CN1677024A - Copper-aluminium combined pipeline piece with identical joint diameter and aluminium pipe - Google Patents
Copper-aluminium combined pipeline piece with identical joint diameter and aluminium pipe Download PDFInfo
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- CN1677024A CN1677024A CN 200510043347 CN200510043347A CN1677024A CN 1677024 A CN1677024 A CN 1677024A CN 200510043347 CN200510043347 CN 200510043347 CN 200510043347 A CN200510043347 A CN 200510043347A CN 1677024 A CN1677024 A CN 1677024A
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Abstract
The invention discloses a copper aluminum tube component of the same connecting terminal diameter, features that on one end or two end of the aluminum tube is welded with a copper tube and the contacting surface of the copper and aluminum tube with the same or nearly the same diameter, is the cone sleeve surface with copper tube inside and aluminum tube outside. The sleeved surface diameter phy 1 is equal or close to the diameter phy 2 of the aluminum tube. The invention is of fine welding quality and large welding surface area, the connecting terminal is of nearly the same size as aluminum tube although the sleeved terminal is adopted, which, ensures the product refrigerating requirement and following process structural requirement. Thus, the invention can be applied to refrigerating pipes which has a high requirement on compaction, cleanness and special requirement on flow volume, inner and outer diameter, to products such as air conditioner, refrigerator, show chest, drinking machine, drying machine, and other refrigerating products.
Description
Technical field
The present invention relates to a kind of refrigeration system is used, the joint caliber copper-aluminium combined pipeline piece identical with aluminum pipe.
Background technology
Cold-producing medium is the operation material that carries out kind of refrigeration cycle in refrigerating plant, in the circulating pipe system of cold-producing medium for year cold medium, refrigeration is relevant with the flow of cold-producing medium, the undergauge that causes because of technological reason in the pipeline will influence the flow velocity and the flow of cold-producing medium, finally will have influence on the properties of product of refrigeration product, be very important so guarantee the internal diameter uniformity consistency of pipeline and joint.
Prior art adopts copper pipe to be inserted into the mode that aluminum pipe welds then, although still can obtain the pipe joint structure of good compactness, but behind the copper pipe undergauge of this kind copper-aluminium combined pipeline piece joint, internal diameter obviously reduces, limited the flow of cold-producing medium, thereby refrigeration has been produced certain influence; In addition, in some productions,, limited copper-aluminium combined range of application thus significantly because the undergauge of joint copper pipe causes carrying out expand tube processing such as products such as A/C evaporator and condensers.
Summary of the invention
The purpose of this invention is to provide a kind of joint caliber copper-aluminium combined pipeline piece identical with aluminum pipe, enlarging range of application and the result of use based on the copper aluminum pipe built-up joint structure of aluminum pipe, the pipeline structure spare by the improvement joint design is to remedy the above-mentioned deficiency of prior art.
The present invention is welded with one section copper pipe in the one or both ends of aluminum pipe, and is that copper pipe is at interior, aluminum pipe taper socket face outside at the identical or close copper pipe of external diameter and the binding face of aluminum pipe.
The processing technology step is at first the weld part of copper tube end to be processed into the very thin undergauge straight tube-like of tube wall, copper pipe that cover is connected and aluminum pipe are met sb. at the airport by Pressure Welding and are welded again, form the welding point of copper-aluminium combined pipeline piece, to the undergauge straight tube-like copper pipe enlarging of welding point inside, formation joint internal diameter size equates with the internal diameter of aluminum pipe or is approaching then.Because the straight tube-like tube wall behind the copper pipe undergauge is very thin as previously mentioned, so smooth smooth no step in pipeline copper aluminium joint portion after the processing, be that the pipeline internal diameter φ 1 of taper socket plane tie equates with the internal diameter φ 2 of aluminum pipe or approaching, with the requirement of abundant assurance refrigerant flow and subsequent machining technology.
Its welding quality of the present invention who constructs thus is good, the fusion face width, although adopted the socket joint type joint design, the inside and outside caliber of joint can be accomplished basic identical with aluminum pipe, thereby has guaranteed the refrigeration and the following process structural requirement thereof of product.Therefore, the present invention can be used for compactness, cleannes are required refrigeration pipe high and that flow and inside and outside footpath are had specific (special) requirements.
Description of drawings
The basic schematic diagram of Fig. 1 copper aluminum pipe of the present invention combined pipeline structure.
1 copper pipe, 2 aluminum pipe A taper socket faces wherein.
The specific embodiment
As Fig. 1, the present invention is welded with one section copper pipe 1 in the one or both ends of aluminum pipe 2, and the binding face of identical or close copper pipe 1 of external diameter and aluminum pipe 2 be copper pipe at interior, aluminum pipe taper socket face A outside, the pipeline internal diameter φ 1 of the welding point that this taper socket face A constitutes equates with the internal diameter φ 2 of aluminum pipe 2 or is approaching.
The processing technology step is at first the weld part of copper tube end to be processed into the very thin undergauge straight tube-like of tube wall, copper pipe that cover is connected and aluminum pipe are met sb. at the airport by Pressure Welding and are welded again, form the welding point of copper-aluminium combined pipeline piece, to the undergauge straight tube-like copper pipe enlarging of welding point inside, formation joint internal diameter size equates with the internal diameter of aluminum pipe or is approaching then.Because the straight tube-like tube wall behind the copper pipe undergauge is very thin as previously mentioned, so smooth smooth no step in pipeline copper aluminium joint portion after the processing, be that the pipeline internal diameter φ 1 of taper socket plane tie equates with the internal diameter φ 2 of aluminum pipe or approaching, with the requirement of abundant assurance refrigerant flow and subsequent machining technology.
Above-mentioned detail operations process on bonding machine is that copper pipe and aluminum pipe are separately fixed on the two arrays of electrodes of float electrode that Pressure Welding meets sb. at the airport and fixed electrode, and the controlled pressure bonding machine moves in the insertion aluminum pipe copper pipe, when the solder side of the copper pipe of hard is ground away the oxide layer on the soft aluminum pipe inwall to electrifying electrodes, enter until the welding bread of copper pipe and to go to the back to disconnect the source of welding current in the aluminum pipe, form welding point.
As Fig. 1, the copper pipe straight tube-like undergauge of taper socket face A place inner surface is carried out enlarging (as punching press) processing, control joint internal diameter size φ 1 equates with the internal diameter φ 2 of aluminum pipe or is approaching.Because the straight tube-like tube wall behind the copper pipe undergauge is very thin as previously mentioned, so the pipeline after the processing is inner smooth smooth
The present invention selects for use the external diameter of copper pipe 1 and the aluminum pipe 2 can be identical, also can be slightly different, owing to adopted the socket mode to weld, the present invention has also overcome the requirement for restriction of conventional method to copper aluminum pipe pipeline material wall thickness.
As Fig. 1, the present invention is welded with one section copper pipe 1 in the one or both ends of aluminum pipe 2, form copper-aluminium combined, the binding face that is characterized in 2 of copper pipes 1, aluminum pipe is taper socket face A, and the internal diameter φ 1 at taper socket face A place is basic identical with the internal diameter φ 2 of aluminum pipe 2, and not only compactness is good, cost is low, and, the inside and outside diameter of pipeline can be accomplished basically identical, has both improved the scope of application of copper-aluminium combined pipeline, has satisfied the requirement of subsequent technique to structure again.
Therefore can be widely used in the refrigeration products such as air-conditioner, refrigerator, refrigerator-freezer, showcase, water dispenser, dehumidifier.
Claims (1)
1 one kinds of copper-aluminium combined pipeline pieces that the joint caliber is identical with aluminum pipe, it is characterized in that being welded with one section copper pipe (1) in the one or both ends of aluminum pipe (2), the combination of copper pipe that external diameter is identical or close (1) and aluminum pipe (2) is the socket joint type structure, and copper and aluminium welding connect binding face be copper pipe at interior, aluminum pipe taper socket face (3) outside, the internal diameter that this taper socket face (3) constitutes the copper-aluminium joint place equates with aluminum pipe (2) internal diameter or is approaching.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100433475A CN100504251C (en) | 2005-04-15 | 2005-04-15 | Copper-aluminium combined pipeline piece with identical inner and outer diameter with aluminum pipe and manufacture process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100433475A CN100504251C (en) | 2005-04-15 | 2005-04-15 | Copper-aluminium combined pipeline piece with identical inner and outer diameter with aluminum pipe and manufacture process thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1677024A true CN1677024A (en) | 2005-10-05 |
| CN100504251C CN100504251C (en) | 2009-06-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100433475A Active CN100504251C (en) | 2005-04-15 | 2005-04-15 | Copper-aluminium combined pipeline piece with identical inner and outer diameter with aluminum pipe and manufacture process thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN100504251C (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100420892C (en) * | 2006-09-20 | 2008-09-24 | 左铁军 | Inner diameter of copper aluminum joint, copper aluminum joint with diameter being equal to inner diameter of aluminum pipe, and preparation method |
| CN100445625C (en) * | 2006-09-20 | 2008-12-24 | 左铁军 | Welded joint of thin wall copper aluminum pipe with no eutectic structure, and preparation method |
| CN100451466C (en) * | 2007-01-30 | 2009-01-14 | 孙海潮 | Split air-conditioner using aluminium refrigerant pipeline |
| CN101598251B (en) * | 2008-06-05 | 2012-05-23 | 左铁军 | Copper-aluminium joint containing canine-shaped columnar crystal structure and preparation method thereof |
| CN102773598A (en) * | 2012-08-13 | 2012-11-14 | 左铁军 | Novel air conditioning pipe aluminum welding process by utilizing copper as welding medium |
| CN114923941A (en) * | 2022-07-22 | 2022-08-19 | 中国科学院遗传与发育生物学研究所 | Sample rotating platform applied to frozen scanning electron microscope |
-
2005
- 2005-04-15 CN CNB2005100433475A patent/CN100504251C/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100420892C (en) * | 2006-09-20 | 2008-09-24 | 左铁军 | Inner diameter of copper aluminum joint, copper aluminum joint with diameter being equal to inner diameter of aluminum pipe, and preparation method |
| CN100445625C (en) * | 2006-09-20 | 2008-12-24 | 左铁军 | Welded joint of thin wall copper aluminum pipe with no eutectic structure, and preparation method |
| CN100451466C (en) * | 2007-01-30 | 2009-01-14 | 孙海潮 | Split air-conditioner using aluminium refrigerant pipeline |
| CN101598251B (en) * | 2008-06-05 | 2012-05-23 | 左铁军 | Copper-aluminium joint containing canine-shaped columnar crystal structure and preparation method thereof |
| CN102773598A (en) * | 2012-08-13 | 2012-11-14 | 左铁军 | Novel air conditioning pipe aluminum welding process by utilizing copper as welding medium |
| CN114923941A (en) * | 2022-07-22 | 2022-08-19 | 中国科学院遗传与发育生物学研究所 | Sample rotating platform applied to frozen scanning electron microscope |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100504251C (en) | 2009-06-24 |
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