CN106289999A - Metal material Mechanics Performance Testing equipment under the high temperature conditions and method of testing thereof - Google Patents
Metal material Mechanics Performance Testing equipment under the high temperature conditions and method of testing thereof Download PDFInfo
- Publication number
- CN106289999A CN106289999A CN201610615594.6A CN201610615594A CN106289999A CN 106289999 A CN106289999 A CN 106289999A CN 201610615594 A CN201610615594 A CN 201610615594A CN 106289999 A CN106289999 A CN 106289999A
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- China
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- test specimen
- test
- power supply
- control system
- metal material
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/18—Performing tests at high or low temperatures
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/022—Environment of the test
- G01N2203/0222—Temperature
- G01N2203/0226—High temperature; Heating means
Abstract
The invention discloses a kind of metal material Mechanics Performance Testing equipment under the high temperature conditions and method of testing thereof, belong to technical field of measurement and test, equipment includes testing machine, control system, also include connecting the power supply directly test specimen heated at test specimen two ends and being wrapped in insulating barrier and the thermal insulation layer of test specimen outer surface, method includes that the electrode column of test specimen and the two poles of the earth of a power supply are connected, and thermocouple is connected with control system, controls the change of test specimen temperature.The test specimen of metal material is directly connected by the present invention with power supply, test specimen is as the unique resistance in circuit, and its temperature will rise rapidly, and can arrange the temperature time curve of test specimen in the controls, its programming rate of heating furnace is faster relatively, in hgher efficiency, and it is easy to the layout of displacement transducer, owing to test specimen is conductive heater, therefore, not affecting surrounding, the environmental error measuring equipment will be the least, and its measurement result is the most relatively accurate.
Description
Technical field
The invention belongs to technical field of measurement and test, be specifically related to the Mechanics Performance Testing under the high temperature conditions of a kind of metal material
Equipment and method of testing thereof,
Background technology
For the test of metal material mechanical property under the high temperature conditions, prior art takes electric furnace directly to test specimen substantially
The mode of heating is carried out, and it exists following defect: for tension test, owing to the interlude of test specimen need to heat in heating furnace,
The two ends of exemplar need to stretch out heating furnace to grip, and thus result in the non-uniform temperature of test specimen, are embodied in two ends
Height low, middle, affects result of the test to a certain extent；For the measurement of deformation, prior art is substantially taked contact and non-connects
Touch two ways, for the former, owing to being always high temperature in stove, needs to be incorporated into outside electric furnace displacement to test, surveys
More or less there is measurement error in amount result；For the latter, then there is expense the highest, measure the problem that cost is the highest.But no matter
How, owing to test specimen itself exists the temperature difference, all there is the measurement of its mechanical performance index such as intensity and elastic modelling quantity can not be true
The real problem reflecting metal material physical characteristic.
Summary of the invention
In view of this, it is an object of the invention to provide the Mechanics Performance Testing under the high temperature conditions of a kind of metal material to set
Standby and method of testing, can make the constant temperature of test specimen keep uniform and stable, can reflect the physics of metal material accurately, truly
Characteristic, providing for the various Metal Materials At High Temperature mechanical characteristics of real grasp may.
An object of the present invention is achieved through the following technical solutions:
A kind of metal material quantitative measurement equipment under the high temperature conditions, including testing machine, also includes connecting test specimen
The power supply that test specimen is directly heated by two ends and be wrapped in insulating barrier and the thermal insulation layer of test specimen outer surface, described insulating barrier and every
It is correspondingly arranged on multiple perforate on thermosphere, in described perforate, is provided with thermoelectricity occasionally displacement transducer, also include that temperature controls system
System and data handling system, described temperature control system is connected with electrode column and thermocouple, described data handling system and temperature
Control system, displacement transducer and testing machine are connected.
The two of the purpose of the present invention are achieved through the following technical solutions:
Utilize the method for testing of above-mentioned metal material Mechanics Performance Testing equipment under the high temperature conditions, including following step
Rapid:
1) prepare test specimen, process electrode column respectively at test specimen two ends；
2) it is connected by the electrode column of test specimen and the two poles of the earth of a power supply；
3) layer insulating and one layer of thermal insulation layer are wrapped up at test specimen outer surface；
4) clamping test specimen: the upper and lower grips of testing machine fixes the two ends of test specimen；
5) thermocouple, displacement transducer are inserted in the perforate by being correspondingly arranged on insulating barrier and thermal insulation layer, and by thermocouple,
Power supply is connected with temperature control system；
6) starting power supply, the temperature of test specimen raises rapidly according to the heating curve set, and after reaching predetermined value, temperature controls
System sends instruction and keeps temperature constant, and firing test machine starts test；
7) result of the test is persistently sent to data handling system and processes and store by thermocouple, displacement transducer, when
When result of the test is undergone mutation, testing machine quits work, and test terminates.
The invention has the beneficial effects as follows:
The test specimen of metal material is directly connected by the present invention with power supply, test specimen as the unique resistance in circuit, its temperature
To rise rapidly, its programming rate of relative heating furnace is faster, in hgher efficiency, owing to test specimen is conductive heater, therefore, does not affects
Surrounding, the environmental error measuring equipment will be the least, and its measurement result is the most relatively accurate；Meanwhile, the change in resistance of test specimen is relatively
Little, its temperature is relatively uniform, and therefore, its measurement result, closer in the intrinsic propesties of metal material, can truly reflect metal material
The physical characteristic of material.
Other advantages, target and the feature of the present invention will be illustrated to a certain extent in the following description, and
And to a certain extent, will be apparent to those skilled in the art based on to investigating hereafter, or can
To be instructed from the practice of the present invention.The target of the present invention and other advantages can be realized by description below and
Obtain.
Accompanying drawing explanation
In order to make the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing the present invention made into
The detailed description of one step, wherein:
Fig. 1 is the layout drawing of the metal material invented Mechanics Performance Testing equipment under the high temperature conditions.
Detailed description of the invention
Hereinafter with reference to accompanying drawing, the preferred embodiments of the present invention are described in detail.Should be appreciated that preferred embodiment
Only for the explanation present invention rather than in order to limit the scope of the invention.
Fig. 1 is the layout drawing of the present invention, and metal material Mechanics Performance Testing equipment under the high temperature conditions, including testing machine
1, also include the electrode column 3 at connection test specimen 2 two ends, power supply 4 and the insulating barrier 5 and the thermal insulation layer 6 that are wrapped in test specimen 2 outer surface, absolutely
It is correspondingly arranged on multiple perforate 7 in edge layer 4 and thermal insulation layer 6, in perforate, is provided with displacement transducer 8 and thermocouple 9, the present embodiment
Thermocouple 9 take control system control, measurement error is the least, also includes temperature control system 10 and data handling system 11,
Temperature control system 10 is connected with electrode column 3 and thermocouple 9, is controlled the temperature of test process, makes test temperature control
In the range of needs, data handling system 11 and temperature control system 10 and displacement transducer 8 and testing machine 1 are connected, in real time
Gather test specimen stretching load, temperature value and the deformation with load, whole test process is controlled, make test automation,
Intelligent.
The method of testing of above-mentioned test equipment, comprises the following steps:
1) prepare test specimen, process electrode column respectively at test specimen two ends；
2) it is connected by the electrode column of test specimen and the two poles of the earth of a power supply；
3) layer insulating and one layer of thermal insulation layer are wrapped up at test specimen outer surface；
4) clamping test specimen: the upper and lower grips of testing machine fixes the two ends of test specimen；
5) thermocouple, displacement transducer are inserted in the perforate by being correspondingly arranged on insulating barrier and thermal insulation layer, and by thermocouple
Be connected with control system, displacement transducer is connected with data handling system；
6) starting power supply, the temperature of test specimen raises rapidly according to the heating curve set, and after reaching predetermined value, temperature controls
System sends instruction and keeps temperature constant, and firing test machine starts test；
7) result of the test is persistently sent to data handling system and carries out processing also by thermocouple, displacement transducer and testing machine
Storage, when result of the test is undergone mutation, testing machine quits work, and test terminates.
The test specimen of metal material is directly connected by the present embodiment with power supply, and test specimen is as the unique resistance in circuit, and it is warm
Degree will rise rapidly, and its programming rate of the mode of heating of relative heating furnace is faster, in hgher efficiency, owing to test specimen is conductive heater
, therefore, not affecting surrounding, the environmental error measuring equipment will be the least, i.e. the measurement result of thermocouple, displacement transducer
The most relatively accurate；Meanwhile, the change in resistance of test specimen is less, and its temperature is relatively uniform, and therefore, its measurement result is closer in metal
The intrinsic propesties of material, can truly reflect the physical characteristic of metal material.
Particularly, thermocouple, displacement transducer can be arranged on test specimen central region, and test specimen temperature is more consistent, and it is measured
Result is more accurate.
Finally illustrating, above example is only in order to illustrate technical scheme and unrestricted, although with reference to relatively
The present invention has been described in detail by good embodiment, it will be understood by those within the art that, can be to the skill of the present invention
Art scheme is modified or equivalent, and without deviating from objective and the scope of the technical program, it all should be contained in the present invention
Right in the middle of.
Claims (2)
1. metal material Mechanics Performance Testing equipment under the high temperature conditions, including testing machine, it is characterised in that: also include connecting
The power supply that test specimen is directly heated by test specimen two ends and the insulating barrier and the thermal insulation layer that are wrapped in test specimen outer surface, described insulating barrier
Be correspondingly arranged on multiple perforate on thermal insulation layer, be provided with thermoelectricity occasionally displacement transducer in described perforate, also include temperature control
System processed and data handling system, described temperature control system is connected with electrode column and thermocouple, described data handling system with
Temperature control system, displacement transducer and testing machine are connected.
2. utilizing the method for testing of the quantitative measurement equipment under the high temperature conditions of metal material described in claim 1, it is special
Levy and be: comprise the following steps:
1) prepare test specimen, process electrode column respectively at test specimen two ends；
2) it is connected by the electrode column of test specimen and the two poles of the earth of a power supply；
3) layer insulating and one layer of thermal insulation layer are wrapped up at test specimen outer surface；
4) clamping test specimen: the upper and lower grips of testing machine fixes the two ends of test specimen；
5) thermocouple, displacement transducer are inserted in the perforate by being correspondingly arranged on insulating barrier and thermal insulation layer, and by thermocouple, power supply
It is connected with temperature control system；
6) heating curve or the target temperature value of test specimen are set；
7) starting power supply, the temperature of test specimen raises rapidly according to the heating curve set, after reaching predetermined value, and temperature control system
Send instruction and keep test specimen temperature constant；
8) firing test machine, carries out tension test to test specimen；
9) result of the test is persistently sent to data handling system and processes and deposit by thermocouple, displacement transducer and testing machine
Storage,
When result of the test is undergone mutation, testing machine quits work, and test terminates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610615594.6A CN106289999A (en) | 2016-07-29 | 2016-07-29 | Metal material Mechanics Performance Testing equipment under the high temperature conditions and method of testing thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610615594.6A CN106289999A (en) | 2016-07-29 | 2016-07-29 | Metal material Mechanics Performance Testing equipment under the high temperature conditions and method of testing thereof |
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| CN106289999A true CN106289999A (en) | 2017-01-04 |
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| CN201610615594.6A Pending CN106289999A (en) | 2016-07-29 | 2016-07-29 | Metal material Mechanics Performance Testing equipment under the high temperature conditions and method of testing thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108387458A (en) * | 2018-05-04 | 2018-08-10 | 中国科学院苏州纳米技术与纳米仿生研究所 | Carbon nano-tube fibre mechanical property testing system at high operating temperatures and method |
| CN109357951A (en) * | 2018-10-26 | 2019-02-19 | 济南大学 | The method and device of material property extension test under a kind of low temperature |
| CN109752260A (en) * | 2019-03-06 | 2019-05-14 | 中国工程物理研究院材料研究所 | A kind of device for high temperature easy oxidation metal material tensile test |
| CN110441162A (en) * | 2019-07-31 | 2019-11-12 | 湖北航天技术研究院总体设计所 | Ablative material mechanical performance test macro and method based on time domain temperature |
| CN110658082A (en) * | 2019-10-17 | 2020-01-07 | 山东大学 | System and method for testing r value of high-temperature tensile anisotropy of metal plate |
| CN113820203A (en) * | 2021-10-13 | 2021-12-21 | 中国航发北京航空材料研究院 | Device and method for double-sided temperature difference tensile test |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2002082031A (en) * | 2000-09-05 | 2002-03-22 | Ishikawajima Harima Heavy Ind Co Ltd | Hopkinson bar testing apparatus |
| CN201828465U (en) * | 2010-11-23 | 2011-05-11 | 中国工程物理研究院总体工程研究所 | High-temperature Hopkinson tension test device |
| CN104515707A (en) * | 2015-01-12 | 2015-04-15 | 西北工业大学 | Temperature measurement method for electrified tensile test piece and tensile test device |
-
2016
- 2016-07-29 CN CN201610615594.6A patent/CN106289999A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002082031A (en) * | 2000-09-05 | 2002-03-22 | Ishikawajima Harima Heavy Ind Co Ltd | Hopkinson bar testing apparatus |
| CN201828465U (en) * | 2010-11-23 | 2011-05-11 | 中国工程物理研究院总体工程研究所 | High-temperature Hopkinson tension test device |
| CN104515707A (en) * | 2015-01-12 | 2015-04-15 | 西北工业大学 | Temperature measurement method for electrified tensile test piece and tensile test device |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108387458A (en) * | 2018-05-04 | 2018-08-10 | 中国科学院苏州纳米技术与纳米仿生研究所 | Carbon nano-tube fibre mechanical property testing system at high operating temperatures and method |
| CN109357951A (en) * | 2018-10-26 | 2019-02-19 | 济南大学 | The method and device of material property extension test under a kind of low temperature |
| CN109752260A (en) * | 2019-03-06 | 2019-05-14 | 中国工程物理研究院材料研究所 | A kind of device for high temperature easy oxidation metal material tensile test |
| CN110441162A (en) * | 2019-07-31 | 2019-11-12 | 湖北航天技术研究院总体设计所 | Ablative material mechanical performance test macro and method based on time domain temperature |
| CN110658082A (en) * | 2019-10-17 | 2020-01-07 | 山东大学 | System and method for testing r value of high-temperature tensile anisotropy of metal plate |
| CN113820203A (en) * | 2021-10-13 | 2021-12-21 | 中国航发北京航空材料研究院 | Device and method for double-sided temperature difference tensile test |
| CN113820203B (en) * | 2021-10-13 | 2023-07-21 | 中国航发北京航空材料研究院 | Device and method for double-sided temperature difference tensile test |
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Application publication date: 20170104 |