CN203572731U - Non-transmission simple thermal fatigue test machine - Google Patents
Non-transmission simple thermal fatigue test machine Download PDFInfo
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- CN203572731U CN203572731U CN201320791855.1U CN201320791855U CN203572731U CN 203572731 U CN203572731 U CN 203572731U CN 201320791855 U CN201320791855 U CN 201320791855U CN 203572731 U CN203572731 U CN 203572731U
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- thermal fatigue
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- testing machine
- simple thermal
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- 238000009661 fatigue test Methods 0.000 title claims abstract description 30
- 238000001816 cooling Methods 0.000 claims abstract description 43
- 239000000498 cooling water Substances 0.000 claims abstract description 36
- 238000010438 heat treatment Methods 0.000 claims abstract description 21
- 238000003825 pressing Methods 0.000 claims description 15
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 12
- 230000008569 process Effects 0.000 abstract description 11
- 230000005540 biological transmission Effects 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 27
- 238000012360 testing method Methods 0.000 description 17
- 239000002826 coolant Substances 0.000 description 7
- 230000001351 cycling effect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000012530 fluid Substances 0.000 description 3
- 230000008646 thermal stress Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000001771 impaired effect Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 238000003556 assay Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000007323 disproportionation reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000008236 heating water Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
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Abstract
The utility model discloses a non-transmission simple thermal fatigue test machine which comprises a heating device, a cooling device, a temperature measuring device used for measuring the temperature of a sample and a control device, wherein the heating device is an electric furnace; the electric furnace comprises a furnace body and a heater positioned in the furnace body; the furnace body is alos internally provided with a sample rack used for placing the sample; the cooling device comprises a cooling water pipe and a drain pipe; the cooling water pipe is extended into the furnace body from the upper part of the furnace body; the drain pipe is arranged at the lower part of the furnace body; the temperature measuring device is connected to the control device. The sample is fixed in the heating device; the cooling device is used for cooling the sample by use of cooling water, so as to finish the whole cold and hot circulation process, so that the sample is prevented from moving back and forth between the heating device and the cooling device, therefore mechanical problems in the sample moving process are avoided, the structure of the thermal fatigue test machine is simplified, and the equipment cost is lowered.
Description
Technical field
The utility model relates to material thermal fatigue test apparatus, relates in particular to a kind of non-drive formula Simple thermal fatigue testing machine.
Background technology
In the changing environment that colds and heat succeed each other, material easily produces fatigue crack owing to being subject to repeatedly thermal stress, causes and is permitted multipart inefficacy.If nuclear power station fluctuation pipe is in heating and cooling process, in voltage stabilizer, in cooling medium and main pipeline cooling medium, there is certain temperature difference, when two fluids mix, because mixing, cold fluid and hot fluid not exclusively at fluctuation pipe place, forms thermally stratified layer, the pipe that makes to fluctuate is even at section temperature distributing disproportionation, cause pipe surface temperature layering, thereby produce integrally bending stress and local thermal stress at pipeline section, the increase of its thermal stress may surpass fatigue limit.Therefore the thermal fatigue property research of, carrying out associated materials is very necessary.
Utility model content
The purpose of this utility model is just to provide a kind of non-drive formula Simple thermal fatigue testing machine being exclusively used in cooling and heating circulation system, it is fixed on sample in heating arrangement, by cooling device, leading to chilled water carries out cooling to sample, complete whole cold cycling process, can avoid sample to move around in heating arrangement and cooling device, thereby avoided sample in moving process, to produce mechanical problem, and can simplify structure, the reduction equipment cost of thermal fatigue tester.
For achieving the above object, non-drive formula Simple thermal fatigue testing machine of the present utility model, comprise heating arrangement, cooling device, for measuring temperature measuring equipment and the control device of specimen temperature, described heating arrangement is electric furnace, described electric furnace comprises body of heater and is positioned at the well heater of body of heater, in described body of heater, be also provided with for placing the specimen mounting of sample, described cooling device comprises cooling water pipe and drainpipe, described cooling water pipe stretches in body of heater, described drainpipe is arranged on the bottom of body of heater, and described temperature measuring equipment is connected on control device.In prior art, thermal fatigue tester is mainly to complete cold cycling by the sample that moves around in hot-cool environment, the thermal fatigue of test sample in this process.But in actual work, inventor finds that mechanical problem easily appears in sample in moving process, affect test result, and the fatigue tester of existing cold cycling is owing to wanting Control Assay or heating system or cooling system to move, need to be equipped with special gearing and control system, system complex, equipment cost is higher.In view of this, inventor has proposed the non-drive formula Simple thermal fatigue testing machine in this programme, this non-drive formula Simple thermal fatigue testing machine arranges specimen mounting in the body of heater inside of electric furnace, well heater by electric furnace heats sample, and at body of heater top access cooling water pipe, bottom of furnace body access drainpipe, by cooling water pipe, leading to chilled water carries out cooling to sample, chilled water after use is discharged by drainpipe, the cooling cold cycling that realizes sample of the heating and cooling water by well heater, temperature measuring equipment is measured the temperature of specimen surface, and be transferred to control device and show.Sample only need to be fixed on body of heater inside like this, need not move around, can avoid sample in the middle generation mechanical problem that moves around, non-drive formula Simple thermal fatigue testing machine is also without gearing and driving control system are set simultaneously, can simplify self structure, reduce equipment cost.In addition, in the utility model, adopt logical chilled water to carry out cooling to the specimen surface directly mode of spray of carrying out, cooling velocity is faster, cooling effect is better, and can to sample, carry out Local cooling according to the test demand of sample, and not needing sample integral body coolingly, the scope of application is wider, versatility is better, and energy-conserving and environment-protective more.
Meet chilled water when avoiding well heater in working order impaired, further, be also provided with for isolating the splash guard of steam between described well heater and specimen mounting, this splash guard is separated heating source and cooling source effectively.
Further, described splash guard is quartz glass plate.
For further improving the intelligent level of non-drive formula Simple thermal fatigue testing machine, on described cooling water pipe, be also provided with solenoid valve and flowmeter, this solenoid valve and flowmeter are positioned at outside body of heater, and solenoid valve is for automatically controlling the opening and closing of cooling water pipe path; Flowmeter is for controlling, show the discharge of cooling water pipe path.
Further, described body of heater top is also provided with for discharging the vent port of water vapor in cooling procedure body of heater.
Further, described temperature measuring equipment is contact thermocouple, and contact thermocouple is connected with specimen surface.
Further, described cooling device also comprises condensate pipe, described condensate pipe is wrapped in drainpipe top, the starting point of condensate pipe and cooling water pipe is connected to same coolant outlet, cooling water pipe flows into the chilled water guiding of this coolant outlet to specimen surface, to carry out cooling in stove, condensate pipe guides to drainpipe and body of heater junction by chilled water, to flow out to the water of drainpipe in body of heater, carries out coolingly, and the water of being convenient in body of heater is discharged smoothly.
Further, described specimen mounting comprises pressing plate and two supports of vertically placing of two horizontal positioned, and two pressing plates are separately positioned on the upper/lower terminal of support, and the two ends of support are connected with two pressing plates respectively, and during use, sample is fixed between two pressing plates.
Further, two supports of described specimen mounting lay respectively at the both sides of body of heater outside, and pressing plate two ends pass body of heater and are fixedly connected with two supports.In this programme, thereby the effect of support is except fixation clip guarantees that sample remains static in test, can also, for fixing electric furnace, allow electric furnace in certain height, convenient loading sample; And support is arranged on body of heater outside, be mainly to consider limited space in body of heater, and in body of heater, temperature sharply changes, support is placed in body of heater and can expands with heat and contract with cold, support is bad to the fixed effect of sample and heating furnace, is arranged on body of heater outside and can effectively avoids these problems.
Non-drive formula Simple thermal fatigue testing machine application process, comprises the following steps:
Step 1: sample is fixed on specimen mounting;
Step 2: temperature measuring equipment is fixed on to the position that can measure specimen surface temperature; If while adopting the contact type temperature measuring devices such as thermopair, temperature measuring equipment is contacted with specimen surface; If while adopting the contactless temperature measuring equipment such as infrared thermometer, temperature measuring equipment can have certain distance with sample, but this distance can not be distal to the distance of reaction farthest of temperature measuring equipment;
Step 3: the temperature that well heater is set by control device;
Step 4: utilize well heater to heat sample;
Step 5: observe specimen surface temperature by control device, when specimen surface temperature reaches test temperature peak, solenoid valve is opened automatically, and cooling water pipe water flowing is carried out spraying cooling to sample;
Step 6: observe specimen surface temperature by control device, when specimen surface temperature reaches test temperature minimum point, solenoid valve cuts out automatically, stops cooling water pipe water flowing;
Step 7: repeating step four, to step 6, when cycle index reaches after testing requirements, is closed well heater and stopped cooling water pipe water flowing.
In the step 3 of this programme, the highs and lows of test temperature can also be further set in control device, for controlling the break-make of cooling water pipe chilled water, control.
With respect to prior art, the utlity model has following advantage and beneficial effect:
1, non-drive formula Simple thermal fatigue testing machine of the present utility model is fixed on sample in heating arrangement, by cooling device, leading to chilled water carries out cooling to sample, complete whole cold cycling process, can avoid sample to move around in heating arrangement and cooling device, thereby avoid sample in moving process, to produce mechanical problem;
2, non-drive formula Simple thermal fatigue testing machine of the present utility model is without mobile sample when carrying out thermal fatigue test, and with respect to prior art, it need not arrange gearing, has greatly simplified structure, the reduction equipment cost of thermal fatigue tester;
3, non-drive formula Simple thermal fatigue testing machine of the present utility model adopts logical chilled water to carry out cooling to the specimen surface directly mode of spray of carrying out, cooling velocity is faster, cooling effect is better, and can carry out cooling, applied widely, highly versatile to sample part.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of specimen mounting in embodiment 3.
Marginal data: 1, body of heater; 2, well heater; 3, cooling water pipe; 4, drainpipe; 5, solenoid valve; 6, flowmeter; 7, drainpipe; 8, temperature measuring equipment; 9, specimen mounting; 10, control device; 11, vent port; 12, splash guard; 13, cooling water pipe ozzle; 14, pressing plate; 15, support.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, but embodiment of the present utility model is not limited only to this.
[embodiment 1]
As shown in Figure 1, the non-drive formula Simple thermal fatigue testing machine of the present embodiment, comprise heating arrangement, cooling device, temperature measuring equipment and control device 10: described heating arrangement is electric furnace, described electric furnace comprises body of heater 1 and is positioned at the well heater 2 of body of heater 1, is also provided with for placing the specimen mounting 9 of sample in described body of heater 1; Described cooling device comprises cooling water pipe 3 and drainpipe 7, the direct top from body of heater 1 of cooling water pipe 3 or top or middle part are stretched in body of heater 1, chilled water is directly sprayed onto specimen surface by cooling water pipe ozzle 13, and drainpipe 7 is positioned at body of heater 1 bottom, for discharging the chilled water of body of heater 1 inside; Described temperature measuring equipment 8 is connected on control device 10, and stretches in body of heater 1 from body of heater 1 side, measures the surface temperature of sample and is transferred to control device 10; Described control device 10 is mainly used in controlling furnace temperature, the water inlet of monitoring, showing, record specimen temperature situation of change and controlling cooling water pipe 3, this control device 10 can adopt industrial computer conventional in existing thermal fatigue test system etc., repeats no more its concrete structure in the present embodiment.
[embodiment 2]
On the basis of embodiment 1, in the present embodiment, between the well heater 2 of non-drive formula Simple thermal fatigue testing machine and specimen mounting 9, be also provided with for isolating the splash guard 12 of steam; On cooling water pipe 3, be also provided with solenoid valve 5 and flowmeter 6, this solenoid valve 5 and flowmeter 6 are positioned at outside body of heater 1; Body of heater 1 top is also provided with vent port 11; Specimen mounting 9 comprises that the pressing plate 14 of two horizontal positioned and 15, two pressing plates 14 of support of two vertical placements are separately positioned on the upper/lower terminal of support 15, and the two ends of support 15 are connected with two pressing plates 14 respectively.
Before test, sample is fixed between pressing plate 14, in control device 10, set the temperature of well heater 2, specimen temperature when solenoid valve 5 opens and closes, start test, well heater 2 is always in heated condition, when sample is heated to test temperature high temperature dot, temperature measuring equipment 8 by signal feedback to control device 10, solenoid valve 5 is opened, chilled water enters cooling water pipe 3 and is undertaken cooling by 13 pairs of samples of cooling water pipe ozzle, when specimen temperature is down to the low warm spot of test temperature, solenoid valve 5 cuts out, the sample intensification of being again heated, repeatedly move in circles and realize the Thermal Fatigue Damage test of material.
[embodiment 3]
On the basis of embodiment 2, in the present embodiment, cooling device also comprises condensate pipe 4, and described condensate pipe 4 is wrapped in drainpipe 7 tops.Condensate pipe 4 is connected to same coolant outlet with the starting point of cooling water pipe 3, the chilled water of coolant outlet is divided into two-way, the 3 pairs of samples of cooling water pipe of leading up to carry out cooling, the drainpipe 7 of 4 pairs of body of heater 1 bottoms of condensate pipe of separately leading up to carries out cooling, to guarantee that the chilled water in body of heater discharges smoothly.In Fig. 1, the position of two label 4 indications is same condensate pipe 4, and the label 4 in the figure upper right corner is the part that condensate pipe 4 is connected with coolant outlet, and under figure, label 4 indications are the condensate pipe 4 being wrapped on drainpipe 7, for carrying out cooling to drainpipe 7.
As shown in Figure 2, two supports 15 of the specimen mounting 9 in the present embodiment lay respectively at the both sides of body of heater 1 outside, and pressing plate 14 two ends pass body of heater 1 and are fixedly connected with two supports 15.
[embodiment 4]
On the basis of above-described embodiment, the body of heater 1 in the present embodiment is square structure; Well heater 2 is panel heater, and panel heater is positioned at square furnace one side, and heating-up temperature can reach 1200 ℃; Splash guard 12 adopting quartz glass plates, are installed at panel heater dead ahead, and thickness is 5mm, and length and width are identical with well heater 2, with separated heating source and cooling source, meet chilled water impaired while avoiding well heater in working order; Temperature measuring equipment 8 adopts contact thermocouple, and contact thermocouple contacts with specimen surface, gathers the temperature of specimen surface.In practical application, temperature measuring equipment also can adopt other devices according to actual environment demand, such as but not limited to infrared thermometer, thermal resistance.
Non-drive formula Simple thermal fatigue testing machine application process in the present embodiment, comprises the following steps:
Step 1: sample is fixed on specimen mounting 9;
Step 2: temperature measuring equipment 8 is fixed on to the position that can measure specimen surface temperature;
Step 3: the temperature that well heater 2 is set by control device 10;
Step 4: utilize 2 pairs of samples of well heater to heat;
Step 5: observe specimen surface temperature by control device 10, when specimen surface temperature reaches test temperature peak, cooling water pipe 3 water flowings are carried out spraying cooling to sample;
Step 6: observe specimen surface temperature by control device 10, when specimen surface temperature reaches test temperature minimum point, stop cooling water pipe 3 water flowings;
Step 7: repeating step four, to step 6, when cycle index reaches after testing requirements, is closed well heater 3 and stopped cooling water pipe 3 water flowings.
Described in step 2, temperature measuring equipment 8 is fixed on to the position that can measure specimen surface temperature, refers to: if while adopting the contact type temperature measuring devices 8 such as thermopair, temperature measuring equipment 8 is contacted with specimen surface; If while adopting the contactless temperature measuring equipment 8 such as infrared thermometer, temperature measuring equipment 8 can have certain distance with sample, but this distance can not be distal to the distance of reaction farthest of temperature measuring equipment 8.
In practical application, step 4 to step 6 can be controlled automatically by control device 10, and while automatically controlling, the solenoid valve 5 that the chilled water break-make of cooling water pipe 3 is controlled on cooling water pipe 3 by control device 10 is realized.Now, in step 3, the highs and lows of test temperature can also be further set by control device 10, this peak is the unlocking condition of solenoid valve 5, controls solenoid valve 5 and opens; Minimum point is the condition of closing of solenoid valve 5; Controlling solenoid valve 5 closes.
Below be only preferred implementation of the present utility model, protection domain of the present utility model is also not only confined to above-described embodiment, and all technical schemes belonging under the utility model thinking all belong to protection domain of the present utility model.It should be pointed out that for those skilled in the art, the some improvements and modifications not departing under the utility model principle prerequisite, should be considered as protection domain of the present utility model.
Claims (9)
1. non-drive formula Simple thermal fatigue testing machine, comprise heating arrangement, cooling device, for measuring temperature measuring equipment (8) and the control device (10) of specimen temperature, it is characterized in that, described heating arrangement is electric furnace, described electric furnace comprises body of heater (1) and is positioned at the well heater (2) of body of heater (1), in described body of heater (1), be also provided with the specimen mounting (9) for placing sample, described cooling device comprises cooling water pipe (3) and drainpipe (7), described cooling water pipe (3) stretches in body of heater (1), described drainpipe (7) is arranged on the bottom of body of heater (1), described temperature measuring equipment (8) is connected on control device (10).
2. non-drive formula Simple thermal fatigue testing machine according to claim 1, is characterized in that, is also provided with the splash guard (12) for isolating steam between described well heater (2) and specimen mounting (9).
3. non-drive formula Simple thermal fatigue testing machine according to claim 2, is characterized in that, described splash guard (12) is quartz glass plate.
4. non-drive formula Simple thermal fatigue testing machine according to claim 1, is characterized in that, is also provided with solenoid valve (5) and flowmeter (6) on described cooling water pipe (3).
5. non-drive formula Simple thermal fatigue testing machine according to claim 1, is characterized in that, described body of heater (1) top is also provided with vent port (11).
6. non-drive formula Simple thermal fatigue testing machine according to claim 1, is characterized in that, described temperature measuring equipment (8) is contact thermocouple, and contact thermocouple is connected with specimen surface.
7. according to the arbitrary described non-drive formula Simple thermal fatigue testing machine of claim 1 to 6, it is characterized in that, described cooling device also comprises condensate pipe (4), and described condensate pipe (4) is wrapped in drainpipe (7) top.
8. according to the arbitrary described non-drive formula Simple thermal fatigue testing machine of claim 1 to 6, it is characterized in that, described specimen mounting (9) comprises pressing plate (14) and two supports (15) of vertically placing of two horizontal positioned, two pressing plates (14) are separately positioned on the upper/lower terminal of support (15), and the two ends of support (15) are connected with two pressing plates (14) respectively.
9. non-drive formula Simple thermal fatigue testing machine according to claim 8, it is characterized in that, two supports (15) of described specimen mounting (9) lay respectively at the outside both sides of body of heater (1), and pressing plate (14) two ends pass body of heater (1) and are fixedly connected with two supports (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320791855.1U CN203572731U (en) | 2013-12-05 | 2013-12-05 | Non-transmission simple thermal fatigue test machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320791855.1U CN203572731U (en) | 2013-12-05 | 2013-12-05 | Non-transmission simple thermal fatigue test machine |
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| CN203572731U true CN203572731U (en) | 2014-04-30 |
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| CN201320791855.1U Expired - Lifetime CN203572731U (en) | 2013-12-05 | 2013-12-05 | Non-transmission simple thermal fatigue test machine |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105181509A (en) * | 2015-08-07 | 2015-12-23 | 辽宁科技大学 | Method for detecting use performance of refractory material |
| CN105758758A (en) * | 2016-02-29 | 2016-07-13 | 江苏科技大学 | Thermal fatigue testing machine |
| CN106769597A (en) * | 2017-01-16 | 2017-05-31 | 西南交通大学 | A kind of disc material thermal fatigue tester and test method |
| CN107884165A (en) * | 2017-09-26 | 2018-04-06 | 昆明理工大学 | A kind of convertible thermal shock and the test platform of heat fatigue |
-
2013
- 2013-12-05 CN CN201320791855.1U patent/CN203572731U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105181509A (en) * | 2015-08-07 | 2015-12-23 | 辽宁科技大学 | Method for detecting use performance of refractory material |
| CN105758758A (en) * | 2016-02-29 | 2016-07-13 | 江苏科技大学 | Thermal fatigue testing machine |
| CN105758758B (en) * | 2016-02-29 | 2019-03-29 | 江苏科技大学 | A kind of thermal fatigue tester |
| CN106769597A (en) * | 2017-01-16 | 2017-05-31 | 西南交通大学 | A kind of disc material thermal fatigue tester and test method |
| CN106769597B (en) * | 2017-01-16 | 2023-05-30 | 西南交通大学 | Brake disc material thermal fatigue testing machine and testing method |
| CN107884165A (en) * | 2017-09-26 | 2018-04-06 | 昆明理工大学 | A kind of convertible thermal shock and the test platform of heat fatigue |
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| GR01 | Patent grant | ||
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| CX01 | Expiry of patent term |
Granted publication date: 20140430 |