CN103115864A - Indoor simulation/rapid assessment device for comprehensive atmospheric environment corrosion - Google Patents
Indoor simulation/rapid assessment device for comprehensive atmospheric environment corrosion Download PDFInfo
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Abstract
The invention relates to an indoor simulation/rapid assessment device for comprehensive atmospheric environment corrosion, and belongs to the technical field of indoor simulation/rapid assessment devices for the corrosion of materials. The device comprises a control panel, a main work box, an ultraviolet lamp tube, a lifting mechanism, a temperature control and feedback system, a humidity control and feedback system and a hot and cold air system. The temperature control and feedback system, the humidity control and feedback system, the ultraviolet lamp tube and the hot and cold air system are controlled by the control panel to carry out environmental simulation on a test sample in the main work box. The device is simple in structure, low in manufacturing cost, high in work stability and accurate in test parameter control, not only can simulate the corrosion process of a material component under single conditions, such as constant temperature and constant humidity, alternation of wetting and drying and ultraviolet irradiation, but also can simulate the corrosion behaviors and processes of the material component under the synergistic action of multiple factors, and is particularly applicable to the indoor simulation and rapid assessment of the corrosion under the comprehensive action of the multiple factors in an atmospheric environment.
Description
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Technical field
A kind of device of indoor comprehensive simulation/Fast Evaluation atmospheric environment corrosion, belong to material corrosion lab simulation/Fast Evaluation device technique field, relate to specifically a kind of lab simulation for each metalloid material and the evaluation of metal-base composites atmospheric corrosion performance/Fast Evaluation device.
Background technology
The corrosion that material or part occur under atmospheric environment is called atmospheric corrosion.When metallic material components is placed in atmospheric environment, Direct precipitation due to moisture (rain, snow), or the cohesion that causes of the humidity of atmosphere or temperature variation and other various reasons, can form one deck moisture film that is difficult for seeing as thin as a wafer on its surface, when this layer of moisture film reaches 20-30 molecular thickness, it just can become the needed electrolyte liquid film of galvanic corrosion.If metal material surface is just in pure moisture film, generally can not cause strong galvanic corrosion, but the corrosive gas that the moisture film formed under atmospheric environment often contains water miscible salt and dissolves in, so surface and the outside surface protective layer thereof of the corroding metal member that this layer of moisture film can be strong.
From the environment for use of material, there is the material that surpasses 80% all to use in atmospheric environment.Although atmospheric environment itself is not a very serious corrosion environment, because the amount of the material used under atmospheric environment is very large, the annual component failure caused due to atmospheric corrosion accounts for the over half of all corrosion failures.Material under arms in process through the erosion of climate, chemistry, thermal environment, the action intensity of these environmental factors curve over time is Environmental Spectrum, because Chinese Regional is vast, the geographical environment complex, north and south is across three macroclimate districts, and thing height above sea level differs more than 4000 meter, the quantity of precipitation of bringing is thus northwestwards reduced in inland gradually by southeastern coast, the annual warm and moist in temperature south, the puna of northern cold arid and Structure Dynamics In The Qinghai-tibet Region, so the Environmental Spectrum of atmosphere is very complicated.Add that opening-up of china is progressively from coastal expansion upcountry, the waste gas (NO of modern industry discharge
x, SO
xdeng) enter air, after these have corrosive gas and atmosphere mix, form with spontaneous phenomenons such as the cohesion of the moisture in atmosphere and sleet the material members surface that electrolyte solution is attached to exposure, make the influence factor of atmospheric environment more diversified, these factors and Environmental Spectrum thereof are huge to the corrosion impact of material, and the atmospheric corrosion of therefore studying under the varying environment condition is extremely important.
The material atmospheric corrosion test mainly is divided into two kinds at present, a kind of is to set up Atmospheric Corrosion Test Sites to carry out hanging test under various typical atmospheric environment, hanging test is material the most real corrosion data under concrete environment for use, but there is lacing film in hanging test, amount is large, test period is long, data discrete is large, be not easy to observe at any time and test and can't obtain the shortcomings such as corrosion data much more even same sample comes and goes in two places, also need a large amount of manpowers simultaneously, the support of material resources and financial resources, therefore the fund input that obtains one group of corrosion data needs is large, time is long, all very poor to the ageing and economy of designing and developing, another kind is by exploitation lab simulation atmospheric corrosion and accelerator, carry out corrosion behavior and the process of simulation material under the real atmosphere environment, the lab simulation accelerated test can be in the short period of time to material the decay resistance under a certain specific environment simulated and estimated, have simple to operate, test condition precise control, favorable reproducibility and can simultaneously simulate the advantages such as material corrosion behavior under the varying environment condition as a result, the aspects such as the corrosion behavior to research material under atmospheric environment, mechanism and developing material all have great importance.
Upper to address, the Environmental Spectrum of atmospheric corrosion is very complicated, and atmospheric corrosion is the result under the many factors acting in conjunction, and Atmospheric Corrosion behavior and process can not simply be investigated the impact of single factors on material corrosion.Atmospheric corrosion not only is subject to the control of the galvanic corrosion of material members surface moisture film, also with temperature, atmospheric humidity, average wetted time, wind speed, sunshine-duration, airborne solid particulate matter and air in harmful gas (NO
x,sO
xdeng) the factors such as content relation is arranged, and the synergy between different factors can further be accelerated the corrosion of material members, such as, when the member that surface scribbles polymeric coating layer is used in atmospheric environment, be subject to ultraviolet irradiation, aging and cracking occurs in the polymeric coating layer on surface, corrosive medium infiltrates along crackle, macromolecule or even matrix to coating inside produce corrosion, corrosion product destroys the interface combination of coated substrate on the one hand, on the other hand because volumetric expansion produces extruding to coating, produce bubbling and pore, accelerated the carrying out of breakdown of coating process, caused the generation in advance of component failure.
In sum, atmospheric corrosion is a multifactor symphyogenetic result, and also there is very large difference in the Environmental Spectrum of each single factors in different regions, for more objectively going the corrosive nature of evaluating material member, lab simulation accelerated corrosion equipment is answered the impact that considers various corrosion factors and Environmental Spectrum as much as possible, therefore, seek a kind of can reflect material members under arms in process the indoor comprehensive of corrosion behavior simulation fast appraisement method extremely important.
Summary of the invention
The invention provides a kind of device of indoor comprehensive simulation/Fast Evaluation atmospheric environment corrosion, this device comprises control panel, main work box, ultraviolet lamp tube, elevating mechanism, temperature control and feedback system, humidity control and feedback system, cold-hot wind system and accessory system; The parameter display dial plate that device top is the device subsystems, comprising temperature display watch 1, humidity display table 2, air quantity wind-warm syndrome indicator gauge 3, ultraviolet irradiation power indicator gauge 4, sample soak time indicator gauge 7, sample hang time indicator gauge 8, middle part is main work box and rotary control panel 6, control panel 6 is used for arranging the temperature of tank solution and main work box temperature, humidity, wind speed, the ultraviolet lamp tube irradiation power, the sample soak time, the parameters such as sample hang time, also be provided with an in particular cases emergency stop switch of equipment above control panel 6.Bottom is the accessory systems such as gear train, cold-hot wind system and frequency modulation motor, humidifying device, concrete is equipped with frequency modulation motor 30 between two parties for lower left side, frequency modulation motor be installed on four bars in the middle of the device bottom and synchronize rotating module 28 and be connected, for rotating module provides power, the synchronous rotating module 28 of four bars is connected with the slide block 26 that is positioned at device master work box bottom elevating mechanism by screw thread; The device lower left side is the blower fan 11 of cold-hot wind system after leaning on, and blower fan is connected with the cold-hot wind air port on device top by airduct, to main work box, provides cold wind and hot blast; Right side is the water tank 12 of humidity control and feedback system after leaning on, and water tank changes into by aqueous water the moisture import 15 that moisture is transported to main work box rear portion by soft water pipeline and humidifier.
Main work box spatially also is divided into upper, middle, and lower part.One or more ultraviolet lamp tubes 19 are equipped with at main work box top, the ageing process of simulation sample material under the irradiation of ultraviolet light and provide main thermal source while testing for conventional simulation, and ultraviolet lamp tube 19 is connected with ultraviolet irradiation power indicator gauge 4; One exhaust outlet 13 is arranged after leaning at top, it is the import of main work box cold wind and hot blast, the cold-hot wind system is blown into main work box by exhaust outlet 13 by cold wind or hot blast, the cold-hot wind system coordinates ultraviolet lamp tube 19 to realize the accurate control of work box temperature, when carrying out constant temperature test, the cold-hot wind system continues to blow slowly the wind of steady temperature to work box, force casing each several part Air Flow and realize that the temperature of FCL is even, and can simulate the impact of wind speed factor on the sample corrosion by controlling exhaust air rate, the cold-hot wind system is connected with air quantity wind-warm syndrome indicator gauge 3; 13 both sides, air port are two exhaust fans 14, are the outlet of main work box air; Two pairs of temp probes 16 and moisture probe 17 are equipped with respectively in exhaust outlet 13 bottoms, the live apart both sides of main work box, it is the part of temperature feedback system and humidity feedback system, can realize real-time monitoring and feedback to spin manifold temperature, temp probe 16 is connected with temperature display watch 1, and moisture probe 17 is connected with humidity display table 2; The main work box both sides top two pairs of etchant gas air intake openings that have respectively placed in the middle, when simulation has the corrosion test of material under the etchant gas environment, for etchant gas provides air intake opening.Main work box middle part is specimen mounting 20, is square stainless (steel) wire structure, and during test, sample hangs on this, and specimen mounting 20 hangs on main work box middle part by main work box middle part two side-prominent specimen mounting support bars 32.Main work box bottom is constant temperature solution tank 21, constant temperature solution tank 21 bottoms are electric heaters 23, electric heater 23 tops arrange tank temp probe 22(the tank temp probe 22 here corresponding indicator gauge?), temp probe is connected with the temperature display watch 1 on device top.Constant temperature solution tank 21 is placed on the pallet 24 of lifting table, and pallet 24 bottoms are elevating mechanism, and elevating mechanism can make pallet 24 move up and down.Elevating mechanism is connected on lifting table slide block 26 with together lifting of slide block 26 by the push rod 29 of three one-tenth " product " word arrangement, slide block 26 centers have a through hole, evenly have four female through holes around central through hole, four of central through hole installation 33, four internal thread through hole of stroke limit bar and elevating mechanism have externally threaded leading screw 25 to be threaded connection the lifting that realizes slide block 26.
Compact conformation of the present invention is simple, low cost of manufacture, job stability is strong, versatility good, the test parameters precise control, not only can simulate the corrosion process of material members under the single conditions such as constant temperature and humidity, alternation of wetting and drying, ultraviolet irradiation, corrosion behavior and the process of all right simulation material member under the many factors synergy, be suitable for the multifactor synergy corrosion simulation laboratory test under atmospheric environment, be specially adapted to the corrosion lab simulation of material members under constant temperature and humidity and ultraviolet irradiation condition and alternation of wetting and drying and ultraviolet irradiation condition.
The accompanying drawing explanation
Fig. 1 is outside drawing of the present invention, the 1st, temperature display watch, the 2nd, humidity display table, the 3rd, air quantity wind-warm syndrome indicator gauge, the 4th, ultraviolet irradiation power indicator gauge, the 5th, cleaning door handle, the 6th, control panel, the 7th, sample soak time indicator gauge, the 8th, sample hang time indicator gauge, 9 is main work box view window, the 10th, device bottom, inner electric machine, the synchronous rotating module of four bars and elevating mechanism.
Fig. 2 is the device schematic top plan view, the 11st, and the blower fan of cold-hot wind system, the 12nd, the water tank of humidity control and feedback system, the 6th, the device control panel under closure state.
Fig. 3 is master's work box of the present invention, the inner structure schematic diagram of bottom lifting table and the synchronous rotating module of four bars, the 13rd, air port, be main work box cold wind and hot blast import, the 14th, exhaust fan, for getting rid of unnecessary and outmoded air in main work box, the 15th, the moisture import, 16, 17 is respectively the temperature and humidity probe, the 18th, the hook on specimen mounting, during test, sample just hangs on hook, the 20th, specimen mounting, the 32nd, the specimen mounting support bar on main work tank wall, the 19th, ultraviolet lamp tube, 19, 13 and 14 be used in conjunction with, can improve flowing of main work box internal gas, circulation and renewal, the 21st, tank, the 23rd, electric heater, the 22nd, tank temp probe, the 24th, the pallet of support tank, the 29th, push rod, the 26th, slide block, the pallet lower end has the push rod 29 of three one-tenth " product " word arrangement that it is withstood on slide block 26, the 33rd, the stroke limit bar, for limiting the maximum heave amplitude of slide block, the 25th, leading screw, the 27th, bearing, 28 is the synchronous rotating modules of four bars, the 30th, and motor.
Fig. 4 is the cut-open view of Fig. 3 along A-A, the 19th, and ultraviolet lamp tube, 31 for the moisture outlet, with the moisture import 15 of main work box top rear side, is used in conjunction with, for main work box provides constant humidity.
Fig. 5 is the cut-open view of Fig. 3 along B-B, is the space structure of specimen mounting and the outstanding stay of casing limit upper support specimen mounting.
Fig. 6 is the cut-open view of Fig. 3 along C-C, is the position of device elevating mechanism slide block up stroke gag lever post and four rhizoid bars symmetrically.
Embodiment
In conjunction with Fig. 1-Fig. 5, further illustrate the specific embodiment of the present invention now.
As depicted in figs. 1 and 2, the present invention is divided into upper, middle, and lower part in appearance with on inner space, but the division of three parts on outward appearance and inner space is also not exclusively in same position.The device top front face is the cleaning door that six parameter display devices are housed, and inside is equipped with the control of temperature and humidity system element of device, middle part is main work box, is the work chamber of whole device, and ultraviolet lamp tube is equipped with at its top, and top is by rear air port and two exhaust fans of being equipped with respectively, and moisture import and two temp probes and moisture probe are housed slightly downwards, main work box is exactly down specimen mounting again, hook is housed on specimen mounting, during test, sample just is suspended on the hook of specimen mounting, in whole process of the test, sample remains that position is motionless, the immersion solution of sample and shift out solution and realized by the lifting of main work box bottom tank, when tank is moved up by the elevating mechanism drive, sample just immerses in the solution of tank, when elevating mechanism moves down, the tank gravitate together moves down, sample is unsettled being exposed in air just, the lifting repeatedly of tank has just realized the alternation of wetting and drying of sample, bottom of gullet is equipped with electric heater, temp probe is housed on limit, being used in conjunction with of electric heater and temp probe, the temperature constant that keeps solution in tank, tank is by tray support, below pallet, there is the roof bar stay of three one-tenth " product " word arrangement, the push rod lower end is connected with the slide block of elevating mechanism, the slide block middle part has a through hole, the through hole surrounding has four female holes symmetrically, through hole is for installing the stroke limit bar, guarantee that the lifting of slide block is in concrete stroke range, four female holes and leading screw are threaded connection, the level of every rhizoid thick stick and vertical degree of freedom are respectively by two bearings restrictions, the axial force of screw mandrel is by the tapered roller bearing balance that is arranged on the leading screw bottom, when leading screw is driven by frequency modulation motor and rotates, lifting just occurs and drives pallet and together lifting of tank in slide block owing to being threaded.
Workflow of the present invention is: by the sample key words sorting, successively sample is suspended on specimen mounting, load onto appropriate soaking solution in tank, close the cleaning door on main work box and device top, switch on power, temperature and the main work box temperature of tank solution are set, humidity, wind speed, the ultraviolet lamp tube irradiation power, the sample soak time, the parameters such as sample hang time, start the start button on control panel, device starts preparation, the uviol lamp of chamber and the electric heater of tank bring into operation, after temperature and humidity all reaches the value of setting, device starts automatically to start executive routine by default sample soak time and sample hang time, when sample is carried out the soak time program, the rotation of the driven by motor leading screw of bottom, slide block slowly rises, and drives pallet and tank and together rises, and sample immerses in solution gradually, after the sample soak time completes, system is opened sample hang time program, now motor revolution, slide block is under the effect of tank, pallet and self gravitation, reversion with screw mandrel slowly descends, and sample is exposed in main work box air, when hang time finishes, complete once circulation, enter circulation next time.In like manner, other parameters that can also setting device realize that the corroding chamber internal mold of sample under the different many conditions of single conditioned disjunction fits Fast Evaluation.
Claims (3)
1. the device of indoor comprehensive simulation/Fast Evaluation atmospheric environment corrosion, it is characterized in that: this device is divided into upper, middle, and lower part, and device top comprises temperature display watch (1), humidity display table (2), air quantity wind-warm syndrome indicator gauge (3), ultraviolet irradiation power indicator gauge (4), sample soak time indicator gauge (7) and sample hang time indicator gauge (8); Device middle part is main work box and control panel (6), and control panel (6) is used for arranging the temperature of tank solution and main work box temperature, humidity, wind speed, ultraviolet lamp tube irradiation power, sample soak time, sample hang time; The device bottom is equipped with frequency modulation motor (30), frequency modulation motor (30) is synchronizeed rotating module (28) and is connected with four bars that are installed on the device bottom, frequency modulation motor (30) is that the synchronous rotating module of four bars (28) provides power, and the synchronous rotating module of four bars (28) is connected with the slide block (26) of main work box bottom elevating mechanism; The device bottom also comprises the blower fan (11) of cold-hot wind system, and blower fan (11) is connected with the exhaust outlet (13) on device top by airduct; The device bottom is provided with the water tank (12) of humidity control and feedback system, and water tank (12) changes into by aqueous water the moisture import (15) that moisture is transported to main work box rear portion by soft water pipeline and humidifier;
Main work box spatially is divided into upper, middle, and lower part, and one or more ultraviolet lamp tubes (19) are equipped with at main work box top, and ultraviolet lamp tube (19) is connected with ultraviolet irradiation power indicator gauge (4); One exhaust outlet (13) is arranged after leaning at main work box top, and the cold-hot wind system is blown into main work box by exhaust outlet (13) by cold wind or hot blast, and the cold-hot wind system is connected with air quantity wind-warm syndrome indicator gauge (3); Exhaust outlet (13) both sides are two exhaust fans (14); Two pairs of temp probes (16) and moisture probe (17) are equipped with respectively in exhaust outlet (13) bottom, the live apart both sides of main work box, it is the part of temperature feedback system and humidity feedback system, temp probe (16) is connected with temperature display watch (1), and moisture probe (17) is connected with humidity display table (2); The main work box both sides top two pairs of etchant gas air intake openings that have respectively placed in the middle; Main work box middle part is specimen mounting (20), and specimen mounting (20) hangs on main work box middle part by main work box middle part two side-prominent specimen mounting support bars (32); Main work box bottom is constant temperature solution tank (21), and constant temperature solution tank (21) bottom is electric heater (23), and electric heater (23) top arranges tank temp probe (22), and temp probe (22) is connected with the temperature display watch (1) on device top; Constant temperature solution tank (21) is placed on the pallet (24) of lifting table, and pallet (24) bottom is elevating mechanism, and elevating mechanism can make pallet (24) move up and down.
2. the device of indoor comprehensive simulation/Fast Evaluation atmospheric environment corrosion as claimed in claim 1, is characterized in that: be provided with an in particular cases emergency stop switch of equipment above described control panel (6).
3. the device that indoor comprehensive simulation/Fast Evaluation atmospheric environment as claimed in claim 1 is corroded, it is characterized in that: described elevating mechanism is connected to lifting table slide block (26) above with together lifting of slide block (26) by the push rod (29) of three one-tenth " product " word arrangement, slide block (26) center has a through hole, evenly have four female through holes around central through hole, central through hole is installed stroke limit bar (33), and four of four internal thread through hole and elevating mechanism have externally threaded leading screw (25) to be threaded connection the lifting that realizes slide block (26).
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| CN103558142A (en) * | 2013-10-22 | 2014-02-05 | 沈阳建筑大学 | Atmospheric corrosion simulator capable of adjusting temperature, humidity, ultraviolet light and pollution gas |
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| CN108535016A (en) * | 2018-06-26 | 2018-09-14 | 西南交通大学 | High-heat environment bullet train wheel shaft wear simulation case |
| CN108535016B (en) * | 2018-06-26 | 2019-04-23 | 西南交通大学 | High-heat environment bullet train wheel shaft wear simulation case |
| CN109253966A (en) * | 2018-10-16 | 2019-01-22 | 北京科技大学 | Simulate the test method of stainless steel corrosion process under industrial naval air environment |
| CN110068531A (en) * | 2019-05-30 | 2019-07-30 | 中国科学院金属研究所 | A kind of test method for simulating stainless steel corrosion process in the atmospheric environment of salt lake |
| CN110146437A (en) * | 2019-06-19 | 2019-08-20 | 重庆大学 | Monitoring device is simulated in power equipment metal erosion based on the coupling of polynary environmental factor |
| CN110146437B (en) * | 2019-06-19 | 2024-03-08 | 重庆大学 | Multi-element environment factor coupling-based metal corrosion simulation monitoring device for power equipment |
| CN110389009A (en) * | 2019-07-12 | 2019-10-29 | 国网浙江省电力有限公司电力科学研究院 | One kind being based on peak load regulation network substation isolating-switch mechanical oscillation experimental rig |
| CN110545370A (en) * | 2019-08-20 | 2019-12-06 | Oppo广东移动通信有限公司 | Electronic device and lens mode switching method |
| CN111398144A (en) * | 2020-03-31 | 2020-07-10 | 中国船舶重工集团公司第七二五研究所 | In-situ test detection device and method for simulating corrosion aging of multi-factor atmospheric environment material |
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