CN107941848A - The apparatus and method for directly measuring block materials thermal barrier coating adiabatic temperature - Google Patents
The apparatus and method for directly measuring block materials thermal barrier coating adiabatic temperature Download PDFInfo
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- CN107941848A CN107941848A CN201710983649.3A CN201710983649A CN107941848A CN 107941848 A CN107941848 A CN 107941848A CN 201710983649 A CN201710983649 A CN 201710983649A CN 107941848 A CN107941848 A CN 107941848A
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Abstract
The present invention provides a kind of apparatus and method for directly measuring block materials thermal barrier coating adiabatic temperature, and wherein device is included with lower structure：Box type heater, smooth cuboid fireproof insulation brick, the hole penetrated through inside and outside insulating brick flat end face and stove, uncoated have the block materials, temperature thermocouple, fire resistant heat preserving cotton, the multichannel temperature time recorder source of the gas that have two flat end faces that the block materials of two flat end faces, one end have ceramic heat-barrier coating.Measure above-mentioned uncoated and cated two same substrates, with size block materials backwards to the planar ends temperature of heat source, the difference measured is thermal barrier coating adiabatic temperature.Thermal barrier coating of the present invention refers to the coating that can play heat-blocking action.Block materials of the present invention include metal material, carbon/carbon compound material, graphite material etc..Conventional method is compared, the method has the characteristics that measurement error is small, measurement cost is low, time of measuring is few, instrumentation and data processing are simple.
Description
Technical field
The present invention relates to a kind of apparatus and method for directly measuring block materials thermal barrier coating adiabatic temperature.It is of the present invention
Thermal barrier coating refers to the coating that can play heat-blocking action, it is mainly by ceramic material such as containing zirconium, aluminium, silicon, the oxide of boron, silication
Thing, carbonization, nitride etc. form.Block materials of the present invention are multiple including but not limited to following material such as metal material, carbon/carbon
The enhanced ceramic composite of condensation material, graphite material, continuous carbon fibre, the enhanced titanium alloy composite material of continuous carbon fibre,
Enhanced titanium alloy composite material of continuous carbofrax fibre etc..
Background technology
With the use of current high thrust-weight ratio aero-engine, the operating temperature of engine blade has brought up to 1600 DEG C of left sides
The right side, and the nickel-base high-temperature alloy material long-time service temperature used in engine blade is usually manufactured at 900 DEG C or so.It is although advanced
Air film cooling technology engine blade operating temperature can be further improved to nearly 400 DEG C, but still need to blade surface cover
One heat-insulated ceramic heat-barrier coating (Thermal Barrier Coatings abbreviation TBC), with further reduce high temperature alloy by
Hot temperature.High temperature alloy high-temperature oxydation speed can not only be so reduced, and prevents alloy mechanical property caused by excessive temperature
Decay.Mainly use plasma spray coating (Plasma Spraying abbreviation PS) and electro beam physics vapour deposition at present
(Electron-Beam Physical Vapor Deposition abbreviation EB-PVD) prepares ceramic thermal barrier in high-temperature alloy surface
Coating.200 μm are generally by their obtained coating layer thicknesses.Thermal barrier coating of the present invention refers to the painting that can play heat-blocking action
Layer, it is mainly such as made of ceramic material containing zirconium, aluminium, silicon, the oxide of boron, silicide, carbonization, nitride.
The heat-proof quality that conventional people evaluate high temperature alloy ceramic heat-barrier coating simply uses round-about way, i.e., using public affairs
Formula λ=α ρ CpMeasure the thermal conductivity λ (unit w/m.K) of ceramic coating.Wherein α is thermal diffusion coefficient (m2/ s), it is general using sharp
Light pulse method measures；P is the density (kg/m of coating3)；CpHold (J/kgK) for the constant pressure specific heat of coating, need to be by coating from high temperature
Alloy surface strips down, and is measured with differential scanning calorimetry (DSC).It will be apparent that gained is measured in three times by different instruments
Measurement error can accumulate three times so that larger error is presented in measurement result.Do not assimilate although this method can compare
The Heat insulation with ceramic coatings performance difference studied point, but cannot reflect the actual adiabatic temperature of coating.In addition, coating is heat-insulated
Temperature can change with external heat source temperature change, these values are extremely important to the practical application of coating, and the above method can not obtain
To this information.To solve above problem, the present invention provides one directly measure above-mentioned high temperature alloy thermal barrier coating it is actual every
The apparatus and method of hot temperature.Simply come above using high temperature alloy as a most typical example application for example, ability
Domain professional understands, in addition to high temperature alloy needs ceramic heat-barrier coating, for example various metal materials of other materials, carbon/carbon are multiple
The enhanced ceramic composite of condensation material, graphite material, continuous carbon fibre, the enhanced titanium alloy composite material of continuous carbon fibre,
Enhanced titanium alloy composite material of continuous carbofrax fibre etc. is likely to use thermal barrier coating, can so mitigate these materials
Heating temperature so that these material oxidation speed substantially reduce, while avoid their mechanical properties from declining because of excessive temperature
Subtract.The present disclosure applies equally to the thermal barrier coating adiabatic temperature measurement of these above-mentioned materials.
The content of the invention
The present invention provides a kind of apparatus and method for directly measuring block materials thermal barrier coating adiabatic temperature.With traditional survey
The thermal conductivity λ methods of amount coating are compared, and the method for the present invention has the advantage that：(1) since the method for the present invention pendulous frequency only has one
Secondary, measurement error is low compared with conventional method；(2) since measurement temperature technology relatively measures thermal diffusion coefficient α and constant pressure specific heat holds Cp
Technology is more ripe and accurate, therefore measurement result is more relatively reliable than conventional method；(3) it is once measurable to obtain adiabatic temperature meeting
With external heat source temperature change, this is that conventional method can not be realized；(4) this device is once measurable obtains multiple thermal boundarys paintings
The adiabatic temperature of layer sample.(5) pendulous frequency of the present invention is few, and time of measuring is substantially reduced compared with conventional method；(6)) equipment is simple,
Measurement cost is low compared with conventional method；(7) instrumentation of the present invention is simple, data processing is simple, and method is easy to learn, is easy to extensive
Promote；(8) variation tendency of the adiabatic temperature with heat source temperature can once be obtained.
The device for directly measuring block materials thermal barrier coating adiabatic temperature of the present invention, it is characterised in that including following knot
Structure：Box type heater (1), smooth cuboid fireproof insulation brick (2), penetrate through inside and outside insulating brick flat end face and stove
Hole (3), uncoated there are the regular shape block materials (4) of two horizontal end faces, an only water surface to have thermal barrier coating
Have the regular shape block materials (5) of two horizontal end faces, temperature thermocouple (6), fire resistant heat preserving cotton (7), multichannel temperature-when
Between recorder (9), wherein described hole (3) perforation direction size and block materials (4) and the ruler of (5) two horizontal end faces
Very little essentially the same, the thermal barrier coatings of the block materials (5) is only wherein on a horizontal end face, two block materials (4) and
(5) it is respectively put into along horizontal end face vertical line direction on two insulating bricks in hole (3), and has thermal boundary painting on block materials (5)
Facing to stove endogenous pyrogen, described two thermocouple (6) metal temperature probes are inserted into hole (3) respectively the horizontal ends of layer outside stove
Be in close contact with two block materials (4) and (5) backwards to the horizontal end face of heat source, the other end of two thermocouples (6) respectively and
The same multichannel temperature-time recorder (9) is connected, to record the temperature that thermocouple measures, in described hole (3)
Fill up fire resistant heat preserving cotton (7), fire resistant heat preserving cotton (7) is rolled in around thermocouple (6), and tightly get lodged in block materials (4) and
(5) coating that can play heat-blocking action is referred to backwards to one end of heat source, thermal barrier coating of the present invention, it is mainly by ceramic material
Such as included but unlimited containing zirconium, aluminium, silicon, the oxide of boron, silicide, carbonization, nitride composition, block materials of the present invention
In the following material such as enhanced ceramic composite of metal material, carbon/carbon compound material, graphite material, continuous carbon fibre, continuously
Enhanced titanium alloy composite material of high purity carbon fiberreinforced titanium alloy composite material, continuous carbofrax fibre etc..
In one embodiment of the invention, following one or more components are further included：To extend temperature thermocouple (6)
Length and increased thermocouple extension line (8), its one end and thermocouple (6) are connected, the other end and multichannel temperature-time note
Record instrument (9) is connected；Once to measure multiple block materials (5) similar samples for having thermal barrier coating at the same time, increase on insulating brick (2)
Add a hole and its matching component for similar hole (3).
In one embodiment of the invention, wherein the fireproof insulation brick (2) is located at the box type heater (1) stove
Doorway, and fire door is filled up, prevent furnace heat from coming out.
In one embodiment of the invention, wherein uncoated block materials (4) and cated block during measurement
Material (5) is located in hole (3) close to the termination of stove endogenous pyrogen, and the oriented hole planar ends center position in this termination has phase if necessary
With the pico- protrusion of the very thin thickness of size, it can prevent block materials (4) and (5) from falling into stove.
In one embodiment of the invention, wherein for ensure described two thermocouples (6) probe respectively with two blocks
Body material (4) and (5) are in close contact backwards to the horizontal plane end of heat source, are done respectively in the two horizontal plane centers if necessary one small
Thermocouple (6) metal probe, can be inserted into by hole just.
In one embodiment of the invention, wherein multichannel temperature-time recorder (9) can record multichannel heat at the same time
Galvanic couple temperature with time of measuring change, and if necessary can will record data transfer to computer.It can lead to if necessary before measurement
Cross multichannel temperature-time recorder and carry function, the value that multi-channel thermocouple measures under same heat source temperature is done into a calibration,
The measurement error that the factor such as difference is brought between elimination thermocouple.
In one embodiment of the invention, cated block materials (5) are compared with uncoated block materials (4) removes
Have more outside thin layer ceramic heat-barrier coating, the material therefor and size of remaining block materials part be just the same.Block material
Material (4) is regular cylinder, cuboid, a hemisphere etc., it has two parallel horizontal planes, between the two planes
Distance preferably in more than 2mm.
In one embodiment of the invention, the smooth cuboid fireproof insulation brick (2) is in stove inward-outward direction
Thickness is preferably in more than 50mm.
In one embodiment of the invention, cated block materials (5) only have the part or all of coating directly sudden and violent
It is exposed in heat source, block materials (5) remainder isolation heat source.At the same time, uncoated block materials (4) are exposed to heat source
In shape and size and the above-mentioned block materials (5) of part be exposed to as the part in heat source.
A kind of method for directly measuring high temperature alloy thermal barrier coating adiabatic temperature of the present invention, it is characterised in that including
Following main contents：For device described above, using measuring uncoated above-mentioned block at the same time in this device measurement process
Backwards to the planar ends temperature of heat source, both temperature gaps measured are that thermal boundary applies for material (4) and cated block materials (5)
Layer adiabatic temperature.One of its adiabatic temperature measuring method key is to be to fill up fire resistant heat preserving cotton (7) in hole (3), when
In order to keep the above-mentioned temperature that measures to be influenced from ambient temperature, second, in order to fix temperature thermocouple (6) and above-mentioned block
Material (4) and the position of (5), make the contact position between temperature thermocouple (6) and block materials (4) or (5) in measurement process
In do not change；The two of the method key are cated block materials (5) except cated part is directly exposed to heat
Outside in source, remaining block materials (5) part isolation heat source.
Below in conjunction with the accompanying drawings 1, the present invention will be described in detail directly measure block materials thermal barrier coating adiabatic temperature device and
A kind of embodiment of method, but this merely for the sake of illustrate the purpose of the present invention rather than limitation the scope of the invention.This
Field technology personnel are readily appreciated that upon reading the present specification, the present invention can have other embodiments or its etc.
Valency embodiment, and these are all in the application scope of the claims.
Brief description of the drawings
Fig. 1 shows that one kind of the apparatus and method of directly measurement block materials thermal barrier coating adiabatic temperature of the invention is specific
The schematic diagram of embodiment.
Fig. 2 gives one embodiment of directly measurement high temperature alloy thermal barrier coating adiabatic temperature apparatus and method of the invention
Experimental result.
Embodiment
As shown in Figure 1, the present invention directly measures a kind of specific implementation of the device of block materials thermal barrier coating adiabatic temperature
Mode is included with lower structure：Box type heater 1, smooth cuboid fireproof insulation brick 2, perpendicular to insulating brick flat end face and
The hole 3 of the inside and outside perforation of stove, uncoated have the regular shape block materials 4 of two horizontal end faces, an only water surface to have thermal boundary
The regular shape block materials 5, temperature thermocouple 6, fire resistant heat preserving cotton 7, the thermocouple extension line that have two horizontal end faces of coating
8th, multichannel temperature-time recorder 9.
The effect of box type heater 1 is to provide a smooth regular cube burner hearth that can be embedded in insulating brick, by burner hearth
The heating element that rule is placed provides the heat source of uniformity of temperature profile to stove gate.In box type heater 1 temperature by room temperature to
3000 DEG C of high temperature, heating element may include it is following in one or more：Resistance wire, Si-Mo rod, molybdenum filament, heating graphite element
Deng.The selection of specific heating element is depending on required in-furnace temperature.
Smooth cuboid fireproof insulation brick 2 mainly plays heat-blocking action, it mainly prevents heat in burner hearth from being transmitted to
Block materials 4 and 5 are stated backwards to one end of heat source, also prevent the transmission of heat in two different holes.2 material of fireproof insulation brick can
To be the relatively low refractory material of the thermal conductivity ratios such as aluminium oxide, zirconium oxide, the structure of brick is preferably hollow, because in general
Hollow brick is better than solid brick insulation effect.
The effect of hole 3 penetrated through inside and outside insulating brick flat end face and stove mainly places above-mentioned high temperature alloy block
4 and 5 so that the smooth end thereof contacts heat source of block materials, other end contact thermography thermocouple.3 shape of cross section of hole is general
Be circular, other shapes can also be made, its size with above-mentioned block materials 4 as 5 flat end face shapes, or somewhat
It is larger so that block materials can be put into.Above-mentioned block materials 4 and 5 are placed in hole (3) close to the termination of stove endogenous pyrogen, this
Termination has the pico- protrusion of the very thin thickness of identical size to hole center position, it can prevent block materials 4 and 5 from falling into stove
It is interior.
Uncoated have a block materials 4 of two horizontal end faces and end face has two flat end faces of having of thermal barrier coating
The effect of block materials 5 is mainly the adiabatic temperature of measurement ceramic heat-barrier coating.The material therefor of two block materials 4 and 5
Must be just the same with size.The block materials including but not limited to following material for example metal material, carbon/carbon compound material,
The enhanced ceramic composite of graphite material, continuous carbon fibre, the enhanced titanium alloy composite material of continuous carbon fibre, continuous carbonization
Enhanced titanium alloy composite material of silica fibre etc..Most typical block materials of the invention signified are high temperature alloys, it can be with
Ni-based, cobalt-based, iron-based or other more advanced high temperature alloys, such as 950 DEG C can long-term work ni-base wrought superalloy
GH4169,1100 DEG C can long-term work nickel-base cast superalloy DD402 etc..
The effect of temperature thermocouple 6 is the end face temperature in order to measure block materials 4 and 5 backwards to heat source.The pass of measurement accuracy
Key is one to be to ensure that the contact position of thermocouple 6 and block materials 4 and 5 backwards to the end face of heat source does not become in measurement process
Change, second, function need to be carried by multichannel temperature-time recorder before measuring, by multi-channel thermocouple at the same temperature
The value measured does a calibration, eliminates the measurement error that the factor such as difference is brought between thermocouple.6 type of temperature thermocouple can basis
Measurement temperature scope selects K-type, S types, Type B etc..
The effect of fire resistant heat preserving cotton 7 one is to be influenced to keep above-mentioned temperature thermocouple 6 to measure temperature from ambient temperature,
Second, for the position of fixed temperature thermocouple 6 and above-mentioned block materials 4 and 5, make the contact position between them in measurement process
In do not change.Fire resistant heat preserving cotton 7 can be alumina fibre, asbestos fibre, sieve and silica-sesquioxide ceramic fibre etc., preferably and
Refractory brick material is consistent.
Thermocouple extension line 8 effect simply extend 6 wiring of temperature thermocouple so that thermocouple 6 can be linked to multichannel temperature-
On time recorder 9.Since S types and Type B thermocouple are expensive, thermocouple wire can not be usable very long, at this moment must just use heat
Galvanic couple extended line 8.Different type temperature thermocouple, its thermocouple extension line type are also different.
The effect of channel temperature-time recorder 9 is to record the change of temperature that multi-route measuring temperature thermocouple measures with the time at the same time
Change.The value that it is also equipped with the same temperature measuring multi-channel thermocouple does a calibration, eliminates the factor such as difference between thermocouple
The function for the measurement error brought.
Embodiment
The following examples are used for the use for illustrating apparatus of the present invention and method.
Zirconia-based ceramic powder will be made by oneself by plasma spray coating in one plane of GH4169 high temperature alloy regular cylindricals body
On the polished surface at end.Cylinder diameter is 30mm, is highly 10mm.Before ceramic coated powder, this planar ends is simply used
800 mesh diamond dust have done polishing treatment, do not spray binder alloy layer, this ceramic coating is exactly thermal barrier coating.With other one
A uncoated the same GH4169 high temperature alloy regular cylindrical bodies are used for this experiment.
It is 200mm that two pieces of aluminium oxide hollow brick stacked on top of one another are spliced into width, a height of 200mm, the rule that thickness is 70mm
It, is just filled up the fire door of a box type heater by smooth cuboid hollow brick along horizontal breadth direction, and is stretched into stove
The depth of 60mm.One block of hollow brick below digs out an a diameter of 30mm on the outer transverse plane of heat source with circular cutout device
Depth is the straight barrel type circular hole of 66mm, but is dug out with circular cutout device the other end of circular hole (close to heat source side) a diameter of
The circular hole of 26mm, hole depth are 4mm.The circular hole of the two different-diameters has same center line, and in centerline direction
It is perforation, such a complete circular hole of the end with projection portion is just made.The hole as two is made altogether,
The two holes in the same horizontal line, are symmetrically positioned in the center of brick, the edge in the two holes is recently at a distance of 20mm.
Stove is warming up to 300 DEG C, two Type B temperature thermocouples are inserted into above-mentioned two circular hole respectively outside stove,
Thermo-electric metal probe positions are located just at circular hole end, with 1.5 meters long of thermocouple extension lines by temperature thermocouple and one
Platform multichannel temperature-time recorder is connected, so as to measure in-furnace temperature., will if the two measured temperatures are different
Itself function key of temperature in use-time recorder is adjusted so that both measured temperatures are consistent, so as to complete to thermocouple error
Correction.
Two thermocouples are taken out out of cavity, then by said one without thermal barrier coating, one has the diameter of thermal barrier coating all
For 30mm, thickness is that two GH4169 high temperature alloy block flat ends of 10mm fill in two holes respectively from away from one end of heat source
In hole and hole end-boss part is rested on, alloy planar ends are away from hole 4mm.Wherein have the one of thermal barrier coating facing to heat source.
The two high temperature alloy blocks have an a diameter of 1.5mm away from the end face center of heat source, and depth is the drilling of 4mm, can just
The firmly metal probe of one Type B temperature thermocouple of insertion.Two Type B temperature thermocouple metal probes are inserted into the two respectively
In the drilling of alloy block, then direction is inserted in the two holes outside stove with asbestos fibre, so that high temperature alloy block and thermometric is warm
Galvanic couple position is fixed so that both contact points do not change during whole thermometric.Then by furnace temperature in 400 minutes
By 300 DEG C of temperature programmings to 1040 DEG C (heating rate is about 1.9 DEG C/min), and when 1040 DEG C of insulations 3 are small, by multichannel
Temperature-time recorder records two high temperature alloy deblocking temperatures that this process measures with the change of time of measuring, as a result presents
In fig. 2.As shown in Figure 2, when 3 is small in insulating process, uncoated high temperature alloy deblocking temperature is always 905 DEG C, and has heat
The high temperature alloy deblocking temperature of barrier coating is maintained at 801 DEG C or so, therefore adiabatic temperature remains at 104 DEG C or so.In addition by
Fig. 2 is understood, when when uncoated high temperature alloy temperature is 504 DEG C, 618 DEG C, 738 DEG C, 905 DEG C, thermal barrier coating adiabatic temperature divides
Wei not be 44 DEG C, 72 DEG C, 94 DEG C, 104 DEG C, therefore, thermal barrier coating adiabatic temperature increases and increases with heat source temperature.
Claims (10)
1. a kind of device for directly measuring block materials thermal barrier coating adiabatic temperature, it is characterised in that including with lower structure：It is box
Heating furnace (1), smooth cuboid fireproof insulation brick (2), the hole penetrated through inside and outside insulating brick flat end face and stove
(3), it is uncoated to there is what the regular shape block materials (4) of two horizontal end faces, an only water surface had a thermal barrier coating to have two
Regular shape block materials (5), temperature thermocouple (6), fire resistant heat preserving cotton (7), the multichannel temperature-time record of horizontal end face
The size and the size of block materials (4) and (5) two horizontal end faces of instrument (9), wherein described hole (3) in perforation direction are basic
Equally, the thermal barrier coating of the block materials (5) is only wherein on a horizontal end face, and two block materials (4) and (5) are along water
Planar end surface vertical line direction is respectively put on two insulating bricks in hole (3), and has the level of thermal barrier coating on block materials (5)
End face towards stove endogenous pyrogen, described two thermocouple (6) metal temperature probes be inserted into outside stove in hole (3) respectively with two blocks
Body material (4) and (5) are in close contact backwards to the horizontal end face of heat source, the other ends of two thermocouples (6) respectively with same institute
State multichannel temperature-time recorder (9) to be connected, to record the temperature that thermocouple measures, fire resisting is filled up in described hole (3)
Heat-preservation cotton (7), fire resistant heat preserving cotton (7) are rolled in around thermocouple (6), and tightly get lodged in block materials (4) and (5) backwards to heat source
One end, thermal barrier coating of the present invention refers to the coating that can play heat-blocking action, it mainly by ceramic material as containing zirconium, aluminium,
Silicon, the oxide of boron, silicide, carbonization, nitride etc. form, and block materials of the present invention are including but not limited to following material
Such as metal material, carbon/carbon compound material, graphite material, the enhanced ceramic composite of continuous carbon fibre, continuous carbon fibre enhancing
Enhanced titanium alloy composite material of Type Titanium Alloy composite material, continuous carbofrax fibre etc..
2. described in claim 1 directly measure block materials thermal barrier coating adiabatic temperature device, further include following one or
Multiple components：Increased thermocouple extension line (8), its one end and thermocouple (6) phase for extension temperature thermocouple (6) length
Connection, the other end and multichannel temperature-time recorder (9) are connected；Once to measure multiple block materials for having thermal barrier coating at the same time
Expect (5) similar sample, increase the hole and its matching component of multiple similar holes (3) on insulating brick (2).
3. the device for directly measuring block materials thermal barrier coating adiabatic temperature described in claim 1 or 2, wherein the fire resisting is protected
Warm brick (2) is located at the box type heater (1) stove gate, and fills up fire door, prevents furnace heat from coming out.
4. the device for directly measuring block materials thermal barrier coating adiabatic temperature described in claim 1 or 2, when measurement, are uncoated
Block materials (4) and cated block materials (5) are located in hole (3) close to the termination of stove endogenous pyrogen, if necessary this termination
Oriented hole planar ends center position has the pico- protrusion of the very thin thickness of identical size, it can prevent block materials (4) and (5)
Fall into stove.
5. the device for directly measuring block materials thermal barrier coating adiabatic temperature described in claim 1 or 2, wherein described to ensure
Two thermocouple (6) probes are in close contact with two block materials (4) and (5) backwards to the horizontal plane end of heat source respectively, if necessary
A duck eye is done respectively in the two horizontal plane centers, thermocouple (6) metal probe can be inserted into just.
6. the device for directly measuring block materials thermal barrier coating adiabatic temperature described in claim 1 or 2, wherein multichannel temperature
Degree-time recorder (9) can record change of the multi-channel thermocouple temperature with time of measuring at the same time, and can will record number if necessary
According to being delivered to computer.Function can be carried by multichannel temperature-time recorder if necessary before measurement, multi-channel thermocouple is existed
The value measured under same heat source temperature does a calibration, eliminates the measurement error that the factor such as difference is brought between thermocouple.
7. the device for directly measuring block materials thermal barrier coating adiabatic temperature described in claim 1 or 2, cated block material
Material (5) is compared in addition to having more thin layer ceramic heat-barrier coating with uncoated block materials (4), remaining block materials part
Material therefor and size are just the same.Block materials (4) are regular cylinder, cuboid, a hemisphere etc., it has two
The distance between parallel horizontal plane, the two planes are preferably in more than 2mm.
8. the device for directly measuring block materials thermal barrier coating adiabatic temperature described in claim 1 or 2, described smooth rectangular
Body fireproof insulation brick (2) stove inward-outward direction thickness preferably in more than 50mm.
9. the device for directly measuring block materials thermal barrier coating adiabatic temperature described in claim 1 or 2, cated block material
Material (5) only has part or all of coating to be directly exposed in heat source, block materials (5) remainder isolation heat source.At the same time,
The shape and size for the part that uncoated block materials (4) are exposed in heat source are exposed to heat source with above-mentioned block materials (5)
In part as.
A kind of 10. method for directly measuring high temperature alloy thermal barrier coating adiabatic temperature, it is characterised in that including following main contents：
For claim 1-8 described devices, using uncoated above-mentioned block materials (4) are measured in this device measurement process at the same time
Planar ends temperature with cated block materials (5) backwards to heat source, both temperature gaps measured are that thermal barrier coating is heat-insulated
Temperature.One of its adiabatic temperature measuring method key is to be to fill up fire resistant heat preserving cotton (7) in hole (3), first, in order to protect
Hold the above-mentioned temperature that measures influences from ambient temperature, second, in order to fix temperature thermocouple (6) and above-mentioned block materials (4)
(5) position, makes the contact position between temperature thermocouple (6) and block materials (4) or (5) not occur in measurement process
Change；The two of the method key are in addition to cated block materials (5) are directly exposed in heat source except cated part,
Remaining block materials (5) part isolation heat source.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112932201A (en) * | 2021-03-09 | 2021-06-11 | 重庆交通大学 | Glass material's show stand |
| CN113804724A (en) * | 2021-09-29 | 2021-12-17 | 中北大学 | Method for testing heat insulation performance of thermal protection ceramic coating |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102565119A (en) * | 2010-12-14 | 2012-07-11 | 中国航空工业集团公司沈阳发动机设计研究所 | Method for measuring cooling effect and thermal insulation effect of turbine blade with thermal barrier coating |
| CN103592329A (en) * | 2013-10-24 | 2014-02-19 | 西安交通大学 | Method for testing heat insulation temperature of thermal barrier coating |
| CN104777187A (en) * | 2014-12-05 | 2015-07-15 | 襄阳航泰动力机器厂 | Thermal barrier coating heat insulation performance testing device |
| CN104792819A (en) * | 2015-04-16 | 2015-07-22 | 东方电气集团东方汽轮机有限公司 | Heat barrier coating heat insulation effect testing device for fuel machine |
| CN106324028A (en) * | 2016-10-22 | 2017-01-11 | 湖南省冶金材料研究院 | Testing device and testing method for determining thermal insulation effect of thermal barrier coating |
-
2017
- 2017-10-20 CN CN201710983649.3A patent/CN107941848A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102565119A (en) * | 2010-12-14 | 2012-07-11 | 中国航空工业集团公司沈阳发动机设计研究所 | Method for measuring cooling effect and thermal insulation effect of turbine blade with thermal barrier coating |
| CN103592329A (en) * | 2013-10-24 | 2014-02-19 | 西安交通大学 | Method for testing heat insulation temperature of thermal barrier coating |
| CN104777187A (en) * | 2014-12-05 | 2015-07-15 | 襄阳航泰动力机器厂 | Thermal barrier coating heat insulation performance testing device |
| CN104792819A (en) * | 2015-04-16 | 2015-07-22 | 东方电气集团东方汽轮机有限公司 | Heat barrier coating heat insulation effect testing device for fuel machine |
| CN106324028A (en) * | 2016-10-22 | 2017-01-11 | 湖南省冶金材料研究院 | Testing device and testing method for determining thermal insulation effect of thermal barrier coating |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112932201A (en) * | 2021-03-09 | 2021-06-11 | 重庆交通大学 | Glass material's show stand |
| CN113804724A (en) * | 2021-09-29 | 2021-12-17 | 中北大学 | Method for testing heat insulation performance of thermal protection ceramic coating |
| CN113804724B (en) * | 2021-09-29 | 2024-03-29 | 中北大学 | Method for testing heat insulation performance of thermal protection ceramic coating |
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