CN108020500A - It is a kind of quickly to detect the corrosion proof test fluid of tin plate and its detection method - Google Patents
It is a kind of quickly to detect the corrosion proof test fluid of tin plate and its detection method Download PDFInfo
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- CN108020500A CN108020500A CN201610975285.XA CN201610975285A CN108020500A CN 108020500 A CN108020500 A CN 108020500A CN 201610975285 A CN201610975285 A CN 201610975285A CN 108020500 A CN108020500 A CN 108020500A
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- tin plate
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
- G01N17/006—Investigating resistance of materials to the weather, to corrosion, or to light of metals
Abstract
The present invention relates to a kind of corrosion proof test fluid of quickly detection tin plate and its detection method, mainly solve existing electrolytic tinplate corrosion resistance and be difficult to quick, accurate test problems.A kind of quick detection corrosion proof test fluid of tin plate, which is yellow transparent solution, and the component and proportioning of test fluid are：Color developing agent, and its content is 5~15g/L；Accelerating agent, and its content is 2.0~7.0g/L；Surplus is deionized water；The color developing agent is the potassium ferricyanide；The accelerating agent is sodium chloride, the one or more in potassium chloride, magnesium chloride, ammonium chloride.Detection method is easy to operate, and detection sensitivity is high.
Description
Technical field
The present invention relates to tin plate surface detection technique, more particularly to a kind of quick detection corrosion proof survey of tin plate
Test solution and its detection method, belong to metal material surface detection field.
Background technology
Tin plate is the Low carbon cold rolling steel sheet or steel band that one or two sides is coated with pure tin, it is by the intensity of steel and shaping
Among property is incorporated into a kind of material with the appearance of the nontoxicity of tin, corrosion resistance, tin-welding and beauty, at present at home and abroad widely
Applied to fields such as food, chemical industry, electronics, household electrical appliances, decorations.Tin plate is that a kind of production technology is more complicated in itself, technology water
Put down the product that very high, manufacture difficulty is very big and quality requirement is very stringent.Corrosion resistance is to discriminate between high-end and low side tin plate weight
Want index, and the important directions of tin plate product quality lifting.Production Process for Steel Enterprise needs the plating to just having produced
The corrosion resisting property of tin steel plate finished product is used for quickly detecting, to carry out management and control to production according to testing result.
For the tin-plated product of tin coating weight (>=5.6g/m2), the method for corrosion proof detection have alloy tin galvanic couple (ATC),
The detection method such as salt fog, damp and hot.But detection time required for ATC methods is grown, damp and hot and neutral salt spray test time is also relatively
It is long, and and the result is that reaching unanimity property, is not easy to judge.In addition, these above-mentioned methods are required for laboratory equipment, can only test
Carry out experiment detection in room.
The Chinese patent document of Publication No. CN1677083A discloses a kind of tin-plated board corrosion-resistance rapid detecting method, adopts
Tin-plated board corrosion-resistance is detected with whiteness method, detin processing first is carried out to sample, then sample is put into whiteness instrument and is detected
And detected value is recorded, corrosion resistance rank judgement then is carried out to detected value.The invention detection method is Physical, before being related to model
Processing and whiteness instrument equipment, it is impossible to directly detected in enterprises production locale.Therefore, scene lacks one kind quickly, conveniently, accurately
Corrosion proof detection method.
The content of the invention
The corrosion proof test fluid of tin plate and its detection method are quickly detected the object of the present invention is to provide a kind of, mainly
Solve live electrolytic tinplate corrosion resistance and be difficult to quick, accurate test problems, be the quick judgement of cold rolling tin plate corrosion resisting property
Foundation is provided.
The technical solution adopted by the present invention is：A kind of quick detection corrosion proof test fluid of tin plate, the test fluid are
Yellow transparent solution, the component and proportioning of test fluid are：Color developing agent, and its content is 5~15g/L；Accelerating agent, and its content is
2.0~7.0g/L；Surplus is deionized water；The color developing agent is the potassium ferricyanide；The accelerating agent is sodium chloride, chlorination
One or more in potassium, magnesium chloride, ammonium chloride.The color developing agent, accelerating agent are that analysis is pure.
The preparation method of the above-mentioned quick detection corrosion proof test fluid of tin plate, comprises the following steps：
1) color developing agent, accelerating agent and deionized water are measured or measured respectively by proportioning；
2) color developing agent, accelerating agent and deionized water are inserted in container and stirred, obtain finished product yellow transparent
Test fluid.
Color developing agent, accelerating agent described in step 1) are that analysis is pure.
The corrosion resisting property of tin plate is detected using above-mentioned quick detection tin plate corrosion proof test fluid
Method, comprises the following steps：
1) tested surface of tin plate sample to be measured is cleaned up, makes its surface without Residual oil, free from dust；
2) tin plate sample to be measured is lain on testboard, 3~5 is dripped on the tested surface of tin plate sample to be measured
The drop test fluid simultaneously starts timing, a diameter of 1.0- of spherical crown of test droplets on the tested surface of tin plate sample to be measured
2.0cm；
3) observe and record on the tested surface of tin plate sample to be measured and the blue material required time occur；
4) tin plate corrosion resisting property to be measured evaluation, according to occurring in step 3) on the tested surface of tin plate sample to be measured
The blue material required time, evaluates tin plate corrosion resisting property to be measured, and the time for blue material needs occur longer shows
The corrosion resistance of tin plate to be measured is better, wherein, tin plating layer thickness is 5.6g/m2Tin plate, the tested surface of its sample goes out
Existing blue material required time >=50s, its corrosion resistance is qualified, otherwise its corrosion resistance is unqualified；Tin plating layer thickness is 8.4g/
m2Tin plate, there is blue material required time >=60s in the tested surface of its sample, its corrosion resistance is qualified, on the contrary its
Corrosion resistance is unqualified；Tin plating layer thickness is 11.2g/m2Tin plate, the tested surface of its sample occurs required for blue material
Time >=100s, its corrosion resistance is qualified, otherwise its corrosion resistance is unqualified.
The present invention is studied based on following, and tin layers are very thin on tin plate, typically not greater than 2 microns, although macroscopically tin plating
Plate surface is closely knit, it can be found that there is the hole for being largely deep into steel substrate on microcosmic.
After color developing agent and accelerator solution is added dropwise on tin plate, the oxygen in air is dissolved in solution, and solution penetrates into
Hole, occurs electrochemical corrosion, i.e.,：Anode (Fe)：2Fe-4e→2Fe2+；Cathode (C)：2H2O+O2+4e→4OH-。
Continuous with corrosion carries out, and boundary layer can form substantial amounts of ferrous hydroxide, prevent corrosion from further occurring, but
Chlorion penetrates readily through boundary layer because its radius is smaller, and generates the higher frerrous chloride of solubility and leave boundary layer, to corruption
Erosion process plays catalytic action.
The color developing agent potassium ferricyanide is chemically reacted with ferrous ion, generates the ferroferricyanide precipitation (Teng Shi of blueness
It is blue), its reaction equation is：Fe2++2[Fe(CN)6]3-→Fe3[Fe(CN)6]2。
After tin plate removes oil film, it is made of iron-based body, alloy-layer, tin layers, oxide-film, passivating film, it is corresponding from tin plating
Substrate production technique can all influence tin plate to tin plating degreasing, pickling, plating, soft heat, the control of passivation technology, each step process
Corrosion resistance.Under this experimental condition, tin plating each operation control is better, and each layer more than iron-based body is finer and close, tin plate hole
It is fewer, it is less susceptible to corrode, corrosion resistance is better to need the long period to produce blue material, so according to blue material
The time length that i.e. Bluepoint produces can determine whether the quality of tin-plated board corrosion-resistance.
The present invention has following good effect compared with prior art：1st, the present invention in test fluid by adding accelerating agent
And color developing agent, can quick, sensitive, the accurate corrosion resistance for testing tin plate.2nd, test fluid of the present invention prepares simple, detection side
Method is easy to operate, and working strength is low.
Embodiment
With reference to embodiment, the present invention is furture elucidated, it should be understood that following embodiments are only used for
It is bright the present invention rather than limit the scope of the invention.
Embodiment 1, the size of the tin plate sample detected are 100mm*100mm, trade mark MRT4-CA, steel plate
Thickness is 0.2mm, and the tin plating layer thickness of tin plate is respectively 5.6g/m2, 8.4g/m2, 11.2g/m2, same tin plating layer thickness
Tin plate to be measured prepare 3 groups of samples respectively.
A kind of quick detection corrosion proof test fluid of tin plate, the test fluid are yellow transparent solution, the group of test fluid
Divide and proportioning is：The potassium ferricyanide, and its content is 10g/L；NaCl, and its content is 5.0g/L；Surplus is deionized water.
The preparation method of the above-mentioned quick detection corrosion proof test fluid of tin plate, comprises the following steps：
1) the 10g potassium ferricyanides and 5.0gNaCl are measured or measured respectively by proportioning；
2) potassium ferricyanide, NaCl and deionized water are inserted in container and stirred, obtain finished product yellow transparent
Test fluid.
The corrosion resisting property of tin plate is detected using above-mentioned quick detection tin plate corrosion proof test fluid
Method, comprises the following steps：
1) tested surface of tin plate sample to be measured is cleaned up, makes its surface without Residual oil, free from dust；
2) tin plate sample to be measured is lain on testboard, 3 drops is dripped on the tested surface of tin plate sample to be measured
The test fluid simultaneously starts timing, a diameter of 1.5cm of spherical crown of test droplets on the tested surface of tin plate sample to be measured；
3) observe and record on the tested surface of tin plate sample to be measured and the blue material required time occur；
4) tin plate corrosion resisting property to be measured evaluation, according to occurring in step 3) on the tested surface of tin plate sample to be measured
The blue material required time, evaluates tin plate corrosion resisting property to be measured, and the time for blue material needs occur longer shows
The corrosion resistance of tin plate to be measured is better；Wherein, tin plating layer thickness is 5.6g/m2Tin plate, the tested surface of its 3 groups of samples
It is respectively 51s, 57s, 54s the blue material required time occur, is 54s the time required to average, its corrosion resistance is qualified；It is tin plating
Layer thickness is 8.4g/m2Tin plate, it is respectively 60s that the blue material required time, which occurs, in the tested surfaces of its 3 groups of samples,
56s, 59s, are 58.3s the time required to average, its corrosion resistance is unqualified；Tin plating layer thickness is 11.2g/m2Tin plate, it 3
Respectively 105s, 108s, 107s, the average required time is the time required to blue material occurs in the tested surface of group sample
106.6s, its corrosion resistance are qualified.
Embodiment 2, the size of the tin plate sample detected are 100mm*100mm, trade mark MRT4-CA, steel plate
Thickness is 0.2mm, and the tin plating layer thickness of tin plate is respectively 5.6g/m2, 8.4g/m2, 11.2g/m2, same tin plating layer thickness
Tin plate to be measured prepare 3 groups of samples respectively.
A kind of quick detection corrosion proof test fluid of tin plate, the test fluid are yellow transparent solution, the group of test fluid
Divide and proportioning is：The potassium ferricyanide, and its content is 10g/L；NaCl, and its content is 5.0g/L；Surplus is deionized water.
The preparation method of the above-mentioned quick detection corrosion proof test fluid of tin plate, comprises the following steps：
1) the 10g potassium ferricyanides and 6.0gNaCl are measured or measured respectively by proportioning；
2) potassium ferricyanide, NaCl and deionized water are inserted in container and stirred, obtain finished product yellow transparent
Test fluid.
The corrosion resisting property of tin plate is detected using above-mentioned quick detection tin plate corrosion proof test fluid
Method, comprises the following steps：
1) tested surface of tin plate sample to be measured is cleaned up, makes its surface without Residual oil, free from dust；
2) tin plate sample to be measured is lain on testboard, 3 drops is dripped on the tested surface of tin plate sample to be measured
The test fluid simultaneously starts timing, a diameter of 1.6cm of spherical crown of test droplets on the tested surface of tin plate sample to be measured；
3) observe and record on the tested surface of tin plate sample to be measured and the blue material required time occur；
4) tin plate corrosion resisting property to be measured evaluation, according to occurring in step 3) on the tested surface of tin plate sample to be measured
The blue material required time, evaluates tin plate corrosion resisting property to be measured, and the time for blue material needs occur longer shows
The corrosion resistance of tin plate to be measured is better；Wherein, tin plating layer thickness is 5.6g/m2Tin plate, the tested surface of its 3 groups of samples
It is respectively 50s, 55s, 56s the blue material required time occur, is 53.6s the time required to average, its corrosion resistance is qualified；Plating
Tin thickness is 8.4g/m2Tin plate, there is the blue material required time and is respectively in the tested surfaces of its 3 groups of samples
59s, 55s, 58s, are 57.3s the time required to average, its corrosion resistance is unqualified；Tin plating layer thickness is 11.2g/m2Tin-coated steel
Plate, the tested surface of its 3 groups of samples occur being respectively 106s, 109s, 103s, averagely required time the time required to blue material
It is qualified for 106s, its corrosion resistance.
Embodiment 3, the size of the tin plate sample detected are 100mm*100mm, trade mark MRT4-CA, steel plate
Thickness is 0.2mm, and the tin plating layer thickness of tin plate is respectively 5.6g/m2, 8.4g/m2, 11.2g/m2, same tin plating layer thickness
Tin plate to be measured prepare 3 groups of samples respectively.
A kind of quick detection corrosion proof test fluid of tin plate, the test fluid are yellow transparent solution, the group of test fluid
Divide and proportioning is：The potassium ferricyanide, and its content is 10g/L；KCl, and its content is 5.0g/L；Surplus is deionized water.
The preparation method of the above-mentioned quick detection corrosion proof test fluid of tin plate, comprises the following steps：
1) the 10g potassium ferricyanides and 5.0g KCl are measured or measured respectively by proportioning；
2) potassium ferricyanide, KCl and deionized water are inserted in container and stirred, obtain the survey of finished product yellow transparent
Test solution.
The corrosion resisting property of tin plate is detected using above-mentioned quick detection tin plate corrosion proof test fluid
Method, comprises the following steps：
1) tested surface of tin plate sample to be measured is cleaned up, makes its surface without Residual oil, free from dust；
2) tin plate sample to be measured is lain on testboard, 3 drops is dripped on the tested surface of tin plate sample to be measured
The test fluid simultaneously starts timing, a diameter of 1.6cm of spherical crown of test droplets on the tested surface of tin plate sample to be measured；
3) observe and record on the tested surface of tin plate sample to be measured and the blue material required time occur；
4) tin plate corrosion resisting property to be measured evaluation, according to occurring in step 3) on the tested surface of tin plate sample to be measured
The blue material required time, evaluates tin plate corrosion resisting property to be measured, and the time for blue material needs occur longer shows
The corrosion resistance of tin plate to be measured is better；Wherein, tin plating layer thickness is 5.6g/m2Tin plate, the tested surface of its 3 groups of samples
It is respectively 51s, 54s, 57s the blue material required time occur, is 54s the time required to average, its corrosion resistance is qualified；It is tin plating
Layer thickness is 8.4g/m2Tin plate, it is respectively 56s that the blue material required time, which occurs, in the tested surfaces of its 3 groups of samples,
58s, 57s, are 57s the time required to average, its corrosion resistance is unqualified；Tin plating layer thickness is 11.2g/m2Tin plate, its 3 groups
Respectively 107s, 106s, 104s, the average required time is the time required to blue material occurs in the tested surface of sample
105.6s, its corrosion resistance are qualified.
1 the method for the present invention of table and the ATC corrosion resistances detection method detection corrosion proof data of tin plate
As shown in Table 1, tin plate is carried out with the experiment corrosion resistance detection method using ATC using the method for the present invention resistance to
Performance detection is lost, both testing results are consistent, illustrate the method for the present invention accurately and reliably.
Above-described is only the preferred embodiment of the present invention, and in addition to the implementation, the present invention can also have other
Embodiment.All technical solutions formed using equivalent substitution or equivalent transformation, all fall within the protection domain of application claims.
Claims (3)
1. a kind of quick detection corrosion proof test fluid of tin plate, which is yellow transparent solution, it is characterised in that is surveyed
The component and proportioning of test solution be：Color developing agent, and its content is 5~15g/L；Accelerating agent, and its content is 2.0~7.0g/L；It is remaining
Measure as deionized water；The color developing agent is the potassium ferricyanide；The accelerating agent is sodium chloride, potassium chloride, magnesium chloride, ammonium chloride
In one or more；The color developing agent, accelerating agent are that analysis is pure.
2. the preparation method of the quick detection corrosion proof test fluid of tin plate as claimed in claim 1, comprises the following steps：
1) color developing agent, accelerating agent and deionized water are measured or measured respectively by proportioning；
2) color developing agent, accelerating agent and deionized water are inserted in container and stirred, obtain the test of finished product yellow transparent
Liquid.
3. a kind of quick detection corrosion proof method of tin plate, comprises the following steps：
1) tested surface of tin plate sample to be measured is cleaned up, makes its surface without Residual oil, free from dust；
2) tin plate sample to be measured is lain on testboard, 3~5 drop power is dripped on the tested surface of tin plate sample to be measured
Profit requires the corrosion proof test fluid of quick detection tin plate described in 1 and starts timing, tin plate sample to be measured it is to be measured
The a diameter of 1.0-2.0cm of the spherical crown of test droplets on face；
3) observe and record on the tested surface of tin plate sample to be measured and the blue material required time occur；
4) tin plate corrosion resisting property evaluation to be measured, it is blue according to occurring in step 3) on the tested surface of tin plate sample to be measured
The material required time, evaluates tin plate corrosion resisting property to be measured, occur blue material needs time it is longer show it is to be measured
The corrosion resistance of tin plate is better, wherein, tin plating layer thickness is 5.6g/m2Tin plate, the tested surface of its sample occurs blue
The color substance required time >=50s, its corrosion resistance is qualified, otherwise its corrosion resistance is unqualified；Tin plating layer thickness is 8.4g/m2's
There is blue material required time >=60s in tin plate, the tested surface of its sample, its corrosion resistance is qualified, otherwise its is anti-corrosion
Property is unqualified；Tin plating layer thickness is 11.2g/m2Tin plate, the tested surface of its sample occur blue material it is required when
Between >=100s, its corrosion resistance is qualified, otherwise its corrosion resistance is unqualified.
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| CN201610975285.XA CN108020500A (en) | 2016-10-28 | 2016-10-28 | It is a kind of quickly to detect the corrosion proof test fluid of tin plate and its detection method |
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| CN201610975285.XA CN108020500A (en) | 2016-10-28 | 2016-10-28 | It is a kind of quickly to detect the corrosion proof test fluid of tin plate and its detection method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109359431A (en) * | 2018-11-30 | 2019-02-19 | 中国航空工业集团公司沈阳飞机设计研究所 | The analogy method of material surface spot corrosion in a kind of flowing seawater |
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|---|---|---|---|---|
| CN1645099A (en) * | 2005-01-19 | 2005-07-27 | 浙江四方集团公司 | Testing liquid and method for rapid testing chrome-plating layer corrosion-proof performance |
| JP2010071919A (en) * | 2008-09-22 | 2010-04-02 | Seiko Epson Corp | Method for testing corrosion resistance of work, and apparatus for testing corrosion resistance of work |
| CN102313695A (en) * | 2011-07-28 | 2012-01-11 | 南昌航空大学 | Method for in-situ full-field early detection of stainless steel pitting |
| CN104122195A (en) * | 2014-07-30 | 2014-10-29 | 奥瑞金包装股份有限公司 | Detection liquid for detecting corrosion resistance of surface passivation film of tinned steel plate |
-
2016
- 2016-10-28 CN CN201610975285.XA patent/CN108020500A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1645099A (en) * | 2005-01-19 | 2005-07-27 | 浙江四方集团公司 | Testing liquid and method for rapid testing chrome-plating layer corrosion-proof performance |
| JP2010071919A (en) * | 2008-09-22 | 2010-04-02 | Seiko Epson Corp | Method for testing corrosion resistance of work, and apparatus for testing corrosion resistance of work |
| CN102313695A (en) * | 2011-07-28 | 2012-01-11 | 南昌航空大学 | Method for in-situ full-field early detection of stainless steel pitting |
| CN104122195A (en) * | 2014-07-30 | 2014-10-29 | 奥瑞金包装股份有限公司 | Detection liquid for detecting corrosion resistance of surface passivation film of tinned steel plate |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109359431A (en) * | 2018-11-30 | 2019-02-19 | 中国航空工业集团公司沈阳飞机设计研究所 | The analogy method of material surface spot corrosion in a kind of flowing seawater |
| CN109359431B (en) * | 2018-11-30 | 2022-12-20 | 中国航空工业集团公司沈阳飞机设计研究所 | Simulation method for material surface pitting in flowing seawater |
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Application publication date: 20180511 |