CN206656978U - A kind of material bullet heat performance testing device - Google Patents
A kind of material bullet heat performance testing device Download PDFInfo
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- CN206656978U CN206656978U CN201720324761.1U CN201720324761U CN206656978U CN 206656978 U CN206656978 U CN 206656978U CN 201720324761 U CN201720324761 U CN 201720324761U CN 206656978 U CN206656978 U CN 206656978U
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Abstract
The utility model discloses a kind of material bullet heat performance testing device, including：Vacuum dewar container, sample, which is placed in the vacuum dewar container and insulation is carried out to sample, reduces leakage heat；Temperature-controlling system, for controlling the temperature in the vacuum dewar container, required environment temperature is provided for sample；Mechanics machine, during material bullet thermal performance test is carried out, load and unloaded loads are provided for sample；Data input and the program control system of collection, the system inputs test parameters by program to the mechanics machine, and gathers the test data of thermometer at mechanics machine sensor and sample；And extensometer, for measuring the strain of sample.Test device of the present utility model can realize the deformation such as stretching under any strain of material, bending；And it can realize that the bullet hot property in 4.2K 573K warm areas under any environment temperature measures；Environment temperature controllable precise is adjustable simultaneously, can accurately measure temperature change when material is undergone phase transition.
Description
Technical field
It the utility model is related to shape-memory material bullet fuel factor technical field of measurement and test.It is available more particularly, to one kind
The test device of shape-memory material bullet hot property under arbitrary temp environment in 4.2K-573K warm areas.
Background technology
There is shape to some materials (especially alloy material, such as the alloy such as Ni-Ti, Cu-Al-Mn, Cu-Zn-Al)
The advantages that memory characteristic is good, metal fatigue-resistance characteristics are strong, metal strength is high.When carrying out loading force to material, material can be caused
Material interior tissue is undergone phase transition, i.e. martensite transfor mation.Because phase transformation can make material produce phase transition temperature, that is, temperature change occurs.
Because material has strong shape memory characteristic, when to material unloading force, the material after phase transformation returns to original lattice again
State, also there occurs phase transformation, material generation phase transition temperature for this process.Generally material is being stretched or bent
During loading force, material temperature rise, when to material unloading force, material temperature declines." heat is referred to as to this temperature change phenomenon
Elastic martensite transformation temperature ".
Marmem be grow up in the phenomenon and theoretical foundation of conventional martensitic phase transformation it is a kind of new
Functional material, because the material can produce some special performance, particularly SME, high-dampings in phase transition process
Property and super-elasticity, have been widely applied to the fields such as medical treatment, space flight, textile industry, household electrical appliance, electronics, the energy and machinery
In.With the extensive use of marmem, at present, it is studied it is also more and more deep, but at present only in room temperature bar
The easy device of the bullet hot property under material bending deformation is measured under part, shape can be measured within the scope of big temperature without a kind of
The device of the bullet hot property of any strain of shape memory alloys.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of can arbitrarily strain in test material under various temperature
Play the device of hot property.
In order to solve the above technical problems, the utility model uses following technical proposals：
A kind of test device of material bullet hot property, including：
Vacuum dewar container, sample, which is placed in the vacuum dewar container and insulation is carried out to sample, reduces leakage heat；
Temperature-controlling system, for controlling the temperature in the vacuum dewar container, required environment temperature is provided for sample；
Mechanics machine, during material bullet thermal performance test is carried out, load and unloaded loads are provided for sample；
Data input and the program control system of collection, the system input experiment ginseng by program to the mechanics machine
Number, and gather the test data of thermometer at mechanics machine sensor and sample；
And extensometer, for measuring the strain of sample.
Preferably, the temperature-controlling system includes temperature controller and heater, and the temperature controller and heater are shut out to vacuum
The internal environment of watt container is heated up.
Preferably, the parameter that the data input and the program control system of collection input to mechanics machine includes：Examination
The strain size of test needed for sample, the velocity of displacement in displacement process, reach needed for strain after the guarantor of displacement carry the time, unload
During sample displacement speed, unload final goal power size, target try hard to keep load time and test cycle number.
The beneficial effects of the utility model are as follows：
Test device of the present utility model can realize the deformation such as stretching under any strain of material, bending；And it can realize
Bullet hot property measurement under low temperature (minimum liquid helium four .2K), room temperature, high temperature (300 degrees Celsius of highest) under any environment temperature；Ring
Border temperature controllable precise is adjustable.Temperature when can accurately measure material (4.2K-573K) being undergone phase transition at ambient temperature becomes
Change.
Brief description of the drawings
Specific embodiment of the present utility model is described in further detail below in conjunction with the accompanying drawings.
Fig. 1 shows structural representation of the present utility model.
Embodiment
In order to illustrate more clearly of the utility model, the utility model is done into one with reference to preferred embodiments and drawings
The explanation of step.Similar part is indicated with identical reference in accompanying drawing.It will be appreciated by those skilled in the art that below
Specifically described content is illustrative and be not restrictive, and should not limit the scope of protection of the utility model with this.
As shown in figure 1, a kind of material bullet heat performance testing device, including：Mechanics machine 1, vacuum dewar container 2, add
Hot device 3, thermometer 4, extensometer 5, temperature controller 6 and data input and capture program control system 7.Mechanics machine 1 is provided with
Fixture 9, sensor 10 and stretch rod 11, one end of stretch rod 11 are connected with fixture 9, and the other end is fixed on power by sensor 10
Learn on testing machine 1.Sample 8 is arranged on fixture 9, and extensometer 5 and thermometer 4 are arranged on sample 8, is respectively intended to collection examination
The strain of sample 8 and temperature, and the data collected are transferred to data input and capture program control system 7.Vacuum dewar holds
Device 2 is arranged on the ring flange of mechanics machine 1, and heater 3 is arranged on the inside of vacuum dewar container 2, and temperature controller 6 is by adding
Hot device 3 heats up to vacuum dewar container 2, and vacuum dewar container 2 is that sample 8 and its environment are incubated.
Mechanics machine 1 applies tensile force to sample 8 in the present embodiment, and bullet heat during elongation strain occurs for test sample 8
Performance.In other implementation columns, mechanics machine 1 can apply any strain such as stretching, compression, bending or torsion to sample 8,
Device of the present utility model can test sample 8 arbitrarily strain under bullet hot property.
The experiment flow of test device of the present utility model comprises the steps：
(1) sample 8 is arranged on the fixture 9 of mechanics machine 1, and by the extensometer 5 and temperature of the suitable gauge length of sample 8
Meter 4 is arranged on sample 8.
(2) vacuum dewar container 2 is arranged on the ring flange of mechanics machine 1, is that sample and its environment are incubated.
(3) after the heating, vacuum Dewar type container 2 of heater 3 reaches the temperature needed for sample, by the diameter of sample, thickness,
The series of parameters such as width, regulation Non-proportional extension rate, regulation breaking elongation, original gauge length, extensometer gage length are input to data
In input and capture program control system 7.Simultaneously also by drawing process, the strain size of test, sample are drawn needed for sample
The velocity of displacement stretched, reach needed for strain after the guarantor of sample displacement carry the speed of sample displacement in time, uninstall process, unloading
Size, the target of final goal power try hard to keep the time of load and test cycle number also enters into data input and capture program control
In system 7.
(4) start to stretch sample 8, data input and capture program control system 7 gather sensor 10 with extending
The temperature that power, stress and strain and the thermometer 4 that meter 5 is born the sample 8 measured measure.
At the trial, during loading load to sample 8, mechanics machine 1 is that the strain of the sample needed for is carried out
Set, and by straining the load come control mechanics testing machine for sample loading.Because sample 8 is due to material or internal group
Structure difference is knitted, in the case where reaching identical strain, the load that mechanics machine 1 loads can be different.Because sample 8 strains
During can produce displacement, in settable experiment loading procedure the speed of change in displacement and after straining needed for reaching displacement protect what is carried
Time.Sample has the phenomenon of temperature rise in loading procedure, after waiting sample to return to environment temperature, to the load being carried on sample
Unloaded, testing machine when being velocity of displacement and the unloading completion by setting sample in uninstall process is carried on sample
Minimum force (target force) is come what is completed.Sample has temperature drop phenomenon in uninstall process, after the completion of unloading, try hard to keep one section of load when
Between, after waiting sample to return to environment temperature, carry out the bullet thermal performance test of next circulation of the sample.
In the present embodiment, because the temperature needed for experiment is more than room temperature, so temperature controller 6 is shut out by heater 3 to vacuum
Watt internal environment of container 2 is heated up, so that it may reaches required test temperature.Test device of the present utility model can be up to
573K test temperature.Heater 3 is adding thermal resistance, heating plate or heating tape.When carrying out the experiment of 4.2K or 77k temperature,
Liquid helium or liquid nitrogen are injected into vacuum dewar container 2, immersion sample 8 tests required temperature to reach.When test temperature will
When asking in 4.2K-77K or 77K- room temperature warm areas, first pass through with liquid helium or Liquid nitrogen precooler vacuum dewar container, then pass through temperature control
Instrument 6 and heater 3 are the heating of the internal environment of vacuum dewar container 2, finally by the temperature control of temperature controller 6 to reach required experiment temperature
Degree.Heater can be adding thermal resistance, heating plate or heating tape.
Obviously, above-described embodiment of the present utility model is only intended to clearly illustrate the utility model example, and
It is not the restriction to embodiment of the present utility model, for those of ordinary skill in the field, in described above
On the basis of can also make other changes in different forms, all embodiments can not be exhaustive here,
It is every to belong to obvious changes or variations that the technical solution of the utility model is extended out still in of the present utility model
The row of protection domain.
Claims (3)
- A kind of 1. material bullet heat performance testing device, it is characterised in that including：Vacuum dewar container, sample, which is placed in the vacuum dewar container and insulation is carried out to sample, reduces leakage heat；Temperature-controlling system, for controlling the temperature in the vacuum dewar container, required environment temperature is provided for sample；Mechanics machine, during material bullet thermal performance test is carried out, load and unloaded loads are provided for sample；Data input and the program control system of collection, the system input test parameters by program to the mechanics machine, And gather the test data of thermometer at mechanics machine sensor and sample；And extensometer, for measuring the strain of sample.
- 2. test device according to claim 1, it is characterised in that the temperature-controlling system includes temperature controller and heating fills Put, the temperature controller and heater heat up to the internal environment of vacuum dewar container.
- 3. test device according to claim 1, it is characterised in that the data input and the program control system of collection The parameter inputted to mechanics machine includes：The required strain size tested of sample, the velocity of displacement in strain path, reach institute The guarantor of displacement after need to straining carries the speed of sample displacement in time, uninstall process, the size for unloading final goal power, target force Protect the time carried and test cycle number.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720324761.1U CN206656978U (en) | 2017-03-30 | 2017-03-30 | A kind of material bullet heat performance testing device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106802308A (en) * | 2017-03-30 | 2017-06-06 | 中国科学院理化技术研究所 | A kind of material bullet heat performance testing device |
| CN109187221A (en) * | 2018-09-30 | 2019-01-11 | 华南理工大学 | The test device and method of a kind of pair of high molecular material shape memory effect quantitative measurment |
| CN109976415A (en) * | 2017-12-27 | 2019-07-05 | 中国科学院长春光学精密机械与物理研究所 | A kind of temperature range control system of infrared optical system |
-
2017
- 2017-03-30 CN CN201720324761.1U patent/CN206656978U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106802308A (en) * | 2017-03-30 | 2017-06-06 | 中国科学院理化技术研究所 | A kind of material bullet heat performance testing device |
| CN109976415A (en) * | 2017-12-27 | 2019-07-05 | 中国科学院长春光学精密机械与物理研究所 | A kind of temperature range control system of infrared optical system |
| CN109187221A (en) * | 2018-09-30 | 2019-01-11 | 华南理工大学 | The test device and method of a kind of pair of high molecular material shape memory effect quantitative measurment |
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