CN1474174A - Detecting sysytem for metal corrosion resistance - Google Patents
Detecting sysytem for metal corrosion resistance Download PDFInfo
- Publication number
- CN1474174A CN1474174A CNA021291306A CN02129130A CN1474174A CN 1474174 A CN1474174 A CN 1474174A CN A021291306 A CNA021291306 A CN A021291306A CN 02129130 A CN02129130 A CN 02129130A CN 1474174 A CN1474174 A CN 1474174A
- Authority
- CN
- China
- Prior art keywords
- metal
- electrode
- electrolyte solution
- corrosion resistance
- sysytem
- 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.)
- Granted
Links
Landscapes
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
The detection system of metal corrosion resistance includes container holding electrolyte solution; metal sample sheet with part soaked inside the solution; corresponding metal electrode with part soaked inside the solution and in certain interval to the metal sample sheet; DC power source with positive electrode and negative electrode connected to the metal sample sheet and the corresponding metal electrode separately; reference copper electrode with part soaked inside the solution and connected to the positive electrode of the DC power source; and conductivity test instrument with test electrode partially soaked into the solution. The beneficial effects of the present invention includes simple structure, convenient operation, low cost and quantitative detection of metal corrosion resistance.
Description
Technical field
The present invention relates to a kind of metallicity pick-up unit, particularly relate to a kind of detecting sysytem for metal corrosion resistance.
Background technology
As everyone knows, metal has the advantage of physical strength height and good processability, thereby is widely used in the manufacturing of mechanical part and electronic unit, but metal has the relatively poor shortcoming of decay resistance simultaneously.Therefore, the research that the researchist is being devoted to corrosion resistant metal always and is covering the corrosion-resistant diaphragm of one deck in the metal surface is to improve the decay resistance of metal.
In above-mentioned research, must relate to the detection method of metal corrosion-resisting.Metal corrosion-resisting detection method at present commonly used is: be 5% salt solution with sprayer in the surface sprinkling concentration of metal testing plate at first, the routine observation metal testing plate surface situation that is corroded is then measured the decay resistance of metal to be measured.
But the shortcoming of above-mentioned brine spray method is: test out of true, because can't represent the extent of corrosion of metal testing plate quantitatively, the influence of the examined personnel's of testing result subjective factor is bigger, is difficult to obtain accurate, objective testing result.
At present, can measure metal corrosion-resisting quantitatively though utilize some instrument (for example: DC potentiometer or electrochemical impedance spectroscope (EIS)), but these instrument price general charged costlinesses, operating personnel need have higher professional knowledge, thereby are difficult to popularize.
Need especially a kind of easy to operate, cheap and can detect the pick-up unit of metal corrosion-resisting quantitatively in the actual life.For example, have in the household appliances of heat exchanger at air conditioner or refrigerator etc., heat radiator and cold coal pipe generally are in contact with one another, (material of heat radiator mainly is an aluminium because the two is made with different metal material, and the material of cold coal pipe mainly is a copper), the difference of potential difference (PD) will cause galvanic corrosion between the two, quicken two kinds of processes that material is corroded, be badly in need of a kind of suitable device quantitative measurement is carried out in this type of corrosion, and then find out solution.
Summary of the invention
Technical matters to be solved by this invention is, overcomes the shortcoming of prior art and device, and a kind of detecting sysytem for metal corrosion resistance of simple in structure, easy to operate, cheap quantitative measurement technology corrosion resistance is provided.
In order to solve the problems of the technologies described above, the technical scheme that detecting sysytem for metal corrosion resistance of the present invention adopts is: detecting sysytem for metal corrosion resistance comprises: inside fills the container of electrolyte solution; Part immerses the metal testing plate of described container internal electrolyte solution; The corresponding metal electrode that part immerses described container internal electrolyte solution and keeps certain distance to be provided with in opposite directions with metal testing plate; The direct supply that its positive and negative electrode is connected with corresponding metal electrode with metal testing plate respectively; The benchmark copper electrode that part immerses electrolyte solution and is connected with described dc power anode; Its test electrode partly immerses the conductivity measurement of described container internal electrolyte solution.
Described electrolyte solution is that concentration is 0.05～10% salt (NaCl) water.
The material of described metal testing plate is aluminium (Al), and the material of described corresponding metal electrode is copper (Cu).
The electrolyte solution that described benchmark copper electrode immerses is the electrolyte solution in the described container that drinks up by a kapillary.
The principle of work of detecting sysytem for metal corrosion resistance of the present invention is: connect direct supply, produce electric current in the electrolytic solution between metal testing plate and the corresponding metal electrode, metal testing plate and the corresponding surface of metal electrode speed that is corroded is aggravated, constantly there is metallic ion to enter electrolytic solution, makes the conductivity of electrolytic solution increase.Regularly detect the conductivity of electrolytic solution by conductivity measurement, draw out electrolytic conductivity curve over time, can detect the corrosion resistance of metal testing plate quantitatively.
The invention has the beneficial effects as follows: simple in structure, easy to operate, cheap, can detect the decay resistance of metal quantitatively.
Description of drawings
Fig. 1 is the structural representation of detecting sysytem for metal corrosion resistance embodiment of the present invention;
Fig. 2 is the conductivity curve over time of electrolytic solution in detecting two kinds of metal testing plate processes.
Among the figure:
100: electrolytic solution 101: container
102: metal testing plate 103: corresponding metal electrode
104: direct supply 105: conductance measurement
107: benchmark copper electrode 108: kapillary
Embodiment
Below in conjunction with the drawings and specific embodiments detecting sysytem for metal corrosion resistance of the present invention is described in further detail:
As shown in Figure 1, this detecting sysytem for metal corrosion resistance comprises: inside fills the container 101 of electrolyte solution 100; Part immerses the metal testing plate 102 of described container internal electrolyte solution; The corresponding metal electrode 103 that part immerses described container internal electrolyte solution and keeps certain distance to be provided with in opposite directions with metal testing plate 102; The direct supply 104 that its positive and negative electrode is connected with corresponding metal electrode with metal testing plate respectively; The benchmark copper electrode 107 that part immerses electrolyte solution and is connected with described dc power anode; Its test electrode partly immerses the conductivity measurement 105 of described container internal electrolyte solution.
In this embodiment, described electrolyte solution 100 is that concentration is 0.05～10% salt (NaCl) water.
The material of described metal testing plate 102 is aluminium (Al), and the material of described corresponding metal electrode 103 is copper (Cu).
The electrolyte solution that described benchmark copper electrode immerses is the electrolyte solution in the described container that drinks up by a kapillary 108.
The course of work to present embodiment is illustrated below: connect direct supply 104, produce electric current in the electrolytic solution 100 between aluminium test piece 102 and the corresponding copper electrode 103, aluminium test piece 102 and the corresponding copper electrode 103 surfaces speed that is corroded is aggravated, constantly there is metallic ion to enter electrolytic solution 100, makes the conductivity of electrolytic solution 100 increase.Regularly detect the conductivity of electrolytic solution 100 by conductivity measurement 105, draw out electrolytic conductivity curve over time, can detect the corrosion resistance of aluminium test piece 102 quantitatively.In the testing process, regulate direct supply, make that aluminium test piece 102 is 500mmv-200mv with voltage between the corresponding copper electrode 103.
Fig. 2 shows under similarity condition the conductivity curve over time that detects electrolytic solution in two kinds of metal testing plate processes, testing result when the testing result when wherein curve A represents that metal testing plate is naked aluminium flake, curve B represent that metal testing plate is the surface through the aluminium flake of corrosion-resistance treatment.Contrast two curves as can be seen, the conductivity of electrolytic solution was pushed the speed comparatively fast when metal testing plate was naked aluminium flake, metal testing plate for the surface during through the aluminium flake of corrosion-resistance treatment conductivity push the speed slowlyer, illustrate that the corrosion resistance of the aluminium flake of surface process corrosion-resistance treatment is better than naked aluminium flake greatly.
Claims (4)
1. detecting sysytem for metal corrosion resistance, it is characterized in that: comprising: inside fills the container (101) of electrolyte solution (100); Part immerses the metal testing plate (102) of described container internal electrolyte solution; The corresponding metal electrode (103) that part immerses described container internal electrolyte solution and keeps certain distance to be provided with in opposite directions with metal testing plate (102); The direct supply (104) that its positive and negative electrode is connected with corresponding metal electrode with metal testing plate respectively; The benchmark copper electrode (107) that part immerses electrolyte solution and is connected with described dc power anode; Its test electrode partly immerses the conductivity measurement (105) of described container internal electrolyte solution.
2. detecting sysytem for metal corrosion resistance according to claim 1 is characterized in that: described electrolyte solution (100) is that concentration is 0.05～10% salt (NaCl) water.
3. detecting sysytem for metal corrosion resistance according to claim 1 is characterized in that: the material of described metal testing plate (102) is aluminium (Al), and the material of described corresponding metal electrode (103) is copper (Cu).
4. detecting sysytem for metal corrosion resistance according to claim 1 is characterized in that: the electrolyte solution that described benchmark copper electrode immerses is the interior electrolyte solution of described container that drinks up by a kapillary (108).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02129130 CN1198132C (en) | 2002-08-19 | 2002-08-19 | Detecting sysytem for metal corrosion resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02129130 CN1198132C (en) | 2002-08-19 | 2002-08-19 | Detecting sysytem for metal corrosion resistance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1474174A true CN1474174A (en) | 2004-02-11 |
| CN1198132C CN1198132C (en) | 2005-04-20 |
Family
ID=34143997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02129130 Expired - Fee Related CN1198132C (en) | 2002-08-19 | 2002-08-19 | Detecting sysytem for metal corrosion resistance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1198132C (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101377461B (en) * | 2007-08-28 | 2011-07-13 | 宝山钢铁股份有限公司 | Apparatus and method for measuring welding tube corrosion under stress condition |
| CN102980845A (en) * | 2012-12-10 | 2013-03-20 | 奥瑞金包装股份有限公司 | Method for accelerating color printing iron corrosion by using electrochemical cathodic polarization |
| CN104849199A (en) * | 2015-05-20 | 2015-08-19 | 广东美的暖通设备有限公司 | Metal pipe pitting-resistant property evaluation device and metal pipe pitting-resistant property evaluation method |
| CN106468651A (en) * | 2016-09-22 | 2017-03-01 | 国网山东省电力公司电力科学研究院 | A kind of atmospheric corrosiveness on-line monitoring system and its method |
| CN107941684A (en) * | 2017-12-20 | 2018-04-20 | 佛山科学技术学院 | A kind of easy metal material corrosion resistance test infuser device |
| CN112669913A (en) * | 2020-12-18 | 2021-04-16 | 安徽工业大学 | Method for determining influence factor of active sulfide content on naphthenic acid corrosion rate |
-
2002
- 2002-08-19 CN CN 02129130 patent/CN1198132C/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101377461B (en) * | 2007-08-28 | 2011-07-13 | 宝山钢铁股份有限公司 | Apparatus and method for measuring welding tube corrosion under stress condition |
| CN102980845A (en) * | 2012-12-10 | 2013-03-20 | 奥瑞金包装股份有限公司 | Method for accelerating color printing iron corrosion by using electrochemical cathodic polarization |
| CN102980845B (en) * | 2012-12-10 | 2015-04-29 | 奥瑞金包装股份有限公司 | Method for accelerating color printing iron corrosion by using electrochemical cathodic polarization |
| CN104849199A (en) * | 2015-05-20 | 2015-08-19 | 广东美的暖通设备有限公司 | Metal pipe pitting-resistant property evaluation device and metal pipe pitting-resistant property evaluation method |
| CN106468651A (en) * | 2016-09-22 | 2017-03-01 | 国网山东省电力公司电力科学研究院 | A kind of atmospheric corrosiveness on-line monitoring system and its method |
| CN107941684A (en) * | 2017-12-20 | 2018-04-20 | 佛山科学技术学院 | A kind of easy metal material corrosion resistance test infuser device |
| CN112669913A (en) * | 2020-12-18 | 2021-04-16 | 安徽工业大学 | Method for determining influence factor of active sulfide content on naphthenic acid corrosion rate |
| CN112669913B (en) * | 2020-12-18 | 2024-02-09 | 安徽工业大学 | Method for determining influence factor of active sulfide content on naphthenic acid corrosion rate |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1198132C (en) | 2005-04-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109856037B (en) | Method for measuring long-term stability of metal bipolar plate | |
| CN103076381A (en) | Anodic stripping voltammetric mechanism-based online automatic monitoring system for heavy metal ions in water | |
| CN1198132C (en) | Detecting sysytem for metal corrosion resistance | |
| Liu et al. | A Study of Nafion‐Coated Bismuth‐Film Electrode for the Determination of Zinc, Lead, and Cadmium in Blood Samples | |
| CN112525815B (en) | High-throughput in-situ electrochemical testing device and testing method | |
| CN1198131C (en) | Metal corrosion-resisting testing device | |
| CN110160922B (en) | Detection method and detection system for content of chlorine salt particles in ocean atmosphere | |
| CN105319258B (en) | The measuring method of chromated oxide coating in a kind of electroplated chrome panel | |
| CN110361313B (en) | Electrochemical test method for quantitatively evaluating porosity of phosphating film | |
| CN1645099A (en) | Testing liquid and method for rapid testing chrome-plating layer corrosion-proof performance | |
| CN103344692A (en) | Method for detecting heavy metal ions in sewage | |
| CN201159727Y (en) | Electrolyzing device for tin plate sheet detection | |
| CN206892189U (en) | A kind of clamping device for testing solid electrolyte electrical conductivity | |
| CN111521645B (en) | Device for real-time on-line measurement of cathode and anode in zinc electrodeposition process | |
| CN101042352A (en) | Method for measuring trivalent chromium in electroplating chromium solution by visual and apparatus thereof | |
| TW200405002A (en) | Electrochemical analytical apparatus | |
| JP2004031256A (en) | Inspection method for polymer electrolyte fuel cell, and polymer electrolyte fuel cell by the method | |
| CN1657902A (en) | On-line monitoring method for failure state of metal and protection layer inter face | |
| TW201821786A (en) | Coating corrosion accelerating test method capable of shortening the test cycle by generating a special corrosion accelerating effect different from the corrosion factor reaction | |
| CN219777446U (en) | Metal corrosion resistance detection system | |
| CN217237689U (en) | Stainless steel material corrosion resistance identification test device | |
| JP2004265695A (en) | Separator for fuel cell | |
| CN220473520U (en) | Portable water quality monitoring device | |
| CN219104889U (en) | Automatic integrated water quality monitoring system | |
| CN105004774B (en) | The preparation method of modified electrode and the measure application of free copper ion in feed addictive Copper lysinate |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050420 |