CN116297652A - Test system and method for detecting collapse performance of iron-chromium-aluminum alloy - Google Patents
Test system and method for detecting collapse performance of iron-chromium-aluminum alloy Download PDFInfo
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- CN116297652A CN116297652A CN202310215125.5A CN202310215125A CN116297652A CN 116297652 A CN116297652 A CN 116297652A CN 202310215125 A CN202310215125 A CN 202310215125A CN 116297652 A CN116297652 A CN 116297652A
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- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 187
- -1 iron-chromium-aluminum Chemical compound 0.000 title claims abstract description 187
- 238000012360 testing method Methods 0.000 title claims abstract description 111
- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000007665 sagging Methods 0.000 claims abstract description 61
- 238000001514 detection method Methods 0.000 claims abstract description 13
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 23
- 238000010998 test method Methods 0.000 claims description 11
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- 229910052802 copper Inorganic materials 0.000 claims description 6
- 239000010949 copper Substances 0.000 claims description 6
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- 229910045601 alloy Inorganic materials 0.000 abstract description 41
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/20—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/20—Metals
- G01N33/204—Structure thereof, e.g. crystal structure
- G01N33/2045—Defects
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Abstract
The invention discloses a test system and a method for detecting collapse performance of an iron-chromium-aluminum alloy, wherein the test system comprises the following components: the device comprises a testing device, a power supply, a range finder and a temperature detection device, wherein the testing device comprises a sample clamp; the sample clamp is used for transversely suspending and clamping the iron-chromium-aluminum alloy to be tested, the sample clamp is connected with a power supply, and the power supply is used for powering on the sample clamp and heating the iron-chromium-aluminum alloy to be tested; the temperature detection device is used for detecting the temperature of the iron-chromium-aluminum alloy to be detected, and the range finder is used for measuring the sagging amount of the iron-chromium-aluminum alloy to be detected. According to the method, the collapse resistance of the alloy is tested by simulating the collapse condition of the alloy under the use condition, so that the alloy is optimized.
Description
Technical Field
The invention relates to the technical field of metal processing tests, in particular to a test system and a test method for detecting collapse performance of an iron-chromium-aluminum alloy.
Background
The diffusion furnace is one of important process equipment in the front process of semiconductor production line, and is used in diffusion, oxidation, annealing, alloy, sintering and other processes in large scale integrated circuit, discrete device, power electronic, photoelectric device, optical fiber and other industry. The heating part in the furnace body heating system is usually formed by winding iron-chromium-aluminum large-specification steel wires (phi 6-8 mm) into large-circle-diameter screws (phi 350mm or more) for electrifying and heating, and the use temperature is generally 600-1200 ℃. In use, the heating screw can generate a certain degree of deformation due to the larger diameter of the screw ring, if the design and the use are unreasonable, the heating part can be seriously collapsed, the lining quartz tube is cracked, or the heating screw inter-turn lap joint is even burnt due to the deformation of the heating wire, the service life of the diffusion furnace is seriously influenced, even the heated material is scrapped, and the large economic loss is generated.
In order to provide a more targeted reference basis for a user in design, so that the designed furnace body can be better combined with the use requirement, the service life of the furnace body is prolonged to the maximum extent, a collapse resistance test method is designed by simulating the use condition, and the collapse resistance of a typical material is tested.
Disclosure of Invention
According to the test system and the test method for detecting the collapse performance of the iron-chromium-aluminum alloy, the collapse resistance of the alloy is tested by simulating the collapse condition of the alloy under the use condition, the alloy is optimized, and the service life of a furnace body is prolonged.
In a first aspect, the present invention provides, according to an embodiment of the present invention, the following technical solutions:
a test system for detecting collapse performance of an iron-chromium-aluminum alloy, comprising:
the device comprises a testing device, a power supply, a range finder and a temperature detection device, wherein the testing device comprises a sample clamp; the sample clamp is used for transversely suspending and clamping the iron-chromium-aluminum alloy to be tested, the sample clamp is connected with the power supply, and the power supply is used for powering on the sample clamp to heat the iron-chromium-aluminum alloy to be tested; the temperature detection device is used for detecting the temperature of the iron-chromium-aluminum alloy to be detected, and the range finder is used for measuring the sagging amount of the iron-chromium-aluminum alloy to be detected.
Preferably, the test device further comprises: the sample clamp is connected with the support frame through the insulation column, and the support frame is arranged on the operation platform; the insulating column is used for isolating the sample clamp from the operation platform, and the supporting frame is used for supporting the sample clamp and the insulating column.
Preferably, the sample clamp comprises two oppositely arranged sample clamps, and the support frame comprises two oppositely arranged support rods; each sample clamp is connected with a respective support rod through an independent insulating column, the iron-chromium-aluminum alloy to be tested is transversely fixed between two oppositely arranged sample clamps, the bottoms of the two support rods are arranged on the operation platform through fixing bolts, and the distance between the two support rods can be increased or reduced by loosening the fixing bolts.
Preferably, the test system further comprises: copper line row and wiring end, sample anchor clamps with the one end of copper line row is connected, the other end of copper line row with the wiring end is connected, the wiring end with the power is connected.
Preferably, the test system further comprises: and the cooling fan is arranged close to the copper wire row and used for cooling the copper wire row.
In a second aspect, the present invention provides, according to an embodiment of the present invention, the following technical solutions:
a test method for detecting collapse performance of an iron-chromium-aluminum alloy, applied to the test system according to any one of the first aspect, the test method comprising:
selecting a plurality of iron-chromium-aluminum alloys with different diameters as iron-chromium-aluminum alloys to be tested; transversely suspending and clamping the iron-chromium-aluminum alloy to be tested by using a sample clamp aiming at each iron-chromium-aluminum alloy to be tested; energizing the sample holder; detecting the temperature of the iron-chromium-aluminum alloy to be detected, and recording the sagging amount of the iron-chromium-aluminum alloy to be detected corresponding to different temperatures.
Preferably, before the iron-chromium-aluminum alloy to be tested is transversely suspended and clamped by the sample clamp, the method further comprises the following steps: straightening operation is carried out on the iron-chromium-aluminum alloy to be detected, and after the iron-chromium-aluminum alloy to be detected is transversely suspended and clamped by a sample clamp, the iron-chromium-aluminum alloy to be detected further comprises: and loosening the support frame fixing bolt.
Preferably, the detecting the temperature of the iron-chromium-aluminum alloy to be detected and recording the sagging amounts of the iron-chromium-aluminum alloy to be detected corresponding to different temperatures includes: if the temperature of the iron-chromium-aluminum alloy to be detected reaches a first preset test temperature, recording the sagging amount of the iron-chromium-aluminum alloy to be detected, corresponding to the temperature at the first preset test temperature, in a preset test time period; if the temperature of the iron-chromium-aluminum alloy to be detected reaches a second preset test temperature, recording the sagging amount of the iron-chromium-aluminum alloy to be detected, corresponding to the temperature in the preset test time at the second preset test temperature.
Preferably, before the energizing the sample holder, the method further comprises: measuring an initial vertical distance between the center position of the iron-chromium-aluminum alloy to be measured and an operation platform, and recording corresponding sagging amounts of the iron-chromium-aluminum alloy to be measured at different temperatures, wherein the method comprises the following steps: recording the corresponding target vertical distance between the center position of the iron-chromium-aluminum alloy to be detected and the operation platform at different temperatures; and obtaining the sagging amount of the iron-chromium-aluminum alloy to be detected based on the initial vertical distance and the target vertical distance.
Preferably, the selecting a plurality of iron-chromium-aluminum alloys with different diameters as the iron-chromium-aluminum alloy to be measured includes: and selecting a plurality of iron-chromium-aluminum alloys with diameters ranging from 2 mm to 10 mm as iron-chromium-aluminum alloys to be tested.
One or more technical solutions provided in the embodiments of the present application at least have the following technical effects or advantages:
according to the system for testing the collapse performance of the iron-chromium-aluminum alloy, which is provided by the embodiment of the invention, the iron-chromium-aluminum alloy to be tested is transversely suspended and clamped through the sample clamp, the sample clamp is connected with the power supply, the power supply is used for electrifying the sample clamp, the temperature of the iron-chromium-aluminum alloy to be tested is changed, the temperature of the iron-chromium-aluminum alloy to be tested is further detected through the temperature detection device, and when the iron-chromium-aluminum alloy to be tested is at different temperatures, the sagging amount of the alloy caused by heating is detected, the sagging amount reflects the collapse condition of the alloy, so that the transverse collapse prevention performance of the iron-chromium-aluminum alloy with different specifications at different temperatures can be tested through the testing device, and the factors favorable for the collapse prevention performance of the alloy are tested. According to the method, the collapse resistance of the alloy is tested by simulating the collapse condition of the alloy under the use condition, so that the alloy is optimized, the service life of the furnace body is prolonged, and the economic benefit is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a block diagram of a test system for detecting collapse performance of an iron-chromium-aluminum alloy according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a test system including copper wire rows, terminals and a cooling fan according to an embodiment of the present invention;
FIG. 3 is a schematic flow chart of a test method for detecting collapse performance of an iron-chromium-aluminum alloy according to an embodiment of the present invention;
fig. 4 is a schematic diagram of a sagging amount according to an embodiment of the present invention.
Reference numerals:
10-sample holder; 20-insulating columns; 30-supporting frames; 40-an operation platform; 50-a heat radiation fan; 60-copper wire rows; 70-wiring terminals; 80-iron-chromium-aluminum alloy to be tested; 90-power supply.
Detailed Description
According to the test system and the test method for detecting the collapse performance of the iron-chromium-aluminum alloy, the collapse resistance of the alloy is tested by simulating the collapse condition of the alloy under the use condition, the alloy is optimized, and the service life of a furnace body is prolonged.
The technical scheme of the embodiment of the application generally comprises the following steps:
a test system for detecting collapse performance of an iron-chromium-aluminum alloy, comprising: the device comprises a testing device, a power supply, a range finder and a temperature detection device, wherein the testing device comprises a sample clamp; the sample clamp is used for transversely suspending and clamping the iron-chromium-aluminum alloy to be tested, the sample clamp is connected with the power supply, and the power supply is used for powering on the sample clamp to heat the iron-chromium-aluminum alloy to be tested; the temperature detection device is used for detecting the temperature of the iron-chromium-aluminum alloy to be detected, and the range finder is used for measuring the sagging amount of the iron-chromium-aluminum alloy to be detected.
In order to better understand the above technical solutions, the following detailed description will refer to the accompanying drawings and specific embodiments.
In a first aspect, a test system for detecting collapse performance of an iron-chromium-aluminum alloy according to an embodiment of the present invention, specifically as shown in fig. 1, includes: a testing device comprising a sample holder 10, a power supply, a distance meter (not shown) and a temperature detection device (not shown).
The sample clamp 10 is used for transversely suspending and clamping the iron-chromium-aluminum alloy 80 to be tested, the sample clamp 10 is connected with a power supply, and the power supply is used for powering on the sample clamp 10 and heating the iron-chromium-aluminum alloy 80 to be tested; the temperature detection device is used for detecting the temperature of the iron-chromium-aluminum alloy 80 to be detected, and the range finder is used for measuring the sagging amount of the iron-chromium-aluminum alloy 80 to be detected.
Optionally, the temperature detecting device comprises a non-contact temperature sensor, and the non-contact temperature sensor is aligned with the iron-chromium-aluminum alloy 80 to be detected and is used for detecting the temperature of the alloy in real time. A non-contact temperature sensor may be provided on the height-increasing rack for alignment.
The distance meter may be any device capable of implementing distance measurement, for example, the distance meter may also be an instrument capable of implementing automatic measurement, such as a displacement sensor or a coordinate measuring machine, and of course, as other alternative embodiments, the distance meter may be a camera, where distance measurement is implemented by the camera. Alternatively, the sagging amount of the iron-chromium-aluminum alloy 80 to be measured is obtained by manual measurement as a caliper or the like. The distance meter is not limited in this application as to what the device is specifically.
In a specific embodiment, in order to increase the sagging space of the iron-chromium-aluminum alloy 80 to be tested and to provide targeted insulation for the sample holder 10, as shown in fig. 1, the testing apparatus may further include: the sample clamp 10 is connected with the support frame 30 through the insulation column 20, the support frame 30 and the operation platform 40, and the support frame 30 is arranged on the operation platform 40. The insulating column 20 is used for isolating the sample clamp 10 from the operation platform 40, and the supporting frame 30 is used for supporting the sample clamp 10 and the insulating column 20.
As an alternative embodiment, the support 30 may be a telescopic support, and the tester may adjust the height of the support 30 according to actual needs, so as to facilitate the alignment of the temperature detecting device with the iron-chromium-aluminum alloy 80 to be detected, and facilitate the measurement of the sagging amount of the iron-chromium-aluminum alloy 80 to be detected by the rangefinder, etc.
The insulating column 20 has an insulating function, so that current cannot be conducted to the support 30 and the operation platform 40 through the sample holder 10. The insulating column 20 may be made of any insulating material, for example: and (3) rubber. The operator platform 40 may enable the placement of the overall device.
Specifically, as shown in fig. 2, the sample fixture 10 may include two oppositely disposed sample clamps, the support frame 30 may include two oppositely disposed support rods, each sample clamp is connected to a respective support rod through a separate insulating column 20, the iron-chromium-aluminum alloy 80 to be tested is transversely fixed between the two oppositely disposed sample clamps, the sample clamps may fix the iron-chromium-aluminum alloy 80 to be tested through fixing bolts, bottoms of the two support rods are disposed on the operation platform 40 through fixing bolts, and the distance between the two support rods can be increased or decreased by loosening the fixing bolts.
The bottoms of the support rods are arranged on the operation platform 40 through fixing bolts, specifically, sliding blocks (not shown in the figure) are arranged at the bottoms of the two support rods, a linear guide rail (not shown in the figure) is arranged on the operation platform 40, the sliding blocks are connected with the linear guide rail in a matched mode, and when the fixing bolts are loosened, the support rods can linearly move on the guide rail of the operation platform 40 through the sliding blocks, so that the distance between the two support rods is increased or reduced.
Therefore, when the iron-chromium-aluminum alloy 80 to be measured sags due to the increase of the temperature, the linear length of the iron-chromium-aluminum alloy 80 to be measured is reduced, so that the sample clamp 10 can well fix the alloy in order to match with the change of the alloy, and the distance between two oppositely arranged sample clamps can be changed along with the change of the linear length of the alloy, namely the distance between the sample clamps can be gradually reduced.
In particular embodiments, to facilitate connection between the power source and the sample holder 10, as shown in FIG. 2, the test system may further comprise: copper wire row 60 and wiring terminal 70, sample fixture 10 is connected with one end of copper wire row 60, and the other end of copper wire row 60 is connected with wiring terminal 70, and wiring terminal 70 is connected with power 90.
When the sample holder 10 is two oppositely disposed sample holders, the copper wire line 60 and the terminal 70 are respectively two, and each sample holder is connected to a separate copper wire line 60, and the copper wire line 60 is connected to the terminal 70.
Further, to avoid excessive temperatures of the energized copper wire array 60, as shown in FIG. 2, the test system may further include: and the cooling fan 50 is arranged close to the copper wire row 60 and used for cooling the copper wire row 60.
Accordingly, when the number of the copper wire rows 60 is two, the heat dissipation fans 50 are also provided in two, and each heat dissipation fan 50 is aligned to one copper wire row 60 to dissipate heat of the copper wire row 60.
Specifically, the power supply 90 in the present application may include: the arc welding power supply 90 comprises a main switch, a constant-current constant-voltage switch, a power knob and a voltage knob, wherein the main switch is used for controlling the power supply 90 to be turned on and off, the voltage knob is used for adjusting the power supply voltage, and the current knob is used for adjusting the current. Alternatively, the power supply 90 may be a current generator, which is not limited in this application.
In summary, according to the test system for detecting collapse performance of the iron-chromium-aluminum alloy provided by the embodiment of the invention, the relation between the collapse performance and the temperature is determined by simulating the collapse condition of the iron-chromium-aluminum alloy under the use condition, so that the collapse resistance of the alloy is tested, the alloy is favorably optimized, the service life of a furnace body is further prolonged, and the economic benefit is improved.
In a second aspect, a test system for detecting collapse performance of an iron-chromium-aluminum alloy according to an embodiment of the present invention, specifically, as shown in fig. 3, the test method includes the following steps S101 to S104.
Step S101, selecting a plurality of iron-chromium-aluminum alloys with different diameters as iron-chromium-aluminum alloys to be tested.
Step S102, transversely suspending and clamping the iron-chromium-aluminum alloy to be tested by a sample clamp for each iron-chromium-aluminum alloy to be tested;
step S103, electrifying the sample clamp;
step S104, detecting the temperature of the iron-chromium-aluminum alloy to be detected, and recording the sagging amount of the iron-chromium-aluminum alloy to be detected corresponding to different temperatures.
In the specific implementation process, in order to realize the test of collapse performance of a plurality of iron-chromium-aluminum alloys with different diameters, the influence of the diameters on the collapse performance of the alloy is tested, and the application selects a plurality of iron-chromium-aluminum alloys with diameters ranging from 2 mm to 10 mm as the iron-chromium-aluminum alloy to be tested.
For example, 2 mm, 4 mm, 6 mm, 8mm and 10 mm diameter iron-chromium-aluminum alloys were selected as iron-chromium-aluminum alloys to be tested, and collapse performance was tested for each diameter iron-chromium-aluminum alloy.
In the testing process, after the iron-chromium-aluminum alloy to be tested is selected, the interval between the oppositely arranged sample clamps is adjusted to the standard length through the adjusting support frame, and the fixing bolts on the support frame are screwed.
Specifically, in order to reduce the error of measuring the sagging amount of the alloy and improve the testing precision, before the iron-chromium-aluminum alloy to be tested is transversely suspended and clamped by the sample clamp, the method can further comprise the following steps: straightening the iron-chromium-aluminum alloy to be tested, and straightening the iron-chromium-aluminum alloy to be tested; after transversely suspending and clamping the straightened iron-chromium-aluminum alloy to be tested by using the sample clamp, the method can further comprise the following steps: and loosening the support frame fixing bolt.
Specifically, when the iron chromium aluminum alloy to be measured sags due to temperature rise, in order to match with the change of the alloy, the sample clamp can be used for fixing the alloy well all the time, and after the iron chromium aluminum alloy to be measured is transversely suspended and clamped by the sample clamp through tightening the sample clamp fixing bolt, the iron chromium aluminum alloy to be measured further comprises: the support frame fixing bolts are loosened, so that the distance between two oppositely arranged sample clamps can change along with the change of the linear length of the alloy, namely, the distance between the two sample clamps can be gradually reduced.
And then, a power supply main switch is turned on to electrify the sample clamp, the alloy to be tested is heated by adjusting a current knob, the temperature of the alloy is measured in real time by using a temperature detection device, and the current knob is adjusted until the temperature of the alloy meets the test requirement.
Specifically, when the power supply is an arc welding power supply, the power supply in the present application may be set to a panel control mode or a constant current mode. The panel control mode includes: before the test starts, the current and the voltage of the power supply are adjusted to be minimum, and then the current is continuously increased to heat the sample; the constant current mode includes: the current knob is adjusted to adjust the current, and the voltage is automatically matched according to the current.
In a specific embodiment, detecting the temperature of the iron-chromium-aluminum alloy to be detected, and recording the sagging amounts of the iron-chromium-aluminum alloy to be detected corresponding to different temperatures, including: if the temperature of the iron-chromium-aluminum alloy to be detected reaches the first preset test temperature, recording the sagging amount of the iron-chromium-aluminum alloy to be detected, which corresponds to the temperature at the first preset test temperature within the preset test time; if the detected temperature of the to-be-detected iron-chromium-aluminum alloy reaches the second preset test temperature, recording the sagging amount of the to-be-detected iron-chromium-aluminum alloy corresponding to the temperature at the second preset test temperature in the preset test time, and the like until the test of a plurality of temperatures of the to-be-detected iron-chromium-aluminum alloy is completed. For example, at least ten different temperatures were tested for sagging of the iron-chromium-aluminum alloy to be tested.
In order to obtain the influence of the temperature on the iron-chromium-aluminum alloy to be tested more accurately, the duration of each test is equal.
In a specific embodiment, if it is detected that the temperature of the iron-chromium-aluminum alloy to be tested reaches the first preset test temperature, recording a sagging amount of the iron-chromium-aluminum alloy to be tested corresponding to the temperature within the preset test time at the first preset test temperature, including: starting timing when the temperature of the iron-chromium-aluminum alloy to be detected reaches a first preset test temperature, measuring the sagging amount of the iron-chromium-aluminum alloy to be detected every first unit time period in a preset time period, and adjusting a power supply to ensure that the temperature of the iron-chromium-aluminum alloy to be detected is kept at the first preset test temperature; after the preset time period, measuring the sagging amount of the iron-chromium-aluminum alloy to be measured every second unit time period, and adjusting the power supply to ensure that the temperature of the iron-chromium-aluminum alloy to be measured is kept at the first preset test temperature until the total test duration reaches the preset test duration.
And similarly, recording the sagging amount of the iron-chromium-aluminum alloy to be tested corresponding to the temperature in the next preset test time at the second preset test temperature by adopting the same method.
It should be noted that, in the test process, under the condition that the current and the voltage are unchanged, along with the deformation and the oxidation of the iron-chromium-aluminum alloy to be tested, the resistance of the iron-chromium-aluminum alloy changes, so that the temperature can change, and therefore, the current needs to be adjusted to correct the temperature, so that the temperature is constant at the first preset test temperature.
In order to simulate the collapse condition of the iron-chromium-aluminum alloy to be tested under the real condition, the preset test temperature of the iron-chromium-aluminum alloy to be tested is less than or equal to 1400 ℃, for example, the first preset test temperature can be between 1300 ℃ and 1400 ℃.
The temperature fluctuation of the alloy is larger, the sagging amplitude of the alloy is larger, the temperature tends to be stable, and the sagging amount of the alloy collapses and changes steadily, so that the testing density in the preset time period of the total testing duration is larger, namely the first unit time period is smaller than the second unit time period, in order to more accurately represent the material collapse sagging change trend.
Preferably, the preset time period may be between 8 and 10 hours, the first unit time period may be 2 hours, and the second unit time period may be 4 hours. The preset test duration may be 150 hours.
For example, if the temperature of the iron-chromium-aluminum alloy to be measured reaches 1300 ℃, the time at 1300 ℃ is recorded as the initial time, the sagging amount of the iron-chromium-aluminum alloy to be measured is measured every 2 hours within 8 hours, and the power supply is adjusted so that the temperature of the iron-chromium-aluminum alloy to be measured is restored to 1300 ℃, and so on. After 8 hours, the sagging amount of the iron-chromium-aluminum alloy to be measured is measured every 4 hours, and the power supply is regulated, so that the temperature of the iron-chromium-aluminum alloy to be measured is recovered at 1300 ℃, and the like until the total test duration reaches 150 hours.
As another alternative embodiment, if the detected temperature of the to-be-detected iron-chromium-aluminum alloy reaches the first preset test temperature, recording the sagging amount of the to-be-detected iron-chromium-aluminum alloy corresponding to the temperature at the first preset test temperature within the preset test time period, and further including: if the temperature of the iron-chromium-aluminum alloy to be detected reaches the first preset test temperature, taking the time corresponding to the first preset test temperature as the initial time, measuring the sagging amount of the iron-chromium-aluminum alloy to be detected every other preset unit time in the preset time period, and adjusting the power supply to ensure that the temperature of the iron-chromium-aluminum alloy to be detected is kept at the first preset test temperature until the total test duration reaches the preset test duration. The preset unit time period here may be 2 hours.
As another alternative embodiment, the test system may further include a control terminal, the temperature of the iron-chromium-aluminum alloy to be tested may be detected by a non-contact temperature sensor, the non-contact temperature sensor is connected with the control terminal, the control terminal is used for receiving a temperature signal sent by the temperature sensor, and the control terminal has a timing function, detects the temperature of the iron-chromium-aluminum alloy to be tested, and records corresponding sagging amounts of the iron-chromium-aluminum alloy to be tested at different temperatures, and may include:
detecting the temperature of the iron-chromium-aluminum alloy to be detected, recording the sagging amount of the iron-chromium-aluminum alloy to be detected corresponding to the temperature of 1300 ℃ in 150 hours, and recording the sagging amount of the iron-chromium-aluminum alloy to be detected corresponding to the temperature of 1200 ℃ in the next 150 hours until the test of a plurality of temperatures of the iron-chromium-aluminum alloy to be detected is completed. Wherein the plurality of temperatures range between 600 ℃ and 1300 ℃.
If the detected temperature of the iron-chromium-aluminum alloy to be detected reaches the first preset test temperature, recording the sagging amount of the iron-chromium-aluminum alloy to be detected, corresponding to the temperature in the preset test time under the first preset test temperature, wherein the method comprises the following steps:
when the control terminal monitors that the alloy temperature transmitted by the temperature sensor reaches a first preset test temperature, the control terminal starts timing, and the sagging amount of the iron-chromium-aluminum alloy to be measured, which is measured by the distance meter, is obtained and recorded every 2 hours within 8 hours. And adjusting a power supply, and when a temperature signal sent by a temperature sensor is received and kept at a first preset test temperature, acquiring and recording the sagging amount of the iron-chromium-aluminum alloy to be measured, which is measured by a distance meter, every 2 hours until the control terminal finishes timing for 8 hours.
After 8 hours, the sagging amount of the iron-chromium-aluminum alloy to be measured, which is measured by the distance measuring instrument, is obtained and recorded every 4 hours, and the power supply is regulated so that the temperature of the iron-chromium-aluminum alloy to be measured is maintained at a first preset test temperature, and the sagging amount of the iron-chromium-aluminum alloy to be measured, which is measured by the distance measuring instrument, is obtained and recorded every 4 hours until the total test duration reaches the preset test duration.
When the distance meter is an automatic distance meter, the distance meter may be connected to the control terminal, and configured to transmit the measured distance signal to the control terminal. When the range finder is a caliper, a tester measures the sagging amount of the iron-chromium-aluminum alloy to be measured once every 2 hours within 8 hours, and after 8 hours, the tester measures the sagging amount of the iron-chromium-aluminum alloy to be measured once every 4 hours.
Further, in order to ensure that the test can be effectively performed, if the sagging amount of the alloy is detected to reach the preset length in the test process, the test is ended. Wherein the preset length may be between 35-45 mm, for example: the preset length in this application is 40 mm.
In a specific embodiment, before energizing the sample holder, further comprising: measuring initial vertical distance between center position of iron-chromium-aluminum alloy to be measured and operation platform, recording sagging amount of iron-chromium-aluminum alloy to be measured corresponding to different temperatures, comprising: recording the corresponding target vertical distance between the center position of the iron-chromium-aluminum alloy to be detected and the operation platform at different temperatures; and obtaining the sagging amount of the iron-chromium-aluminum alloy to be measured based on the initial vertical distance and the target vertical distance. The center position may be the center of the iron-chromium-aluminum alloy to be measured, or may be the center region position of the iron-chromium-aluminum alloy to be measured.
In a specific embodiment, after the iron-chromium-aluminum alloy to be tested is installed, before the sample fixture is electrified, the method further comprises the following steps: measuring and recording an initial vertical distance of the iron-chromium-aluminum alloy to be measured; and subtracting the target vertical distance from the initial vertical distance to obtain the sagging amount of the iron-chromium-aluminum alloy to be measured.
In the test, the measurement time and the measured sagging amount were recorded, and the data shown in table 1 were obtained:
TABLE 1
Table 1 includes 7 sets of tables of relation between sagging amount and time obtained by testing, and it can be seen from the tables that the sagging amount of the iron-chromium-aluminum alloy to be tested is continuously increased along with the increase of the testing duration. FIG. 4 is a graph showing the change in the sagging amount of an alloy with time corresponding to Table 1, in which the abscissa represents the test time and the ordinate represents the sagging amount of an alloy.
And when the test is finished, adjusting the current to the minimum value, and then adjusting the power supply to a closed state, and if the next group of iron-chromium-aluminum alloy to be tested needs to be continuously measured, starting a power switch after the alloy is installed.
In summary, according to the testing method for detecting collapse performance of the iron-chromium-aluminum alloy provided by the embodiment of the invention, the temperature of the iron-chromium-aluminum alloy to be detected is changed by electrifying the sample clamp, the temperature of the iron-chromium-aluminum alloy to be detected is detected by the temperature detection device, and when the iron-chromium-aluminum alloy to be detected is at different temperatures, the sagging amount of the alloy caused by heating is measured, the collapse condition of the alloy is reflected by the sagging amount, so that the iron-chromium-aluminum alloy with different diameters can be tested by the testing system, the transverse collapse prevention performance of the iron-chromium-aluminum alloy with different diameters and different temperatures is obtained, and the factors favorable for the collapse prevention performance of the alloy are tested.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (10)
1. A test system for detecting collapse performance of an iron-chromium-aluminum alloy, comprising: the device comprises a testing device, a power supply, a range finder and a temperature detection device, wherein the testing device comprises a sample clamp;
the sample clamp is used for transversely suspending and clamping the iron-chromium-aluminum alloy to be tested, the sample clamp is connected with the power supply, and the power supply is used for powering on the sample clamp to heat the iron-chromium-aluminum alloy to be tested;
the temperature detection device is used for detecting the temperature of the iron-chromium-aluminum alloy to be detected, and the range finder is used for measuring the sagging amount of the iron-chromium-aluminum alloy to be detected.
2. The test system of claim 1, wherein the test device further comprises: the sample clamp is connected with the support frame through the insulation column, and the support frame is arranged on the operation platform;
the insulating column is used for isolating the sample clamp from the operation platform, and the supporting frame is used for supporting the sample clamp and the insulating column.
3. The test system of claim 2, wherein the sample holder comprises two oppositely disposed sample holders and the support comprises two oppositely disposed support rods;
each sample clamp is connected with a respective support rod through an independent insulating column, the iron-chromium-aluminum alloy to be tested is transversely fixed between two oppositely arranged sample clamps, the bottoms of the two support rods are arranged on the operation platform through fixing bolts, and the distance between the two support rods can be increased or reduced by loosening the fixing bolts.
4. The test system of claim 1, further comprising: copper line row and wiring end, sample anchor clamps with the one end of copper line row is connected, the other end of copper line row with the wiring end is connected, the wiring end with the power is connected.
5. The test system of claim 4, further comprising: and the cooling fan is arranged close to the copper wire row and used for cooling the copper wire row.
6. A test method for detecting collapse performance of an iron-chromium-aluminum alloy, applied to the test system according to any one of claims 1 to 5, wherein the test method comprises:
selecting a plurality of iron-chromium-aluminum alloys with different diameters as iron-chromium-aluminum alloys to be tested;
transversely suspending and clamping the iron-chromium-aluminum alloy to be tested by using a sample clamp aiming at each iron-chromium-aluminum alloy to be tested;
energizing the sample holder;
detecting the temperature of the iron-chromium-aluminum alloy to be detected, and recording the sagging amount of the iron-chromium-aluminum alloy to be detected corresponding to different temperatures.
7. The method according to claim 6, wherein before the sample holder for the iron-chromium-aluminum alloy to be tested is laterally suspended, the method further comprises:
straightening operation is carried out on the iron-chromium-aluminum alloy to be detected, and after the iron-chromium-aluminum alloy to be detected is transversely suspended and clamped by a sample clamp, the iron-chromium-aluminum alloy to be detected further comprises: and loosening the support frame fixing bolt.
8. The method according to claim 6, wherein detecting the temperature of the iron-chromium-aluminum alloy to be tested and recording the sagging amounts of the iron-chromium-aluminum alloy to be tested corresponding to different temperatures comprises:
if the temperature of the iron-chromium-aluminum alloy to be detected reaches a first preset test temperature, recording the sagging amount of the iron-chromium-aluminum alloy to be detected, corresponding to the temperature at the first preset test temperature, in a preset test time period;
if the temperature of the iron-chromium-aluminum alloy to be detected reaches a second preset test temperature, recording the sagging amount of the iron-chromium-aluminum alloy to be detected, corresponding to the temperature in the preset test time at the second preset test temperature.
9. The method of testing of claim 6, wherein prior to energizing the sample holder, further comprising: measuring an initial vertical distance between the center position of the iron-chromium-aluminum alloy to be measured and an operation platform, and recording corresponding sagging amounts of the iron-chromium-aluminum alloy to be measured at different temperatures, wherein the method comprises the following steps:
recording the corresponding target vertical distance between the center position of the iron-chromium-aluminum alloy to be detected and the operation platform at different temperatures;
and obtaining the sagging amount of the iron-chromium-aluminum alloy to be detected based on the initial vertical distance and the target vertical distance.
10. The method according to claim 6, wherein selecting a plurality of different diameters of the iron-chromium-aluminum alloy as the iron-chromium-aluminum alloy to be tested comprises:
and selecting a plurality of iron-chromium-aluminum alloys with diameters ranging from 2 mm to 10 mm as iron-chromium-aluminum alloys to be tested.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117250149A (en) * | 2023-11-10 | 2023-12-19 | 佛山市峻溙铝业有限公司 | Aluminum profile production detection device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117250149A (en) * | 2023-11-10 | 2023-12-19 | 佛山市峻溙铝业有限公司 | Aluminum profile production detection device |
| CN117250149B (en) * | 2023-11-10 | 2024-01-16 | 佛山市峻溙铝业有限公司 | Aluminum profile production detection device |
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