CN117871377A - Salt fog test box based on atomizer - Google Patents
Salt fog test box based on atomizer Download PDFInfo
- Publication number
- CN117871377A CN117871377A CN202311725240.3A CN202311725240A CN117871377A CN 117871377 A CN117871377 A CN 117871377A CN 202311725240 A CN202311725240 A CN 202311725240A CN 117871377 A CN117871377 A CN 117871377A
- Authority
- CN
- China
- Prior art keywords
- test
- cavity
- salt
- spray
- box body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 150000003839 salts Chemical class 0.000 title claims abstract description 183
- 239000007921 spray Substances 0.000 claims abstract description 198
- 238000005507 spraying Methods 0.000 claims abstract description 59
- 238000000034 method Methods 0.000 claims abstract description 29
- 238000009423 ventilation Methods 0.000 claims description 34
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 33
- 238000007789 sealing Methods 0.000 claims description 32
- 239000012267 brine Substances 0.000 claims description 24
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 claims description 24
- 238000006243 chemical reaction Methods 0.000 claims description 19
- 239000010410 layer Substances 0.000 claims description 14
- 238000000889 atomisation Methods 0.000 claims description 13
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 12
- 239000011780 sodium chloride Substances 0.000 claims description 12
- 239000000523 sample Substances 0.000 claims description 11
- 230000007797 corrosion Effects 0.000 claims description 10
- 238000005260 corrosion Methods 0.000 claims description 10
- 239000011241 protective layer Substances 0.000 claims description 10
- 238000003756 stirring Methods 0.000 claims description 8
- 239000003595 mist Substances 0.000 claims description 7
- 238000004321 preservation Methods 0.000 claims description 7
- 238000001514 detection method Methods 0.000 claims description 5
- 238000004891 communication Methods 0.000 claims description 4
- 238000009413 insulation Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 230000001737 promoting effect Effects 0.000 claims description 3
- LJRGBERXYNQPJI-UHFFFAOYSA-M sodium;3-nitrobenzenesulfonate Chemical compound [Na+].[O-][N+](=O)C1=CC=CC(S([O-])(=O)=O)=C1 LJRGBERXYNQPJI-UHFFFAOYSA-M 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 2
- 230000005389 magnetism Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000007769 metal material Substances 0.000 description 3
- 239000012266 salt solution Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
The invention relates to the technical field of salt spray tests and discloses a salt spray test box based on a spraying device, wherein in the initial stage of the salt spray test, a plurality of test pieces temporarily fixed around a test piece support move through the movement of a movable spray head along a spray track, and salt spray is uniformly sprayed upwards through the movable spray head, so that the salt spray can be rapidly distributed in the whole test cavity through the movement of the movable spray head in the initial stage, and therefore, the salt spray can be effectively sprayed on each test piece in the initial stage of the test, and the contact uniformity of each test piece and the salt spray is ensured; the movable spray head stops moving after moving along the spray track for a circle, and still sprays salt fog, so that the salt fog concentration in the test cavity is maintained in the salt fog test process, the gas circulation in the test cavity is promoted in the salt fog test process, the uniformity of salt fog in the test cavity is ensured, and the salt fog test effect is improved.
Description
Technical Field
The invention relates to the technical field of salt spray tests, in particular to a salt spray test box based on a spraying device.
Background
The salt spray test is an environment test for checking the corrosion resistance of products or metal materials by mainly using the artificial simulated salt spray environment conditions created by salt spray test equipment. The method is divided into two main types, one is a natural environment exposure test, and the other is a manual acceleration simulated salt spray environment test. The artificial salt spray environment simulation test utilizes a salt spray test box which is a test device with a certain volume space, and the salt spray environment is caused by an artificial method in the volume space to check the salt spray corrosion resistance quality of the product. Compared with the natural environment, the salt concentration of the chloride in the salt spray environment in the salt spray test box can be several times or tens times of the salt spray content in the common natural environment, so that the corrosion speed is greatly improved, and the time for obtaining the result is also greatly shortened when the salt spray test is carried out on the product. If a product sample is tested in a natural exposure environment, the corrosion of the product sample can take 1 year, and if the product sample is tested in an artificial simulated salt spray environment, similar results can be obtained only by 24 hours, and the duration of the salt spray test is greatly shortened.
The salt spray test aims at evaluating the salt spray corrosion resistance quality of the product or the metal material, and the judgment of the salt spray test result is precisely the judgment of the product quality, and whether the judgment result is correct or not is a key for correctly measuring the salt spray corrosion resistance quality of the product or the metal.
The existing salt spray test box needs to disperse salt spray to the internal test cavity of the whole salt spray test box through air flow and the like at the initial stage of a test, but in the process, a test piece close to a spray head or a local position of the test piece corrodes more deeply than a test piece far from the spray head or a local position of the test piece, so that a test result is not accurate enough, and meanwhile, in the test process of a protective layer of an iron product in the existing salt spray test box, a similar fixing mode with the test piece made of other materials is adopted, so that the fixing is complicated, and the angle and the azimuth of the test piece are difficult to adjust.
For the problems in the related art, no effective solution has been proposed at present.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a salt spray test box based on a spraying device.
In order to solve the technical problems, the invention provides the following technical scheme:
the salt spray test box comprises a test box body, a sealing cover and a control terminal, wherein the control terminal is arranged on one side of the test box body, a test cavity is formed in the test box body, after the sealing cover is closed with the test box body, the test cavity can be isolated from the outside and sealed, a salt water cavity is formed in one side, far away from the control terminal, of the test box body, a spray track is arranged on the inner wall of the test box body and positioned in the test cavity, and a movable spray head is limited in the spray track; a test piece support is arranged in the test cavity and used for temporarily fixing each test piece; the test box body is internally provided with an air compressor, the air compressor is used for providing air flow for the movable spray head, the movable spray head can draw saline from the saline cavity through the air flow provided by the air compressor, and in the process that the movable spray head moves along the spraying track, the saline and the air flow are combined to spray salt mist from the movable spray head to each test piece; the test chamber body is internally provided with a ventilation mechanism, the ventilation mechanism can promote gas circulation in the test chamber in the salt spray test process, and the ventilation mechanism can also discharge salt spray in the test chamber after the salt spray test is finished.
Preferably, the test box body sequentially comprises a structural layer, a heat preservation layer and a protective layer from outside to inside, wherein the protective layer is made of a nonmetallic material and can resist salt spray corrosion; the test chamber body is inside the heat preservation and is located the outside of test cavity is provided with the heater, the heater is used for providing heat with the inside temperature of test cavity keeps invariable.
Preferably, a heater is also arranged inside the heat insulation layer of the test box and outside the brine cavity, and is used for providing heat to keep the air temperature inside the brine cavity and the brine temperature inside the brine cavity constant; in the salt spray test process, the temperature of the salt water in the salt water cavity is consistent with the temperature in the test cavity.
Preferably, the bottom end of the salt water cavity is provided with a stirring blade, and the stirring blade keeps a running state in the salt water cavity in the salt spray test process, so that the salt water concentration in the salt water cavity is kept constant; the inside conductivity tester that still is provided with of test box, conductivity tester's detection probe sets up the salt solution chamber bottom, detection probe is used for cooperating conductivity tester real-time supervision the inside salt solution concentration of salt solution chamber.
Preferably, the test piece support comprises a plurality of fixing points, the fixing points are uniformly distributed on the surface of the test piece support, a fixing rod is arranged at each fixing point, and a spherical connecting piece is arranged at the top end of each fixing rod; the spherical connecting piece comprises a fixed ball and a connecting ball shell, a fixed plate is arranged on one side, far away from the fixed ball, of the connecting ball shell, a permanent magnet is arranged in the fixed plate, and the connecting ball shell is in interference fit with the outer part of the fixed ball; permanent magnet that the fixed plate inside set up can be through magnetic attraction and interim fixed test piece, and can be through the adjustment connect the spherical shell with the mutual position of fixed ball, can adjust the direction of the test piece that the fixed plate is interim fixed.
Preferably, an atomization area is arranged on one side of the test cavity, which is close to the ventilation mechanism, and the atomization track comprises a uniform spraying section and a stay section; the uniform spraying section is arranged at the bottom end inside the test cavity and is positioned below the test piece bracket; the stay section is arranged at the bottom end of the atomization area of the test cavity; the uniform spraying section and the stay section are sequentially connected end to form a circulation path.
Preferably, the paths of the uniform spraying sections respectively wind each fixed point for one circle, the movable spray heads comprise a driving chassis and an atomizing spray head, the driving chassis is limited in the spraying track, and the driving chassis can drive the atomizing spray head to move along the spraying track; the atomizing nozzle is fixedly connected with the driving chassis through a connecting seat, the connecting seat comprises a conversion head and a limiting seat, the conversion head is rotationally connected with the limiting seat, the conversion head can freely rotate under the limiting of the limiting seat, and the conversion head freely rotates, and meanwhile, the fixed end of the conversion head is always communicated with the atomizing nozzle.
Preferably, a coiler is further arranged at one side of the atomization area, a connecting pipeline is coiled in the coiler, one end of the connecting pipeline is respectively communicated with the saline water cavity and the air compressor, and the other end of the connecting pipeline is communicated with the free end of the conversion head; the coil pipe machine can release and roll the connecting pipeline according to the distance between the movable spray head and the coil pipe machine, and the communication between the connecting pipeline and the atomizing spray head is kept.
Preferably, the ventilation mechanism comprises a ventilation fan and a circulating fan, the ventilation fan is embedded on the surface of the test box, a movable baffle is arranged on one side of the ventilation fan, which is close to the test cavity, and the movable baffle can seal a ventilation path between the test cavity and the outside through the ventilation fan when moving to a sealing position; the circulating fan is hung inside the test cavity and is used for promoting air flow circulation inside the test cavity.
Preferably, the test box body is rotationally connected with the sealing cover, a sealing rubber ring is arranged on the edge of one surface of the sealing cover, which is close to the test box body, and when the sealing cover is closed with the test box body, the sealing rubber ring can deform to fill gaps between the sealing cover and the test box body; and an observation window is also arranged in the center of the sealing cover.
Compared with the prior art, the invention provides a salt spray test box based on a spraying device, which has the following beneficial effects:
1. according to the salt spray test box based on the spraying device, after salt spray test is started, the movable spray head moves at a uniform speed along the spraying track from the initial position, in the process that the movable spray head moves along the spraying track, the air compressor is used for providing air flow for the movable spray head, the air flow provided by the air compressor moves the spray head to draw salt water from the interior of the salt water cavity, salt water and air flow are combined to spray salt spray to each test piece from the movable spray head, so that in the initial stage of salt spray test, the movable spray head moves along the spraying track, a plurality of test pieces temporarily fixed around the test piece support move, salt spray is uniformly sprayed upwards through the movable spray head, salt spray can be quickly distributed in the whole test cavity through the movement of the movable spray head in the initial stage, and salt spray can be effectively sprayed to each test piece at the initial stage of test, and the contact uniformity of each test piece and the salt spray is ensured; the movable spray head stops moving after moving along the spray track for a circle, and still sprays salt fog, so that the salt fog concentration in the test cavity is maintained in the salt fog test process, the gas circulation in the test cavity is promoted in the salt fog test process, the uniformity of salt fog in the test cavity is ensured, and the salt fog test effect is improved.
2. This kind of salt fog test box based on atomizer, through evenly distributed at each fixed point position on test piece support surface, the setting of the spherical connecting piece on each dead lever top, the permanent magnet of the inside setting of fixed plate can pass through magnetic adsorption and interim fixed test piece, and can adjust the direction of the interim fixed test piece of fixed plate through the mutual position of adjustment connection spherical shell and fixed ball, in order to be able to personally submit the angle of setting for with the biggest surface and the vertical of test piece according to the actual shape of each test piece, in order to fully guarantee salt fog test and satisfy the requirement of standard, guarantee salt fog test's accuracy.
3. The salt spray test box based on the spraying device is characterized in that the uniform spraying section is arranged at the bottom end inside the test cavity and is positioned below the test piece bracket; the stay section sets up the bottom in the atomizing area of test cavity for at the initial stage that salt fog test begins, remove the shower nozzle along evenly spraying the section, move around the spherical connecting piece of each dead lever top of evenly distributed in each fixed point position on test piece support surface temporarily fixed a plurality of test piece, through removing the shower nozzle along the removal of spraying track, it evenly upwards sprays salt fog through removing the shower nozzle to fix temporarily around test piece support, make can be in the initial stage salt fog can be through removing the removal of shower nozzle and evenly distributed at whole test cavity, and can evenly spray respectively on a plurality of test piece surface, thereby can spray salt fog to each test piece at experimental initial stage effectively, guarantee that each test piece contacts evenly with salt fog, guarantee the validity of salt fog test.
Drawings
FIG. 1 is a schematic perspective view of a salt spray test chamber based on a spraying device;
FIG. 2 is a schematic diagram showing a salt spray test chamber based on a spraying device;
FIG. 3 is a schematic diagram showing the internal structure of a salt spray test chamber based on a spraying device;
FIG. 4 is an enlarged schematic view of portion A of FIG. 3 in accordance with the present invention;
FIG. 5 is a schematic diagram showing a second internal structure of a salt spray test chamber based on a spraying device according to the present invention;
FIG. 6 is a schematic view of the internal structure of the test cavity of the present invention;
FIG. 7 is a schematic cross-sectional view of a fixation rod and ball joint of the present invention;
fig. 8 is a schematic perspective view of a mobile spray head according to the present invention.
In the figure: 1. a test box; 11. a structural layer; 12. a heat preservation layer; 13. a protective layer; 2. a cover; 21. sealing rubber rings; 22. an observation window; 3. a control terminal; 4. a test cavity; 41. a test piece bracket; 42. a fixed point; 43. a fixed rod; 44. a spherical connector; 441. a fixed ball; 442. connecting the spherical shell; 443. a fixing plate; 45. an atomization region; 46. a coiling machine; 47. a connecting pipe; 5. a brine cavity; 51. stirring blades; 52. a detection probe; 6. a spray rail; 61. a uniform spraying section; 62. a stay section; 7. moving the spray head; 71. a drive chassis; 72. an atomizing nozzle; 73. a connecting seat; 731. a conversion head; 732. a limit seat; 8. a ventilation mechanism; 81. a ventilator; 82. a circulation fan; 83. a movable baffle.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As described in the background art, the prior art has the defects, and in order to solve the technical problems, the application provides a salt spray test box based on a spraying device.
Referring to fig. 1-8, a salt spray test box based on a spraying device comprises a test box body 1, a sealing cover 2 and a control terminal 3, wherein the control terminal 3 is arranged on one side of the test box body 1, a test cavity 4 is formed in the test box body 1, after the sealing cover 2 is closed with the test box body 1, the test cavity 4 can be isolated and sealed from the outside, a salt water cavity 5 is formed in one side, away from the control terminal 3, of the test box body 1, a spraying track 6 is arranged on the inner wall of the test box body 1 and positioned in the test cavity 4, and a movable spray head 7 is limited in the spraying track 6; a test piece support 41 is arranged in the test cavity 4, and the test piece support 41 is used for temporarily fixing each test piece; the inside of the test box body 1 is also provided with an air compressor, the air compressor is used for providing air flow for the movable spray head 7, the movable spray head 7 provided by the air compressor can draw saline from the inside of the saline cavity 5, and in the process that the movable spray head 7 moves along the spraying track 6, the saline and the air flow are combined to spray salt mist from the movable spray head 7 to each test piece; the inside breather mechanism 8 that still is provided with of test box 1, breather mechanism 8 can promote the inside gas circulation of test cavity 4 in the salt spray test in-process, and breather mechanism 8 can also be after the salt spray test is ended, with the inside salt spray of test cavity 4 discharge.
When the device is used, each test piece is temporarily fixed on a test piece support 41, then a seal cover 2 is closed with a test box body 1, a test cavity 4 is isolated and sealed from the outside, then a control terminal 3 is used for controlling and starting a smoke test (the control mode of the control terminal 3 is a common technical scheme in the prior art and is not repeated here), after the salt spray test is started, a movable spray head 7 moves at a uniform speed along a spraying track 6 from an initial position for one circle, in the process that the movable spray head 7 moves along the spraying track 6, an air compressor is used for providing air flow for the movable spray head 7, the air flow provided by the air compressor moves the spray head 7, salt water can be drawn from the inside of a salt cavity 5, salt water and the air flow are combined to spray salt spray from the movable spray head 7 to each test piece (wherein the air compressor generates air flow at a port of the salt cavity 5 to press the salt water into the air flow and generate salt mist in the high-speed air flow), so that in the initial stage of the salt spray test is started, the movable spray head 7 moves along the spraying track 6 at a uniform speed, a plurality of test pieces temporarily fixed around the test piece support 41, the movable spray head 7 can uniformly move up to enable the salt spray mist to uniformly in the initial stage of the salt spray to be capable of uniformly and uniformly spread the salt mist to each test piece in the initial stage, and can be capable of uniformly sprayed to quickly move with each test piece in the initial stage of the test piece can be sprayed with the salt mist in the test can be sprayed at the initial stage and can be contacted with each test stage with the test piece is capable with the salt spray 4 at the test stage; after the movable spray head 7 moves along the spraying track 6 for one circle, the movable spray head 7 stops moving, and salt fog is still sprayed out after the movable spray head 7 stops moving, so that the salt fog concentration in the test cavity 4 is maintained in the salt fog test process, the gas circulation in the test cavity 4 is promoted in the salt fog test process, the uniformity of the salt fog in the test cavity 4 is ensured, and the salt fog test effect is improved; after the salt spray test is finished, the mobile spray head 7 stops spraying salt spray, and the ventilation mechanism 8 discharges the salt spray in the test cavity 4 so as to continue the circulating salt spray corrosion and drying test according to the salt spray test standard (the specific content of the test is referred to national standard GB/T28416-2012).
Further, referring to fig. 1 and fig. 3-5, the test box 1 sequentially includes, from outside to inside, a structural layer 11, a thermal insulation layer 12, and a protective layer 13, where the protective layer 13 is made of a non-metal material, and the protective layer 13 is able to resist salt spray corrosion; a heater is arranged inside the insulating layer 12 of the test chamber body 1 and outside the test cavity 4, and the heater is used for providing heat to keep the temperature inside the test cavity 4 constant.
A heater is also arranged inside the heat preservation layer 12 of the test box body 1 and outside the brine cavity 5, and the heater is used for providing heat to keep the air temperature inside the brine cavity 5 and the brine temperature inside the brine cavity 5 constant; during the salt spray test, the temperature of the brine inside the brine chamber 5 was consistent with the temperature inside the test chamber 4.
Therefore, in use, the temperature of the brine in the brine cavity 5 is kept consistent with the temperature in the test cavity 4 through the heater arranged in the heat preservation layer 12, so that the temperature in the whole test cavity 4 is constant in the salt spray test and drying test process, the salt spray is prevented from being dispersed and continuously liquefied in the test cavity 4, the temperature in the test cavity 4 is disturbed, and the test piece in the test cavity 4 is prevented from being disturbed.
Further, referring to fig. 5, a stirring blade 51 is disposed at the bottom end of the brine chamber 5, and the stirring blade 51 maintains a running state during the salt spray test, so as to maintain the constant concentration of the brine in the brine chamber 5; the inside conductivity tester that still is provided with of test box 1, conductivity tester's test probe 52 sets up in salt water cavity 5 bottom, conductivity tester's test probe 52 is used for cooperating the inside salt water concentration of salt water cavity 5 real-time supervision salt water to in the use, keep operating condition through stirring vane 51, maintain the inside salt water concentration of salt water cavity 5 invariable, guarantee to follow the salt composition stability of moving shower nozzle 7 spun salt fog, and can pass through the inside salt water concentration of conductivity tester's test probe 52 real-time supervision salt water cavity 5, in order to be able to judge whether to accord with actual salt fog concentration demand from moving shower nozzle 7 spun salt fog concentration, thereby can remind personnel to adjust the inside salt water concentration of salt water cavity 5, in order to fully guarantee the accuracy of salt fog test.
Further, referring to fig. 1-3 and 6-8, the test piece support 41 includes a plurality of fixing points 42, the fixing points 42 are uniformly distributed on the surface of the test piece support 41, each fixing point 42 is provided with a fixing rod 43, and a spherical connecting piece 44 is arranged at the top end of the fixing rod 43; the spherical connecting piece 44 comprises a fixed ball 441 and a connecting ball shell 442, a fixed plate 443 is arranged on one side of the connecting ball shell 442 away from the fixed ball 441, a permanent magnet is arranged in the fixed plate 443, and the connecting ball shell 442 is in interference fit with the outer part of the fixed ball 441; the permanent magnet provided inside the fixing plate 443 can temporarily fix the test piece by magnetic attraction, and can adjust the direction of the test piece temporarily fixed by the fixing plate 443 by adjusting the mutual position of the connection ball case 442 and the fixing ball 441.
When the test piece fixing device is used, through the arrangement of the spherical connecting pieces 44 uniformly distributed at the positions of the fixing points 42 on the surface of the test piece support 41, the test pieces can be temporarily fixed through magnetic adsorption by the permanent magnets arranged inside the fixing plate 443, and the directions of the test pieces temporarily fixed by the fixing plate 443 can be adjusted by adjusting the mutual positions of the connecting spherical shell 442 and the fixing balls 441, so that the maximum surface and the vertical surface of the test piece can be set at a certain angle (in the salt spray test process, the normal angle is 15-30 degrees) according to the actual shape of each test piece, the salt spray test can be fully ensured to meet the standard requirements, and the accuracy of the salt spray test is ensured.
Further, referring to fig. 1-3 and 6-8, an atomization area 45 is arranged on one side of the test cavity 4 close to the ventilation mechanism 8, and the atomization track 6 comprises a uniform spraying section 61 and a stay section 62; the uniform spraying section 61 is arranged at the bottom end inside the test cavity 4 and below the test piece bracket 41; the stay section 62 is arranged at the bottom end of the atomizing area 45 of the test cavity 4; the uniform spraying section 61 and the stay section 62 are connected end to end in sequence to form a circulation path.
The paths of the uniform spraying sections 61 respectively wind each fixed point 42 for one circle, the movable spray heads 7 comprise a driving chassis 71 and an atomizing spray head 72, the driving chassis 71 is limited in the spraying track 6, and the driving chassis 71 can drive the atomizing spray head 72 to move along the spraying track 6; the atomizing nozzle 72 is fixedly connected with the driving chassis 71 through the connecting seat 73, the connecting seat 73 comprises a conversion head 731 and a limiting seat 732, the conversion head 731 is rotationally connected with the limiting seat 732, the conversion head 731 can freely rotate under the limiting of the limiting seat 732, and the fixed end of the conversion head 731 is always communicated with the atomizing nozzle 72 while the conversion head 731 freely rotates.
A coiler 46 is further arranged on one side of the atomization area 45, a connecting pipeline 47 is coiled in the coiler 46, one end of the connecting pipeline 47 is respectively communicated with the saline water cavity 5 and the air compressor, and the other end of the connecting pipeline 47 is communicated with the free end of the conversion head 731; the coiler 46 is capable of releasing and winding up the connecting conduit 47, maintaining communication between the connecting conduit 47 and the atomizer 72, depending on the distance of the moving nozzle 7 from the coiler 46.
Therefore, in the use process, after the salt spray test is started, the movable spray head 7 moves along a circulating path formed by sequentially connecting the uniform spraying section 61 and the stay section 62 end to end of the spraying track 6, and returns to the stay section 62 from the stay section 62 through the uniform spraying section 61, wherein the uniform spraying section 61 is arranged at the bottom end inside the test cavity 4 and is positioned below the test piece bracket 41; the stay section 62 is arranged at the bottom end of the atomization area 45 of the test cavity 4, so that in the initial stage of salt spray test, the movable spray head 7 moves along the uniform spray section 61 around a plurality of test pieces which are temporarily fixed by the spherical connecting pieces 44 at the top ends of the fixing rods 43 uniformly distributed at the positions of the fixing points 42 on the surface of the test piece support 41, the salt spray is uniformly sprayed upwards around the test piece support 41 by the movable spray head 7 through the movement of the movable spray head 7, so that the salt spray can be rapidly distributed on the whole test cavity 4 through the movement of the movable spray head 7 in the initial stage and can be uniformly sprayed on the surfaces of the plurality of test pieces respectively, thereby effectively spraying the salt spray to each test piece in the initial stage of the test, ensuring that each test piece is uniformly contacted with the salt spray, ensuring the effectiveness of the salt spray test, and then stopping the movement of the movable spray head 7 after the movable spray head 7 returns to the stay section 62 again, and after the movement of the movable spray head 7 is stopped, the salt spray is still performed, so that the salt spray concentration inside the test cavity 4 is maintained in the salt spray test process, the salt spray is promoted, the salt spray effect inside the test cavity 4 is improved in the process of the salt spray test, and the uniformity of the salt spray test cavity is ensured;
wherein the movement of the movable nozzle 7 is that the driving chassis 71 drives the whole movable nozzle 7 to move along the uniform spraying section 61 and the stay section 62 of the spraying track 6, and can carry out the moving step in the salt spray test process according to the control of the control terminal 3, then when in use, one end of the connecting pipeline 47 is respectively communicated with the salt water cavity 5 and the air compressor, the other end of the connecting pipeline 47 is communicated with the free end of the switching head 731, the pipe machine 46 can release and wind the connecting pipeline 47 according to the distance of the movable nozzle 7 from the pipe machine 46, the communication between the connecting pipeline 47 and the atomizing nozzle 72 is kept, the switching head 731 is rotationally connected with the limiting seat 732, the switching head 731 can freely rotate under the limiting of the limiting seat 732, and the fixed end of the switching head 731 is always communicated with the atomizing nozzle 72 while the switching head 731 freely rotates, so that salt spray can be provided to the atomizing nozzle 72 of the movable nozzle 7 through the connecting pipeline 47 when the movable nozzle 7 moves to various positions under the limiting of the uniform spraying section 61 and the stay section 62.
Further, referring to fig. 1-3, the ventilation mechanism 8 includes a ventilation fan 81 and a circulation fan 82, the ventilation fan 81 is embedded on the surface of the test chamber 1, a movable baffle 83 is disposed on one side of the ventilation fan 81 near the test cavity 4, and when the movable baffle 83 moves to the closed position, a ventilation path between the test cavity 4 passing through the ventilation fan 81 and the outside can be closed; the circulation fan 82 is hoisted inside the test cavity 4, the circulation fan 82 is used for promoting the air current circulation inside the test cavity 4, so that when in use, in the salt spray test process, the circulation fan 82 rotates to promote the air circulation inside the test cavity 4, and the movable baffle 83 moves to the closed position (the topmost end) to seal the ventilation path between the test cavity 4 and the outside through the ventilation fan 81, the sealing between the test cavity 4 and the outside is ensured, after the salt spray test is finished, the movable baffle 83 moves to the open position (the bottommost end) to open the ventilation path between the test cavity 4 and the outside through the ventilation fan 81, and the ventilation fan 81 starts to discharge salt spray inside the test cavity 4.
Further, referring to fig. 1-3, the test box 1 is rotatably connected with the sealing cover 2, a sealing rubber ring 21 is arranged at the edge of one surface of the sealing cover 2, which is close to the test box 1, and when the sealing cover 2 is closed with the test box 1, the sealing rubber ring 21 can deform to fill a gap between the sealing cover 2 and the test box 1; the center of the sealing cover 2 is also provided with an observation window 22, so that gaps between the sealing cover 2 and the test box body 1 are filled through deformation of the sealing rubber ring 21, isolation and sealing between the test cavity 4 and the outside after the sealing cover 2 and the test box body 1 are closed are ensured, and a salt spray test process can be observed through the observation window 22 in real time.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. Salt fog test box based on atomizer, including test box body (1), closing cap (2) and control terminal (3), control terminal (3) set up one side of test box body (1), test cavity (4) have been seted up to test box body (1) inside, closing cap (2) with after closing between test box body (1), can with keep apart and seal between test cavity (4) and the external world, its characterized in that:
a brine cavity (5) is formed in one side, far away from the control terminal (3), of the test box body (1), a spraying track (6) is formed in the inner wall of the test box body (1) and located in the test cavity (4), and a movable spray head (7) is limited in the spraying track (6);
a test piece support (41) is arranged in the test cavity (4), and the test piece support (41) is used for temporarily fixing each test piece;
the inside of the test box body (1) is also provided with an air compressor, the air compressor is used for providing air flow for the movable spray head (7), the movable spray head (7) can draw saline from the inside of the saline cavity (5) through the air flow provided by the air compressor, and in the process that the movable spray head (7) moves along the spraying track (6), the saline and the air flow are combined to spray salt mist from the movable spray head (7) to each test piece;
the test chamber body (1) is internally provided with a ventilation mechanism (8), the ventilation mechanism (8) can promote gas circulation inside the test chamber (4) in the salt spray test process, and the ventilation mechanism (8) can also discharge salt spray inside the test chamber (4) after the salt spray test is finished.
2. A salt spray test chamber based on a spray device according to claim 1, wherein: the test box body (1) sequentially comprises a structural layer (11), a heat preservation layer (12) and a protective layer (13) from outside to inside, wherein the protective layer (13) is made of a nonmetallic material, and the protective layer (13) can resist salt spray corrosion;
the heat insulation layer (12) of the test box body (1) is internally provided with a heater which is positioned outside the test cavity (4) and is used for providing heat to keep the internal temperature of the test cavity (4) constant.
3. A salt spray test chamber based on a spray device according to claim 2, characterized in that: a heater is also arranged inside the heat preservation layer (12) of the test box body (1) and outside the brine cavity (5), and is used for providing heat to keep the air temperature inside the brine cavity (5) and the brine temperature inside the brine cavity (5) constant;
during the salt spray test, the temperature of the salt water in the salt water cavity (5) is consistent with the temperature in the test cavity (4).
4. A salt spray test chamber based on a spray device according to claim 1, wherein: the bottom end of the salt water cavity (5) is provided with a stirring blade (51), and in the salt spray test process, the stirring blade (51) keeps a running state and maintains the concentration of salt water in the salt water cavity (5) to be constant;
the test box body (1) is internally provided with a conductivity tester, a detection probe (52) of the conductivity tester is arranged at the bottom end of the brine cavity (5), and the detection probe (52) is used for being matched with the conductivity tester to monitor the brine concentration in the brine cavity (5) in real time.
5. A salt spray test chamber based on a spray device according to claim 1, wherein: the test piece support (41) comprises a plurality of fixing points (42), the fixing points (42) are uniformly distributed on the surface of the test piece support (41), a fixing rod (43) is arranged at each fixing point (42), and a spherical connecting piece (44) is arranged at the top end of each fixing rod (43);
the spherical connecting piece (44) comprises a fixed ball (441) and a connecting ball shell (442), a fixed plate (443) is arranged on one side, far away from the fixed ball (441), of the connecting ball shell (442), a permanent magnet is arranged in the fixed plate (443), and the connecting ball shell (442) is in interference fit with the outer part of the fixed ball (441);
the permanent magnet arranged inside the fixing plate (443) can absorb magnetism and temporarily fix the test piece, and the direction of the test piece temporarily fixed by the fixing plate (443) can be adjusted by adjusting the mutual positions of the connecting spherical shell (442) and the fixing ball (441).
6. The salt spray test chamber based on a spraying device according to claim 5, wherein: an atomization area (45) is arranged on one side of the test cavity (4) close to the ventilation mechanism (8), and the atomization track (6) comprises a uniform spraying section (61) and a stay section (62);
the uniform spraying section (61) is arranged at the bottom end inside the test cavity (4) and is positioned below the test piece bracket (41); the stay section (62) is arranged at the bottom end of the atomization area (45) of the test cavity (4); the uniform spraying section (61) and the stay section (62) are connected end to end in sequence to form a circulation path.
7. The salt spray test chamber based on a spraying device according to claim 6, wherein: the paths of the uniform spraying sections (61) respectively wind each fixed point (42) for one circle, the movable spray heads (7) comprise a driving chassis (71) and an atomizing spray head (72), the driving chassis (71) is limited inside the spraying track (6), and the driving chassis (71) can drive the atomizing spray head (72) to move along the spraying track (6);
the atomizing nozzle (72) is fixedly connected with the driving chassis (71) through a connecting seat (73), the connecting seat (73) comprises a conversion head (731) and a limiting seat (732), the conversion head (731) is rotationally connected with the limiting seat (732), the conversion head (731) can freely rotate under the limiting of the limiting seat (732), and the conversion head (731) freely rotates, and meanwhile, the fixed end of the conversion head (731) is always communicated with the atomizing nozzle (72).
8. A salt spray test chamber based on a spray device as claimed in claim 7, wherein: a coiler (46) is further arranged on one side of the atomization area (45), a connecting pipeline (47) is coiled in the coiler (46), one end of the connecting pipeline (47) is respectively communicated with the saline water cavity (5) and the air compressor, and the other end of the connecting pipeline (47) is communicated with the free end of the conversion head (731);
the coiler (46) is capable of releasing and winding up the connecting duct (47) according to the distance of the mobile nozzle (7) from the coiler (46), maintaining communication between the connecting duct (47) and the atomising nozzle (72).
9. A salt spray test chamber based on a spray device according to claim 1, wherein: the ventilation mechanism (8) comprises a ventilation fan (81) and a circulating fan (82), the ventilation fan (81) is embedded on the surface of the test box body (1), a movable baffle (83) is arranged on one side, close to the test cavity (4), of the ventilation fan (81), and when the movable baffle (83) moves to a closed position, a ventilation path between the test cavity (4) passing through the ventilation fan (81) and the outside can be closed;
the circulating fan (82) is hoisted inside the test cavity (4), and the circulating fan (82) is used for promoting air flow circulation inside the test cavity (4).
10. A salt spray test chamber based on a spray device according to claim 1, wherein: the test box body (1) is rotationally connected with the sealing cover (2), a sealing rubber ring (21) is arranged on one surface edge of the sealing cover (2) close to the test box body (1), and when the sealing cover (2) is closed with the test box body (1), the sealing rubber ring (21) can deform to fill gaps between the sealing cover (2) and the test box body (1);
the center of the sealing cover (2) is also provided with an observation window (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311725240.3A CN117871377B (en) | 2023-12-15 | 2023-12-15 | Salt fog test box based on atomizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311725240.3A CN117871377B (en) | 2023-12-15 | 2023-12-15 | Salt fog test box based on atomizer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117871377A true CN117871377A (en) | 2024-04-12 |
| CN117871377B CN117871377B (en) | 2024-05-31 |
Family
ID=90590915
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311725240.3A Active CN117871377B (en) | 2023-12-15 | 2023-12-15 | Salt fog test box based on atomizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117871377B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102854126A (en) * | 2012-09-06 | 2013-01-02 | 浙江吉利汽车研究院有限公司杭州分公司 | Determination method for vehicle part service time |
| CN109211769A (en) * | 2018-11-08 | 2019-01-15 | 上海怡骋工贸有限公司 | A kind of compound salt spray test chamber of programmable high/low temperature |
| CN109884254A (en) * | 2019-03-20 | 2019-06-14 | 泰宏建设发展有限公司 | For detecting the simulation laboratory and application method of the pernicious gas amount of precipitation of plate and furniture |
| CN111982792A (en) * | 2020-07-03 | 2020-11-24 | 江苏富奇恒温设备有限公司 | Long service life's dry damp and hot salt fog corrosion test case |
| CN218584614U (en) * | 2022-10-13 | 2023-03-07 | 首顾(天津)表面处理科技有限公司 | Salt mist testing machine capable of achieving uniform spraying |
-
2023
- 2023-12-15 CN CN202311725240.3A patent/CN117871377B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102854126A (en) * | 2012-09-06 | 2013-01-02 | 浙江吉利汽车研究院有限公司杭州分公司 | Determination method for vehicle part service time |
| CN109211769A (en) * | 2018-11-08 | 2019-01-15 | 上海怡骋工贸有限公司 | A kind of compound salt spray test chamber of programmable high/low temperature |
| CN109884254A (en) * | 2019-03-20 | 2019-06-14 | 泰宏建设发展有限公司 | For detecting the simulation laboratory and application method of the pernicious gas amount of precipitation of plate and furniture |
| CN111982792A (en) * | 2020-07-03 | 2020-11-24 | 江苏富奇恒温设备有限公司 | Long service life's dry damp and hot salt fog corrosion test case |
| CN218584614U (en) * | 2022-10-13 | 2023-03-07 | 首顾(天津)表面处理科技有限公司 | Salt mist testing machine capable of achieving uniform spraying |
Also Published As
| Publication number | Publication date |
|---|---|
| CN117871377B (en) | 2024-05-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109490352A (en) | Multifactor low temperature sleet freezing environment simulated testing system | |
| CN107200147A (en) | Jelly cloud icing temperature control simulation laboratory suitable for middle-size and small-size aircraft | |
| CN117871377B (en) | Salt fog test box based on atomizer | |
| CN206945501U (en) | A kind of multifunction manual ageing test apparatus for coating | |
| CN103399033A (en) | Thermal protection property tester for fabric system | |
| CN206362683U (en) | Cabin system is tested in a kind of white body accelerated corrosion | |
| CN104889106B (en) | A kind of ultrasonic salt bath composite cleaning machine of floating oscillator and its using method | |
| CN208313780U (en) | Salt spray test equipment | |
| CN114720210A (en) | Intelligent monitoring system and monitoring method for atmospheric pollution | |
| CN201859109U (en) | Environmental test device with alternate salt mist change | |
| CN105509785B (en) | A kind of artificial ice-coating test platform for simulating live icing meteorological condition | |
| CN106768908A (en) | A kind of head can revolve nozzle spray characteristic test apparatus under the simulation operating mode of shifting | |
| CN209543728U (en) | Weather simulation laboratory with air control structure | |
| CN210270022U (en) | Four-comprehensive environment test device | |
| CN205374258U (en) | Dam concrete anti carbon dioxide under water corrodes performance testing device | |
| CN208239272U (en) | A kind of wheel hub salt spray test fitting device | |
| CN213714732U (en) | High wind speed salt fog test device | |
| CN213732447U (en) | Even cement curing chamber atomizes | |
| CN206223102U (en) | Contactless external thermal insulation system overcoat thermal deformation analyzer | |
| CN108414899B (en) | The corrosion tests of electrification in high voltage ERTV anti-pollution flashover coating | |
| CN205003129U (en) | Mixed cloud chamber of portable 3L | |
| CN108062134B (en) | Environmental temperature and humidity control device of heavy-load impact test bed | |
| CN209280854U (en) | The dielectric test equipment of EMU roof insulator under complex environment | |
| CN206114490U (en) | Novel accurate japanning ageing testing device | |
| CN203587479U (en) | Simulation test device for corroding metal facilities in wet-method sulfur forming process |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |