CN207488148U - Test device for testing adhesiveness of thermal growth oxide film on metal surface - Google Patents
Test device for testing adhesiveness of thermal growth oxide film on metal surface Download PDFInfo
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- CN207488148U CN207488148U CN201721336041.3U CN201721336041U CN207488148U CN 207488148 U CN207488148 U CN 207488148U CN 201721336041 U CN201721336041 U CN 201721336041U CN 207488148 U CN207488148 U CN 207488148U
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- 238000012360 testing method Methods 0.000 title claims abstract description 35
- 239000002184 metal Substances 0.000 title claims abstract description 23
- 238000010438 heat treatment Methods 0.000 claims abstract description 84
- 238000005260 corrosion Methods 0.000 claims abstract description 50
- 230000007797 corrosion Effects 0.000 claims abstract description 50
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 29
- 229910045601 alloy Inorganic materials 0.000 claims description 36
- 239000000956 alloy Substances 0.000 claims description 36
- 239000010935 stainless steel Substances 0.000 claims description 14
- 229910001220 stainless steel Inorganic materials 0.000 claims description 14
- 238000005096 rolling process Methods 0.000 claims description 9
- 229910021642 ultra pure water Inorganic materials 0.000 claims description 6
- 239000012498 ultrapure water Substances 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 5
- 238000002791 soaking Methods 0.000 claims description 4
- 238000012544 monitoring process Methods 0.000 claims description 3
- 230000002572 peristaltic effect Effects 0.000 claims description 3
- 238000007254 oxidation reaction Methods 0.000 abstract description 29
- 230000003647 oxidation Effects 0.000 abstract description 23
- 238000002474 experimental method Methods 0.000 abstract description 14
- 125000004122 cyclic group Chemical group 0.000 abstract description 10
- 238000001816 cooling Methods 0.000 abstract description 7
- 238000011056 performance test Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 6
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 4
- 239000003546 flue gas Substances 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000006735 epoxidation reaction Methods 0.000 description 3
- 239000007769 metal material Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 230000005619 thermoelectricity Effects 0.000 description 3
- 241000233855 Orchidaceae Species 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 230000003026 anti-oxygenic effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 210000000038 chest Anatomy 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000007431 microscopic evaluation Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000004901 spalling Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000010301 surface-oxidation reaction Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
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Abstract
A test device for testing the adhesiveness of a thermally grown oxide film on a metal surface comprises a heating furnace, a bracket system, a control system and a water vapor generation device; the heating furnace is arranged on the support system and can move in the horizontal direction, the water vapor generating device is connected with the heating furnace, and the support system is connected with the control system; the screw rod nut mechanism comprises a screw rod horizontally arranged on a bearing with a seat and a nut arranged on the screw rod, the sliding block is fixed on the nut, and the sliding block is arranged in the guide rail and can move along the guide rail; the heating furnace is arranged on the slide block. The slide block, the guide rail, the screw nut mechanism and the speed reducing motor connected with the screw in the support system enable the heating furnace to reciprocate between the heating station and the cooling station, and the heating parameters of the heating furnace and the stroke of the nut are set by the control system, so that a high-temperature oxidation-low-temperature corrosion seamless alternative corrosion environment can be simulated to carry out a cyclic oxidation experiment, and the automatic control of the adhesion performance test of the thermally grown oxide film on the metal surface is realized.
Description
Technical field
The utility model is related to a kind of Metal Materials At High Temperature oxidation susceptibility test device, specifically a kind of test metal surface
The experimental rig of the adhesiveness of thermally grown oxide film.
Background technology
In fields such as thermoelectricitys, metallic high temperature component by corrosive gas (water vapour, flue gas etc.) during being corroded
Often it is also subject to hot-cold cycle.By mistake/reheater for this crucial high-temperature component, inside pipe wall is for a long time by high-temperature water vapor
Oxidation form oxidation film, and the flue gas of pipe outer wall and complicated components is in direct contact to form corrosion layer.On the one hand, oxidation film and corruption
Erosion layer is formed such that the heat transfer efficiency of boiler tube reduces.On the other hand, since the coefficient of thermal expansion of oxidation film/corrosion layer is usual
Less than the coefficient of thermal expansion of parent metal, in temperature change or equipment start-stop, oxidation film/corrosion layer should because bearing larger heat
Power and crack or peel off.Practice have shown that the plugging caused by spalling of oxide film, booster have become active service ultra supercritical thermoelectricity
One of the main reason for Benefit of Unit reduces.Thus, high-temperature component active service alloy or candidate alloy for thermoelectricity field, table
The adhesion property (antistrip performance of oxidation film) of surface oxidation film is one of key index for weighing alloy property.
At present, the adhesion property for assessing oxidation film is realized by carrying out epoxidation experiments.Epoxidation experiments
It is usually carried out in common resistance furnace, sample is exposed in static air.During experiment, need to determine oxidizing temperature, oxygen first
Change the experiment conditions such as time, temperature after cooling and cooling velocity, it is real then to carry out periodically oxidation-cooling on this condition
It tests.However, practice have shown that corrosive medium often has important influence to the antistrip performance of oxidation film.In flue gas or contain water
The oxidation film grown in the media such as the air/oxygen of steam shows completely different and often more inferior adhesiveness.
Therefore, antistrip performance of the oxidation film in same temperature, air can not truly reflect it in some special atmospheres such as cigarette
Antistrip performance in gas and water steam or humid air.In this case, metal material need to be carried out under special environment condition
Cyclic oxidation is tested.Some laboratories are according to the working environment of material and test purpose autonomous Design simulation actual working conditions
Under cyclic oxidation test device.High-temperature cyclic oxidation corrosion simulating test device described in patent CN101900663B, by adding
Hot stove, corrosive environment case, auxiliary stand system and control system composition are, it can be achieved that high-temperature oxydation and low-temperature corrosion alternately work
The test of the antioxygenic property of stainless steel, special steel, heat resisting steel etc. in condition environment.But the device is in simulation high-temperature oxydation-low
Continually sample is exposed in air at room temperature during cyclic corrosion as warm corrosion-high-temperature oxydation, test result distortion,
With certain limitation.
Fired power generating unit high temperature oxidation and low-temperature corrosion be it is seamless alternately, that is, coal-burning boiler operation process
Middle material will suffer from the high-temperature oxydation of water vapour, and material will suffer from low temperature water vapour or condensed water during boiler shutdown
Corrosion, there is no air to enter in heating surface (being made of heated tube bank) in the entire link of boiler operatiopn-blowing out.However,
Current cyclic oxidation test device both domestic and external cannot all simulate the above-mentioned seamless corrosion alternately of high-temperature oxydation-low-temperature corrosion
Process.To realize the test of boiler tube material cyclic oxidation performance in above-mentioned work condition environment, can be simulated there is an urgent need to a set of
High-temperature oxydation and the experimental rig of the seamless alternate cycles of low-temperature corrosion are carried out in water vapour atmosphere.
Utility model content
The purpose of this utility model is to provide a kind of experiment dresses of adhesiveness for testing metal surface thermally grown oxide film
It puts, can realize metal material cyclic oxidation performance in water vapor existing for high-temperature oxydation and the seamless alternating of low-temperature corrosion
Test.
In order to achieve the above object, the technical solution adopted in the utility model is as follows：
A kind of experimental rig for the adhesiveness for testing metal surface thermally grown oxide film, including heating furnace, stent system, control
System processed and water vapor generation device；The heating furnace be arranged in stent system and can horizontal direction movement, vapor hair
Generating apparatus is connected with heating furnace, and stent system is connected with control system；Wherein, the stent system include leadscrew-nut mechanism,
Sliding block, guide rail, leadscrew-nut mechanism includes the leading screw being horizontally set on rolling bearing units and the nut being arranged on leading screw, sliding
Block is fixed on nut, and sliding block is arranged in guide rail and can be moved along guide rail；Heating furnace is arranged on sliding block.
The utility model, which further improves, to be, the guide rail is arranged on guiderail base, and leading screw both ends are arranged on band
On seat bearing, leading screw is connected across rolling bearing units with decelerating motor.
The utility model, which further improves, to be, the leading screw both ends extreme position is equipped with to limit nut
The travel switch moved along screw.
The utility model, which further improves, to be, control system includes controlling heating-furnace internal temperature, heating
Rate and the temperature control unit of soaking time and the time for decelerating motor rotation and heating furnace to be controlled to move back and forth recycle
Control unit.
The utility model, which further improves, to be, temperature control unit uses electronic PID adjusting controls table, time cycle
Control unit uses circulation time controller.
The utility model, which further improves, to be, the heating furnace includes stainless steel casing and is arranged on stainless steel
Cylindrical burner hearth in shell, being horizontally disposed in cylindrical burner hearth has corrosion resistant alloy pipe, and the both ends of corrosion resistant alloy pipe are pierced by
Cylindrical burner hearth；Heating element and the thermocouple for monitoring heating furnace in-furnace temperature, cylindrical furnace are equipped in cylindrical burner hearth
Insulating layer is equipped between thorax and stainless steel casing, stainless steel casing is fixedly connected with a slide block.
The utility model, which further improves, to be, the length of the corrosion resistant alloy pipe is long more than or equal to cylindrical burner hearth
2 times of degree, and the diameter of corrosion resistant alloy pipe is less than or equal to the diameter of the burner hearth of heating furnace.
The utility model, which further improves, to be, the right end of corrosion resistant alloy pipe is provided with to seal the corrosion resistant alloy pipe right side
The right end flange at end, the left end of corrosion resistant alloy pipe are provided with the left end flange for sealing corrosion resistant alloy pipe left end, and air admission hole is opened
It is located on right end flange, venthole is opened on left end flange；Left end flange and right end flange are supported by flange bracket.
The utility model, which further improves, to be, water vapor generation device includes the ultrapure water machine, the water storage that are sequentially connected
Case, peristaltic pump and preheater, the outlet of preheater are connected with the air admission hole on right end flange；The input terminal of ultrapure water machine with from
Carry out water pipe to be connected.
Compared with prior art, the beneficial effects of the utility model are：The utility model passes through setting and control system
Connected stent system, sliding block, guide rail, leadscrew-nut mechanism in stent system and the decelerating motor being connected with leading screw make plus
Hot stove moves back and forth between heating station and cooling station, and the heating parameters and spiral shell of heating furnace are set by control system
Female stroke can simulate the seamless alternating corrosion environment of high-temperature oxydation-low-temperature corrosion and carry out epoxidation experiments, realize metal watch
Face thermally grown oxide film adhesion property test automatically controls.
Further, leading screw both ends extreme position is equipped with for limiting the travel switch that nut is moved along screw, can
To be accurately defined to the position that heating furnace moves.
When the utility model is tested, sample to be tested is suspended in sample mount, sample is placed on together with sample mount
The left end of corrosion resistant alloy pipe, at this time nut be located at the extreme right position of leading screw, heating furnace is in initial position；With left end method
Venthole on left end flange, is connected by the left end of orchid sealing corrosion resistant alloy pipe by conduit with Mead-Bauer recovery system；Use right end
The air admission hole of right end flange is connected by the right end of flange seal corrosion resistant alloy pipe by metal catheter with water vapor generation device；
Then it using internal temperature, heating rate and the soaking time of temperature control unit setting heating furnace, is recycled and controlled using the time
Unit processed sets nut in leading screw left end extreme position and the residence time of leading screw extreme right position；Decelerating motor, which rotates forward, to be driven
Leading screw rotates forward, and nut is made to rotate to the left end of leading screw, while drive sliding block together with left end of the heating furnace along guide rail direction guiding rail
Mobile, when nut touches the travel switch of leading screw left end extreme position, heating furnace reaches heating station, time loop control list
Member starts to keep the temperature timing；After the residence time of heating station reaches setting value, decelerating motor inverts and drives leading screw heating furnace
Reversion, nut rotated to the right end of screw, while sliding block is driven to slide into the right end of guide rail by the left end of guide rail together with heating furnace,
When nut touches the travel switch at leading screw extreme right position, heating furnace reaches cooling station, and time loop control unit is opened
Begin to cool down timing；It repeats the above process until reaching experiment setting cycle-index, terminates experiment；According to the original matter of test button
Quality after amount and size and experiment draws the cyclic oxidation kinetic curve of sample, and electric with metallographic microscope or scanning
Sub- microscopic analysis oxidation film cracks and flakes off behavior, completes the test of adhesiveness of metal surface thermally grown oxide film with dividing
Analysis.The utility model test method is simple and practicable, and high-temperature oxydation and the seamless friendship of low-temperature corrosion can be carried out in water vapour atmosphere
For the experiment of cycle, the adhesion property of specimen surface thermally grown oxide film is tested.In addition, the utility model can also root
Water vapor gas is changed to the corrosive gas such as flue gas according to actual needs to test.
Description of the drawings
Fig. 1 is the structure diagram of the utility model；
Fig. 2 is the side view of the utility model.
Wherein, 1 is heating furnace, and 2 be sliding block, and 3 be guide rail, and 4 be decelerating motor, and 5 be leading screw, and 6 be stainless steel casing, and 7 are
Corrosion resistant alloy pipe, 8 be thermocouple, and 9 be insulating layer, and 10 be right end flange, and 11 be air admission hole, and 12 be screw, and 13 be nut, and 14 are
Guiderail base, 15 be venthole, and 16 be left end flange, and 17 be rolling bearing units.
Specific embodiment
The utility model is described in further detail in the following with reference to the drawings and specific embodiments, the utility model is described in detail
Technical solution.
Referring to Fig. 1 and Fig. 2, the experimental rig of the utility model test metal surface thermally grown oxide film adhesiveness is by heating
Stove 1, stent system, control system and water vapor generation device composition.Heating furnace 1 is arranged in stent system and being capable of level side
To movement, water vapor generation device is connected with heating furnace 1, and stent system is connected with control system.
Heating furnace 1 includes stainless steel casing 6, the cylindrical burner hearth being arranged in stainless steel casing 6 and corrosion resistant alloy pipe
7, cylindrical burner hearth level is provided with insulating layer 9 through entire heating furnace between cylindrical burner hearth and stainless steel casing 6.Circle
Heating element and the thermocouple 8 for monitoring 1 in-furnace temperature of heating furnace are equipped in cylindricality burner hearth.Corrosion resistant alloy pipe 7 is horizontally disposed
In in 1 burner hearth of heating furnace and both ends are extended outside heating furnace burner hearth, i.e., corrosion resistant alloy pipe 7 passes through burner hearth, and both ends are located at outside burner hearth.
7 both ends open of corrosion resistant alloy pipe, for placing specimen mounting.The right end of corrosion resistant alloy pipe 7 is provided with to seal by screw 12
The right end flange 10 of corrosion resistant alloy pipe right end, left end are provided with the left end method for sealing corrosion resistant alloy pipe left end by screw 12
Orchid 16 is provided with the air admission hole 11 being connected with corrosion resistant alloy pipe 7 on right end flange 10, be provided on left end flange 16 with it is resistance to
The venthole 15 that erosion compo pipe 7 is connected.Right end flange 10 and left end flange 16 are supported by flange bracket.
The length of corrosion resistant alloy pipe 7 is more than or equal to 2 times of cylindrical burner hearth length, and the diameter of corrosion resistant alloy pipe 7 is less than
Equal to the diameter of the burner hearth of heating furnace 1.
Stent system includes leadscrew-nut mechanism, sliding block 2, guide rail 3 and guiderail base 14, and leadscrew-nut mechanism includes water
The flat leading screw 5 being arranged on rolling bearing units 17 and the nut 13 being arranged on leading screw 5, sliding block 2 pass through connector with nut 13
It is fixedly connected, and sliding block 2 is arranged in guide rail 3 and can be moved along guide rail 3；Heating furnace 1 is arranged on sliding block 2.Guide rail 3 is set
On guiderail base 14,5 both ends of leading screw are arranged on rolling bearing units 17, and leading screw 5 passes through rolling bearing units 17 and 4 phase of decelerating motor
Even, decelerating motor 4 drives 5 forward or reverse of leading screw；5 both ends extreme position of screw is both provided with travel switch, to limit spiral shell
The distance that mother 13 moves along screw 5.
The stainless steel casing 6 of heating furnace 1 is fixed on sliding block 2, and heating furnace 1 can do reciprocal fortune on guides 3 with sliding block 2
It is dynamic；It is fixedly connected between flange bracket and guiderail base.
Control system by 1 furnace interior temperature of control heating furnace, heating rate and soaking time temperature control unit and control
The time loop control unit composition that the rotation of decelerating motor 4 processed and 1 furnace body of heating furnace move back and forth；Temperature control unit is using electricity
Dynamic PID adjusting control tables, electronic PID adjusting controls table are connected with heating element, the thermocouple 8 being arranged in burner hearth.Time is followed
Ring control unit uses circulation time controller.
When nut 13 is located at the extreme right position of leading screw 5, heating furnace 1 is in initial position (i.e. the right end of guide rail 3)；
Decelerating motor 4, which rotates forward, drives leading screw 5 to rotate forward, and nut 13 is made to rotate to the left end of leading screw 5, while drive sliding block 2 together with heating furnace 1
The left end movement of direction guiding rail 3 together, when nut 13 touches the travel switch of 5 left end extreme position of leading screw, time cycle control
Unit processed starts to keep the temperature timing, and heating furnace 1 is located at heating station (i.e. the overlapping position of heating furnace flat-temperature zone and sample position) at this time；
Heating furnace 1 is after the residence time of heating station reaches setting value, and decelerating motor 4 inverts and leading screw 5 is driven to invert, and nut 13 revolves
The right end of screw 5 is gone to, slides into the right end of guide rail 3 by the left end of guide rail 3 with movable slider 2 and heating furnace 1, when nut 13 touches
Time loop control unit begins to cool down timing during travel switch at 5 extreme right position of leading screw, and heating furnace 1 is located at cold at this time
But station, sample are begun to cool down；Hot stove 1 to be added is after cooling station keeps setting time, then is moved to heating station, so follows
Ring is reciprocal.The frequency for wherein changing decelerating motor 4 can control the speed of 4 rotating speed of decelerating motor, so as to adjust the slip of heating furnace 1
Rate.
The water vapor generation device includes the ultrapure water machine, water tank, peristaltic pump and the preheater that are sequentially connected, preheater
Outlet be connected with the air admission hole 11 on right end flange；The input terminal of ultrapure water machine is connected with running water pipe.
Based on the test method of the adhesiveness device of metal surface thermally grown oxide film under above-mentioned test vapor environment, including
Following steps：
1) measure and record the original quality and size of test button；
2) test button to be measured is suspended on specimen mounting, sample is put into the left end of corrosion resistant alloy pipe 7 together with specimen mounting,
Nut 13 is located at the extreme right position of leading screw 5 at this time, and heating furnace 1 is in initial position；
3) it with the left end of left end flange seal corrosion resistant alloy pipe 7, by the venthole 15 on left end flange and is given up by conduit
Liquid recovery system is connected；With the right end of right end flange seal corrosion resistant alloy pipe 7, by metal catheter by the air admission hole of right end flange
11 are connected with steam generator；
4) air-tightness is checked；
5) internal temperature, heating rate and the guarantor of heating furnace 1 in a manual mode, are set using temperature control unit
The parameters such as warm time set nut 13 in 5 left end extreme position of leading screw and 5 extreme right of leading screw using time loop control unit
The residence time of position；
6) automatic mode is switched to, starts decelerating motor 4, is driven using time loop control unit control decelerating motor 4
Heating furnace 1 is moved to specimen mounting position, final so that the flat-temperature zone of heating furnace 1 is overlapped with specimen mounting position.At this
During a, leading screw 5 rotates forward, and nut 13 is rotated and is moved to the left along screw 5, sliding block 2 and 1 guide of heating furnace being fixed thereon
The left end of rail 3 slides, until nut 13 touches the travel switch of 5 left end extreme position of leading screw, starts to keep the temperature timing；
7) heating furnace 1 after the residence time of heating station reaches setting value, slow down electric by the control of time loop control unit
Machine 4 drives heating furnace 1 to be moved to the direction far from specimen mounting, finally so that heating furnace 1 returns to initial position.In the process,
Leading screw 5 inverts, and nut 13 is rotated and moved right along screw 5, sliding block 2 and the right side of 1 direction guiding rail 3 of heating furnace being fixed thereon
End is slided, until nut 13 touches the travel switch at 5 extreme right position of leading screw, begins to cool down timing；
8) it repeats step 6) and 7) until reaching cycle-index needed for experiment, terminates experiment, sampling analysis；
9) the cyclic oxidation kinetic curve of sample is drawn according to the sample mass after experiment, with metallographic microscope or scanning
The technological means such as electron microscope analysis oxidation film cracks and flakes off behavior.
Claims (9)
1. a kind of experimental rig for the adhesiveness for testing metal surface thermally grown oxide film, which is characterized in that including heating furnace
(1), stent system, control system and water vapor generation device；The heating furnace (1) is arranged in stent system and can be horizontal
Direction is moved, and water vapor generation device is connected with heating furnace (1), and stent system is connected with control system；Wherein, the carriage support
System includes leadscrew-nut mechanism, sliding block (2) and guide rail (3), and leadscrew-nut mechanism includes being horizontally set on rolling bearing units (17)
On leading screw (5) and the nut (13) that is arranged on leading screw, sliding block (2) be fixed on nut (13), and sliding block (2) is set
It and can be mobile along guide rail (3) in guide rail (3)；Heating furnace (1) is arranged on sliding block (2).
2. the experimental rig of the adhesiveness of test metal surface thermally grown oxide film according to claim 1, feature exist
In the guide rail (3) is arranged on guiderail base (14), and leading screw (5) both ends are arranged on rolling bearing units (17), and leading screw (5) is worn
Rolling bearing units (17) are crossed with decelerating motor (4) to be connected.
3. the experimental rig of the adhesiveness of test metal surface thermally grown oxide film according to claim 1, feature exist
In the leading screw (5) both ends extreme position is equipped with to limit nut (13) along the mobile travel switch of leading screw (5).
4. the experimental rig of the adhesiveness of test metal surface thermally grown oxide film according to claim 1, feature exist
Include in, control system temperature control unit for controlling heating furnace (1) furnace interior temperature, heating rate and soaking time and
For controlling the time loop control unit of decelerating motor (4) rotation and heating furnace (1) reciprocating motion.
5. the experimental rig of the adhesiveness of test metal surface thermally grown oxide film according to claim 4, feature exist
In temperature control unit uses electronic PID adjusting controls table, and time loop control unit uses circulation time controller.
6. the experimental rig of the adhesiveness of test metal surface thermally grown oxide film according to claim 1, feature exist
In the heating furnace (1) includes stainless steel casing (6) and the cylindrical burner hearth being arranged in stainless steel casing (6), cylinder
Being horizontally disposed in shape burner hearth has corrosion resistant alloy pipe (7), and the both ends of corrosion resistant alloy pipe (7) are pierced by cylindrical burner hearth；It is cylindrical
The heating element being connected with control system and the thermocouple (8) for monitoring heating furnace (1) in-furnace temperature, cylinder are equipped in burner hearth
Insulating layer (9) is equipped between shape burner hearth and stainless steel casing (6), stainless steel casing (6) is fixedly connected with sliding block (2).
7. the experimental rig of the adhesiveness of test metal surface thermally grown oxide film according to claim 6, feature exist
In the length of the corrosion resistant alloy pipe (7) is more than or equal to 2 times of cylindrical burner hearth length, and the diameter of corrosion resistant alloy pipe (7)
Less than or equal to the diameter of the burner hearth of heating furnace (1).
8. the experimental rig of the adhesiveness of the test metal surface thermally grown oxide film described according to claim 6 or 7, feature
It is, the right end of corrosion resistant alloy pipe (7) is provided with the right end flange (10) for sealing corrosion resistant alloy pipe right end, corrosion resistant alloy pipe
(7) left end is provided with the left end flange (16) for sealing corrosion resistant alloy pipe left end, and air admission hole (11) is opened in right end flange
(10) on, venthole (15) is opened on left end flange (16)；Left end flange (16) and right end flange (10) are by flange bracket
Support.
9. the experimental rig of the adhesiveness of test metal surface thermally grown oxide film according to claim 1, feature exist
In ultrapure water machine, water tank, peristaltic pump and preheater that, water vapor generation device includes being sequentially connected, the outlet of preheater with
Air admission hole (11) on right end flange (10) is connected；The input terminal of ultrapure water machine is connected with running water pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721336041.3U CN207488148U (en) | 2017-10-17 | 2017-10-17 | Test device for testing adhesiveness of thermal growth oxide film on metal surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721336041.3U CN207488148U (en) | 2017-10-17 | 2017-10-17 | Test device for testing adhesiveness of thermal growth oxide film on metal surface |
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| Publication Number | Publication Date |
|---|---|
| CN207488148U true CN207488148U (en) | 2018-06-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721336041.3U Active CN207488148U (en) | 2017-10-17 | 2017-10-17 | Test device for testing adhesiveness of thermal growth oxide film on metal surface |
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| CN (1) | CN207488148U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107525762A (en) * | 2017-10-17 | 2017-12-29 | 华能国际电力股份有限公司 | Test device and method for testing adhesiveness of thermally grown oxide film on metal surface |
| CN112326542A (en) * | 2020-10-19 | 2021-02-05 | 江苏徐工工程机械研究院有限公司 | Engineering machine tool coating corrosion resistance evaluation system |
-
2017
- 2017-10-17 CN CN201721336041.3U patent/CN207488148U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107525762A (en) * | 2017-10-17 | 2017-12-29 | 华能国际电力股份有限公司 | Test device and method for testing adhesiveness of thermally grown oxide film on metal surface |
| CN112326542A (en) * | 2020-10-19 | 2021-02-05 | 江苏徐工工程机械研究院有限公司 | Engineering machine tool coating corrosion resistance evaluation system |
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