CN205478633U - Stirling refrigerator expansion cylinder - Google Patents
Stirling refrigerator expansion cylinder Download PDFInfo
- Publication number
- CN205478633U CN205478633U CN201620220336.3U CN201620220336U CN205478633U CN 205478633 U CN205478633 U CN 205478633U CN 201620220336 U CN201620220336 U CN 201620220336U CN 205478633 U CN205478633 U CN 205478633U
- Authority
- CN
- China
- Prior art keywords
- wall pipe
- light
- expansion cylinder
- connecting hole
- plug
- 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 - Fee Related
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- Laser Beam Processing (AREA)
Abstract
The utility model relates to a stirling refrigerator expansion cylinder, including flange, light -wall pipe and end cap, the connecting hole has been seted up in the middle of the flange, the one end embedding of light -wall pipe is installed in the connecting hole and with the connecting hole welding links to each other, the end cap embedding is installed the other end of light -wall pipe and with the light -wall pipe welding links to each other. According to the technical solution provided by the utility model, the stirling expansion cylinder can solve exist among the prior art not enough, in the course of working, need not to carry out the destressing to the part repeatedly and handle for manufacturing procedure significantly reduces, makes processing cycle effectively shorten to 10~15 days.
Description
Technical field
This utility model relates to sterlin refrigerator technical field, is specifically related to a kind of sterlin refrigerator expansion cylinder.
Background technology
Expansion cylinder is the strength member of sterlin refrigerator, and it is the inner bag of the Dewar in integrated form Dewar, and its cold end provides low-temperature receiver for infrared device.In order to reduce cold damage, the wall thickness of expansion cylinder gets over Bao Yuehao.
At present, existing sterlin refrigerator expansion cylinder is by using the flange of integrated design, light-wall pipe and plug to form, and wherein, the wall thickness range of light-wall pipe is 0.1 ~ 0.25mm, and the hole size precision of light-wall pipe, the accuracy of form and position require all at micron order.The expansion cylinder of this kind of design need to use round bar directly to process adding man-hour.For ensureing size and the accuracy of form and position requirement of this expansion cylinder thin-walled portion, need repeatedly workpiece to be carried out destressing process in the course of processing, cause that manufacturing procedure is more, the process-cycle is longer (typically at 30 ~ 60 days).
Utility model content
The purpose of this utility model is to provide a kind of sterlin refrigerator expansion cylinder, this expansion cylinder can solve the problem that the deficiencies in the prior art, in the course of processing, it is not necessary to repeatedly part is carried out destressing process, manufacturing procedure is greatly reduced, is effectively shortened the process-cycle.
For achieving the above object, this utility model have employed techniques below scheme:
A kind of sterlin refrigerator expansion cylinder, including flange, light-wall pipe and plug；Connecting hole is offered in the middle of described flange；One end of described light-wall pipe embeds and is arranged in described connecting hole and is weldingly connected with described connecting hole；Described plug embeds and is arranged on the other end of described light-wall pipe and is connected with described thin-wall pipe welding.
Further, one end of described light-wall pipe and described connecting hole matched in clearance and the gap between light-wall pipe and connecting hole are filled with solder；The other end of light-wall pipe and described plug matched in clearance.
Further, described light-wall pipe uses vacuum brazing to be connected with described connecting hole.
Further, described plug uses laser welding to be connected with described light-wall pipe.
Further, described flange 1 inwall and described light-wall pipe 3 periphery are all covered with nickel dam.
Further, the wall thickness of described light-wall pipe is 0.4 ~ 0.6mm.
Further, the gap between described light-wall pipe and connecting hole is 0.04 ~ 0.06mm.
Further, the gap between described light-wall pipe and plug is 0.01 ~ 0.03mm.
Further, the solder filled in the gap between described light-wall pipe and connecting hole uses money base solder.
Further, described flange, light-wall pipe and plug are stainless steel.
From above technical scheme, Stirling expansion cylinder described in the utility model can solve the problem that the deficiencies in the prior art, in the course of processing, it is not necessary to repeatedly part is carried out destressing process, manufacturing procedure is greatly reduced, makes the process-cycle effectively foreshorten to 10 ~ 15 days.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the enlarged diagram in A portion in Fig. 1.
Wherein:
1, flange, 2, money base solder, 3, light-wall pipe, 4, plug.
Detailed description of the invention
Below in conjunction with the accompanying drawings this utility model is described further:
A kind of sterlin refrigerator expansion cylinder as Figure 1-Figure 2, including flange 1, light-wall pipe 3 and plug 4.Connecting hole is offered in the middle of described flange 1.The equal opening in two ends of described light-wall pipe 3.One end of described light-wall pipe 3 embeds and is arranged in described connecting hole and is weldingly connected with described connecting hole.Described plug 4 embeds and is arranged on the other end of described light-wall pipe 3 and is weldingly connected with described light-wall pipe 3.
Further, one end of described light-wall pipe 3 and described connecting hole matched in clearance and the gap between light-wall pipe 3 and connecting hole are filled with solder.The other end of light-wall pipe 3 and described plug 4 matched in clearance, when using laser welding connecting thin walled pipe and plug, can produce high temperature, and the material at the two ends, gap between light-wall pipe and plug can melt this gap of filling, thus is linked together with plug by light-wall pipe.Further, described light-wall pipe 3 uses vacuum brazing to be connected with described connecting hole.The solder filled in gap between described light-wall pipe 3 and connecting hole uses money base solder 2.The trade mark of described money base solder is Bag72Cu.Vacuum brazing is used to be connected on the inwall of connecting hole the lateral wall, end of light-wall pipe, the impact on light-wall pipe performance can be prevented effectively from, and use money base solder, in welding process, money base solder can be uniformly filled in the gap between connecting hole and light-wall pipe, is conducive to improving the sealing of expansion cylinder.
Further, described plug 4 uses laser welding to be connected with described light-wall pipe 3.Use laser welding to connect to be connected on the inwall of light-wall pipe 3 by plug 4, it is possible to be prevented effectively from the impact on light-wall pipe performance.
Further, described flange 1 inwall and described light-wall pipe 3 periphery are all covered with nickel dam.Process by carrying out plating dark nickel in the periphery of the inwall of flange 1 and light-wall pipe, one layer of nickel dam is all covered in the periphery of flange 1 inwall and thin-walled 3 pipe, can preferably penetrate in the gap between connecting hole and light-wall pipe by solder, it is simple to flange is weldingly connected with light-wall pipe.
Further, the wall thickness of described light-wall pipe is 0.4 ~ 0.6mm, final thickness at the thickness of this light-wall pipe not expansion cylinder thin-walled, then by after light-wall pipe and flange welding, also needs reprocessing to final thickness.The thickness of light-wall pipe is the thinnest, and the surplus of following process will be the fewest, and the deformation that subsequent workpiece produces after machining will be the least, and dimensional accuracy and the accuracy of form and position easily ensure that.The light-wall pipe dimensional accuracy done in the market and the accuracy of form and position are the most poor.
Further, the gap between described light-wall pipe and connecting hole is 0.04 ~ 0.06mm, and this gap scope is vacuum brazing best clearance.
Further, the gap between described light-wall pipe and plug is 0.01 ~ 0.03mm, and this gap scope is laser welding best clearance.
Further, described flange 1, light-wall pipe 3 and plug 4 are stainless steel.This utility model is for the expansion cylinder of stainless steel.At present, sterlin refrigerator expansion cylinder typically has three kinds of materials: titanium alloy, high temperature alloy, rustless steel.The only expansion cylinder thin-walled portion of stainless steel can make tubulose.
Sterlin refrigerator expansion cylinder described in the utility model, carries out individually designed by flange, light-wall pipe and plug.Described flange uses round bar to process, and described light-wall pipe uses precise thin-wall steel pipe to make.First, the connecting hole of flange and the outer wall matched in clearance of light-wall pipe one end, and use vacuum brazing the two to be weldingly connected.Then, use the method for machining that light-wall pipe is processed so that it is size and the accuracy of form and position meet the requirements.Finally, then plug is embedded the opening part being arranged on the light-wall pipe other end, and use Laser Welding the two to be weldingly connected.In the sterlin refrigerator expansion cylinder course of processing described in the utility model, it is not necessary to all parts is carried out destressing process so that manufacturing procedure greatly reduces, and be effectively shortened the process-cycle.
Embodiment described above is only to be described preferred implementation of the present utility model; not scope of the present utility model is defined; on the premise of without departing from this utility model design spirit; various deformation that the technical solution of the utility model is made by those of ordinary skill in the art and improvement, all should fall in the protection domain that this utility model claims determine.
Claims (10)
1. a sterlin refrigerator expansion cylinder, it is characterised in that: include flange, light-wall pipe and plug；Connecting hole is offered in the middle of described flange；One end of described light-wall pipe embeds and is arranged in described connecting hole and is weldingly connected with described connecting hole；Described plug embeds and is arranged on the other end of described light-wall pipe and is connected with described thin-wall pipe welding.
A kind of sterlin refrigerator expansion cylinder the most according to claim 1, it is characterised in that: one end of described light-wall pipe and described connecting hole matched in clearance and the gap between light-wall pipe and connecting hole are filled with solder；The other end of light-wall pipe and described plug matched in clearance.
A kind of sterlin refrigerator expansion cylinder the most according to claim 1, it is characterised in that: described light-wall pipe uses vacuum brazing to be connected with described connecting hole.
A kind of sterlin refrigerator expansion cylinder the most according to claim 1, it is characterised in that: described plug uses laser welding to be connected with described light-wall pipe.
A kind of sterlin refrigerator expansion cylinder the most according to claim 1, it is characterised in that: described flange inner wall and described light-wall pipe periphery are all covered with nickel dam.
A kind of sterlin refrigerator expansion cylinder the most according to claim 1, it is characterised in that: the wall thickness of described light-wall pipe is 0.4 ~ 0.6mm.
A kind of sterlin refrigerator expansion cylinder the most according to claim 2, it is characterised in that: the gap between described light-wall pipe and connecting hole is 0.04 ~ 0.06mm.
A kind of sterlin refrigerator expansion cylinder the most according to claim 2, it is characterised in that: the gap between described light-wall pipe and plug is 0.01 ~ 0.03mm.
A kind of sterlin refrigerator expansion cylinder the most according to claim 2, it is characterised in that: the solder filled in the gap between described light-wall pipe and connecting hole uses money base solder.
A kind of sterlin refrigerator expansion cylinder the most according to claim 1, it is characterised in that: described flange, light-wall pipe and plug are stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620220336.3U CN205478633U (en) | 2016-03-19 | 2016-03-19 | Stirling refrigerator expansion cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620220336.3U CN205478633U (en) | 2016-03-19 | 2016-03-19 | Stirling refrigerator expansion cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205478633U true CN205478633U (en) | 2016-08-17 |
Family
ID=56654635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620220336.3U Expired - Fee Related CN205478633U (en) | 2016-03-19 | 2016-03-19 | Stirling refrigerator expansion cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205478633U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107421153A (en) * | 2017-08-22 | 2017-12-01 | 中国电子科技集团公司第十六研究所 | A kind of Stirling vascular mixing cold finger using post spring phase modulation |
-
2016
- 2016-03-19 CN CN201620220336.3U patent/CN205478633U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107421153A (en) * | 2017-08-22 | 2017-12-01 | 中国电子科技集团公司第十六研究所 | A kind of Stirling vascular mixing cold finger using post spring phase modulation |
| CN107421153B (en) * | 2017-08-22 | 2022-07-12 | 中国电子科技集团公司第十六研究所 | Stirling-pulse tube mixed cold finger adopting column spring phase modulation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160817 Termination date: 20210319 |