CN201443656U - Cone-shaped connecting pipe joint structure - Google Patents
Cone-shaped connecting pipe joint structure Download PDFInfo
- Publication number
- CN201443656U CN201443656U CN2008201750630U CN200820175063U CN201443656U CN 201443656 U CN201443656 U CN 201443656U CN 2008201750630 U CN2008201750630 U CN 2008201750630U CN 200820175063 U CN200820175063 U CN 200820175063U CN 201443656 U CN201443656 U CN 201443656U
- Authority
- CN
- China
- Prior art keywords
- pipe
- diameter
- copper
- welding
- reducing
- 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
Links
- RYGMFSIKBFXOCR-UHFFFAOYSA-N copper Chemical compound 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[Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 32
- 229910052802 copper Inorganic materials 0.000 claims abstract description 32
- 239000010949 copper Substances 0.000 claims abstract description 32
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 19
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminum Chemical compound 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[Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 19
- 238000003466 welding Methods 0.000 claims abstract description 19
- -1 copper-aluminum Chemical compound 0.000 abstract description 7
- 239000000463 material Substances 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 6
- 238000010297 mechanical methods and process Methods 0.000 abstract 1
- 238000004021 metal welding Methods 0.000 abstract 1
- 239000004411 aluminium Substances 0.000 description 6
- 239000000203 mixture Substances 0.000 description 4
- 238000005057 refrigeration Methods 0.000 description 3
- 229910017767 Cu—Al Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910000906 Bronze Inorganic materials 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 229910001570 bauxite Inorganic materials 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000005496 eutectics Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
Abstract
The utility model relates to welding joint applied to metal welding, in particular the welding of dissimilar materials, such as the welding joint for copper-aluminum pipes. In technical scheme, the welding joint comprises a copper pipe and an aluminum pipe which are welded mutually, and the different connecting or fixing manners of a connecting pipe require the diameter of the connecting end thereof to be changed according to the connecting manners. According to actual requirement, the diameter of the non-weld end of the connecting pipe can be changed through a mechanical method, that is, a section of the connecting pipe which has the diameter similar to or same with that of the aluminum pipe is firstly machined and then head-reducing process is carried out for the part requiring diameter change; and then the diameter meeting the required criterion of connection can be realized through a cone-shaped diameter-change part or a step diameter-change straight-pipe section, thus meeting the actual requirement.
Description
Technical field
The utility model relates to a kind of welding of the welded joint that is used for metal, especially foreign material, as copper aluminum pipe welded joint.
Background technique
In recent years, because the copper valency is constantly raising up, promoted the market application area of aluminium for copper material technological progress and related industry.Its shortage of strategic resource copper-base of China and bauxite resource is abundant relatively, refrigeration industry uses copper pipe in a large number at present, and copper changes aluminium and reduces manufacture cost and become crucial problem.But the copper pipe wall thickness majority that refrigeration industry relates to is below 1.0 millimeters; Because it is alternative fully that the peculiar advantage of copper pipe at aspects such as refrigeration pipe production and processing, after-sales services is difficult to by aluminum pipe, all adopt aluminum pipe to replace copper pipe can bring problems.And the centre be the aluminium two ends is copper aluminum bronze structure pipelines of copper, then because switching performance is identical with copper pipe, can replace copper pipe fully.
The joint that copper pipe is inserted in the aluminum pipe is fit to the thin wall copper aluminum pipe welding, adopt highfrequency welding, method for welding welding, owing to have reactive pore, copper aluminium eutectic structure, potential unfavorable factors such as corrosion hidden danger, can not realize the metallic bond combination that copper aluminium is firm, it is also very big to realize producing difficulty in batches; Adopt the resistor pressure complex welding method, can overcome the problems referred to above, but characteristics such as the different thermal conductivity of copper aluminium material material, electric conductivity or need both diameter can not be identical the time, this has formed certain obstacle for use of this method, has hindered the application of aluminum pipe in some industry.
Summary of the invention
The purpose of this utility model is: design a kind of taper connection pipe joint structure, this copper-aluminium tube joint can be implemented under the diameter of the two kinds of materials situation inequality, can make the normal utilization of thin wall copper aluminum pipe welding technique.
The technical solution of the utility model comprises copper pipe and the aluminum pipe that is welded to each other, because the connection or the means of fixation difference of connecting tube require the diameter of its connecting end to want mode to change.We can with the fixed end of connecting tube, by taper reducing position or ladder reducing straight length position, be processed into the specification that diameter meets connection request according to the demand of reality, satisfy actual needs.
The utility model beneficial effect is: can adapt to various Connecting format by joint after the change of structural type, especially be fit to the welding of copper-aluminium thin-wall tube class.
Description of drawings
Fig. 1 is the sectional view of the real structure example of the utility model;
Among the figure: 1, copper pipe, 2, taper reducing position, 3, taper drop-head face of weld.
Fig. 2 is the sectional view of complete Cu-Al connecting pipe;
Among the figure: 1, copper pipe, 2, taper reducing position, 3, taper drop-head face of weld, 4, aluminum pipe.
Fig. 3 is that the accommodation of copper pipe becomes several sections echelon sectional views among Fig. 1;
Among the figure: 2, taper reducing position, 3, taper drop-head face of weld, 5, stepped reducing position.
Embodiment
Embodiment one:
Present embodiment is the Cu-Al connecting pipe joint that aluminum pipe 4 and copper pipe 1 are welded, and near the non-welding ends of copper pipe 1, the diameter of copper pipe is carried out deformation process, makes it form taper reducing position 2, and drop-head is handled and formed taper drop-head face of weld 3 then.This reducing position 2 can be formed on the copper pipe 1 before processing welding procedure of the present utility model is carried out, and also can be formed on the copper pipe 1 in welding.
In the present embodiment, the length at the reducing position 2 of copper pipe 1 can be to remove the remaining part of welding part, also can be certain part;
In the present embodiment, the form at the reducing position 2 of copper pipe 1 can be the segmentation straight tube, also can be taper pipeline section and its composition, or the composition of two kinds of forms.
In the present embodiment, the form at the reducing position 2 of copper pipe 1 can be a straight length, also can be at straight tube or taper pipeline section processing spiral or groove.
The quantity at the copper pipe 1 reducing position 2 of present embodiment can be one section, also can be that multistage is formed, for example: can be 1,2,3 ... several.
Described a kind of taper connection pipe joint structure, for obtaining better welding quality, copper pipe 1 can be selected copper tube for use, and aluminum pipe 4 can be selected pure aluminum tube or antirust aluminum pipe for use.
The structure of the utility model patent not only adapts to and the socket connection form, also is applicable to other combination of materials of other Placements simultaneously.
The present invention describes with reference to drawings and Examples, but protection domain is not limited thereto, and has those of ordinary skill and can pass through simple conversion in the technology of the present invention scope, and obtain the same technique effect of the present invention, equally in protection scope of the present invention.
Claims (5)
1. a taper connection pipe joint structure comprises the copper pipe (1) and the aluminum pipe (4) that are welded to each other, and it is characterized in that: copper pipe (1) is provided with reducing position (2) at non-welding ends.
2. taper connection pipe joint structure according to claim 1 is characterized in that: the length at described reducing position (2) is for removing the remaining part of welding part.
3. taper connection pipe joint structure according to claim 1 and 2 is characterized in that: described reducing position is taper pipeline section and/or straight length.
4. taper connection pipe joint structure according to claim 3 is characterized in that: described reducing position (2) is at least one section.
5. taper connection pipe joint structure according to claim 1 and 2 is characterized in that: described taper pipeline section and/or straight length are provided with spiral or groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008201750630U CN201443656U (en) | 2008-11-09 | 2008-11-09 | Cone-shaped connecting pipe joint structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008201750630U CN201443656U (en) | 2008-11-09 | 2008-11-09 | Cone-shaped connecting pipe joint structure |
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| Publication Number | Publication Date |
|---|---|
| CN201443656U true CN201443656U (en) | 2010-04-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008201750630U Expired - Fee Related CN201443656U (en) | 2008-11-09 | 2008-11-09 | Cone-shaped connecting pipe joint structure |
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| Country | Link |
|---|---|
| CN (1) | CN201443656U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103486342A (en) * | 2013-10-09 | 2014-01-01 | 苏州市吴中区曙光铜管厂 | Copper pipe |
-
2008
- 2008-11-09 CN CN2008201750630U patent/CN201443656U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103486342A (en) * | 2013-10-09 | 2014-01-01 | 苏州市吴中区曙光铜管厂 | Copper pipe |
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| 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: 20100428 Termination date: 20171109 |