CN109342699A - A kind of condensation water test device and the test method using the condensation water test device - Google Patents
A kind of condensation water test device and the test method using the condensation water test device Download PDFInfo
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- CN109342699A CN109342699A CN201811565888.8A CN201811565888A CN109342699A CN 109342699 A CN109342699 A CN 109342699A CN 201811565888 A CN201811565888 A CN 201811565888A CN 109342699 A CN109342699 A CN 109342699A
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- 238000012360 testing method Methods 0.000 title claims abstract description 88
- 238000009833 condensation Methods 0.000 title claims abstract description 26
- 230000005494 condensation Effects 0.000 title claims abstract description 26
- 238000010998 test method Methods 0.000 title claims abstract description 9
- 239000011521 glass Substances 0.000 claims abstract description 28
- 238000004891 communication Methods 0.000 claims abstract description 4
- 238000007599 discharging Methods 0.000 claims abstract description 4
- 239000008236 heating water Substances 0.000 claims abstract description 4
- 238000004140 cleaning Methods 0.000 claims description 14
- 239000003973 paint Substances 0.000 claims description 10
- 238000010438 heat treatment Methods 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 5
- 238000009413 insulation Methods 0.000 claims description 4
- 239000007769 metal material Substances 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 3
- 229910052755 nonmetal Inorganic materials 0.000 claims 1
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- 238000012545 processing Methods 0.000 description 2
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- 239000005030 aluminium foil Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
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- 239000002537 cosmetic Substances 0.000 description 1
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- 235000013399 edible fruits Nutrition 0.000 description 1
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Classifications
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- 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
- G01N33/26—Oils; Viscous liquids; Paints; Inks
- G01N33/32—Paints; Inks
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
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- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
The present invention relates to a kind of condensation water test device and using the test method of the condensation water test device, experimental rig includes mounting seat, the chamber being set in mounting seat and digital display controller, one front of chamber is equipped with chamber door, dismountable specimen holder is equipped in chamber, top in chamber, which is sticked, electric ehated glass plate, bottom is equipped with the water dish for being filled with water and the heater for heating water dish, the top of water dish is equipped with temperature sensor and Temperature Humidity Sensor with digital display controller communication connection, the lower section of chamber door is equipped with water receiving tank, water receiving tank is connect by U-tube with water dish, the bottom of U-tube is equipped with discharging valve.Compared with prior art, the present invention improves the accuracy of anti-moisture test by using many kinds of measures.
Description
Technical field
The present invention relates to sampling test technical fields, more particularly, to a kind of condensation water test device and use the condensed water
The test method of experimental rig.
Background technique
Condensate water test box is widely used in the moisture-proof measurement to paint and varnish, exists for testing coating lacquer template
Under 100% relative humidity and in the case where there is condensed water always on paint film, paint blister degree and outer after paint spraying
The variation of sight.The sample for being coated with paint film is placed in condensate water test box, due to the radiation effects or sample sheet of condensate water test box
The cooling effect of body, the temperature of the specimen surface in chamber are thus empty compared with the saturation temperature lower than surrounding air in chamber
Moisture in gas can be condensed out in specimen surface, to detect to sample.But current condensation water test chamber interior wall
(especially top inner wall) is easy accumulation droplet, and droplet can drip on sample, and sample (part) is caused to destroy
And the worthless situation of experimental result.Moreover, current condensate water test box in order to heat air, is tested with meeting to air
The requirement of temperature is easy to cause specimen surface to be not easy that even condensation can not be formed so generally by the way of circulated air, this
Test requirements document is not met.The above many disadvantages cause the test result accuracy of current condensate water test box not high.
Summary of the invention
It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide a kind of condensation water tests to fill
Set and using the condensation water test device test method.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of condensation water test device, including mounting seat, the chamber being set in mounting seat and digital display controller,
One front of chamber is equipped with chamber door, and dismountable specimen holder is equipped in chamber, and the top in the chamber is sticked
There is electric ehated glass plate, bottom is equipped with the water dish for being filled with water and the heater for heating water dish, the top of water dish
Equipped with the temperature sensor and Temperature Humidity Sensor with digital display controller communication connection, the lower section of chamber door is equipped with water receiving tank, described
Water receiving tank connect with water dish by U-tube, the bottom of U-tube is equipped with discharging valve.
Preferably, the specimen holder includes multiple horizontally arranged nonmetallic columns, the nonmetallic column
Longitudinal cross-section be V-shape.
Preferably, the specimen holder is set to the middle part in chamber.
Preferably, the U-tube is set in mounting seat.
Preferably, the chamber uses non-metallic material, and water dish is glass material, and heater is set to water dish
Lower section, and thermal insulation layer is equipped between heater and the cabinet of chamber.
Preferably, heat reflection metal foil is equipped between the electric ehated glass plate and chamber top.Further increase heat
Radiation efficiency.
Preferably, the water dish takes the bottom space of chamber.
Preferably, the electric ehated glass plate and water dish are horizontally disposed.
The method tested using the condensation water test device, comprising the following steps:
S1: pure water is added in water dish, and is lower than temperature sensor, powers on, setting heating temperature is wanted to test
The chamber temperature asked；
S2: the sample for being coated with paint film is sufficiently cleaned and avoids staiing；
S3: will be placed on specimen holder under the subject face horizontal direction of the sample after cleaning, and between sample and sample and examination
It does not interfere with each other, is tested between tryoff, the chamber temperature and humidity of test requirements document is kept during test；
S4: after the test, taking out sample, after spontaneously drying a period of time at room temperature, with the examination for being not higher than test requirements document
The cleaning circulating water of tryoff temperature, gently cleaning sample surface, then dried up immediately with hair dryer.
Preferably:
The chamber temperature of test requirements document is 40 DEG C, humidity 100%RH；
Test endpoint is that the time for completing test period or sample start the time for occurring corroding, a test period
For 24,48 or 72h.
After taking out sample, the time spontaneously dried at room temperature is 0.5~1h.
Compared with prior art, the invention has the following advantages:
Electric ehated glass plate is arranged by the top in chamber in the present invention, and one can play the work of heat run case
With two by way of heat radiation can be difficult to the problem of condensing in sample surfaces to avoid vapor caused by circulated air, more
It is important that avoiding after vapor condenses at the top of chamber and dripping to by the way that the electric ehated glass plate to be set at the top of chamber
On test specimen.Electric ehated glass plate heats glass by heating wire, and structure is simple, and arrangement is convenient, glass directed downwardly one
Side is shiny surface, further avoids the condensation of vapor, based on the setting of above-mentioned electric ehated glass, without being made at the top of chamber
Skewed equal complicated shapes, reduce the difficulty of chamber processing, achieve many things at one stroke.
It does not invent and water dish is heated by heater, trigger the evaporation of the water in water dish, vapor generates more uniform
Stablize.And entire water dish takes the entire bottom of chamber, and no setting is required, and complicated recycling condenses water-bound, can be effective
It realizes and condenses water reuse in chamber, improve the utilization efficiency of water, simplify structure.And pass through U-tube and water receiving
Disk connection, can monitor the water in water dish, and carry out moisturizing to water dish by drip tray at any time.
The temperature and humid control of the present embodiment are received by digital display controller comes from temperature sensor and humidity sensor
Signal, and then control heater and electric ehated glass plate heating, automatically control chamber in temperature and humidity.
The present invention uses V-shaped specimen holder, can effectively reduce the contact area of sample and specimen holder, and subject face is horizontal
When placing downwards, sample and specimen holder are Multi-contact states, and exposure is close to 100%.
In short, the present invention, by many kinds of measures, synergistic effect improves the accuracy of test.Substantially avoid due to
To the interference of test caused by cooling water.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the forward sight diagrammatic cross-section of chamber of the invention；
Fig. 3 is the side elevational cross-section schematic diagram of chamber of the invention.
In figure, 1 is mounting seat, and 2 bit test casees, 21 be chamber door, and 22 be specimen holder, and 221 be protrusion, and 23 be electric ehated glass
Plate, 24 be water dish, and 25 be heater, and 26 be water receiving tank, and 27 be U-tube, and 28 be thermal insulation layer, and 3 be digital display controller, and 4 be sample
Product.
Specific embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment 1
A kind of condensation water test device, as shown in Figures 1 to 3, including mounting seat 1, the test being set in mounting seat 1
Case 2 and digital display controller 3, a front of chamber 2 are equipped with chamber door 21, dismountable specimen holder 22, examination are equipped in chamber 2
Top in tryoff 2, which is sticked, electric ehated glass plate 23, and bottom is equipped with the water dish 24 for being filled with water and for heating water dish
24 heater 25, the top of water dish 24 are equipped with temperature sensor and temperature and humidity sensing with 3 communication connection of digital display controller
Device, the lower section of chamber door 21 are equipped with water receiving tank 26, and water receiving tank 26 is connect by U-tube 27 with water dish 24, and the bottom of U-tube 27 is set
There is discharging valve.By top in chamber, electric ehated glass plate is set, one can play the role of heat run case, and two
By way of heat radiation the problem of condensing can be difficult in sample surfaces to avoid vapor caused by circulated air, it is often more important that
By the way that the electric ehated glass plate to be set at the top of chamber, avoids after vapor condenses at the top of chamber and drip to test specimen
On.Electric ehated glass plate heats glass by fine heating wire, and structure is simple, and arrangement is convenient, glass side directed downwardly
For shiny surface, the condensation of vapor is further avoided, based on the setting of above-mentioned electric ehated glass, is inclined at the top of chamber without being made into
Ramp-like equal complicated shapes, reduce the difficulty of chamber processing, achieve many things at one stroke.The further preferred electric ehated glass plate 23 of the present embodiment
Heat reflection metal foil (such as aluminium foil etc.) is equipped between 2 top of chamber.Further increase radiation efficiency.
Chamber 2 in the present embodiment uses non-metallic material, such as glass reinforced plastic or engineering plastics (such as PP, PVC, ABS etc.
Associated plastic substrate), prevent the judgement of metal material corrosion impact experimental result.Water dish 24 is glass material, heater 25
It is set to 24 lower section of water dish, and is equipped with thermal insulation layer 28 between heater 25 and the cabinet of chamber 2.It is preferred that water dish 24 takes
The bottom space of chamber 2, and electric ehated glass plate 23 and water dish 24 are horizontally disposed.U-tube 27 is set in mounting seat 1.
As shown in Figure 3.Water dish is heated by heater, triggers the evaporation of the water in water dish, vapor generates more uniform stabilization.
And entire water dish takes the entire bottom of chamber, and no setting is required, and complicated recycling condenses water-bound, can effectively realize
Water reuse is condensed in chamber, is improved the utilization efficiency of water, is simplified structure.And connected by U-tube and drip tray
It connects, the water in water dish can be monitored, and moisturizing is carried out to water dish by drip tray at any time.
In the present embodiment, specimen holder 22 includes that multiple horizontally arranged nonmetallic columns (can be using glass, plastics etc.
Material), the longitudinal cross-section of nonmetallic column is V-shape.Specimen holder 22 passes through the protrusion that is set on 2 inner sidewall of chamber
221 are set up in chamber 2.Using V-shaped specimen holder 22, the contact area of sample 4 Yu specimen holder 22 can be effectively reduced,
When placing under the horizontal direction of subject face, exposure is close to 100%, as shown in Figure 2.Further preferred specimen holder 22 is set in the present embodiment
It is placed in the middle part in chamber 2.
The scope of application of the chamber of the present embodiment:
With reference to ISO6270 (ISO6270-2:2005), the standard of DIN50017.Mainly to paint and varnish ----moisture-proof
Measurement.
Using the test method of above-mentioned condensation water test device, comprising the following steps:
S1: pure water being added in water dish 24, and is lower than temperature sensor, powers on, setting heating temperature to test
It is required that chamber temperature；
S2: the sample 4 for being coated with paint film is sufficiently cleaned and avoids staiing；
S3: sample 4 after cleaning being tested under the horizontal direction of face and is placed on specimen holder 22, and between sample 4 and sample 4
It does not interfere with each other, is tested between chamber 2, the chamber temperature and humidity of test requirements document is kept during test；
S4: after the test, taking out sample 4, after spontaneously drying a period of time at room temperature, with the examination for being not higher than test requirements document
The cleaning circulating water of tryoff temperature, gently 4 surface of cleaning sample, then dried up immediately with hair dryer.
Temperature and humid control during test are received by digital display controller comes from temperature sensor and humidity sensor
The signal of device, and then the heating of heater and electric ehated glass plate is controlled, automatically control the temperature and humidity in chamber.
Specifically:
1, the template of test:
(1) type, quantity, the shape and size of sample, should be depending on the requirement of subject coating or product standard.If
Without standard, can be consulted to decide with the parties concerned.(2) sample must be cleaned sufficiently before testing, cleaning method regard specimen surface situation and
Depending on dirt property.The abrasive material and solvent of meeting etch specimen surface cannot be used.After sample is cleaned, it is necessary to avoid staiing.(3) such as
Fruit sample is cut down from workpiece, and the coating near cutting area cannot be damaged.Unless otherwise specified, it is necessary to suitably
Coating, such as: paint, paraffin or adhesive tape protect cutting area.
2, sample is placed
The angle that sample is placed is important, and the condensed water condensation area of different angle also can be different.Sample is placed on test
In case, level is answered downward in subject face, and vapor is allowed uniformly to condense on subject face, and subject area is made to reach 100%.Sample is not
Cabinet can be contacted, can not be contacted with each other.The distance between sample should not influence condensed water and condense on subject face.On sample
Drop must not be fallen on other samples.If necessary to hang to sample, the material of sample is hung, metal cannot be used, must be used
Staple fibre, cotton fiber or other insulating materials.Drop on bracket must not be fallen on sample.
3, experimental condition:
The chamber temperature of test requirements document is 40 DEG C, humidity 100%RH；General control constant temperature fluctuating temperature ± 0.5 DEG C,
4. temperature-controlled precision≤± 0.1 DEG C, 5. temperature deviations :≤± 2 DEG C.After taking out sample 4, the time spontaneously dried at room temperature is 0.5
~1h.
4, duration is tested:
The time of test, should by subject coating or product standard requirement depending on, if can be assisted through the parties concerned without standard
Quotient determines.Within the defined test period, chamber, which must not open, to be interrupted, and only when needing of short duration observation sample, could be opened
Chamber, a test period are generally 24,48 or 72h.Test to predetermined period can be checked by the period, but examined
During looking into, examination face cannot be destroyed, it the time of open box to check sample, should be as short as possible.If test endpoint depends on starting
The time now corroded, sample need running check.Therefore these samples cannot try together with the sample for having the predetermined test period
It tests.
5, the cleaning of sample after the completion of testing:
After the test, sample is taken out, to reduce falling off for corrosion product, sample before cleaning, it is dry to be placed on Indoor Natural
Dry 0.5~1h is gently cleaned then with the cleaning circulating water for being not higher than 40 DEG C to remove the remaining corrosion residual of specimen surface
Object, then dried up immediately with hair dryer.
6, test result:
In order to meet different test objectives, a variety of evaluation of test result standards can be used, as cosmetic variation, 15 times are put
Big sem observation, mechanical performance etc..The evaluation criterion of usual test result should be proposed by coating cap rock or product standard.To general
Test, conventional record only need to consider following several respects:
(1) appearance after testing；
(2) appearance after corrosion removal product；
(3) corrosion default, such as spot corrosion, the distribution and quantity of crackle, bubble.
(4) start the time for occurring corroding.
7, laboratory report:
(1) test report must write the evaluation criterion of use and obtained test result exactly.When necessary, there should be every sample
Result, the average result of every group of parallel sample or the photo of sample.
(2) test report must include the data of test method, these data can be depending on test objective and its requirement.
Generally comprise following content:
A. it is tested the explanation of coating or product；
B. the shape and size of sample, Area of Sample and surface state；
C. the preparation of sample, including the cleaning before test and to the guard method etc. at sample edge or other privileged sites；
D. the known features of coating and the explanation of surface treatment；
E. sample quantities；
F. the angle position that sample is placed；
G. test temperature；
H. the test period.
The above-mentioned description to embodiment is for ease of ordinary skill in the art to understand and use the invention.It is ripe
The personnel for knowing art technology obviously easily can make various modifications to these embodiments, and general original described herein
It ought to use in other embodiments without having to go through creative labor.Therefore, the present invention is not limited to the above embodiments, this field
Technical staff's announcement according to the present invention, improvement and modification made without departing from the scope of the present invention all should be in guarantors of the invention
Within the scope of shield.
Claims (9)
1. a kind of condensation water test device, including mounting seat (1), the chamber (2) being set on mounting seat (1) and digital display
One front of controller (3), chamber (2) is equipped with chamber door (21), is equipped with dismountable specimen holder (22) in chamber (2),
It is characterized in that, the top in the chamber (2), which is sticked, to be had electric ehated glass plate (23), bottom is equipped with and is filled with water for what is be filled with water
The top of disk (24) and heater (25) for heating water dish (24), water dish (24) is equipped with and digital display controller (3)
The lower section of the temperature sensor and Temperature Humidity Sensor of communication connection, chamber door (21) is equipped with water receiving tank (26), the water receiving tank
(26) it is connect by U-tube (27) with water dish (24), the bottom of U-tube (27) is equipped with discharging valve.
2. a kind of condensation water test device according to claim 1, which is characterized in that the specimen holder (22) includes more
A horizontally arranged nonmetallic column, the longitudinal cross-section of the nonmetallic column are V-shape.
3. a kind of condensation water test device according to claim 1, which is characterized in that the specimen holder (22) is set to
Middle part in chamber (2).
4. a kind of condensation water test device according to claim 1, which is characterized in that the U-tube (27) is set to
In mounting seat (1).
5. a kind of condensation water test device according to claim 1, which is characterized in that the chamber (2) is using non-
Metal material, water dish (24) are glass material, and heater (25) is set to below water dish (24), and heater (25) and examination
Thermal insulation layer (28) are equipped between the cabinet of tryoff (2).
6. a kind of condensation water test device according to claim 5, which is characterized in that the water dish (24) takes examination
The bottom space of tryoff (2).
7. a kind of condensation water test device according to claim 1, which is characterized in that the electric ehated glass plate (23) and
Water dish (24) is horizontally disposed.
8. using the test method of any condensation water test device of claim 1~7, which is characterized in that including following
Step:
S1: pure water is added in water dish (24), and is lower than temperature sensor, powers on, setting heating temperature is wanted to test
The chamber temperature asked；
S2: the sample (4) for being coated with paint film is sufficiently cleaned and avoids staiing；
S3: it will be placed on specimen holder (22) under the subject face horizontal direction of the sample (4) after cleaning, and between sample (4) and sample
It does not interfere with each other, is tested between product (4) and chamber (2), the chamber temperature of test requirements document and wet is kept during test
Degree；
S4: after the test, taking out sample (4), after spontaneously drying a period of time at room temperature, with the test for being not higher than test requirements document
The cleaning circulating water of box temperature degree, gently cleaning sample (4) surface, then dried up immediately with hair dryer.
9. test method according to claim 8, it is characterised in that:
The chamber temperature of test requirements document is 40 DEG C, humidity 100%RH；
Test endpoint is that the time for completing test period or sample (4) start the time for occurring corroding, a test period
For 24,48 or 72h.
After taking out sample (4), the time spontaneously dried at room temperature is 0.5~1h.
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| CN201811565888.8A CN109342699A (en) | 2018-12-20 | 2018-12-20 | A kind of condensation water test device and the test method using the condensation water test device |
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| CN201811565888.8A CN109342699A (en) | 2018-12-20 | 2018-12-20 | A kind of condensation water test device and the test method using the condensation water test device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111426593A (en) * | 2020-04-10 | 2020-07-17 | 黎明职业大学 | High-accuracy finished shoe moisture permeability and moisture absorption performance testing device and testing method |
| CN113092743A (en) * | 2021-04-02 | 2021-07-09 | 中国建材检验认证集团北京天誉有限公司 | Cement product whiskering test equipment and whiskering degree detection method |
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