CN209745850U - Vacuum thermal aging device for sealant - Google Patents
Vacuum thermal aging device for sealant Download PDFInfo
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- CN209745850U CN209745850U CN201822275644.8U CN201822275644U CN209745850U CN 209745850 U CN209745850 U CN 209745850U CN 201822275644 U CN201822275644 U CN 201822275644U CN 209745850 U CN209745850 U CN 209745850U
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- 239000000565 sealant Substances 0.000 title claims abstract description 48
- 238000003878 thermal aging Methods 0.000 title claims abstract description 33
- 230000032683 aging Effects 0.000 claims abstract description 149
- 238000001514 detection method Methods 0.000 claims abstract description 33
- 239000000463 material Substances 0.000 claims abstract description 22
- 238000007789 sealing Methods 0.000 claims abstract description 8
- 239000003292 glue Substances 0.000 claims abstract description 5
- 230000008878 coupling Effects 0.000 claims abstract description 3
- 238000010168 coupling process Methods 0.000 claims abstract description 3
- 238000005859 coupling reaction Methods 0.000 claims abstract description 3
- 238000007664 blowing Methods 0.000 claims description 64
- 238000010438 heat treatment Methods 0.000 abstract description 5
- 229920001296 polysiloxane Polymers 0.000 description 12
- 238000005192 partition Methods 0.000 description 6
- 229910052782 aluminium Inorganic materials 0.000 description 5
- 238000001291 vacuum drying Methods 0.000 description 5
- 238000004026 adhesive bonding Methods 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 4
- 239000003566 sealing material Substances 0.000 description 4
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- 239000010935 stainless steel Substances 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- -1 cold rolled plate Inorganic materials 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000012812 sealant material Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
Landscapes
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
the utility model discloses a sealed vacuum thermal ageing device for glue. The vacuum thermal aging device for the sealant comprises an aging box, a vacuum detection device, a temperature detection device, a shelf, a temperature adjusting device and a rotation driving part; the aging box is provided with an aging cavity, a window communicated with the aging cavity, a vacuum interface communicated with the aging cavity and a box door used for sealing or opening the window; the vacuum detection device is installed at the outer wall of ageing oven and communicates the ageing chamber in order to be used for detecting the vacuum of ageing intracavity, and the temperature detection device is used for detecting the temperature of ageing intracavity, and the temperature regulation device is established in the ageing chamber in order to be used for carrying out the temperature regulation to the ageing chamber, and shelf rotatable coupling is placed in order to be used for supplying to treat ageing sealant test material in the ageing chamber, and rotation drive part connects in the shelf in order to be used for driving the shelf rotation. The vacuum thermal aging device for the sealant can realize small temperature gradient of a working chamber in a cavity and uniform vacuum heating of each test article in the working chamber of the aging box.
Description
Technical Field
the utility model relates to a sealed vacuum thermal ageing device that uses of gluing.
Background
The sealing glue is a sealing material which deforms along with the shape of the sealing surface, is not easy to flow, has certain cohesiveness, is an adhesive used for filling gaps among members to play a role in sealing, and has the functions of water proofing, leakage proofing, sound insulation, heat insulation and the like. With the increase of the service time, the sealing effect of the sealant is gradually reduced until the service value is completely lost, and in order to test the durability of the sealant, namely the actual service life, the aging test of the sealing material is required. Common aging test methods include laboratory artificial accelerated aging tests and natural aging, but the latter has a long period and high test cost, so in order to accelerate the aging test speed, a laboratory is usually adopted to simulate and strengthen the aging damage factors of the materials so as to obtain a result close to the natural aging in a short time. The vacuum heat aging is a common artificial accelerated aging method, and a matched device, namely a vacuum heat aging test box, is an indispensable important component.
when aging treatment is carried out on a large number of samples, the vacuum thermal aging test box needs to carry out uniform temperature aging on all test materials in a working chamber in a vacuum state. One of the key requirements is to ensure that each sample in the whole batch of samples is processed under the same environmental conditions, otherwise, the processed samples are subjected to different environmental load total fluxes and different expression forms, or the test data is large in fluctuation and unrepresentative. The temperature difference in the cavity of the traditional vacuum thermal aging test box is large, the vacuum thermal aging test box of a certain brand is actually tested, the temperature of 50 ℃ is set, and after the vacuum degree is kept for 6 hours under the condition of-0.095 MPa, the temperature difference between the highest temperature and the lowest temperature of each area in the cavity of the vacuum thermal aging test box is still more than 10 ℃, so the temperature gradient problem is more obvious under the condition of higher temperature.
SUMMERY OF THE UTILITY MODEL
therefore, the vacuum thermal aging device for the sealant, which is provided aiming at the defect of insufficient capacity of the existing vacuum drying box device, has small temperature gradient of the working chamber in the cavity and can uniformly vacuum heat each test article in the working chamber of the aging box, is needed.
A vacuum thermal aging device for sealant comprises an aging box, a vacuum detection device, a temperature detection device, a shelf, a temperature regulation device and a rotation driving part; the aging box is provided with an aging cavity, a window communicated with the aging cavity, a vacuum interface communicated with the aging cavity and a box door used for sealing or opening the window; the vacuum detection device is installed the outer wall and the intercommunication of ageing oven the ageing cavity is in order to be used for detecting vacuum in the ageing cavity, the temperature regulation device is established the ageing cavity is in order to be used for right the ageing cavity carries out temperature regulation, the temperature detection device is used for detecting the temperature in the ageing cavity, shelf rotatable coupling is in order to be used for supplying to treat ageing sealed glue test material and place in the ageing cavity, rotate drive component connect in the shelf is in order to be used for the drive the shelf rotates.
In one embodiment, the vacuum thermal aging device for the sealant further comprises a rotating shaft; the one end of axis of rotation is located the outside and the other end of ageing oven run through the ageing oven and extend to the ageing intracavity, the axis of rotation with ageing oven movive seal, rotate the drive part and be located the outside of ageing oven and connect in the axis of rotation is in order to be used for through the drive the axis of rotation rotates and drives the shelf rotates.
in one embodiment, the rotating shaft penetrates through the aging box from the top of the aging box, the rotating shaft is vertically arranged, and the shelf is horizontally arranged.
in one embodiment, the number of the shelves is multiple, the shelves are arranged in parallel, a space is reserved between every two adjacent shelves, and the temperature detection device is arranged on each shelf.
In one embodiment, the vacuum thermal aging device for the sealant further comprises an internal circulation device, wherein the internal circulation device comprises a plurality of air blowing devices; the air blowing devices are arranged in the aging cavity and located on the shelves, the air blowing devices are arranged on the shelves, and the air blowing devices on the two adjacent shelves are distributed in a staggered mode in the vertical direction.
In one embodiment, the vacuum thermal aging device for the sealant further comprises a display device; the display device is installed the outer wall of ageing oven and is connected vacuum detection device temperature detection device and rotation driving unit, the display device is used for showing vacuum detection device detects the vacuum in the ageing cavity, temperature detection device detects the temperature in the ageing cavity and the rotational speed of rotation driving unit.
In one embodiment, the temperature detection means is provided on the shelf.
In one embodiment, the vacuum detection device is a vacuum gauge and the temperature detection device is a temperature sensor.
In one embodiment, the aging box is a cylindrical box, and the aging cavity is a cylindrical cavity.
In one embodiment, the box door is rotatably connected to the burn-in box.
the vacuum thermal ageing device for the sealant can achieve the purposes that the temperature gradient of the working chamber in the cavity is small, and each test object in the working chamber of the ageing box can be uniformly heated in vacuum.
The vacuum thermal aging device for the sealant is also provided with an internal circulation device, and the internal circulation device comprises a plurality of blowing devices; each shelf is provided with a blowing device, and the blowing devices on two adjacent shelves are distributed in a staggered manner in the vertical direction. Compare the convection current that traditional fan on setting up the inner wall produced and have some marginal area still to have temperature gradient's drawback, the utility model discloses set up the temperature that the device of blowing can even whole ageing oven on rotatable baffle, reduce the temperature gradient in the ageing oven to minimum so that do not have temperature gradient. If the blowing device is fixed on the inner wall, the blowing device only blows the test piece along a line, and the temperature in the whole aging box cannot be uniform. If the air blowing devices on two adjacent shelves are distributed at the same position in the vertical direction, the test strip on the concentric circles of the partition plate experiences the same environmental load as a whole, but the partition plate itself has a temperature gradient, for example, a temperature gradient exists between the edge and the center of the partition plate. The utility model provides a device of blowing on two adjacent shelves distributes in vertical direction dislocation, can eliminate above-mentioned temperature gradient. The utility model discloses mutually support the inner loop function that has realized the ageing oven with the device of blowing on rotatable baffle and two adjacent shelves between the dislocation distribution in vertical direction.
Compared with the traditional conventional vacuum drying oven, the vacuum heat aging device for the sealant has the following beneficial effects:
1. the utility model discloses a rotate drive part and drive the shelf at the uniform velocity rotatory, every circulation round can make the sealed experimental material of gluing of treating ageing on the shelf stand same total heat load, and the sample is put the concentric circle position on the shelf of appearance simultaneously, can further reduce temperature gradient's influence.
2. the utility model adopts the structure that the air blowing devices arranged on two adjacent shelves are distributed in a staggered manner in the vertical direction, and the air blowing devices in the aging cavity can blow air in a staggered manner, so that the micro air molecules in the aging cavity accelerate heat convection, and the temperature is more uniform; meanwhile, the temperature in the aging cavity can be more uniform by combining the rotating characteristic of the 1 st-point shelf. For on being fixed in the inner wall with the device of blowing, this patent will blow the device and place in on the pivoted baffle, can realize the whole temperature homogeneous in the studio, and the device of blowing of fixed can only carry out the convection current homogeneous to the region on the line, still has the dead angle in the studio, and especially under the vacuum environment molecular number is the reduction condition of geometric progression problem more obvious.
3. The utility model discloses set up the ageing chamber and be the cylinder chamber, reduced the temperature heterogeneity of traditional conventional vacuum drying oven's cuboid inner chamber.
drawings
fig. 1 is a schematic view of a vacuum thermal aging apparatus for a sealant according to an embodiment.
description of the reference numerals
10: the sealant is subjected to vacuum thermal aging; 100: an aging box; 110: a window; 120: an aging chamber; 130: a vacuum interface; 140: a box door; 200: a vacuum detection device; 300: a temperature detection device; 400: a shelf; 500: a rotation driving member; 600: a display device; 700: a blowing device; 800: and rotating the shaft.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
it will be understood that when an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When an element is referred to as being "mounted on" another element, it can be directly mounted on the other element or intervening elements may also be present.
unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
referring to fig. 1, an embodiment of the present invention provides a vacuum thermal aging apparatus 10 for sealant, which includes an aging box 100, a vacuum detection device 200, a temperature detection device 300, a shelf 400, a temperature adjustment device, a rotation driving part 500, and a controller.
The burn-in chamber 100 has a burn-in chamber 120, a window 110 in communication with the burn-in chamber 120, a vacuum port 130 in communication with the burn-in chamber 120, and a door 140 for sealing or opening the window 110. The window 110 and the vacuum port 130 are located on the sidewall of the burn-in chamber 100, and the vacuum port 130 is used for connecting a vacuum device, such as a vacuum pump.
the vacuum detecting device 200 is installed at an outer wall of the burn-in chamber 100 and communicates with the burn-in chamber 120 for detecting the degree of vacuum in the burn-in chamber 120.
A temperature adjusting device, which is not shown in fig. 1, is provided in the burn-in chamber 120 for adjusting the temperature of the burn-in chamber 120. The temperature adjusting device is connected with the controller.
the temperature sensing device 300 is used to sense the temperature in the burn-in chamber 120. The temperature detector is connected with the controller. The controller can be a PLC or a microcomputer PID and the like.
A shelf 400 is pivotally connected within the aging chamber 120 for placement of the sealant test material to be aged. The edge and both surfaces of the shelf 400 are spaced apart from the inner wall of the aging chamber 120.
The rotation driving part 500 is connected to the shelf 400 for driving the shelf 400 to rotate. The rotational driving part 500 may be a driving motor. The rotational driving part 500 is connected to the controller.
preferably, the aging chamber 100 is a cylindrical chamber, and the aging chamber 120 is a cylindrical chamber, in which case the shelf 400 is a circular plate.
The parameters of the burn-in box 100 are as follows:
1) The shape is as follows: a cylindrical shape;
2) Power supply voltage: 220V 50 HZ;
3) input power: 300-;
4) Temperature control range: RT +5-500 ℃;
5) Temperature resolution: less than or equal to 0.05 ℃;
6) temperature fluctuation degree: less than or equal to +/-1 ℃;
7) Temperature control mode: the controller automatically controls;
8) Reaching the vacuum degree: less than or equal to 133 Pa;
9) working temperature: RT +5-300 ℃;
10) The aging chamber 120: a cylindrical cavity, and not less than 200mm diameter x 500mm height;
11) External dimensions of the burn-in box 100: not less than 600mm x 500 mm;
12) Aging oven 100 material: including but not limited to stainless steel, cold rolled plate, aluminum plate, etc.
When the aging chamber 120 is used, the vacuum degree in the aging chamber 120 is kept to be more than-0.09 MPa, and the temperature gradient in the aging chamber 120 is less than 1 ℃.
In one particular example, the door 140 may be pivotally coupled to the burn-in chamber 100.
In a specific example, the vacuum thermal aging apparatus for sealant 10 further includes a display device 600. The display device 600 is installed on the outer wall of the aging oven 100 and connected to the vacuum detecting device 200, the temperature detecting device 300 and the rotation driving part 500, and the display device 600 is used for displaying the vacuum degree in the aging chamber 120 detected by the vacuum detecting device 200, the temperature in the aging chamber 120 detected by the temperature detecting device 300 and the rotation speed of the rotation driving part 500.
Further, the temperature detection device 300 is provided on the shelf 400. Preferably, each shelf 400 is provided with a temperature detection device 300 thereon.
in one particular example, the vacuum thermal aging apparatus for sealants 10 further includes a rotating shaft 800. One end of the rotation shaft 800 is located outside the aging box 100 and the other end penetrates through the aging box 100 and extends into the aging chamber 120, the rotation shaft 800 is in dynamic seal with the aging box 100, and the rotation driving part 500 is located outside the aging box 100 and is connected to the rotation shaft 800 so as to drive the shelf 400 to rotate by driving the rotation shaft 800 to rotate.
in a specific example, the rotary shaft 800 penetrates the aging box 100 from the top of the aging box 100. The rotation shaft 800 is vertically disposed and the shelf 400 is horizontally disposed. The rotation driving part 500 is provided at the top of the aging box 100.
Further, the number of the shelves 400 is plural. The plurality of shelves 400 are arranged in parallel. There is a space between two adjacent shelves 400, and preferably, the space between two adjacent shelves 400 is equal. Each shelf 400 is provided with a temperature detection device 300.
the parameters of the shelf 400 meet the following requirements:
1) The number of the shelves 400 is not less than two;
2) a plurality of concentric circle marking lines are drawn on each shelf 400 for placing sealant test materials to be aged at equal intervals;
3) The material of the shelf 400 includes, but is not limited to, stainless steel, cold rolled plate, aluminum plate;
4) The middle of each shelf 400 close to the rotating shaft 800 is additionally provided with a temperature detection device 300 to monitor and feed back the temperature in the aging chamber 120 in real time;
5) the shelves 400 of each tier are rotated in synchronization.
6) Input power to the rotary drive member 500: 20-2000W;
7) Rotation speed of the rotational driving part 500: 1-100 rpm.
In a specific example, the vacuum thermal aging apparatus for sealant 10 further includes an internal circulation device connected to the controller, the internal circulation device including a plurality of air blowing devices 700. The blowing devices 700 are arranged in the aging chamber 120 and located on the shelves 400, each shelf 400 is provided with a blowing device 700, and the blowing devices 700 on two adjacent shelves 400 are distributed in a staggered manner in the vertical direction. The blowing device 700 may be a heat-resistant fan. The plurality of blowing devices 700 are electrically connected to the conductive member through brushes.
The vacuum thermal aging device for the sealant is also provided with an internal circulation device, and the internal circulation device comprises a plurality of blowing devices 700; each shelf is provided with a blowing device 700, and the blowing devices 700 on two adjacent shelves are distributed in a staggered manner in the vertical direction. Compare the convection current that the fan produced on the traditional setting inner wall and have some marginal area still to have temperature gradient's drawback, the utility model discloses set up the temperature in the even whole ageing oven 100 of device 700 ability of blowing on rotatable baffle, reduce the temperature gradient in the ageing oven 100 to minimum so that do not have temperature gradient. If the blowing device 700 is fixed on the inner wall, the blowing device 700 blows the test piece along a line only, and the temperature in the whole burn-in box 100 is not uniform. If the air blowing devices 700 on two adjacent shelves are distributed at the same position in the vertical direction, the test strip on the concentric circles of the partition plate experiences the same environmental load as a whole, but the partition plate itself has a temperature gradient, for example, between the edge and the center of the partition plate. The utility model provides a device 700 of blowing on two adjacent shelves distributes in the dislocation of vertical direction, can eliminate above-mentioned temperature gradient. The utility model discloses mutually support the inner loop function that has realized in the ageing oven 100 with the device 700 of blowing on rotatable baffle and two adjacent shelves between the dislocation distribution in vertical direction.
1) At least one blowing device 700 is provided on each shelf 400, and the blowing device 700 is powered by electric brushes;
2) The position of the blowing device 700 on the shelf 400 is adjustable, and after the position is adjusted, the blowing device 700 is fixed on the shelf 400;
3) The size of the blowing device 700: not less than 50mm x 10 mm;
4) blowing device 700 material: stainless steel, heat resistant plastics (PPS, LCP, high temperature nylon PI, PTFE, etc.);
5) The blowing device 700 inputs power: 10-500W;
6) rotation speed of the blowing device 700: 20-500 rpm;
7) The air blowing devices 700 on two adjacent shelves 400 are distributed in a staggered manner in the vertical direction, if the air blowing devices 700 are positioned diagonally, the air directions blown by the air blowing devices 700 are opposite, and the arrangement enables the micro air in the aging chamber 120 to form an internal circulation similar to a shape of a Chinese character '8'.
preferably, the vacuum detecting device 200 is a vacuum gauge and the temperature detecting device 300 is a temperature sensor.
in a specific example, the temperature adjustment device may be a heating coil. The heating coils are circumferentially distributed on the inner wall of the aging chamber 120. And the heating coils arranged in a surrounding manner are matched, so that concentric temperature gradients are formed in the cylindrical cavity, and the influence of the temperature gradients is further reduced.
The vacuum thermal aging device 10 for sealant can achieve the purpose that the temperature gradient of the working chamber in the cavity is small, and each test object in the working chamber of the aging box 100 can be uniformly vacuum-heated.
compared with the conventional vacuum drying oven, the vacuum thermal aging device 10 for the sealant has the following beneficial effects:
1. the utility model discloses a rotate drive part 500 and drive shelf 400 at the uniform velocity rotatory, every circulation round can make the sealed experimental material of gluing of treating ageing on the shelf 400 stand same total heat load, and the concentric circle position on appearance shelf 400 is put to the sample simultaneously, can further reduce temperature gradient's influence.
2. the utility model adopts the structure that the blowing devices 700 arranged on two adjacent shelves 400 are distributed in a staggered manner in the vertical direction, and the blowing devices 700 in the aging chamber 120 can blow in a staggered manner, so that the micro air molecules in the aging chamber 120 accelerate the heat convection, and the temperature is more uniform; the combination of the rotation feature of the 1 st shelf 400 can make the temperature in the aging chamber 120 uniform. For on being fixed in the inner wall with the device 700 of blowing, this patent is arranged the device 700 of blowing on the pivoted baffle 400, can realize that the whole temperature is homogeneous in the studio, and fixed device 700 of blowing can only carry out the convection current homogeneous to the region on the same line, still has the dead angle in the studio, and especially under the vacuum environment molecular number is the reduction condition of geometric progression problem more obvious.
3. The utility model discloses set up ageing chamber 120 and be the cylinder chamber, reduced the temperature heterogeneity of traditional conventional vacuum drying oven's cuboid inner chamber.
4. the utility model discloses be equipped with the heating coil that the surrounding type set up for the temperature gradient of concentric circles is formed in the cylindrical cavity, further realizes reducing temperature gradient's influence.
Example 1
this embodiment adopts the utility model discloses a sealed vacuum thermal ageing device 10 for glue treats ageing sealed ageing tests of gluing experimental materials.
Wherein, the parameters of the aging box 100 are as follows:
1) Shape: a cylindrical shape;
2) Power supply voltage: 220V 50 HZ;
3) Input power: 2000W;
4) temperature control range: RT +10-150 ℃;
5) Temperature resolution: less than or equal to 0.05 ℃;
6) temperature fluctuation degree: less than or equal to +/-1 ℃;
7) Temperature control mode: the controller automatically controls;
8) Reaching the vacuum degree: 133 Pa;
9) Working temperature: RT +10-100 ℃;
10) The aging chamber 120: a cylindrical cavity 300mm in diameter by 700mm in height;
11) external dimensions of the burn-in box 100: 1000mm × 700mm × 700 mm;
12) aging oven 100 material: stainless steel.
When the aging chamber 120 is used, the vacuum degree in the aging chamber 120 is kept to be more than-0.09 MPa, and the temperature gradient in the aging chamber 120 is less than 1 ℃.
The parameters of the shelf 400 meet the following requirements:
1) The number of layers of the shelf 400 is three;
2) three concentric circle marking lines are drawn on each shelf 400 for placing sealant test materials to be aged at equal intervals;
3) the shelf 400 is made of an aluminum plate;
4) The middle of each shelf 400 close to the rotating shaft 800 is additionally provided with a temperature detection device 300 to monitor and feed back the temperature in the aging chamber 120 in real time;
5) The shelves 400 of each tier are rotated in synchronization.
6) input power to the rotary drive member 500: 500W;
7) Rotation speed of the rotational driving part 500: 50 rpm.
The blowing device 700 is a heat-resistant fan. The parameters of the heat-resistant fan were as follows:
1) each shelf 400 has a blowing device 700 thereon, and the blowing device 700 is powered by an electric brush;
2) The position of the blowing device 700 on the shelf 400 is adjustable, and after the position is adjusted, the blowing device 700 is fixed on the shelf 400;
3) The size of the blowing device 700: 60mm × 50mm × 15 mm;
4) Blowing device 700 material: heat-resistant plastic PI;
5) the blowing device 700 inputs power: 200W;
6) rotation speed of the blowing device 700: 100 rpm;
7) The blowing devices 700 on two adjacent shelves 400 are distributed in a staggered manner in the vertical direction, for example, the blowing devices 700 are placed diagonally, and the wind directions are opposite, so that a small amount of air in the aging chamber 120 forms 8-shaped internal circulation.
during vacuum heat aging treatment, vacuum heat aging treatment aiming at different requirements of different sealant materials can be realized by setting the vacuum degree, the temperature and the rotating speed of the shelf 400. If the silicone structure sealant test piece is subjected to an artificial accelerated aging test, the silicone structure sealant test piece consists of base materials and a silicone structure sealant layer, wherein the silicone structure sealant layer is positioned between the two base materials.
1) the vacuum pump generates a vacuum degree of-0.095 MPa to the aging chamber 120 and maintains the vacuum degree, the temperature of the temperature adjusting device is set to be 50 ℃, and the rotating speed of the rotating shaft 800 driven by the rotating driving part 500 is 5 rpm;
2) Substrate size: length 50mm, width 50mm, height 12 mm;
3) Base material: one surface of glass and one surface of aluminum;
4) the silicone structure sealant test piece is an H-shaped test piece, the upper and lower base materials are respectively glass-aluminum materials, the middle is a silicone structure sealing material, and the silicone structure sealing material is adhered to the upper and lower base materials.
5) The size of the silicone structural sealant test piece is as follows: length 50mm, width 12mm, height 12 mm;
6) The number of the silicone structural sealant test pieces is as follows: 30 pieces of
7) 10 silicone structure sealant test pieces are placed on each layer of shelf 400 and placed on the concentric circle marking line with the same radius and taking the driving shaft as the center of a circle, and the silicone structure sealant test pieces are uniformly placed in a circular shape, so that the temperature gradient of each silicone structure sealant test piece is kept consistent.
8) The box door 140 is closed, the aging chamber 120 is vacuumized by the vacuum pump, when the aging chamber 120 reaches the vacuum degree of-0.095 MPa and the temperature reaches 50 ℃ (the chamber wall), the state is stabilized for half an hour, the temperatures of the temperature sensors in the middle of the three layers of shelves 400 are 49.6 ℃, 49.2 ℃ and 49.3 ℃, and therefore, the temperature difference between the shelves 400 in the aging chamber 120 is smaller than 1 ℃. The vacuum thermal aging device 10 for the sealant can achieve the purposes that the temperature gradient of the working chamber in the cavity is small, and each test object in the working chamber of the aging box can be uniformly heated in vacuum.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. a vacuum thermal aging device for sealant is characterized by comprising an aging box, a vacuum detection device, a shelf, a temperature adjusting device, a temperature detection device and a rotation driving part; the aging box is provided with an aging cavity, a window communicated with the aging cavity, a vacuum interface communicated with the aging cavity and a box door used for sealing or opening the window; the vacuum detection device is installed the outer wall and the intercommunication of ageing oven the ageing cavity is in order to be used for detecting vacuum in the ageing cavity, the temperature regulation device is established the ageing cavity is in order to be used for right the ageing cavity carries out temperature regulation, the temperature detection device is used for detecting the temperature in the ageing cavity, shelf rotatable coupling is in order to be used for supplying to treat ageing sealed glue test material and place in the ageing cavity, rotate drive component connect in the shelf is in order to be used for the drive the shelf rotates.
2. The vacuum thermal aging apparatus for sealants according to claim 1, further comprising a rotating shaft; the one end of axis of rotation is located the outside and the other end of ageing oven run through the ageing oven and extend to the ageing intracavity, the axis of rotation with ageing oven movive seal, rotate the drive part and be located the outside of ageing oven and connect in the axis of rotation is in order to be used for through the drive the axis of rotation rotates and drives the shelf rotates.
3. The vacuum thermal aging apparatus for sealants as in claim 2, wherein said rotating shaft penetrates said aging box from the top thereof, said rotating shaft is vertically disposed, and said shelf is horizontally disposed.
4. The vacuum thermal aging apparatus for sealants as in claim 3, wherein said shelf is plural in number, a plurality of said shelves are disposed in parallel with a space between two adjacent said shelves, and each of said shelves is provided with said temperature detecting device.
5. The vacuum thermal aging apparatus for sealants according to claim 4, further comprising an internal circulation device including a plurality of blowing devices; the air blowing devices are arranged in the aging cavity and located on the shelves, the air blowing devices are arranged on the shelves, and the air blowing devices on the two adjacent shelves are distributed in a staggered mode in the vertical direction.
6. The vacuum heat aging apparatus for sealants according to any one of claims 1 to 5, further comprising a display device; the display device is installed the outer wall of ageing oven and is connected vacuum detection device temperature detection device and rotation driving unit, the display device is used for showing vacuum detection device detects the vacuum in the ageing cavity, temperature detection device detects the temperature in the ageing cavity and the rotational speed of rotation driving unit.
7. the vacuum thermal aging apparatus for sealants according to claim 6, wherein the temperature detecting device is provided on the shelf.
8. the vacuum thermal aging apparatus for sealants according to any one of claims 1 to 5, wherein the vacuum detecting device is a vacuum gauge and the temperature detecting device is a temperature sensor.
9. the vacuum thermal aging apparatus for sealants according to any one of claims 1 to 5, wherein the aging box is a cylindrical box and the aging chamber is a cylindrical chamber.
10. the vacuum thermal aging apparatus for sealants according to any one of claims 1 to 5, wherein the box door is rotatably connected to the aging box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822275644.8U CN209745850U (en) | 2018-12-29 | 2018-12-29 | Vacuum thermal aging device for sealant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822275644.8U CN209745850U (en) | 2018-12-29 | 2018-12-29 | Vacuum thermal aging device for sealant |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112255263A (en) * | 2020-12-22 | 2021-01-22 | 南京仪汇仪器设备有限公司 | Sealant high-temperature-resistant testing device |
| CN117092841A (en) * | 2023-08-22 | 2023-11-21 | 深圳市中优图科技有限公司 | Hot air internal circulation mechanism for ageing equipment and LCD ageing equipment |
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2018
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112255263A (en) * | 2020-12-22 | 2021-01-22 | 南京仪汇仪器设备有限公司 | Sealant high-temperature-resistant testing device |
| CN117092841A (en) * | 2023-08-22 | 2023-11-21 | 深圳市中优图科技有限公司 | Hot air internal circulation mechanism for ageing equipment and LCD ageing equipment |
| CN117092841B (en) * | 2023-08-22 | 2024-05-17 | 深圳市中优图科技有限公司 | Hot air internal circulation mechanism for ageing equipment and LCD ageing equipment |
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