CN105136604A - Detection method for oil removal rate of degreasant - Google Patents
Detection method for oil removal rate of degreasant Download PDFInfo
- Publication number
- CN105136604A CN105136604A CN201510571369.2A CN201510571369A CN105136604A CN 105136604 A CN105136604 A CN 105136604A CN 201510571369 A CN201510571369 A CN 201510571369A CN 105136604 A CN105136604 A CN 105136604A
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- CN
- China
- Prior art keywords
- base material
- degreasing agent
- removal rate
- oil removal
- weight
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Abstract
The invention provides a detection method for the oil removal rate of a degreasant. The method comprises the following steps: firstly, cleaning and drying a base material, and weighing the weight WO of the base material; secondly, putting the base material into grease, then taking out and drying the base material, and weighing the weight W1 of the base material; thirdly, putting the base material into a degreasant solution with certain temperature, swinging and washing the base material for a certain period of time through a certain frequency and swing, then taking out the base material, rinsing the base material in pure water, drying the base material, and weighing the weight W2 of the base material; fourthly, completely cleaning the base material and drying the base material, and weighing the weight W3 of the base material; fifthly, computing according to a formula [(W1-W2)-(W0-W3)]/(W1-W0)*100 percent, so as to work out the oil removal rate of the degreasant. The method is capable of quantitatively analyzing the oil removal capacity of the degreasant, is small in multiple detection error, and can accurately evaluate the oil removal capacity of the degreasant.
Description
Technical field
The present invention relates to automobile metal substrate surface grease and remove field, particularly a kind of degreasing agent oil removal rate detection method.
Background technology
Metallic substrate surface before painting dressing automobiles is coated with one deck grease, and oil source has sheet material rust preventive oil, punching press drawing wet goods.Painting dressing automobiles comprises a very important operation degreasing, and namely remove the grease on metal base, the degreasing degreasing effect of degreasing agent determines the coating quality of later process.
Because degreasing agent kind is various with formula, different degreasing agent degreasing degreasing rates differs greatly, and when selecting the model of degreasing agent, need evaluate degreasing degreasing rate.
Existing degreasing agent oil removal rate evaluation adopts the moisture film whether continuous print mode on the test plate (panel) surface observed after degreasing agent soaks, and moisture film then judges that this degreasing agent degreasing degreasing rate is qualified continuously, and moisture film is discontinuous, judges that this degreasing agent degreasing degreasing rate is defective.Due to this degreasing agent oil removal rate evaluation method non-quantitative, there is more error, cause the evaluation of degreasing agent oil removal rate not accurate.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of degreasing agent oil removal rate detection method evaluating degreasing agent oil removing ability comparatively accurately.
For solving the problems of the technologies described above, degreasing agent oil removal rate detection method provided by the invention comprises the steps:
(1) by base material cleaning-drying, the weight W of base material is taken
0;
(2) base material is put into grease, then take out drying, take the weight W of base material
1, it will be apparent to those skilled in the art that W
1refer to weight when base material is dried to constant weight, preferably, baking temperature is 38 DEG C-42 DEG C, and drying time is 2h;
(3) degreasing agent solution base material being put into uniform temperature washes certain hour with certain frequency and certain amplitude of oscillation pendulum, then takes out in pure water dry after rinsing, takes the weight W of base material
2, above-mentioned in pure water, rinsing time should not be long, and rinsing time preferably can be 5s, in addition, those skilled in the art can easily expect, when will the oil removing ability of more multiple different degreasing agent time, the concentration of the solution of different degreasing agent is identical, particularly, and OH free in different degreasing agent solution
-concentration identical;
(4) base material is cleaned rear drying completely, take the weight W of base material
3, it will be apparent to those skilled in the art that in this step base material to clean completely and refer to that the grease by substrate surface is removed completely, absolute ethyl alcohol or acetone can be adopted to clean;
(5) according to formula [(W
1-W
2)-(W
0-W
3)]/(W
1-W
0) × 100% calculates degreasing agent oil removal rate.
Degreasing agent oil removal rate detection method provided by the invention can carry out quantitative test to the oil removing ability of degreasing agent, and repeated detection error is little, can evaluate degreasing agent oil removing ability comparatively accurately.
Preferably, described base material is the pure zine plate of 60mm × 50mm × 0.8mm.
Preferably, the grease in described step (2) is prepared by the following method:
By No. 20 machine oil, No. 30 machine oil, vaseline and sheep oil stir and after being heated to 118 DEG C of-122 DEG C of meltings, the magnesium soap added again, barium mahogany sulfonate and calcium grease stir and cool after being heated to 128 DEG C of-132 DEG C of meltings, wherein, described No. 20 machine oil, No. 30 machine oil, vaseline, sheep oil, magnesium soap, the mass ratio of barium mahogany sulfonate and calcium grease is (68-70): (23-25): (59-61): (3.5-4.5): (3.5-4.5): (15-17): (3.5-4.5), grease prepared by this kind of method can simulate the grease in actual production preferably, and grease is even in the surface distributed of base material, not easily pile up.
Preferably, described step (3) is specially:
Degreasing agent solution base material being put into 38 DEG C-42 DEG C washes 3min with the amplitude of oscillation pendulum of the frequency of 45 beats/min-55 beats/min and 3cm, then takes out in pure water dry after rinsing, takes the weight W of base material
2.
Preferably, described base material soaks 3min before putting in degreasing agent solution and washing in degreasing agent solution, and the step of immersion is conducive to the oil removing ability characterizing degreasing agent more really.
Preferably, the baking temperature in described step (3) is 38 DEG C-42 DEG C, and drying time is 2h.
Embodiment
For enabling above-mentioned purpose, the feature and advantage of invention more become apparent, below the specific embodiment of the present invention is described in detail.
Set forth a lot of detail in the following description so that fully understand the present invention, but the present invention can also adopt other to be different from alternate manner described here to implement, those skilled in the art can when without prejudice to doing similar popularization when intension of the present invention, therefore the present invention is by the restriction of following public specific embodiment.
Embodiment 1
(1) by base material cleaning-drying, the weight 17.1361g of base material is taken;
(2) base material is put into grease, then take out drying, take the weight 17.2461g of base material;
(3) degreasing agent solution base material being put into 38 DEG C washes 3min with the amplitude of oscillation pendulum of the frequency of 45 beats/min and 3cm, then to take out in pure water after rinsing dry 2h at 38 DEG C, takes the weight 17.1125g of base material;
(4) base material is cleaned rear drying completely, take the weight 17.1061g of base material;
(5) according to formula [(W
1-W
2)-(W
0-W
3)]/(W
1-W
0it is 94.18% that) × 100% calculates degreasing agent oil removal rate.
Embodiment 2
(1) by base material cleaning-drying, the weight 16.8432g of base material is taken;
(2) base material is put into grease, then take out drying, take the weight 16.9932g of base material;
(3) degreasing agent solution base material being put into 42 DEG C washes 3min with the amplitude of oscillation pendulum of the frequency of 55 beats/min and 3cm, then to take out in pure water after rinsing dry 2h at 42 DEG C, takes the weight 16.8231g of base material;
(4) base material is cleaned rear drying completely, take the weight 16.8132g of base material;
(5) according to formula [(W
1-W
2)-(W
0-W
3)]/(W
1-W
0it is 93.40% that) × 100% calculates degreasing agent oil removal rate.
Embodiment 3
(1) by base material cleaning-drying, the weight 17.8433g of base material is taken;
(2) base material is put into grease, then take out drying, take the weight 17.9832g of base material;
(3) degreasing agent solution base material being put into 40 DEG C washes 3min with the amplitude of oscillation pendulum of the frequency of 50 beats/min and 3cm, then to take out in pure water after rinsing dry 2h at 40 DEG C, takes the weight 17.8256g of base material;
(4) base material is cleaned rear drying completely, take the weight 17.8133g of base material;
(5) according to formula [(W
1-W
2)-(W
0-W
3)]/(W
1-W
0it is 91.21% that) × 100% calculates degreasing agent oil removal rate.
Although the present invention is described in conjunction with above embodiment, but the present invention is not defined to above-described embodiment, and only by the restriction of claims, those of ordinary skill in the art can easily modify to it and change, but do not leave essential idea of the present invention and scope.
Claims (6)
1. a degreasing agent oil removal rate detection method, is characterized in that, comprises the steps:
(1) by base material cleaning-drying, the weight W of base material is taken
0;
(2) base material is put into grease, then take out drying, take the weight W of base material
1;
(3) degreasing agent solution base material being put into uniform temperature washes certain hour with certain frequency and certain amplitude of oscillation pendulum, then takes out in pure water dry after rinsing, takes the weight W of base material
2;
(4) base material is cleaned rear drying completely, take the weight W of base material
3;
(5) according to formula [(W
1-W
2)-(W
0-W
3)]/(W
1-W
0) × 100% calculates degreasing agent oil removal rate.
2. degreasing agent oil removal rate detection method according to claim 1, is characterized in that, described base material is the pure zine plate of 60mm × 50mm × 0.8mm.
3. degreasing agent oil removal rate detection method according to claim 1, is characterized in that, the grease in described step (2) is prepared by the following method:
No. 20 machine oil, No. 30 machine oil, vaseline and sheep oil to be stirred and after being heated to 118 DEG C of-122 DEG C of meltings, the magnesium soap added again, barium mahogany sulfonate and calcium grease stir and cool after being heated to 128 DEG C of-132 DEG C of meltings, wherein, the mass ratio of described No. 20 machine oil, No. 30 machine oil, vaseline, sheep oil, magnesium soap, barium mahogany sulfonate and calcium greases is (68-70): (23-25): (59-61): (3.5-4.5): (3.5-4.5): (15-17): (3.5-4.5).
4. degreasing agent oil removal rate detection method according to claim 1, is characterized in that, described step (3) is specially:
Degreasing agent solution base material being put into 38 DEG C-42 DEG C washes 3min with the amplitude of oscillation pendulum of the frequency of 45 beats/min-55 beats/min and 3cm, then takes out in pure water dry after rinsing, takes the weight W of base material
2.
5. the degreasing agent oil removal rate detection method according to claim 1 or 4, is characterized in that, described base material soaks 3min before putting in degreasing agent solution and washing in degreasing agent solution.
6. degreasing agent oil removal rate detection method according to claim 1, is characterized in that, the baking temperature in described step (3) is 38 DEG C-42 DEG C, and drying time is 2h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510571369.2A CN105136604A (en) | 2015-09-09 | 2015-09-09 | Detection method for oil removal rate of degreasant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510571369.2A CN105136604A (en) | 2015-09-09 | 2015-09-09 | Detection method for oil removal rate of degreasant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105136604A true CN105136604A (en) | 2015-12-09 |
Family
ID=54722034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510571369.2A Pending CN105136604A (en) | 2015-09-09 | 2015-09-09 | Detection method for oil removal rate of degreasant |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106525642A (en) * | 2016-11-16 | 2017-03-22 | 杭州传化精细化工有限公司 | Quantitative evaluation method for oil removing effect of oil removing agent for fabric |
| CN106680433A (en) * | 2016-12-30 | 2017-05-17 | 广州兴森快捷电路科技有限公司 | Device and method for detecting residual oil removing agent for product |
| CN108344667A (en) * | 2018-02-12 | 2018-07-31 | 广州蓝月亮实业有限公司 | A kind of test method of greasy dirt stripping |
| CN110426309A (en) * | 2019-07-10 | 2019-11-08 | 奥士康科技股份有限公司 | A method of measurement anti-solder ink solid content |
| CN111175171A (en) * | 2020-01-19 | 2020-05-19 | 贵州中烟工业有限责任公司 | Method for detecting surface oil quantity of cigarette blasting bead |
| CN111965332A (en) * | 2020-07-31 | 2020-11-20 | 东风本田汽车有限公司 | Method for testing matching performance of zirconium salt pretreatment process and vehicle body steel plate oil product |
| CN112782347A (en) * | 2019-11-07 | 2021-05-11 | 上海梅山钢铁股份有限公司 | Method for detecting degreasing performance of degreasing agent for cold-rolled hot-galvanized substrate |
-
2015
- 2015-09-09 CN CN201510571369.2A patent/CN105136604A/en active Pending
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106525642A (en) * | 2016-11-16 | 2017-03-22 | 杭州传化精细化工有限公司 | Quantitative evaluation method for oil removing effect of oil removing agent for fabric |
| CN106680433A (en) * | 2016-12-30 | 2017-05-17 | 广州兴森快捷电路科技有限公司 | Device and method for detecting residual oil removing agent for product |
| CN106680433B (en) * | 2016-12-30 | 2020-06-23 | 广州兴森快捷电路科技有限公司 | Device and method for detecting residual oil removing agent of product |
| CN108344667A (en) * | 2018-02-12 | 2018-07-31 | 广州蓝月亮实业有限公司 | A kind of test method of greasy dirt stripping |
| CN108344667B (en) * | 2018-02-12 | 2021-03-23 | 广州蓝月亮实业有限公司 | Oil stain stripping test method |
| CN110426309A (en) * | 2019-07-10 | 2019-11-08 | 奥士康科技股份有限公司 | A method of measurement anti-solder ink solid content |
| CN112782347A (en) * | 2019-11-07 | 2021-05-11 | 上海梅山钢铁股份有限公司 | Method for detecting degreasing performance of degreasing agent for cold-rolled hot-galvanized substrate |
| CN111175171A (en) * | 2020-01-19 | 2020-05-19 | 贵州中烟工业有限责任公司 | Method for detecting surface oil quantity of cigarette blasting bead |
| CN111965332A (en) * | 2020-07-31 | 2020-11-20 | 东风本田汽车有限公司 | Method for testing matching performance of zirconium salt pretreatment process and vehicle body steel plate oil product |
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| C06 | Publication | ||
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Applicant after: Anhui Jianghuai Automobile Group Limited by Share Ltd Address before: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Applicant before: Anhui Jianghuai Automotive Co., Ltd. |
|
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20151209 |