CN201429579Y - Glass transition temperature measuring device - Google Patents
Glass transition temperature measuring device Download PDFInfo
- Publication number
- CN201429579Y CN201429579Y CN2009200337594U CN200920033759U CN201429579Y CN 201429579 Y CN201429579 Y CN 201429579Y CN 2009200337594 U CN2009200337594 U CN 2009200337594U CN 200920033759 U CN200920033759 U CN 200920033759U CN 201429579 Y CN201429579 Y CN 201429579Y
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Abstract
The utility model discloses a glass transition temperature measuring device, which comprises a heating furnace, a measuring circuit and a temperature control device. The measuring circuit is connectedwith a sample to be tested. The glass transition temperature measuring device is characterized in that the furnace is filled with insulation material and heating platinum gold wires, the inner wall of the furnace is made of heat-resistant ceramic material, the platinum gold wires are uniformly wound on the outer wall of the heat-resistant ceramic material, the middle part of a furnace shell is provided with a temperature controlling thermocouple hole, and a temperature controlling thermocouple arranged in the temperature controlling thermocouple hole is connected with a temperature controllerarranged on the outer side of the furnace shell. The utility model adopts the temperature-current curve drawn with the readings of the temperature controller and the readings of the current of the measuring circuit to accurately and directly reflect the transition temperature ranges of various glass samples to be tested. The utility model has the advantages of low cost, easy operation, direct andaccurate measurement and the like. The measurement range of the utility model is from the room temperature to 1350 DEG C, the optimal measurement range is from 300 DEG C to 1000 DEG C, and the rate of temperature rise is 1 to 10 DEG C per minute.
Description
Technical field
The utility model relates to the temperature measuring apparatus of chemical industry and electronics industry detection range, relates in particular to a kind of glass transformation temperature determinator.
Background technology
Glass transformation temperature is special temperature range in the glass temperature lifting process, in this is interval glass many performances---viscosity, surface tension, elastic modulus, expansion coefficient, specific heat capacity, thermal conductivity, conductivity all occur and the mutually unusual phenomenon of other temperature range.Therefore, by measuring the electric conductivity of glass, and then the transition temperature of definite glass is a kind of measuring method very effectively and intuitively.Scientific research personnel and producers that the mensuration in glass transformation temperature interval can be these performances of research situation of change in the transition temperature interval provide convenience.
Before this, determine each temperature reference point of glassware usually by linear expansion coefficient, deadweight elongation method and the differential thermal analysis (DTA) methods such as (DTA) of measuring glass.It is narrower to adopt the linear expansion coefficient of measuring goods to measure temperature range, generally below 300 ℃, does not reach transition temperature (Tg) interval of glass usually; Deadweight elongation method only can be measured the softening temperature point of glass, and to the sample requirement strictness, the experimental implementation time is long, the reading result is rough, operating process requires high; The measurement range of differential thermal analysis (DTA) has covered the transition temperature point and the softening temperature point of glass, but need just can judge the transition temperature interval of glass in conjunction with a large amount of professional knowledge because of its image processing process, and data result is not directly perceived.About can be directly perceived, determine that fast and accurately the correlative study of the transition temperature of glass does not appear in the newspapers both at home and abroad.
Summary of the invention
The purpose of this utility model is to provide a kind of determinator of simple in structure, easy to operate, glass transformation temperature that measurement result is accurate and visual.
To achieve these goals, the technical solution adopted in the utility model is: comprise heating furnace and measure the loop, in heating furnace, be disposed with insulation material and heat resisting ceramic materials, evenly be wound with platinum wire in the heat resisting ceramic materials outside, have the temperature-control heat couple hole of running through insulation material and heat resisting ceramic materials in the middle of the heating furnace, temperature-control heat couple is equipped with temperature-control heat couple in the hole, temperature-control heat couple is connected with temperature controller, measure the loop and comprise the crucible that is arranged in the heating furnace, be inserted with plain conductor in the crucible, plain conductor passes on the outer loop that forms of heating furnace and is disposed with direct supply, circuit switching S and digital amp gauge.
Also be provided with protective resistance and bulb between circuit switching S of the present utility model and the digital amp gauge; The heating furnace end that passes at plain conductor also is respectively arranged with fire resistive material; Plain conductor is fixed in the crucible by crucible cover.
The utility model is by the reading of temperature controller and measure the transition temperature interval that temperature-current curve that the reading of loop current draws to reflect accurately, intuitively various glass specimens to be measured.It is low that this device has a cost, operates simple and easyly, measures characteristics such as directly perceived, accurate.Measurement range of the present utility model is by room temperature to 1350 ℃, 300 ℃～1000 ℃ of optimum measurement scopes, and heating rate is 1～10 ℃/min.
Description of drawings
Fig. 1 is an one-piece construction synoptic diagram of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail.
Referring to Fig. 1, the utility model comprises heating furnace 4 and measures the loop, in heating furnace 4 insulation material 5 and heat resisting ceramic materials 6, evenly be wound with platinum wire 7 in heat resisting ceramic materials 6 outsides, have the temperature-control heat couple hole 3 of running through insulation material 5 and heat resisting ceramic materials 6 in the middle of the heating furnace 4, temperature-control heat couple 2 is housed in the temperature-control heat couple hole 3, and temperature-control heat couple 2 is connected with temperature controller 1.Measure the loop and comprise that the volume that is arranged in the heating furnace 4 is the crucible 8 of 10ml; be inserted with plain conductor 9 in the crucible 8; plain conductor 9 is fixed in the crucible by crucible cover 15, and plain conductor 9 passes on the heating furnace 4 outer loops that form and is disposed with direct supply 13, circuit switching S, protective resistance 12, bulb 13 and digital amp gauge 10.Heating furnace 4 ends that pass at plain conductor 9 also are respectively arranged with fire resistive material 14.
Testing procedure is as follows:
1) at first glass dust 16 to be measured is packed in the crucible 8, lead 9 is vertically inserted on both sides, and the distance between lead is by crucible cover 15 controls.
2) crucible 8 is put in the heating furnace 4, winding is measured the loop and is guaranteed to connect correct, selected suitable amp gauge work range, guarantees that experiment measuring is all within range ability.
3) closure is measured circuit switching S, opens the switch of temperature controller 1, begins heating, heats up with constant heating rate.Heating rate and maximum temperature are by temperature controller 1 control, record amp gauge electric current this moment and temperature simultaneously.
4) temperature writes down the primary current reading every 2 ℃.Note observing the variation of miniature bulb brightness simultaneously, when miniature bulb brightness changes suddenly, change into, when the reometer reading does not change, stop reading, open circuit switching S, and powered-down stops heating every 1 ℃ of record one secondary data.
5) being horizontal ordinate to measure temperature, is that ordinate is drawn temperature-current curve with the electric current of amp gauge.On temperature-current curve, find out electric current and change two flex points that raise suddenly and tend towards stability with temperature, the transition temperature T that last flex point corresponding temperature is a glass to be measured
g, back one flex point is the softening temperature T of glass to be measured
fT
g～T
fThe interval is the transition temperature interval of the glass of surveying.
Measurement range of the present utility model is by room temperature to 1350 ℃, 300 ℃～1000 ℃ of optimum measurement scopes, and heating rate is 1～10 ℃/min.
The utility model is controlled heating-up temperature and heating rate by temperature controller, the selection of the range that when connecting the measurement loop, will care for appearances, and whether the connection of binding post is correct.The resistance of measuring in the loop plays the protection ammeter, and miniature bulb intuitively reflects the obvious degree that electric current changes.In test process, select suitable crucible according to the heat penetration of glass.In measuring process, sample to be tested is put under the thermopair, guarantee thermometric accuracy, the data synchronization that will keep record all the time simultaneously promptly will be in the current data of record amp gauge, the data of synchronous record temperature this moment.When the electric current of amp gauge is constant in a period of time after heating current reaches maximal value, end of test (EOT), powered-down stops heating.Be horizontal ordinate then with the probe temperature, the electric current of amp gauge is that ordinate is drawn temperature-current curve, determines the transition temperature interval of glass specimen to be measured.
Claims (4)
1, a kind of glass temperature changes determinator, it is characterized in that: comprise heating furnace (4) and measure the loop, in heating furnace (4), be disposed with insulation material (5) and heat resisting ceramic materials (6), evenly be wound with platinum wire (7) in heat resisting ceramic materials (6) outside, have the temperature-control heat couple hole (3) of running through insulation material (5) and heat resisting ceramic materials (6) in the middle of the heating furnace (4), temperature-control heat couple (2) is housed in the temperature-control heat couple hole (3), temperature-control heat couple (2) is connected with temperature controller (1), measure the loop and comprise the crucible (8) that is arranged in the heating furnace (4), be inserted with plain conductor (9) in the crucible (8), plain conductor (9) passes on the outer loop that forms of heating furnace (4) and is disposed with direct supply (13), circuit switching (S) and digital amp gauge (10).
2, glass temperature according to claim 1 changes determinator, it is characterized in that: also be provided with protective resistance (12) and bulb (13) between said circuit switching (S) and the digital amp gauge (10).
3, glass temperature according to claim 1 changes determinator, it is characterized in that: said heating furnace (4) end that passes at plain conductor (9) also is respectively arranged with fire resistive material (14).
4, glass temperature according to claim 1 changes determinator, and it is characterized in that: said plain conductor (9) is fixed in the crucible by crucible cover (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200337594U CN201429579Y (en) | 2009-07-01 | 2009-07-01 | Glass transition temperature measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200337594U CN201429579Y (en) | 2009-07-01 | 2009-07-01 | Glass transition temperature measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201429579Y true CN201429579Y (en) | 2010-03-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200337594U Expired - Fee Related CN201429579Y (en) | 2009-07-01 | 2009-07-01 | Glass transition temperature measuring device |
Country Status (1)
| Country | Link |
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| CN (1) | CN201429579Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106404821A (en) * | 2016-10-31 | 2017-02-15 | 华南理工大学 | Electrothermal coupling processing system for characterizing phase transformtaion behavior of material |
| CN106706700A (en) * | 2016-11-11 | 2017-05-24 | 四川天策聚材科技有限公司 | Online monitoring system and method for phase change-resistance relation of conductive polymer composite material |
| CN107703176A (en) * | 2017-10-30 | 2018-02-16 | 上海凯历迪新材料科技股份有限公司 | A kind of high polymer thermal deformation performance measurement instrument |
| CN108007959A (en) * | 2017-08-09 | 2018-05-08 | 安徽工业大学 | A kind of method based on Iron Ore Powder temperature-electric signal curve detection assimilation temperature |
| CN109283212A (en) * | 2018-11-29 | 2019-01-29 | 安徽工业大学 | A kind of detection method of Iron Ore Powder anabolic reaction temperature and anabolic reaction speed |
| CN113791110A (en) * | 2021-09-15 | 2021-12-14 | 苏州热工研究院有限公司 | Device and method for measuring glass transition temperature of blade of wind generating set |
-
2009
- 2009-07-01 CN CN2009200337594U patent/CN201429579Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106404821A (en) * | 2016-10-31 | 2017-02-15 | 华南理工大学 | Electrothermal coupling processing system for characterizing phase transformtaion behavior of material |
| CN106404821B (en) * | 2016-10-31 | 2023-05-23 | 华南理工大学 | Electrical-thermal coupling processing system for phase change behavior sign of material |
| CN106706700A (en) * | 2016-11-11 | 2017-05-24 | 四川天策聚材科技有限公司 | Online monitoring system and method for phase change-resistance relation of conductive polymer composite material |
| CN108007959A (en) * | 2017-08-09 | 2018-05-08 | 安徽工业大学 | A kind of method based on Iron Ore Powder temperature-electric signal curve detection assimilation temperature |
| CN108007959B (en) * | 2017-08-09 | 2021-02-05 | 安徽工业大学 | Method for detecting assimilation temperature based on iron ore powder temperature-electric signal curve |
| CN107703176A (en) * | 2017-10-30 | 2018-02-16 | 上海凯历迪新材料科技股份有限公司 | A kind of high polymer thermal deformation performance measurement instrument |
| CN109283212A (en) * | 2018-11-29 | 2019-01-29 | 安徽工业大学 | A kind of detection method of Iron Ore Powder anabolic reaction temperature and anabolic reaction speed |
| CN109283212B (en) * | 2018-11-29 | 2022-03-29 | 安徽工业大学 | Method for detecting assimilation reaction temperature and assimilation reaction speed of iron ore powder |
| CN113791110A (en) * | 2021-09-15 | 2021-12-14 | 苏州热工研究院有限公司 | Device and method for measuring glass transition temperature of blade of wind generating set |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100324 Termination date: 20100701 |