CN202177558U - High-temperature high-voltage normal position scratching and corrosive abrasion test device - Google Patents
High-temperature high-voltage normal position scratching and corrosive abrasion test device Download PDFInfo
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- CN202177558U CN202177558U CN2011202623827U CN201120262382U CN202177558U CN 202177558 U CN202177558 U CN 202177558U CN 2011202623827 U CN2011202623827 U CN 2011202623827U CN 201120262382 U CN201120262382 U CN 201120262382U CN 202177558 U CN202177558 U CN 202177558U
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- 238000012360 testing method Methods 0.000 title claims abstract description 36
- 238000006748 scratching Methods 0.000 title abstract description 10
- 230000002393 scratching effect Effects 0.000 title abstract description 10
- 238000005299 abrasion Methods 0.000 title abstract 6
- 238000009413 insulation Methods 0.000 claims abstract description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 48
- 239000010959 steel Substances 0.000 claims description 48
- 238000010438 heat treatment Methods 0.000 claims description 43
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 12
- 239000004809 Teflon Substances 0.000 claims description 10
- 229920006362 Teflon® Polymers 0.000 claims description 10
- 238000001816 cooling Methods 0.000 claims description 8
- 239000012071 phase Substances 0.000 claims description 8
- 239000000498 cooling water Substances 0.000 claims description 7
- 239000007791 liquid phase Substances 0.000 claims description 7
- 229910001220 stainless steel Inorganic materials 0.000 claims description 7
- 230000033001 locomotion Effects 0.000 claims description 6
- 229910052697 platinum Inorganic materials 0.000 claims description 6
- 239000002826 coolant Substances 0.000 claims description 5
- 230000001105 regulatory effect Effects 0.000 claims description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 4
- 230000011218 segmentation Effects 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 13
- 238000011160 research Methods 0.000 abstract description 3
- 238000000605 extraction Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 12
- 238000002161 passivation Methods 0.000 description 10
- 239000000463 material Substances 0.000 description 6
- 238000005260 corrosion Methods 0.000 description 5
- 230000007797 corrosion Effects 0.000 description 5
- 230000003542 behavioural effect Effects 0.000 description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 241000662429 Fenerbahce Species 0.000 description 1
- 229910021607 Silver chloride Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- ZADPBFCGQRWHPN-UHFFFAOYSA-N boronic acid Chemical compound OBO ZADPBFCGQRWHPN-UHFFFAOYSA-N 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000009351 contact transmission Effects 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
- 230000005347 demagnetization Effects 0.000 description 1
- 238000006392 deoxygenation reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000009183 running Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- HKZLPVFGJNLROG-UHFFFAOYSA-M silver monochloride Chemical compound [Cl-].[Ag+] HKZLPVFGJNLROG-UHFFFAOYSA-M 0.000 description 1
- 230000005619 thermoelectricity Effects 0.000 description 1
- 230000000699 topical effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model relates to a scratching and corrosive abrasion test device, in particular to a high-temperature high-voltage normal position scratching and corrosive abrasion test device, which solves the problems in the prior art of difficulty in achievement of normal position once scratching and reciprocating multi-time corrosive abrasion in high-temperature high-voltage environment, insulation of samples, extraction of signal lines and the like. The device is provided with a frequency converter, a motor, an autoclave, a control box, a double-column fixing support, a moving shaft, a scratching head and the like. By means of the device, research of normal position once scratching and reciprocating multi-time corrosive abrasion on the surfaces of the samples in high-temperature high-voltage environment can be achieved, and the device can assist an electrochemical workstation to detect signals in damage and repassivation of sample surface films in the scratching and corrosive abrasion process through a high-temperature high-voltage reference electrode and an auxiliary electrode working in high temperature and high voltage which are arranged on the autoclave.
Description
Technical field
The utility model relates to scuffing and corrosive wear test unit, is specially a kind of HTHP original position and scratches and the corrosive wear test unit.
Background technology
Rely on that the surface forms fine and close passivating film and corrosion resistant alloy with corrosion resistance; When the passivating film on Where topical surface exposes unsalted surface because of physical disturbance; Then can aggravate the generation of unsalted surface corrosion; Thereby form new passivating film in this position, and the generation of passivation again relies on the acting in conjunction of material itself and environmental factor.Therefore, the again passivation ability of metal material in specific environment has vital role for the decay resistance of exosyndrome material.
At present, material again the sign of passivation ability mainly realize that through scratching the electrode method temperature and pressure mainly concentrates on room temperature, normal pressure.The also normal pressures that are limited to of the research of corrosive wear aspect in the solution more.Yet, for the corrosion-resistant material that uses in the high temperature and high pressure environments such as nuclear power and thermoelectricity, its again the in-situ characterization of passivation ability and corrosive wear behavior still lack effective means.Its main cause is exactly that the HTHP original position scratches and corrosive wear test unit complicacy; To realize that not only the original position of material surface passivating film under the HTHP destroys, also to consider sample and canister under the HTHP insulation and signal wire a series of problems such as draw.
The utility model content
The purpose of the utility model is to provide a kind of HTHP original position to scratch and the corrosive wear test unit, solves in the prior art under the HTHP that original position scratches and corrosive wear is difficult to realize, problem such as insulation difficulty in the high temperature and high pressure environment.
The technical scheme of the utility model is following:
A kind of HTHP original position scratches and the corrosive wear test unit; This device is provided with: hot operation electrode, high temperature auxiliary electrode, high temperature contrast electrode, high pressure kettle cover, autoclave body, heating furnace, support, stroke head, interior magnet steel, motor, outer steel, and concrete structure is following:
Autoclave body and high pressure kettle cover constitute autoclave, and the high pressure kettle cover is arranged on the autoclave body, and autoclave body is connected with the high pressure kettle cover; Autoclave covers hot operation/auxiliary electrode seat and high temperature contrast electrode is set; Auxiliary electrode is set in the autoclave body, draws head, working electrode; Auxiliary electrode and working electrode pass hot operation/auxiliary electrode seat through lead respectively, and the high temperature contrast electrode catheter of high temperature contrast electrode extends in the autoclave body;
Interior magnet steel and outer steel are inside and outside to be provided with, non-direct contact between interior magnet steel and the outer steel, and motor connects outer steel through eccentric wheel connecting rod mechanism, and interior magnet steel bottom is connected with the axle that moves up and down; Magnet steel in axle one end that moves up and down connects, the other end passes the base in the autoclave body, is equipped with on the axle that moves up and down to draw head, and sample fixing is arranged on the base;
The arranged outside heating furnace of autoclave body, support are two column supports, and two columns on the support: column I and column II are set in parallel in the both sides of high pressure kettle cover, autoclave body, heating furnace; Slide block II, high pressure kettle cover fixed block are set on the column I; Slide block I, high pressure kettle cover fixed block, motor fixed block are set on the column II, and slide block I is connected with heating furnace, and slide block II is connected with autoclave body; High pressure kettle cover fixed block, high pressure kettle cover fixed block are symmetrical set, and are connected in the both sides of high pressure kettle cover.
Described HTHP original position scratches and the corrosive wear test unit; Also comprise control box; Frequency converter switch, heating power supply switch, heating voltage regulator, pressure display unit, temperature controller and frequency converter are set in the control box; The frequency converter switch is connected with frequency converter, and frequency converter connects motor through lead; The heating power supply switch is connected with the heating voltage regulator; The heating voltage regulator is connected with temperature controller; Pressure display unit and temperature controller are connected to internal relay, and internal relay connects stove silk, formation overtemperature outage heating arrangement and the superpressure outage heating arrangement of heating furnace through lead.
Described HTHP original position scratches and the corrosive wear test unit; Adopt the governor motion of nut screw between each slide block and the column; The top of column I and column II is provided with the hand-operated lifting dish, through regulating the hand-operated lifting dish slide block I and slide block II is moved up and down along two columns respectively.
Described HTHP original position scratches and the corrosive wear test unit; Interior magnet steel outside surface is welded with one deck stainless steel; It is lubricated that interior magnet steel, outer steel upper and lower side are equipped with pottery, and pottery is housed in the centre hole of base, and base is lubricated through pottery with the lower part of the axle that moves up and down.
Described HTHP original position scratches and the corrosive wear test unit; A segmentation that moves up and down connects; Move up and down the axle the axle sleeve outside be connected with cooling jacket, cooling water inlet is connected to coolant outlet through high temperature contrast electrode, cooling jacket and hot operation/auxiliary electrode seat successively through pipeline.
Described HTHP original position scratches and the corrosive wear test unit; Autoclave covers and is fitted with the autoclave catheter, on the autoclave catheter liquid phase valve is housed, and autoclave gas phase mouth divides three the tunnel; Connect tensimeter, safety valve, pressure transducer respectively, on autoclave gas phase mouth, be provided with gas valve.
Described HTHP original position scratches and the corrosive wear test unit; Auxiliary electrode is with the teflon heat-shrink tube through the outside platinum filament is welded in the platinized platinum back as tracerse point, and working electrode is welded on the test button as tracerse point through pure nickel wire or the stainless steel wire that the outside is with the teflon heat-shrink tube; Four holes are arranged in hot operation/auxiliary electrode seat, and lead on the auxiliary electrode and the lead on the working electrode are drawn from hot operation/auxiliary electrode seat.
Described HTHP original position scratches and the corrosive wear test unit; Also be provided with electrochemical workstation, the wire clamp of the working electrode on the electrochemical workstation, auxiliary electrode and contrast electrode is connected with hot operation electrode cable, high temperature auxiliary electrode lead and high temperature contrast electrode lead respectively.
Described HTHP original position scratches and the corrosive wear test unit, has the base fixed bolt hole on the base, and bolt covers in autoclave through base fixed bolt hole firm banking.
Described HTHP original position scratches and the corrosive wear test unit; Draw back of head and be provided with spring; Drawing a side setting stroke set bolt; Sample is fixed in the sample fixing, is provided with the sample fastening bolt on sample fixing at the sample back, adopts insulation system between the device of sample and fixing sample.
The beneficial effect of the utility model is:
1, the utility model device can realize that the single of sample original position under HTHP scratches and the research of corrosive wear back and forth; And through make insulation between sample and device, utilize the HTHP contrast electrode be installed on the autoclave will scratch with HTHP work, auxiliary electrode cooperation electrochemical workstation or the corrosive wear process in the sample surface film come out by being corrupted to again the input of this process of passivation.
2, the utility model is accurately controlled motor speed through frequency converter, and then control internal-external magnetic steel and the movement velocity of drawing head, has the high characteristics of control accuracy.
3, the utility model is realized the reciprocating stroke of internal-external magnetic steel through the distance that the adjusting eccentric wheel connecting rod mechanism departs from the motor center rotating shaft.
4, the utility model is through being provided with spring drawing a back of head, can control the dynamics size when drawing head and streaking specimen surface through regulating the distance of drawing between head and the sample, and guarantee to draw the constant pressure of head when streaking specimen surface.
5, the utility model can produce the cut of different in width and different depth through changing drawing head and regulating the distance of drawing between head and sample of different angles.
6, pass through on-mechanical Contact Transmission mode between the utility model internal-external magnetic steel, solved the problem of motive seal effectively, have safety, characteristics of high efficiency.
7, the axle of drawing in the utility model connects through segmentation, is easy to dismounting and maintenance.
8, overtemperature cuts off the power supply automatically and superpressure is cut off the power supply automatically through being provided with respectively at control section, and is more safe and reliable when making this device busy.
Description of drawings
Fig. 1 scratches and corrosive wear test unit structural representation for the HTHP original position.
Among the figure, 1 coolant outlet; 2 hot operations/auxiliary electrode seat; 3 liquid phase valves; 4 high pressure kettle covers; 5 autoclave bodies; 6 heating furnaces; 7 stove silks; 8 supports; 9 auxiliary electrodes; 10 wimet are drawn head; 11 working electrodes; 12 frequency converter switches; 13 heating power supply switches; 14 heating voltage regulators; 15 pressure display units; 16 temperature controllers; 17 frequency converters; 18 gas valves; 19 cooling water inlets; 20 high temperature contrast electrodes; 21 tensimeters; 22 safety valve; 23 hand-operated lifting dishes; 24 pressure transducers; Magnet steel in 25; 26 motors; 27 outer steels; 28 control boxs; 29 sample fixing; 30 axle sleeves; 31 axles that move up and down; 32 cooling jackets; 33 bases; 34 autoclave catheters; 35 high temperature contrast electrode catheters; 36 column I; 37 column II; 38 slide block I; 39 slide block II; 40 high pressure kettle cover fixed blocks; 41 high pressure kettle cover fixed blocks; 42 motor fixed blocks; 43 autoclave gas phase mouths.
Fig. 2 is Fig. 1 mesohigh kettle inner structure synoptic diagram.Among the figure, 5 autoclave bodies; 29 sample fixing; 31 axles that move up and down; 33 bases; 44 samples; 45 strokes of set bolts; 46 base fixed bolt holes; 47 springs; 48 teflon grooves; 49 sample fastening bolts.
Embodiment
As shown in Figure 1; The utility model HTHP original position scratches and the corrosive wear test unit is provided with: coolant outlet 1, hot operation/auxiliary electrode seat 2, liquid phase valve 3, high pressure kettle cover 4, autoclave body 5, heating furnace 6, stove silk 7, support 8, auxiliary electrode 9, wimet draw 10, working electrode 11, frequency converter switch 12, heating power supply switch 13, heating voltage regulator 14, pressure display unit 15, temperature controller 16, frequency converter 17, gas valve 18, cooling water inlet 19, high temperature contrast electrode 20, tensimeter 21, safety valve 22, hand-operated lifting dish 23, pressure transducer 24, interior magnet steel 25, motor 26, outer steel 27 and control box 28 etc., and concrete structure is following:
Autoclave is made up of autoclave body 5 and high pressure kettle cover 4, and high pressure kettle cover 4 is arranged on the autoclave body 5, and autoclave body 5 and high pressure kettle cover 4 are connected through bolt.Hot operation/auxiliary electrode seat 2 and high temperature contrast electrode 20 is set on the high pressure kettle cover 4; Be provided with in the autoclave body 5 that auxiliary electrode 9, wimet draw 10, working electrode 11; Auxiliary electrode 9 passes hot operation/auxiliary electrode seat 2 through lead respectively with working electrode 11, and the high temperature contrast electrode catheter 35 of high temperature contrast electrode 20 extends in the autoclave body 5.
Interior magnet steel 25 and outer steel 27 inside and outside settings; The output terminal of frequency converter 17 connects motor 26; Through 26 runnings of frequency converter 17 control motors; Motor 26 connects outer steel 27 through eccentric wheel connecting rod mechanism, and motor 26 drives the eccentric wheel connecting rod mechanism motion, thereby realizes outer steel 27 moving up and down vertically.Interior magnet steel 25 outside surfaces are welded with one deck stainless steel; Magnet steel 25 contacts with the interior gas phase of autoclave in preventing, interior magnet steel 25 bottoms are connected with the axle 31 that moves up and down, and axle 31 outsides that move up and down are provided with cooling jacket 32; The axle 31 that moves up and down connects through segmentation, is easy to dismounting and maintenance.Move up and down axle 31 1 ends through magnet steel 25 in being threaded, and the other end passes the base 33 in the autoclave body 5, wimet is housed on the axle 31 that moves up and down draws 10, and sample fixing 29 is arranged on the base 33.
The utility model can depart from the distance of motor center rotating shaft through the adjusting eccentric wheel connecting rod mechanism, regulates internal-external magnetic steel and draws cephalomotor stroke.It is lubricated that interior magnet steel 25, outer steel 27 upper and lower sides are equipped with pottery, in base 33 center pits pottery is housed, be convenient to and the lower part of the axle 31 that moves up and down lubricated through pottery.Wimet draws 10, and to move up and down be to control non-direct contact between the internal-external magnetic steel through producing magnetic force between the internal-external magnetic steel.Axle 31 axle sleeve 30 outsides that move up and down are connected with cooling jacket 32, can prevent effectively that temperature is too high, the magnet steel demagnetization.Along with motor rotating band movable eccentric wheel moves up and down, 25 of interior magnet steel are along with outer steel 27 moves up and down in axle sleeve 30 inside in axle sleeve 30 outsides for outer steel 27.
Be fitted with autoclave catheter 34 on the high pressure kettle cover 4, liquid phase valve 3 is housed on the autoclave catheter 34, autoclave gas phase mouth 43 minutes three tunnel connects tensimeter 21, safety valve 22, pressure transducer 24 respectively, on autoclave gas phase mouth 43, is provided with gas valve 18.
The arranged outside heating furnace 6 of autoclave body 5 is provided with stove silk 7 in the heating furnace 6.Support 8 is two column supports; Two columns on the support 8: column I 36 and column II37 are set in parallel in the both sides of high pressure kettle cover 4, autoclave body 5, heating furnace 6; Slide block II39, high pressure kettle cover fixed block 40 are set on the column I 36; Slide block I 38, high pressure kettle cover fixed block 41, motor fixed block 42 are set on the column II37, and slide block I 38 is connected with heating furnace 6, and slide block II39 is connected with autoclave body 5; High pressure kettle cover fixed block 40, high pressure kettle cover fixed block 41 are symmetrical set, and are connected in the both sides of high pressure kettle cover 4.Adopt the governor motion of nut screw between each slide block and the column, the top of column I 36 and column II37 is provided with hand-operated lifting dish 23, can through regulating hand-operated lifting dish 23 slide block I 38 and slide block II39 moved up and down along two columns respectively.
In the utility model, the effect of hot operation/auxiliary electrode seat 2 is can the lead in the autoclave be drawn through this electrode tip holder, and guarantees insulation and sealing.The outside platinum filament that is with the teflon heat-shrink tube of wherein high temperature auxiliary electrode 9 usefulness is welded in platinized platinum as tracerse point and processes at the back, and pure nickel wire or stainless steel wire that one of hot operation electrode 11 usefulness outside is with the teflon heat-shrink tube are welded on the test button as tracerse point to be processed.Four holes are arranged in hot operation/auxiliary electrode seat 2, can simultaneously the lead on lead on the high temperature auxiliary electrode and the hot operation electrode be drawn, therefore be called hot operation/auxiliary electrode seat.High temperature contrast electrode 20 adopts the Ag/AgCl electrode.
In the utility model; Draw 10 etc. through frequency converter 17, motor 26, autoclave, control box 28, two column fixed support 8, kinematic axis, wimet; Can realize that under the HTHP specimen surface being carried out the scuffing of original position single studies with corrosive wear back and forth; And can cooperate electrochemical workstation through HTHP contrast electrode and HTHP work, the auxiliary electrode that is installed on the autoclave, sample surface film in scuffing or the corrosive wear process is come out by being corrupted to the input of this process of passivation again.
In the utility model, the wire clamp of the working electrode on the electrochemical workstation, auxiliary electrode and contrast electrode is connected with high temperature contrast electrode 20 leads with hot operation electrode 11 leads, high temperature auxiliary electrode 9 leads respectively gets final product.Through the program parameter of electrochemical workstation in the computing machine is set, can the input that produce in the corrosion process be come out.
As shown in Figure 2, base 33 is set in the autoclave body 5, have base fixed bolt hole 46 on the base 33, bolt is through base fixed bolt hole 46 firm bankings 33 on high pressure kettle cover 4 (Fig. 1).Wimet is drawn 10 rear portion and is provided with spring 47; Can through spring 47 regulate wimet draw 10 and sample 44 between contact normal stress; Draw 10 side at wimet a stroke set bolt 45 is set; Can through draw a set bolt 45 fixedly wimet draw 10 and sample 44 between distance, control wimet and draw 10 dynamics sizes when streaking sample 44 surfaces, and guarantee that wimet draws 10 and streaking sample 44 constant pressure when surperficial.The sample 44 that is of a size of 10mm * 10mm * 2mm is fixed in the sample fixing 29 (dovetail groove); Be provided with sample fastening bolt 49 on sample fixing 29 at sample 44 backs; Move up and down wimet and draw 10 and realize the scuffing on sample 44 surfaces, wimet is drawn 10 and can be adopted carbide alloy YG 8, aluminium oxide or adamas etc. to process.Between sample 44 and sample fixing 29, be provided with the Zr4 alloy groove that teflon groove 48 or surface have oxide film, insulate between the device of sample 44 and fixing sample.
The course of work of scuffing of the utility model HTHP original position and corrosive wear test unit is following:
1, with pure nickel wire or stainless steel wire outside surface cover one deck teflon heat-shrink tube, with after the heat gun pyrocondensation as wire bonds at specimen surface;
2, sample is installed in the sample fixing that is provided with teflon, and the bolt at sample back is tightened;
3, auxiliary electrode is installed in the autoclave, and maintenance and sample over against;
4, the high temperature contrast electrode is installed in the autoclave, and keeps the liquid outlet on high temperature contrast electrode top to open;
5, set converter parameter, regulate distance of drawing head and sample and the spring of drawing a back, guarantee to draw in the process of sliding, contacting of head, and can not touch auxiliary electrode with sample;
6, adding volume in the autoclave is the solution of autoclave volume 1/2 to 2/3; Solution can be selected according to actual working environment; As simulate the WS etc. of nuclear power station one loop boronic acid containing and lithium hydroxide, and guarantee that the lower end of sample, auxiliary electrode and high temperature contrast electrode catheter 35 can be immersed in the solution fully;
7, regulate the hand-operated lifting dish, autoclave body and heating furnace are adjusted to suitable height successively, tighten the bolt that autoclave covers;
8, in still, feed the nitrogen deoxygenation according to the experiment needs toward autoclave liquid phase mouth, from gas valve, discharge then.Degasification is closed liquid phase valve and gas valve after finishing successively;
9, the parameters such as upper pressure limit of the automatic outage of upper temperature limit, heat regulation voltage and superpressure of the target temperature on the design temperature controller, the automatic outage of overtemperature;
10, open cooling water switch, feed chilled water toward the cooling water inlet place;
11, open the heating power supply switch, treat high temperature contrast electrode liquid outlet continuous effluent after, liquid outlet place valve tightened closes;
12, passivation behavioral study and corrosive wear behavioral study again
1. passivation behavioral study again: treat that temperature reaches setting value, and after tending towards stability, utilize potentiostat to adding a constant potential on the sample, make it be in passive state according to the test needs.After stablizing 30min, open the frequency converter switch, make a stroke head streak specimen surface, surface passivated membrane destroys, and generates new passivating film fast.Single is closed the frequency converter switch after scratching and accomplishing.Gather and write down the electric current that causes in this process fast through electrochemical workstation and change, just can know the passivation ability again of material.
2. corrosive wear behavioral study: treat that temperature reaches setting value, and after tending towards stability, utilize potentiostat to adding a constant potential on the sample, make it be in passive state according to the test needs.After stablizing 30min, open the frequency converter switch, make a stroke head back and forth streak specimen surface, surface passivated membrane repeats to take place to destroy and passivation again.Gather and write down the electric current that causes in this process fast through electrochemical workstation and change, just can learn the corrosive wear information relevant with this process.
Claims (10)
1. a HTHP original position scratches and the corrosive wear test unit; It is characterized in that: this device is provided with: hot operation electrode, high temperature auxiliary electrode, high temperature contrast electrode, high pressure kettle cover, autoclave body, heating furnace, support, stroke head, interior magnet steel, motor, outer steel, and concrete structure is following:
Autoclave body and high pressure kettle cover constitute autoclave, and the high pressure kettle cover is arranged on the autoclave body, and autoclave body is connected with the high pressure kettle cover; Autoclave covers hot operation/auxiliary electrode seat and high temperature contrast electrode is set; Auxiliary electrode is set in the autoclave body, draws head, working electrode; Auxiliary electrode and working electrode pass hot operation/auxiliary electrode seat through lead respectively, and the high temperature contrast electrode catheter of high temperature contrast electrode extends in the autoclave body;
Interior magnet steel and outer steel are inside and outside to be provided with, non-direct contact between interior magnet steel and the outer steel, and motor connects outer steel through eccentric wheel connecting rod mechanism, and interior magnet steel bottom is connected with the axle that moves up and down; Magnet steel in axle one end that moves up and down connects, the other end passes the base in the autoclave body, is equipped with on the axle that moves up and down to draw head, and sample fixing is arranged on the base;
The arranged outside heating furnace of autoclave body, support are two column supports, and two columns on the support: column I and column II are set in parallel in the both sides of high pressure kettle cover, autoclave body, heating furnace; Slide block II, high pressure kettle cover fixed block are set on the column I; Slide block I, high pressure kettle cover fixed block, motor fixed block are set on the column II, and slide block I is connected with heating furnace, and slide block II is connected with autoclave body; High pressure kettle cover fixed block, high pressure kettle cover fixed block are symmetrical set, and are connected in the both sides of high pressure kettle cover.
2. scratch and the corrosive wear test unit according to the described HTHP original position of claim 1; It is characterized in that: also comprise control box; Frequency converter switch, heating power supply switch, heating voltage regulator, pressure display unit, temperature controller and frequency converter are set in the control box; The frequency converter switch is connected with frequency converter, and frequency converter connects motor through lead; The heating power supply switch is connected with the heating voltage regulator; The heating voltage regulator is connected with temperature controller; Pressure display unit and temperature controller are connected to internal relay, and internal relay connects stove silk, formation overtemperature outage heating arrangement and the superpressure outage heating arrangement of heating furnace through lead.
3. scratch and the corrosive wear test unit according to the described HTHP original position of claim 1; It is characterized in that: the governor motion that adopts nut screw between each slide block and the column; The top of column I and column II is provided with the hand-operated lifting dish, through regulating the hand-operated lifting dish slide block I and slide block II is moved up and down along two columns respectively.
4. scratch and the corrosive wear test unit according to the described HTHP original position of claim 1; It is characterized in that: interior magnet steel outside surface is welded with one deck stainless steel; It is lubricated that interior magnet steel, outer steel upper and lower side are equipped with pottery; Pottery is housed in the centre hole of base, and base is lubricated through pottery with the lower part of the axle that moves up and down.
5. scratch and the corrosive wear test unit according to the described HTHP original position of claim 1; It is characterized in that: a segmentation that moves up and down connects; Move up and down the axle the axle sleeve outside be connected with cooling jacket, cooling water inlet is connected to coolant outlet through high temperature contrast electrode, cooling jacket and hot operation/auxiliary electrode seat successively through pipeline.
6. scratch and the corrosive wear test unit according to the described HTHP original position of claim 1; It is characterized in that: autoclave covers and is fitted with the autoclave catheter; On the autoclave catheter liquid phase valve is housed; Autoclave gas phase mouth divides three the tunnel, connects tensimeter, safety valve, pressure transducer respectively, on autoclave gas phase mouth, is provided with gas valve.
7. scratch and the corrosive wear test unit according to the described HTHP original position of claim 1; It is characterized in that: auxiliary electrode is with the teflon heat-shrink tube through the outside platinum filament is welded in the platinized platinum back as tracerse point, and working electrode is welded on the test button as tracerse point through pure nickel wire or the stainless steel wire that the outside is with the teflon heat-shrink tube; Four holes are arranged in hot operation/auxiliary electrode seat, and lead on the auxiliary electrode and the lead on the working electrode are drawn from hot operation/auxiliary electrode seat.
8. scratch and the corrosive wear test unit according to the described HTHP original position of claim 1; It is characterized in that: also be provided with electrochemical workstation, the wire clamp of the working electrode on the electrochemical workstation, auxiliary electrode and contrast electrode is connected with hot operation electrode cable, high temperature auxiliary electrode lead and high temperature contrast electrode lead respectively.
9. scratch and the corrosive wear test unit according to the described HTHP original position of claim 1, it is characterized in that: have the base fixed bolt hole on the base, bolt covers in autoclave through base fixed bolt hole firm banking.
10. scratch and the corrosive wear test unit according to the described HTHP original position of claim 1; It is characterized in that: draw back of head and be provided with spring; Drawing a side setting stroke set bolt; Sample is fixed in the sample fixing, is provided with the sample fastening bolt on sample fixing at the sample back, adopts insulation system between the device of sample and fixing sample.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202623827U CN202177558U (en) | 2011-07-22 | 2011-07-22 | High-temperature high-voltage normal position scratching and corrosive abrasion test device |
Applications Claiming Priority (1)
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| CN2011202623827U CN202177558U (en) | 2011-07-22 | 2011-07-22 | High-temperature high-voltage normal position scratching and corrosive abrasion test device |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102288504A (en) * | 2011-07-22 | 2011-12-21 | 中国科学院金属研究所 | High-temperature high-pressure in-situ scratching and corrosive wear test device |
| CN102866105A (en) * | 2012-09-20 | 2013-01-09 | 北京科技大学 | Testing device for researching metal electrochemical behaviors in magnetic field load |
| CN103323387A (en) * | 2013-06-25 | 2013-09-25 | 沈阳建筑大学 | Electro-chemical corrosion simulator with in-situ loading |
| CN105556612A (en) * | 2013-09-30 | 2016-05-04 | 阿科姆工程合资(控股)公司 | Method for the in situ passivation of the steel surfaces of a nuclear reactor |
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| WO2019164888A1 (en) * | 2018-02-20 | 2019-08-29 | Saudi Arabian Oil Company | System and method for testing repassivation kinetics |
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2011
- 2011-07-22 CN CN2011202623827U patent/CN202177558U/en not_active Expired - Lifetime
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| CN102288504A (en) * | 2011-07-22 | 2011-12-21 | 中国科学院金属研究所 | High-temperature high-pressure in-situ scratching and corrosive wear test device |
| CN102288504B (en) * | 2011-07-22 | 2013-03-27 | 中国科学院金属研究所 | High-temperature high-pressure in-situ scratching and corrosive wear test device |
| CN102866105A (en) * | 2012-09-20 | 2013-01-09 | 北京科技大学 | Testing device for researching metal electrochemical behaviors in magnetic field load |
| CN102866105B (en) * | 2012-09-20 | 2015-04-01 | 北京科技大学 | Testing device for researching metal electrochemical behaviors in magnetic field load |
| CN103323387A (en) * | 2013-06-25 | 2013-09-25 | 沈阳建筑大学 | Electro-chemical corrosion simulator with in-situ loading |
| CN105556612B (en) * | 2013-09-30 | 2018-03-02 | 阿科姆工程合资(控股)公司 | A kind of in-situ passivation method of nuclear reactor steel surface |
| CN105556612A (en) * | 2013-09-30 | 2016-05-04 | 阿科姆工程合资(控股)公司 | Method for the in situ passivation of the steel surfaces of a nuclear reactor |
| WO2019164888A1 (en) * | 2018-02-20 | 2019-08-29 | Saudi Arabian Oil Company | System and method for testing repassivation kinetics |
| CN111656178A (en) * | 2018-02-20 | 2020-09-11 | 沙特阿拉伯石油公司 | System and method for testing repassivation kinetics |
| US11275016B2 (en) * | 2018-02-20 | 2022-03-15 | Saudi Arabian Oil Company | System and method for testing repassivation kinetics |
| CN109827898A (en) * | 2019-03-29 | 2019-05-31 | 河海大学 | A kind of metal corrosion test device |
| CN109827898B (en) * | 2019-03-29 | 2021-09-17 | 河海大学 | Metal corrosion test device |
| CN110174312A (en) * | 2019-05-27 | 2019-08-27 | 雅砻江流域水电开发有限公司 | A kind of device and film covering method suitable for high temperature and pressure test |
| CN110631942A (en) * | 2019-09-12 | 2019-12-31 | 四川大学 | Friction wear testing machine with trace lubrication system for simulating high-temperature and high-pressure environment |
| CN110631942B (en) * | 2019-09-12 | 2021-03-23 | 四川大学 | Friction wear testing machine with trace lubrication system for simulating high-temperature and high-pressure environment |
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