CN106556539A - Test method TPS tested with flexible heater material - Google Patents
Test method TPS tested with flexible heater material Download PDFInfo
- Publication number
- CN106556539A CN106556539A CN201510633000.XA CN201510633000A CN106556539A CN 106556539 A CN106556539 A CN 106556539A CN 201510633000 A CN201510633000 A CN 201510633000A CN 106556539 A CN106556539 A CN 106556539A
- Authority
- CN
- China
- Prior art keywords
- heater
- tps
- flexible
- testpieces
- graphite fibre
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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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
Abstract
The invention provides the test method tested to TPS with flexible heater material, it is characterised in that comprise the following steps：Water cooled electrode is installed at flexible heater material two ends, flexible material heater is built；Flexible material heater and TPS testpieces are put into into the seal box full of nitrogen；Flexible material heater is laid on into the upper surface of TPS testpieces, face contact is kept, flexible material heater is powered and realizes the heating of TPS testpieces；The heat-proof quality of test TPS testpieces.
Description
Technical field
Belong to Flight Vehicle Structure thermal strength test field using flexible heater material heating TPS.
Background technology
In aircraft ground thermal strength test, heating technique is key technology therein, and conventional heating technique has quartz lamp at present
The heating techniques such as pipe radiant heating, resistance wire contact heating, high-temperature fuel gas Convective Heating.Wherein quartz burner radiation heating techniques
The characteristics of be that controllability is good, temperature rise is fast, temperature is high.Resistance wire contact heating has the features such as high heating-up temperature, stable performance.
High-temperature fuel gas Convective Heating temperature is high, and temperature rise is fast.Wherein quartz burner radiant heating temperature highest can reach 1200 DEG C, temperature rise
Highest can reach 100 DEG C/s.Resistance wire contact heating maximum temperature can reach 1000 DEG C, and this heating means temperature rise is slower,
Generally temperature rise is less than 10 DEG C/s.High-temperature fuel gas Convective Heating method is most fast one kind of temperature rise using temperature highest
Heating means, the maximum temperature of its heating is 1800 DEG C, transient heating.This several heating means use range is very wide at present, but
It is to have disadvantages that.Such as quartz burner maximum temperature rise is at present to 1200 DEG C, and the temperature field of heat run part is not very uniform.
The current maximum temperature of direct contact heater is 1000 DEG C, and high heating wire easily aoxidizes fusing to temperature again, similarly there is heating examination
Test part temperature field uneven.High-temperature fuel gas Convective Heating method controllability is poor.Flexible material heating means are a kind of at present new
Heating means, such as graphite fibre, heating, this kind of method maximum temperature can reach 2000 DEG C, realize in test chamber at present
57 DEG C/s of temperature rise rate, due to its fine and close fiber establishment, there is provided uniform temperature fields.
TPS experimental test heating means are varied, quartz burner, resistance wire, high-temperature fuel gas convection current.Will in order to reach TPS
The features such as more uniform temperature field, higher test temperature, faster temperature rise and higher controlling test precision for asking, need research
A kind of new heating means are realizing function above.Graphite fibre heater is a kind of preferably heating side of current TPS testing experiments
Method, which can provide more uniform temperature field, higher test temperature, higher control accuracy, and these advantages are tested for TPS
There is provided a kind of easily method of testing.
The content of the invention
It is an object of the invention to provide the test method tested to TPS with graphite fibre heater, this kind of method is by by stone
On TPS surfaces, energization graphite fibre realizes that TPS is heated to black fleece-laying.In whole heating process, in order to prevent high temperature ring
Border graphite fibre oxidation is serious, devises graphite fibre heater is placed in seal box and leads to the degree of oxidation that nitrogen is reduced.It is logical
Cross the high reliability that these methods ensure TPS graphite fibre thermal strength tests.
Test method TPS tested with flexible heater material, it is characterised in that comprise the following steps：
Water cooled electrode is installed at flexible heater material two ends, flexible material heater is built；
Flexible material heater and TPS testpieces are put into into the seal box full of nitrogen；
Flexible material heater is laid on into the upper surface of TPS testpieces, face contact is kept, real is powered to flexible material heater
The heating of existing TPS testpieces；
The heat-proof quality of test TPS testpieces.
Further,
Graphite fibre of the flexible heater material for cloth-like, flexible material heater are graphite fibre heater.
Further,
Insulant is coated with the upper surface of flexible material heater so that flexible material heater lower surface and TPS testpieces
Upper surface has close face contact.
Further,
Insulant is coated with the upper surface of graphite fibre heater so that graphite fibre heater lower surface and TPS testpieces
Upper surface has close face contact.
Further, it is 1300 DEG C to the heating-up temperature of TPS testpieces to graphite fibre heater.
Advantage using the method has：
1) adaptability of flexible heater material, designability are good, are adapted to flat test part, surface experimental part；
2) heating-up temperature field is uniform, and can achieve over 1200 DEG C of hot test；
3) leading to nitrogen in seal box can effectively reduce the degree of oxidation of flexible heater material graphite fibre；
4) flexible material heater can carry out high temperature, Hi-pot test simultaneously, such as graphite fibre can realize 1300 DEG C of high temperature,
Hi-pot test.
Description of the drawings
Fig. 1 TPS flexible heaters install test schematic diagram
Fig. 2 flexible heater pilot systems
Specific embodiment
The outstanding feature and advance of invention are expanded on further by specific embodiment.
Refering to Fig. 1 and Fig. 2, the test method tested to TPS with flexible heater material, it is characterised in that including following
Step：
Water cooled electrode is installed at flexible heater material two ends, flexible material heater is built；
Flexible material heater and TPS testpieces are put into into the seal box full of nitrogen；
Flexible material heater is laid on into the upper surface of TPS testpieces, face contact is kept, real is powered to flexible material heater
The heating of existing TPS testpieces；
The heat-proof quality of test TPS testpieces.
Graphite fibre of the flexible heater material for cloth-like, flexible material heater are graphite fibre heater.
Insulant is coated with the upper surface of graphite fibre heater so that graphite fibre heater lower surface and TPS testpieces
Upper surface has close face contact.
Refering to Fig. 2, this pilot system include graphite fibre heater, inflation system, power-supply system, data collecting system,
Control system, seal box, TPS testpieces.Graphite fibre heater and TPS testpieces are placed in seal box, wherein TPS
The effective dimensions of testpieces is 200mm × 200mm, is placed on the lower surface of graphite fibre heater.The upper surface of graphite fibre is put
Alumina fibre plate is put, five thermocouples are installed on alumina fibre plate.Effective heated dimensions of graphite fibre be 200mm ×
200mm.Graphite fibre heater and TPS are placed in seal box.
After whole TPS graphite fibres test system is installed, TPS graphite fibre heater testing experiments are proceeded by.Test
During beginning, to nitrogen is led in seal box, experimental test is proceeded by after nitrogen is full of whole seal box.
When testing experiment starts, power supply is supplied to graphite fibre voltage 28.5V, and graphite fibre constant temperature rises, when temperature reaches
During to 1300 DEG C, stop heating, proceed by temperature control, by temperature control at 1200 DEG C.
After the completion of test, thermo-electric couple temperature data shows, compared with traditional quartz burner, graphite fibre adds this heating means
Hot device uniform distribution of temperature field, temperature rise are very fast, and after more than 1000 DEG C, nitrogen environment reduces the oxidation rate of graphite fibre.
Claims (5)
1. test method TPS tested with flexible heater material, it is characterised in that comprise the following steps：
Water cooled electrode is installed at flexible heater material two ends, flexible material heater is built；
Flexible material heater and TPS testpieces are put into into the seal box full of nitrogen；
Flexible material heater is laid on into the upper surface of TPS testpieces, face contact is kept, flexible material heater is powered
Realize the heating of TPS testpieces；
The heat-proof quality of test TPS testpieces.
2. test method TPS tested with flexible heater material according to claim 1, it is characterised in that described
Graphite fibre of the flexible heater material for cloth-like, flexible material heater are graphite fibre heater.
3. test method TPS tested with flexible heater material according to claim 1, it is characterised in that
Insulant is coated with the upper surface of flexible material heater so that flexible material heater lower surface and TPS testpieces
Upper surface has close face contact.
4. test method TPS tested with flexible heater material according to claim 2, it is characterised in that
Insulant is coated with the upper surface of graphite fibre heater so that graphite fibre heater lower surface and TPS testpieces
Upper surface has close face contact.
5. test method TPS tested with flexible heater material according to claim 4, it is characterised in that
Graphite fibre heater is 1300 DEG C to the heating-up temperature of TPS testpieces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510633000.XA CN106556539A (en) | 2015-09-29 | 2015-09-29 | Test method TPS tested with flexible heater material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510633000.XA CN106556539A (en) | 2015-09-29 | 2015-09-29 | Test method TPS tested with flexible heater material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106556539A true CN106556539A (en) | 2017-04-05 |
Family
ID=58417107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510633000.XA Pending CN106556539A (en) | 2015-09-29 | 2015-09-29 | Test method TPS tested with flexible heater material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106556539A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110290603A (en) * | 2019-05-27 | 2019-09-27 | 中国飞机强度研究所 | A kind of flexible material heater and heating testing experiment method |
| CN114878199A (en) * | 2022-07-04 | 2022-08-09 | 中国飞机强度研究所 | Aerospace plane structure heat strength test system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2162067Y (en) * | 1993-08-09 | 1994-04-13 | 陈耀庭 | Carbon fiber paper heater |
| CN2582318Y (en) * | 2002-11-15 | 2003-10-22 | 程学礼 | Multi-functional, non-metal and super-thin type electric heating plate |
| CN2899365Y (en) * | 2006-04-26 | 2007-05-09 | 付成山 | Carbon-fibre felt electric heater |
| CN104768243A (en) * | 2015-04-07 | 2015-07-08 | 上海交通大学 | Graphite sheet electrical heating component and manufacturing method thereof |
-
2015
- 2015-09-29 CN CN201510633000.XA patent/CN106556539A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2162067Y (en) * | 1993-08-09 | 1994-04-13 | 陈耀庭 | Carbon fiber paper heater |
| CN2582318Y (en) * | 2002-11-15 | 2003-10-22 | 程学礼 | Multi-functional, non-metal and super-thin type electric heating plate |
| CN2899365Y (en) * | 2006-04-26 | 2007-05-09 | 付成山 | Carbon-fibre felt electric heater |
| CN104768243A (en) * | 2015-04-07 | 2015-07-08 | 上海交通大学 | Graphite sheet electrical heating component and manufacturing method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 秦强等: "温度对刚性陶瓷防热瓦隔热性能的影响", 《导弹与航天运载技术》 * |
| 秦强等: "辐射式TPS热防护有效性的试验研究", 《辐射式TPS热防护有效性的试验研究》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110290603A (en) * | 2019-05-27 | 2019-09-27 | 中国飞机强度研究所 | A kind of flexible material heater and heating testing experiment method |
| CN114878199A (en) * | 2022-07-04 | 2022-08-09 | 中国飞机强度研究所 | Aerospace plane structure heat strength test system |
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Application publication date: 20170405 |
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