CN109269877A - A kind of ultra-temperature mechanical performance test high temperature furnace and its heating means - Google Patents
A kind of ultra-temperature mechanical performance test high temperature furnace and its heating means Download PDFInfo
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- CN109269877A CN109269877A CN201811299208.2A CN201811299208A CN109269877A CN 109269877 A CN109269877 A CN 109269877A CN 201811299208 A CN201811299208 A CN 201811299208A CN 109269877 A CN109269877 A CN 109269877A
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 131
- 238000011056 performance test Methods 0.000 title claims abstract description 27
- 238000009413 insulation Methods 0.000 claims abstract description 152
- 238000012360 testing method Methods 0.000 claims abstract description 38
- 238000000034 method Methods 0.000 claims abstract description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 64
- 229910002804 graphite Inorganic materials 0.000 claims description 64
- 239000010439 graphite Substances 0.000 claims description 64
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 29
- 230000001936 parietal effect Effects 0.000 claims description 28
- 238000001816 cooling Methods 0.000 claims description 12
- 239000000498 cooling water Substances 0.000 claims description 6
- 230000001681 protective effect Effects 0.000 claims description 6
- 229920001342 Bakelite® Polymers 0.000 claims description 4
- 230000004308 accommodation Effects 0.000 claims description 4
- 239000004637 bakelite Substances 0.000 claims description 4
- 206010037660 Pyrexia Diseases 0.000 claims description 3
- 238000004321 preservation Methods 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- 238000009738 saturating Methods 0.000 claims 1
- 239000007770 graphite material Substances 0.000 abstract description 7
- 238000012546 transfer Methods 0.000 abstract description 4
- 239000007789 gas Substances 0.000 description 12
- 230000000694 effects Effects 0.000 description 5
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 5
- 229910052721 tungsten Inorganic materials 0.000 description 5
- 239000010937 tungsten Substances 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 206010033546 Pallor Diseases 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 210000003746 feather Anatomy 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
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- 238000007789 sealing Methods 0.000 description 1
Classifications
-
- 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
- G01N3/02—Details
-
- 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 present invention relates to a kind of methods that mechanical test technical field more particularly to ultra-temperature mechanical performance are tested high temperature furnace and heated in inert atmosphere to part to be measured using high temperature furnace.Wherein, ultra-temperature mechanical performance tests high temperature furnace, there are two the heating parts of the graphite material of semi-circular cylindrical for tool, and two heating parts be separately positioned in furnace body portion and furnace body door on, in the heat protection screen for being provided with shape and matching of the outside coaxial spaced of each heating part, when being closed the furnace body door, first heating part and the second heating part are oppositely arranged the structure to form an approximate cylinder, part to be measured is between the first heating part and second heating part, first heating part and second heating position are between the first insulation portion and the second insulation portion, it can effectively prevent heat transfer, 800 DEG C to 2800 DEG C of temperature is provided, and the heating part and heat protection screen service life of graphite material are longer, advantage of lower cost, and heating part, heat protection screen is separate installment, it replaces and easy to maintain.
Description
Technical field
The present invention relates to mechanical test technical field more particularly to a kind of ultra-temperature mechanical performance test high temperature furnace and utilizations
High temperature furnace is under an inert atmosphere to the method for part to be measured heating.
Background technique
With the development of heat-resisting material technology, higher temperature requirements are proposed to mechanical behavior under high temperature measuring technology,
The application field of high-temperature mechanics measuring technology is also more extensive.
Country's material at high temperature Mechanics Performance Testing high temperature service at present, test temperature is at 1700 DEG C or more usually in vacuum
Or carried out under inert atmosphere, common heating method: first is that being carried out using the heating method to sample direct-electrifying, this mode
It is only used for conductive material, it is difficult to solve the mechanical behavior under high temperature test problem of non-conducting material, and sample direct-electrifying band
Influence of the Electroplastic come to material mechanical performance there is no specific conclusion.Second is that based on heating element of tungsten and tungsten heat screen
High temperature furnace all-radiant furnace solves, and tungsten furnace maximum operation (service) temperature can only be to 2000 DEG C, and heating element of tungsten and tungsten heat screen are due to gold
Belonging to crystal form variation, service life is short at high temperature with swell increment bring greatly, and the high problem of maintenance cost highlights.
Summary of the invention
The object of the present invention is to provide a kind of ultra-temperature mechanical performances to test high temperature furnace, is asked at least solving above-mentioned one
Topic.
To achieve the goals above, the present invention provides a kind of ultra-temperature mechanical performances to test high temperature furnace, comprising:
Opposite opened furnace body, the opposite opened furnace body include furnace body portion and furnace body door, the furnace body door and the furnace body portion
Side is hinged；
Heater, including the first heating part being arranged in inside the furnace body portion and be arranged on the furnace body door second
Heating part, first heating part and second heating part are the graphite tube wall of semi-circular cylindrical, in each graphite-pipe
Along being axially arranged with the slit through graphite tube wall one end on wall, by perforative one end, the slit is by the graphite-pipe
Wall is divided into the two parts at interval, and each section graphite tube wall passes through a graphite electrode respectively and connect with a water cooled electrode,
Wherein, the one end for two water cooled electrodes connecting with first heating part passes through the furnace body portion, and exhausted with the furnace body portion
Edge connection；The one end for two water cooled electrodes being connect with second heating part pass through the furnace body door, and with the furnace body door
Insulation connection；
Heat protection screen, including the first insulation portion and the second insulation portion, first insulation portion and second insulation portion are
Semi-circular cylindrical, wherein first insulation portion is coaxial and what is be spaced is set on the outside of first heating part, second heat preservation
Portion is coaxial and what is be spaced is set on the outside of second heating part；
When being closed the furnace body door, first heating part and second heating part are oppositely arranged, and part to be measured is located at
Between first heating part and second heating part, first heating part and second heating position are in described first
Between insulation portion and second insulation portion.
Preferably, first insulation portion is identical with the second insulation portion structure, is followed successively by the first graphite from inside to outside
Parietal layer, the first graphite carpet veneer, the second graphite parietal layer, the second graphite carpet veneer and third graphite parietal layer.
Preferably, ultra-temperature mechanical performance tests high temperature furnace further include:
Upper insulation cover, including insulation cover on insulation cover and second on first；
Lower insulation cover, including the first lower insulation cover and the second lower insulation cover；
Wherein, insulation cover is located at the upper end of first insulation portion on described first, and the described first lower insulation cover is located at institute
The lower end of the first insulation portion is stated, to close off the top and bottom of first insulation portion, insulation cover is located on described second
The upper end of second insulation portion, the described second lower insulation cover is located at the lower end of second insulation portion, described to close off
The top and bottom of second insulation portion；
Insulation cover on described first, insulation cover on described second, the first lower insulation cover and the second lower insulation cover it is interior
Side is respectively equipped with recess portion, and when being closed the furnace body door, insulation cover is connected to each other on insulation cover and described second on described first,
Two recess portions form the first card hole of fixture, and the described first lower insulation cover and the second lower insulation cover are connected to each other, two recess portion
Form the second card hole of fixture.
Preferably, there is gap between the lower end of first heating part and the first lower insulation cover；
There is gap between the lower end of second heating part and the second lower insulation cover.
Preferably, across two water cooled electrodes in the furnace body portion and the furnace body portion, and the furnace body is passed through
It between two water cooled electrodes and the furnace body door of door is insulated by bakelite.
Preferably, the downside in the furnace body portion is equipped with independent measuring device accommodating chamber, the measuring device accommodating chamber packet
Receiving portion is included, for accommodating mechanics deformation measuring device, the side of described accommodation section is additionally provided with the accommodating chamber door that is hinged.
Preferably, the furnace body door is equipped with transparent observation window, and the second insulation portion is equipped with the sight with the furnace body door
Window is examined with respect to observation panel, the observation panel is opposite with the slit on the second heating part.
Preferably, the furnace body portion and furnace body door are Double water-cooled protecting wall structure, are equipped with water channel, the water channel in furnace wall
It is connect with water-cooling system.
Preferably, ultra-temperature mechanical performance test high temperature furnace further includes pumped vacuum systems and plenum system, described to vacuumize
System and plenum system are mounted in the furnace body portion, are respectively used to vacuumize in the furnace body portion and be sent into the furnace body portion
Enter gas.
It is right under an inert atmosphere using a kind of above-mentioned ultra-temperature mechanical performance test high temperature furnace that the present invention also provides a kind of
The method of part heating to be measured, used mechanical behavior under high temperature test high temperature furnace, and furnace body portion and furnace body door are Double water-cooled
Protecting wall structure, wall is interior to be equipped with water channel, which connect with water-cooling system, also has pumped vacuum systems and plenum system, uses
In vacuumizing in the furnace body portion and being sent into gas into the furnace body portion, the specific method is as follows:
Ultra-temperature mechanical performance test high temperature furnace is integrated on testing machine for mechanical properties, the mechanical property test
The fixture of machine passes through the furnace body portion, and when furnace body door closure, the part to be measured clamped by the fixture is located at described
Between first heating part and second heating part；
The pumped vacuum systems is opened, the inside of ultra-temperature mechanical performance test high temperature furnace is vacuumized；
When the inside of ultra-temperature mechanical performance test high temperature furnace, which reaches certain vacuum, to be spent, supplying gas described in opening is
System is sent into inert protective gas to the inside of ultra-temperature mechanical performance test high temperature furnace, makes the ultra-temperature mechanical performance
The pressure for testing the inert protective gas of the inside of high temperature furnace has certain positive pressure relative to atmospheric pressure outside high temperature furnace；
Water-cooling system is opened, makes to realize cooling water circulation in Double water-cooled protecting wall structure；
With the energetic start up heating power supply of the 10%-20% of heating power supply maximum power, then increase power gradually；
Reach power needed for being increased to target temperature；
After continuous heating makes the part to be measured reach target temperature, target temperature is kept.
Above-mentioned technical proposal of the invention has the advantages that (1) ultra-temperature mechanical performance test provided by the invention is high
Warm furnace, there are two the heating parts of the graphite material of semi-circular cylindrical for tool, and two heating parts are separately positioned in furnace body portion and furnace
On body door, in the heat protection screen for being provided with shape and matching of the outside coaxial spaced of each heating part, when the closure furnace body door
When, first heating part and second heating part are oppositely arranged, and form the structure of an approximate cylinder, and part to be measured is located at institute
It states between the first heating part and second heating part, the first heating part and second heating position are in first insulation portion
Between second insulation portion, it can be effectively prevent heat transfer, provide 800 DEG C to 2800 DEG C for Mechanics Performance Testing, and
The heating part and heat protection screen service life of graphite material are longer, advantage of lower cost, and heating part, heat protection screen are separate types
Installation is replaced and easy to maintain.
It (2) is each to be followed successively by the first graphite parietal layer, the first graphite carpet veneer, the second graphite parietal layer, second from inside to outside
Graphite carpet veneer and third graphite parietal layer, can preferably reach heat insulation effect.
(3) upper and lower side of each insulation portion is equipped with insulation cover, can further increase heat insulation effect.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of one of the embodiment of the present invention one ultra-temperature mechanical performance test high temperature furnace；
Fig. 2 is the structural schematic diagram that water cooled electrode is connect with heater in the embodiment of the present invention one；
Fig. 3 is the top view of Fig. 2；
Fig. 4 is the portion A enlarged diagram in Fig. 3；
Fig. 5 is the schematic diagram outside heat protection screen in the embodiment of the present invention one with the structure of frame torr.
In figure: 1: furnace body portion；2: furnace body door；3: the first insulation portions；31: the first graphite parietal layers；32: the first graphite carpet veneers；
33: the second graphite parietal layers；34: the second graphite carpet veneers；35: third graphite parietal layer；4: the second insulation portions；5: the first heating parts；6:
Second heating part；Insulation cover on 7: the first；8: the first lower insulation covers；Insulation cover on 9: the second；10: the second lower insulation covers；11: recessed
Portion；12: water cooled electrode；13: graphite electrode；14: measuring device accommodating chamber；141: receiving portion；142: accommodating chamber door；1421: seeing
Examine window；15: gasket；16: frame torr；161: mounting surface；162: supporting surface.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiments of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
Member's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
Embodiment one
As shown in Figure 1-Figure 3, ultra-temperature mechanical performance provided in an embodiment of the present invention tests high temperature furnace, including opposite opened furnace
Body, heater and heat protection screen, wherein heater includes the first heating part 5 being arranged in inside furnace body portion 1 and is arranged in furnace body door
The second heating part 6 on 2, first heating part 5 and second heating part 6 are the graphite tube wall of semi-circular cylindrical (by one
Its cutting is two parts along its axis direction by a cylindrical shape graphite-pipe, and each section is a heating part), in each stone
Along the slit for only running through graphite tube wall one end is axially arranged on black tube wall, in the present embodiment, i.e., slit is from the upper of graphite-pipe
End starts the axis along graphite tube wall to down toward the position close to (not running through) graphite-pipe lower end surface, has length in graphite tube wall
The graphite tube wall is divided into the two parts at interval by the part of seam, the slit, and each section graphite tube wall passes through one respectively
A graphite electrode 13 is connect with a water cooled electrode 12, wherein two water cooled electrodes 12 are connect with first heating part 5,
One end passes through the furnace body portion 1, and insulate and connect with the furnace body portion 1；Two water cooling electricity being connect with second heating part 6
12 one end of pole passes through the furnace body door 2, and insulate and connect with the furnace body door 2.
It is preferably carried out in mode some, between water cooled electrode 12 and furnace body portion 1 and water cooled electrode 12 and furnace body door 2
Equipped with bakelite, make connection of insulating between water cooled electrode 12 and furnace body portion 1 or furnace body door 2.
As shown in Fig. 2, guiding should be had relatively by being arranged on bakelite it is highly preferred that feather key is arranged in water cooled electrode 12
Slot can prevent water cooled electrode 12 from placing, facilitate the sealing between water cooled electrode 12 and furnace body portion 1, furnace body door 2.
Preferably, as shown in figs 2-4, graphite electrode 13 has turnup structure, and one side connects with corresponding heating part
It connects, another side is connect with water cooled electrode 12.In the present embodiment, the first graphite parietal layer 31, the first graphite carpet veneer 32 and second
The height of graphite parietal layer 33 can be lower than corresponding heating part, to avoid the graphite electrode 13 with turnup structure.
Specifically, it is passed through by bolt by heating part (including first heating part 5, the second heating part 6) and corresponding stone
It is connect after the flange of electrode ink 13 with water cooled electrode 12, it is preferable that in the position that the inside of heating part passes through bolt, gasket is set
15, to increase intensity, avoid damaging heating part (including the first heating part 5 and second heating part 6).Preferably, gasket
15 be graphite material.
As shown in Figure 1, heat protection screen includes the first insulation portion 3 and the second insulation portion 44, first insulation portion 3 and described the
Two insulation portions 44 are semi-circular cylindrical, wherein first insulation portion 3 is coaxial and what is be spaced is set to first heating part 5
Outside, second insulation portion 44 is coaxial and what is be spaced is set to 6 outside of the second heating part, can effectively prevent hot biography
It leads, plays insulation effect.
When being closed the furnace body door 2, first heating part 5 and second heating part 6 are oppositely arranged, part position to be measured
Between first heating part 5 and second heating part 6, the first heating part 5 and second heating part 6 are located at described the
Between one insulation portion 3 and second insulation portion 44, it can be effectively prevent heat transfer, realize and preferably heated for part to be measured.
Ultra-temperature mechanical performance in the present embodiment tests high temperature furnace, and there are two the fevers of the graphite material of semi-circular cylindrical for tool
Portion, and two heating parts be separately positioned in furnace body portion 1 and furnace body door 2 on, in the outside coaxial spaced of each heating part
It is provided with the heat protection screen that shape matches, when being closed the furnace body door 2, first heating part 5 and second heating part 6
It is oppositely arranged, forms the structure (at this point, with also with certain gap between two heating parts) of an approximate cylinder, it is to be measured
For part between first heating part 5 and second heating part 6, the first heating part 5 and second heating part 6 are located at institute
It states between the first insulation portion 3 and second insulation portion 44, heat transfer can be effectively prevent, provide 800 for Mechanics Performance Testing
DEG C to 2800 DEG C, and the heating part of graphite material and heat protection screen service life are longer, advantage of lower cost, and heating part,
Heat protection screen is separate installment, is replaced and easy to maintain.
In use, ultra-temperature mechanical performance test high temperature furnace is integrated on testing machine for mechanical properties, the fixture of testing machine
One end (for fixed one end to side part) is located in furnace body portion 1, will be closed furnace body door 2 after side part fixes, and make part to be measured
Between first heating part 5 and second heating part 6, the first heating part 5 and second heating part 6 are positioned at described
Between first insulation portion 3 and second insulation portion 44, after carrying out various preparations, starting heating power supply is heated.
It should be noted that water cooled electrode 12 is existing structure, details are not described herein.
It is preferably carried out in mode some, as shown in Figure 1, the first insulation portion 3 is identical with the structure of the second insulation portion 44,
It is that the first graphite parietal layer 31, the first graphite carpet veneer 32, second are followed successively by (far from heating part) outward by interior (close to heating part)
Graphite parietal layer 33, the second graphite carpet veneer 34 and third graphite parietal layer 35, can preferably reach heat insulation effect.
It is highly preferred that the thickness of the second graphite carpet veneer 34 is greater than the thickness of the first graphite carpet veneer 32, be conducive to furnace structure
Stablize, it is indeformable.
It in order to further increase heat insulation effect, is preferably carried out in mode some, ultra-temperature mechanical performance as shown in Figure 1
Testing high temperature furnace further includes upper insulation cover and lower insulation cover, wherein upper insulation cover includes keeping the temperature on insulation cover 7 and second on first
Lid 9, lower insulation cover include the first lower insulation cover 8 and the second lower insulation cover 10, and specifically, insulation cover 7 is located at institute on described first
The upper end of the first insulation portion 3 is stated, the described first lower insulation cover 8 is located at the lower end of first insulation portion 3, described to close off
The top and bottom of first insulation portion 3, insulation cover 9 is located at the upper end of second insulation portion 44 on described second, and described second
Lower insulation cover 10 is located at the lower end of second insulation portion 44, to close off the top and bottom of second insulation portion 44.
In addition, in the present embodiment, connection is not directly contacted between upper insulation cover, lower insulation cover and heater, to keep away
Exempt from conduction.It specifically, can be by the way that certain gap (avoiding contact with formula) be arranged or in modes realities such as setting insulating part isolation
It is existing.
Insulation cover 7 on described first, insulation cover 9, the first lower insulation cover 8 and the second lower insulation cover 10 on described second
Inside be respectively equipped with recess portion 11, when being closed the furnace body door 2, insulation cover 9 on insulation cover 7 and described second on described first
It is connected to each other, two recess portion 11 forms the first card hole of fixture, and the described first lower insulation cover 8 and the second lower insulation cover 10 are opposite
It connects, two recess portion 11 forms the second card hole of fixture, the first card hole and the second card hole for fixture, the deformation stretch rod etc. of testing machine
It passes through.
It is preferably carried out in mode some, the lower insulation cover 8 of insulation cover 9, first and the on insulation cover 7, second on first
Two lower insulation covers 10 are also possible to graphite parietal layer and graphite carpet veneer is constituted, and specific body structure can be with the first insulation portion 3 and second
Insulation portion 44 is identical, is followed successively by the first graphite parietal layer 31, the first graphite felt (far from heating part) outward by interior (close to heating part)
The 32, second graphite parietal layer 33 of layer, the second graphite carpet veneer 34 and third graphite parietal layer 35.
It is highly preferred that as shown in Figure 1, between having between the lower end of first heating part 5 and the first lower insulation cover 8
Gap between the lower end of second heating part 6 and the second lower insulation cover 10 there is gap to make the first fever when heated
Portion 5 and the upper end of the second heating part 6 be it is fixed, lower end can extend downwards, improve the service life of heater, simultaneously also
It is avoided that direct contact.
As shown in Figure 1, being preferably carried out in mode some, the upper side of the first lower insulation cover 8 and the second lower temperature lid is set
There is card slot corresponding with three layers of graphite parietal layer (the first graphite parietal layer 31, the second graphite parietal layer 33 and third graphite parietal layer 35),
The lower end insertion of first graphite parietal layer 31 of the first insulation portion 3, the second graphite parietal layer 33 and third graphite parietal layer 35 is corresponding
Fixed in card slot, the side of insulation cover 9 has flange on insulation cover 7 and second on first, and respective flange is fixed first
In insulation portion 3 and the second insulation portion 44, respective flange is located at the outside of corresponding insulation portion, is equipped with the side of recess portion 11
Without flange.
Preferably, as shown in figure 4, the first insulation portion 3 and the second insulation portion 44 are respectively by a frame torr 16 respectively in furnace body
In portion 1 and furnace body door 2, for example, frame torr 16 has two parts, a part and the mounting surface 161 of arc, cambered surface is substantially and relatively
Should the outside cambered surface of degree of heat preservation match, furnace body portion 1 and furnace body door 2 can be fixed on by bolt etc., another part is support
Face 162, the supporting surface 162 are located at the downside of mounting surface 161, are used to support corresponding lower insulation cover, realize the first insulation portion 3
With the fixation of the second insulation portion 44.
In order to reduce high temperature furnace outside temperature, reduce because external temperature overheat due to cause blanching to hurt, it is some preferably
In embodiment, the furnace body portion 1 and furnace body door 2 are Double water-cooled protecting wall structure, are equipped with water channel, the water channel and water in wall
Cooling system connection is recycled using cooling water and realizes that the external of high temperature furnace cools down, specifically, water-cooling system include at least water inlet pipe,
Outlet pipe and water pump, the water channel in Double water-cooled protecting wall structure are connected to external water inlet pipe and outlet pipe, are provided by water pump
Power realizes cooling water circulation.
It should be noted that water-cooling system is system commonly used in the prior art, details are not described herein.
In order to the convenient environment changed inside high temperature furnace as needed, in some embodiments preferably,
Ultra-temperature mechanical performance tests high temperature furnace, further includes pumped vacuum systems and plenum system, the pumped vacuum systems and plenum system
It is mounted in the furnace body portion 1, is respectively used to that inertia protection is vacuumized and be sent into the furnace body portion 1 in the furnace body portion 1
Gas.
It should be noted that as long as pumped vacuum systems and plenum system can be realized the function of vacuumizing and be sent into gas i.e.
Can, it is in the prior art more mature technology, details are not described herein.
It is preferably carried out in mode some, places place mechanical deformation measuring device for convenience, as shown in Figure 1, institute
The downside for stating furnace body portion 1 is equipped with independent measuring device accommodating chamber 14, and the measuring device accommodating chamber 14 includes receiving portion 141,
For accommodating mechanics deformation measuring device, which is generally connected with the fixture for passing through described accommodation section 141
It connects, for testing mechanical property of the part to be measured under high temperature or superhigh temperature, the side of described accommodation section 141 is additionally provided with the receiving that is hinged
Room door 142.
In some embodiments, measuring device accommodating chamber 14 side adjacent with furnace body portion 1 is equipped with and passes through for fixture
Via hole, by taking stretch rod as an example, stretch rod is two sections, and one section of stretch rod protrudes into furnace body portion 1 from the upper pass in furnace body portion 1, protrudes into
One end is equipped with the fixture for clamping part to be measured, and another section of stretch rod passes through 14 upper side of measuring device accommodating chamber (close to furnace body portion 1
Side) and the downside in furnace body portion 1 protrude into furnace body portion 1, which also has a fixture for clamping part to be measured, two sections of drawings
The axial distance or axial angle of the inserting end of boom are adjustable, to be draw textured respectively and the similar examinations such as bending
It tests.
Certainly, even if in the more above-mentioned embodiment without measuring device accommodating chamber 14, fixture can also in this way,
Difference is only no longer pass through measuring device accommodating chamber 14.
As shown in Figure 1, being preferably carried out in mode at some, the furnace body door 2 is equipped with transparent observation window (in figure
It is not shown), the second insulation portion 44 is equipped with observation panel opposite with the observation window of the furnace body door 2, the observation panel and the second hair
Slit in hot portion 6 is opposite, the length passed through on the second heating part 6 that can be convenient by the transparent observation window on furnace body door 2
Seam observes the case where when non-contact deformation is tested, and also facilitates the instrument such as the thermometer in observation furnace body portion 1.
Preferably, as is shown in fig. 1, the width at slit on the second heating part 6 position opposite with observation window is greater than
Width at its elsewhere position, to be more conducive to internal observation.
It is preferably carried out in mode some, accommodating chamber door 142 is equipped with transparent observation window 1421, is being used with facilitating
Internal test device is observed in the process.
Embodiment two
The present embodiment two provide it is a kind of using above-mentioned one of ultra-temperature mechanical performance test high temperature furnace in inertia
The method that atmosphere heats part to be measured, used mechanical behavior under high temperature test high temperature furnace, and furnace body portion 1 and furnace body door 2 are
Double water-cooled protecting wall structure, wall is interior to be equipped with water channel, which connect with water-cooling system, can realize height using cooling water circulation
The external cooling of warm furnace.In addition, it also has pumped vacuum systems and plenum system, for vacuumized in the furnace body portion 1 and to
Gas is sent into the furnace body portion 1.Mechanical behavior under high temperature test high temperature furnace other parts can be any of the above-described embodiment party
One kind of formula.
Specifically heating means are as follows:
Ultra-temperature mechanical performance test high temperature furnace is integrated on testing machine for mechanical properties, the mechanical property test
The fixture of machine passes through the furnace body portion 1, and when the furnace body door 2 closure, the part to be measured clamped by the fixture is located at institute
It states between the first heating part 5 and second heating part 6；
The pumped vacuum systems is opened, the inside of ultra-temperature mechanical performance test high temperature furnace is vacuumized；
Part oxidation to be measured in order to prevent, when the inside of ultra-temperature mechanical performance test high temperature furnace reaches certain vacuum degree
After (for example, vacuum degree is down to 10Pa or less), the plenum system is opened, to ultra-temperature mechanical performance test high temperature furnace
Inert protective gas is sent into inside, for example, nitrogen, argon gas etc., make the inside of the ultra-temperature mechanical performance test high temperature furnace
The pressure of inert protective gas relative to atmospheric pressure outside high temperature furnace there is certain positive pressure to make the superelevation in the present embodiment
The nitrogen of the inside of warm Mechanics Performance Testing high temperature furnace reaches 0.13MPa；
Water-cooling system is opened, makes to realize cooling water circulation in Double water-cooled protecting wall structure；
With the energetic start up heating power supply of the 10%-20% of heating power supply maximum power, after a period of time often, (for example,
8min, 9min, 10min, 11min, 12min etc.) increase a power, each increased power is heating power supply maximum power
10%-50%, such as 10%, 20%, 30%, 40%, 50%, until reach be increased to target temperature needed for power, then
Continue, after heating makes the part to be measured reach target temperature, keeps current target temperature.
If only needing to be tested under vacuum conditions certainly, it is convenient to omit the step for being sent into gas.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it is not each
Embodiment only contains an independent technical solution, mentioned in the various embodiments each in the case where scheduling conflicts are not present
Item technical characteristic can be combined in any way, and form other embodiments that can be understood by those skilled in the art.
In addition, without departing from the scope of the invention, being carried out to technical solution documented by foregoing embodiments
Modification or equivalent replacement of some of the technical features, it does not separate the essence of the corresponding technical solution, and the present invention is each
The spirit and scope of embodiment technical solution.
Claims (10)
1. a kind of ultra-temperature mechanical performance tests high temperature furnace characterized by comprising
Opposite opened furnace body, the opposite opened furnace body include furnace body portion and furnace body door, the side of the furnace body door and the furnace body portion
Hingedly；
Heater, including the first heating part being arranged in inside the furnace body portion and the second fever being arranged on the furnace body door
Portion, first heating part and second heating part are the graphite tube wall of semi-circular cylindrical, on each graphite tube wall
Along the slit through graphite tube wall one end is axially arranged with, by perforative one end, the slit divides the graphite tube wall
The two parts at interval are divided into, each section graphite tube wall passes through a graphite electrode respectively and connect with a water cooled electrode, wherein
The one end for two water cooled electrodes connecting with first heating part passes through the furnace body portion, and insulate and connect with the furnace body portion
It connects；The one end for two water cooled electrodes connecting with second heating part passes through the furnace body door, and insulate with the furnace body door
Connection；
Heat protection screen, including the first insulation portion and the second insulation portion, first insulation portion and second insulation portion are semicircle
Tubular, wherein first insulation portion is coaxial and what is be spaced is set on the outside of first heating part, and second insulation portion is same
Axis and interval are set on the outside of second heating part；
When being closed the furnace body door, first heating part and second heating part are oppositely arranged, and part to be measured is located at described
Between first heating part and second heating part, first heating part and second heating position are in first heat preservation
Between portion and second insulation portion.
2. ultra-temperature mechanical performance according to claim 1 tests high temperature furnace, it is characterised in that: first insulation portion and
The second insulation portion structure is identical, be followed successively by from inside to outside the first graphite parietal layer, the first graphite carpet veneer, the second graphite parietal layer,
Second graphite carpet veneer and third graphite parietal layer.
3. ultra-temperature mechanical performance according to claim 1 or 2 tests high temperature furnace, which is characterized in that further include:
Upper insulation cover, including insulation cover on insulation cover and second on first；
Lower insulation cover, including the first lower insulation cover and the second lower insulation cover；
Wherein, insulation cover is located at the upper end of first insulation portion on described first, and the described first lower insulation cover is located at described the
The lower end of one insulation portion, to close off the top and bottom of first insulation portion, insulation cover is located at described on described second
The upper end of second insulation portion, the described second lower insulation cover is located at the lower end of second insulation portion, to close off described second
The top and bottom of insulation portion；
Insulation cover on described first, on described second insulation cover, the first lower insulation cover and the second lower insulation cover inside point
Not She You recess portion, when being closed the furnace body door, insulation cover is connected to each other on insulation cover and described second on described first, two
Recess portion forms the first card hole of fixture, and the described first lower insulation cover and the second lower insulation cover are connected to each other, two recess portion composition
The second card hole of fixture.
4. ultra-temperature mechanical performance according to claim 3 tests high temperature furnace, it is characterised in that:
There is gap between the lower end of first heating part and the first lower insulation cover；
There is gap between the lower end of second heating part and the second lower insulation cover.
5. ultra-temperature mechanical performance according to claim 1 tests high temperature furnace, it is characterised in that: across the furnace body portion
Between two water cooled electrodes and the furnace body portion, and across two water cooled electrodes of the furnace body door and the furnace body door
It is to be insulated by bakelite.
6. ultra-temperature mechanical performance according to claim 1 tests high temperature furnace, it is characterised in that: the downside in the furnace body portion
Equipped with independent measuring device accommodating chamber, the measuring device accommodating chamber includes receiving portion, for accommodating mechanics deformation measurement dress
It sets, the side of described accommodation section is additionally provided with the accommodating chamber door that is hinged.
7. ultra-temperature mechanical performance according to claim 6 tests high temperature furnace, it is characterised in that: the furnace body door is equipped with saturating
Bright observation window, the second insulation portion are equipped with observation panel opposite with the observation window of the furnace body door, the observation panel and the second hair
Slit in hot portion is opposite.
8. ultra-temperature mechanical performance according to claim 4 tests high temperature furnace, it is characterised in that: the furnace body portion and furnace body
Door is Double water-cooled protecting wall structure, is equipped with water channel in furnace wall, the water channel is connect with water-cooling system.
9. ultra-temperature mechanical performance according to claim 8 tests high temperature furnace, it is characterised in that: further include pumped vacuum systems
And plenum system, the pumped vacuum systems and plenum system are mounted in the furnace body portion, are respectively used to take out in the furnace body portion
Vacuum and gas is sent into the furnace body portion.
10. a kind of test high temperature furnace under an inert atmosphere to part to be measured using ultra-temperature mechanical performance as claimed in claim 9
The method of heating, it is characterised in that: ultra-temperature mechanical performance test high temperature furnace is integrated on testing machine for mechanical properties, institute
The fixture for stating testing machine for mechanical properties passes through the furnace body portion, described clamped by the fixture when furnace body door closure
Part to be measured is between first heating part and second heating part；
The pumped vacuum systems is opened, the inside of ultra-temperature mechanical performance test high temperature furnace is vacuumized；
When the inside of ultra-temperature mechanical performance test high temperature furnace, which reaches certain vacuum, to be spent, the plenum system is opened, to
Inert protective gas is sent into the inside of the ultra-temperature mechanical performance test high temperature furnace, keeps the ultra-temperature mechanical performance test high
The pressure of the inert protective gas of the inside of warm furnace has certain positive pressure relative to atmospheric pressure outside high temperature furnace；
Water-cooling system is opened, makes to realize cooling water circulation in Double water-cooled protecting wall structure；
With the energetic start up heating power supply of the 10%-20% of heating power supply maximum power, then increase power gradually, reaches raising
Power needed for target temperature；
Continue heating so that the part to be measured is reached target temperature after, keep target temperature.
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| CN201811299208.2A CN109269877A (en) | 2018-11-02 | 2018-11-02 | A kind of ultra-temperature mechanical performance test high temperature furnace and its heating means |
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| CN201811299208.2A CN109269877A (en) | 2018-11-02 | 2018-11-02 | A kind of ultra-temperature mechanical performance test high temperature furnace and its heating means |
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| CN109991100A (en) * | 2019-03-29 | 2019-07-09 | 中国人民解放军国防科技大学 | Tension and compression test system and method used in high-low temperature and air pressure environment |
| CN113324418A (en) * | 2021-04-26 | 2021-08-31 | 中国铝业股份有限公司 | Aluminum electrolysis waste cathode treatment device and method |
| CN114323917A (en) * | 2021-12-31 | 2022-04-12 | 华侨大学 | High-temperature furnace of mechanical property tester |
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