big change, elevating lever actuator 13 drives elevating lever 11 to move, thus drives capillary 9 to move, and changes the insertion stove of capillary 9
The degree of depth of slag, obtains the maximum differential pressure under each degree of depth, and the degree of depth that capillary 9 inserts slag is designated as h respectively1, h2, h3, capillary
Under each degree of depth of 9 insertion slags, corresponding maximum differential pressure is designated as P respectively1, P2, P3；
S4：According to formula, use P1, P2And h1, h2ρ can be calculatedgValue, i.e.：P2-P1=ρg(h2-h1), further according to P3
And h3And calculated ρgSubstitute into formula (2) and just can get the surface tension of slag.
S5：After test completes, rising treated as capillary 9, closing temperature elevation system, body of heater to be heated cleans body of heater after being cooled to room temperature
Cleaning equipment.
The arrangement achieves the purpose of quick measurement, and precision and automaticity are high, can well meet experiment
Room and industrial measurement require.
It should be noted last that, above example is only in order to illustrating technical scheme and unrestricted, although ginseng
According to preferred embodiment, the present invention is described in detail, it will be understood by those within the art that, can be to the present invention
Technical scheme modify or equivalent, without deviating from the spirit and scope of technical solution of the present invention, it all should be covered
In the middle of scope of the presently claimed invention.
Claims (10)
1. a high-temperature fusant maximum bubble method surveys capillary device, it is characterised in that：Including gas conveying and control system
System, heating furnace, jacking system, atmosphere control system, temperature control system and control display system；
Gas conveying and control system：Including the first inert gas storage bottle (1), the first pressure-reducing valve (2), digital differential manometer
(7), capillary erecting device (8) and capillary (9)；
The upper end of described capillary (9) is fixed by capillary erecting device (8), it is ensured that capillary (9) is in vertical state；
The gas outlet of described first inert gas storage bottle (1) is connected with the upper end of capillary (9) by tracheae, and described first subtracts
Pressure valve (2) and digital differential manometer (7) are separately positioned on tracheae, and wherein the first pressure-reducing valve (2) is positioned at the first inert gas storage
Deposit bottle (1) air outlet side；
Heating furnace (10)：Including the furnace chamber in boiler tube, boiler tube besieged city and be positioned at outer and for heat to furnace chamber the silicon molybdenum of furnace chamber and heat
Body；
The bottom of described capillary (9) enters furnace chamber by inserting boiler tube；
Jacking system：Including elevating lever (11), grating scale (12), grating scale fixed mount, linking arm and elevating lever actuator (13)；
The right-hand member of described linking arm is fixed on the top of elevating lever (11), and described capillary erecting device (8) is fixed on linking arm
Left end；
Described grating scale (12) is for detecting the displacement that linking arm moves up and down, and it includes data acquisition portion and can be in data acquisition
The sliding part slidably reciprocating in portion, described sliding part is fixing with the right-hand member of linking arm to be connected, and described data acquisition portion is fixed on light
The top of grid chi fixed mount；
Described elevating lever actuator (13) is used for driving elevating lever (11) to lift；
Atmosphere control system：Including the second inert gas storage bottle (14), the second pressure-reducing valve (15) and wireway (16)；
One end of described wireway (16) connects with the gas outlet of the second inert gas storage bottle (14), the other end and heating furnace
Furnace chamber connects；
Described second pressure-reducing valve (15) is arranged on wireway (16)；
Temperature control system：Including thermocouple (17) and temperature-controlling cabinet (18)；
The test side of described thermocouple (17) arranges in the furnace chamber of heating furnace, for measuring solution to be measured in the furnace chamber of heating furnace
Temperature, the data output end of thermocouple (17) is connected with temperature-controlling cabinet (18) data input pin, and measured temperature signal is inputted temperature control
Cabinet (18), temperature-controlling cabinet (18) is according to the heating-up temperature of the temperature signal control silicon molybdenum calandria receiving；
Control display system (19)：Including controller and display device；
The signal output part of described digital differential manometer (7) is connected with the signal input part of controller, the Bit andits control of controller
Signal output part is connected with elevating lever actuator (13), the signal output part of described grating scale (12) and the displacement signal of controller
Input connects, and the temperature signal output of temperature-controlling cabinet (18) is connected with the temperature signal input of controller, temperature-controlling cabinet (18)
Temperature control signals input be connected with the temperature control signals output of controller；
Described controller is according to the surface tension of melt to be measured in receipt signal calculating heating furnace (10) furnace chamber；
The display signal output part of described controller is connected with the display signal input part of display device.
2. high-temperature fusant maximum bubble method as claimed in claim 1 surveys capillary device, it is characterised in that：Described gas
Conveying and control system also include flowmeter (3)；
Described flowmeter (3) is arranged on tracheae, and is positioned between the first pressure-reducing valve (2) and digital differential manometer (7).
3. high-temperature fusant maximum bubble method as claimed in claim 2 surveys capillary device, it is characterised in that：Described gas
Conveying and control system also include voltage stabilizing meter (4)；
Described voltage stabilizing meter (4) is arranged on tracheae, and is positioned between flowmeter (3) and digital differential manometer (7).
4. high-temperature fusant maximum bubble method as claimed in claim 3 surveys capillary device, it is characterised in that：Described gas
Conveying and control system also include needle valve (5)；
Described needle valve (5) is arranged on tracheae, and is positioned between voltage stabilizing meter (4) and digital differential manometer (7).
5. high-temperature fusant maximum bubble method as claimed in claim 4 surveys capillary device, it is characterised in that：Described gas
Conveying and control system also include deoxidation drying bottle (6)；
Described deoxidation drying bottle (6) is arranged on tracheae, and is positioned between needle valve (5) and digital differential manometer (7).
6. the high-temperature fusant maximum bubble method as described in any one of claim 1-5 surveys capillary device, it is characterised in that：
Described controller calculates the capillary formula of solution to be measured：
σ=(P-ρgh)r/2 (2)；
Wherein, σ is the surface tension of melt to be measured, and P is maximum pressure, and r is the radius of capillary, and ρ is the density of melt to be measured,
H is the degree of depth that capillary (9) inserts melt to be measured.
7. high-temperature fusant maximum bubble method as claimed in claim 6 surveys capillary device, it is characterised in that：Described flow
Meter (3) uses glass tube suspended body flowmeter.
8. high-temperature fusant maximum bubble method as claimed in claim 2 surveys capillary device, it is characterised in that：Described voltage stabilizing
Meter (4) is fiberglass air container.
9. high-temperature fusant maximum bubble method as claimed in claim 6 surveys capillary device, it is characterised in that：Described numeral
It is SYT2000J that formula differential manometer (7) uses model, and measurement scope is 0-2000Pa, precision 0.1Pa.
10. high-temperature fusant maximum bubble method as claimed in claim 1 surveys capillary device, it is characterised in that：Described hair
Tubule (9) uses metal tantalum pipe, pipe interior diameter 1.00mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610655866.5A CN106442228A (en) | 2016-08-11 | 2016-08-11 | Device for measuring surface tension by using high-temperature melt maximum bubble method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610655866.5A CN106442228A (en) | 2016-08-11 | 2016-08-11 | Device for measuring surface tension by using high-temperature melt maximum bubble method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106442228A true CN106442228A (en) | 2017-02-22 |
Family
ID=58184477
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610655866.5A Pending CN106442228A (en) | 2016-08-11 | 2016-08-11 | Device for measuring surface tension by using high-temperature melt maximum bubble method |
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| CN (1) | CN106442228A (en) |
Cited By (3)
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