CN2625071Y - Floating supporting device - Google Patents
Floating supporting device Download PDFInfo
- Publication number
- CN2625071Y CN2625071Y CN 03213957 CN03213957U CN2625071Y CN 2625071 Y CN2625071 Y CN 2625071Y CN 03213957 CN03213957 CN 03213957 CN 03213957 U CN03213957 U CN 03213957U CN 2625071 Y CN2625071 Y CN 2625071Y
- Authority
- CN
- China
- Prior art keywords
- pipe joint
- packing ring
- base
- limit element
- support device
- 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.)
- Expired - Lifetime
Links
- 238000007667 floating Methods 0.000 title claims abstract description 18
- 238000012856 packing Methods 0.000 claims description 25
- 238000000926 separation method Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 9
- 230000008569 process Effects 0.000 abstract description 8
- 238000005516 engineering process Methods 0.000 abstract description 5
- 229910001285 shape-memory alloy Inorganic materials 0.000 abstract 6
- 229910045601 alloy Inorganic materials 0.000 description 28
- 239000000956 alloy Substances 0.000 description 28
- 229910000734 martensite Inorganic materials 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 239000010439 graphite Substances 0.000 description 3
- 229910002804 graphite Inorganic materials 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000013013 elastic material Substances 0.000 description 2
- 239000010440 gypsum Substances 0.000 description 2
- 229910052602 gypsum Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 229910001566 austenite Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000006386 memory function Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
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Abstract
The utility model relates to a floating support device for the expanded diameter of the large deformation amount (greater than or equal to 10 percent) of a memory alloy pipe joint or a memory alloy ring, belonging to the expanded diameter technology of the large deformation amount, which comprises a base (7) with a hole, a floating gasket (8), a limit element (9); wherein the base (7) is opened with an inner groove, the groove is provided with the floating gasket (8), the limit element (9) is arranged between the floating gasket (8) and the groove, the base (7), the floating gasket (8) and the limit element (9) are in the same axial line. The utility model realizes the expanded diameter of the large deformation amount for the memory alloy pipe joint or the memory alloy ring wall, and floats outwards with the increase of the diameter of the memory alloy ring or the memory alloy pipe joint in the expanded diameter process; the floating support device realizes the smooth support in the expanded diameter process, and simultaneously the punch can smoothly pass through the floating support device.
Description
Technical field
The utility model relates to aximal deformation value hole enlargement technology, is specially a kind of floating support device that is used for memorial alloy pipe joint or memorial alloy ring aximal deformation value (〉=10%) hole enlargement.
Background technology
Memorial alloy pipe joint or memorial alloy ring aximal deformation value expander and hole enlargement technology are the key technologies of the hot mechanical treatment of memorial alloy shape memory function.The NiTiFe marmem pipe joint is that a kind of novel pipeline that the seventies grows up connects material and interconnection technique, principle is to make a bit of pipe box with memorial alloy, it is pipe joint, its original internal diameter is less than the external diameter of being taken over, and hole enlargement is out of shape at low temperatures, and the internal diameter of pipe joint after the hole enlargement is slightly larger than the external diameter of being taken over, thereby can carry out pipeline is linked and packed, heating tube joint then, along with martensite to austenite phase transformation, the shape before the hole enlargement is recovered.Because the original internal diameter of pipe joint less than the external diameter of being taken over, produces interference fit, embraced joining two pipes together firmly, realize that easily pipeline connects.
Expander in the past as shown in Figure 1.Expander is made of push rod 1, stamping 2, support ring 4, lower platform 5 and principal post 6.Pipe joint 3 vertically is sitting on the support ring 4, after pipe joint 3 and stamping assembled, be placed on the support ring 4 of lower platform 5, and fix, place environmental chamber with locating ring, the radial load that produces of hydraulic press (not marking) makes conical die dash 2 by push rod 1 slowly to move down like this, along with conical die is dashed 2 move down, the pipe joint diameter enlarges gradually, when stamping 2 passes through pipe joint fully, fall in the low temperature bucket, promptly finish the low temperature hole enlargement of pipe joint.
Ti
44Ni
47Nb
9Alloy is a kind of novel wide heat stagnation marmem, the Ms point of this alloy is about-90 ℃, alloy is after low temperature is crossed distortion, β-Nb produces the martensitic elastic strain energy of inducting in the plastic deformation absorption deformation process mutually in the dependence alloy, make martensite reverse change beginning temperature be elevated to A ' s point from the As point of no deformation state, deformation quantity is big more, A ' s point is high more.When deflection greater than 14%, A ' s point is higher than room temperature, pipe joint can at room temperature store, transports and assemble after this just illustrated the large deformation hole enlargement.
NiTiFe alloy pipe joint hole enlargement deflection is about 8%.Here the hole enlargement deflection is (hole enlargement mould diameter-internal diameter of pipe joint)/internal diameter of pipe joint.For the TiNiNb alloy pipe joint, for realizing pipe joint storage, transportation and assembling at room temperature, the hole enlargement deflection must be greater than 14%.Expander will have the support of balance in the hole enlargement process to pipe joint, expander die dashes and passes through pipe joint again simultaneously, for light-wall pipe joint large deformation hole enlargement, often greater than the external diameter of pipe joint, pipe joint hole enlargement bracing or strutting arrangement shown in Figure 1 can't be realized hole enlargement to expander die towards diameter.
The utility model content
The purpose of this utility model is to provide a kind of floating support device that goes for thin-walled memorial alloy pipe joint or memorial alloy ring large deformation hole enlargement.
The technical solution of the utility model is:
A kind of floating support device, comprise base with holes, unsteady packing ring, limit element, base has inner groovy, unsteady packing ring is housed in the groove, float and between packing ring and the groove limit element is housed, base, unsteady packing ring, limit element three are on same axis, and the internal diameter of the packing ring that floats can radially be expanded.
Described unsteady packing ring is made of radially equally distributed separation cushion block, or cushion block is hinged together by flexible member and constitutes, and cushion block quantity is at least two.
The groove medial surface of described base is an inverted cone surface, and the internal diameter of limit element is identical with the external diameter of unsteady packing ring, matches with the inner conical surface of base groove in its outer.
Described limit element is elasticity or brittle component.Wherein elastic material is spring leaf, rubber, macromolecular material etc., and brittle substance is graphite, gypsum etc.
Advantage of the present utility model and beneficial effect are:
1, the utility model can replace the support ring of expander in the prior art, realized the hole enlargement of memorial alloy pipe joint or memorial alloy ring thin-walled, aximal deformation value, in the hole enlargement process, along with the increase of memorial alloy ring or pipe joint diameter is outwards floated, by adopting floating support device to realize steady support in the hole enlargement process, stamping can pass through smoothly simultaneously.
2, the memorial alloy pipe joint or the memorial alloy ring of the utility model employing can be light pipes, also can be interior ridges; The hole enlargement temperature can be from the liquid nitrogen temperature to the room temperature; The hole enlargement deflection is 14%～40%; By the wall thickness 0.5mm～10mm of the memorial alloy pipe joint of hole enlargement.
Description of drawings
Fig. 1 is an expander schematic diagram in the prior art.
Fig. 2 is the utility model structural representation.
Fig. 3 is the vertical view of Fig. 2.
The specific embodiment
Embodiment 1
Shown in Fig. 2～3, the utility model floating support device is made up of base with holes 7, the packing ring 8 that floats, limit element 9, base 7 has inner groovy, the packing ring 8 that floats is housed in the groove, float and between packing ring 8 and the groove limit element 9 is housed, base 7, unsteady packing ring 8, limit element 9 threes are on same axis, and the internal diameter of the packing ring that floats can radially be expanded.The packing ring 8 that wherein floats is by separation cushion block equally distributed separation radially or that be hinged together by flexible member, 3 of memorial alloy pipe joints are on unsteady packing ring 8, and it is coaxial with its maintenance, the unsteady packing ring 8 of present embodiment adopts four radially equally distributed separation cushion blocks 10 to constitute, limit element 9 is elasticity or brittle component, be used for fixing or limit the packing ring 8 that floats, it can be elastic material such as spring leaf, rubber, macromolecular material, also can be brittle substance such as graphite, gypsum etc., present embodiment adopts graphite cannula, the internal diameter of limit element 9 is identical with the external diameter of unsteady packing ring 8, and its outer is the conical surface and matches with the inner conical surface of base, thereby play position-limiting action, guarantee to be punched on the same axis by the memorial alloy pipe joint of hole enlargement and expander die.In the hole enlargement process, float packing ring 8 under the acting in conjunction of pipe joint of constantly expanding 3 and outer ring limit element 9, when supporting the pipe joint 3 of constantly expansion, on base 7, outwards slide, along with moving down of stamping, the pipe joint diameter enlarges gradually, the internal diameter of unsteady packing ring constantly enlarges, pass through pipe joint fully up to stamping, has promptly realized the hole enlargement of aximal deformation value memorial alloy pipe joint.Its martensite reverse change beginning temperature of pipe joint process hole enlargement is elevated to A ' s point from the As point of no deformation state, deformation quantity is big more, A ' s point is high more, realized the hole enlargement of aximal deformation value and thin-walled memorial alloy pipe joint, storage, transportation and assembling that can be at room temperature after the hole enlargement.
It is 14.1mm that present embodiment adopts internal diameter, and wall thickness is the Ti of 1.6mm
44Ni
47Nb
9The memorial alloy pipe joint, the stamping that with diameter is 16.5mm is-65 ℃ of hole enlargements, and the hole enlargement deflection is 17.0%, and the recovery temperature of pipe joint is 37 ℃ after the hole enlargement, and the pipe joint after the hole enlargement is at room temperature preserved.
Embodiment 2
Difference from Example 1 is:
The employing internal diameter is 36.2mm, and wall thickness is the Ti of 3mm
44Ni
47Nb
9The memorial alloy pipe joint, the stamping that with diameter is 43.4mm is-65 ℃ of hole enlargements, and the hole enlargement deflection is 19.9%, and the recovery temperature of pipe joint is 43 ℃ after the hole enlargement, and the pipe joint after the hole enlargement is at room temperature preserved.
Difference from Example 1 is:
The employing internal diameter is 7.0mm, and wall thickness is the Ti of 1.0mm
44Ni
47Nb
9The memorial alloy pipe joint, the stamping that with diameter is 8.4mm is-65 ℃ of hole enlargements, the hole enlargement deflection is 20%, the recovery temperature of pipe joint is 39 ℃ after the hole enlargement, pipe joint after the hole enlargement is at room temperature preserved, be warmed to 200 ℃ after the stainless steel tube connection that external diameter is 8mm is inserted at two ends respectively, the memorial alloy pipe joint recovers to shrink, and has realized the tight connection of two sections stainless steel tubes.
Claims (4)
1, a kind of floating support device, it is characterized in that: comprise base with holes (7), unsteady packing ring (8), limit element (9), base (7) has inner groovy, unsteady packing ring (8) is housed in the groove, float and between packing ring (8) and the groove limit element (9) is housed, base (7), unsteady packing ring (8), limit element (9) three are on same axis.
2, according to the described floating support device of claim 1, it is characterized in that: described unsteady packing ring (8) is made of radially equally distributed separation cushion block (10), or cushion block (10) is hinged together by flexible member and constitutes, and cushion block (10) quantity is at least two.
3, according to the described floating support device of claim 1, it is characterized in that: the groove medial surface of described base (7) is an inverted cone surface, and the internal diameter of limit element (9) is identical with the external diameter of unsteady packing ring (8), matches with the inner conical surface of base (7) groove in its outer.
4, according to the described floating support device of claim 1, it is characterized in that: described limit element (9) is elasticity or brittle component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03213957 CN2625071Y (en) | 2003-07-07 | 2003-07-07 | Floating supporting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03213957 CN2625071Y (en) | 2003-07-07 | 2003-07-07 | Floating supporting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2625071Y true CN2625071Y (en) | 2004-07-14 |
Family
ID=34242569
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03213957 Expired - Lifetime CN2625071Y (en) | 2003-07-07 | 2003-07-07 | Floating supporting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2625071Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102825084A (en) * | 2011-12-09 | 2012-12-19 | 洛阳轴研科技股份有限公司 | Cold extrusion device, and female die and male die thereof |
| CN103433395A (en) * | 2013-09-03 | 2013-12-11 | 西安胜智航空科技有限公司 | Expanding device for shape memory alloy pipe joint |
| CN106270142A (en) * | 2016-08-31 | 2017-01-04 | 无锡派克新材料科技股份有限公司 | A kind of aluminium alloy punching cold bulging method |
| CN113020460A (en) * | 2021-03-02 | 2021-06-25 | 有研工程技术研究院有限公司 | Expanding method of shape memory alloy pipe joint |
-
2003
- 2003-07-07 CN CN 03213957 patent/CN2625071Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102825084A (en) * | 2011-12-09 | 2012-12-19 | 洛阳轴研科技股份有限公司 | Cold extrusion device, and female die and male die thereof |
| CN103433395A (en) * | 2013-09-03 | 2013-12-11 | 西安胜智航空科技有限公司 | Expanding device for shape memory alloy pipe joint |
| CN106270142A (en) * | 2016-08-31 | 2017-01-04 | 无锡派克新材料科技股份有限公司 | A kind of aluminium alloy punching cold bulging method |
| CN113020460A (en) * | 2021-03-02 | 2021-06-25 | 有研工程技术研究院有限公司 | Expanding method of shape memory alloy pipe joint |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20130707 Granted publication date: 20040714 |