CN106065948A - A kind of memorial alloy ring seal device - Google Patents
A kind of memorial alloy ring seal device Download PDFInfo
- Publication number
- CN106065948A CN106065948A CN201610700955.7A CN201610700955A CN106065948A CN 106065948 A CN106065948 A CN 106065948A CN 201610700955 A CN201610700955 A CN 201610700955A CN 106065948 A CN106065948 A CN 106065948A
- Authority
- CN
- China
- Prior art keywords
- memorial alloy
- shape
- circle
- urceolus
- external memory
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/08—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with exclusively metal packing
- F16J15/0806—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with exclusively metal packing characterised by material or surface treatment
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C14/00—Alloys based on titanium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C19/00—Alloys based on nickel or cobalt
- C22C19/03—Alloys based on nickel or cobalt based on nickel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/08—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with exclusively metal packing
- F16J15/0818—Flat gaskets
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/08—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with exclusively metal packing
- F16J15/0818—Flat gaskets
- F16J2015/085—Flat gaskets without fold over
Abstract
The invention discloses a kind of memorial alloy ring seal device, this device mainly includes urceolus, memorial alloy circle and end cap, and memorial alloy circle is divided into External Memory alloy ring and interior memorial alloy circle.During intensification phase transformation, memorial alloy circle becomes high-temperature-phase shape, the shape overall shrinkage of External Memory alloy ring, the overall swell of the shape of interior memorial alloy circle, the liquid in outer cartridge or gas medium can realize sealing function to thin-walled.During cooling phase transformation, memorial alloy circle becomes low-temperature phase shape, the overall swell of the shape of External Memory alloy ring, and the shape overall shrinkage of interior memorial alloy circle can carry out free dismounting to sealing device.Under sealing state, theoretical value zero that what External Memory alloy ring and interior memorial alloy circle produced on thin-walled urceolus surfaces externally and internally make a concerted effort, the risk of leakage that the unilateral stress deformation of thin-walled urceolus brings can be avoided.The memorial alloy ring seal device of the present invention is long for sealing life, and will not reduce the medium-tight effect in the outer cartridge of thin-walled.
Description
Technical field
The invention belongs to technical field of sealing technology, be specifically related to a kind of memorial alloy ring seal device.
Background technology
At present, the sealing means for the liquid medium in the outer cartridge of thin-walled or gas medium mainly has two kinds, one,
Built-in elastic seal with elastometic washer mode.First, elastic rubber ring is put into the radial seal groove of axial workpiece；Then, will
Axial workpiece and elastic rubber ring together fill in thin-walled urceolus endoporus, and realization on thin-walled urceolus inner cylinder face radially contacts with close
Envelope.When radially contacting with pressure and being excessive, it will cause stress deformation inside at thin-walled urceolus seal interface to produce risk of leakage, with
When, prolongation over time, the power that radially contacts with after the elastic rubber ring life-span is aging reduces, and also can produce risk of leakage, after these
Fruit all can reduce its sealing property.Its two, external memorial alloy circle sealing means, this kind of memorial alloy is usually one-way memory effect
The alloy answered.First, under low-temperature condition, external memorial alloy circle endoporus is expanded；Then, external memorial alloy snare is filled
In two sections of thin-walled urceolus butt joint interface positions；Finally, external memorial alloy circle is heated, when it produces intensification phase transformation, shape
Overall shrinkage, realizes radially contacting with sealing on thin-walled urceolus external cylindrical surface.When radially contacting with pressure and being excessive, it will cause thin
Outside at wall urceolus seal interface, stress deformation produces risk of leakage, and this can reduce its sealing property.In patent CN2828507 and
In US6498952, all propose the temperature memory effect utilizing memorial alloy and carry out the assembling of elastic rubber ring as driving force,
Its invention thought is, assembles elastic rubber ring between memorial alloy and connected tube, produces intensification phase when temperature exceedes normal temperature
During change, memorial alloy is punctured into predetermined shape, and elastic rubber ring appearance and size is compressed by the convergent force of generation, at connected tube
Realize on external cylindrical surface radially contacting with sealing.But, the sealing means involved by these patents is primarily adapted for use in heavy wall and is connected
Pipe, and the sealing of cartridge outside thin-walled cannot be applicable to.
Content of the invention
The technical problem to be solved there is provided a kind of memorial alloy ring seal device.
The memorial alloy ring seal device of the present invention, including urceolus, memorial alloy circle and end cap, is characterized in: described
Memorial alloy circle is divided into External Memory alloy ring and interior memorial alloy circle, and urceolus is cylindrical shape, one end end cap seal of cylinder, separately
One end open, memorial alloy circle in the inner surface suit of urceolus, outer surface is set with External Memory alloy ring；
Described External Memory alloy ring shape closely connects with the outer cylinder surface I of urceolus and the outer cylinder surface II of end cap after shrinking
Touch, completely disengage from the outer cylinder surface I of urceolus and the outer cylinder surface II of end cap after External Memory alloy ring shape swell, interior note
Recall inner periphery II close contact with the inner periphery I of urceolus and end cap, interior memorial alloy after alloy ring shape swell
Loop-shaped completely disengages from the inner periphery I of urceolus and the inner periphery II of end cap after shrinking；
Described External Memory alloy ring and interior memorial alloy loop material are the marmems with double-pass memory effect.
Described marmem is NiTi base memorial alloy, the percentage by weight of each component in NiTi base memorial alloy
For:
Titanium 35% ~ 38%；
Nickel 47% ~ 52%；
Niobium 13% ~ 15%.
Described External Memory alloy ring is when room temperature environment carries out intensification phase transformation, and shape understands overall shrinkage, becomes high-temperature-phase
Shape；External Memory alloy ring is when room temperature environment carries out cooling phase transformation, and shape is understood overall swell, become low-temperature phase shape.
Described interior memorial alloy circle is when room temperature environment carries out intensification phase transformation, and shape understands overall swell, becomes high-temperature-phase
Shape；Interior memorial alloy circle is when room temperature environment carries out cooling phase transformation, and shape is understood overall shrinkage, become low-temperature phase shape.
The memorial alloy ring seal device principle of the present invention is: during intensification phase transformation, memorial alloy circle becomes high-temperature-phase shape,
Wherein, the shape overall shrinkage of External Memory alloy ring, the overall swell of the shape of interior memorial alloy circle, thus can be to wound packages outside thin-walled
Liquid in putting or gas medium realize sealing function.During cooling phase transformation, memorial alloy circle becomes low-temperature phase shape, wherein, outward
The overall swell of the shape of memorial alloy circle, the shape overall shrinkage of interior memorial alloy circle, thus freedom can be carried out to sealing device
Dismounting.
The memorial alloy ring seal device of the present invention utilizes the double-pass memory effect of marmem to realize thin-walled urceolus
Being tightly connected and freely dismantle of device.On the one hand, start to warm up from room temperature environment, when the high-temperature-phase height reaching memorial alloy
When, the shape overall shrinkage of External Memory alloy ring, the overall swell of the shape of interior memorial alloy circle, thus can be to cartridge outside thin-walled
Interior liquid or gas medium realize sealing function.On the other hand, cooling is started from room temperature environment, when reaching the low of memorial alloy
During temperature transformation temperature, the overall swell of the shape of External Memory alloy ring, the shape overall shrinkage of interior memorial alloy circle, thus can be to sealing
Device carries out free dismounting.Under sealing state, External Memory alloy ring and the interior memorial alloy circle of this device dock at thin-walled urceolus
The theoretical value zero with joint efforts that interface produces, the risk of leakage that the unilateral stress deformation of thin-walled urceolus can be avoided to bring, ensureing
Avoid the life-span problem of aging using elastic rubber ring to bring while sealing effectiveness, effectively extend the use of sealing device
Life-span.
The memorial alloy ring seal device of the present invention is a kind of memorial alloy ring seal device being applicable to thin-walled urceolus.This
The memorial alloy ring seal device of invention utilizes the liquid medium that the memorial alloy circle of alloy material realizes outside thin-walled in cartridge
Or the sealing of gas medium, in sealed states, External Memory alloy ring and interior memorial alloy circle are at thin-walled urceolus butt joint interface
The theoretical value zero of making a concerted effort producing, such that it is able to the risk of leakage avoiding the unilateral stress deformation of thin-walled urceolus to bring, also keeps away meanwhile
Exempted from the elastic rubber ring life-span aging after radially contact with power and reduce the leakage hidden danger brought.
Brief description
Fig. 1 is the sealing confined state sectional view of the memorial alloy ring seal device of the present invention；
Fig. 2 is the free confined state sectional view of the memorial alloy ring seal device of the present invention.
In figure, 1. urceolus 11. inner periphery I 12. outer cylinder surface I 13. butt joint interface I 2. External Memory closes
Memorial alloy circle 4. end cap 41. inner periphery II 42. outer cylinder surface II 43. butt joint interface in gold ring 3.
Ⅱ。
Detailed description of the invention
Describe the present invention below in conjunction with the accompanying drawings in detail.
As shown in Figure 1 and Figure 2, the memorial alloy ring seal device of the present invention, including urceolus the 1st, memorial alloy circle and end cap 4,
Described memorial alloy circle is divided into External Memory alloy ring 2 and interior memorial alloy circle 3, and urceolus 1 is cylindrical shape, one end end of cylinder
Lid 4 sealing, the other end is open, and memorial alloy circle 3 in the inner surface suit of urceolus 1, outer surface is set with External Memory alloy ring 2；
Described External Memory alloy ring 2 shape shrink after outer cylinder surface II with the outer cylinder surface I 12 of urceolus 1 and end cap 4
42 are in close contact, the outer cylinder surface II with the outer cylinder surface I 12 of urceolus 1 and end cap 4 after External Memory alloy ring 2 shape swell
42 completely disengage from, the inner periphery II with the inner periphery I 11 of urceolus 1 and end cap 4 after interior memorial alloy circle 3 shape swell
41 are in close contact, interior memorial alloy circle 3 shape shrink after inner periphery II with the inner periphery I 11 of urceolus 1 and end cap 4
41 completely disengage from；
Described External Memory alloy ring 2 and interior memorial alloy circle 3 material are the marmems with double-pass memory effect, tool
Body is NiTi base memorial alloy, and the typical composition of NiTi base memorial alloy is, the percentage by weight of titanium is 35% ~ 38%, the weight of nickel
Amount percentage is 47% ~ 52%, and the percentage by weight of niobium is 13% ~ 15%.This kind of NiTi base memorial alloy can carry out high-temperature phase-change
Shape is shunk and the shape memory of low temperature phase change shape swell is trained, it is also possible to carry out high-temperature phase-change shape swell and low temperature phase change
The shape memory training that shape is shunk.
Described External Memory alloy ring 2 is when room temperature environment carries out intensification phase transformation, and shape understands overall shrinkage, becomes high-temperature-phase
Shape；When room temperature environment carries out cooling phase transformation, the overall swell of shape meeting, become low-temperature phase shape.
Described interior memorial alloy circle 3 is when room temperature environment carries out intensification phase transformation, and shape understands overall swell, becomes high-temperature-phase
Shape；Interior memorial alloy circle 3 is when room temperature environment carries out cooling phase transformation, and shape is understood overall shrinkage, become low-temperature phase shape.
In Fig. 1, the temperature of room temperature environment is between 20 DEG C ~ 30 DEG C, and external memorial alloy circle 2 and interior memorial alloy circle 3 are carried out
Local heating, when the temperature of External Memory alloy ring 2 and interior memorial alloy circle 3 reaches a high temperature transformation temperature from room temperature, External Memory closes
The shape overall shrinkage of gold ring 2, the overall swell of the shape of interior memorial alloy circle 3, thus liquid that can be to thin-walled in outer cartridge
Or gas medium realizes sealing function.
In Fig. 2, the temperature of room temperature environment is between 20 DEG C ~ 30 DEG C, and external memorial alloy circle 2 and interior memorial alloy circle 3 are carried out
Local cooling, when the temperature of External Memory alloy ring 2 and interior memorial alloy circle 3 reaches low-temperature phase height from room temperature, External Memory closes
The overall swell of the shape of gold ring 2, the shape overall shrinkage of interior memorial alloy circle 3, depressurization state, thus can be to sealing device
Carry out free dismounting.
The memorial alloy ring seal device of the present invention utilizes the double-pass memory effect of marmem to achieve outside thin-walled
Being tightly connected and freely dismantle of cartridge, under sealing confined state, the External Memory alloy ring 2 of this device at urceolus 1 to border
Inside compression stress is produced at face I 13 and end cap 4 butt joint interface II 43F, interior memorial alloy circle 3 is at urceolus 1 butt joint interface I 13
The compression stress outside with generation at end cap 4 butt joint interface II 43F´, inside compression stressFWith outside compression stressF´Make a concerted effort
Can be zero in theory, it is thus possible to avoid the risk of leakage that the unilateral stress deformation of thin-walled urceolus brings.The memory of the present invention is closed
Gold ring sealing device avoids the life-span problem of aging using elastic rubber ring to bring while ensureing sealing effectiveness, effectively prolongs
Grow the service life of sealing device.
The present invention is not limited to above-mentioned detailed description of the invention, person of ordinary skill in the field from above-mentioned design,
Without performing creative labour, all conversion made, all fall within protection scope of the present invention.
Claims (4)
1. a memorial alloy ring seal device, including urceolus (1), memorial alloy circle and end cap (4), it is characterised in that: described
Memorial alloy circle be divided into External Memory alloy ring (2) and interior memorial alloy circle (3), urceolus (1) is cylindrical shape, and one end of cylinder is used
End cap (4) seals, and the other end is open, memorial alloy circle (3) in the inner surface suit of urceolus (1), and outer surface suit External Memory closes
Gold ring (2)；
Described External Memory alloy ring (2) shape shrink after cylindrical with the outer cylinder surface I (12) of urceolus (1) and end cap (4)
Post surface II (42) is in close contact, outer cylinder surface I (12) and the end with urceolus (1) after External Memory alloy ring (2) shape swell
The outer cylinder surface II (42) of lid (4) completely disengages from, the interior cylinder table with urceolus (1) after interior memorial alloy circle (3) shape swell
The inner periphery II (41) of face I (11) and end cap (4) is in close contact, with urceolus (1) after the contraction of interior memorial alloy circle (3) shape
Inner periphery I (11) and the inner periphery II (41) of end cap (4) completely disengage from；
The material of described External Memory alloy ring (2) and interior memorial alloy circle (3) is the shape memory with double-pass memory effect
Alloy.
2. memorial alloy ring seal device according to claim 1, it is characterised in that: described marmem is nickel
Titanium-based memorial alloy, in NiTi base memorial alloy, the percentage by weight of each component is:
Titanium 35% ~ 38%；
Nickel 47% ~ 52%；
Niobium 13% ~ 15%.
3. memorial alloy ring seal device according to claim 1, it is characterised in that: described External Memory alloy ring (2)
When room temperature environment carries out intensification phase transformation, shape meeting overall shrinkage, become high-temperature-phase shape；External Memory alloy ring (2) is from room temperature
When environment carries out cooling phase transformation, the overall swell of shape meeting, become low-temperature phase shape.
4. memorial alloy ring seal device according to claim 1, it is characterised in that: described interior memorial alloy circle (3)
When room temperature environment carries out intensification phase transformation, the overall swell of shape meeting, become high-temperature-phase shape；Interior memorial alloy circle (3) is from room temperature
When environment carries out cooling phase transformation, shape meeting overall shrinkage, become low-temperature phase shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610700955.7A CN106065948A (en) | 2016-08-23 | 2016-08-23 | A kind of memorial alloy ring seal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610700955.7A CN106065948A (en) | 2016-08-23 | 2016-08-23 | A kind of memorial alloy ring seal device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106065948A true CN106065948A (en) | 2016-11-02 |
Family
ID=57206815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610700955.7A Pending CN106065948A (en) | 2016-08-23 | 2016-08-23 | A kind of memorial alloy ring seal device |
Country Status (1)
| Country | Link |
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| CN (1) | CN106065948A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109345958A (en) * | 2018-09-25 | 2019-02-15 | 武汉华星光电半导体显示技术有限公司 | Cover board and flexible display screen for flexible display screen |
| CN111020338A (en) * | 2019-12-16 | 2020-04-17 | 四川大学 | Ultralow temperature service nickel-titanium-niobium shape memory alloy |
| CN112210831A (en) * | 2020-09-14 | 2021-01-12 | 阳忠海 | Diffusion furnace for manufacturing photovoltaic cell |
| CN113631844A (en) * | 2019-03-29 | 2021-11-09 | Abb瑞士股份有限公司 | Joint, motor, industrial robot and method for mounting sealing element |
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| CN206054733U (en) * | 2016-08-23 | 2017-03-29 | 中国工程物理研究院电子工程研究所 | A kind of memorial alloy ring seal device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109345958A (en) * | 2018-09-25 | 2019-02-15 | 武汉华星光电半导体显示技术有限公司 | Cover board and flexible display screen for flexible display screen |
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| CN113631844A (en) * | 2019-03-29 | 2021-11-09 | Abb瑞士股份有限公司 | Joint, motor, industrial robot and method for mounting sealing element |
| CN111020338A (en) * | 2019-12-16 | 2020-04-17 | 四川大学 | Ultralow temperature service nickel-titanium-niobium shape memory alloy |
| CN111020338B (en) * | 2019-12-16 | 2021-07-30 | 四川大学 | Ultralow temperature service nickel-titanium-niobium shape memory alloy |
| CN112210831A (en) * | 2020-09-14 | 2021-01-12 | 阳忠海 | Diffusion furnace for manufacturing photovoltaic cell |
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Application publication date: 20161102 |