CN201443656U - Cone-shaped connecting pipe joint structure - Google Patents

Cone-shaped connecting pipe joint structure Download PDF

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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
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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
Application number
CN2008201750630U
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Chinese (zh)
Inventor
王岩
杨训
王昕�
赵超
尹衍升
赵越
左铁军
孙德兴
Original Assignee
左铁军
赵越
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 左铁军, 赵越 filed Critical 左铁军
Priority to CN2008201750630U priority Critical patent/CN201443656U/en
Application granted granted Critical
Publication of CN201443656U publication Critical patent/CN201443656U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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

A kind of taper connection pipe joint structure
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.
CN2008201750630U 2008-11-09 2008-11-09 Cone-shaped connecting pipe joint structure Expired - Fee Related CN201443656U (en)

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

Publications (1)

Publication Number Publication Date
CN201443656U true CN201443656U (en) 2010-04-28

Family

ID=42548336

Family Applications (1)

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

Country Status (1)

Country Link
CN (1) CN201443656U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
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

Cited By (1)

* Cited by examiner, † Cited by third party
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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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: 20100428

Termination date: 20171109