CN106706463A - Method for detecting dissolving capacity of cleaning solvent for automobile paint - Google Patents
Method for detecting dissolving capacity of cleaning solvent for automobile paint Download PDFInfo
- Publication number
- CN106706463A CN106706463A CN201510407535.5A CN201510407535A CN106706463A CN 106706463 A CN106706463 A CN 106706463A CN 201510407535 A CN201510407535 A CN 201510407535A CN 106706463 A CN106706463 A CN 106706463A
- Authority
- CN
- China
- Prior art keywords
- cleaning solvent
- coating
- measured
- model
- dissolving power
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Detergent Compositions (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention relates to the field of automobile paint production, and in particular relates to a method for detecting dissolving capacity of a cleaning solvent for automobile paint and application thereof. The method comprises the following steps: 1) measuring the weight of a sample plate, then soaking the sample plate into to-be-measured paint, taking the sample plate out for standing, and recording the weight of the sample plate; 2) soaking the sample plate obtained by the step 1 into a to-be-measured cleaning solvent, taking the sample plate out for standing, and recording the weight of the sample plate; and 3) according to the difference between the amount of the paint attached to the surface of the sample plate obtained by the step 1 and the amount of the paint attached to the surface of the sample plate obtained by the step 2, judging the dissolving capacity of the to-be-measured cleaning solvent. The dissolving capacity of the to-be-measured cleaning solvent can be reflected accurately in such a way that the paint is attached to the sample plate, the sample plate which the paint is attached to is soaked into the cleaning solvent for measuring.
Description
Technical field
The present invention relates to automobile coating production field, more particularly to a kind of automobile coating cleaning solvent dissolving power detection method and application thereof.
Background technology
By inspection information, the strong and weak method of judgement dissolving power commonly used in the prior art mainly has following several：
(1) can typically be determined by observing the formation speed of certain concentration solution or the viscosity of observation certain concentration solution；Dissolving power exceedes by force, and dissolution velocity is faster, and the viscosity of solution is lower；
(2) can be stronger using the method for the dilution ratio of test solvent, dissolving power, solvent can tolerate the addition of non-solvent the more；
(3) can also be judged using the ability of stability or solution the adaptive temperature change for investigating solution, dissolving power is stronger, then have insoluble matter to separate out or be layered in solution storage, and solution is also smaller by the harmful effect that temperature change is produced；
(4) judging the solvability of solvent can also use the concept of solubility parameter；Solubility parameter often represents it with δ, can be fallen into three classes by the hydrogen bond force size of solvent, i.e. strong hydrogen bonding solubility parameter δ s, middle hydrogen bonding solubility parameter δ m and weak hydrogen bonding solubility parameter δ p；Alcohols solvent belongs to strong hydrogen bonding grade, and the scope of δ is 11~14；Ketone, ethers and lipid solvent belong to middle hydrogen bond grade, and the δ scopes of ketone are 8~10, and the δ scopes of ethers are 9~10, and the δ scopes of lipid are 8~9；Varsol belongs to weak hydrogen bond grade, and the δ scopes of fat hydrocarbon are that the δ scopes of 7~8 arenes are 8~9.
Can be the suitable solvent of base-material Choice of Resin using solubility parameter, that is, see whether the size of the solubility parameter δ of base-material resin and solvent in identical hydrogen bond grade is equal.The middle hydrogen bonding solubility parameter (δ m) of such as epoxy resin is 8~13, can be dissolved in ketone, ethers and lipid solvent, and is not dissolved in hydro carbons and alcohols solvent.
But make a general survey of prior art, do not detect the solvent detection method of automobile coating cleaning solvent still at present, and automobile coating cleaning solvent to be all mixed solvent configuration form, so above method cannot be used for judging the dissolving power of automobile coating cleaning solvent.
The content of the invention
The shortcoming of prior art in view of the above, it is an object of the invention to provide a kind of automobile coating cleaning solvent dissolving power detection method and application thereof, for solving the problems of the prior art.
In order to achieve the above objects and other related objects, first aspect present invention provides a kind of automobile coating cleaning solvent dissolving power detection method, comprises the following steps：
1) weight of sample plate, then immerses in coating to be measured model, is stood after taking-up, and records the weight of gained model；
2) step 1 gained model is immersed in cleaning solvent to be measured, is stood after taking-up, finally the weight of record gained model；
3) difference of the coating content that the coating content and step 2 gained specimen surface for being adhered to according to step 1 gained specimen surface adhere to, judges the solvent power of cleaning solvent to be measured.
Specifically, when the percentage of the amount of the amount relative to the coating that step 1 gained specimen surface adheres to of the coating of step 2 gained specimen surface attachment is lower, then cleaning solvent to be measured is stronger relative to the dissolving power of the coating to be measured；When the percentage of the amount of the amount relative to the coating that step 1 gained specimen surface adheres to of the coating of step 2 gained specimen surface attachment is higher, then cleaning solvent to be measured is weaker relative to the dissolving power of the coating to be measured.
Preferably, the model species is electrophoresis plate.
It is furthermore preferred that the model species is selected from electrophoresis steel plate.
Preferably, in the step 1, model immerses in coating to be measured vertically.
Preferably, in the step 1, the depth that model immerses coating to be measured is 49-51mm.
Preferably, the coating is automobile coating.
Preferably, in the step 1, coating to be measured is working viscosity.
Preferably, in the step 1, the time that model is immersed in coating to be measured is 14-16 seconds, and 585-615 seconds is stood after taking-up.
Preferably, in the step 1, during standing, specimen surface keeps 43-47 ° of angle tiltedly to put with horizontal plane.
Preferably, in the step 2, model immerses in cleaning solvent to be measured vertically.
Preferably, in the step 2, the depth that model immerses cleaning solvent to be measured is 54-56mm.
It is furthermore preferred that model immerses the depth of depth >=model immersion coating to be measured of cleaning solvent to be measured.
Preferably, in the step 2, the number of times that the model is immersed in cleaning solvent to be measured is for twice, stood after taking out every time, the time that the model is immersed in cleaning solvent to be measured for the first time is 14-16 seconds, 58-62 seconds is stood after taking-up, the time that the model immerses in cleaning solvent to be measured for the second time is 14-16 seconds, 585-615 seconds is stood after taking-up.
Preferably, in the step 2, during standing, specimen surface keeps 43-47 ° of angle tiltedly to put with horizontal plane.
Preferably, in the step 1, the model weight immersed before coating to be measured obtained by measurement is W0, immerses coating to be measured and the model weight after standing obtained by measurement is W1；In the step 2, the model weight after immersion cleaning solvent to be measured and standing obtained by measurement is W2, and cleaning solvent dissolving power is calculated according to computing formula dissolving power=[1- (W2-W0)/(W1-W0)] * 100%.
Preferably, the temperature of detection environment is room temperature, and more preferably 24-26 DEG C, the humidity for detecting environment is 74-76%.
Second aspect present invention provides purposes of the automobile coating cleaning solvent dissolving power detection method in automobile coating dissolving power detection field.
By automobile coating cleaning solvent dissolving power detection method provided by the present invention, cleaning solvent-dissolving power detection method can be set during automobile coating coating or automobile coating cleaning solvent are designed and developed, tightened up science contrast coating controls product quality to close relative to the dissolving power situation of cleaning solvent.
Brief description of the drawings
Fig. 1 is shown as the model schematic diagram used in the embodiment of the present invention.
Electrophoresis plate stands schematic diagram during Fig. 2 is shown as the embodiment of the present invention.
Specific embodiment
Because automobile coating cleaning solvent is all that mixed solvent configuration is formed, and the not simple solvent course of dissolution of cleaning process, so related soluble power detection method of the prior art can not accurately judge the dissolving power of automobile coating cleaning solvent.And inventor has found, coating is adhered to by using model, then the mode that the model immersion cleaning solvent of coating is measured will be attached with, the dissolving power of cleaning solvent can be accurately reflected out.
The present invention provides a kind of coating cleaning solvent dissolving power detection method, comprises the following steps：
1) weight of sample plate, then immerses in coating to be measured model, is stood after taking-up, and records the weight of gained model；
In automobile coating cleaning solvent dissolving power detection method provided by the present invention, species and size for model be not specifically limited, as long as not producing limitation to goal of the invention of the invention, preferred model species is electrophoresis plate, more preferably electric electrophoresis steel plate；Preferred size of sample is * long * thickness=150 ± 1mm*70 ± 1mm*0.8 ± 0.1mm wide.
The model is immersed when in coating to be measured, and to immerse vertically, i.e., the side long of model is located at both sides to preferred mode, and broadside is located at top and bottom, and model is immersed in coating to be measured perpendicular to the mode of horizontal plane in the side long and surface of model vertically.The depth that model immerses coating to be measured is preferably 49-51mm, and the length of coating to be measured is immersed on the side long that the depth refers specifically to model.
The coating to be measured is preferably automobile coating, and preferably working viscosity, those skilled in the art can determine its working viscosity according to the specific species of coating, in a preferred embodiment, the species of coating to be measured is that Langfang ippon R-20001F7 is commercially available, and working viscosity is 50~60 seconds/T4 glasss/20 DEG C ± 1 DEG C.
The time that the model is immersed in coating to be measured is preferably 14-16 seconds, and 585-615 seconds is stood after taking-up, and during standing, specimen surface preferably keeps 43-47 ° of angle tiltedly to put with horizontal plane, coating is avoided effect of surface tension with model room, it is to avoid to form webbing.
2) step 1 gained model is repeatedly immersed in cleaning solvent to be measured, is stood after taking out every time, finally the weight of record gained model；
The model is immersed when in cleaning solvent to be measured, and to immerse vertically, i.e., the side long of model is located at both sides to preferred mode, and broadside is located at top and bottom, and model is immersed in cleaning solvent perpendicular to the mode of horizontal plane in the side long and surface of model vertically.The depth that model immerses cleaning solvent to be measured is preferably 54-56mm, and the depth refers specifically to the length of the side long immersion cleaning solvent to be measured of model.It is furthermore preferred that model immerses the depth of depth >=model immersion coating to be measured of cleaning solvent to be measured.
The model preferably total immersion enters in cleaning solvent to be measured twice, the preferably 14-16 seconds time that the model is immersed in cleaning solvent to be measured for the first time, 58-62 seconds after taking-up, the preferably 14-16 seconds time that the model immerses in cleaning solvent to be measured for the second time, 585-615 seconds is stood after taking-up；During standing, specimen surface preferably keeps 43-47 ° of angle tiltedly to put with horizontal plane, coating is avoided effect of surface tension with model room, it is to avoid to form webbing.
3) difference of the coating content that the coating content and step 2 gained specimen surface for being adhered to according to step 1 gained specimen surface adhere to, judges the solvent power of cleaning solvent to be measured.
Specifically, when the percentage of the amount of the amount relative to the coating that step 1 gained specimen surface adheres to of the coating of step 2 gained specimen surface attachment is lower, then cleaning solvent to be measured is stronger relative to the dissolving power of the coating to be measured；When the percentage of the amount of the amount relative to the coating that step 1 gained specimen surface adheres to of the coating of step 2 gained specimen surface attachment is higher, then cleaning solvent to be measured is weaker relative to the dissolving power of the coating to be measured.
In the step 1, the model weight immersed before coating to be measured obtained by measurement is W0, immerses coating to be measured and the model weight after standing obtained by measurement is W1；In the step 2, immerse cleaning solvent to be measured and stand after measurement obtained by model weight be W2, in a preferred embodiment, cleaning solvent dissolving force data is calculated according to computing formula dissolving power=[1- (W2-W0)/(W1-W0)] * 100%.
In automobile coating cleaning solvent dissolving power detection method provided by the present invention, it is not specifically limited for detection environment, as long as not producing limitation to goal of the invention of the invention, the temperature of preferred detection environment is room temperature, more preferably 24-26 DEG C, the humidity of preferred detection environment is 74-76%.
The present invention further provides the automobile coating cleaning solvent dissolving power detection method automobile coating dissolving power detection field purposes.
Automobile coating cleaning solvent dissolving power detection method provided by the present invention, more scientific can contrast dissolving power situation of the automobile coating cleaning solvent relative to coating, it is that a kind of step is simple, with low cost, the accurate detection method of measurement result, the purpose of strict control product quality can be reached.
Embodiments of the present invention are illustrated below by way of specific instantiation, the content that those skilled in the art can be as disclosed by this specification understands other advantages of the invention and effect easily.The present invention can also be embodied or practiced by way of a different and different embodiment, and without departing from the spirit of the present invention the various details in this specification can also carry out various modifications or alterations based on different viewpoints and application.
It should be clear that not specific dated process equipment or device use conventional equipment or device in the art in the following example.
In addition, it is to be understood that one or more method and steps mentioned in the present invention do not repel before and after the combination step and can also there is other method step or other method step can also be inserted between the step of these are specifically mentioned, unless otherwise indicated；It will also be understood that, combination annexation between one or more the equipment/devices mentioned in the present invention is not repelled can also be had other equipment/device before and after the unit equipment/device or can also insert other equipment/device between these two equipment/devices for specifically mentioning, unless otherwise indicated.And, unless otherwise indicated, the numbering of various method steps is only the convenient tool for differentiating various method steps, rather than to limit the ordering of various method steps or limiting enforceable scope of the invention, its relativeness is altered or modified, in the case of without essence change technology contents, when being also considered as enforceable category of the invention.
Embodiment 1
The solvent to be measured used in embodiment is aqueous colour changing solvent (stoste) 1D6, and its Ju Ti Pei Fang is as shown in table 1：
Table 1 (formula meter)
By setting laboratory temperature 25 DEG C ± 1；Humidity 75% ± 1；Wind speed≤0.3m/s；Prepare 0.0001 gram of electronic balance precision, 400 milliliters of beaker, support, dovetail clip, stopwatch, steel plate electrophoresis plate (* * thickness=150mm*70mm*0.8mm wide long).Electrophoresis plate is first drawn into AB lines as shown in Figure 1, the electrophoresis plate that will finish AB lines is placed in precision electronic balance, pending data display stabilization records model weight, is designated as W0.Electrophoresis plate is immersed coating (ippon R-20001F7 is commercially available in Langfang) to be measured vertically to 15 seconds in B lines；Take out, place 10Min, [it is required that 45 ° of model tiltedly puts (such as Fig. 2), coating is avoided effect of surface tension with model room, it is to avoid to form webbing].Band paint electrophoresis plate after placement is placed on electronic balance support (notice that coating should not be encountered on support, influence measurement result), pending data display stabilization, the gross weight of record coating and model is designated as W1.The electrophoresis plate of band paint is immersed in solvent to be measured to A lines 15 seconds vertically；Take out, place 1 minute；Immerse vertically again to A lines 15 seconds in solvent to be measured, take out, place 10min.[sheet material 45 ° of model of requirement is taken out every time tiltedly to put, coating is avoided effect of surface tension with model room, it is to avoid to form webbing.The electrophoresis plate that 2 times immerse after cleaning solvent is placed on precision electronic balance support, (noticing that coating should not be encountered on support, influence measurement result) after display data stabilization, records weight, be designated as W2.Dissolving force data of the cleaning solvent relative to the coating is calculated according to computing formula dissolving power=[1- (W2-W0)/(W1-W0)] * 100%.Related soluble force data according to obtained by automobile coating cleaning solvent dissolving power detection method provided by the present invention is as shown in table 1.
To confirm the accuracy of this detection method, according to actually used process, related cleaning solvent is evaluated the dissolving power of correspondence automobile coating.Referring in particular to use process it is as follows：Plant operations personnel are cleaned using solvent to be measured to the electrophoresis steel plate for being coated with correspondence coating to be measured respectively, according to cleaning performance the cleaning force of coating is carried out 0~5 point of cleaning performance of judgement it is very good=5 points, substantially=4 points are cleaned up, slightly remain=3 points, residual is more=and 2 points, residual is a lot=1 point, and cleaning performance is very poor=and 0 point, the personnel for taking one's test totally 10 people, calculates average mark.Specific evaluation result is as shown in table 2.
Table 2
From table 2, automobile coating cleaning solvent dissolving power detection method provided by the present invention can accurately reflect dissolving power situation of the automobile coating cleaning solvent relative to coating.
In sum, the present invention effectively overcomes various shortcoming of the prior art and has high industrial utilization.
The above-described embodiments merely illustrate the principles and effects of the present invention, not for the limitation present invention.Any person skilled in the art all can carry out modifications and changes under without prejudice to spirit and scope of the invention to above-described embodiment.Therefore, those of ordinary skill in the art is completed under without departing from disclosed spirit and technological thought such as all equivalent modifications or change, should be covered by claim of the invention.
Claims (11)
1. a kind of automobile coating cleaning solvent dissolving power detection method, comprises the following steps：
1) weight of sample plate, then immerses in coating to be measured model, is stood after taking-up, and records the weight of gained model
Amount；
2) step 1 gained model is immersed in cleaning solvent to be measured, is stood after taking-up, and record the weight of gained model；
3) difference of the coating content that the coating content and step 2 gained specimen surface for being adhered to according to step 1 gained specimen surface adhere to,
Judge the solvent power of cleaning solvent to be measured.
2. a kind of automobile coating cleaning solvent dissolving power detection method as claimed in claim 1, it is characterised in that the model species is
Electrophoresis plate.
3. a kind of automobile coating cleaning solvent dissolving power detection method as claimed in claim 1, it is characterised in that the coating is automobile
Paint, coating to be measured is working viscosity.
4. a kind of automobile coating cleaning solvent dissolving power detection method as claimed in claim 1, it is characterised in that the step 1 and step
In rapid 2, model immerses in coating to be measured vertically.
5. a kind of automobile coating cleaning solvent dissolving power detection method as claimed in claim 1, it is characterised in that the step 1 and step
In rapid 2, during standing, specimen surface preferably keeps 43-47 ° of angle tiltedly to put with horizontal plane.
6. a kind of automobile coating cleaning solvent dissolving power detection method as claimed in claim 1, it is characterised in that in the step 1,
The depth that model immerses coating to be measured is 49-51mm, and in the step 2, the depth that model immerses cleaning solvent to be measured is
54-56mm, model immerses the depth of depth >=model immersion coating to be measured of cleaning solvent to be measured.
7. a kind of automobile coating cleaning solvent dissolving power detection method as claimed in claim 1, it is characterised in that in the step 1,
The time that model is immersed in coating to be measured is 14-16 seconds, and 585-615 seconds is stood after taking-up.
8. a kind of automobile coating cleaning solvent dissolving power detection method as claimed in claim 1, it is characterised in that in the step 2,
Twice, to be stood after taking out every time, the model soaks the number of times that the model is immersed in cleaning solvent to be measured for the first time
Enter the time in cleaning solvent to be measured for 14-16 seconds, 58-62 seconds is stood after taking-up, the model immerses to be measured clear for the second time
The time washed in solvent is 14-16 seconds, and 585-615 seconds is stood after taking-up.
9. a kind of automobile coating cleaning solvent dissolving power detection method as claimed in claim 1, it is characterised in that in the step 1,
Model weight before immersion coating to be measured obtained by measurement is W0, the sample after immersion coating to be measured and standing obtained by measurement
Plate weight is W1；In the step 2, the model weight after immersion cleaning solvent to be measured and standing obtained by measurement is W2,
Cleaning solvent dissolving power is calculated according to computing formula dissolving power=[1- (W2-W0)/(W1-W0)] * 100%.
10. a kind of automobile coating cleaning solvent dissolving power detection method as claimed in claim 1, it is characterised in that detection environment
Temperature is room temperature, and humidity is 74-76%.
The 11. automobile coating cleaning solvent dissolving power detection method as described in claim 1-10 any claims dissolves in automobile coating
The purposes of power detection field.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510407535.5A CN106706463A (en) | 2015-07-13 | 2015-07-13 | Method for detecting dissolving capacity of cleaning solvent for automobile paint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510407535.5A CN106706463A (en) | 2015-07-13 | 2015-07-13 | Method for detecting dissolving capacity of cleaning solvent for automobile paint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106706463A true CN106706463A (en) | 2017-05-24 |
Family
ID=58895096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510407535.5A Pending CN106706463A (en) | 2015-07-13 | 2015-07-13 | Method for detecting dissolving capacity of cleaning solvent for automobile paint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106706463A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107330256A (en) * | 2017-06-20 | 2017-11-07 | 巴斯夫上海涂料有限公司 | Characterize the method and its application of solvent power |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102435528B (en) * | 2011-08-18 | 2014-08-27 | 奇瑞汽车股份有限公司 | Detecting method for cleaning capacity of paint solvent |
| CN104089844A (en) * | 2014-07-16 | 2014-10-08 | 安徽鑫科新材料股份有限公司 | Method for measuring content of oil in scrap copper |
-
2015
- 2015-07-13 CN CN201510407535.5A patent/CN106706463A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102435528B (en) * | 2011-08-18 | 2014-08-27 | 奇瑞汽车股份有限公司 | Detecting method for cleaning capacity of paint solvent |
| CN104089844A (en) * | 2014-07-16 | 2014-10-08 | 安徽鑫科新材料股份有限公司 | Method for measuring content of oil in scrap copper |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107330256A (en) * | 2017-06-20 | 2017-11-07 | 巴斯夫上海涂料有限公司 | Characterize the method and its application of solvent power |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105528288B (en) | A kind of method for testing software and device | |
| CN102621040B (en) | Method for testing wettability of electronic-grade glass fiber cloth | |
| CN206656765U (en) | A kind of combination type multifunction water leveling ruler | |
| CN103512821A (en) | Method for testing liquid absorption rate of battery diaphragm | |
| CN205808332U (en) | A kind of blooming piece angularity verifying attachment | |
| CN202719950U (en) | Tool for testing conicity of part | |
| CN106706463A (en) | Method for detecting dissolving capacity of cleaning solvent for automobile paint | |
| CN104697712B (en) | A kind of revolving body workpieces barycenter method of inspection | |
| CN100334418C (en) | Method for measuring roller shaft levelness in roller space position detection | |
| CN104101288A (en) | Device for measuring concrete surface stripping degree | |
| CN110261291A (en) | The corrosion proof method of rapid evaluation metal protective film | |
| Wu et al. | Generalized inference for measuring process yield with the contamination of measurement errors—Quality control for silicon wafer manufacturing processes in the semiconductor industry | |
| CN108982178B (en) | Preparation method of galvanized steel sheet standard sample | |
| CN102519412A (en) | Preparation method of galvanized plate zinc layer quality standard plate | |
| CN206593789U (en) | Ultrasonic wave residual stress test coupling device | |
| CN105403480A (en) | Determination method for center density of continuous casting slab | |
| CN210441843U (en) | Device for measuring thickness of oil film on surface of strip steel on line | |
| CN205300473U (en) | Mar measuring apparatu | |
| CN211825543U (en) | Solid density measuring device | |
| CN106814126A (en) | A kind of method of testing of galvanizing layer weight and wherein trace element distribution | |
| CN107388924A (en) | A kind of taper pin dimension measuring device and measuring method | |
| CN101498672A (en) | Method for detecting surface finish quality of dust-free cloth | |
| CN205317621U (en) | Wetting time surveys device | |
| CN104076130A (en) | Method for quickly detecting content of insoluble water in jet fuel | |
| CN206399767U (en) | Product remnants degreaser detection means |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170524 |