CN87214788U - Synchronous measuring equipment for corrosion and abrasion - Google Patents
Synchronous measuring equipment for corrosion and abrasion Download PDFInfo
- Publication number
- CN87214788U CN87214788U CN198787214788U CN87214788U CN87214788U CN 87214788 U CN87214788 U CN 87214788U CN 198787214788 U CN198787214788 U CN 198787214788U CN 87214788 U CN87214788 U CN 87214788U CN 87214788 U CN87214788 U CN 87214788U
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- electrode
- salt bridge
- corrosion
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- potentiostat
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Abstract
The utility model discloses synchronous measuring equipment for corrosion and abrasion for a metal sample. The utility model is characterized in that a study electrode which is used for fixing a metal sample is made into a hollow rotating shaft which can rotated and be used for measuring a wearing rate; a metal sample electric potential extractor is arranged to measure a corrosion rate; a calomel reference electrode is arranged in a salt bridge in order to prevent the blockage by mud and sand pulp or the break of the calomel reference electrode; an auxiliary electrode is composed of an L-shaped hollow tube, a sealing ring, a platinum sheet and a platinum wire. The measuring error is (+/-) 5%. The utility model can be used for the study and sorting test of the corrosive wear mechanism of metal components such as devices, tubes, pumps, valves, etc.
Description
The utility model relates to a kind of chemistry of metal material or measurement mechanism of physical property studied, and is specifically to belong to a kind of metallic material corrosion and wearing and tearing synchronous measuring apparatus.
In some commercial production, exist corrosion and the wear phenomenon of silt particle slurry to pipeline, pump and valve.Existing metallic material corrosion and wear measurement device all can only the independent measurement rate of wear or corrosion speeds, and can not the synchro measure rate of wear and corrosion speed.A kind of metal abrasion test device is disclosed as the clear 59-77338 of day disclosure special permission communique JP, it is the sample of inserting the band turning axle in filling the container of mortar, sample rotates in mortar and is worn, according to the weight difference of sample before and after test, the degree of wear of evaluating material.In this device fixedly the solid turning axle of sample do not rotate the current potential ejector of sample, so the corrosion speed of energy measurement sample not.And for example U.S. Pat-3250689 discloses a kind of metal erosion measurement mechanism, and it is that research electrode, auxiliary electrode and calomel reference electrode are placed the container that fills etchant solution jointly, measures corrosion of metal speed with electrochemical method.Test button as the research electrode in this device can not rotate, and obviously it can not be used to measure the rate of wear.Calomel reference electrode is exposed in the etchant solution, and this directly exposed mode is not suitable in the corrosivity mortar, because calomel reference electrode is stopped up by the silt particle slurry easily or broken like this.So this device can not be used for the synchro measure of the corrosion and the wearing and tearing of test button.
Task of the present utility model provide a kind of in the corrosivity mortar that is flowing test button corrosion and wearing and tearing synchronous measuring apparatus.
Task of the present utility model is achieved in that makes hollow rotary shaft with the research electrode of fixing metal sample, makes it to rotate to measure the rate of wear, and the current potential ejector that test button is arranged again is to measure corrosion speed; Calomel reference electrode is placed in the salt bridge, blocked or broken to prevent calomel reference electrode from directly contacting with the silt particle slurry of rotation.Specifically, measurement mechanism is made up of research electrode, auxiliary electrode, contrast electrode-salt bridge, container, baffle plate, water bath with thermostatic control and potentiostat.Said research electrode is to be made of hollow rotary shaft, test button, lead, copper ring and brush, test button links to each other with copper ring by the lead of hollow rotary shaft endoporus, copper ring closely contacts with brush, the lead of drawing of brush is connected with potentiostat research turn-knob, the turning axle top is provided with guide wheel, by the motor driven rotary; Auxiliary electrode is to be made of L shaped hollow tubular, hold-down ring, platinized platinum and platinum filament, the face exposure that platinized platinum is pressed on the transverse port of L shaped hollow tubular by hold-down ring sealing and makes platinized platinum is in the corrosivity mortar of container, the back side of platinized platinum is connected with an end of platinum filament, and the other end of platinum filament passes the interior aperture lead of L shaped hollow tubular and is connected with the auxiliary turn-knob of potentiostat; Contrast electrode-salt bridge is to be made of salt bridge, calomel reference electrode, and calomel reference electrode is placed on the inner chamber of salt bridge, fills paper pulp and saturated potassium chloride solution in the salt bridge, and the bottom of salt bridge has to drip chews.The extension line of calomel reference electrode is connected with the reference turn-knob of potentiostat.Hollow rotary shaft, L shaped hollow tubular, hold-down ring, salt bridge are made by insulating material corrosion-resistant, heatproof.
Below in conjunction with description of drawings embodiment of the present utility model:
Fig. 1 is the synoptic diagram of corrosion and wearing and tearing synchronous measuring apparatus.Research electrode 1 is by support 8, and auxiliary electrode 2, contrast electrode-salt bridge 3 vertically place in the container 4 that fills the corrosivity mortar by container cover, and container 4 places water bath with thermostatic control 6, is provided with 4～6 baffle plates 5 perpendicular to wall along its periphery in the container 4.
Fig. 2 is the structural representation of research electrode 1.The center pit that bolt 20 passes test button 19 is tightened in the bottom screw 18 of hollow rotary shaft 13, insert and be fastened with minor axis 21 in the last hole 17 of hollow rotary shaft 13, the top of minor axis 21 is provided with the guide wheel 10 that is driven by motor 11, order about test button 19 rotations by hollow rotary shaft 13, test button 19 links to each other with copper ring 15 by the lead 14 of hollow rotary shaft 13 endoporus, copper ring 15 closely contacts with brush 16, and the lead of drawing of brush 16 links to each other with the research turn-knob of potentiostat 9.
Fig. 3 is the structural representation of auxiliary electrode 2.Circular platinized platinum 25 is screwed on the transverse port 24 of L shaped hollow thread pipe 23 by 26 sealings of screw thread hold-down ring, and the face exposure that makes circular platinized platinum 25 is in mortar, one end points of platinum filament 22 is welded in the back side of circular platinized platinum 25, and the other end passes L shaped hollow thread pipe 23 endoporus and is connected with the auxiliary turn-knob of potentiostat 9 by lead.
Fig. 4 is the structural representation of contrast electrode-salt bridge 3.Calomel reference electrode 28 is put on the cavity top of salt bridge 27,30 rubber stopper 29 jam-packs are chewed with having glass drop in salt bridge 27 bottoms, paper pulp and saturated potassium chloride solution are housed in the salt bridge 27, and the lead of drawing of calomel reference electrode 28 is connected with the reference turn-knob of potentiostat 9.
The test button 19 of research electrode 1 is put into the bottom of container 4 central authorities that fill mortar, make test button 19 apart from 2～3 centimetres of container bottoms, a side of test button 19 is chewed 30 transverse horizontal with the glass drop of contrast electrode-salt bridge 3 and is aimed at, horizontal range is 2～3 millimeters each other, another side of test button 19 is aimed at the positive transverse horizontal of the circular platinized platinum 25 of auxiliary electrode 2, and horizontal range is 10～20 millimeters each other.
Hollow rotary shaft 13, bolt 20, L shaped hollow thread pipe 23, screw thread hold-down ring 26, salt bridge 27, baffle plate 5 are all made with insulating material such as engineering plastics, poly-inkstone or teflon corrosion-resistant, heatproof, container 4 can be selected glass material for use, and water bath with thermostatic control, calomel reference electrode and potentiostat are the commercial goods.
The utility model is applicable to acid, alkali, the salt solusion of variable concentrations.Silt content can be 0.05～20%(percentage by weight in the solution), the silt particle granularity is-400 orders～-80 orders, mortar temperature is controlled at below 80 ℃, mortar reaches as high as 12 meter per seconds to the erosion speed speed of test button 19, the revolution of hollow rotary shaft 13 can be regulated by motor 11, the mortar that is stirred when test button 19 rotations is suspended state under the effect of baffle plate 5, therefore determine the erosion speed of mortar to test button 19 by the revolution of test button 19.During measurement the test button 19 that fixes is inserted in the mortar, hotwire 11, make test button 19 constant speed rotation certain hour under constant temperature, by weight difference and the electrochemical method corrosion and the erosion rate that simultaneously determine test button 19 of test button 19 before and after test:
Corrosion speed K=0.00328 (A)/(N ρ) icor
A is the metallic atom amount
N is a metallic valence
ρ is a density metal (gram per centimeter
3)
Icor be the metal erosion current density (microampere/centimetre
2)
K is metal erosion speed (millimeter/year)
Erosion rate E=8.76 (W
0-W
1)/(st ρ)
W
0, W
1Be respectively the weight (gram) of test button abrasion front and back
S is that test button is denuded area (rice
2)
T be test button be subjected to the abrasion time (hour)
ρ is a test button density (gram per centimeter
3)
E is test button erosion rate (millimeter/year)
Abrasive wear speed=erosion rate-corrosion speed.
The utility model is simple in structure, easy to operate, measuring error is ± 5%, for example sample is a cobalt-base alloys, mortar is the 4%(weight percent concentration of pH=7.5) sodium chloride solution, wherein emergy-80 order accounts for the 20%(percentage by weight), mortar temperature is 70 ± 1 ℃, mortar erosion speed is 8 meter per seconds, test period 3 hours, and measurement result is as follows:
| Before the test heavy (gram) | Test back heavy (gram) | Weight difference (gram) | Erosion rate (millimeter/year) | Corrosion electric current density (microampere/centimetre 2） |
| 97.6925 | 97.6643 | 0.0282 | 2.24 | 1.2×10 -2 |
| Corrosion speed (millimeter/year) | The rate of wear (millimeter/year) | Corrosion (%) | Wearing and tearing (%) |
| 1.2 | 1.04 | 53.6 | 46.4 |
The utility model can be widely used in industrial sectors such as oil, chemical industry, mine, uranium mill to metallic material corrosion Study on Wear and selection tests such as equipment, pipeline, pump, valves to the corrosion and the wearing and tearing synchro measure of test button in the corrosivity mortar that is flowing.
Claims (1)
1, a kind of corrosion and wearing and tearing synchronous measuring apparatus, form by research electrode 1, auxiliary electrode 2, contrast electrode-salt bridge 3, the container 4, water bath with thermostatic control 6 and the potentiostat 9 that have baffle plate 5 and fill corrosivity mortar solution, research electrode 1, auxiliary electrode 2, contrast electrode-salt bridge 3 place jointly container 4 and respectively with the research turn-knob of potentiostat, auxiliary turn-knob, the reference turn-knob links to each other, container 4 places water bath with thermostatic control 6, it is characterized in that:
(1) said research electrode 1 is to be made of hollow rotary shaft 13, test button 19, copper ring 15, brush 16 and lead 14, test button 19 links to each other with copper ring 15 by the lead 14 of hollow rotary shaft 13 endoporus, copper ring 15 closely contacts with brush 16, the extension line of brush 16 is connected with the research turn-knob of potentiostat 9, hollow rotary shaft 13 tops are provided with guide wheel 10, and guide wheel 10 links to each other with motor 11;
(2) said auxiliary electrode 2 is to be made of L shaped hollow tubular 23, hold-down ring 26, platinized platinum 25 and platinum filament 22, platinized platinum 25 is pressed on the transverse port 24 of L shaped hollow tubular 23 by hold-down ring 26 sealings, the back side of platinized platinum 25 is connected with an end of platinum filament 22, and the other end of platinum filament 22 passes L type hollow tubular 23 endoporus and is connected with the auxiliary turn-knob of potentiostat 9;
(3) said contrast electrode-salt bridge 3 is to be made of salt bridge 27, calomel reference electrode 28, calomel reference electrode 28 places the inner chamber of salt bridge 27, fill paper pulp and saturated potassium chloride solution in the salt bridge 27, the bottom of salt bridge 27 has to drip chews 30, and the extension line of calomel reference electrode 28 is connected with the reference turn-knob of potentiostat 9;
Hollow rotary shaft 13, L shaped hollow tubular 23, hold-down ring 26, salt bridge 27 are made by the heatproof corrosion-resistant insulation material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN198787214788U CN87214788U (en) | 1987-11-02 | 1987-11-02 | Synchronous measuring equipment for corrosion and abrasion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN198787214788U CN87214788U (en) | 1987-11-02 | 1987-11-02 | Synchronous measuring equipment for corrosion and abrasion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN87214788U true CN87214788U (en) | 1988-06-08 |
Family
ID=4829036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN198787214788U Withdrawn CN87214788U (en) | 1987-11-02 | 1987-11-02 | Synchronous measuring equipment for corrosion and abrasion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN87214788U (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101149321B (en) * | 2007-09-17 | 2010-06-09 | 武汉材料保护研究所 | Liquid-solid two-phase current scouring and cavitation composite abrasion test machine |
| CN101477010B (en) * | 2009-01-09 | 2011-02-16 | 北京科技大学 | Corrosion product film wear property and corrosion electro-chemistry test device |
| CN102095656A (en) * | 2010-12-24 | 2011-06-15 | 上海化工研究院 | Equipment used for testing abrasion caused by mortar grinder |
| CN102937569A (en) * | 2011-12-27 | 2013-02-20 | 北京化工大学 | Stress corrosion test apparatus |
| CN103674533A (en) * | 2013-12-09 | 2014-03-26 | 淮南矿业(集团)有限责任公司 | Mining mechanical abrasion detection device |
| CN104634389A (en) * | 2015-01-22 | 2015-05-20 | 晋州市水泵厂 | Submersible pump motor testing method and device with self-water feeding pressurization system |
| CN104914038A (en) * | 2015-07-07 | 2015-09-16 | 河南理工大学 | Rotary type erosion wearing electrochemical corrosion testing device |
| CN106198192A (en) * | 2016-08-18 | 2016-12-07 | 河南理工大学 | The sample angle of attack of a kind of rotary erosion abrasion test device adjusts assembly and method |
| CN108871990A (en) * | 2018-07-26 | 2018-11-23 | 暨南大学 | A kind of corrosion three-body abrasive wear testing machine that can be used under different temperatures and humidity |
| CN114324542A (en) * | 2021-12-03 | 2022-04-12 | 山东核电有限公司 | Intermittent immersion rotary corrosion experimental device |
-
1987
- 1987-11-02 CN CN198787214788U patent/CN87214788U/en not_active Withdrawn
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101149321B (en) * | 2007-09-17 | 2010-06-09 | 武汉材料保护研究所 | Liquid-solid two-phase current scouring and cavitation composite abrasion test machine |
| CN101477010B (en) * | 2009-01-09 | 2011-02-16 | 北京科技大学 | Corrosion product film wear property and corrosion electro-chemistry test device |
| CN102095656A (en) * | 2010-12-24 | 2011-06-15 | 上海化工研究院 | Equipment used for testing abrasion caused by mortar grinder |
| CN102937569A (en) * | 2011-12-27 | 2013-02-20 | 北京化工大学 | Stress corrosion test apparatus |
| CN103674533A (en) * | 2013-12-09 | 2014-03-26 | 淮南矿业(集团)有限责任公司 | Mining mechanical abrasion detection device |
| CN104634389A (en) * | 2015-01-22 | 2015-05-20 | 晋州市水泵厂 | Submersible pump motor testing method and device with self-water feeding pressurization system |
| CN104914038A (en) * | 2015-07-07 | 2015-09-16 | 河南理工大学 | Rotary type erosion wearing electrochemical corrosion testing device |
| CN104914038B (en) * | 2015-07-07 | 2017-10-27 | 河南理工大学 | A kind of rotary erosion abrasion electrochemical corrosion test device |
| CN106198192A (en) * | 2016-08-18 | 2016-12-07 | 河南理工大学 | The sample angle of attack of a kind of rotary erosion abrasion test device adjusts assembly and method |
| CN108871990A (en) * | 2018-07-26 | 2018-11-23 | 暨南大学 | A kind of corrosion three-body abrasive wear testing machine that can be used under different temperatures and humidity |
| CN114324542A (en) * | 2021-12-03 | 2022-04-12 | 山东核电有限公司 | Intermittent immersion rotary corrosion experimental device |
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| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |