CN108107153A - A kind of detection method of degreasing agent degreasing efficiency - Google Patents
A kind of detection method of degreasing agent degreasing efficiency Download PDFInfo
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- CN108107153A CN108107153A CN201611052654.4A CN201611052654A CN108107153A CN 108107153 A CN108107153 A CN 108107153A CN 201611052654 A CN201611052654 A CN 201611052654A CN 108107153 A CN108107153 A CN 108107153A
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Abstract
The present invention relates to a kind of detection method of degreasing agent degreasing efficiency, the technical issues of mainly solving the degreasing efficiency of existing electrotinning substrate degreasing agent for cleaning can not accurately detect.The detection method of degreasing agent degreasing efficiency of the present invention, including：1) electrotinning substrate sample is prepared；2) 200mL degreasing agent solutions to be measured are added in into 400mL beakers；3) degreasing agent solution to be measured is placed in 50~70 DEG C of waters bath with thermostatic control and kept the temperature；4) sample immersion has been heated in prepare liquid and has been washed with pendulum；5) sample is taken out from degreasing agent solution to be measured, with deionized water rinsing, the continuous moisture film area value S1 of measurement specimen surface；6) degreasing efficiency is calculated.The method of the present invention is easy to operate, efficient, when detection time≤2 are small.
Description
Technical field
The present invention relates to a kind of detection method of degreasing agent degreasing performance, more particularly to a kind of inspection of degreasing agent degreasing efficiency
Survey method in particular to the detection method of electrotinning substrate degreasing efficiency of the degreasing agent of cleaning before electrotinning, belongs to
In the chemical analysis technology field of plating process of tin auxiliary material metal cleaner.
Background technology
Degreasing agent, also known as metal cleaner, are the major chemicals that pretreatment procedure uses.As organic synthesis surface is lived
Property the development of agent and it is constantly progressive, by early application soaps, to using all kinds of synthesis cleaning agents.Cleaning agent is divided into solid cleaner
And liquid ceanser.Degreasing is affected for the quality of product as an important procedure of production process, causes each side
Attention.Degreasing agent widely used at present is usually the alkaline defatting agent containing surfactant, and basis is alkalescence
Substance, builder, additive, surfactant, antifoaming agent etc., Mechanism of Degreasing are anti-to the saponification of grease by degreasing agent
It should.Degreasing agent is after line is using a period of time, and degreasing power, that is, degreasing efficiency is gradually reduced, when reaching degreasing power critical value
New soln must be replaced, just be can guarantee and normally produced and reach expected degreasing effect.Degreasing efficiency refers generally to the reality of degreasing agent
Remove the ratio of greasy dirt amount and the theoretical greasy dirt amount of removing completely.Degreasing power is bad easily to cause the surface defects such as mottling, corrosion, together
When the bad substrate surface Residual oil of degreasing presence, follow-up tin plating process coating is caused to combine bad formation plating leakage.Metal takes off at present
Fat agent is widely applied in electrotinning enterprise, but the work that not yet conducts a research to degreasing agent degreasing Efficiency testing method.Therefore to de-
The research of fat agent degreasing Efficiency testing method can assess its degreasing power in time, and can be that degreasing agent industry is instructed to make
With offering reference.
The prior art has no the document report on electrotinning substrate degreasing agent degreasing Efficiency testing method, at present can not
Cold rolling electroplating tin is detected with degreasing agent degreasing efficiency.
The Chinese patent application of application publication number CN104880489A discloses a kind of survey of alkaline defatting agent rinsing performance
Method for testing, this method are directed to before rinsing and detect its conductivity value respectively with the alkaline defatting agent after rinsing, before foundation rinsing and float
The electrical conductivity value difference of rear degreasing agent is washed, calculates rinse capacity rate.It is not directed to degreasing agent just for degreasing agent rinsing performance
Degreasing efficiency.The Chinese patent application of application publication number CN103696224A discloses a kind of side for improving natural feather degreasing efficiency
Method, this method are ensureing natural feather whiteness, fluffy degree, cleaning by carrying out washing degreasing and mechanical presses ungrease treatment to natural feather
In the case that degree, oxygen demand are unaffected, natural feather degreasing efficiency can be made at least to improve about 25%, so that natural feather Low grease.
This method improves degreasing efficiency by technology controlling and process, is not directed to degreasing Efficiency testing method.
The content of the invention
The object of the present invention is to provide a kind of detection methods of degreasing agent degreasing efficiency, mainly solve existing electrotinning substrate
The technical issues of degreasing efficiency of degreasing agent for cleaning can not be detected accurately.
The technical solution adopted by the present invention is：A kind of detection method of degreasing agent degreasing efficiency, comprises the following steps：
1) prepare electrotinning substrate sample, surface no-pollution, non-corroding electrotinning substrate on intercept a block size and be
5cm × 10cm samples；
2) 200mL degreasing agent solutions to be measured are added in into 400mL beakers, the sodium hydroxide quality in degreasing agent solution to be measured
Concentration is 14~17g/L；
3) degreasing agent solution to be measured is placed in 50~70 DEG C of waters bath with thermostatic control and kept the temperature；
4) sample immersion has been heated in prepare liquid and 1 time/second of frequency is washed with pendulum, pendulum is continuously put away from 5cm and washed 10~15 times；
5) sample is taken out from degreasing agent solution to be measured, with deionized water rinsing 5~10 seconds, measurement specimen surface was continuous
Moisture film area value S1, S1 are 0~100；
6) degreasing efficiency is calculated, degreasing efficiency is calculated by formula η=S1/S × 100%, and in formula, η is degreasing efficiency；S1 is
The continuous moisture film area value of specimen surface after the actual degreasing of sample；S is the continuous moisture film area of specimen surface after the complete degreasing of sample
Theoretical value, S 100.
Further, degreasing efficiency eta is 0~100%, shows specimen surface when specimen surface moisture film area value is up to 100
Greasy residues amount is 0, and cleaning performance is optimal, degreasing efficiency highest；Otherwise it is 0 to work as specimen surface moisture film area value, that is, shows sample
Plate surface greasy residues amount is 100%, and cleaning performance is worst, and degreasing efficiency is minimum；When specimen surface moisture film area value between 0~
Show specimen surface when between 100 there are part greasy residues, cleaning performance declines, and degreasing efficiency declines.
The method of the present invention is based on as sodium hydrate content continuously decreases in solution, and degreasing agent degreasing power declines；With electricity
Tinning substrate sample is put in the solution to be washed, and evaluates continuous moisture film area, is detected degreasing efficiency, thereby can be prejudged or evaluate degreasing agent
Service life.
The method of the present invention can accurately detect cold rolling electroplating degreasing agent degreasing efficiency.
The method of the present invention realizes the detection of cold rolling electroplating degreasing agent degreasing efficiency, is electroplating substrate degreasing agent for cleaning
The monitoring and anticipation of service life provide simple and easy to do and effective method.
The present invention has following good effect compared with prior art：1st, the method for the present invention has filled up the degreasing of existing degreasing agent
The blank of Efficiency testing method realizes the accurate detection of electroplating substrate degreasing agent for cleaning degreasing efficiency.2nd, the method for the present invention
It is easy to operate, efficient, when detection time≤2 are small.
Specific embodiment
With reference to embodiment, the present invention is furture elucidated, it should be understood that following specific embodiments are only used for
It is bright the present invention rather than limit the scope of the invention.
Embodiment 1, degreasing agent solution to be measured have used 10 working days in production line, the hydrogen-oxygen in degreasing agent solution to be measured
It is 14g/L to change sodium mass concentration, and a kind of detection method of degreasing agent degreasing efficiency comprises the following steps：
1) prepare electrotinning substrate sample, surface no-pollution, non-corroding electrotinning substrate on intercept a block size and be
5cm × 10cm samples；
2) 200mL degreasing agent solutions to be measured are added in into 400mL beakers；
3) degreasing agent solution to be measured is placed in 60 DEG C of waters bath with thermostatic control and kept the temperature；
4) sample immersion has been heated in prepare liquid and 1 time/second of frequency is washed with pendulum, pendulum is continuously put away from 5cm and washed 10 times；
5) sample from degreasing agent solution to be measured is taken out, with deionized water rinsing 5 seconds, measures the continuous moisture film of specimen surface
Area value S1, S1 95；
6) degreasing efficiency is calculated, degreasing efficiency eta is 95%.
Embodiment 2, degreasing agent solution to be measured have used 20 working days in production line, the hydrogen-oxygen in degreasing agent solution to be measured
It is 14g/L to change sodium mass concentration, and a kind of detection method of degreasing agent degreasing efficiency comprises the following steps：
1) prepare electrotinning substrate sample, surface no-pollution, non-corroding electrotinning substrate on intercept a block size and be
5cm × 10cm samples；
2) 200mL degreasing agent solutions to be measured are added in into 400mL beakers；
3) degreasing agent solution to be measured is placed in 60 DEG C of waters bath with thermostatic control and kept the temperature；
4) sample immersion has been heated in prepare liquid and 1 time/second of frequency is washed with pendulum, pendulum is continuously put away from 5cm and washed 10 times；
5) sample from degreasing agent solution to be measured is taken out, with deionized water rinsing 8 seconds, measures the continuous moisture film of specimen surface
Area value S1, S1 92；
6) degreasing efficiency is calculated, degreasing efficiency eta is 92%.
Embodiment 3, degreasing agent solution to be measured have used 30 working days in production line, the hydrogen-oxygen in degreasing agent solution to be measured
It is 14g/L to change sodium mass concentration, and a kind of detection method of degreasing agent degreasing efficiency comprises the following steps：
1) prepare electrotinning substrate sample, surface no-pollution, non-corroding electrotinning substrate on intercept a block size and be
5cm × 10cm samples；
2) 200mL degreasing agent solutions to be measured are added in into 400mL beakers；
3) degreasing agent solution to be measured is placed in 60 DEG C of waters bath with thermostatic control and kept the temperature；
4) sample immersion has been heated in prepare liquid and 1 time/second of frequency is washed with pendulum, pendulum is continuously put away from 5cm and washed 10 times；
5) sample from degreasing agent solution to be measured is taken out, with deionized water rinsing 5 seconds, measures the continuous moisture film of specimen surface
Area value S1, S1 90；
6) degreasing efficiency is calculated, degreasing efficiency eta is 90%.
In addition to the implementation, the present invention can also have other embodiment.It is all to use equivalent substitution or equivalent transformation shape
Into technical solution, all fall within the present invention claims protection domain.
Claims (1)
1. a kind of detection method of degreasing agent degreasing efficiency, it is characterized in that, this method includes：
1) prepare electrotinning substrate sample, surface no-pollution, non-corroding electrotinning substrate on intercept a block size for 5cm ×
10cm samples；
2) 200mL degreasing agent solutions to be measured are added in into 400mL beakers, the sodium hydroxide mass concentration in degreasing agent solution to be measured
For 14~17g/L；
3) degreasing agent solution to be measured is placed in 50~70 DEG C of waters bath with thermostatic control and kept the temperature；
4) sample immersion has been heated in prepare liquid and 1 time/second of frequency is washed with pendulum, pendulum is continuously put away from 5cm and washed 10~15 times；
5) sample from degreasing agent solution to be measured is taken out, with deionized water rinsing 5~10 seconds, measures the continuous moisture film of specimen surface
Area value S1, S1 are 0~100；
6) degreasing efficiency is calculated, degreasing efficiency is calculated by formula η=S1/S × 100%, and in formula, η is degreasing efficiency；S1 is sample
The continuous moisture film area value of specimen surface after actual degreasing；S is the theory of the continuous moisture film area of specimen surface after the complete degreasing of sample
Value, S 100.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201611052654.4A CN108107153A (en) | 2016-11-25 | 2016-11-25 | A kind of detection method of degreasing agent degreasing efficiency |
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| CN201611052654.4A CN108107153A (en) | 2016-11-25 | 2016-11-25 | A kind of detection method of degreasing agent degreasing efficiency |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101519785A (en) * | 2008-02-27 | 2009-09-02 | 宝山钢铁股份有限公司 | Metal surface degreasing agent and application method thereof |
-
2016
- 2016-11-25 CN CN201611052654.4A patent/CN108107153A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101519785A (en) * | 2008-02-27 | 2009-09-02 | 宝山钢铁股份有限公司 | Metal surface degreasing agent and application method thereof |
Non-Patent Citations (4)
| Title |
|---|
| 毛培坤: "《合成洗涤剂工业分析》", 30 June 1988, 轻工业出版社 * |
| 王建平: "低温低泡脱脂剂的研制与应用", 《表面技术》 * |
| 祁庆琚: "冷轧产品用脱脂剂性能的综合评价方法", 《腐蚀与防护》 * |
| 祁庆琚: "碱性清洗剂在冷轧钢板生产中使用性能的研究", 《腐蚀研究》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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Application publication date: 20180601 |