CN2859509Y - Automatic data acquisition stretching creep testing device - Google Patents
Automatic data acquisition stretching creep testing device Download PDFInfo
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- CN2859509Y CN2859509Y CN 200520127714 CN200520127714U CN2859509Y CN 2859509 Y CN2859509 Y CN 2859509Y CN 200520127714 CN200520127714 CN 200520127714 CN 200520127714 U CN200520127714 U CN 200520127714U CN 2859509 Y CN2859509 Y CN 2859509Y
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Abstract
A data automatic collection stretches creep test device, which belongs to the technique area of material performance test, especially suited for the creep deformation test of metal material under different temperature and tensile stress. This device comprises of loading system which is used for fixing creep sampling (3) and apllying load(4) on it; the temperature control system which is used for heating up and controlling ambient temperature arround creep sampling (3); the temperature control system which is used for heating up and controlling ambient temperature arround creep sampling (3); the creep signal data gathering creep sampling (3) and the data automatic collection system for processing creep signal data. This utility model may implement high temperature creep property test of any material under different temperature and tensile load. It can automatically carry out data collection on the creep deformation of test material, and gathering data error is less; Furthermore, it traces material creep process and linked with the computer, directly draw creep process. At the same time, it may test material's steady state creep rate under test condition.
Description
Technical field:
A kind of data auto-acquiring stretching creep deformation proving installation provided by the utility model belongs to the material properties test technical field, is applicable to the test of any material, is particularly useful for the test of metal material deformation of creep under different temperatures and tension.
Background technology:
Generally speaking, mechanical property is the very important index of research and evaluation material property, and wherein the high temperature creep property of material is again a very important technical indicator.
Refractory ceramics creep testing machine by Tsing-Hua University's development, application number is: 89107018.4 patent of invention, this creep testing machine is primarily aimed at stupalith, and desired sample of this device and load are bigger, are not suitable for the test of the less microelectronics of hardness and loading stress with material and soldered fitting high temperature creep property.
" a kind of deformation of creep measurement and automatic data collection device " by the development of Shenyang Ltd of aeromotor at dawn group, application number is: 02273979.3, though this device has been realized computer control deformation of creep measurement and automatic data collection, but it only is the measurement to creep strain, does not relate to the creep test process.This device adopts extensometer tensile creep sample, adopts the differential transformer transducer image data, contacts with creep sample because of installing directly, therefore unavoidably can produce some contact errors.
By Mitsubishi Heavy Industry Ltd. application, the patent No. is: 02148207.1 patent of invention, it provides a kind of accuracy method and device of assessing creep rupture.The croop property that this device mainly comes assessment material by the size and the crystal orientation of mensuration metal material crystal grain, mainly be applicable to ferrous materials, this method is not suitable for that hardness is less, the metallographic preparation relatively the microelectronics of difficulty with the assessment of the croop property of material and soldered fitting.
The utility model content:
For overcome exist in the prior art can not be less to hardness, the metallographic preparation relatively the microelectronics of difficulty with the deficiency of the assessment of the croop property of material and soldered fitting, the utility model provides a kind of measurement more accurate data auto-acquiring stretching creep deformation proving installation, its purpose is the deformation of creep of test material is gathered automatically, the material creep process is followed the tracks of, and link to each other with computing machine, directly draw creep process, the steady state creep strain rate of simultaneously measurable material under deciding test condition.It can realize the mensuration of any material high temperature creep property under different temperatures and tensile load.
To achieve these goals, the utility model adopts following technical scheme:
The utility model provides a kind of data auto-acquiring stretching creep deformation proving installation, and it comprises:
Be used for creep sample is fixed the loading system that reaches loaded load; Be used for the creep sample ambient temperature is heated and heating of the environment controlled and temperature control system; Be used to gather the creep signal data of creep sample and the automatic data acquisition system that the creep signal data is handled.
Described loading system comprises the loading support, load and the creep sample mechanism that is installed.
Described environment heating and temperature control system are made of power supply, heating element and temperature controller, and wherein power supply is connected with heating element by temperature controller.
Described heating element is for can place creep sample the annular in it, the heating element of tubular.
Described temperature controller comprises thermopair, and the other end of thermopair is popped one's head in to be placed in the heating element, can link to each other with creep sample, or as far as possible near creep sample.
Described automatic data acquisition system comprises that the computing machine of displacement transducer, amplifilter and installation A/D converter constitutes, and wherein displacement transducer is connected with computing machine by amplifilter.
Described displacement transducer is fixed in the following side space of creep sample, measures with the creeping displacement to creep sample.
Described amplifilter is connected with computing machine by data line, carries out data transmission by ISDN between amplifilter and the computing machine.
In sum, data auto-acquiring stretching creep deformation proving installation provided by the utility model, can overcome exist in the prior art can not be less to hardness, metallographic prepares the deficiency of difficult relatively microelectronics with the assessment of the croop property of material and soldered fitting, can realize the mensuration of any material high temperature creep property under different temperatures and tensile load, the deformation of creep to test material is gathered automatically, the material creep process is followed the tracks of, and link to each other with computing machine, directly draw creep process, the steady state creep strain rate of simultaneously measurable material under deciding test condition is for research and assessment material croop property and reliability provide strong foundation.In addition, in the utility model to load and surrounding environment may command that creep sample loaded, but variable load is repeatedly measured to the creep sample alternating temperature; Do not contact creep sample when with optical grid line displacement sensor the creeping displacement amount being carried out data acquisition, it is littler therefore to use data acquisition error of the present utility model, and test result is more accurate.
Description of drawings:
Fig. 1: data auto-acquiring stretching creep deformation proving installation synoptic diagram;
Fig. 2: loading system synoptic diagram;
Fig. 3: environment heating and temperature control system synoptic diagram;
Fig. 4: data acquisition synoptic diagram;
Fig. 5: data acquisition flow figure;
Fig. 6: one-piece construction synoptic diagram.
Embodiment:
Data auto-acquiring stretching creep deformation proving installation of the present utility model mainly is made of following three parts: loading system, environment heating and temperature control system and automatic data acquisition system.
Fig. 1 is the synoptic diagram of this data auto-acquiring stretching creep deformation proving installation.The course of work of measuring the material creep distortion is as follows: be fixed on creep sample on the loading system and apply test load, start environment heating and temperature control system then, make environment temperature reach preset temperature, the log-on data acquisition system can be measured the deformation of creep of material under this test condition.
With reference to Fig. 6, data auto-acquiring stretching creep deformation proving installation of the present utility model comprises: be used for creep sample is fixed the loading system that reaches loaded load; Be used for the creep sample ambient temperature is heated and heating of the environment controlled and temperature control system; Be used to gather the creep signal data of creep sample and the automatic data acquisition system that the creep signal data is handled.
Described loading system comprises and loads support 1, load 4 and the creep sample mechanism 9 that is installed.
Described environment heating and temperature control system are made of power supply 10, heating element 2 and temperature controller 7, and wherein power supply 10 is connected with heating element 2 by temperature controller 7.
Described heating element 2 is for can place creep sample 3 annular in it, the heating element of tubular.
Described temperature controller 7 comprises thermopair 8, and the other end of thermopair 8 is popped one's head in to be placed in the heating element 2.
Described automatic data acquisition system comprises displacement transducer 5, amplifilter 6 and computing machine 11 formations of A/D converter is installed that wherein displacement transducer 5 is connected with computing machine 11 by amplifilter 6.
Described displacement transducer 5 is fixed in a position of 3 times side spaces of creep sample, so that the creeping displacement of creep sample 3 is measured, produces the creeping displacement signal.
Described amplifilter 6 is connected in computing machine 11 by data line, carries out data transmission by ISDN between amplifilter 6 and the computing machine 11.
Using the utility model, to carry out the step of data auto-acquiring stretching creep deformation test as described below:
A, creep sample 3 dangled to be fixed in to load on the support 1, and is placed in the heating element 2 of an annular tubular;
B, to creep sample loaded load 4, open 2 pairs of creep sample surrounding environment of heating element and heat;
C, place in the heating element 2 by probe and to link to each other or as far as possible close creep sample 3, the temperature of 7 pairs of creep sample 3 surrounding environment of temperature controller is control effectively with creep sample 3 with its thermopair 8;
D, displacement controller 5 is fixed in the following side space of creep sample 3, after the creeping displacement signal of creep sample 3 gathered, send into amplifilter 6, be converted to simulating signal, this simulating signal is sent in the computing machine 11 that A/D converter is housed by ISDN handled again.
Fig. 2 is the synoptic diagram of loading system, and as shown in Figure 2, loading system comprises and loads support 1, load 4 and the creep sample mechanism 9 that is installed, and loads support 1 and mainly works to hang creep sample 3 and load 4, and general requirement has favorable rigidity.Load 4 can be set (the platform balance sliding weight of steelyard is adopted in this test) according to test situation.The mechanism 9 that is installed can adopt general triangle or hexagonal chuck, also can adopt other forms, and this test adopts punching to hang.
Figure 3 shows that environment temperature and temperature control system synoptic diagram, structure as shown in Figure 3, environment heating and temperature control system are made of power supply 10, heating element 2 and temperature controller 7, temperature controller 7 places in the heating element 2 by the probe with thermopair 8, so that the ambient temperature of creep sample 3 is controlled.Power supply 10 can adopt the general lighting power supply, and heating element 2 adopts commercially available annular heating element, selects the heating element of annular tubular here for use, and creep sample 3 is placed in it; Also can adopt other heat forms.Its heating is by XMTE series digital display temperature controller and the control of nickel chromium-nickel silicon thermocouple temperature controller, and this system is mainly creep test temperature conditions is provided.
In the one-piece construction synoptic diagram shown in Figure 6, automatic data acquisition system comprises displacement transducer 5, the utility model can adopt optical grid line displacement sensor (RLS-6), amplifilter 6 (B10000) and computing machine 11 formations of A/D converter (AD1674) are installed, amplifilter 6 is connected in computing machine 11 by data line, carries out data transmission by ISDN between amplifilter 6 and the computing machine 11.
When test during tiny sample, can reverberator be set and optical grid line displacement sensor is used, with the creeping displacement amount of the small creep sample of accurate test.
The data acquisition synoptic diagram as shown in Figure 4, creep sample 3 is heated, after its creeping displacement amount is gathered by displacement transducer 5, produce the creeping displacement signal, this creeping displacement signal is amplified and filtering, be converted to simulating signal, i.e. electric signal, be converted to computing machine 11 accessible digital signals through A/D converter again, by the software of computing machine 11 this digital signal handled again.
By software programming, can realize automatic data collection.
Data acquisition is finished jointly by displacement transducer 5, amplifilter 6 and A/D converter.Displacement transducer 5 and amplifilter 6 actings in conjunction, the creeping displacement conversion of signals is become a kind of simulating signal, it is electric signal, this electric signal is sent into A/D converter by DB25 chip plug, A/D converter is converted to the digital signal that computing machine can be handled and discern to simulating signal (electric signal) under computer control.Data acquisition flow is sent into input channel number to A/D converter as shown in Figure 5,20 microseconds of delaying time (can wake up with a start an A/D conversion), start A/D converter and carry out the A/D conversion, judge then whether the A/D conversion is finished, if, sampling is finished, and then computing machine will be handled sampled result; If not, proceed the A/D conversion.
It should be noted that the data line two ends plug that connects A/D converter and amplifilter 6 output terminals all will prevent the noise jamming processing.Data acquisition system (DAS) after handling will be imported the simulating signal of amplifilter 6 outputs into A/D converter, and A/D converter is converted into the digital signal that computing machine 11 can be discerned and handle with simulating signal.
The signal of these digital signals and displacement transducer 5 is corresponding one by one, but also inconsistent, therefore need accurately demarcate system.Demarcate the general simple regression analysis method that adopts.Can obtain the unary linear relation of displacement and data presentation like this.Pass through certain procedure again, be easy to obtain creeping displacement amount and time relation, steady state creep strain rate and time relation.
From the above mentioned, data auto-acquiring stretching creep deformation proving installation provided by the utility model, can overcome exist in the prior art can not be less to hardness, metallographic prepares the problems such as deficiency of difficult relatively microelectronics with the assessment of the croop property of material and soldered fitting, can realize the mensuration of any material high temperature creep property under different temperatures and tensile load, the deformation of creep to test material is gathered automatically, the material creep process is followed the tracks of, and link to each other with computing machine, directly draw creep process, the steady state creep strain rate of simultaneously measurable material under deciding test condition is for research and assessment material croop property and reliability provide reliably strong foundation.
In addition, different is load and the ambient temperature may command that creep sample is loaded for the utility model and other technologies, but variable load is repeatedly measured to the creep sample alternating temperature; Do not contact creep sample when with optical grid line displacement sensor displacement being carried out data acquisition, it is littler therefore to use data acquisition error of the present utility model, and test result is more accurate.
By the description of the drawings and corresponding specific embodiment the utility model is described as mentioned above.But be understood that, wherein in an embodiment about the description of the configuration of the size of creep sample, material type, componentry and positioned opposite and do not mean that the utility model is limited to particular forms disclosed, this programme only is open in the mode of example, unless otherwise specified.
Claims (7)
1, a kind of data auto-acquiring stretching creep deformation proving installation, it is characterized in that: it comprises: be used for creep sample (3) is fixed the charger that reaches loaded load (4); Be used for creep sample (3) ambient temperature is heated and heating of the environment controlled and temperature control equipment; Be used to gather the creep signal data of creep sample (3) and the automatic data collection device that the creep signal data is handled; Creep sample (3) is connected with load (4) to dangle to be fixed in and loads on the support (1); The creep sample mechanism (9) that is installed hangs on and loads on the support (1); Power supply (10) is connected with heating element (2) by temperature controller (7); Displacement transducer (5) is connected with computing machine (11) by amplifilter (6); Amplifilter (6) is connected with computing machine (11) by data line.
2, data auto-acquiring stretching creep deformation proving installation as claimed in claim 1, it is characterized in that: described environment heating and temperature control equipment, be made of power supply (10), heating element (2) and temperature controller (7), wherein power supply (10) is connected with heating element (2) by temperature controller (7).
3, data auto-acquiring stretching creep deformation proving installation as claimed in claim 3 is characterized in that: described heating element (2) is for can place creep sample (3) annular in it, the heating element of tubular.
4, data auto-acquiring stretching creep deformation proving installation as claimed in claim 3, it is characterized in that: described temperature controller (7) comprises thermopair (8), the other end probe of thermopair (8) is placed in the heating element (2), can link to each other with creep sample (3), or as far as possible near creep sample (3).
5, data auto-acquiring stretching creep deformation proving installation as claimed in claim 1, it is characterized in that: described automatic data collection device, computing machine (11) formation that comprises displacement transducer (5), amplifilter (6) and A/D converter is installed, wherein displacement transducer (5) is connected with computing machine (11) by amplifilter (6).
6, data auto-acquiring stretching creep deformation proving installation as claimed in claim 6 is characterized in that: the described displacement transducer that the creeping displacement of creep sample (3) is measured, be fixed in the following side space of creep sample (3).
7, data auto-acquiring stretching creep deformation proving installation as claimed in claim 6 is characterized in that: described amplifilter, be connected with computing machine (11) by data line, and carry out data transmission by ISDN between amplifilter (6) and the computing machine (11).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520127714 CN2859509Y (en) | 2005-10-13 | 2005-10-13 | Automatic data acquisition stretching creep testing device |
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| CN 200520127714 CN2859509Y (en) | 2005-10-13 | 2005-10-13 | Automatic data acquisition stretching creep testing device |
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| CN2859509Y true CN2859509Y (en) | 2007-01-17 |
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| CN 200520127714 Expired - Fee Related CN2859509Y (en) | 2005-10-13 | 2005-10-13 | Automatic data acquisition stretching creep testing device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012058853A1 (en) * | 2010-11-05 | 2012-05-10 | 济南兰光机电技术有限公司 | Material property testing apparatus |
| CN102494959A (en) * | 2011-12-15 | 2012-06-13 | 沈阳黎明航空发动机(集团)有限责任公司 | Method for automatically measuring elongation rate of metal test sample under high temperature state |
| CN102944483A (en) * | 2012-12-11 | 2013-02-27 | 东南大学 | Testing device and method for creep performance of material under coupling action of multiple factors |
| CN103364282A (en) * | 2013-07-25 | 2013-10-23 | 常熟理工学院 | Test method for soft-solder alloy creep-deformation performance and testing device used by method |
| CN104457656A (en) * | 2014-12-02 | 2015-03-25 | 公安部天津消防研究所 | Displacement measurement device with temperature and tensile force correcting function and displacement measurement method |
| CN109030234A (en) * | 2018-09-19 | 2018-12-18 | 中国工程物理研究院化工材料研究所 | The test macro and test method of croop property when a kind of explosive is long |
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2005
- 2005-10-13 CN CN 200520127714 patent/CN2859509Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012058853A1 (en) * | 2010-11-05 | 2012-05-10 | 济南兰光机电技术有限公司 | Material property testing apparatus |
| US9026386B2 (en) | 2010-11-05 | 2015-05-05 | Yunzhong Jiang | Material property testing devices with capabilities of monitoring energy-consumption and detecting the environment |
| CN102494959A (en) * | 2011-12-15 | 2012-06-13 | 沈阳黎明航空发动机(集团)有限责任公司 | Method for automatically measuring elongation rate of metal test sample under high temperature state |
| CN102944483A (en) * | 2012-12-11 | 2013-02-27 | 东南大学 | Testing device and method for creep performance of material under coupling action of multiple factors |
| CN103364282A (en) * | 2013-07-25 | 2013-10-23 | 常熟理工学院 | Test method for soft-solder alloy creep-deformation performance and testing device used by method |
| CN104457656A (en) * | 2014-12-02 | 2015-03-25 | 公安部天津消防研究所 | Displacement measurement device with temperature and tensile force correcting function and displacement measurement method |
| CN104457656B (en) * | 2014-12-02 | 2017-02-22 | 公安部天津消防研究所 | Displacement measurement device with temperature and tensile force correcting function and displacement measurement method |
| CN109030234A (en) * | 2018-09-19 | 2018-12-18 | 中国工程物理研究院化工材料研究所 | The test macro and test method of croop property when a kind of explosive is long |
| CN109030234B (en) * | 2018-09-19 | 2024-03-12 | 中国工程物理研究院化工材料研究所 | System and method for testing long-time creep property of explosive |
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| CF01 | Termination of patent right due to non-payment of annual fee |