CN106525602B - One kind being used for the stretchable dynamic sealing device of high temperature and high pressure environment - Google Patents
One kind being used for the stretchable dynamic sealing device of high temperature and high pressure environment Download PDFInfo
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- CN106525602B CN106525602B CN201611087696.1A CN201611087696A CN106525602B CN 106525602 B CN106525602 B CN 106525602B CN 201611087696 A CN201611087696 A CN 201611087696A CN 106525602 B CN106525602 B CN 106525602B
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- axle sleeve
- stretch rod
- cavity
- rod
- sealing device
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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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0001—Type of application of the stress
- G01N2203/0003—Steady
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0017—Tensile
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/006—Crack, flaws, fracture or rupture
- G01N2203/0067—Fracture or rupture
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/022—Environment of the test
- G01N2203/0222—Temperature
- G01N2203/0226—High temperature; Heating means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/022—Environment of the test
- G01N2203/023—Pressure
- G01N2203/0232—High pressure
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/067—Parameter measured for estimating the property
- G01N2203/0676—Force, weight, load, energy, speed or acceleration
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sealing Devices (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses one kind to be used for the stretchable dynamic sealing device of high temperature and high pressure environment, including stretch rod and sensor, and the sensor connects stretch rod, and stretch rod outer sheath is equipped with axle sleeve, is provided with sealing device between the axle sleeve head end and stretch rod；The device further includes the power canceller for offsetting the active force that hyperbaric environment generates stretch rod.The present apparatus has comprehensively considered the influence of high temperature, hyperbaric environment to stretching device, it is equipped with the power canceller that different pressures generate external force to stretch rod, for carrying out tension test to the sample in kettle, completing the test of stress rupture sensibility under complex environment under high temperature and high pressure environment.The cooling system that the present apparatus uses spiralling heat dissipating ring to combine with coolant liquid; heat dissipating ring can increase the heat transfer area of heat; coolant liquid is flowed through in heat dissipation interannular spiral; coolant liquid path is without dead angle; and it is big with heat dissipating ring contact area; radiating efficiency is substantially increased, thus O-ring of the protection for sealing.
Description
Technical field
The present invention, which relates to, to be investigated material and stretches under high temperature and pressure complex environment or when slow tensile property, be used in high temperature and pressure
Under complex environment, a kind of dynamic sealing device for the stress rupture sensibility that test metal is combined with environment, and in particular to Yi Zhongyong
In the stretchable dynamic sealing device of high temperature and high pressure environment.
Background technique
With the high speed development of China's energy industry, the Service Environment of the industries device such as petroleum, chemical industry is more and more harsher,
The equipment being on active service under complex corrosion environment is also increasingly common, especially heavy to Performance of the equipment material under complex environment
It wants.In laboratory carry out high temperature and high pressure environment under test, carried out usually in high-temperature high-pressure reaction kettle, to the sample in kettle into
Row stress rupture sensitivity tests need to guarantee its performance when stretching device installs the carry out pulling action under high temperature and high pressure environment additional
Device.Currently, the external relevant device for having maturation, expensive；Home products still has related defects, such as: different pressures
To the additional force that stretch rod generates, the defect etc. for causing sensor measurement not accurate enough.Therefore it is badly in need of a kind of simple, efficient sealing
Device solves the problems, such as this.
Summary of the invention
In order to solve the problems in the existing technology, the present invention provides a kind of stretchable dynamic for high temperature and high pressure environment
Sealing device.The present apparatus has comprehensively considered the influence of high temperature, hyperbaric environment to stretching device, is equipped with different pressures and produces to stretch rod
The power canceller of raw external force, for carrying out tension test to the sample in kettle, completing under complex environment under high temperature and high pressure environment
The test of stress rupture sensibility.
The invention adopts the following technical scheme:
One kind being used for the stretchable dynamic sealing device of high temperature and high pressure environment, including stretch rod and sensor, the sensor
Stretch rod is connected, stretch rod outer sheath is equipped with axle sleeve, is provided with sealing device between the axle sleeve head end and stretch rod；The device
It further include the power canceller for offsetting the active force that hyperbaric environment generates stretch rod.
Preferably, the stretch rod is provided with the cavity a for being connected to hyperbaric environment with shaft room；The stretching rod area is full
Foot: Sp1=Sp2, in formula: Sp1The active area of upward power, S are generated to stretch rod for hyperbaric environmentp2For the pressure at cavity a
The active area of downward power is generated to stretch rod.
Preferably, the lower pull rod that the stretch rod includes upper connecting rod and is fixedly connected with upper connecting rod；The upper connecting rod and axis
Inner room is provided with the cavity a of connection hyperbaric environment, and the upper surface of the lower pull rod is the lower cavity wall of cavity a；The lower pull rod with
Shaft room is provided with even open to atmosphere cavity b；The sectional area of the upper connecting rod and lower pull rod meets: S3=S2-S1, in formula: S3
The active area of upward power, S are generated to lower pull rod for hyperbaric environment2For the upper surface area of lower pull rod, S1For upper connecting rod with
The cross-sectional area of lower pull rod contact position.
It is further preferred that the cavity a passes through the stomata a being arranged on upper connecting rod and the stomata being arranged on lower pull rod
B is connected to hyperbaric environment.
It is further preferred that the stomata a, stomata b include transverse air hole and vertical stomata.
Preferably, the two sides cavity b or more are provided with O-ring a, and the lower pull rod and shaft room pass through O-ring a
Sealing.
Preferably, the sealing device includes clamp nut, and the clamp nut is arranged in axle sleeve head end, the stretching
Bar passes through the through-hole on clamp nut, is sealed between stretch rod and clamp nut by O-ring b；Between axle sleeve and clamp nut
It is sealed by gasket.
Preferably, cooling system is provided on the axle sleeve.
It is further preferred that the cooling system includes coolant jacket and heat dissipating ring, offered on the axle sleeve can lead to it is cold
But the cavity c of liquid, spiralling heat dissipating ring is provided on the cavity c inner wall, and the two sides cavity c or more are equipped with O-ring c, institute
It states coolant jacket to be set on the outside of axle sleeve, coolant jacket is sealed with shaft room by O-ring c.
It is further preferred that being provided with the coolant inlet and cooling liquid outlet of connection cavity c on the coolant jacket；It is described
Axle sleeve lower part is equipped with annular convex platform, and the coolant jacket is fixed on annular convex platform.
Preferably, the axle sleeve is threadedly secured to high temperature and high pressure kettle and covers, and the stretch rod is stretched across kettle cover
Enter inside reaction kettle.
Preferably, it is connected through a screw thread between the upper connecting rod and lower pull rod, between axle sleeve and clamp nut.
The beneficial effects of the present invention are:
1) cooling system that the present invention is combined using spiralling heat dissipating ring with coolant liquid, heat dissipating ring can increase heat
Heat transfer area, coolant liquid heat dissipation interannular spiral flow through, coolant liquid path without dead angle, and with heat dissipating ring contact area
Greatly, radiating efficiency is substantially increased, thus O-ring of the protection for sealing.
2) hyperbaric environment bring influences the external force that mainly hyperbaric environment generates stretch rod, leads to force sensor measuring
It is not accurate enough.The present invention cleverly counteracts the power that pressure generates stretch rod in kettle by law of connected vessels, then tries when installing
After sample, when test does not start also, avoids and be effectively applied on stretch rod always under high pressure, be applied on sample indirectly, together
When be also applied on the force snesor on pull rod top, thoroughly prevent hyperbaric environment to draw sample tension measurement and force snesor
The adverse effect of force data acquisition.Just because of the ingehious design in the present invention, so that when the sample under hyperbaric environment in kettle
When being pulled off, it will not effectively up apply the data acquisition for influencing force snesor on a sensor always.No matter pressure P such as
What changes, and pressure P offsets each other to the power that stretch rod generates in kettle, and the accurate test sample stress value of force snesor energy reaches
Precise measurement purpose.
3) present invention is arranged O-ring between stretch rod and axle sleeve, clamp nut, and the O-ring can be spaced using multiple,
Guarantee that the device can use under ultra-high voltage environment.
4) present invention in cavity b be connected to atmosphere, when stretch rod during stretching, the space cavity b changes, but one
It is straight to keep at one atm, active force additionally will not be generated to stretch rod.
5) present apparatus can be used for that sample being loaded under certain stress by transmission system, then stops load, makes sample
The test under high temperature and high pressure environment is carried out under certain stress always, it can also be used to by dynamical system tensile sample always, until
Sample fracture, stress strain curve or slow stress strain curve of the test sample under high temperature and high pressure environment.The stretching travel of the device is big.
6) device can not only carry out tension test, can also carry out compression test.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is stretch rod corresponding position cross-sectional area schematic diagram of the present invention.
Fig. 3 a is stretch rod of the present invention pressure schematic diagram everywhere.
Fig. 3 b is stretch rod stress diagram of the present invention.
Fig. 4 is that multiple O-rings and gasket schematic diagram are used at each sealing of the invention.
Appended drawing reference:
Pull rod under 10- stretch rod 11- cavity a 12- cavity b 13- upper connecting rod 131- stomata a 14-
141- stomata b 142-O type circle a
20- sensor
30- axle sleeve 31- gasket 32- cavity c 33- annular convex platform 34-O type circle c
40- clamp nut 41-O type circle b
50- heat dissipating ring
60- coolant jacket 61- coolant inlet 62- cooling liquid outlet
70- fixture nut b
80- kettle cover.
Specific embodiment
Below in conjunction with drawings and examples, the technical solution in the present invention is clearly and completely described.Based on this hair
Embodiment in bright, every other implementation obtained by those of ordinary skill in the art without making creative efforts
Example, shall fall within the protection scope of the present invention.
As shown in Fig. 1,2, one kind being used for the stretchable dynamic sealing device of high temperature and high pressure environment, including stretch rod 10 and sensing
Device 20, the sensor 20 connect stretch rod 10, and 10 outer sheath of stretch rod is equipped with axle sleeve 30,30 head end of axle sleeve and stretch rod
Sealing device is provided between 10；The device further includes offsetting for offsetting hyperbaric environment to the power for the active force that stretch rod generates
Device.
The stretch rod 10 includes upper connecting rod 13 and the lower pull rod 14 being fixedly connected with upper connecting rod 13；The upper connecting rod 13 with
The cavity a11 of connection hyperbaric environment is provided between axle sleeve 30, the upper surface of the lower pull rod 14 is the lower cavity wall of cavity a11；Institute
State the open to atmosphere cavity b12 of the company of being provided between lower pull rod 14 and axle sleeve 30；The sectional area of the upper connecting rod 11 and lower pull rod 12
Meet: S3=S2-S1, in formula: S3The active area of upward power, S are generated to lower pull rod 14 for hyperbaric environment2For lower pull rod 14
Upper surface area, S1For the cross-sectional area with lower 14 contact position of pull rod of upper connecting rod 13；S2-S1Pressure pair at as cavity a11
Stretch rod 10 generates the active area of downward power.The cavity a11 pass through be arranged on upper connecting rod 13 stomata a131 and set
The stomata b141 connection hyperbaric environment on lower pull rod 14 is set, a linker is formed, makes in cavity a11 and in hyperbaric environment
Pressure P is equal.Stomata a131, the stomata b141 includes transverse air hole and vertical stomata.The two sides cavity b12 or more
It is provided with O-ring a142, is sealed between the lower pull rod 14 and axle sleeve 30 by O-ring a142.30 head end of axle sleeve is set
It is equipped with clamp nut, the stretch rod 10 passes through the through-hole on clamp nut 40, passes through O between stretch rod 10 and clamp nut 40
Type circle b41 sealing；It is sealed between axle sleeve 30 and clamp nut 40 by gasket 31.
Cooling system is provided on the axle sleeve 30.The cooling system includes coolant jacket 60 and heat dissipating ring 50, the axis
The cavity c32 that can lead to coolant liquid is offered on set 30, is provided with spiralling heat dissipating ring 50 on the cavity c32 inner wall,
The two sides cavity c32 or more are equipped with O-ring c34, and the coolant jacket 60 is set in 30 outside of axle sleeve, between coolant jacket 60 and axle sleeve 30
It is sealed by O-ring c (34).The coolant inlet 61 and cooling liquid outlet of connection cavity c32 are provided on the coolant jacket 60
62；30 lower part of axle sleeve is equipped with annular convex platform 33, and the coolant jacket 60 is placed on annular convex platform 33 and passes through fixture nut
B70 is fixed.
The axle sleeve 30 is threadedly secured on high temperature and pressure kettle cover 80, and the stretch rod 10 passes through kettle cover 80 and stretches
Enter inside reaction kettle.
It is connected through a screw thread between the upper connecting rod 13 and lower pull rod 14, between axle sleeve 30 and clamp nut 40.
Below with reference to Fig. 1-3b, the working principle of the invention is further described:
As shown in Fig. 1,2,3a, S1、S2、S3The respectively sectional area of 10 corresponding position of stretch rod.Pressure P in kettle is to drawing
Boom 10 generates upward power are as follows: F1=P × S3, cavity a11 in the stomata and kettle in stretch rod 10 by being connected to, therefore cavity a11
The pressure at place is also P, and the pressure at this generates downward power to stretch rod 10 are as follows: F2=P × (S2-S1), when design, makes stretch rod
Sectional area S at 10 31、S2、S3Meet S3=S2-S1, i.e. F1=F2.When pressure P changes, it is also able to satisfy F1=F2, realize
Different pressures P generates power to stretch rod 10 and offsets each other.
During stretching, the stress of stretch rod 10 is as shown in Figure 3b, F for the deviceSStretch rod 10 is applied for transmission device
The power added, FLFor the registration of sensor 20, FXIt is stretch rod 10 to the active force of sample in kettle, f is the friction inside the device
Power.When amendment to 20 registration of sensor, what sensor 20 measured is the drawing that transmission device is applied on stretch rod 10
Power, i.e. FL=FS, but we need to measure the power that sample is subject under stretch rod 10 by sensor 20, that is, need to meet FL=FX。
According to the stress condition of stretch rod 10, learn stretch rod 10 to the pulling force of sample are as follows:
FX=FS-F2+F1- f=FS-P×(S2-S1)+P×S3-f；
It arranges: Δ FL=FX-FS=F1-F2- f=P × (S3-S2+S1)-f；
Δ F in formulaLFor the correction value of sensor 20, when design, meets S3=S2-S1, i.e. Δ FL=-f, the condition are full very well
Foot need to only reset sensor 20 after stretching starts, and it is stretch rod 10 to sample in kettle that 20 registration of sensor, which can be realized,
Value of thrust realizes precise measurement and easy to operate.
As shown in figure 4, being provided with O between the stretch rod 10 and axle sleeve 30, between stretch rod 10 and clamp nut 40
Type circle, the O-ring can be spaced using multiple, and the multiple sealing rings of space set between the axle sleeve 30 and clamp nut 40
31, guarantee that the device can use under ultra-high voltage environment.
As shown in Figure 1, the protrusion of annular is provided on the bottom end of the axle sleeve 30 being inserted in 80 shrinkage pool of kettle cover, this
The protrusion of annular is for further enhancing leakproofness.
Claims (8)
1. one kind is used for the stretchable dynamic sealing device of high temperature and high pressure environment, including stretch rod (10) and sensor (20), described
Sensor (20) connects stretch rod (10), it is characterised in that: stretch rod (10) outer sheath is equipped with axle sleeve (30), the axle sleeve (30)
Sealing device is provided between head end and stretch rod (10)；The device further includes generating for offsetting hyperbaric environment to stretch rod
The power canceller of active force；
The stretch rod (10) includes upper connecting rod (13) and the lower pull rod (14) being fixedly connected with upper connecting rod (13)；The upper connecting rod
(13) the cavity a (11) for being connected to hyperbaric environment is provided between axle sleeve (30), the upper surface of the lower pull rod (14) is cavity a
(11) lower cavity wall；The open to atmosphere cavity b (12) of the company of being provided between the lower pull rod (14) and axle sleeve (30)；The upper connecting rod
(13) and the sectional area of lower pull rod (14) meets: S3=S2-S1, in formula: S3Lower pull rod (14) are generated for hyperbaric environment upward
Power active area, S2For the upper surface area of lower pull rod (14), S1For upper connecting rod (13) and lower pull rod (14) contact position
Cross-sectional area；
The cavity a (11) is by setting in the stomata a (131) on upper connecting rod (13) and the stomata being arranged on lower pull rod (14)
B (141) is connected to hyperbaric environment, forms a linker, makes equal with the pressure P in hyperbaric environment in cavity a (11).
2. according to claim 1 a kind of for the stretchable dynamic sealing device of high temperature and high pressure environment, it is characterised in that: institute
It states and is provided with the cavity a (11) for being connected to hyperbaric environment between stretch rod (10) and axle sleeve (30)；Stretch rod (10) sectional area is full
Foot: Sp1=Sp2, in formula: Sp1For hyperbaric environment stretch rod (10) are generated with the active area of upward power, Sp2For cavity a (11)
The pressure at place generates the active area of downward power to stretch rod (10).
3. according to claim 1 a kind of for the stretchable dynamic sealing device of high temperature and high pressure environment, it is characterised in that: institute
Stomata a (131), the stomata b (141) stated includes transverse air hole and vertical stomata.
4. according to claim 1 or 2 a kind of for the stretchable dynamic sealing device of high temperature and high pressure environment, feature exists
In: two sides are provided with O-ring a (142) the cavity b (12) up and down, pass through O between the lower pull rod (14) and axle sleeve (30)
Type circle a (142) sealing.
5. according to claim 1 a kind of for the stretchable dynamic sealing device of high temperature and high pressure environment, it is characterised in that: institute
The sealing device stated includes clamp nut (40), and the clamp nut (40) is arranged in axle sleeve (30) head end, the stretch rod
(10) through-hole on clamp nut (40) is passed through, is sealed between stretch rod (10) and clamp nut (40) by O-ring b (41)；
It is sealed between axle sleeve (30) and clamp nut (40) by gasket (31).
6. according to claim 1 a kind of for the stretchable dynamic sealing device of high temperature and high pressure environment, it is characterised in that: institute
It states and is provided with cooling system on axle sleeve (30).
7. according to claim 6 a kind of for the stretchable dynamic sealing device of high temperature and high pressure environment, it is characterised in that: institute
Stating cooling system includes coolant jacket (60) and heat dissipating ring (50), offers the cavity c that can lead to coolant liquid on the axle sleeve (30)
(32), it is provided with spiralling heat dissipating ring (50) on cavity c (32) inner wall, two sides are equipped with O-ring to cavity c (32) up and down
C (34), the coolant jacket (60) are set on the outside of axle sleeve (30), close by O-ring c (34) between coolant jacket (60) and axle sleeve (30)
Envelope.
8. according to claim 7 a kind of for the stretchable dynamic sealing device of high temperature and high pressure environment, it is characterised in that: institute
State the coolant inlet (61) and cooling liquid outlet (62) that connection cavity c (32) is provided on coolant jacket (60)；The axle sleeve
(30) lower part is equipped with annular convex platform (33), and the coolant jacket (60) is fixed on annular convex platform (33).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611087696.1A CN106525602B (en) | 2016-11-30 | 2016-11-30 | One kind being used for the stretchable dynamic sealing device of high temperature and high pressure environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611087696.1A CN106525602B (en) | 2016-11-30 | 2016-11-30 | One kind being used for the stretchable dynamic sealing device of high temperature and high pressure environment |
Publications (2)
| Publication Number | Publication Date |
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| CN106525602A CN106525602A (en) | 2017-03-22 |
| CN106525602B true CN106525602B (en) | 2019-06-11 |
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|---|---|---|---|
| CN201611087696.1A Active CN106525602B (en) | 2016-11-30 | 2016-11-30 | One kind being used for the stretchable dynamic sealing device of high temperature and high pressure environment |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107091778B (en) * | 2017-06-20 | 2023-05-12 | 中国科学院金属研究所 | Irradiation-promoted stress corrosion testing machine for four-axis slow strain rate stretching |
| CN107448607B (en) * | 2017-08-30 | 2023-07-14 | 武汉海王机电工程技术有限公司 | Sealing structure of downhole tool test device |
| CN107703014B (en) * | 2017-11-03 | 2024-04-09 | 岭东核电有限公司 | Impact abrasion tester for high-temperature and high-pressure environment |
| CN111060393A (en) * | 2019-04-03 | 2020-04-24 | 浙江工业大学 | Temperature-controllable high-pressure environment mechanical test box |
| CN112303233A (en) * | 2020-05-13 | 2021-02-02 | 襄阳博亚精工装备股份有限公司 | High temperature resistant, resistant high pressure gas moves cauldron body of seal structure |
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| JPH10197430A (en) * | 1996-12-28 | 1998-07-31 | Toko Tesutakku:Kk | High temperature high pressure material tester |
| CN201285358Y (en) * | 2008-11-12 | 2009-08-05 | 中国科学院金属研究所 | Apparatus for implementing loading under high temperature high pressure environment |
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|---|---|---|---|---|
| JPH10197430A (en) * | 1996-12-28 | 1998-07-31 | Toko Tesutakku:Kk | High temperature high pressure material tester |
| CN201285358Y (en) * | 2008-11-12 | 2009-08-05 | 中国科学院金属研究所 | Apparatus for implementing loading under high temperature high pressure environment |
| CN202597696U (en) * | 2012-05-15 | 2012-12-12 | 中国石油天然气股份有限公司 | Shaft and shaft hole sealing device in high-temperature and high-pressure environment |
| CN203658143U (en) * | 2013-11-30 | 2014-06-18 | 中国科学院金属研究所 | Loading device of high-temperature and high-pressure kettle |
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| Title |
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| "恶劣环境下的动密封结构设计";冯定 等;《润滑与密封》;20110430;第36卷(第4期);第87-89页 |
| "高温高压蒸汽条件下木材的拉伸应力松弛";程万里 等;《北京林业大学学报》;20070731;第29卷(第4期);第84-89页 |
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| CN106525602A (en) | 2017-03-22 |
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