CN102944602B - High-temperature high-pressure in-situ multichannel rapid scratch electrode system - Google Patents
High-temperature high-pressure in-situ multichannel rapid scratch electrode system Download PDFInfo
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- CN102944602B CN102944602B CN201210436247.9A CN201210436247A CN102944602B CN 102944602 B CN102944602 B CN 102944602B CN 201210436247 A CN201210436247 A CN 201210436247A CN 102944602 B CN102944602 B CN 102944602B
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Abstract
The invention relates to a scratch electrode system, particularly discloses a high-temperature high-pressure in-situ multichannel rapid scratch electrode system, solving the problems of difficulty in realizing in-situ multichannel rapid scratch, fixing scratch samples, insulation, precision translocation of the scratching head, extraction of signal lines, rapid motion axes, pressure balance between the interior and the exterior of an autoclave, sealing, high-precision timing of the scratch process, etc. in high temperature high pressure environments in the prior art. The system comprises a high temperature high pressure work electrode, a high temperature high pressure auxiliary electrode, a high temperature high pressure reference electrode, up and dowm autoclave covers, an autoclave body, a high speed motion axes, a scratching head, an annular heater, etc., can realize the in-situ rapid scratch research on the surface of a metal sample in high temperature high pressure environments and accurately record the time used in the rapid scratch process, and signals of the process of damage to passivation of surface film of the sample in the scratch process can be detected by combining the three high temperature high pressure electrodes arranged on the autoclave covers with an electrochemistry work station.
Description
Technical field
The present invention relates to corrosion-resistant material surface repassivation kinetics parameter measurement technology, be specially a kind of high-temperature high-pressure in-situ multiple tracks Rapid Scratch Technique electrode system.
Background technology
Relying on surface forms fine and close passivating film and has the corrosion resistant alloy of corrosion resistance, in the time that the passivating film of local surfaces exposes unsalted surface because of physical disturbance, can aggravate the generation of unsalted surface place 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.The Sensitivity of Stress Corrosion of material generally by constant load test, constant strain test and slow strain rate test etc. evaluate.These Sensitivity of Stress Corrosion evaluation methods rely on loading environment and sample physical dimension, can not reflect the stress corrosion resistant ability of material itself, and required experimental period are longer, and expense is also higher.According to slippage-dissolving model, the repassivation kinetics parameter of the broken position of film is also closely related with expansion process with the germinating of stress corrosion cracking (SCC).Therefore be, the method for a convenient efficient and cost-effective by the Sensitivity of Stress Corrosion of repassivation kinetics parametric method evaluation material, especially for the corrosion-resistant material of being on active service in high temperature and high pressure environment for a long time.
At present, the mensuration of material repassivation kinetics parameter mainly realizes by scratching electrode method.In high temperature and high pressure environment, the film forming again on fresh material surface is a Fast Process, this just requires scuffing speed also necessary fast so, otherwise will cause the scuffing of specimen surface limit, limit passivation, the signal collecting is so also a series of stacks of unsharp signal and the earlier scratch surface unsharp signal of unsalted surface, can not accurately reflect the again passivation ability of material in specific environment.In order to meet the requirement of insulating and can scratch metal surface, draw a material and generally use the hard-brittle materials such as aluminium oxide ceramics, silicon carbide ceramics and adamas.Because Rapid Scratch Technique process can be given, stroke head is most advanced and sophisticated causes larger impact, thereby easily causes stroke head tip chipping.Therefore, single stroke of head often causes the failure of an experiment.In order to improve conventional efficient, need to produce multiple tracks at the diverse location of specimen surface and scratch.But, due to high-temperature high-pressure in-situ multiple tracks Rapid Scratch Technique electrode system complexity, not only to realize the original position multiple tracks Rapid Scratch Technique of material surface passivating film under High Temperature High Pressure, also to consider realization, rapid movement axle and the autoclave of a lower stroke of rapid movement of High Temperature High Pressure pressure equilibrium, sealing, high-precision timing, sample and the canister between inside and outside insulation, signal wire the series of problems such as draw.Exactly because the technical difficulty on these experimental facilitiess, has limited the in-situ characterization of the corrosion-resistant material passivation ability to using in the high temperature and high pressure environment such as nuclear power and thermoelectricity.At present, relevant device yet there are no report.
Summary of the invention
The object of the present invention is to provide a kind of high-temperature high-pressure in-situ multiple tracks Rapid Scratch Technique electrode system, solve that prior art is difficult to realize original position multiple tracks Rapid Scratch Technique, scratches fixing, the insulation of sample under high temperature and high pressure environment, the series of problems such as pressure equilibrium, sealing and the scuffing process high-precision timing of the drawing of the accurate transposition of drawing head, signal wire, rapid movement axle.
Technical scheme of the present invention:
A kind of high-temperature high-pressure in-situ multiple tracks Rapid Scratch Technique electrode system, this system is provided with: High Temperature High Pressure working electrode, High Temperature High Pressure auxiliary electrode, High Temperature High Pressure contrast electrode, upper and lower high pressure kettle cover, autoclave body, rapid movement axle, stroke head, sample azimuth circle, a manual steering wheel, the ring heater drawn, and concrete structure is as follows:
Autoclave body and upper and lower two high pressure kettle covers form autoclave, and autoclave body is arranged between upper and lower two high pressure kettle covers, and autoclave body is connected with upper and lower two high pressure kettle covers; Cover thermopair, High Temperature High Pressure work/auxiliary electrical electrode seat and High Temperature High Pressure contrast electrode are set at upper autoclave, auxiliary electrode is set in autoclave body, draws head, working electrode, auxiliary electrode and working electrode pass High Temperature High Pressure work/auxiliary electrical electrode seat by wire respectively, and the catheter of High Temperature High Pressure contrast electrode extends in autoclave body;
Rapid movement axle top guide pole is through the pilot hole at guide flat platen center, conducts fast motion axle moves up and down, guide flat platen is connected with the cradling piece in autoclave body by guide flat platen fixed orifice, between rapid movement axle and autoclave, be provided with pressure balance mechanism, and seal by O-ring seal, rapid movement axle bottom is connected with the pneumatic piston connecting rod of pneumatic means, is equipped with and draws head on rapid movement axle, and sample fixing is arranged in stationary platform;
The arranged outside ring heater of autoclave body, autoclave arranges two column supports, two columns on two column supports: column I and column II are set in parallel in the both sides of upper and lower two high pressure kettle covers, autoclave body, ring heater outward; Slide block I is set in column I, is hydraulic-driven, and slide block II is set in column II, for hand-operated lifting dish drives; Slide block I is connected with autoclave body and counterweight, and autoclave body outside is provided with ring heater, and slide block II is connected with high pressure kettle cover;
Rapid movement axle is provided with draws a canned paragraph, three differing heights and direction are housed respectively and draw head, draw an A parallel with the center line of drawing a C, and all vertical with the center line of rapid movement axle and the center line antarafacial of a stroke B, draw the center line of a B perpendicular to the center line of rapid movement axle; Kinematic axis upper end is provided with cubic guide pole and cylindric turning-bar, is connected with drawing between a canned paragraph at guide pole by turning-bar; Rapid movement axle surrounding jacket lower end is provided with sample azimuth circle, and the side of sample azimuth circle also arranges vertical reference line; Rapid movement axle lower end is provided with manually draws a steering wheel, manually on a stroke steering wheel, indicates respectively three and draws an azimuth reference datum; Before experiment, sample azimuth circle is consistent with each self-corresponding sample or a stroke position adjustments in kind respectively with each reference line position on a manual stroke steering wheel; The turning-bar that rapid movement axle is moved to Bing Shiqi top, upper end is arranged in the pilot hole of guide flat platen, is made sample and drawn the azimuth reference datum of head corresponding consistent by turning handle, realizes a different scuffing at specimen surface diverse location of drawing.
Described high-temperature high-pressure in-situ multiple tracks Rapid Scratch Technique electrode system, also comprise control box, heating power supply switch, burner on light, overtemperature alarm lamp, overpressure alarm lamp, timer reset button, temperature controller, heating voltage regulator, pressure display unit and timer are set in control box; Wherein, timer is connected with timer reset button, pressure display unit is connected with overpressure alarm lamp, overtemperature alarm lamp is connected with temperature controller, heating power supply switch is connected with heating voltage regulator, heating power supply switch is connected with burner on light, heating voltage regulator is connected with temperature controller, pressure display unit and temperature controller are connected to control box internal relay, control box internal relay connects the electric furnace heating wire of ring heater by wire, form overtemperature power-off heating arrangement and superpressure power-off heating arrangement.
Described high-temperature high-pressure in-situ multiple tracks Rapid Scratch Technique electrode system, the height of slide block I regulates by hydraulic mechanism, and the bottom of column I is provided with hydraulic jack, and hydraulic jack adopts pedal-operated oil pump, is connected with pedal and spring reset mechanism in hydraulic jack bottom outside; Between slide block II and column, adopt the governor motion of nut screw, the top of column II arranges hand-operated lifting dish, by regulating hand-operated lifting dish that slide block II is moved up and down in column II.
Described high-temperature high-pressure in-situ multiple tracks Rapid Scratch Technique electrode system, maintain the balance of rapid movement axle inside and outside autoclave by pressure balance mechanism, rapid movement axle adopts the mode of connection segment, covers and is provided with rapid movement axle axle sleeve at lower autoclave, and axle sleeve outside is provided with cooling jacket.
Described high-temperature high-pressure in-situ multiple tracks Rapid Scratch Technique electrode system, the thermopair that upper autoclave covers stretches in autoclave body, autoclave gas phase mouth Fen San road, respectively Bonding pressure table, safety valve, pressure unit; Upper autoclave is covered with the exhaust passage communicating with autoclave body inner chamber, and autoclave vent valve is equipped with in the outlet side of described exhaust passage; Lower autoclave covers and is provided with the inlet channel and the feed pathway that communicate with autoclave body inner chamber, and the inlet end of described inlet channel is equipped with gas admittance valve, and the liquid feeding end of described feed pathway is equipped with liquid feed valve, and feed pathway extends the top with autoclave body inner chamber.
Described high-temperature high-pressure in-situ multiple tracks Rapid Scratch Technique electrode system, auxiliary electrode has teflon heat-shrink tube platinum filament by outer cover is welded in after platinized platinum as tracerse point, and working electrode has the pure nickel wire of teflon heat-shrink tube or stainless steel wire to be welded on test button as tracerse point by outer cover; In High Temperature High Pressure work/auxiliary electrical electrode seat, be provided with high temperature plug, the wire on wire and working electrode on auxiliary electrode is drawn from High Temperature High Pressure work/auxiliary electrical electrode seat.
Described high-temperature high-pressure in-situ multiple tracks Rapid Scratch Technique electrode system, also be provided with electrochemical workstation, the wire clamp of working electrode, auxiliary electrode and contrast electrode on electrochemical workstation is connected with High Temperature High Pressure working electrode wire, High Temperature High Pressure auxiliary electrode wire and High Temperature High Pressure contrast electrode wire respectively.
Described high-temperature high-pressure in-situ multiple tracks Rapid Scratch Technique electrode system, on platform, have lifting platform hole, autoclave inner support bar is arranged in lifting platform hole, platform is fixed on autoclave inner support bar by the platform set bolt parallel with platform, autoclave inner support bar two ends are provided with screw thread, and autoclave inner support bar is fixed on lower autoclave by screw thread and covers.
Described high-temperature high-pressure in-situ multiple tracks Rapid Scratch Technique electrode system, draw back of head and be provided with spring, drawing a side setting stroke set bolt, sample is fixed in sample fixing, be provided with sample fastening bolt in sample fixing at sample back, between sample and the device of fixing sample, adopt insulation system: teflon groove, teflon groove is installed in the Baltimore groove of sample fixing, Baltimore groove is the clamping shape that closes up, its open top width is less than bottom width, be convenient to working electrode to be fixed in teflon groove, between teflon groove and sample fastening bolt, be provided with pad.
Described high-temperature high-pressure in-situ multiple tracks Rapid Scratch Technique electrode system, one end of pneumatic piston connecting rod is connected with rapid movement axle lower end, the other end of pneumatic piston connecting rod is provided with reciprocating piston in cylinder, air intake opening and exhausr port are communicated with two chambeies in cylinder by reversal valve respectively, realize moving up and down fast of kinematic axis by reversal valve; The pneumatic piston connecting rod junction of rapid movement axle and pneumatic means is provided with magnet steel, and magnet steel is corresponding with Hall element, coordinates Hall element and timer by accurate the run duration of rapid movement axle record, and the height and position of Hall element is adjustable.
The invention has the beneficial effects as follows:
1, system of the present invention has realized sample original position Rapid Scratch Technique and passivation behavioral study again under High Temperature High Pressure.Coordinate the electrochemical workstation can be by sample surface film in scuffing process by the input that is corrupted to again this process of passivation out by making insulation between sample and device, utilize to be arranged on High Temperature High Pressure contrast electrode on autoclave and High Temperature High Pressure work, auxiliary electrode.
2, the present invention, by the piston rod of rapid movement axle and outer inside casing is connected, has the fireballing feature of scuffing, and adjustable pneumatic device inflow point air pressure changes the scuffing speed of rapid movement axle.
3, the present invention is provided with magnet steel in the junction of rapid movement axle and outer inside casing piston rod, coordinate Hall element and timer the run duration of rapid movement axle accurately can be measured, and the height and position of Hall element is adjustable, be convenient to scratch the quantification contrast of experimental result.
4, the present invention is by the head of drawing that three differing heights and direction are installed in a canned paragraph of drawing at rapid movement axle, and accurately controls the transposition of rapid movement axle, can produce multiple tracks at specimen surface diverse location and scratch.
5, the present invention is by spring being set drawing a back of head, can draw distance between head and sample by adjustings and control stroke the dynamics size while streaking specimen surface.
6, the present invention, by changing drawing head and regulating the distance of drawing between head and sample of different angles, can produce the cut of different in width and different depth.
7, the present invention has solved the pressure equilibrium of rapid movement axle and the problem of sealing by pressure balanced mode.
8, the axle of drawing in the present invention passes through connection segment, is easy to dismounting and safeguards.
9, the present invention, by overtemperature auto-breaking and overvoltage automatic cutout being set respectively at control section, makes this system more safe and reliable in the time of work.
10, the present invention arranges standard interface outward at autoclave, can by cutting ferrule and the outside high-temperature high-pressure water circulation corrosion experiment system with automatic control function (referring to Chinese invention patent: 201010275276.2, the applying date: on 09 08th, 2010; Chinese utility model patent: 201020521040.8, the applying date: on 09 08th, 2010, authorize day: on 06 01st, 2011) connect, thus can accurately control the chemical environment of water in autoclave.
11, the present invention is by being provided with cubic guide pole and cylindric turning-bar in kinematic axis upper end, and rapid movement axle surrounding jacket lower end is provided with sample azimuth circle; Rapid movement axle lower end is provided with manually draws a steering wheel, indicates respectively three and draw an azimuth reference datum on dish.Before experiment, sample azimuth circle is consistent with each self-corresponding sample or a stroke position adjustments in kind respectively with each reference line position on a manual stroke steering wheel.The turning-bar that rapid movement axle is moved to Bing Shiqi top, upper end is arranged in the pilot hole of guide flat platen, is made sample and drawn the azimuth reference datum of head corresponding consistent by turning handle, can realize a different scuffing at specimen surface diverse location of drawing.
Accompanying drawing explanation
Fig. 1 is high-temperature high-pressure in-situ multiple tracks Rapid Scratch Technique electrode system structural representation;
In figure, 1 contrast electrode; 2 hand-operated lifting dishes; 3 cooling of electrode water inlets; 4 column II; 5 thermopairs; 6 slide block II; 7 guide flat platens; 8 working electrodes (sample); 9 ring heaters; 10 rapid movement axles; 11-1 draws an A; 11-2 draws a B; 11-3 draws a C; 12 gas admittance valves; 13 rapid movement axle cooling water inlets; 14 reversal valve switches; 15 reversal valves; 16 pneumatic piston connecting rods; 17 pistons; 18 air intake openings; 19 exhausr ports; 20 air releases; 21 pedals; 22 hydraulic jacks; 23 Hall elements; 24 rapid movement axle coolant outlets; 25 liquid feed valves; 26 auxiliary electrodes; 27 counterweights; 28 slide block I; 29 autoclave vent valves; High pressure kettle cover on 30; 31 column I; 32 cooling of electrode water outs; 33 pressure units; 34 tensimeters; 35 safety valve; 36 magnet steel; 37 times high pressure kettle covers; 38 autoclave bodies; 39 High Temperature High Pressure work/auxiliary electrical electrode seats; 40 catheters; 41 cylinders; 42 cradling pieces; 62 axle sleeves; 63 cooling jackets; 64 guide poles; 65 strokes of canned paragraphs; 66 sample azimuth circles; 67 handles; 68 manually draw a steering wheel.
Fig. 2 is Fig. 1 mesohigh kettle inner structure schematic diagram;
In figure, 8 working electrodes (sample); 10 rapid movement axles; 11-2 draws a B; 38 autoclave bodies; 43 platforms; 44 lifting platform holes; 45 platform set bolts; 46 springs; 47 sample fixing; 49 sample fastening bolts; 50 teflon grooves; 51 strokes of set bolts; 65 strokes of canned paragraphs; 69 pads.
Fig. 3 is guide table plate structure schematic diagram in Fig. 1;
In figure, 7 guide flat platens; 52 pilot holes; 53 guide flat platen fixed orifices.
Fig. 4 is rapid movement axle upper end 3-D solid structure schematic diagram;
In figure, 10 rapid movement axles; 11-1 draws an A; 11-2 draws a B; 11-3 draws a C; 64 guide poles; 65 strokes of canned paragraphs; 70 turning-bars.
Fig. 5 is rapid movement axle lower end accurate transposition part-structure schematic diagram;
In figure, 66 sample azimuth circles; 67 handles; 68 manually draw a steering wheel; 71 axle sleeve holes; 72 sample azimuth reference datums; 73 strokes of A azimuth reference datums; 74 strokes of B azimuth reference datums; 75 strokes of C azimuth reference datums; 76 fastening bolts; 77 rapid movement axis holes; 78 fastening bolts.
Fig. 6 is multiple tracks Rapid Scratch Technique two dimensional surface principle schematic;
In figure, 8 working electrodes (sample); 10 rapid movement axles; 11-1 draws an A; 11-2 draws a B; 11-3 draws a C; 79 rapid movement axle central axis; 80 strokes of A working positions; 81 strokes of C working positions; 82 strokes of most advanced and sophisticated rotational trajectory circles of A, C; 83 strokes of most advanced and sophisticated rotational trajectory circles of B.
Fig. 7 is high-temperature high-pressure in-situ multiple tracks Rapid Scratch Technique electrode system control box;
In figure, 48 burner on lights; 54 heating voltage regulators; 55 pressure display units; 56 timer; 57 timer reset button; 58 overpressure alarm lamps; 59 overtemperature alarm lamps; 60 heating power supply switches; 61 temperature controllers.
Embodiment
As shown in Fig. 1-Fig. 7, high-temperature high-pressure in-situ multiple tracks Rapid Scratch Technique electrode system of the present invention is at Chinese invention patent application (application number: 201210250420.6, the applying date: on 07 19th, 2012) basis on further improvement, this system is provided with: contrast electrode 1, hand-operated lifting dish 2, cooling of electrode water inlet 3, column II 4, thermopair 5, slide block II 6, guide flat platen 7, working electrode (sample) 8, ring heater 9, rapid movement axle 10, draw head and (draw an A11-1, draw a B11-2, draw a C11-3), gas admittance valve 12, rapid movement axle cooling water inlet 13, reversal valve switch 14, reversal valve 15, pneumatic piston connecting rod 16, piston 17, air intake opening 18, exhausr port 19, air release 20, pedal 21, hydraulic jack 22, Hall element 23, rapid movement axle coolant outlet 24, liquid feed valve 25, auxiliary electrode 26, counterweight 27, slide block I 28, autoclave vent valve 29, upper high pressure kettle cover 30, column I 31, cooling of electrode water out 32, pressure unit 33, tensimeter 34, safety valve 35, magnet steel 36, lower high pressure kettle cover 37, autoclave body 38, High Temperature High Pressure work/auxiliary electrical electrode seat 39, catheter 40, cylinder 41, cradling piece 42, platform 43, lifting platform hole 44, platform set bolt 45, spring 46, sample fixing 47, burner on light 48, sample fastening bolt 49, teflon groove 50, draw a set bolt 51, pilot hole 52, guide flat platen fixed orifice 53, heating voltage regulator 54, pressure display unit 55, timer 56, timer reset button 57, overpressure alarm lamp 58, overtemperature alarm lamp 59, heating power supply switch 60, temperature controller 61, axle sleeve 62, cooling jacket 63, guide pole 64, draw a canned paragraph 65, sample azimuth circle 66, handle 67, manually draw a steering wheel 68, pad 69, turning-bar 70, axle sleeve hole 71, sample azimuth reference datum 72, draw an A azimuth reference datum 73, draw a B azimuth reference datum 74, draw a C azimuth reference datum 75, fastening bolt 76, rapid movement axis hole 77, fastening bolt 78, rapid movement axle central axis 79, draw an A working position 80, draw a C working position 81, draw an A, the most advanced and sophisticated rotational trajectory circle 82 of C, draw the most advanced and sophisticated rotational trajectory circle 83 of a B etc., concrete structure is as follows:
The guide pole 64 on rapid movement axle 10 tops is through the pilot hole 52(square hole at guide flat platen 7 centers), conducts fast motion axle 10 moves up and down, the surrounding of guide flat platen 7 is respectively equipped with guide flat platen fixed orifice 53(Fig. 3), guide flat platen 7 is connected with the cradling piece 42 in autoclave body 38 by guide flat platen fixed orifice 53, guide pole 64 conducts fast motion axles 10 move up and down by pilot hole 52, between rapid movement axle 10 and autoclave, be provided with pressure balance mechanism, and seal by O-ring seal, rapid movement axle 10 bottoms are connected with the pneumatic piston connecting rod 16 of pneumatic means.Rapid movement axle 10 is provided with draws a canned paragraph 65, drawing the head of drawing that three differing heights and direction are installed on a canned paragraph 65: draw an A11-1, draw a B11-2, draw a C11-3, and three to draw a direction vertical with three planes of cubic guide pole 64 respectively, between guide pole 64 and a stroke canned paragraph 65, be connected (Fig. 4) by turning-bar 70.
As shown in Figure 6, multiple tracks Rapid Scratch Technique two dimensional surface principle is as follows:
Drawing on a canned paragraph 65 on rapid movement axle 10, by drawing an A11-1, draw a B11-2, draw a C11-3 and on working electrode (sample), carry out the test of multiple tracks Rapid Scratch Technique, the track of drawing an A11-1 and draw a C11-3 is for drawing an A, the most advanced and sophisticated rotational trajectory circle 82 of C, draw the track of a B11-2 for drawing the most advanced and sophisticated rotational trajectory circle 83 of a B, draw an A, the most advanced and sophisticated rotational trajectory circle 82 of C is positioned at draws the most advanced and sophisticated rotational trajectory circle of a B 83 outsides, draw an A11-1 and scratch working electrode (sample) 8 in a stroke A working position 80, draw a C11-3 and scratch working electrode (sample) 8 in a stroke C working position 81.Draw an A11-1 parallel with the center line of drawing a C11-3, and all vertical with the center line antarafacial of rapid movement axle central axis 79 and a stroke B; Draw the center line of a B perpendicular to rapid movement axle central axis 79.
The arranged outside ring heater 9 of autoclave body 38, autoclave arranges two column supports, two columns on two column supports: column I 31, column II 4 are set in parallel in the both sides of upper and lower two high pressure kettle covers, autoclave body 38, ring heater 9 outward; Slide block I 28 is set in column I 31, is hydraulic-driven; Slide block II 6 is set, for hand-operated lifting dish drives in column II 4.Slide block I 28 is connected with autoclave body 38 and counterweight 27, and autoclave body 38 outsides are provided with ring heater 9, and slide block II 6 is connected with high pressure kettle cover 30.
In addition, as shown in Figure 7, also comprise control box, heating power supply switch 60, burner on light 48, overtemperature alarm lamp 59, overpressure alarm lamp 58, timer reset button 57, temperature controller 61, heating voltage regulator 54, pressure display unit 55 and timer 56 are set in control box; Wherein, timer 56 is connected with timer reset button 57, and pressure display unit 55 is connected with overpressure alarm lamp 58, and overtemperature alarm lamp 59 is connected with temperature controller 61.Heating power supply switch 60 is connected with heating voltage regulator 54, heating power supply switch 60 is connected with burner on light 48, heating voltage regulator 54 is connected with temperature controller 61, pressure display unit 55 and temperature controller 61 are connected to control box internal relay, control box internal relay connects the electric furnace heating wire of ring heater 9 by wire, form overtemperature power-off heating arrangement and superpressure power-off heating arrangement.
The height of slide block I 28 regulates by hydraulic mechanism, the bottom of column I 31 is provided with hydraulic jack 22, hydraulic jack 22 adopts pedal-operated oil pump, be connected with pedal 21 and spring reset mechanism in hydraulic jack 22 bottom outside, the pedal 21 of hydraulic jack 22 by its bottom outside also coordinates the manually-operated gate at its middle part to start, and realizes slide block I 28 and moves up and down along column I 31; The governor motion that adopts nut screw between slide block II 6 and column II 4, the top of column II 4 arranges hand-operated lifting dish 2, by regulating hand-operated lifting dish 2 that slide block II 6 is moved up and down in column II 4.
Maintain the balance of rapid movement axle inside and outside autoclave by pressure balance mechanism, rapid movement axle 10 adopts the mode of connection segment, on lower high pressure kettle cover 37, be provided with rapid movement axle axle sleeve 62, axle sleeve 62 outsides are provided with cooling jacket 63, are respectively equipped with rapid movement axle cooling water inlet 13 and rapid movement axle coolant outlet 24 on cooling jacket 63.Also be provided with sample azimuth circle 66 in axle sleeve 62 outsides, sample azimuth circle 66 center is the axle sleeve hole 71 for axle sleeve 62 is installed, and the side of sample azimuth circle 66 arranges fastening bolt 78, for being fastenedly connected with axle sleeve 62; In addition, the side of sample azimuth circle 66 also arranges vertical reference line: sample azimuth reference datum 72; The bottom of sample azimuth circle 66 arranges manually draws a steering wheel 68 on rapid movement axle 10, the side of manually drawing a steering wheel 68 arranges handle 67 and fastening bolt 76, manually drawing a steering wheel 68 center is the rapid movement axis hole 77 coordinating with rapid movement axis hole 10, manually draws a steering wheel 68 and is fastenedly connected by fastening bolt 76 and rapid movement axle 10.Manually draw a steering wheel 68 sides vertical reference line is set: draw an A azimuth reference datum 73, draw a B azimuth reference datum 74, draw C azimuth reference datum 75(Fig. 5).
Upper high pressure kettle cover 30 is provided with thermopair 5 and stretches in autoclave body 38, and upper high pressure kettle cover 30 is provided with autoclave gas phase mouth, autoclave gas phase mouth Fen San road, respectively Bonding pressure table 34, safety valve 35, pressure unit 33.
Upper high pressure kettle cover 30 is provided with the exhaust passage communicating with autoclave body 38 inner chambers, and autoclave vent valve 29 is equipped with in the outlet side of described exhaust passage; Lower high pressure kettle cover 37 is provided with the inlet channel and the feed pathway that communicate with autoclave body 38 inner chambers, the inlet end of described inlet channel is equipped with gas admittance valve 12, the liquid feeding end of described feed pathway is equipped with liquid feed valve 25, and feed pathway extends the top with autoclave body 38 inner chambers.
Auxiliary electrode 26 has teflon heat-shrink tube platinum filament by outer cover is welded in after platinized platinum as tracerse point, and working electrode (sample) 8 has the pure nickel wire of teflon heat-shrink tube or stainless steel wire to be welded on test button as tracerse point by outer cover; In High Temperature High Pressure work/auxiliary electrical electrode seat 39, be provided with four hole high temperature plugs, the wire on the wire on auxiliary electrode 26 and working electrode (sample) 8 is drawn from High Temperature High Pressure work/auxiliary electrical electrode seat 39.
In addition, also be provided with electrochemical workstation, the wire clamp of working electrode, auxiliary electrode and contrast electrode on electrochemical workstation is connected with High Temperature High Pressure working electrode (sample) 8 wires, High Temperature High Pressure auxiliary electrode 26 wires and High Temperature High Pressure contrast electrode 1 wire respectively.
As shown in Figure 2, on platform 43, have lifting platform hole 44, autoclave inner support bar 42 is arranged in lifting platform hole 44, platform 43 is fixed on autoclave inner support bar 42 by the four platforms set bolt 45 parallel with platform 43, autoclave inner support bar 42 two ends are provided with screw thread, and autoclave inner support bar 42 is fixed on lower high pressure kettle cover 37 by screw thread.Drawing on a canned paragraph 65 on the interior rapid movement axle 10 of autoclave body 38 arranges and draws a head (stroke A11-1, draw a B11-2, draw a C11-3), each stroke of back of head is provided with spring 46, drawing a side setting stroke set bolt 51, sample fixing 47 is arranged on platform 43, working electrode (sample) 8 is fixed in sample fixing 47, be provided with sample fastening bolt 49 in sample fixing 47 at working electrode (sample) 8 backs, between teflon groove 50 and sample fastening bolt 49, be provided with pad 69, between working electrode (sample) 8 and the device of fixing sample, adopt insulation system: teflon groove 50, teflon groove 50 is installed in the Baltimore groove of sample fixing 47, Baltimore groove is the clamping shape that closes up, its open top width is less than bottom width, be convenient to working electrode (sample) 8 to be fixed in teflon groove 50.
One end of pneumatic piston connecting rod 16 is connected with rapid movement axle 10 lower ends, the other end of pneumatic piston connecting rod 16 is provided with reciprocating piston 17 in cylinder 41, air intake opening 18 and exhausr port 19 are communicated with two chambeies in cylinder 41 by reversal valve 15 respectively, thereby realize moving up and down of kinematic axis by reversal valve.Cylinder 41 bottoms are also provided with air release 20, and its effect is further to accelerate the speed that rapid movement axle moves downward.
In the present invention, High Temperature High Pressure refers to: maximum operating temperature is 350 ℃, and maximum working pressure (MOP) is 20MPa.
In the present invention, the fastest movement velocity that rapid movement axle single moves downward is 4m/s.
In the present invention, the High Temperature High Pressure solution in autoclave can produce a downward acting force to rapid movement axle, and the chamber inner high voltage liquid that rapid movement axle axle sleeve bottom is connected with autoclave can produce an acting force upwards to rapid movement axle.Pressure balance mechanism mainly refers to the balance between these two power.In addition, rapid movement axle is also subject to friction force and the self gravitation effect between itself and O-ring seal, and rapid movement shaft balancing is mainly this acting in conjunction that is subject to these four power.
In the present invention, the timing resolution of timer is 0.1ms.
In the present invention, the maximum operating temperature of high temperature plug is 260 ℃.Because be connected with chilled water in High Temperature High Pressure work/auxiliary electrical electrode seat, thus high temperature plug in the time of normal work in normal temperature state.
The course of work of high-temperature high-pressure in-situ multiple tracks Rapid Scratch Technique electrode system of the present invention is as follows:
One, when the high-temperature high-pressure water circulation corrosion experiment system that does not have an automatic control function with outside when high-temperature high-pressure in-situ multiple tracks Rapid Scratch Technique electrode system is connected:
1, by pure nickel wire or stainless steel wire appearance surface cover one deck teflon heat-shrink tube, with after heat gun pyrocondensation as wire bonds on working electrode (sample) 8 surfaces;
2, working electrode (sample) 8 is arranged in the sample fixing 47 that is provided with teflon groove 50, and the sample fastening bolt 49 at working electrode (sample) 8 backs is tightened;
3, sample azimuth circle 66 is consistent with each self-corresponding sample or a stroke position adjustments in kind respectively with manual each reference line on a steering wheel 68 (sample azimuth reference datum 72, a stroke A azimuth reference datum 73, a stroke B azimuth reference datum 74, a stroke C azimuth reference datum 75) position of drawing, and make three strokes of heads (draw an A11-1, draw a B11-2, draw a C11-3) direction vertical with three planes of cubic guide pole 64 respectively, tighten the screw thread of each coupling part on rapid movement axle 10;
4, auxiliary electrode 26 is arranged in autoclave, and maintenance and sample just right;
5, be arranged on upper high pressure kettle cover 30 after High Temperature High Pressure contrast electrode 1 is demarcated, and keep the liquid outlet on High Temperature High Pressure contrast electrode 1 top to close;
6, regulate respectively three draw the distance of head (draw an A11-1, draw a B11-2, draw a C11-3) and working electrode (sample) 8 and draw the spring 46 at a back, guarantee that each stroke of head can contact with working electrode (sample) 8 in the process of paddling, and can not touch auxiliary electrode 26.The turning-bar 70 that rapid movement axle 10 is moved to Shi Qi top, upper end is arranged in the pilot hole 52 of guide flat platen 7;
7, regulate hydraulicefficiency elevation structure (hydraulic jack 22), autoclave body 38 and lower high pressure kettle cover 37 are adjusted to suitable height, tighten the bolt on lower high pressure kettle cover 37;
8, be the solution of autoclave volume 1/2 to 2/3 toward adding volume in autoclave, solution can be selected according to actual working environment, as simulate aqueous solution of nuclear power station one loop boronic acid containing and lithium hydroxide etc., and guarantee that the lower end of working electrode (sample) 8, auxiliary electrode 26 and High Temperature High Pressure contrast electrode catheter 40 can be immersed in solution completely;
9, regulate hand-operated lifting dish 2, upper high pressure kettle cover 30 and autoclave body 38 are adjusted to suitable height, and working electrode (sample) 8 and auxiliary electrode 26 wires are drawn from High Temperature High Pressure work/auxiliary electrical electrode seat 39 of upper high pressure kettle cover, tighten the bolt on high pressure kettle cover 30;
10, pass into nitrogen deoxygenation according to experiment in need to be from the air intake opening of lower high pressure kettle cover 37 to autoclave body 38, then from the autoclave vent valve 29 of upper high pressure kettle cover 30, discharge.After degasification finishes, the autoclave vent valve 29 of the gas admittance valve of lower high pressure kettle cover 37 12 and upper high pressure kettle cover 30 is closed successively, and open the liquid outlet on High Temperature High Pressure contrast electrode 1 top;
11, the parameter such as upper pressure limit of the upper temperature limit of the target temperature on design temperature controller 61, overtemperature auto-breaking, heat regulation voltage and overvoltage automatic cutout;
12, open cooling water switch, in the cooling jacket 63 of High Temperature High Pressure electrode cooling water inlet 3 and rapid movement axle axle sleeve outside, pass into chilled water;
13, open heating power supply switch 60, after High Temperature High Pressure contrast electrode 1 liquid outlet continuous effluent, liquid outlet place valve is tightened and closed;
14, treat that temperature reaches setting value, and after tending towards stability, need to utilize potentiostat to adding a constant potential on sample according to experiment, and stable a period of time makes it in passive state.Drawing a steering wheel 68 by handle 67 rotation manual makes to test required use to draw the azimuth reference datum of head corresponding consistent with sample azimuth reference datum.Press timer reset button 57, open the air release 20 of cylinder 41 bottoms.Then, press reversal valve switch 14, make cylinder 41 top fast aeration, and then piston, the rapid movement axle 10 that is connected with the piston rod speed as required that promotes moves downward fast, drive thus draw head (draw an A11-1, draw a B11-2, draw a C11-3) from top to bottom fast cross working electrode (sample) 8 surfaces, destroy specimen surface passivating film.By electrochemical workstation Quick Acquisition with record the specimen surface passivating film curent change in film forming procedure again.
15, complete after single Rapid Scratch Technique, close the air release 20 of pneumatic part, pull open reversal valve switch 14, make cylinder 41 bottom inflations, and then piston, the rapid movement axle 10 that is connected with the piston rod speed as required that promotes moves upward, make to draw head (drawing an A11-1, a stroke B11-2, a stroke C11-3) location restore to initial position.Repeating step 14 can carry out Inactivation experiment research again again.
Two, when the high-temperature high-pressure water circulation corrosion experiment system that has an automatic control function when high-temperature high-pressure in-situ multiple tracks Rapid Scratch Technique electrode system and outside is connected:
1, by pure nickel wire or stainless steel wire appearance surface cover one deck teflon heat-shrink tube, with after heat gun pyrocondensation as wire bonds on working electrode (sample) 8 surfaces;
2, working electrode (sample) 8 is arranged in the sample fixing that is provided with teflon groove 50, and the sample fastening bolt 49 at working electrode (sample) 8 backs is tightened;
3, sample azimuth circle 66 is consistent with each self-corresponding sample or a stroke position adjustments in kind respectively with manual each reference line on a steering wheel 68 (sample azimuth reference datum 72, a stroke A azimuth reference datum 73, a stroke B azimuth reference datum 74, a stroke C azimuth reference datum 75) position of drawing, and make three strokes of heads (draw an A11-1, draw a B11-2, draw a C11-3) direction vertical with three planes of cubic guide pole 64 respectively, tighten the screw thread of each coupling part on rapid movement axle 10;
4, auxiliary electrode 26 is arranged in autoclave, and maintenance and sample just right;
5, be arranged on upper high pressure kettle cover 30 after High Temperature High Pressure contrast electrode 1 is demarcated, and keep the liquid outlet on High Temperature High Pressure contrast electrode 1 top to open;
6, regulate respectively three draw the distance of head (draw an A11-1, draw a B11-2, draw a C11-3) and working electrode (sample) 8 and draw the spring 46 at a back, guarantee that each stroke of head can contact with working electrode (sample) 8 in the process of paddling, and can not touch auxiliary electrode 26.The turning-bar 70 that rapid movement axle 10 is moved to Shi Qi top, upper end is arranged in the pilot hole 52 of guide flat platen 7;
7, regulate hydraulicefficiency elevation structure (hydraulic jack 22), autoclave body 38 and lower high pressure kettle cover 37 are adjusted to suitable height, tighten the bolt on lower high pressure kettle cover 37;
8, regulate hand-operated lifting dish 2, upper high pressure kettle cover 30 and autoclave body 38 are adjusted to suitable height, and working electrode (sample) 8 and auxiliary electrode 26 wires are drawn from High Temperature High Pressure work/auxiliary electrical electrode seat 39 of upper high pressure kettle cover, tighten the bolt on high pressure kettle cover 30;
9, by cutting ferrule, the inlet on lower high pressure kettle cover 37 is connected with the high-temperature high-pressure water circulation corrosion experiment system that outside has automatic control function with air intake opening place pipeline, solution can be selected according to actual working environment, as the aqueous solution of simulation nuclear power station one loop boronic acid containing and lithium hydroxide etc.;
10, the every water chemistry parameter in whole high-temperature high-pressure water circulation corrosion experiment system reaches after setting value, open the autoclave vent valve 29 on liquid feed valve 25 and the upper high pressure kettle cover 30 on lower high pressure kettle cover 37, after the autoclave vent valve 29 place's continuous effluent on upper high pressure kettle cover 30 by exhaust valve closure, after High Temperature High Pressure contrast electrode 1 liquid outlet continuous effluent, contrast electrode 1 liquid outlet place valve is tightened and closed.Then open the gas admittance valve 12 on lower high pressure kettle cover 37;
11, regulate and make the pressure of system high pressure part reach preset value by the interlock of high-pressure pump and counterbalance valve;
12, observe whole system various piece normal operation, after leaking, the parameters such as the upper pressure limit of the target temperature on design temperature controller 61, the upper temperature limit of overtemperature auto-breaking, heat regulation voltage and overvoltage automatic cutout;
13, open cooling water switch, in the cooling jacket 63 of High Temperature High Pressure electrode cooling water inlet 3 and rapid movement axle axle sleeve outside, pass into chilled water, then open primary heater in high-temperature high-pressure water circulation corrosion experiment system and the heating power supply switch 60 of autoclave;
14, treat that temperature reaches setting value, and after tending towards stability, need to utilize potentiostat to adding a constant potential on sample according to experiment, and stable a period of time makes it in passive state.Drawing a steering wheel 68 by handle 67 rotation manual makes to test required use to draw the azimuth reference datum of head (draw an A azimuth reference datum 73, draw a B azimuth reference datum 74, draw a C azimuth reference datum 75) corresponding consistent with sample azimuth reference datum 72.Press timer reset button, open the air release 20 of cylinder 41 bottoms.Then, press reversal valve switch 14, make cylinder 41 top fast aeration, and then piston, the rapid movement axle 10 that is connected with the piston rod speed as required that promotes moves downward fast, drive thus draw head (draw an A11-1, draw a B11-2, draw a C11-3) from top to bottom fast cross working electrode (sample) 8 surfaces, destroy specimen surface passivating film.By electrochemical workstation Quick Acquisition with record the specimen surface passivating film curent change in film forming procedure again.
15, complete after single Rapid Scratch Technique, close the air release 20 of pneumatic part, pull open reversal valve switch 14, make cylinder 41 bottom inflations, and then piston, the rapid movement axle 10 that is connected with the piston rod speed as required that promotes moves upward, make to draw head (drawing an A11-1, a stroke B11-2, a stroke C11-3) location restore to initial position.Repeating step 14 can carry out Inactivation experiment research again again.
Claims (10)
1. a high-temperature high-pressure in-situ multiple tracks Rapid Scratch Technique electrode system, it is characterized in that, this system is provided with: High Temperature High Pressure working electrode, High Temperature High Pressure auxiliary electrode, High Temperature High Pressure contrast electrode, upper and lower high pressure kettle cover, autoclave body, rapid movement axle, stroke head, sample azimuth circle, a manual steering wheel, the ring heater drawn, and concrete structure is as follows:
Autoclave body and upper and lower two high pressure kettle covers form autoclave, and autoclave body is arranged between upper and lower two high pressure kettle covers, and autoclave body is connected with upper and lower two high pressure kettle covers; Cover thermopair, High Temperature High Pressure work/auxiliary electrical electrode seat and High Temperature High Pressure contrast electrode are set at upper autoclave, High Temperature High Pressure auxiliary electrode is set in autoclave body, draws head, High Temperature High Pressure working electrode, High Temperature High Pressure auxiliary electrode and High Temperature High Pressure working electrode pass High Temperature High Pressure work/auxiliary electrical electrode seat by wire respectively, and the catheter of High Temperature High Pressure contrast electrode extends in autoclave body;
Rapid movement axle top guide pole is through the pilot hole at guide flat platen center, conducts fast motion axle moves up and down, guide flat platen is connected with the cradling piece in autoclave body by guide flat platen fixed orifice, between rapid movement axle and autoclave, be provided with pressure balance mechanism, and seal by O-ring seal, rapid movement axle bottom is connected with the pneumatic piston connecting rod of pneumatic means, is equipped with and draws head on rapid movement axle, and sample fixing is arranged in stationary platform;
The arranged outside ring heater of autoclave body, autoclave arranges two column supports, two columns on two column supports: column I and column II are set in parallel in the both sides of upper and lower two high pressure kettle covers, autoclave body, ring heater outward; Slide block I is set in column I, is hydraulic-driven, and slide block II is set in column II, for hand-operated lifting dish drives; Slide block I is connected with autoclave body and counterweight, and autoclave body outside is provided with ring heater, and slide block II is connected with high pressure kettle cover;
Rapid movement axle is provided with draws a canned paragraph, three differing heights and direction are housed respectively and draw head, draw an A parallel with the center line of drawing a C, and all vertical with the center line of rapid movement axle and the center line antarafacial of a stroke B, draw the center line of a B perpendicular to the center line of rapid movement axle; Kinematic axis upper end is provided with cubic guide pole and cylindric turning-bar, is connected with drawing between a canned paragraph at guide pole by turning-bar; Rapid movement axle surrounding jacket lower end is provided with sample azimuth circle, and the side of sample azimuth circle also arranges vertical reference line; Rapid movement axle lower end is provided with manually draws a steering wheel, manually on a stroke steering wheel, indicates respectively three and draws an azimuth reference datum; Before experiment, sample azimuth circle is consistent with each self-corresponding sample or a stroke position adjustments in kind respectively with each reference line position on a manual stroke steering wheel; The turning-bar that rapid movement axle is moved to Bing Shiqi top, upper end is arranged in the pilot hole of guide flat platen, is made sample and drawn the azimuth reference datum of head corresponding consistent by turning handle, realizes a different scuffing at specimen surface diverse location of drawing.
2. according to high-temperature high-pressure in-situ multiple tracks Rapid Scratch Technique electrode system claimed in claim 1, it is characterized in that: also comprise control box, heating power supply switch, burner on light, overtemperature alarm lamp, overpressure alarm lamp, timer reset button, temperature controller, heating voltage regulator, pressure display unit and timer are set in control box; Wherein, timer is connected with timer reset button, pressure display unit is connected with overpressure alarm lamp, overtemperature alarm lamp is connected with temperature controller, heating power supply switch is connected with heating voltage regulator, heating power supply switch is connected with burner on light, heating voltage regulator is connected with temperature controller, pressure display unit and temperature controller are connected to control box internal relay, control box internal relay connects the electric furnace heating wire of ring heater by wire, form overtemperature power-off heating arrangement and superpressure power-off heating arrangement.
3. according to high-temperature high-pressure in-situ multiple tracks Rapid Scratch Technique electrode system claimed in claim 1, it is characterized in that: the height of slide block I regulates by hydraulic mechanism, the bottom of column I is provided with hydraulic jack, hydraulic jack adopts pedal-operated oil pump, is connected with pedal and spring reset mechanism in hydraulic jack bottom outside; Between slide block II and column, adopt the governor motion of nut screw, the top of column II arranges hand-operated lifting dish, by regulating hand-operated lifting dish that slide block II is moved up and down in column II.
4. according to high-temperature high-pressure in-situ multiple tracks Rapid Scratch Technique electrode system claimed in claim 1, it is characterized in that: maintain the balance of rapid movement axle inside and outside autoclave by pressure balance mechanism, rapid movement axle adopts the mode of connection segment, cover and be provided with rapid movement axle axle sleeve at lower autoclave, axle sleeve outside is provided with cooling jacket.
5. according to high-temperature high-pressure in-situ multiple tracks Rapid Scratch Technique electrode system claimed in claim 1, it is characterized in that: the thermopair that upper autoclave covers stretches in autoclave body autoclave gas phase mouth Fen San road, respectively Bonding pressure table, safety valve, pressure unit; Upper autoclave is covered with the exhaust passage communicating with autoclave body inner chamber, and autoclave vent valve is equipped with in the outlet side of described exhaust passage; Lower autoclave covers and is provided with the inlet channel and the feed pathway that communicate with autoclave body inner chamber, and the inlet end of described inlet channel is equipped with gas admittance valve, and the liquid feeding end of described feed pathway is equipped with liquid feed valve, and feed pathway extends the top with autoclave body inner chamber.
6. according to high-temperature high-pressure in-situ multiple tracks Rapid Scratch Technique electrode system claimed in claim 1, it is characterized in that: High Temperature High Pressure auxiliary electrode has teflon heat-shrink tube platinum filament by outer cover is welded in after platinized platinum as tracerse point, and High Temperature High Pressure working electrode has the pure nickel wire of teflon heat-shrink tube or stainless steel wire to be welded on test button as tracerse point by outer cover; In High Temperature High Pressure work/auxiliary electrical electrode seat, be provided with high temperature plug, the wire on the wire on High Temperature High Pressure auxiliary electrode and High Temperature High Pressure working electrode is drawn from High Temperature High Pressure work/auxiliary electrical electrode seat.
7. according to high-temperature high-pressure in-situ multiple tracks Rapid Scratch Technique electrode system claimed in claim 1, it is characterized in that: be also provided with electrochemical workstation, the wire clamp of working electrode, auxiliary electrode and contrast electrode on electrochemical workstation is connected with High Temperature High Pressure working electrode wire, High Temperature High Pressure auxiliary electrode wire and High Temperature High Pressure contrast electrode wire respectively.
8. according to high-temperature high-pressure in-situ multiple tracks Rapid Scratch Technique electrode system claimed in claim 1, it is characterized in that: on platform, have lifting platform hole, autoclave inner support bar is arranged in lifting platform hole, platform is fixed on autoclave inner support bar by the platform set bolt parallel with platform, autoclave inner support bar two ends are provided with screw thread, and autoclave inner support bar is fixed on lower autoclave by screw thread and covers.
9. according to high-temperature high-pressure in-situ multiple tracks Rapid Scratch Technique electrode system claimed in 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 sample fixing, be provided with sample fastening bolt in sample fixing at sample back, between sample and the device of fixing sample, adopt insulation system: teflon groove, teflon groove is installed in the Baltimore groove of sample fixing, Baltimore groove is the clamping shape that closes up, its open top width is less than bottom width, be convenient to High Temperature High Pressure working electrode to be fixed in teflon groove, between teflon groove and sample fastening bolt, be provided with pad.
10. according to high-temperature high-pressure in-situ multiple tracks Rapid Scratch Technique electrode system claimed in claim 1, it is characterized in that: one end of pneumatic piston connecting rod is connected with rapid movement axle lower end, the other end of pneumatic piston connecting rod is provided with reciprocating piston in cylinder, air intake opening and exhausr port are communicated with two chambeies in cylinder by reversal valve respectively, realize moving up and down fast of kinematic axis by reversal valve; The pneumatic piston connecting rod junction of rapid movement axle and pneumatic means is provided with magnet steel, and magnet steel is corresponding with Hall element, coordinates Hall element and timer by accurate the run duration of rapid movement axle record, and the height and position of Hall element is adjustable.
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| CN106706511B (en) * | 2017-02-16 | 2023-08-11 | 天津大学 | Electrochemical reaction kettle with two open sides and application method thereof |
| CN111879736B (en) * | 2020-07-31 | 2022-11-15 | 西南石油大学 | Device and method for determining solid-phase deposition conditions of crude oil in high-temperature ultrahigh-pressure oil reservoir |
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| CN100412539C (en) * | 2005-04-14 | 2008-08-20 | 张荣华 | Detection standardization experimental apparatus platform for high-temperature high-pressure chemical sensor |
| CN101520402A (en) * | 2009-02-24 | 2009-09-02 | 上海大学 | Experimental facility for testing electrochemical signals of various materials in high-temperature high-pressure environment |
| CN101957285A (en) * | 2009-07-15 | 2011-01-26 | 中国科学院金属研究所 | Scratch simulation tester and using method thereof |
| 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 |
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