CN111239037A - Periodic infiltration corrosion test box - Google Patents
Periodic infiltration corrosion test box Download PDFInfo
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Abstract
The invention discloses a periodic infiltration corrosion test box, which comprises a first solution tank arranged in a box body, wherein a test wheel fixed on a main shaft is arranged in the tank, and the periodic infiltration corrosion test box is characterized in that: a second solution tank is arranged beside the first solution tank, and test wheels fixed on the same main shaft are arranged in the second solution tank; the first solution tank and the second solution tank are consistent in size and liquid level height when containing solutions; test bars are fixed on the test wheels at equal intervals; the test wheel is correspondingly provided with a baking lamp. The test box can realize the weekly leaching corrosion comparison test of two different metals or alloys simultaneously under the same corrosion environment under the condition that the same solution tank is required to be only immersed in the same metal or alloy; the device has the function of automatically supplementing the solution, and ensures the stability of the experimental environment; the capacity is large, and the test efficiency is greatly improved; the consistency of the corrosion rate among the parallel samples and the repeatability of the test are improved.
Description
Technical Field
The invention relates to a periodic infiltration corrosion test box, in particular to a dual-liquid-tank periodic infiltration corrosion test box.
Background
The periodic infiltration corrosion test box is an artificial climate corrosion test box, is a corrosion test box for simulating an atmospheric corrosion environment, is suitable for corrosion tests of protective film layers of various metal materials, paint coatings and the like, and has the reliable function of accelerating the corrosion of a simulation sample on a test piece in the environments of saline solution infiltration, dry-wet alternation, infrared lamp radiation baking and the like so as to check the adaptability and reliability of products, components and raw materials of the products, and the like in the climate environment.
Two similar standards of the current periodic infiltration corrosion test method are provided, namely a TB/T2375 railway weathering steel periodic infiltration corrosion test method regulation and a GB/T19746-2005 metal and alloy corrosive salt solution periodic immersion test in Chinese national standards, and equipment used in the standards comprises a wheel type periodic infiltration corrosion test box and a lifting type periodic infiltration corrosion test box.
1-4 test wheels are adopted in the wheel type periodic infiltration corrosion test box, and one solution tank is shared, so that the following problems exist: (1) the space in the box body is not large, the number of the test samples at one time is limited within 45, and the requirement of a contrast test of a large quantity of various materials in the same environment cannot be met; (2) in a specific test, a periodic infiltration contrast test of two metals, alloys or surface coatings in the same corrosion environment cannot be realized when only the same metal, alloy or surface coating is allowed to be immersed in one solution tank.
The lift type periodic infiltration corrosion test box has the following problems in practical application: (1) non-uniformity of temperature: the two rows of samples close to the far infrared heating lamp tube have higher surface temperature, can be dried in a shorter time after being soaked, and the farther the distance from the lamp tube is, the longer the drying time is, so that the states of the surfaces of the materials are different, and the difference of the corrosion rates of the parallel samples is large; (2) the far infrared lamp tube heating mode enables the temperature overshoot phenomenon in the box body to be prominent, the overshoot value reaches nearly 10 ℃, and the difference between the overshoot value and the standard requirement of 45 +/-5 ℃ is larger; (3) the space is less in the box, and the quantity of once experimental sample is restricted to 24, when carrying out the material test more than three kinds simultaneously, firstly the sample can the adhesion, and secondly the corrosive environment difference of sample is very big, can not guarantee experimental precision.
In addition, the solution of the existing test box gradually becomes less in the test process, the solution needs to be supplemented in a manual mode, the instant solution supplementation cannot be realized, and the stability of the test conditions and the test environment cannot be completely ensured.
Disclosure of Invention
The purpose of the invention is as follows: the invention provides a double-liquid-tank periodic infiltration corrosion test box which can realize periodic infiltration corrosion comparison tests of two different metals, alloys or surface coatings under the same corrosion environment under the condition that the same solution tank is only required to be immersed in the same metal, alloy or surface coating in a specific test, and can improve the test precision.
The technical scheme is as follows: the technical scheme adopted by the invention is that the periodic infiltration corrosion test box comprises a first solution tank arranged in a box body, wherein a test wheel fixed on a main shaft is arranged in the tank, and the periodic infiltration corrosion test box is characterized in that: a second solution tank is arranged beside the first solution tank, and test wheels fixed on the same main shaft are arranged in the second solution tank; the first solution tank and the second solution tank are consistent in size and liquid level height when containing solutions; test bars are fixed on the test wheels at equal intervals; the test wheel is correspondingly provided with a baking lamp.
Preferably, the test chamber is further provided with a first solution supplementing groove and a second solution supplementing groove for supplementing the first solution groove and the second solution groove, and the first solution supplementing groove and the second solution supplementing groove are controlled by the control system. Further preferably, the first solution replenishing tank is used for inputting the original solution into the first solution tank and the second solution tank at the initial stage of the test, and the second solution replenishing tank is used for replenishing the solution into the first solution tank and the second solution tank during the test. Further preferably, when the industrial atmosphere test is simulated, the solution concentration of the second liquid replenishing tank is twice of the original solution concentration of the first liquid replenishing tank; when the marine atmosphere test is simulated, the solution of the second liquid supplementing tank is distilled water.
Preferably, a plurality of test wheels are arranged in the first solution tank and the second solution tank, and the test wheels of each tank are uniformly arranged. More preferably, the number of the plurality of test wheels in the first solution tank is three, and the number of the plurality of test wheels in the second solution tank is two. More preferably, the number of the plurality of test wheels in the first solution tank is three, and the number of the plurality of test wheels in the second solution tank is three.
Preferably, the main shaft is driven by a motor, and is rotated by a coupling and a speed reducer.
Preferably, the test box is further provided with a temperature adjusting device, and the temperature adjusting device comprises a heating module, a cooling module, a first temperature sensor, a second temperature sensor and a circulating fan. Further preferably, the heating module, the cooling module and the first temperature sensor are used for regulating and controlling the temperature in the box body; the second sensor is connected with each baking lamp and is independently controlled; and the circulating fan is used for self-circulation of air in the box body.
Preferably, the test chamber is further provided with a humidity adjusting device. Further preferably, the humidity adjusting device comprises a humidifying module and a humidity sensor, and is used for adjusting and controlling the humidity in the box body.
Preferably, the number of the test rods is 15, and the test rods are used for fixing the test sample.
Preferably, the baking lamp (4) for baking the test wheel is an infrared baking lamp. Further preferably, the surface temperature of the sample is controlled to be 65-75 ℃ when the infrared baking lamp is baked. More preferably, the surface temperature of the sample is controlled at 70 ℃ when the infrared baking lamp is baked
Preferably, the temperature in the test box is controlled to be 40-50 ℃, and the control precision is 0-4 ℃. Further preferably, the temperature inside the test chamber is controlled at 45 ℃.
Preferably, the humidity in the test box is controlled to be 50-95% RH, and the control precision is less than or equal to 5% RH. Further preferably, the humidity inside the test chamber is controlled at 75% RH.
Preferably, the rotating speed of the main shaft is 1-4 weeks/h. Further preferably, the rotation speed of the main shaft is 1 cycle/h.
Preferably, the first solution tank and the second solution tank are both provided with a heating device and a stirring device, and the heating device and the stirring device are connected with a control system. Further preferably, the stirring device comprises a first stirring device and a second stirring device, the first stirring device is used for independently stirring the first solution tank or the second solution tank, and when the first solution tank and the second solution tank work simultaneously, the second stirring device is used for realizing that the first solution tank is used for infusing the liquid into the second solution tank and then the liquid is refluxed into the first solution tank from the second solution tank.
Preferably, the external plate of the box body is made of stainless steel materials in a welded mode, the internal plate of the outer box body is made of corrosion-resistant materials, and heat-insulating materials are arranged between the internal plate and the external plate.
Preferably, the main shaft is made of a non-metal corrosion-resistant material.
Preferably, the control system is further connected with a safety protection device for controlling the power utilization safety of the test box.
Has the advantages that: compared with the prior art, the invention has the following remarkable advantages:
(1) the double-liquid-tank periodic infiltration corrosion test box can realize periodic infiltration corrosion comparison tests of two different metals, alloys or surface coatings under the same corrosion environment under the condition that the same solution tank is only required to be immersed in the same metal, alloy or surface coating in a specific test;
(2) according to the double-liquid-tank periodic infiltration corrosion test box, the temperature and humidity control precision error in the box body is small, the infiltration time, the drying time and the running period precision deviation of the sample are small, the corrosion rate consistency of the parallel samples can be ensured, the test precision is improved, and the corrosion rate error among the parallel samples is less than 1.3%;
(3) the double-liquid-tank periodic infiltration corrosion test box has the function of automatically supplementing the solution, realizes that an outer box body does not need to be opened in a test period, and ensures the stability of the test environment;
(4) the double-liquid-tank periodic infiltration corrosion test box has large capacity, each test wheel can carry out the test of 5 groups (3 samples in each group) of different material samples, 5 or 6 test wheels can be arranged in the test box, the periodic infiltration corrosion test of 90 samples in total in the same corrosion environment can be simultaneously carried out, and the test efficiency is greatly improved;
(5) the double-liquid-tank periodic infiltration corrosion test box realizes the functions of automatic operation and unmanned operation, and further improves the test efficiency.
Drawings
FIG. 1 is a schematic view of the internal structure of the case of the present invention;
FIG. 2 is a schematic side view of a test wheel according to the present invention;
fig. 3 is a schematic diagram of the working principle of the fluid infusion system of the invention.
Detailed Description
The technical solution of the present invention is further described below with reference to the accompanying drawings and examples.
The periodic infiltration corrosion test box can determine the appropriate number of test wheels according to actual needs, and the following embodiment adopts a double-liquid-tank test box provided with five test wheels.
Example 1
As shown in fig. 1, fig. 2 and fig. 3, the periodic infiltration corrosion test chamber of the present embodiment includes a chamber body, a first solution tank 1, a second solution tank 2, five test wheels 3, an infrared baking lamp 4, a transmission device, a temperature adjusting device, a humidity adjusting device, an automatic liquid replenishing device, a solution heating device, a solution stirring device and a control system 7. The first solution tank 1, the second solution tank 2, the five test wheels 3, the infrared baking lamp 4, the solution heating device and the solution stirring device form a compartment in the box body, and an air outlet 23 is formed in the compartment; a temperature regulating device, a humidity regulating device, a transmission device, an automatic liquid replenishing device and a control system 7 are arranged outside the compartment. The box body is formed by welding 316L stainless steel angle steel to serve as a test box frame, the 316L stainless steel material is adopted for plastic spraying, the thickness delta of the stainless steel plate is not smaller than 1mm, the firmness and firmness of the box body strength are guaranteed, and the corrosion resistance and the ageing resistance of the whole equipment are guaranteed. The whole inner plate of the outer box body is formed by welding high-temperature-resistant and corrosion-resistant PP plates with the thickness of more than 8mm, and superfine glass fiber cotton heat-insulating materials are clamped between the plates for heat insulation. The front side of the outer box body is also provided with a transparent organic glass test observation window with the thickness of more than 5 mm.
The volume of this proof box is 0.65 cubic meter, has set up the first solution groove 1 and the second solution groove 2 of the size unanimity in the box for hold solution, solution groove be wide trapezoidal shape down in the top, the size is 560 on the bottom 500mm, the bottom 400 on the bottom 500mm and height 200 mm. The two solution tanks are communicated through a pipeline and are respectively controlled by a valve, the liquid level heights are consistent when 30L of solution is filled, the corresponding liquid level heights are both 170mm, and the maximum depth of a sample immersed in the solution reaches 100 mm. The first solution tank 1 and the second solution tank 2 are both provided with an independent heating device and two sets of stirring devices, the two sets of stirring devices comprise a first stirring device and a second stirring device, the first stirring device is used for independently stirring the first solution tank 1 or the second solution tank 2 respectively, and when the first solution tank 1 and the second solution tank 2 work simultaneously, the second stirring device realizes that the first solution tank 1 infuses the second solution tank 2 and then the second solution tank 2 flows back to the first solution tank 1. Wherein agitating unit adopts no heat centrifugal circulation pump, avoids traditional water pump to influence the cell body temperature field because of self heat production.
Five test wheels 3 with the diameter of 550mm are arranged in the test box body, the first solution tank 1 works correspondingly to be provided with three test wheels 3, the second solution tank 2 works correspondingly to be provided with two test wheels 3, and the edge of each test wheel 3 is 8mm away from the bottom of each solution tank. Every test wheel 3 comprises two circular curb plates 5 and fifteen test bars 6, and two circular curb plates 5 are corrosion-resistant nonmetal board, and the interval is 105mm, and it is fixed that the test bar 6 partition of PP is through fifteen materials between two circular curb plates 5, and 6 diameters phi 30mm of test bar, 6 centre-to-centre distances of test bar are 50mm from the test wheel edge, and test bar 6 is used for fixed sample. The top edge of every experimental wheel 3 is fixed with infrared baking lamp 4 near on the box inner chamber curb plate, and infrared baking lamp 4 carries out independent control, toasts district's sample surface temperature control range 65 ~ 75 ℃. The test box has large capacity, and can simultaneously carry out a cycle infiltration corrosion test of seventy five samples of five test wheels in the same corrosion environment.
The transmission device, the temperature adjusting device, the humidity adjusting device, the automatic liquid supplementing device, the solution tank heating device and the automatic stirring device of the test box are respectively connected with a control system, and the control system is connected with a touch display device.
The transmission device comprises a main shaft 8, a stepping motor 9, a coupler 10 and a speed reducer 11, the transmission device is driven by the stepping motor 9, the main shaft 8 rotates through the coupler 10 and the speed reducer 11, the rotating speed of the main shaft 8 is adjustable and controllable between 1 week/h and 4 weeks/h, and the transmission device is made of non-metal corrosion-resistant materials. Five test wheels 3 are connected in series on the main shaft 8 at equal intervals, the interval between the two wheels is 100mm, and each test wheel 3 is fixed on the main shaft 8 in a keyway manner, so that the test wheels 3 can be fixed and detached conveniently.
The temperature adjusting device includes a heating module 12, a cooling module 13, a first temperature sensor 14, a second temperature sensor 15, and a circulation fan 16. Wherein, heating module 12 adopts the interior air control box temperature of heating box, and cooling module 13 adopts the mode of spouting into interior box through the air conditioning pipeline to the box temperature cooling, realizes adjustable controllable in 40 ~ 50 ℃, and the temperature control precision is 2 ℃. The first temperature sensor 14 controls the heating module 12 and the cooling module 13 to be started and stopped through the control system 7, so that the requirement of temperature control is met. The second sensor 15 is connected with the infrared baking lamp 4 and independently controls the infrared baking lamp 4 through the control system 7. In order to ensure the temperature in the box body to be uniform, the circulating fan 16 is arranged in the box body to promote the self-circulation of air in the box body, and the circulating fan 16 can carry out frequency conversion regulation and control to control the evaporation capacity of the solution to be controllable and ensure that the loss capacity of the solution in each solution tank is controlled to be 2.5-3.5L/day.
The humidity adjusting device comprises a humidifying module 17 and a humidity sensor 18 and is used for adjusting and controlling the humidity in the box body. Wherein, the humidification module 17 adopts the mode of spouting the moisture into the interior box through the wet gas pipeline to control box internal humidity, realizes that humidity 50 ~ 95% RH is adjustable controllable, and humidity control accuracy is for being less than or equal to 5% RH. The humidity sensor 18 controls the humidification module 17 to start and stop through the control system 7, so as to meet the requirement of humidity control.
The automatic fluid replenishing device includes a first fluid replenishing tank 19, a second fluid replenishing tank 20, two level meters 21, and two fluid replenishing pumps 22. When the test is started, the control system 7 controls the solution replenishing pump 22 to load the solution in the first solution replenishing tank 19 into the first solution tank 1 and the second solution tank 2, and when the common region corresponding to the sector angle of 72 degrees of the five test wheels is observed to be immersed in the solution, the liquid level switch is operated to stop the loading of the solution in the first solution replenishing tank 19. At this time, the volume of the solution in the first solution tank 1 and the second solution tank 2 was 30L, the height of the solution was 170mm, and the distance from the center of the sample rod 6 to the bottom of the solution tank was 12 mm. In the test process, when the liquid level height detected by the liquid level meter 21 is lower than a set value, the control system 7 controls the liquid supplementing pump 22 to be started, and the solution in the second liquid supplementing tank 20 is supplemented into the first solution tank 1 or the second solution tank 2; when the liquid level height detected by the liquid level meter 21 reaches a set value, the control system 7 controls the liquid replenishing pump 22 to be closed, and the loading of the solution in the second liquid replenishing tank 20 is stopped. Because the liquid level is reduced due to the reaction and evaporation of the solution in the test process, when the industrial atmosphere simulation test is carried out, the concentration of the solution in the second liquid supplementing groove 20 is twice of the concentration of the original solution in the first liquid supplementing groove 19, when the marine atmosphere simulation test is carried out, the solution in the second liquid supplementing groove 20 is distilled water, the consumed test solution is supplemented by the supplementing solution, and meanwhile, the liquid level height is controlled to ensure that the soaking time and the drying time are controlled within the standard range. The automatic liquid supplementing device is also provided with a manual valve, and can directionally supplement the solution into a designated solution tank in the box body.
The control system is also provided with a safety protection device, and when the first solution tank 1 and the second solution tank 2 are at low liquid levels, the power supply is automatically cut off; automatically cutting off the power supply of the heater when the temperature is over; and the leakage protection function is used for preventing personal injury and instrument faults caused by circuit leakage or short circuit. In order to ensure that the test box can work continuously without being watched by people for a long time and improve the working efficiency, the safety protection device also comprises power failure protection, short circuit protection, overheating protection, water shortage protection, equipment grounding protection and the like.
In this embodiment, a double-liquid-tank circumferential immersion corrosion test chamber is used to simulate an industrial atmosphere for a 168-hour periodic immersion corrosion test, and a high-end steel sample S355J2W and a common steel sample Q235A are used to evaluate the test effect consistency of two steel materials in different liquid tanks and the corrosion consistency between parallel samples, so as to test the test accuracy of the test chamber, which specifically includes the following steps:
(1) hanging a sample: respectively hanging 3 steel samples S355J2W and Q235A on two test wheels in the first solution tank 1, and respectively hanging 3 steel samples S355J2W and Q235A on two test wheels in the second solution tank 2 in the same way, and marking the steel samples;
(2) preparation of test solutions: closing the outlet valve of the second solution supplementing tank 20, opening the outlet valve of the first solution supplementing tank 19, pouring the prepared test solution into the first solution supplementing tank 19, and pouring the prepared supplementing solution into the second solution supplementing tank 20;
(3) setting the test conditions: starting a power supply of the test box, setting test conditions according to test requirements, controlling the internal temperature of the test box to be 45 ℃, the humidity to be 70% RH, the surface temperature of a sample in a baking area to be 70 ℃, the working time to be 168 hours, controlling the rotating speed of a main shaft 8 to be 1 week/h, and adjusting the frequency of a circulating air volume frequency converter to be 25HZ so as to control the loss amount of the solution in each solution tank to be 3L/day;
(4) loading with test solution: closing the solution self-discharging valve, starting a working button of the test box, driving the test solution in the first solution supplementing groove 19 into the first solution groove 1 and the second solution groove 2 in the box body by the liquid supplementing pump 22, or driving the test solution into a specified solution groove in the box body through the valve switch orientation, and when the solution in the groove reaches 30L, actuating the solution liquid level switch, and stopping the liquid supplementing pump 22; in the test process, an outlet valve of the first liquid supplementing tank 19 is closed, an outlet valve of the second liquid supplementing tank 20 is opened, when the liquid level detected by the liquid level meter 21 is lower than a specified height, the liquid supplementing pump 22 works to pump the supplementing solution of the second liquid supplementing tank 20 into the first solution tank 1 and the second solution tank 2, or the supplementing solution is directionally pumped into a specified solution tank in the box body through a valve switch, and the liquid level of the solution is always kept at the specified height;
(5) the test was carried out: starting a test button to start a test, wherein the test process does not need to be unpacked, and when the test time reaches the specified time, a power supply is turned off to perform sampling;
(6) and (3) completing the test: opening the solution self-discharging valve, discharging the test solution, and cleaning the solution tank and the solution supplementing tank.
Example 2
The same as example 1, except that two high-end steel samples S355J2W and SM490 and a common steel sample Q235A were used, 3 steel samples SM490 and Q235A were respectively hung on two test wheels in the first solution tank, and 3 steel samples S355J2W and Q235A were respectively hung on two test wheels in the second solution tank, and the corrosion resistance of the two high-end steel samples SM490 and S355J2W compared with the common steel sample Q235A was evaluated.
Example 3
The same as example 1, except that two high-end steel samples S355J2W and SM490 and a common steel sample Q235A were used, 3 steel samples S355J2W, SM490 and Q235A were hung on three test wheels in the first solution tank, and 3 steel samples S355J2W and SM490 were hung on two test wheels in the second solution tank, respectively, to evaluate the corrosion resistance of the two high-end steel samples in the same tank under the same environment.
Example 4
The same as example 1, except that two high-end steel samples S355J2W and SM490 were used, 3 steel samples SM490 were hung on one test wheel in the first solution tank, and 3 steel samples S355J2W were hung on one test wheel in the second solution tank, and the corrosion resistance of the two steels was evaluated under independent environments.
Comparative example 1
The method comprises the steps of adopting the existing single-groove periodic infiltration corrosion test box, hanging 3 steel samples of S355J2W, Q235A and SM490 on a single-groove test wheel, simulating industrial atmosphere according to a conventional test flow to carry out a 168-hour periodic infiltration corrosion test, and carrying out comparative evaluation on corrosion test effects of two different periodic infiltration test boxes.
Comparative example 2
In the same manner as in comparative example 1, 3 steel samples of S355J2W were hung on a single-groove test wheel.
The corrosion rates of the parallel samples and the corrosion rate errors among the parallel samples in examples 1 to 4 and comparative examples 1 to 2 were counted and calculated, and the specific results are shown in tables 1 and 2 for comparison.
TABLE 1 Corrosion Rate (g/(m) of parallel samples of examples 1 to 4 and comparative examples 1 to 22·h))
TABLE 2 Corrosion Rate error between parallel samples of examples 1-4 and comparative examples 1-2
Wherein, the calculation formula of the corrosion rate error is as follows: (maximum corrosion rate-minimum corrosion rate)/maximum corrosion rate.
As can be seen from tables 1 and 2, in example 1, the error in the corrosion rate between the parallel samples of the same steel material in the first solution tank and the second solution tank is less than 1.2%, and it can be seen that the corrosion rates in the two liquid tanks are substantially the same and the difference is small. Example 2 compared with example 1, the average corrosion rate error of the same steel material Q235A is 0.13% at most, the repeatability difference of the test is very small, and the test can be repeated. Compared with the example 2, when a plurality of steel samples are co-located in one liquid tank, the average corrosion rate slightly rises, although the amplitude is not large, the test with the accurate requirement is greatly influenced, and therefore the test result is more reliable by using the double-liquid-tank test box provided by the invention under special test conditions. Example 4 compared with examples 2 and 3, the average corrosion rate of the single sample SM490 was reduced by a maximum of 2.5%, which provides more accurate test results for the immersion corrosion tests of different baths in the same environment for comparative evaluation of high end steels.
By adopting the existing single-liquid-tank test box, in the comparative example 1, the maximum error of the corrosion rate between the parallel samples of the same steel material Q235A reaches 16.52%, and in the comparative example 3, the maximum error of the corrosion rate between the parallel samples of the same steel material Q235A in the first solution tank is 1.24%, so that the error value is too large. In comparative example 2, the error of the corrosion rate between the parallel samples of the same steel material S355J2W reached 16.88%, and in comparative example 4, the error of the corrosion rate between the parallel samples of the same steel material S355J2W was 0.34%, which was also excessive.
From the above, the double-liquid-tank periodic infiltration corrosion test box has the advantages that firstly, no matter the double-liquid-tank periodic infiltration corrosion test box is high-end steel or common steel, the corrosion rate error between the parallel samples is less than 1.3 percent and is far lower than that between the parallel samples of the single-liquid-tank test box; secondly, the cycle immersion corrosion test of the same steel grade in the same cycle has high repeatability, and the error value of the average corrosion rate is very small.
Claims (10)
1. The utility model provides a cycle infiltration corrosion test case, is provided with in the inslot and fixes test wheel (3) on main shaft (8) including setting up first solution groove (1) in the box, its characterized in that: a second solution tank (2) is arranged beside the first solution tank (1), and a test wheel (3) fixed on the same main shaft (8) is arranged in the second solution tank (2); the first solution tank (1) and the second solution tank (2) are consistent in size and liquid level height when containing solutions; test bars (6) are fixed on the test wheel at equal intervals; the test wheel (3) is correspondingly provided with a baking lamp (4).
2. The periodic immersion corrosion test chamber of claim 1, wherein: a first solution supplementing tank (19) and a second solution supplementing tank (20) for supplementing the first solution tank (1) and the second solution tank (2) with liquid are further arranged, and the first solution supplementing tank (19) and the second solution supplementing tank (20) are controlled by a control system (7).
3. The periodic immersion corrosion test chamber of claim 2, wherein: the first solution supplementing tank (19) is used for inputting original solutions into the first solution tank (1) and the second solution tank (2) in the initial stage of the test, and the second solution supplementing tank (20) is used for supplementing the solutions into the first solution tank (1) and the second solution tank (2) in the process of the test.
4. The periodic immersion corrosion test chamber of claim 1, wherein: a plurality of test wheels (3) are arranged in the first solution tank (1) and the second solution tank (2), and the test wheels of each tank are uniformly arranged.
5. The periodic immersion corrosion test chamber of claim 4, wherein: the number of the test wheels (3) in the first solution tank (1) is three, and the number of the test wheels (3) in the second solution tank (2) is two.
6. The periodic immersion corrosion test chamber of claim 1, wherein: the main shaft (8) is driven by a motor (9), and the main shaft (8) is rotated through a coupling (10) and a speed reducer (11).
7. The periodic immersion corrosion test chamber of claim 1, wherein: the test box is further provided with a temperature adjusting device, and the temperature adjusting device comprises a heating module (12), a cooling module (13), a first temperature sensor (14), a second temperature sensor (15) and a circulating fan (16).
8. The periodic immersion corrosion test chamber of claim 7, wherein: the heating module (12), the cooling module (13) and the first temperature sensor (14) are used for regulating and controlling the temperature in the box body; the second sensor (15) is connected with each baking lamp (4) and is independently controlled; and the circulating fan (16) is used for self-circulation of air in the box body.
9. The periodic immersion corrosion test chamber of claim 1, wherein: the test box is further provided with a humidity adjusting device, and the humidity adjusting device comprises a humidifying module (17) and a humidity sensor (18) and is used for adjusting and controlling the humidity in the box body.
10. The periodic immersion corrosion test chamber of claim 1, wherein: the baking lamp (4) for baking the test wheel is an infrared baking lamp.
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| CN112525809A (en) * | 2020-11-20 | 2021-03-19 | 西南交通大学 | Efficient and convenient periodic infiltration corrosion test system and use method thereof |
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| CN101685061A (en) * | 2008-09-23 | 2010-03-31 | 宝山钢铁股份有限公司 | Simulation accelerated test method and device of corrosion performance of metal in atmosphere |
| CN106483064A (en) * | 2016-12-22 | 2017-03-08 | 马鞍山钢铁股份有限公司 | A kind of accelerated corrosion experimental rig and accelerated corrosion test method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101685061A (en) * | 2008-09-23 | 2010-03-31 | 宝山钢铁股份有限公司 | Simulation accelerated test method and device of corrosion performance of metal in atmosphere |
| CN106483064A (en) * | 2016-12-22 | 2017-03-08 | 马鞍山钢铁股份有限公司 | A kind of accelerated corrosion experimental rig and accelerated corrosion test method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112525809A (en) * | 2020-11-20 | 2021-03-19 | 西南交通大学 | Efficient and convenient periodic infiltration corrosion test system and use method thereof |
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Application publication date: 20200605 |