CN110609123B - Polymer elastomer coating film protection system aging test device for simulating actual environment of hydraulic building - Google Patents
Polymer elastomer coating film protection system aging test device for simulating actual environment of hydraulic building Download PDFInfo
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- CN110609123B CN110609123B CN201910959613.0A CN201910959613A CN110609123B CN 110609123 B CN110609123 B CN 110609123B CN 201910959613 A CN201910959613 A CN 201910959613A CN 110609123 B CN110609123 B CN 110609123B
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- 238000012360 testing method Methods 0.000 title claims abstract description 104
- 230000032683 aging Effects 0.000 title claims abstract description 64
- 238000000576 coating method Methods 0.000 title claims abstract description 26
- 239000011248 coating agent Substances 0.000 title claims abstract description 25
- 229920001971 elastomer Polymers 0.000 title claims abstract description 24
- 229920000642 polymer Polymers 0.000 title claims abstract description 24
- 239000000806 elastomer Substances 0.000 title claims abstract description 23
- 239000012530 fluid Substances 0.000 claims abstract description 5
- 230000002093 peripheral effect Effects 0.000 claims abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 21
- 238000007789 sealing Methods 0.000 claims description 6
- 230000000087 stabilizing effect Effects 0.000 claims description 4
- 230000001154 acute effect Effects 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 229920002396 Polyurea Polymers 0.000 description 7
- 239000000463 material Substances 0.000 description 5
- 238000011161 development Methods 0.000 description 4
- 230000018109 developmental process Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000002431 foraging effect Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000007062 hydrolysis Effects 0.000 description 2
- 238000006460 hydrolysis reaction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 239000003381 stabilizer Substances 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 239000011253 protective coating Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000009718 spray deposition Methods 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 230000002277 temperature effect Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0096—Testing material properties on thin layers or coatings
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The device for testing the aging of the high polymer elastomer coating film protection system for simulating the actual environment of the hydraulic building comprises an aging kettle and a rotating structure; the ageing kettle comprises a cylindrical kettle body, the rotating structure is positioned at the bottom of the kettle body and comprises a rotating shaft, the bottom of the rotating shaft is sequentially sleeved with a top plate and a bottom plate which are parallel, a shaft sleeve is arranged on the rotating shaft sleeve, a guide groove is formed in the side face of the shaft sleeve, a shaft rod is arranged on the rotating shaft in an outward extending mode corresponding to the peripheral face of the guide groove, and the tail end of the shaft rod is connected with a supporting rod; a plurality of support columns are arranged between the edges of the top plate and the bottom plate, each support column is hinged with the test piece frame, and the tail ends of the support columns are connected with the outer ends of the test piece frames; the test piece rack is in a grid shape and is provided with a plurality of test piece seats for placing test pieces; the test piece seat is provided with a test surface for contacting with fluid, and the test surface faces away from the rotating shaft and is tangent to a circle where the rotating track of the test piece seat is positioned; the diameters of the top plate and the bottom plate are smaller than the opening, and each test piece frame is completely positioned inside the top plate and the bottom plate when in a folded position.
Description
Technical Field
The invention belongs to the technical field of ageing tests, and particularly relates to a device for simulating an ageing test of a high polymer elastomer coating film protection system in an actual environment of a hydraulic building.
Background
The anti-seepage measures of hydraulic engineering have been the focus of researchers and designers. The test and monitoring data show that the water pressure can promote the micro-crack expansion of the hydraulic building due to the foundation uniform settlement and temperature effect under the limit working condition, thereby directly threatening the stability of the structure. The crack of the water delivery building contacted with water all the year round has the characteristics of large checking difficulty, difficult repair and the like, so that in order to reduce the damage caused by leakage, improve the durability and the safety of the structure, and are necessary to take effective engineering seepage prevention measures before water is introduced or during the overhaul of the hydraulic building. The high polymer elastomer based on the reaction spray forming technology, especially the polyurea elastic coating, has excellent corrosion resistance, hydrolysis resistance and freeze thawing resistance, has good mechanical properties, and can be widely applied as a concrete durability protective coating material in the seepage prevention field of hydraulic buildings. However, investigation shows that in practical application, some polyurea anti-seepage protective elastomer coatings of hydraulic and hydroelectric engineering have aging degradation phenomena with different degrees such as damage, performance reduction, breakage, falling, hydrolysis, skinning, swelling, pulverization and the like in operation, and cannot meet the durability requirement specified by design. This suggests that the mechanical properties of polyurea materials exposed to the hydraulic environment are subject to progressive aging by light, heat and moisture during operation of the structure, and the time that the coating retains the effective mechanical properties is closely related to the durability of the structure, so durability and lifetime prediction of polyurea materials are also receiving increasing attention from researchers.
The method and the failure mode of durability damage simply adopt the past experimental method of durability of thermal oxidation aging and ultraviolet aging polymer coating and system, and the critical parameters and critical values for initiating the aging damage of the anti-seepage protection coating and system are not in accordance with the damage failure rules of the polyurea anti-seepage system in the water immersion environment, the dry-wet alternate environment, the hydraulic action and the water flow scouring environment of the hydraulic building to a great extent, and the life prediction model can not truly reflect the actual conditions of the environments. Therefore, from an objective point of view, the durability research of the polyurea anti-seepage system needs to be established on the basis of an aging acceleration test method and a damage failure mode which are suitable for the use environment, the actual situation can be approached, the life prediction of the polyurea anti-seepage system can be accurately and effectively performed, and the durability design of the hydraulic building anti-seepage protection structure according to the specified service life can be realized.
At present, the polymer aging test device is a constant temperature aging box based on thermal oxidation aging (patent 201710619299.2, a device for testing the cracking resistance of rubber materials), or an illumination aging box based on ultraviolet aging (patent 201720819057.3, ultraviolet aging test box), or a water bath constant temperature aging box based on water shower environment aging) patent 201810839495.5, and is a high-low temperature aging box with a spray device. The above device has the following disadvantages in practical use:
(1) The disposable device has few test pieces and cannot adapt to test pieces with multiple sizes;
(2) Cannot bear water pressure;
(3) The dry-wet alternation test cannot be performed;
(4) The test under the action of high-speed water flow cannot be performed;
(5) The test device is complex;
(6) The test efficiency is low;
(7) The device has high cost;
(8) The rapid accelerated aging test cannot be performed on the test material, so that the test time is long, and the test result is difficult to intuitively display.
Disclosure of Invention
The invention aims to provide a high polymer elastomer coating film protection system aging test device for simulating the actual environment of a hydraulic building, which can create the aging environment of high-temperature, high-pressure and high-speed water flow, is suitable for test pieces with various sizes, has good pressure bearing and sealing effects, is convenient to maintain, is suitable for aging kettles with different radiuses, can reduce the time cost and the cost of the aging test, and improves the test operation efficiency.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
an aging test device for a high polymer elastomer coating film protection system for simulating the actual environment of a hydraulic building comprises an aging kettle and a rotating structure;
the aging kettle comprises a cylindrical kettle body, wherein the top of the kettle body is provided with an opening, and the diameter from the top of the side wall of the kettle body to the periphery of the opening is gradually reduced to form a neck; the opening is closed by a detachable upper cover, the neck is provided with an operation opening, and the operation opening is closed by a sealing cover; the kettle body is provided with a temperature control device and a pressure control device;
the rotary structure is positioned at the bottom of the kettle body and comprises a rotary shaft penetrating through the middle part of the upper cover, and the top of the rotary shaft is positioned above the upper cover and is connected with a driving shaft of a driving motor, so that the rotary structure can synchronously rotate and move up and down with the driving shaft; the aging kettle is provided with a mounting frame at the side, and the driving motor is fixed on the mounting frame; the bottom of the rotating shaft is sequentially sleeved with a parallel top plate and a parallel bottom plate, and the top plate and the bottom plate can synchronously rotate with the rotating shaft; the part of the rotating shaft between the top plate and the bottom plate is sleeved with a shaft sleeve, the side surface of the shaft sleeve is provided with a guide groove, and the guide groove is vertical or forms an acute angle with the vertical direction; the rotating shaft is provided with a shaft lever which extends outwards corresponding to the peripheral surface of the guide groove, the shaft lever is positioned in the guide groove, and the tail end of the shaft lever is connected with the supporting rod through a universal joint; a plurality of support columns are arranged between the edges of the top plate and the bottom plate, and each support column is hinged with a test piece frame, so that the test piece frame can rotate around the support column from a folding position positioned in the top plate and the bottom plate to an unfolding position positioned outside the top plate and the bottom plate; the tail end of the supporting rod is connected with the outer end of the test piece rack through a universal joint; the test piece rack is in a grid shape and is provided with a plurality of test piece seats for placing test pieces; the test piece seat is provided with a test surface for contacting with fluid, and the test surface faces away from the rotating shaft and is tangent to a circle where the rotating track of the test piece seat is positioned; the diameters of the top plate and the bottom plate are smaller than the opening, and each test piece frame is completely positioned inside the top plate and the bottom plate when in a folded position.
In one embodiment, at least four water baffles are circumferentially arranged on the inner wall of the kettle body.
In one embodiment, the cross section of the water baffle is linear, L-shaped or arc-shaped.
In one embodiment, the temperature control device is a jacket arranged on the side wall of the kettle body, and the pressure control device is a pressurized air pump connected with the kettle body.
In one embodiment, the support posts are located on the same circumference and are equiangularly spaced.
In one embodiment, the longitudinal section of the test piece frame is rectangular, the cross section of the test piece frame is in a straight shape, a plurality of vertical stand columns are arranged in the test piece frame, and the test piece seat is fixed on the side face of each stand column.
In one embodiment, the longitudinal section of the test piece frame is rectangular, the cross section of the test piece frame is circular arc, a plurality of vertical stand columns are arranged in the test piece frame, and the test piece seat is fixed on the side face of each stand column.
In one embodiment, a conical stabilizing device is arranged at the bottom of the bottom plate, and a ball body for reducing the rotation friction on the bottom of the aging kettle is arranged at the bottom end of the stabilizing device.
The beneficial effects of the invention are as follows: the aging test device for the high polymer elastomer coating film protection system simulating the actual environment of the hydraulic building can create the aging environment of high-temperature, high-pressure and high-speed water flow, is suitable for test pieces with various sizes, has good pressure bearing and sealing effects, is convenient to maintain, is suitable for aging kettles with different radiuses, can reduce the time cost and the cost of the aging test, and improves the test operation efficiency.
Drawings
FIG. 1 is a schematic diagram showing the structure of the folding position of example 1 of the aging test apparatus for a coating film protecting system for a polymer elastomer, which simulates the actual environment of a hydraulic building.
FIG. 2 is a schematic diagram showing the structure of the development position of example 1 of the aging test apparatus for a polymer elastomer coating film protection system simulating the actual environment of a hydraulic building according to the present invention.
Fig. 3 is a cross-sectional view taken along the direction A-A in fig. 1.
Fig. 4 is a sectional view in the direction B-B of fig. 2.
FIG. 5 is a schematic cross-sectional view of the folded position of example 2 of the device for testing the aging of the coating film protecting system of the polymer elastomer according to the present invention simulating the actual environment of a hydraulic building.
FIG. 6 is a schematic cross-sectional view of the extended position of example 2 of the device for testing the aging of a polymer elastomer coating film protection system according to the present invention simulating the actual environment of a hydraulic building.
FIG. 7 is a schematic cross-sectional view showing the folding position of example 3 of the aging test apparatus for a coating film protecting system for a polymer elastomer according to the present invention simulating the actual environment of a hydraulic building.
FIG. 8 is a schematic cross-sectional view showing the development position of example 3 of the aging test apparatus for a polymer elastomer coating film protection system simulating the actual environment of a hydraulic building according to the present invention.
FIG. 9 is a schematic cross-sectional view showing the development position of example 4 of the aging test apparatus for a polymer elastomer coating film protection system simulating the actual environment of a hydraulic building according to the present invention.
FIG. 10 is a schematic cross-sectional view showing the development position of example 5 of the aging test apparatus for a polymer elastomer coating film protection system simulating the actual environment of a hydraulic building according to the present invention.
Detailed Description
The following describes specific embodiments of the present invention in detail with reference to the drawings.
As shown in figures 1-4, the invention provides a high polymer elastomer coating film protection system aging test device for simulating the actual environment of a hydraulic building, which is used for constructing an accelerated aging environment for flushing by high-temperature, high-pressure and high-speed water flow and comprises an aging kettle 1 and a rotating structure 2.
The ageing kettle 1 comprises a cylindrical kettle body 11, an opening 12 is formed in the top of the kettle body 11, and the diameter from the top of the side wall of the kettle body 11 to the periphery of the opening is gradually reduced to form a neck 13. The opening 12 is closed by a detachable upper cover 14, the neck 13 is provided with an operation opening 15, and the operation opening 15 is closed by a sealing cover 16. The kettle body 11 is provided with a temperature control device and a pressure control device, so that the kettle body has a heating and pressurizing function. The temperature control device can be a jacket arranged on the side wall of the kettle body 11, and the pressure control device can be a pressurized air pump connected with the kettle body 11.
The rotating structure 2 is located at the bottom of the kettle body 11, and comprises a rotating shaft 21 penetrating through the middle of the upper cover 14, wherein the top of the rotating shaft 21 is located above the upper cover 14 and is connected with a driving shaft 31 of the driving motor 3, and can synchronously rotate and move up and down with the driving shaft 31. The ageing cauldron side is equipped with the mounting bracket, and this driving motor 3 is fixed in on this mounting bracket. The bottom of the rotating shaft 21 is sequentially sleeved with a top plate 22 and a bottom plate 23 which are parallel, and the top plate 22 and the bottom plate 23 can synchronously rotate with the rotating shaft 21. The part of the rotating shaft 21 between the top plate 22 and the bottom plate 23 is sleeved with a shaft sleeve 211, the side surface of the shaft sleeve 211 is provided with a guide groove 212, and the guide groove 212 is vertical or forms an acute angle with the vertical direction. The rotating shaft 21 extends outwards corresponding to the circumferential surface of the guiding groove 212, and a shaft lever 213 is disposed in the guiding groove 212, and the end of the shaft lever 213 is connected with the supporting rod 26 through a universal joint. A plurality of support columns 24 are arranged between the edges of the top plate 22 and the bottom plate 23, and two support columns 24 are symmetrically arranged in this embodiment by taking two as an example. Each support column 24 is hinged to a specimen holder 25 such that the specimen holder 25 can rotate about the support column 24 from a folded position within the top and bottom panels 22, 23 to an unfolded position outside of the top and bottom panels 22, 23.
The tail end of the supporting rod 26 is connected with the outer end of the test piece frame 25 through a universal joint, and when the rotating shaft 21 moves from top to bottom, the shaft lever 213 drives the supporting rod 26 to push the test piece frame 25 outwards so as to enable the test piece frame to be unfolded to an unfolding position; conversely, when the rotating shaft 21 moves from bottom to top, the shaft 213 drives the supporting rod 26 to pull the specimen rack 25 inward, so that the specimen rack is retracted to the folded position. The specimen holder 25 is in a grid shape to reduce fluid resistance, and is provided with a plurality of specimen holders 27 for holding specimens. Specifically, the specimen holder 25 has a rectangular longitudinal section, a straight cross section, a plurality of vertical columns 251 are provided inside, and the specimen holder 27 is fixed to the side surface of the column 251. The test piece seat 27 can be fixed on the upright 251 through a buckle, and the test piece seat 27 can be easily detached through the operation opening 15 at the upper part of the aging kettle 1. The test piece holder 27 has a test surface for contact with a fluid, which test surface faces away from the rotational axis 21 and is tangential to the circle in which the rotational path of the test piece holder 27 is located. The top and bottom plates 22, 23 are smaller in diameter than the opening 12 and each specimen rack 25 is located entirely inside the top and bottom plates 22, 23 in the folded position. Thus, the rotary structure 2 of the invention can be suitable for different ageing kettles, as long as the top opening of the rotary structure is larger than that of the top plate and the bottom plate.
In use, the drive shaft 31 of the drive motor 3 first suspends the rotating structure 2, and the shaft 213 is positioned at the uppermost part of the guide groove 212 due to gravity, and the specimen holder 25 is folded. Then put into the bottom of the ageing kettle body 11 through the opening 12 of the ageing kettle 1, in the process of putting down, the shaft lever 213 moves downwards to drive the supporting rod 26 to push the specimen rack to be unfolded until the specimen rack is unfolded. Conversely, when the specimen holder 25 is required to be retracted, the rotation shaft 21 is pulled upward, and the shaft 213 is moved upward. Further, a conical stabilizer 231 is disposed at the bottom of the bottom plate 23, and a ball 232 for reducing the rotational friction to the bottom of the aging tank is disposed at the bottom end of the stabilizer 231. When the specimen rack 25 is subjected to stress and expands, the ball 232 is contacted with the bottom of the kettle body 11 of the aging kettle 1.
As shown in fig. 5 and 6, it is an embodiment 2 of the present invention, which is different from the embodiment 1 in that the number of the support columns 24 and the specimen holders 25 is three. The support columns 24 are located on the same circumference and are equiangularly spaced, i.e., 120 degrees apart.
As shown in fig. 7 and 8, which are different from embodiment 2 in embodiment 3 of the present invention, the specimen holder 25 has a rectangular longitudinal section and an arc-shaped cross section, a plurality of vertical columns 251 are provided inside, and the specimen holder 27 is fixed to the side surface of the column 251.
As shown in fig. 9 and 10, embodiments 4 and 5 of the present invention are different from embodiment 3 in that at least four water baffles 4 are circumferentially arranged on the inner wall of the kettle body 1. The cross section of the water baffle 4 is linear, L-shaped or arc-shaped and is used for eliminating the tangential velocity of water under the action of the test piece rack 25.
The aging test device for the high polymer elastomer coating film protection system simulating the actual environment of the hydraulic building can establish the aging environment of high-temperature, high-pressure and high-speed water flow through the temperature control device, the pressure control device and the rotating structure, is suitable for test pieces with various sizes, has good pressure bearing and sealing effects, is convenient to maintain, can be folded and unfolded, can be suitable for aging kettles with different radiuses, can reduce the time cost and the cost of the aging test, and improves the test operation efficiency.
It should be noted that the foregoing description is only a preferred embodiment of the present invention, and it is intended to enable those skilled in the art to better understand the present invention, and should not be construed as limiting the scope and application of the present invention, but any modifications, equivalent substitutions, improvements, etc. that are within the spirit or principle of the present invention shall be included in the scope of the present invention.
Claims (4)
1. The device for testing the aging of the high polymer elastomer coating film protection system simulating the actual environment of the hydraulic building is characterized by comprising an aging kettle and a rotating structure;
the aging kettle comprises a cylindrical kettle body, wherein the top of the kettle body is provided with an opening, and the diameter from the top of the side wall of the kettle body to the periphery of the opening is gradually reduced to form a neck; the opening is closed by a detachable upper cover, the neck is provided with an operation opening, and the operation opening is closed by a sealing cover; the kettle body is provided with a temperature control device and a pressure control device;
the rotary structure is positioned at the bottom of the kettle body and comprises a rotary shaft penetrating through the middle part of the upper cover, and the top of the rotary shaft is positioned above the upper cover and is connected with a driving shaft of a driving motor, so that the rotary structure can synchronously rotate and move up and down with the driving shaft; the aging kettle is provided with a mounting frame at the side, and the driving motor is fixed on the mounting frame; the bottom of the rotating shaft is sequentially sleeved with a parallel top plate and a parallel bottom plate, and the top plate and the bottom plate can synchronously rotate with the rotating shaft; the part of the rotating shaft between the top plate and the bottom plate is sleeved with a shaft sleeve, the side surface of the shaft sleeve is provided with a guide groove, and the guide groove is vertical or forms an acute angle with the vertical direction; the rotating shaft is provided with a shaft lever which extends outwards corresponding to the peripheral surface of the guide groove, the shaft lever is positioned in the guide groove, and the tail end of the shaft lever is connected with the supporting rod through a universal joint; a plurality of support columns are arranged between the edges of the top plate and the bottom plate, and each support column is hinged with a test piece frame, so that the test piece frame can rotate around the support column from a folding position positioned in the top plate and the bottom plate to an unfolding position positioned outside the top plate and the bottom plate; the tail end of the supporting rod is connected with the outer end of the test piece rack through a universal joint; the test piece rack is in a grid shape and is provided with a plurality of test piece seats for placing test pieces; the test piece seat is provided with a test surface for contacting with fluid, and the test surface faces away from the rotating shaft and is tangent to a circle where the rotating track of the test piece seat is positioned; the diameters of the top plate and the bottom plate are smaller than the diameters of the opening, and all test pieces are completely positioned inside the top plate and the bottom plate when the test pieces are put in the folding position;
wherein, at least four water baffles are circumferentially arranged on the inner wall of the kettle body;
the section of the water baffle is linear, L-shaped or circular arc;
the longitudinal section of the test piece frame is rectangular, the cross section of the test piece frame is in a straight shape, a plurality of vertical stand columns are arranged in the test piece frame, and the test piece seat is fixed on the side face of each stand column;
the longitudinal section of the test piece frame is rectangular, the cross section of the test piece frame is arc-shaped, a plurality of vertical stand columns are arranged in the test piece frame, and the test piece seat is fixed on the side face of each stand column.
2. The aging test device for the polymer elastomer coating film protection system simulating the actual environment of the hydraulic building according to claim 1, which is characterized in that: the temperature control device is a jacket arranged on the side wall of the kettle body, and the pressure control device is a pressurized air pump connected with the kettle body.
3. The aging test device for the polymer elastomer coating film protection system simulating the actual environment of the hydraulic building according to claim 1, which is characterized in that: the support columns are located on the same circumference and are arranged at equal angular intervals.
4. The aging test device for the polymer elastomer coating film protection system simulating the actual environment of the hydraulic building according to claim 1, which is characterized in that: the bottom of the bottom plate is provided with a conical stabilizing device, and the bottom end of the stabilizing device is provided with a sphere for reducing the rotating friction of the bottom of the aging kettle.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910959613.0A CN110609123B (en) | 2019-10-10 | 2019-10-10 | Polymer elastomer coating film protection system aging test device for simulating actual environment of hydraulic building |
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| CN201910959613.0A CN110609123B (en) | 2019-10-10 | 2019-10-10 | Polymer elastomer coating film protection system aging test device for simulating actual environment of hydraulic building |
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| CN110609123B true CN110609123B (en) | 2024-03-19 |
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| CN203643446U (en) * | 2013-12-11 | 2014-06-11 | 江苏佳尔利装饰材料有限公司 | Artificial paint film aging tester |
| CN204330459U (en) * | 2014-11-14 | 2015-05-13 | 长安大学 | A kind of specimen holder |
| CN205797039U (en) * | 2016-06-15 | 2016-12-14 | 郑州正弘机械设备有限公司 | A kind of agitating device preventing material from precipitating |
| CN206945501U (en) * | 2016-12-08 | 2018-01-30 | 海洋化工研究院有限公司 | A kind of multifunction manual ageing test apparatus for coating |
| CN106706881A (en) * | 2016-12-16 | 2017-05-24 | 广东省生态环境技术研究所 | Method and device for achieving analog-matching runoff with stable flow and sand content |
| CN108931470A (en) * | 2017-05-27 | 2018-12-04 | 金伟杰 | A kind of salt spray test sample rack |
| CN107380477A (en) * | 2017-08-31 | 2017-11-24 | 长光卫星技术有限公司 | Folding ejector can quickly be assembled |
| CN108560440A (en) * | 2018-06-21 | 2018-09-21 | 贵州大学 | Engineering explosion protective cradle a kind of rotatable and with safeguard function |
| CN211014190U (en) * | 2019-10-10 | 2020-07-14 | 中国水利水电科学研究院 | Aging test device for protection system simulating the actual environment of hydraulic structures |
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