CN105842081A - High-temperature lasting test device and method for environment corrosion - Google Patents
High-temperature lasting test device and method for environment corrosion Download PDFInfo
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- CN105842081A CN105842081A CN201610299271.0A CN201610299271A CN105842081A CN 105842081 A CN105842081 A CN 105842081A CN 201610299271 A CN201610299271 A CN 201610299271A CN 105842081 A CN105842081 A CN 105842081A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/18—Performing tests at high or low temperatures
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
- G01N17/006—Investigating resistance of materials to the weather, to corrosion, or to light of metals
Abstract
The invention relates to a high-temperature lasting test device and method for environment corrosion. The test device comprises a quartz sealing system arranged in a high-temperature lasting test machine, and a gas distribution system which is communicated with the quartz sealing system and can provide corrosive gas or water vapor. The quartz sealing system comprises a quartz tube used for carrying a metal sample, an upper end flange used for sealing the upper end of the quartz tube is arranged at the upper end of the quartz tube, a lower end flange used for sealing the lower end of the quartz tube is arranged at the lower end of the quartz tube, the upper end flange is provided with gas outlet holes communicated with the quartz tube, and the lower end flange is provided with corrosive gas inlet holes and water vapor inlet holes, wherein the corrosive gas inlet holes and the water vapor inlet holes are communicated with the quartz tube. The high-temperature lasting test device and method for environment corrosion are especially suitable for testing the high-temperature lasting performance of metal materials in harsh serving environments, the problem that in the prior art, tests can only be carried out under high-temperature dry air is solved, the device can carry out high-temperature lasting tests for special environment atmospheres, and the lasting performance in certain special atmospheres such as smoke and water vapor can be truly reflected.
Description
Technical field
The present invention relates to Metal Materials At High Temperature duration running field, particularly to a kind of environmental corrosion stress-rupture tester device and
Method.
Background technology
When one free-revving engine of stress-rupture tester is to measure material at a certain temperature by permanent load effect, holding of regulation
The maximum stress value of fracture, i.e. creep rupture strength is not caused in the continuous time.Additionally, also can obtain the elongation after fracture of material,
The mechanical property parameters such as the contraction percentage of area and sensitivity factor of notch.By stress-rupture tester, can research material (outer at plus load
Power) act on the Fracture of performance, machine under lower or load and environmental factors (temperature, medium and loading speed etc.) synergy
Reason and influence factor thereof, the design and select material for high-temperature component such as boiler, pipeline etc. provides important evidence.
At present, evaluation and the existing standard of test to the high temperature endurance performance of metal material refer to, such as China's standard
GBT2039-1997, Unite States Standard ASTM E139, European standard EN 10291, Nippon Standard JIS Z2271 and international mark
Quasi-ISO 204 etc..The requirement of typically no regulation experimental atmosphere in these standards, only ASTM E139 explanation is easily subject to when sample
Can test under vacuum or inert gas shielding environment during environmental damage.Therefore, the stress-rupture tester generally carried out is static empty
Gas atmosphere is carried out.
In production practices, the work condition environment of some high temperature pressure corrosions can be run into, such as the Superheater/Reheater in coal-burning boiler
Extremely harsh Deng the Service Environment of high temperature hardware: while bearing High Temperature High Pressure, pipe outer wall and inwall receive flue gas respectively
Corrosion with steam and oxidation.And practice have shown that, surrounding medium (such as temperature, medium etc.) is to the mechanical property of material often
There is important impact.Under the synergy of plus load and Korrosionsmedium, material list reveals completely different and is often
The most inferior mechanical property.Therefore, metal material enduring quality in same temperature, air can not reflect it truly
Enduring quality in some special atmospheres such as flue gas, steam.In this case, metal material need to be carried out special environment
Under the conditions of the test of high temperature endurance performance.But, current Stress-repture tester both domestic and external is generally just for high temperature dry air ring
Border, does not has the function carrying out stress-rupture tester for special environment atmosphere.For realizing metal material in special environment atmosphere
In the test of high temperature endurance performance, high temperature endurance performance test can be carried out in high temperature, corrosive atmosphere in the urgent need to a set of
Assay device.
Summary of the invention
For overcoming the problems of the prior art, it is an object of the invention to provide a kind of environmental corrosion stress-rupture tester device and
Method, the method is capable of the test of the high temperature endurance performance of metal material under special environment atmosphere.
In order to achieve the above object, the technical solution used in the present invention is:
A kind of stress-rupture tester device of environmental corrosion, including the quartzy sealing system being arranged within Stress-repture tester,
And be connected with quartz sealing system and the air distribution system of corrosive gas or steam can be provided；
Described quartz sealing system include the quartz ampoule for placing test button and both ends open, quartz ampoule upper end be provided with for
The upper flanges of sealed silica envelope upper end, lower end is provided with the lower end flanges for sealed silica envelope lower end, and upper flanges is arranged
There is the venthole being connected with quartz ampoule, lower end flanges is provided with the corrosive gas air inlet being connected with quartz ampoule and water steams
Gas air inlet.
Described air distribution system includes gas mixing device and water vapor generation device.
Described gas mixing device includes that the gas circuit that multichannel is connected with mixed gas tank, each road include gas cylinder, and the outlet of gas cylinder is through subtracting
Pressure valve, gate valve, mass flow controller, check-valves are connected with mixed gas tank entrance, and the outlet of mixed gas tank is entered with corrosive gas
Pore is connected.
Ultrapure water machine that described water vapor generation device includes being connected, storage tank, peristaltic pump, heater, the outlet of heater
It is connected with steam air inlet；The input of ultrapure water machine is connected with water pipe.
Described upper flanges and lower end flanges are hubbed clip-on-welding flange；Described quartz ampoule upper end is provided with upper end metal pull bar, on
End metal pull bar through upper flanges and is tightly connected with upper flanges, and quartz ampoule lower end is provided with lower end metal pull bar, lower end gold
Belong to pull bar through lower end flanges and to be connected with lower end flange seal.
Described test button is fixed by upper end-fixture and lower end fixture, and upper end-fixture is connected by screw threads for fastening with upper end metal pull bar,
Lower end fixture is connected by screw threads for fastening with lower end metal pull bar.
The side of upper flanges and lower end flanges all offers inlet opening and apopore, and each flange is internally provided with cooling duct,
Cooling water is flowed into cooling duct by inlet opening, and is flowed out by apopore.
Being additionally provided with the condensed water apopore being connected with quartz ampoule in lower end flanges, condensed water apopore connects condensation water tank；
Described gas outlet connects purified residual gas device.
The test method of the stress-rupture tester device of a kind of environmental corrosion, comprises the following steps:
1) being clamped to by test button between upper end-fixture and lower end fixture, the other end of upper end-fixture and lower end fixture is respectively
Be connected by screw threads for fastening with upper end metal pull bar, lower end metal pull bar, subsequently by mounted test button, upper end-fixture,
Lower end fixture and upper end metal pull bar, lower end metal pull bar load in quartz ampoule；
2) end flanges and lower end flanges, sealed silica envelope are installed；
3) sealed silica envelope that will be equipped with test button is arranged on the main frame of Stress-repture tester；
4) " loading " function in Stress-repture tester controller is started, in the loaded state regulation endurance testing machine top thick stick
Bar levelling device, it is ensured that balanced pointers points to " 0 " scale；
5) by " power clearing " function in Stress-repture tester controller, the power of above-mentioned loading is reset；
6) " loading " function being again started up in Stress-repture tester controller, makes endurance testing machine be in unloaded state, and
That upwards puts into 1000N in weight tray preloads counterweight；By " above move, move down " in Stress-repture tester controller
Function, clamps test button；Start " automatically " function in Stress-repture tester controller, make motor automatic leveling, from
And eliminate the gap between each connector；
7) adjust the position of opposite opened high-temperature heater, make test button be positioned in the middle part of opposite opened high-temperature heater, and close with asbestos
Seal upper and lower fire door to ensure furnace temperature equilibrium；
8) three thermocouples are sequentially inserted into the hole, three, upper, middle and lower of opposite opened high-temperature heating furnace body, make thermocouple the deepest
Enter to burner hearth, fix thermocouple subsequently；
9) recirculated cooling water is connected to upper flanges and lower end flanges；
10) air distribution system is connected with corrosive gas air inlet, water vapour air inlet by air inlet pipeline, by corrosivity gas
Body air inlet, the gas of water vapour air inlet flow through quartz ampoule, venthole flow out；
11) according to test demand, remaining counterweight is placed in lower weight tray；
12) open Stress-repture tester temperature switch board, test temperature parameter is set；
13) open computer and ups power, carry out parameter setting: parameter includes sample information, standard and method, insulation model
Enclose, temperature retention time, total loading and initial loading；
14) open recirculated cooling water, in quartz ampoule, be passed through corrosive gas or steam；
15) " preservation " and " beginning " key on Stress-repture tester Testing Software interface is clicked on, simultaneously on opening controller
Heater switch, start test；
16) off-test, closes gas and recirculated cooling water after being cooled to room temperature, completes test.
Step 11) in add the counterweight of 100N to offset the error that frictional force is brought；Step 12) in time temperature is set higher than examination
Test temperature 5 DEG C to realize temperature-compensating.
Compared with prior art, the invention have the benefit that
The present invention, by being fixed in the quartz ampoule of sealing by test button, is obtained in that required corrosive gas from air distribution system
Or steam, corrosive gas/steam is passed through in quartz ampoule by connecting line, it is achieved test button aggressive atmosphere/
High temperature endurance performance test in steam, the present invention is especially suitable for testing metal material high temperature in harsh Service Environment and holds
Performance, overcomes the problem being only capable of carrying out testing under high temperature dry air in prior art for a long time, and this device can be for special environment
Atmosphere carries out stress-rupture tester, truly reflection metal material enduring quality in some special atmospheres such as flue gas, steam.
Due to the fact that only arrange on the basis of conventional high-temperature endurance testing machine quartz sealing system and can provide corrosive gas or
The air distribution system of steam, can realize metal material high temperature endurance performance test in corrosion/oxidation atmosphere, so this dress
Put simple in construction, it is easy to operation.
Further, corrosive gas/steam reacted with test button enters purified residual gas device by connecting line
/ condensation water tank, to prevent pollution environment and water resource from recycling.
The present invention, by being sealed in quartz ampoule by test button, is passed through by distribution system through the air inlet of lower end flanges in quartz ampoule
The corrosive gas put under unified central planning or steam, residual gas reacted with test button flows out to residual through the gas outlet of upper flanges
Remaining gas cleaning plant carries out purified treatment, utilizes opposite opened high-temperature heater to heat test button, passes through software set
The parameter such as test temperature and loading force, it is achieved test button is the test of high temperature endurance performance in corrosivity or oxidizing atmosphere.Should
Method is easy, it is achieved that the test to test button high temperature endurance performance in special environment atmosphere, provides for production practices
Important evidence.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the connection diagram of test button and fixture；
Fig. 3 is the sectional view in Fig. 1 along line A-A；
Fig. 4 is the structural representation of gas mixing device；
Fig. 5 is the structural representation of steam raising plant.
Wherein, 1 is main frame, and 2 is opposite opened high-temperature heater, and 3 is quartz ampoule, and 4 is upper end-fixture, and 5 is lower end fixture, 6
For upper flanges, 7 is lower end flanges, and 8 is inlet opening, and 9 is apopore, and 10 is test button, and 11 enter for corrosive gas
Pore, 12 is water vapour air inlet, and 13 is venthole, and 14 is condensed water apopore, and 15 is decompressor, and 16 is gate valve, 17
For mass flow controller, 18 is check-valves, and 19 is mixed gas tank, and 20 is ultrapure water machine, and 21 is storage tank, and 22 is peristaltic pump,
23 is heater.
Detailed description of the invention
The invention will be further described with specific embodiment below in conjunction with the accompanying drawings, to describe technical scheme in detail.
Seeing Fig. 1-Fig. 5, the Stress-repture tester main frame in the present invention is existing apparatus.The high temperature of environmental corrosion of the present invention is held
Assay device is used to realize what metal material high temperature endurance performance in aggressive atmosphere or oxidizing atmosphere was tested for a long time；Including
Quartzy sealing system, air distribution system and the purified residual gas device being arranged on Stress-repture tester main frame 1.
Seeing Fig. 1, Fig. 2 and Fig. 3, the high temperature endurance performance that Stress-repture tester main frame is metal material tests offer power and heat
Source, presss from both sides including frame, dynamical system, drive system, electrical system, pressure transducer, controller, heating system and high temperature
Tool；Dynamical system, drive system, electrical system and pressure transducer are all embedded in frame；Controller is placed on frame.
Described dynamical system is motor driving power system.
Described drive system is made up of Timing Belt, worm and wormwheel reductor and ball wire bar pair.Toothed belt transmission is by the fortune of motor
Dynamic transmission without reservation is gone down, and avoids stall；Worm and wormwheel reductor has latching characteristics, and in process of the test, prominent chance is short
Time have a power failure time keep test force；Ball wire bar pair utilizes ball moving, and staring torque is minimum, it is ensured that accurate Fine Feed, with
Time sport efficiency is high, it is little to generate heat, high speed feed motion can be realized.
Described electrical system is testing machine digital newspaper industry system based on DSP, it is achieved microcomputer control, complete-digital closed-loop and figure
The functions such as shape shows.
Described heating system is made up of temperature controller and opposite opened high-temperature heater.Temperature controller uses electronic PID to control
The temperature of regulation opposite opened high-temperature heater.Opposite opened high-temperature heater includes stainless steel casing and the stove being located in stainless steel casing
Thorax, is provided with heating element heater and thermocouple in burner hearth, be provided with heat-insulation layer between burner hearth and stainless steel casing, and stainless steel casing is with persistently
It is slidably connected between the frame of testing machine, can be adjusted according to the position of the position opposite opened high-temperature heater of sample.
Described high-temperature clamp is prepared from by nickel-base alloy anti-corrosion, high intensity, including upper end-fixture 4 and lower end fixture 5,
For clamping test button.The upper end of upper end-fixture 4 and the lower end of upper end metal pull bar, lower end and the lower end gold of lower end fixture 5
Belong to pull bar upper end all connected by screw threads for fastening, the upper end of upper end metal pull bar, lower end metal pull bar lower end respectively with high temperature
Endurance testing machine main frame is connected by screw threads for fastening.
Quartz sealing system includes the quartz ampoule 3 of both ends open, and upper flanges 6 for sealed silica envelope 3 two ends and under
End flanges 7.
Upper flanges 6 and lower end flanges 7 are hubbed clip-on-welding flange, and its side all offers inlet opening 8 and apopore 9, often
Individual flange is internally provided with cooling duct, and cooling water is flowed into cooling duct by inlet opening 8, and flowed out by apopore 9, finally converges
Enter condensation water tank, to prevent the too high inefficacy of flange temperature；The top end face of upper flanges 6 offers and going out that quartz ampoule 3 is connected
Pore 13, gas outlet 13 connects purified residual gas device；Offer on the bottom face of lower end flanges 7 and quartz ampoule 3 phase
Corrosive gas air inlet 11, steam air inlet 12 and the condensed water apopore 14 of connection.
Air distribution system includes gas mixing device and water vapor generation device.Gas mixing device and water vapor generation device can be single
Solely work.
Seeing Fig. 4, gas mixing device includes the gas circuit that multichannel is connected with mixed gas tank 19, and each road includes gas cylinder, gas cylinder
Export through air relief valve 15, gate valve 16, mass flow controller 17 and check-valves 18, check-valves 18 and stainless steel reinforced concrete gas tank 19
Entrance is connected, and the outlet of mixed gas tank 19 is connected with corrosive gas air inlet 11.Connected by rustless steel pipeline between each parts
Connect.The built-in gas of gas cylinder is nitrogen, sulfur dioxide or nitric oxide.According to concrete experimental condition, multiple gas can be selected
Bottle, and each gas cylinder fills different gas.Gas in gas cylinder flow to through gate valve 16 after rustless steel air relief valve 15 reduces pressure
Mass flow controller 17, becomes the gas that flow is certain under the regulation of mass flow controller 17, then enters through check-valves 18
Enter to stainless steel reinforced concrete gas tank 19, with enter to stainless steel reinforced concrete gas tank 19 through similar path in other gas according to set proportion
Mixing.The volume of stainless steel reinforced concrete gas tank 19 can configure as required.Additionally, the temperature of stainless steel reinforced concrete gas tank 19 is adjustable,
To ensure that various gases are sufficiently mixed on the premise of not reacting.
Air distribution system is capable of the mixture of various proportional gas, the good gas of mixture through connecting line by the corruption below quartz ampoule 3
In erosion property gas inlet hole 11 is flowed into quartz ampoule 3 and reacting with test button 10, reacted gas is through quartz ampoule 3
The venthole 13 of top flows out, and eventually enters into purified residual gas device and is neutralized, purifies, in order to avoid polluting environment.Remaining
Gas cleaning plant is made up of multiple wide mouthed bottles, holds different types of aqueous slkali in the most different wide mouthed bottles.
Seeing Fig. 5, water vapor generation device includes the ultrapure water machine 20 being arranged on pipeline and being connected, storage tank 21, wriggles
Pump 22, heater 23, the outlet of heater 23 is connected with steam air inlet 12；The input of ultrapure water machine 20 with from
Carry out water pipe to connect.Ultrapure water machine 20 is for preparing oxygen meltage or the ultralow water of ion concentration.Heater 23 is by preheating furnace and temperature
Control instrument composition, can be heated to uniform temperature by ultra-pure water and make steam.Wherein, preheating furnace is cylindrical, and its shell is
Rustless steel, is provided with spiral helicine stainless steel tube, heating element heater and thermocouple in burner hearth, be provided with guarantor between burner hearth and stainless steel casing
Temperature layer.The pure water prepared by ultrapure water machine 20, in the helical form stainless steel tube that peristaltic pump 22 is pumped in preheating furnace, is heated into
In entering into quartz ampoule 3 by water vapour air inlet 12 below quartz ampoule 3 after steam and react with test button 10,
Reacted gas venthole 13 in upper flanges 6 flows out and finally flows into condensation water tank.For preventing steam at quartz ampoule
The two ends condensation hydrops of 3, also sets condensed water apopore 14 in the bottom surface of lower end flanges 7, and condensed water can be by this condensed water water outlet
Hole 14 flow to condensation water tank.
Use the stress-rupture tester device of above-mentioned environmental corrosion, it is achieved metal material high temperature in corrosivity or oxidizing atmosphere is held
The method of performance test for a long time, comprises the following steps:
1) prepare sample and measure its size, selecting suitable high-temperature clamp (including upper end-fixture 4 and lower end fixture 5)；
2) switch on power, start the main frame 1 of Stress-repture tester；
3) test button 10 is clamped and fastened between upper end-fixture 4 and lower end fixture 5, then upper end-fixture 4 and lower end are pressed from both sides
The other end of tool 5 is connected by screw threads for fastening with upper end metal pull bar, lower end metal pull bar, respectively subsequently by mounted metal
Sample 10, high-temperature clamp and metal pull bar entirety load in quartz ampoule 3；
4) install end flanges 6 and lower end flanges 7, and pad upper sealing washer, make the upper end of quartz ampoule 3 and upper end metal pull bar,
The lower end of quartz ampoule 3 and lower end metal pull bar are fastened and connected by upper flanges 6 and lower end flanges 7 respectively；
5) air-tightness is checked；
6) ensureing that the direction of upper flanges 6 and lower end flanges 7 is errorless, the sealed silica envelope 3 that will be equipped with test button 10 is installed
On the main frame 1 of endurance testing machine, and check again for air-tightness；
7) start " loading " function in controller, in the loaded state regulation endurance testing machine two lever levelling device, protect
Card balanced pointers points to " 0 " scale；
8) by " power clearing " function in controller, the power of above-mentioned loading is reset；
9) " loading " function being again started up in controller, makes endurance testing machine be in unloaded state, and upwards in weight tray
That puts into 1000N preloads counterweight；By " above move, the move down " function in controller, clamp test button；Start and control
" automatically " function in device, makes motor automatic leveling, thus eliminates the gap between each connector；
10) adjust the position of opposite opened high-temperature heater 2, make test button 10 be positioned at the middle part of heating furnace 2, and close with asbestos
Seal upper and lower fire door to ensure furnace temperature equilibrium；
11) three thermocouples are sequentially inserted into the hole, three, upper, middle and lower of opposite opened high-temperature heater 2, make thermocouple the deepest
Enter to burner hearth, fix thermocouple subsequently；
12) whether the upper, middle and lower segment stove silk utilizing circuit tester to measure opposite opened high-temperature heater 2 turns on, and is between any two
No short circuit, the most short-circuit between stove silk and furnace shell, continue following operation if there is no problem；
14) connect recirculated cooling water in upper flanges 6 and lower end flanges 7, check that water route also guarantees inlet opening 8, apopore 9
The pipeline at place does not leaks；
15) it is respectively mounted air inlet pipeline to install to giving vent to anger to corrosive gas air inlet 11, water vapour air inlet 12, outlet pipe
Hole 13, and check sealing, need to adjust each gas flow according to test；
16) according to test demand, remaining counterweight is placed in lower weight tray；In view of quartz ampoule 3 external seal packing ring and upper end gold
Belong to and there is frictional force between pull bar, lower end metal pull bar, in test will add the counterweight of 100N to offset what frictional force was brought
Error；
17) open temperature switch board, test temperature parameter is set；In view of the existence of quartz ampoule 3, thermocouple only records quartz ampoule
The temperature of 3 outer walls, higher than test temperature 5 DEG C to realize temperature-compensating when arranging temperature；
18) open computer and ups power, firing test software, carry out as samples information, standard and method, test temperature,
The parameters such as heat-preserving range, temperature retention time, total loading, initial loading and shutdown are arranged are arranged；
19) open recirculated cooling water, be passed through mixed gas, it is ensured that in purified residual gas device, the collection of tail gas is effective；
20) clicking on " preservation " and " beginning " key on Testing Software interface, the heater switch on opening controller, opens simultaneously
Begin to test；
21) off-test, closes heater switch, closes gas and recirculated cooling water, take off quartz ampoule 3 after being cooled to room temperature,
Take out test button 10, close testing machine power supply or carry out lower battery of tests, test data sheet and data processing software and can realize sample
Registration, testing program and parameter set and input, data acquisition and draw curve, automatically record and preserve data, data process
Export with test report, thus complete test.
Claims (10)
1. the stress-rupture tester device of an environmental corrosion, it is characterised in that: include being arranged within Stress-repture tester
Quartz sealing system, and be connected with quartz sealing system and the air distribution system of corrosive gas or steam can be provided；
Described quartz sealing system includes the quartz ampoule (3) for placing test button (10) and both ends open, quartz ampoule (3)
Upper end is provided with the upper flanges (6) for sealed silica envelope (3) upper end, and lower end is provided with under sealed silica envelope (3)
The lower end flanges (7) of end, upper flanges (6) is provided with the venthole (13) being connected with quartz ampoule (3), lower end flanges
(7) the corrosive gas air inlet (11) and steam air inlet (12) being connected with quartz ampoule (3) it is provided with on.
The stress-rupture tester device of a kind of environmental corrosion the most according to claim 1, it is characterised in that: described distribution system
System includes gas mixing device and water vapor generation device.
The stress-rupture tester device of a kind of environmental corrosion the most according to claim 2, it is characterised in that: described gas mixes
Equipped putting the gas circuit including that multichannel is connected with mixed gas tank (19), each road includes gas cylinder, the outlet of gas cylinder through air relief valve (15),
Gate valve (16), mass flow controller (17), check-valves (18) are connected with mixed gas tank (19) entrance, mixed gas tank (19)
Outlet be connected with corrosive gas air inlet (11).
The stress-rupture tester device of a kind of environmental corrosion the most according to claim 2, it is characterised in that: described steam
Ultrapure water machine (20) that generating means includes being connected, storage tank (21), peristaltic pump (22), heater (23), heater
(23) outlet is connected with steam air inlet (12)；The input of ultrapure water machine (20) is connected with water pipe.
The stress-rupture tester device of a kind of environmental corrosion the most according to claim 1, it is characterised in that: described upper hold-carrying
Blue (6) and lower end flanges (7) are hubbed clip-on-welding flange；Described quartz ampoule (3) upper end is provided with upper end metal pull bar, on
End metal pull bar through upper flanges (6) and is tightly connected with upper flanges (6), and quartz ampoule (3) lower end is provided with lower end gold
Belonging to pull bar, lower end metal pull bar through lower end flanges (7) and is tightly connected with lower end flanges (7).
The stress-rupture tester device of a kind of environmental corrosion the most according to claim 5, it is characterised in that: described metal tries
Sample (10) is fixed by upper end-fixture (4) and lower end fixture (5), and upper end-fixture (4) and upper end metal pull bar are tight by screw thread
Being solidly connected, lower end fixture (5) is connected by screw threads for fastening with lower end metal pull bar.
The stress-rupture tester device of a kind of environmental corrosion the most according to claim 1, it is characterised in that: upper flanges (6)
All offering inlet opening (8) and apopore (9) with the side of lower end flanges (7), each flange is internally provided with cooling duct,
Cooling water is flowed into cooling duct by inlet opening (8), and is flowed out by apopore (9).
The stress-rupture tester device of a kind of environmental corrosion the most according to claim 1, it is characterised in that: lower end flanges (7)
On be additionally provided with the condensed water apopore (14) being connected with quartz ampoule (3), condensed water apopore (14) connects condensed water
Case；Described gas outlet (13) connects purified residual gas device.
9. the test method of the stress-rupture tester device of an environmental corrosion, it is characterised in that comprise the following steps:
1) test button (10) is clamped between upper end-fixture (4) and lower end fixture (5), upper end-fixture (4)
It is connected by screw threads for fastening with upper end metal pull bar, lower end metal pull bar respectively with the other end of lower end fixture (5), subsequently will peace
Test button (10), upper end-fixture (4), lower end fixture (5) and the upper end metal pull bar, the lower end metal pull bar that install load
In quartz ampoule (3)；
2) end flanges (6) and lower end flanges (7), sealed silica envelope (3) are installed；
3) sealed silica envelope (3) that will be equipped with test button (10) is arranged on the main frame (1) of Stress-repture tester；
4) " loading " function in Stress-repture tester controller is started, in the loaded state regulation endurance testing machine top thick stick
Bar levelling device, it is ensured that balanced pointers points to " 0 " scale；
5) by " power clearing " function in Stress-repture tester controller, the power of above-mentioned loading is reset；
6) " loading " function being again started up in Stress-repture tester controller, makes endurance testing machine be in unloaded state, and
That upwards puts into 1000N in weight tray preloads counterweight；By " above move, move down " in Stress-repture tester controller
Function, clamping test button (10)；Start " automatically " function in Stress-repture tester controller, make motor automatic leveling,
Thus eliminate the gap between each connector；
7) adjust the position of opposite opened high-temperature heater (2), make test button (10) be positioned at opposite opened high-temperature heater (2)
Middle part, and with the upper and lower fire door of asbestos seal to ensure furnace temperature equilibrium；
8) three thermocouples are sequentially inserted into the hole, three, upper, middle and lower of opposite opened high-temperature heater (2) body of heater, make thermocouple
Go deep into completely to burner hearth, fix thermocouple subsequently；
9) recirculated cooling water is connected to (7) in upper flanges (6) and lower end flanges；
10) air distribution system is connected with corrosive gas air inlet (11), water vapour air inlet (12) by air inlet pipeline, logical
Excessive erosion gas inlet hole (11), the gas of water vapour air inlet (12) flow through quartz ampoule (3), venthole (13) flow
Go out；
11) according to test demand, remaining counterweight is placed in lower weight tray；
12) open Stress-repture tester temperature switch board, test temperature parameter is set；
13) open computer and ups power, carry out parameter setting: parameter includes sample information, standard and method, insulation model
Enclose, temperature retention time, total loading and initial loading；
14) open recirculated cooling water, in quartz ampoule, be passed through corrosive gas or steam；
15) " preservation " and " beginning " key on Stress-repture tester Testing Software interface is clicked on, simultaneously on opening controller
Heater switch, start test；
16) off-test, closes gas and recirculated cooling water after being cooled to room temperature, completes test.
The test method of the stress-rupture tester device of environmental corrosion the most according to claim 9, it is characterised in that step
11) counterweight of 100N is added in offset the error that frictional force is brought；Step 12) in time temperature is set higher than test temperature 5 DEG C
To realize temperature-compensating.
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