CN207516286U - A kind of heat distortion temperature test device of high temperature plastics - Google Patents
A kind of heat distortion temperature test device of high temperature plastics Download PDFInfo
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- CN207516286U CN207516286U CN201721613452.2U CN201721613452U CN207516286U CN 207516286 U CN207516286 U CN 207516286U CN 201721613452 U CN201721613452 U CN 201721613452U CN 207516286 U CN207516286 U CN 207516286U
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Abstract
The utility model discloses a kind of heat distortion temperature test device of high temperature plastics, the experiment bucket including sealing, described test in bucket is transversely provided with ventilative distribution grid close to bottom position, and experiment bucket is divided into heating zone and gas chamber；Filled with heat conduction powder in the heating zone, the left and right sides that the experiment bucket inner wall is located at heating zone sets heating tube respectively；Partition board is longitudinally equipped in the gas chamber, gas chamber is divided into left gas chamber and right gas chamber, left gas chamber and right gas chamber bottom are respectively equipped with left gas circuit entrance and right gas circuit entrance；Test bracket is provided in the heating zone, place sample in the test bracket bottom, inside experiment bucket, sequentially connected displacement sensor, counterweight and compression bar are equipped at the top of test bracket, compression bar is pressed in the centre position of sample, displacement sensor and counterweight are located at outside experiment bucket, and the solid conductive heat powders flowing purification of heating is carried out heat conduction by test device disclosed in the utility model using air-flow, can realize and novel fire resistant heat deformations temperature is accurately tested.
Description
Technical field
The utility model is related to one kind to belong to high molecular material thermal performance test field, more particularly to a kind of high temperature plastics
Heat distortion temperature test device.
Background technology
Ruckbildung can occur when heated for plastic material, and heat distortion temperature is exactly to express the heated and deformation of measured object
Between relationship parameter, be weigh plastic material heat resistance quality a kind of measurement.During actual experiment, by trying material
Sample applies certain load, is heated up with certain speed, and corresponding temperature, is exactly thermal deformation temperature when reaching regulation deformation
Degree.
For sample is made to realize the rising of temperature at the uniform velocity during the test, the mode of conduction oil is commonly used, will try
Sample is positioned over together with testing jig in oil groove, gradually rises oil temperature by the heating tube in oil groove, and in the process using stirring
Mixing device makes oil generate flowing, ensures the uniform of each position oil temperature.But such mode, because of conduction oil during test experiments
Volatilization accelerate, oil vapour amount increase, the health of experimental situation and experimenter can all be had an impact.And due to leading
The limitation of deep fat heat resistance, test temperature is no more than 300 DEG C.
And as market new material more and more occurs, for heat distortion temperature at 400 DEG C or so, such mode can not
Test applied to such novel plastic material.It is empty using heat now with part for high-temperature material except such conduction oil mode
Gas mode of heating, but the characteristics of air heats is based on, air circulation is unstable, and due to the hot spoke of heating tube during air heating
Inevitable influence is penetrated, leads to the temperature uniformity for being difficult to reach similar conduction oil mode, therefore test data fluctuation is big, number
It is difficult to ensure that according to accuracy.
Utility model content
In order to solve the above technical problems, the utility model provides a kind of heat distortion temperature test device of high temperature plastics,
Use air-flow that the solid conductive heat powders flowing purification of heating is carried out heat conduction to reach, so as to fulfill to novel fire resistant heat deformations
The purpose that temperature is accurately tested.
In order to achieve the above objectives, the technical solution of the utility model is as follows：
A kind of heat distortion temperature test device of high temperature plastics, the experiment bucket including sealing are described to test in bucket the bottom of close to
Ventilative distribution grid is transversely provided at portion position, experiment bucket is divided into heating zone and gas chamber；Conductive powder is filled in the heating zone
Material, the left and right sides that the experiment bucket inner wall is located at heating zone set heating tube respectively；Partition board is longitudinally equipped in the gas chamber, it will
Gas chamber is divided into left gas chamber and right gas chamber, and left gas chamber and right gas chamber bottom are respectively equipped with left gas circuit entrance and right gas circuit entrance；It is described
Test bracket is provided in heating zone, sample is placed in the test bracket bottom, inside experiment bucket, is set at the top of test bracket
There are sequentially connected displacement sensor, counterweight and compression bar, compression bar is pressed in the centre position of sample, and displacement sensor and counterweight are located at
It tests outside bucket.
In said program, two support devices are symmetrical arranged between the sample and the pedestal of test bracket.
In said program, institute's displacement sensors are installed on the top of test bracket by sensor stand, and pass through company
Bar is connect with counterweight.
Through the above technical solutions, the heat distortion temperature test device of high temperature plastics provided by the utility model passes through left gas
Road entrance and right gas circuit entrance are passed through compressed air, air-flow enter into and through gas chamber pressure stablize after, by distribution grid of breathing freely,
Uniform pressure distribution on plate is formed, test heat conduction powder in bucket under the action of air-flow, can be floated by air-flow, in experiment bucket
Form the superposed layer of powder.By the continuous heating of heat conduction powder and flowing heat conduction, sleeve mechanism is made to generate similar liquids heat conduction
Effect, and because the heat resistance of heat conduction powder will be more than 500 DEG C or more, significantly larger than common conduction oil, and through examination
Verify temperature uniformity more preferably.In this way by this device, it can realize that the exact test of the heat distortion temperature of high-temperature material is surveyed
Examination.
Description of the drawings
It in order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described.
Fig. 1 is a kind of heat distortion temperature test device schematic diagram of high temperature plastics disclosed in the utility model embodiment；
Fig. 2 is the test bracket structure diagram disclosed in the utility model embodiment.
In figure, 1, experiment bucket；2nd, heating tube；3rd, ventilative distribution grid；4th, left gas circuit entrance；5th, right gas circuit entrance；6th, partition board；
7th, connecting rod；8th, heat conduction powder；9th, test bracket；10th, support device；11st, sample；12nd, compression bar；13rd, counterweight；14th, displacement sensing
Device；15th, sensor stand；16th, left gas chamber；17th, right gas chamber.
Specific embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describe.
The utility model provides a kind of heat distortion temperature test device of high temperature plastics, as shown in Figure 1, the device uses
The solid conductive heat powders flowing purification of heating is carried out heat conduction by air-flow, accurate so as to fulfill being carried out to novel fire resistant heat deformations temperature
Really test.
As shown in Figure 1, a kind of heat distortion temperature test device of high temperature plastics, the experiment bucket 1 including sealing test bucket 1
Interior close bottom position is transversely provided with ventilative distribution grid 3, and experiment bucket 1 is divided into heating zone and gas chamber；It is filled in heating zone
Heat conduction powder 8, heat conduction powder 8 are typically about 50 micron grain size aluminium oxide high-purity powders, and experiment 1 inner wall of bucket is located at heating zone
The left and right sides sets heating tube 2 respectively.
Test bracket 9 is provided in heating zone, as shown in Fig. 2, sample 11 is placed in 9 bottom of test bracket, positioned at experiment bucket 1
Inside, 9 top of test bracket are equipped with sequentially connected displacement sensor 14, counterweight 13 and compression bar 12, and compression bar 12 is pressed in sample
Centre position, displacement sensor 14 and counterweight 13 are located at outside experiment bucket 1.It is symmetrically set between the pedestal of sample 11 and test bracket 9
Put two support devices 10.Displacement sensor 14 is installed on the top of test bracket 9 by sensor stand 15, and passes through connecting rod
7 connect with counterweight 13.
Partition board 6 is longitudinally equipped in gas chamber, gas chamber is divided into left gas chamber 16 and right gas chamber 17,17 bottom of left gas chamber 16 and right gas chamber
Portion is respectively equipped with left gas circuit entrance 4 and right gas circuit entrance 5.
In experimentation, first by being passed through in left gas circuit entrance 4 and right gas circuit entrance 5 to the left gas chamber 16 and right gas chamber 17
The compressed air of accurate adjustment pressure after air-flow enters into and through the pressure stabilization of gas chamber, passes through distribution grid 3 of breathing freely, forms plate
Upper uniform pressure distribution.Heat conduction powder 8 is floated under the action of air-flow by air-flow in experiment bucket 1, and powder is formed in experiment bucket 1
The superposed layer of material.Simultaneously in actual mechanical process, control left and right gas chamber gas pressure keeps small pressure differential, this pressure differential
The different heat conduction powder 8 that can make in experiment bucket 1 generates stable flowing.In this way, the continuous heating and flowing by heat conduction powder 8 are led
Heat, make sleeve mechanism generate similar liquids heat conduction effect, and because heat conduction powder 8 heat resistance will be more than 500 DEG C with
On, significantly larger than common conduction oil, and experiment proves that temperature uniformity more preferably.In this way by this device, height can be realized
The exact test test of the heat distortion temperature of adiabator.
During the test by test bracket 9 shown in Fig. 2, it is put into experiment bucket 1, carries out experiment test.Wherein, it is testing
9 bottom of stent is equipped with the support device 10 of support sample 11, and totally two support devices 10 are at 11 both ends of sample.Compression bar 12 is pressed in
11 centre position of sample provides the pressure of standard by counterweight 13.During the test, sample 11, which can be heated, to soften, and press
Under power effect, compression bar 12 can move down, and displacement is measured simultaneously by the displacement sensor 14 being mounted on sensor stand 15
Display when displacement variation reaches specified value, records temperature, experiment terminates.
The foregoing description of the disclosed embodiments enables professional and technical personnel in the field to realize or new using this practicality
Type.A variety of modifications of these embodiments will be apparent for those skilled in the art, determine herein
The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause
This, the utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The most wide range consistent with features of novelty.
Claims (3)
1. a kind of heat distortion temperature test device of high temperature plastics, the experiment bucket including sealing, which is characterized in that the experiment bucket
Interior close bottom position is transversely provided with ventilative distribution grid, and experiment bucket is divided into heating zone and gas chamber；It is filled in the heating zone
There is heat conduction powder, the left and right sides that the experiment bucket inner wall is located at heating zone sets heating tube respectively；It is longitudinally set in the gas chamber
There is partition board, gas chamber is divided into left gas chamber and right gas chamber, left gas chamber and right gas chamber bottom are respectively equipped with left gas circuit entrance and right gas circuit
Entrance；Test bracket is provided in the heating zone, sample is placed in the test bracket bottom, inside experiment bucket, test
Cradle top is equipped with sequentially connected displacement sensor, counterweight and compression bar, and compression bar is pressed in the centre position of sample, displacement sensor
It is located at outside experiment bucket with counterweight.
A kind of 2. heat distortion temperature test device of high temperature plastics according to claim 1, which is characterized in that the sample
Two support devices are symmetrical arranged between the pedestal of test bracket.
A kind of 3. heat distortion temperature test device of high temperature plastics according to claim 1, which is characterized in that the displacement
Sensor is installed on the top of test bracket by sensor stand, and is connect by connecting rod with counterweight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721613452.2U CN207516286U (en) | 2017-11-28 | 2017-11-28 | A kind of heat distortion temperature test device of high temperature plastics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721613452.2U CN207516286U (en) | 2017-11-28 | 2017-11-28 | A kind of heat distortion temperature test device of high temperature plastics |
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| Publication Number | Publication Date |
|---|---|
| CN207516286U true CN207516286U (en) | 2018-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721613452.2U Active CN207516286U (en) | 2017-11-28 | 2017-11-28 | A kind of heat distortion temperature test device of high temperature plastics |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114199925A (en) * | 2021-11-19 | 2022-03-18 | 国网江苏省电力有限公司盐城供电分公司 | Test module of distribution network cable protection pipe on-site Vicat softening temperature measuring device |
-
2017
- 2017-11-28 CN CN201721613452.2U patent/CN207516286U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114199925A (en) * | 2021-11-19 | 2022-03-18 | 国网江苏省电力有限公司盐城供电分公司 | Test module of distribution network cable protection pipe on-site Vicat softening temperature measuring device |
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