CN108181198B - Atomization testing device and method - Google Patents
Atomization testing device and method Download PDFInfo
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- CN108181198B CN108181198B CN201810066812.4A CN201810066812A CN108181198B CN 108181198 B CN108181198 B CN 108181198B CN 201810066812 A CN201810066812 A CN 201810066812A CN 108181198 B CN108181198 B CN 108181198B
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- filter screen
- atomizing cup
- cup
- sample
- aluminum foil
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- 238000000889 atomisation Methods 0.000 title claims abstract description 46
- 238000012360 testing method Methods 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 title claims description 13
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 43
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 43
- 239000011888 foil Substances 0.000 claims abstract description 43
- 238000010438 heat treatment Methods 0.000 claims description 18
- 238000007789 sealing Methods 0.000 claims description 16
- 239000011521 glass Substances 0.000 claims description 13
- 238000001035 drying Methods 0.000 claims description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- 239000000741 silica gel Substances 0.000 claims description 6
- 229910002027 silica gel Inorganic materials 0.000 claims description 6
- 238000005303 weighing Methods 0.000 claims description 6
- 239000002274 desiccant Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 238000010998 test method Methods 0.000 claims description 3
- 239000000443 aerosol Substances 0.000 claims 4
- 101100327917 Caenorhabditis elegans chup-1 gene Proteins 0.000 description 17
- 239000004744 fabric Substances 0.000 description 3
- 239000006260 foam Substances 0.000 description 3
- 239000002861 polymer material Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 208000034699 Vitreous floaters Diseases 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000005357 flat glass Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N5/00—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid
- G01N5/02—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid by absorbing or adsorbing components of a material and determining change of weight of the adsorbent, e.g. determining moisture content
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The application provides an atomization testing device, which comprises: the atomizing cup is a cylindrical upper open container, and the bottom of the atomizing cup is used for placing a sample to be tested; the sample pressing ring is placed at the bottom of the atomizing cup and is used for fixing the sample to be tested; the first filter screen is placed on the sample pressing ring and is contacted with the sample pressing ring; the second filter screen is arranged above the first filter screen and is a certain distance from the first filter screen; the aluminum foil is arranged at the cup opening of the atomizing cup and covers the cup opening of the atomizing cup, and the light surface of the aluminum foil faces to the bottom of the atomizing cup; the mesh size of the first screen is greater than the mesh size of the second screen. By utilizing the embodiments of the application, the accuracy of the atomization test result can be improved.
Description
Technical Field
The application relates to the technical field of automobile detection, in particular to an atomization testing device and method.
Background
The automobile interior trim part uses a plurality of high polymer materials, the high polymer materials are easily degraded into small molecules when heated, and fog is formed in the automobile window, and the process is called atomization. Atomization can reduce the visibility of the window glass and, at the same time, can produce substances harmful to the human body during atomization. Therefore, in the automobile inspection, the atomization test is required to be performed on the polymer material in the interior trim part.
When some light foam fabric samples are subjected to atomization testing, the light samples are easy to float due to convection of cold and hot air in the heating process. In addition, in the heating process, the light foam fabric can generate flocs which can float, and the flocs which float are easy to adhere to the aluminum foil, so that a large error exists in a final atomization test result, and the accuracy of the atomization test result is reduced.
The prior art has at least the following problems: during the heating process, the light sample is easy to float due to the convection of cold and hot air. In addition, in the heating process, the light foam fabric can generate flocs which can float, the flocs float easily adhere to filtering, and a large error exists in a final atomization test result, so that the accuracy of the atomization test result is reduced.
Disclosure of Invention
The embodiment of the application aims to provide an atomization testing device and an atomization testing method, which are used for preventing samples from floating in the heating process and preventing floaters from adhering to aluminum foils, so that the accuracy of atomization testing results is improved.
The embodiment of the application provides an atomization testing device and an atomization testing method, which are realized as follows:
An atomization testing apparatus, the apparatus comprising:
the atomizing cup is a cylindrical upper open container, and the bottom of the atomizing cup is used for placing a sample to be tested;
the sample pressing ring is placed at the bottom of the atomizing cup and is used for fixing the sample to be tested;
the first filter screen is placed on the sample pressing ring and is contacted with the sample pressing ring;
The second filter screen is arranged above the first filter screen and is a certain distance from the first filter screen;
the aluminum foil is arranged at the cup opening of the atomizing cup and covers the cup opening of the atomizing cup, and the light surface of the aluminum foil faces to the bottom of the atomizing cup;
The mesh size of the first screen is greater than the mesh size of the second screen.
In this example, the number of meshes (empty holes) of the first filter 3 is 100 mesh, and the number of meshes (empty holes) of the second filter 4 is 500 mesh.
In a preferred embodiment, the device further comprises:
the sealing ring is arranged at the cup opening of the atomizing cup;
A glass sheet pressed on the matte surface of the aluminum foil;
a condenser, a condensing portion of which is placed against the glass sheet;
and the oil bath heater is used for heating the atomizing cup and the sample in the atomizing cup.
In a preferred embodiment, the sealing ring comprises a built-in rubber ring and a metal ring sleeved on the periphery of the rubber ring.
In a preferred embodiment, the outer diameter of the sample pressing ring is smaller than the inner diameter of the atomizing cup.
In a preferred embodiment, the diameter of the first screen matches the inside diameter of the atomizing cup.
In a preferred embodiment, the diameter of the second screen matches the inside diameter of the atomizing cup.
In a preferred embodiment, the second filter screen is disposed above the first filter screen through a supporting mechanism, and a distance between the second filter screen and the first filter screen is greater than zero.
In a preferred embodiment, the diameter of the sealing ring is matched with the diameter of the cup opening of the atomizing cup, and the diameter of the glass sheet is larger than the inner diameter of the cup opening of the atomizing cup.
A method of testing for atomization using the apparatus of the above embodiments, the method comprising:
horizontally placing a sample to be tested at the bottom of an atomizing cup;
pressing a sample pressing ring on the upper surface of the sample to be tested;
Placing a first filter screen on a sample pressing ring, and arranging a second filter screen above the first filter screen to keep a certain distance between the first filter screen and the second filter screen;
After drying an aluminum foil by using a dryer filled with silica gel, weighing the aluminum foil to obtain a first quality;
Arranging a sealing ring on the cup opening of the atomizing cup, placing an aluminum foil on the sealing ring to cover the cup opening of the atomizing cup, and pressing the aluminum foil by using a glass sheet to enable the light surface of the aluminum foil to face the inside of the atomizing cup;
heating the atomizing cup by using an oil bath heater, and condensing the aluminum foil by using a condenser, wherein the heating and the condensing are carried out for a preset time at the same time;
drying the aluminum foil by using a dryer filled with silica gel drying agent, and weighing the aluminum foil again to obtain a second quality;
and obtaining an atomization test result of the sample to be tested according to the difference value between the second mass and the first mass.
By utilizing the atomization testing device provided by the embodiment of the application, the sample to be tested can be fixed at the bottom of the atomization cup through the sample pressing ring, so that the sample can be effectively prevented from floating. The first filter screen can filter out floccules with larger size, and because the size of the mesh holes of the first filter screen is larger, the floccules with larger size are blocked and the meshes are not blocked, so that the atomized matters can smoothly pass through the first filter screen. Smaller size flocs can be filtered out by the second screen, and the second screen is not blocked because larger size flocs are blocked by the first screen, so that the atomized substances can smoothly pass through the second screen. Through the first filter screen and the second filter screen, floccules can be basically prevented from floating and being stuck to the aluminum foil, and the accuracy of atomization test results can be effectively improved. By using the atomization test method provided by the embodiment of the application, the accuracy of the sample atomization test result can be improved, and the error can be effectively reduced.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present application, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic cross-sectional view of an atomization testing apparatus according to an embodiment of the application;
fig. 2 is a flow chart of an atomization testing method according to an embodiment of the application.
Detailed Description
The embodiment of the application provides an atomization testing device and method.
In order to make the technical solution of the present application better understood by those skilled in the art, the technical solution of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, shall fall within the scope of the application.
FIG. 1 is a schematic cross-sectional view of an embodiment of an atomization testing apparatus. Although the application provides a method operation or apparatus structure as shown in the following examples or figures, more or fewer operation steps or module units may be included in the method or apparatus based on routine or non-inventive labor. In the steps or the structures of the apparatuses in which there is no necessary cause and effect logically, the execution order of the steps or the structure of the modules is not limited to the execution order or the structure of the modules shown in the embodiments or the drawings of the present application.
Specifically, as shown in fig. 1, an embodiment of an atomization testing apparatus provided in the present application may include:
The atomizing cup 1 is a cylindrical container with an upper opening, and the bottom of the atomizing cup 1 is used for placing a sample to be tested;
The sample pressing ring 2 is placed at the bottom of the atomizing cup 1 and is used for fixing the sample to be tested;
the first filter screen 3 is placed on the sample pressing ring 2 and is contacted with the sample pressing ring 2;
the second filter screen 4 is arranged above the first filter screen 3 and is a certain distance from the first filter screen 3;
the aluminum foil 5 is arranged at the cup opening of the atomizing cup 1 and covers the cup opening of the atomizing cup 1, and the light surface of the aluminum foil 5 faces to the bottom of the atomizing cup 2;
The mesh size of the first screen 3 is larger than the mesh size of the second screen 4.
In this example, the apparatus further includes:
The sealing ring 6 is arranged at the cup opening of the atomizing cup;
a glass sheet 7 pressed on the matte surface of the aluminum foil;
A condenser 8, the condensation portion of which rests against the glass sheet;
And the oil bath heater 9 is used for heating the atomizing cup and the sample in the atomizing cup.
In this example, as shown in fig. 1, the sample pressing ring 2, the first filter screen 3, the second filter screen 4, and the aluminum foil 5 are all circular, and the thickness and diameter of the sample pressing ring 2, the first filter screen 3, the second filter screen 4, the aluminum foil 5, and the glass sheet 7 shown in fig. 1 are all exemplary, and the specific thickness and diameter are not limited in the present application.
In this example, the sealing ring 6 includes a built-in rubber ring and a metal ring sleeved on the periphery of the rubber ring.
In this example, the outer diameter of the sample pressing ring 2 is smaller than the inner diameter of the atomizing cup 1. Specifically, the outer diameter of the sample pressing ring 2 is not limited by the present application, as long as the sample pressing ring can be horizontally placed at the bottom of the atomizing cup 1 and can effectively fix the sample, and preferably, the outer diameter of the sample pressing ring 2 is exactly equal to the inner diameter of the atomizing cup 1.
In this case, the diameter of the first filter screen 3 matches the inner diameter of the atomizing cup 1. In this case, the diameter of the first filter screen 3 may be exactly equal to the inner diameter of the atomizing cup 1. Of course, in other embodiments of the application, the diameter of the first screen 3 may be slightly smaller than the inner diameter of the atomizing cup 1, but should be greater than or equal to the inner diameter of the sample pressing ring 2.
In this case, the diameter of the second filter screen 4 matches the inner diameter of the atomizing cup 1. In this case, the diameter of the second filter screen 4 may be exactly equal to the inner diameter of the atomizing cup 1. Of course, in other embodiments of the application, the diameter of the second screen 4 may be slightly smaller than the inner diameter of the atomizing cup 1.
In this example, the second filter screen 4 is disposed above the first filter screen 3, and a distance between the second filter screen 4 and the first filter screen 3 is greater than zero. Specifically, the distance between the second filter screen 4 and the first filter screen 3 is not limited, so long as the first filter screen 3 and the second filter screen 4 are both in the atomizing cup 1.
In this example, the diameter of the sealing ring 6 is matched with the diameter of the cup mouth of the atomizing cup 1, and the diameter of the glass sheet 7 is larger than the inner diameter of the cup mouth of the atomizing cup 1. In this case, the inner diameter of the sealing ring 6 may be equal to the inner diameter of the cup opening or equal to the outer diameter of the cup opening.
By using the embodiment of the atomization testing device provided by the embodiment, the sample to be tested can be fixed at the bottom of the atomization cup through the sample pressing ring, so that the sample can be effectively prevented from floating. The first filter screen can filter out floccules with larger size, and because the size of the mesh holes of the first filter screen is larger, the floccules with larger size are blocked and the meshes are not blocked, so that the atomized matters can smoothly pass through the first filter screen. Smaller size flocs can be filtered out by the second screen, and the second screen is not blocked because larger size flocs are blocked by the first screen, so that the atomized substances can smoothly pass through the second screen. Through the first filter screen and the second filter screen, floccules can be basically prevented from floating and being stuck to the aluminum foil, and the accuracy of atomization test results can be effectively improved.
Based on the device described in the above embodiment, the present application further provides an atomization testing method using the device, and fig. 2 is a schematic flow chart of a method of the atomization testing method according to an embodiment of the present application. Specifically, as illustrated in fig. 2, the method may include:
S1: and (3) horizontally placing the sample to be tested at the bottom of the atomizing cup.
S2: and pressing the sample pressing ring on the upper surface of the sample to be tested.
S3: the first filter screen is placed on the sample pressing ring, and the second filter screen is arranged above the first filter screen, so that the first filter screen and the second filter screen are kept at a certain distance.
Wherein, the mesh size of the first filter screen is greater than the mesh size of the second filter screen.
S4: and (3) drying the aluminum foil by using a dryer filled with silica gel drying agent, and weighing the aluminum foil to obtain a first quality.
S5: the atomizing cup rim is provided with a sealing ring, an aluminum foil is placed on the sealing ring to cover the atomizing cup rim, and the aluminum foil is pressed by a glass sheet, so that the light surface of the aluminum foil faces the inside of the atomizing cup.
S6: and heating the atomizing cup by using an oil bath heater, condensing the aluminum foil by using a condenser, and heating and condensing for a preset time at the same time.
In this case, the heating temperature may be 100 ℃ or higher, the condensing temperature may be 21 ℃ or lower, and the preset time may be 16 hours or higher. Of course, the present application is not limited to the specific one, and the practitioner may set the preset time and the temperatures of the heating and the condensing with the full standard of being able to atomize the sample.
S7: and (3) drying the aluminum foil by using a dryer filled with silica gel, and weighing the aluminum foil again to obtain a second quality.
The drying time of the aluminum foil may be 4 hours or more, and in particular, the present application is not limited thereto, and the operator may set the drying time based on the fact that the aluminum foil is sufficiently dried.
S8: and obtaining an atomization test result of the sample to be tested according to the difference value between the second mass and the first mass.
Wherein the mass of the liquid resulting from the atomization is obtained by subtracting the second mass from the first mass. The quality of the atomized liquid can be used as the atomization test result.
By using the implementation mode of the method provided by the embodiment, the accuracy of the sample atomization test result can be improved, and the error is effectively reduced.
Various embodiments in this specification are described in a progressive manner, and identical or similar parts are all provided for each embodiment, each embodiment focusing on differences from other embodiments.
Although the present application has been described by way of examples, one of ordinary skill in the art appreciates that there are many variations and modifications that do not depart from the spirit of the application, and it is intended that the appended claims encompass such variations and modifications as fall within the spirit of the application.
Claims (8)
1. An atomization testing apparatus, the apparatus comprising:
the atomizing cup is a cylindrical upper open container, and the bottom of the atomizing cup is used for placing a sample to be tested;
the sample pressing ring is placed at the bottom of the atomizing cup and is used for fixing the sample to be tested;
the first filter screen is placed on the sample pressing ring and is contacted with the sample pressing ring;
The second filter screen is arranged above the first filter screen and is a certain distance from the first filter screen;
the aluminum foil is arranged at the cup opening of the atomizing cup and covers the cup opening of the atomizing cup, and the light surface of the aluminum foil faces to the bottom of the atomizing cup;
The sealing ring is arranged at the cup opening of the atomizing cup and comprises a built-in rubber ring and a metal ring sleeved on the periphery of the rubber ring, and the inner diameter of the sealing ring is equal to the inner diameter of the cup opening;
A glass sheet pressed on the matte surface of the aluminum foil;
a condenser, a condensing portion of which is placed against the glass sheet;
the oil bath heater is used for heating the atomizing cup and the sample in the atomizing cup;
The mesh size of the first filter screen is larger than that of the second filter screen, wherein the mesh number of the first filter screen is 100 meshes, and the mesh number of the second filter screen is 500 meshes;
the heating temperature of the oil bath heater is more than 100 ℃, the temperature of the condenser is less than 21 ℃, and the heating by the oil bath heater and the condensing by the condenser are simultaneously carried out for more than 16 hours.
2. An atomization testing arrangement as claimed in claim 1, wherein the outer diameter of the clamp ring is less than the inner diameter of the atomizing cup.
3. An aerosol test device as set forth in claim 1, wherein said first screen has a diameter matching an inner diameter of said aerosol cup.
4. An aerosol test device as set forth in claim 1, wherein said second screen has a diameter matching an inner diameter of said aerosol cup.
5. The atomization testing apparatus of claim 1, wherein the second screen is disposed above the first screen, and wherein a distance between the second screen and the first screen is greater than zero.
6. An atomization testing apparatus as defined in claim 1, wherein the diameter of the sealing ring matches the diameter of the rim of the atomizing cup, and the diameter of the glass sheet is greater than the inner diameter of the rim of the atomizing cup.
7. A method of testing for fogging using a device according to any one of claims 1 to 6, characterised in that said method comprises:
horizontally placing a sample to be tested at the bottom of an atomizing cup;
pressing a sample pressing ring on the upper surface of the sample to be tested;
Placing a first filter screen on a sample pressing ring, and arranging a second filter screen above the first filter screen through a supporting mechanism so that a certain distance is kept between the first filter screen and the second filter screen;
After drying an aluminum foil by using a dryer filled with silica gel, weighing the aluminum foil to obtain a first quality;
Arranging a sealing ring on the cup opening of the atomizing cup, placing an aluminum foil on the sealing ring to cover the cup opening of the atomizing cup, and pressing the aluminum foil by using a glass sheet to enable the light surface of the aluminum foil to face the inside of the atomizing cup;
heating the atomizing cup by using an oil bath heater, and condensing the aluminum foil by using a condenser, wherein the heating and the condensing are carried out for a preset time at the same time;
drying the aluminum foil by using a dryer filled with silica gel drying agent, and weighing the aluminum foil again to obtain a second quality;
and obtaining an atomization test result of the sample to be tested according to the difference value between the second mass and the first mass.
8. The method of claim 7, wherein the mesh size of the first screen is greater than the mesh size of the second screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810066812.4A CN108181198B (en) | 2018-01-24 | 2018-01-24 | Atomization testing device and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810066812.4A CN108181198B (en) | 2018-01-24 | 2018-01-24 | Atomization testing device and method |
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| CN108181198A CN108181198A (en) | 2018-06-19 |
| CN108181198B true CN108181198B (en) | 2024-05-31 |
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Families Citing this family (1)
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| CN109239000A (en) * | 2018-08-22 | 2019-01-18 | 深圳信测标准技术服务股份有限公司 | Condensed components qualitative, quantitative test method in a kind of automotive interior material |
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| CN108181198A (en) | 2018-06-19 |
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