CN202149300U - Diameter-changing copper aluminum connection pipe joint structure of copper pipe - Google Patents
Diameter-changing copper aluminum connection pipe joint structure of copper pipe Download PDFInfo
- Publication number
- CN202149300U CN202149300U CN201020272427U CN201020272427U CN202149300U CN 202149300 U CN202149300 U CN 202149300U CN 201020272427 U CN201020272427 U CN 201020272427U CN 201020272427 U CN201020272427 U CN 201020272427U CN 202149300 U CN202149300 U CN 202149300U
- Authority
- CN
- China
- Prior art keywords
- copper
- pipe
- diameter
- copper pipe
- changing
- 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
- 239000010949 copper Substances 0.000 title claims abstract description 50
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 50
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 49
- JRBRVDCKNXZZGH-UHFFFAOYSA-N alumane;copper Chemical compound [AlH3].[Cu] JRBRVDCKNXZZGH-UHFFFAOYSA-N 0.000 title abstract description 7
- 238000003466 welding Methods 0.000 claims abstract description 22
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 20
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 20
- 229910017767 Cu—Al Inorganic materials 0.000 claims description 8
- 150000001879 copper Chemical class 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 7
- 238000000034 method Methods 0.000 description 12
- 239000004411 aluminium Substances 0.000 description 7
- 238000005057 refrigeration Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 229910001570 bauxite Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005496 eutectics Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
Landscapes
- Butt Welding And Welding Of Specific Article (AREA)
- Non-Disconnectible Joints And Screw-Threaded Joints (AREA)
Abstract
The utility model relates to a diameter-changing copper aluminum connection pipe joint structure of copper pipe, comprising a copper pipe (1) and an aluminum pipe (5) with a different diameter from the copper pipe, wherein the copper pipe and the aluminum pipe are welded together, characterized in that: a diameter-changing component (2), different diameter segment (3) after changing the diameter and a cone head-shrinking welding surface (4) are processed on the welding end of the copper pipe (1). The workpiece preparatory work before welding copper aluminum pipe type materials of different diameter is conveniently smoothly accomplished by using the diameter-changing copper aluminum connection pipe joint structure.
Description
[technical field]
The utility model relates to the welded structure of foreign material, especially a kind of Cu-Al connecting pipe joint structure of copper pipe reducing.
[background technique]
In recent years, because the copper valency is constantly raising up, promoted the application market scope of aluminium for copper material technological progress and related industry.China is the extremely shortage of copper resource, the country that bauxite resource is abundant relatively, and refrigeration industry uses copper pipe in a large number at present, and copper changes aluminium reduction manufacture cost and has become crucial problem.But the copper pipe wall thickness majority that refrigeration industry relates to is below 1.0 millimeters; Because the performance characteristics of copper pipe, in the refrigeration pipe production and processing, the peculiar advantage of aspect such as installation and maintenance is difficult to by aluminum pipe alternatively fully after sale, all adopts aluminum pipe to replace copper pipe also 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 that the firm metallic bond of copper aluminium combines, 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 at some refrigeration industry.
[summary of the invention]
The purpose of the utility model is: design a kind of Cu-Al connecting pipe joint structure of copper pipe reducing, this copper-aluminium tube joint can be implemented under two kinds of material diameter situation inequality, still guarantees the normal utilization of thin wall copper aluminum pipe welding technique.
The technological scheme of the utility model: a kind of Cu-Al connecting pipe joint structure of copper pipe reducing; The copper pipe 1 and aluminum pipe 5 that comprise the different-diameter that welds together; It is characterized in that: copper pipe 1 welding latter end is processed with reducing position 2, the different-diameter section 3 behind the reducing, and taper drop-head face of weld 4.Near the welding part of copper pipe, its diameter is changed through the mechanical technology method; Carry out the reducing position that drop-head is handled again after promptly processing one section diameter diameter close or identical, make copper pipe successfully to be inserted into and accomplish welding preparatory work in the aluminum pipe with aluminum pipe.The diameter that this structural type can make copper pipe with the aluminum pipe diameter not simultaneously, can guarantee that also the quality of welding meets technology and uses standard.Above-mentioned copper pipe reducing form can be processed before welding, also can when welding, process.The structure of the utility model can also be flexible for the structural type of several sections ladder straight lengths is arranged, and also can substitute straight length by the Taper Pipe section.
The utility model beneficial effect is: through near the welding part of copper pipe, through the mechanical technology method its diameter being changed; Can make the copper Al pipe butt welding of different size form the joint that meets usage requirement effectively together, make the welding method between the thin-walled copper aluminium that purposes prospect more widely arranged.
[description of drawings]
Fig. 1 is the diameter of the utility model embodiment copper pipe sectional view that changes;
Fig. 2 is the sectional view of Cu-Al connecting pipe after the copper pipe insertion Al pipe butt welding;
Fig. 3 is that copper pipe is divided into several sections step diameter variation sectional views;
Fig. 4 is the sectional view that forms tapering transition section and taper drop-head face of weld behind the copper pipe reducing;
Fig. 5 is the sectional view that the copper pipe diameter diminishes;
Among the figure: 1, copper pipe, 2, the reducing position, 3, the different-diameter section behind the reducing, 4, taper drop-head face of weld, 5, aluminum pipe.
[embodiment]
Present embodiment: a kind of Cu-Al connecting pipe joint structure technological scheme of copper pipe reducing does; The aluminum pipe 5 and the copper pipe 1 of different-diameter; Copper pipe 1 is through method that changes diameter and the Cu-Al connecting pipe joint that Al pipe butt welding forms; Like Fig. 2, near the diameter copper pipe 1 welding latter end is handled the different-diameter section 3 after forming reducing position 2, reducing and is processed to form taper drop-head face of weld 4 through reducing, like Fig. 1.In the present embodiment, the form at the reducing position 2 of copper pipe 1 can be straight length, taper pipeline section and its combination.
In the present embodiment; The structural type of the different-diameter section 3 behind the reducing that former specification copper pipe 1 forms later on through reducing can be the combination of straight length, conical pipe or straight length and two kinds of structural types of taper, also can process spiral or groove in different-diameter section 3 places behind reducing.
The reducing position 2 of the copper pipe 1 of present embodiment and the group number of the different-diameter section 3 behind the reducing can be one group, also can be 2 groups or 3 groups.
The present invention describes with reference to accompanying drawing and embodiment; But protection domain is not limited thereto; In technical scope of the present invention, have those of ordinary skill and can pass through simple conversion, and obtain the same technique effect of the present invention or change the mode of different materials, equally in protection scope of the present invention.
Claims (1)
1. the Cu-Al connecting pipe joint structure of a copper pipe reducing; The copper pipe (1) and the aluminum pipe (5) that comprise the different-diameter that welds together; It is characterized in that: copper pipe (1) welding latter end is processed with reducing position (2), the different-diameter section (3) behind the reducing, and taper drop-head face of weld (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020272427U CN202149300U (en) | 2010-07-24 | 2010-07-24 | Diameter-changing copper aluminum connection pipe joint structure of copper pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020272427U CN202149300U (en) | 2010-07-24 | 2010-07-24 | Diameter-changing copper aluminum connection pipe joint structure of copper pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202149300U true CN202149300U (en) | 2012-02-22 |
Family
ID=45590359
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020272427U Expired - Lifetime CN202149300U (en) | 2010-07-24 | 2010-07-24 | Diameter-changing copper aluminum connection pipe joint structure of copper pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202149300U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106322560A (en) * | 2016-08-31 | 2017-01-11 | 新昌县开铭制冷配件有限公司 | Connecting pipe used for air conditioner refrigerating pipes |
-
2010
- 2010-07-24 CN CN201020272427U patent/CN202149300U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106322560A (en) * | 2016-08-31 | 2017-01-11 | 新昌县开铭制冷配件有限公司 | Connecting pipe used for air conditioner refrigerating pipes |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120222 |