CN105021516B - A kind of test fluid and test pad pasting and its detection method of detection tin-plated board corrosion-resistance - Google Patents
A kind of test fluid and test pad pasting and its detection method of detection tin-plated board corrosion-resistance Download PDFInfo
- Publication number
- CN105021516B CN105021516B CN201410150104.0A CN201410150104A CN105021516B CN 105021516 B CN105021516 B CN 105021516B CN 201410150104 A CN201410150104 A CN 201410150104A CN 105021516 B CN105021516 B CN 105021516B
- Authority
- CN
- China
- Prior art keywords
- tin
- corrosion
- test fluid
- resistance
- test
- 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.)
- Active
Links
Landscapes
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
- Investigating And Analyzing Materials By Characteristic Methods (AREA)
Abstract
The present invention relates to a kind of test fluid for detecting tin-plated board corrosion-resistance and test pad pasting and its detection method, the technical issues of detection time existing for existing tin-plated board corrosion-resistance detection method is long, can not be detached from laboratory experiment device detects is solved.The test fluid for detecting tin-plated board corrosion-resistance, via taking 1 ~ 2g ascorbic acid to be dissolved in water；20 ~ 50g copper chloride is taken to be dissolved in water；3.6 ~ 18ml hydrochloric acid is taken to be diluted with water；Take 1 ~ 10ml Qula logical（OP-10）It is diluted with water；The merging of above-mentioned solution is diluted to 1000ml to obtain.Detect the test pad pasting of tin-plated board corrosion-resistance, the hydrophobic plastic film of main cellulose paper and outer layer including internal layer, hydrophobic plastic film is slightly larger than cellulose paper, four sides for being saturated with the cellulose paper of test fluid are bonding by adhesive waterproof tape and hydrophobic plastic film, and plastic packaging machine edge sealing is used after hydrophobic plastic film doubling.The present invention provides foundation for the corrosion proof quick and precisely judgement of cold rolling electroplating tin steel plate.
Description
Technical field
The invention belongs to field of metal material detection, are related to the detection method of cold rolling tin plate corrosion resisting property, especially relate to
And a kind of test fluid and test pad pasting and its detection method, predominantly cold rolling tin plate corrosion resistance of detection tin-plated board corrosion-resistance
Judgement provide foundation.
Background technique
Cold rolling tin plate is a kind of common packaging material, is chiefly used in food and drink packaging.Cold rolling tin plate is allusion quotation
The flash plating laminate of type, in recent years, as manufacturing enterprise requires higher and higher, cold rolling tin plate overlay coating for cost control
Have the tendency that continuing it is thinned, if beverage plate is mostly 1.1g/m with tin coating weight2Based on, tin thickness only about 0.2um.
When coating is relatively thin, due to the unequal factor of coating, coating surface will appear dew iron or local uneven coating etc.
Problem, these defects are very small, and cold rolling tin plate finished product is not easy to find in exfactory inspection, generally transporting or reaching use
At family, point rust occurs, the defects of mottling, these defects occur that the presentation quality of packaging material can be seriously affected, and further may be used also
It can influence the food safety of pack content.Corrosion resistance becomes the important indicator for distinguishing high-end and low and middle-end tin plate, high anti-corrosion
And the important directions that production scene is laid siege to.
The corrosion resistance of cold rolling tin plate can use porosity, the parameter characterizations such as iron solution value, using these characterizing methods
Afterwards, technical staff has found, the product of iron solution value having the same, and practical anti-corrosion gender gap is larger, accurate Electronic Speculum detection discovery,
Main cause is that iron solution value can only reflect the dew iron gross area, and big uncoated dot or the potential iron that reveals are for the appearance effects of corrosion
Greatly, small uncoated dot influences small.
It is too long to measure the damp and hot experimental period of corrosion proof conventional method, salt mist experiment method result is tended to consistency and is difficult to
Distinguish rust spot, in addition, these methods require laboratory equipment, can only be carried out in laboratory and cannot be in production scene or use
Carried out at family, for corrosion testing result there are hysteresis quality, be unfavorable for carrying out Quality estimation at once or carry out production improving
Work.
It is relatively more to detect the corrosion proof prior art of metal material, but expensive detection device is mostly used to be examined
It surveys, the lower rapid detection method of cost free, Chinese patent CN 1645099A is entitled, quickly detects chrome-plating layer corrosion-proof performance
Test fluid and method disclose a kind of test fluid for detecting chrome-plating layer corrosion-proof performance, and use and be sprayed on filter paper, and filter paper is covered
The method detection chrome-plating layer corrosion-proof performance on test sample is covered, it is close with technical field locating for the present invention, but chromium and tin is resistance to
Corrosion gap is larger, and chrome layer is substantially thinner than tin coating, so the corrosive agent used is distinct, also, directly on filter paper
Sprinkling corrosive liquid is difficult to ensure consistency, and place is also difficult to carry out other than laboratory.It needs to establish one kind quick and precisely to detect
The corrosion proof detection means of cold rolling tin plate quickly knows tin-plated board corrosion-resistance energy to meet, in favor of product quality promotion.
Summary of the invention
The object of the present invention is to provide a kind of test fluid for detecting tin-plated board corrosion-resistance and pad pasting and its detection method are tested,
Solve the technology that detection time existing for existing tin-plated board corrosion-resistance detection method is long, can not be detached from the detection of laboratory experiment device
Problem provides foundation for the corrosion proof quick and precisely judgement of cold rolling electroplating tin steel plate.
Basic principle used by technological means of the invention is：Since tin plate tin layers are very thin, exist thereon hole and
Reveal iron position, these positions will become the hot spot in long-term storage or application process.The quantity of hole and uncoated dot, size
And concentration, determine the severity with post-etching.Since the corrosion resistance of tin is better than iron, prepared etching solution is for tin
The corrosion of layer is little, but the corrosive liquid of Surfactant OP -10 is added, and can penetrate into tin layers hole, directly occurs instead with iron-based
It answers, the dissolved ferric iron on tin plate is ferrous ion by sulfuric acid and hydrochloric acid, and ferrous ion and copper chloride generate red red copper, directly
It is showed in aperture position and dew iron position.According to the quantity, size and concentration of tin plate sheet surface red copper spot, judgement
Blotch is not present in the quality of tin-plated board corrosion-resistance, qualified tin plate.
The technical solution adopted by the present invention is that：
A kind of test fluid detecting tin-plated board corrosion-resistance, via taking 1 ~ 2g ascorbic acid to be dissolved in water；Take 20 ~ 50g chlorination
Copper is dissolved in water；3.6 ~ 18ml hydrochloric acid is taken to be diluted with water；Take 1 ~ 10ml Qula logical（OP-10）It is diluted with water；Above-mentioned solution is closed
And it is diluted to 1000ml and obtains.
The Surfactant OP -10 of test fluid, can significantly improve the osmotic effect of test fluid.Various reagents in test fluid
Additional amount directly affects detection effect, and the excessive red copper that will lead to red of concentration is presented on tin plate in large area, and concentration
It is too low to will lead to that corrosion pit diameter is identical, it can not judge that the quantity of blotch, the present invention are proved through test of many times, it is final to determine
The above formula is corrosive liquid.
A kind of test pad pasting detecting tin-plated board corrosion-resistance, the hydrophobic plastic of main cellulose paper and outer layer including internal layer
Film, hydrophobic plastic film are slightly larger than cellulose paper, are saturated with four sides of the cellulose paper of test fluid by adhesive waterproof tape and dredge
Water plastic film is bonding, and plastic packaging machine edge sealing is used after hydrophobic plastic film doubling.
Experiment shows that detection effect is preferred when 10cm × 10cm cellulose paper is saturated with 50 ~ 100ml test fluid.
A method of detection tin-plated board corrosion-resistance includes the following steps：
A, stain, the oil mark of tin plate specimen surface are removed with petroleum ether and dehydrated alcohol wiping, then be washed with deionized water
Only, it is then blotted or is placed in clean air with filter paper and dried；
B, test pad pasting edge is cut off, the cellulose paper for being impregnated with test fluid is attached to downwards tin plate sample by inspection position
Surface on, coating surface and test pad pasting between should not have air；
C, test pad pasting patch is taken off after ten minutes, and clean place is placed on after tin plate sample is washed with deionized water；
D, detect by an unaided eye corrosion pit of the sample by inspection position with the presence or absence of red, and according to the quantity of spot and intensively
Degree judges the corrosion resistance of tin plate.
In step b of the present invention, the cellulose paper for being impregnated with test fluid is 10cm × 10cm, selects three test pad pastings altogether
Be attached to three it is different by inspection position.
In step d of the present invention, the weight averaged large-scale punctation for occurring 1 2mm × 2mm in detection faces is tin plating
The corrosion resisting property of plate is as unqualified.
The method of the present invention can quickly detect low tin coating weight tin plate corrosion state, and it is living to joined surface in test fluid of the present invention
Property agent OP-10, improves the osmotic effect of test fluid, prevents rust spot missing inspection, to this low tin coating weight that becomes rusty（Such as 1.1g/m2）It is tin plating
The major quality defect of plate can be carried out accurate detection, help to improve tin plate quality.
The present invention has following good effect compared with prior art：
1. the present invention improves the osmotic effect of test fluid, prevents by joined Surfactant OP -10 in test fluid
Rust spot missing inspection realizes the corrosion proof rapid and accurate determination of cold rolling tin plate, can quickly find that there are points in production scene
The tin plate of rust trend improves production quality gain time in time to be adjusting process.
2. the present invention is used using packing after cellulose paper and hydrophobic plastic Film laminated, it can be ensured that test solution prepares aspect
Consistency, be easy to carry about with one, it is easy to produce scene use, it is easy to operate, labor intensity is low, without laboratory experiment equip
It completes.
3. the present invention is conducive to the health of testing staff without using poisonous and harmful reagent, reduce to human body and ring
Border harm, environmental protection of enterprise demand for development.
Detailed description of the invention
The present invention will be further described below with reference to the drawings.
Attached drawing 1 is the schematic diagram before present invention test pad pasting plastic packaging
Attached drawing 2 is the schematic diagram after present invention test pad pasting plastic packaging
Description of symbols in figure：
1- hydrophobic plastic film；2- cellulose paper；3- adhesive tape.
Specific embodiment
It is further described below in conjunction with specific embodiments of the present invention.
Embodiment 1：
A kind of test fluid detecting tin-plated board corrosion-resistance, via taking 1g ascorbic acid to be dissolved in water；20g copper chloride is taken to add water
Dissolution；3.6ml hydrochloric acid adds deionized water to dilute；Take 1ml Qula logical（OP-10）It is diluted with water；The merging of above-mentioned solution is diluted to
1000ml is obtained.
A kind of test pad pasting detecting tin-plated board corrosion-resistance, the hydrophobic plastic of main cellulose paper and outer layer including internal layer
Film, hydrophobic plastic film are 12cm × 12cm, and cellulose paper is that 10cm × 10cm is saturated with 100ml test fluid referring to Fig.1
Cellulose paper four sides by adhesive waterproof tape and hydrophobic plastic film it is bonding, reference Fig. 2, used after hydrophobic plastic film doubling
Plastic packaging machine edge sealing.
A method of detection tin-plated board corrosion-resistance includes the following steps：
A, stain, the oil mark of tin plate specimen surface are removed with petroleum ether and dehydrated alcohol wiping, then be washed with deionized water
Only, it is then blotted or is placed in clean air with filter paper and dried；
B, test pad pasting edge is cut off, the cellulose paper for being impregnated with test fluid is attached to downwards tin plate sample by inspection position
Surface on, select altogether three put up film be attached to three it is different by inspection position, should not have time between coating surface and test pad pasting
Gas；
C, test pad pasting patch is taken off after ten minutes, and clean place is placed on after tin plate sample is washed with deionized water；
D, detect by an unaided eye corrosion pit of the sample by inspection position with the presence or absence of red, and according to the quantity of spot and intensively
Degree judges the corrosion resistance of tin plate, and the weight averaged large-scale punctation for occurring 1 2mm × 2mm in detection faces is tin plating
The corrosion resisting property of plate is as unqualified.
Embodiment 2：
A kind of test fluid detecting tin-plated board corrosion-resistance, via taking 2g ascorbic acid to be dissolved in water；50g copper chloride is taken to add water
Dissolution；7.2ml hydrochloric acid adds deionized water to dilute；Take 5ml Qula logical（OP-10）It is diluted with water；The merging of above-mentioned solution is diluted to
1000ml is obtained.
A kind of test pad pasting detecting tin-plated board corrosion-resistance, the hydrophobic plastic of main cellulose paper and outer layer including internal layer
Film, hydrophobic plastic film are 12cm × 12cm, and cellulose paper is that 10cm × 10cm is saturated with 75ml test fluid referring to Fig.1
Four sides of cellulose paper are bonding by adhesive waterproof tape and hydrophobic plastic film, referring to Fig. 2, with modeling after hydrophobic plastic film doubling
Envelope machine edge sealing.
Detection method as described in Example 1 detects same cold rolling electroplating tin steel plate, can equally detect identical
Result.
Embodiment 3：
A kind of test fluid detecting tin-plated board corrosion-resistance, via taking 1g ascorbic acid to be dissolved in water；40g copper chloride is taken to add water
Dissolution；18ml hydrochloric acid adds deionized water to dilute；Take 10ml Qula logical（OP-10）It is diluted with water；The merging of above-mentioned solution is diluted to
1000ml is obtained.
A kind of test pad pasting detecting tin-plated board corrosion-resistance, the hydrophobic plastic of main cellulose paper and outer layer including internal layer
Film, hydrophobic plastic film are 12cm × 12cm, and cellulose paper is that 10cm × 10cm is saturated with 50ml test fluid referring to Fig.1
Four sides of cellulose paper are bonding by adhesive waterproof tape and hydrophobic plastic film, referring to Fig. 2, with modeling after hydrophobic plastic film doubling
Envelope machine edge sealing.
Detection method as described in Example 1 detects same cold rolling electroplating tin steel plate, can equally detect identical
Result.
Claims (5)
1. a kind of test fluid for detecting tin-plated board corrosion-resistance, it is characterized in that：
1~2g ascorbic acid is taken to be dissolved in water；
20~50g copper chloride is taken to be dissolved in water；
3.6~18ml hydrochloric acid is taken to be diluted with water；
1~10ml OP-10 is taken to be diluted with water；
The merging of above-mentioned solution is diluted to 1000ml, test fluid can be obtained.
2. testing pad pasting made of test fluid as described in claim 1, main cellulose paper and outer layer including internal layer is dredged
Water plastic film, hydrophobic plastic film are slightly larger than cellulose paper, characterized in that four sides for being saturated with the cellulose paper of test fluid are logical
It crosses adhesive waterproof tape and hydrophobic plastic film is bonding, plastic packaging machine edge sealing is used after hydrophobic plastic film doubling.
3. test pad pasting as claimed in claim 2, characterized in that the cellulose paper be 10cm × 10cm be saturated with 50~
100ml test fluid.
4. as claimed in claim 2 test pad pasting detection tin-plated board corrosion-resistance method, characterized in that the method includes with
Lower step：
A, stain, the oil mark of tin plate specimen surface are removed with petroleum ether and dehydrated alcohol wiping, then be washed with deionized water, so
It is blotted or is placed in clean air with filter paper afterwards and dried；
B, test pad pasting edge is cut off, the cellulose paper for being impregnated with test fluid is attached to downwards tin plate sample by the table at inspection position
On face, there should not be air between coating surface and test pad pasting；
C, test pad pasting patch is taken off after ten minutes, and clean place is placed on after tin plate sample is washed with deionized water；
D, detect by an unaided eye corrosion pit of the sample by inspection position with the presence or absence of red, and quantity and concentration according to spot
Judge the corrosion resistance of tin plate.
5. detection method as claimed in claim 4, characterized in that the cellulose paper for being impregnated with test fluid be 10cm ×
10cm, select altogether three test pad pastings be attached to three it is different by inspection position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410150104.0A CN105021516B (en) | 2014-04-15 | 2014-04-15 | A kind of test fluid and test pad pasting and its detection method of detection tin-plated board corrosion-resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410150104.0A CN105021516B (en) | 2014-04-15 | 2014-04-15 | A kind of test fluid and test pad pasting and its detection method of detection tin-plated board corrosion-resistance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105021516A CN105021516A (en) | 2015-11-04 |
| CN105021516B true CN105021516B (en) | 2018-11-23 |
Family
ID=54411651
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410150104.0A Active CN105021516B (en) | 2014-04-15 | 2014-04-15 | A kind of test fluid and test pad pasting and its detection method of detection tin-plated board corrosion-resistance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105021516B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109557016B (en) * | 2017-09-25 | 2021-07-09 | 上海梅山钢铁股份有限公司 | Method for detecting surface corrosion active points of low-tin-content cold-rolled electrolytic tin-plated steel plate |
| CN114324192A (en) * | 2022-01-07 | 2022-04-12 | 珠海格力电工有限公司 | Method for judging oxidation resistance of tin-plated wire |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1174833A1 (en) * | 1983-12-27 | 1985-08-23 | Ордена Трудового Красного Знамени Институт Физической Химии Ан Ссср | Solution for accelerated intercrystalline corrosion testing of iron-nickel alloy |
| JPH0598465A (en) * | 1991-03-29 | 1993-04-20 | Toyo Kohan Co Ltd | Manufacture of thinned resin coated tinned steel sheet for deep drawing excellent in working corrosion resistance |
| US5804140A (en) * | 1994-12-20 | 1998-09-08 | Yokogawa Engineering Service Corporation | Corrosion inspection plate, measurement for corrosive environment and case for the corrosion inspection plate |
| EP1106986A2 (en) * | 1999-12-11 | 2001-06-13 | Rasselstein Hoesch GmbH | Method for determining the corrosion resistance of tin plated iron |
| 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 |
| CN1677083A (en) * | 2004-03-29 | 2005-10-05 | 宝山钢铁股份有限公司 | Tin-plated board corrosion-resistance rapid detecting method |
| CN101281114A (en) * | 2008-05-16 | 2008-10-08 | 华南理工大学 | Soaking color transferring method for evaluating magnesium, aluminum and alloy corrosion resistance |
| CN101358342A (en) * | 2008-08-12 | 2009-02-04 | 武汉钢铁(集团)公司 | Brilliant tin plate chromium-free passivation solution and passivation method |
| CN102466613A (en) * | 2010-11-08 | 2012-05-23 | 北京有色金属研究总院 | Method of accelerated corrosion test used for simulating corrosion process of copper and alloy thereof in atmosphere |
| CN102841050A (en) * | 2012-08-31 | 2012-12-26 | 华南理工大学 | Method for quickly detecting material corrosion resistance |
| CN202710445U (en) * | 2012-07-18 | 2013-01-30 | 上海宝钢工业技术服务有限公司 | Test box for tin plate corrosion resistance tests |
-
2014
- 2014-04-15 CN CN201410150104.0A patent/CN105021516B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1174833A1 (en) * | 1983-12-27 | 1985-08-23 | Ордена Трудового Красного Знамени Институт Физической Химии Ан Ссср | Solution for accelerated intercrystalline corrosion testing of iron-nickel alloy |
| JPH0598465A (en) * | 1991-03-29 | 1993-04-20 | Toyo Kohan Co Ltd | Manufacture of thinned resin coated tinned steel sheet for deep drawing excellent in working corrosion resistance |
| US5804140A (en) * | 1994-12-20 | 1998-09-08 | Yokogawa Engineering Service Corporation | Corrosion inspection plate, measurement for corrosive environment and case for the corrosion inspection plate |
| EP1106986A2 (en) * | 1999-12-11 | 2001-06-13 | Rasselstein Hoesch GmbH | Method for determining the corrosion resistance of tin plated iron |
| CN1677083A (en) * | 2004-03-29 | 2005-10-05 | 宝山钢铁股份有限公司 | Tin-plated board corrosion-resistance rapid detecting method |
| 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 |
| CN101281114A (en) * | 2008-05-16 | 2008-10-08 | 华南理工大学 | Soaking color transferring method for evaluating magnesium, aluminum and alloy corrosion resistance |
| CN101358342A (en) * | 2008-08-12 | 2009-02-04 | 武汉钢铁(集团)公司 | Brilliant tin plate chromium-free passivation solution and passivation method |
| CN102466613A (en) * | 2010-11-08 | 2012-05-23 | 北京有色金属研究总院 | Method of accelerated corrosion test used for simulating corrosion process of copper and alloy thereof in atmosphere |
| CN202710445U (en) * | 2012-07-18 | 2013-01-30 | 上海宝钢工业技术服务有限公司 | Test box for tin plate corrosion resistance tests |
| CN102841050A (en) * | 2012-08-31 | 2012-12-26 | 华南理工大学 | Method for quickly detecting material corrosion resistance |
Non-Patent Citations (1)
| Title |
|---|
| 罐装食品用电镀锡板的耐蚀性及其试验方法;李岩等;《材料保护》;20020831;第35卷(第8期);第20-23页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105021516A (en) | 2015-11-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Katayama et al. | Long-term atmospheric corrosion properties of thermally sprayed Zn, Al and Zn–Al coatings exposed in a coastal area | |
| Williams et al. | Cerium (III) inhibition of corrosion-driven organic coating delamination studied using a scanning Kelvin probe technique | |
| de Oliveira et al. | Effect of silicate-based films on the corrosion behavior of the API 5L X80 pipeline steel | |
| Notter et al. | Porosity of electrodeposited coatings: its cause, nature, effect and management | |
| CN105021516B (en) | A kind of test fluid and test pad pasting and its detection method of detection tin-plated board corrosion-resistance | |
| CN106814026A (en) | Method for rapidly testing corrosion resistance of coated plate | |
| Cova Caiazzo et al. | Chemical and morphological characterization of commercial tinplate for food packaging | |
| Cui et al. | The effect of chlorine ion on metal corrosion behavior under the scratch defect of coating | |
| Zhu et al. | Electrochemical impedance spectroscopy study of the corrosion of 3Cr pipeline steel in simulated CO2-saturated oilfield formation waters | |
| Xia et al. | The corrosion behavior of lacquered tinplate in functional beverage | |
| Cheng et al. | Effect of relative humidity on the initial atmospheric corrosion behavior of zinc during drying | |
| CN110057850A (en) | A kind of the X-ray non-destructive testing device and method of metal component surface holiday | |
| Usman | Green and effective anodizing of AA 2024-T3 in methionine-sulfuric acid electrolyte | |
| Melvin et al. | Identifying interlayer surface adhesion failure mechanisms in tinplate packaging steels | |
| CN102042809B (en) | Medicinal liquid for coating film thickness layer detection and detection method | |
| CN105828522A (en) | Platinum-plated circuit board, and manufacturing technology of the same | |
| CN102607473B (en) | Crack sounding and monitoring penetration detection method and simulation test block | |
| CN1645099A (en) | Testing liquid and method for rapid testing chrome-plating layer corrosion-proof performance | |
| CN103402327B (en) | A kind of manufacture method printed electrode for Portable heavy metal detection | |
| CN107401980A (en) | Method for measuring thickness of hot-dip coating micro-area | |
| CN100520354C (en) | Alloy chemical property check using thin layer signet method | |
| CN106323861A (en) | Method for evaluating polymerization performance of organic coating of color-coated sheet | |
| Ma et al. | In-situ study the corrosion degradation mechanism of tinplate in salty water by scanning electrochemical microscopy | |
| Kunst et al. | Corrosion mechanism suggested based on electrochemical analysis and SVET for uncoated tinplate and post coated with a hybrid film | |
| CN109579746A (en) | A method of detection cold rolling electroplating tin steel plate passivating film |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |