CN103868944B - A kind of synchronous applying method of high temperature pressure - Google Patents
A kind of synchronous applying method of high temperature pressure Download PDFInfo
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- CN103868944B CN103868944B CN201210528751.1A CN201210528751A CN103868944B CN 103868944 B CN103868944 B CN 103868944B CN 201210528751 A CN201210528751 A CN 201210528751A CN 103868944 B CN103868944 B CN 103868944B
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Abstract
A kind of synchronous applying method of high temperature pressure of the present invention belongs to structure thermal strength test field. By adopting, tinsel replaces thick sheet metal to present method, the pressure load of metal plate dispersion single load is replaced to apply mode with gaseous tension, improve the used synchronous applying method of high temperature-pressure, improve the simulation precision of temperature field and pressure load, it is achieved that temperature, pressure are synchronously coupled applying fast.
Description
Technical field
A kind of synchronous applying method of high temperature pressure of the present invention belongs to structure thermal strength test field.
Background technology
Owing to the heat-proof quality of lagging material is subject to the impact of temperature and surface pressure, Changing Pattern is non-linear, and curve extrapolation error is big, and therefore its heat-proof quality test request is tested at temperature and pressure environment. Now general test method is:
Choose the standard-sized test material treadmill test part of 200mm �� 200mm or 300mm �� 300mm, utilize quartz lamp to heat, utilize pressure beam or push rod to add the afterburning load of mounted mechanism. For making heat, power uniform load be distributed in test part surface, the metal plate that test adopts thickness to be about 5mm usually is placed on it by load face as the even load plate of even heat. But there is following problem in testing in this type of testing apparatus:
A) big with test request state difference. When adopting metal plate to transmit heat, power load to test material treadmill test part surface, can ensure that laminating is better in an initial condition, temperature field and pressure distribution meet requirement, but owing to being subject under heat, power load effect, along with the accumulation of time effect, all test material treadmill test parts and metal plate can deform, thus gap and supercompression occur at regional area, cause different zones temperature field and pressure is not of uniform size causes, big with the homogeneous temperature field of test request and well-distributed pressure difference.
B) hot-fluid and temperature rise rate power of test are limited. Owing to metal plate and loading structure are greatly heat sink, temperature field is destroyed serious. Under quartz lamp heating condition, surface temperature of metal flat plate average heating rate is less than 5 DEG C/s, and average Temperature fall speed is less than 0.5 DEG C/s. Affecting by it, test material surface temperature controllability is very poor, and rate temperature change is low, cannot realize the test of the big hot-fluid of transient state and big temperature rise rate.
C) test block easy damaged or destruction. Add mounted mechanism when loading that distortion or test material are out of shape under uneven, metal plate high temperature, pressure distribution can be caused uneven on test material surface, limiting material is out of shape, and the pressure load of regional area exceedes material and bears the limit and easily cause test material local damage or overall destroy.
Summary of the invention
The object of the present invention: by adopting tinsel to replace thick sheet metal, the pressure load of metal plate dispersion single load is replaced to apply mode with gaseous tension, improve the now general synchronous applying method of high temperature-pressure, improve the simulation precision of temperature field and pressure load, it is achieved temperature, pressure are synchronously coupled applying fast.
The technical scheme of the present invention: a kind of synchronous applying method of high temperature pressure, it is characterised in that, the method takes following step:
1) a heatproof pressurized vessel is prepared, heatproof pressurized vessel inside has active clapboard [4] that its cavity can be divided into two independent part cavitys one [2] and cavity two [7], and cavity one [2] inner-wall surface is reserved with mount pad and the air pressure adjustment mouth [1] of well heater; Cavity two [7] inner-wall surface is reserved with mount pad, the air pressure adjustment mouth [8] of test part erecting stage; Active clapboard [4] adopts tinsel to make;
2) height-adjustable test part erecting stage [6], well heater [3] is prepared;
3) open heatproof pressurized vessel, take out active clapboard [4]; To test part [5] and test part erecting stage [6] is fixed in cavity two [7], regulates test part [5] to install position, makes test part [5] protrude 0mm��20mm by load face than active clapboard [4] mounting face; Well heater [3] is arranged in cavity one [2], it is ensured that well heater [3] can heat active clapboard [4]; Active clapboard [4] is installed, mutual airtight independence between cavity one [2] and cavity two [7] can be made;
4) metal vessel cavity one [2] and cavity two [7] air pressure is controlled respectively so that it is pressure reduction meets test requirements document, and starts well heater [3] and heat.
Adopting this method compared to present test method, its advantage is:
A), after tinsel barrier film is subject to power, thermal load, rely on the ductility of metal can fit well test material surface, and with its surface deformation, exert all one's strength, thermal load transmission loss little, not limiting material distortion;
When b) adopting quartz lamp to heat, heat more than 100 DEG C/s, can be passed to rapidly test material surface, rate temperature change height by tinsel self temperature rise rate after being heated, controllability is good;
C) no matter how test block surface is out of shape, and the pressure load produced by air pressure can ensure that in test zone, power load is all consistent everywhere.
Accompanying drawing explanation
Fig. 1 is the synchronous applying method schematic diagram of high temperature pressure
1 is the air pressure adjustment mouth of cavity one, and 2 is cavity one, and 3 is well heater, and 4 is active clapboard, and 5 is test material treadmill test part, and 6 is test part erecting stage, and 7 is cavity two, and 8 is the air pressure adjustment mouth of cavity two
Embodiment
For metal plate in now general test method even heat even load time produce big with test request state difference, hot-fluid and temperature rise rate power of test are limited, the problems such as test block easy damaged or destruction, propose and utilize tinsel to replace thick sheet metal, replace the pressure load of metal plate dispersion single load to apply mode with gaseous tension. Owing to tinsel membrane thicknesses is thin, heat sink little, thermal conductivity height, when testing part loading surface and fit good with it, the additional heat sink and thermal resistance that tinsel barrier film is formed at loading surface is little, is conducive to transmission and the control of heat.
Describe the present invention below in conjunction with Fig. 1:
1) a heatproof pressurized vessel is prepared, heatproof pressurized vessel inside has active clapboard [4] that its cavity can be divided into two independent part cavitys one [2] and cavity two [7], and cavity one [2] inner-wall surface is reserved with mount pad and the air pressure adjustment mouth [1] of well heater; Cavity two [7] inner-wall surface is reserved with mount pad, the air pressure adjustment mouth [8] of test part erecting stage; Active clapboard [4] adopts tinsel to make;
2) height-adjustable test part erecting stage [6], well heater [3] is prepared;
3) open heatproof pressurized vessel, take out active clapboard [4]; To test part [5] and test part erecting stage [6] is fixed in cavity two [7], regulates test part [5] to install position, makes test part [5] protrude 0mm��20mm by load face than active clapboard [4] mounting face; Well heater [3] is arranged in cavity one [2], it is ensured that well heater [3] can heat active clapboard [4]; Active clapboard [4] is installed, mutual airtight independence between cavity one [2] and cavity two [7] can be made;
4) metal vessel cavity one [2] and cavity two [7] air pressure is controlled respectively so that it is pressure reduction meets test requirements document, and starts well heater [3] and heat
Specific embodiment
1) a heatproof pressurized vessel is prepared, heatproof pressurized vessel inside has active clapboard [4] that its cavity can be divided into two independent part cavitys one [2] and cavity two [7], and cavity one [2] inner-wall surface is reserved with mount pad and the air pressure adjustment mouth [1] of well heater; Cavity two [7] inner-wall surface is reserved with mount pad, the air pressure adjustment mouth [8] of test part erecting stage; Active clapboard [4] adopts tinsel to make;
2) height-adjustable test part erecting stage [6], well heater [3] is prepared;
3) open heatproof pressurized vessel, take out active clapboard [4]; To test part [5] and test part erecting stage [6] is fixed in cavity two [7], regulates test part [5] to install position, makes test part [5] protrude 0mm��20mm by load face than active clapboard [4] mounting face; Well heater [3] is arranged in cavity one [2], it is ensured that well heater [3] can heat active clapboard [4]; Active clapboard [4] is installed, mutual airtight independence between cavity one [2] and cavity two [7] can be made;
4) metal vessel cavity one [2] and cavity two [7] air pressure is controlled respectively so that it is pressure reduction meets test requirements document, and starts well heater [3] and heat.
Claims (1)
1. the synchronous applying method of high temperature pressure, it is characterised in that, the method takes following step:
1) a heatproof pressurized vessel is prepared, heatproof pressurized vessel inside has active clapboard [4] that its cavity can be divided into two independent part cavitys one [2] and cavity two [7], and cavity one [2] inner-wall surface is reserved with mount pad and the air pressure adjustment mouth [1] of well heater; Cavity two [7] inner-wall surface is reserved with mount pad, the air pressure adjustment mouth [8] of test part erecting stage; Active clapboard [4] adopts tinsel to make;
2) height-adjustable test part erecting stage [6], well heater [3] is prepared;
3) open heatproof pressurized vessel, take out active clapboard [4]; To test part [5] and test part erecting stage [6] is fixed in cavity two [7], regulates test part [5] to install position, makes test part [5] protrude 0mm��20mm by load face than active clapboard [4] mounting face; Well heater [3] is arranged in cavity one [2], it is ensured that well heater [3] can heat active clapboard [4]; Active clapboard [4] is installed, mutual airtight independence between cavity one [2] and cavity two [7] can be made;
4) metal vessel cavity one [2] and cavity two [7] air pressure is controlled respectively so that it is pressure reduction meets test requirements document, and starts well heater [3] and heat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210528751.1A CN103868944B (en) | 2012-12-10 | 2012-12-10 | A kind of synchronous applying method of high temperature pressure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210528751.1A CN103868944B (en) | 2012-12-10 | 2012-12-10 | A kind of synchronous applying method of high temperature pressure |
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| CN103868944A CN103868944A (en) | 2014-06-18 |
| CN103868944B true CN103868944B (en) | 2016-06-01 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105547702B (en) * | 2015-12-10 | 2018-04-13 | 中国飞机强度研究所 | A kind of engine crankcase high temperature and pressure test device |
| CN113155894B (en) * | 2021-03-30 | 2023-06-20 | 中国飞机强度研究所 | Transparent material heat insulation performance test device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3945608B2 (en) * | 1999-12-09 | 2007-07-18 | 株式会社リガク | Sample container for thermal analysis and manufacturing method thereof |
| CN101086489A (en) * | 2006-06-09 | 2007-12-12 | 富准精密工业(深圳)有限公司 | Heat pipe performance inspection device |
| CN101556256A (en) * | 2009-05-11 | 2009-10-14 | 天津科技大学 | Dual-flat plate thermal conductivity coefficient measuring instrument of thermal insulation materials |
| CN201497714U (en) * | 2009-04-23 | 2010-06-02 | 中国飞机强度研究所 | Thermal protection test device capable of simulating height and pressure difference environment |
| CN102628818A (en) * | 2012-04-24 | 2012-08-08 | 天津大学 | Thermal conduction coefficient tester for single-plate guarded thermal plate method with automatic pressure regulator and thickness measuring device |
-
2012
- 2012-12-10 CN CN201210528751.1A patent/CN103868944B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3945608B2 (en) * | 1999-12-09 | 2007-07-18 | 株式会社リガク | Sample container for thermal analysis and manufacturing method thereof |
| CN101086489A (en) * | 2006-06-09 | 2007-12-12 | 富准精密工业(深圳)有限公司 | Heat pipe performance inspection device |
| CN201497714U (en) * | 2009-04-23 | 2010-06-02 | 中国飞机强度研究所 | Thermal protection test device capable of simulating height and pressure difference environment |
| CN101556256A (en) * | 2009-05-11 | 2009-10-14 | 天津科技大学 | Dual-flat plate thermal conductivity coefficient measuring instrument of thermal insulation materials |
| CN102628818A (en) * | 2012-04-24 | 2012-08-08 | 天津大学 | Thermal conduction coefficient tester for single-plate guarded thermal plate method with automatic pressure regulator and thickness measuring device |
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| CN103868944A (en) | 2014-06-18 |
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