CN104138926A - Copper and aluminum composite pipe of refrigerating machine and processing technology thereof - Google Patents
Copper and aluminum composite pipe of refrigerating machine and processing technology thereof Download PDFInfo
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- CN104138926A CN104138926A CN201410289765.1A CN201410289765A CN104138926A CN 104138926 A CN104138926 A CN 104138926A CN 201410289765 A CN201410289765 A CN 201410289765A CN 104138926 A CN104138926 A CN 104138926A
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- copper
- aluminum composite
- copper aluminum
- composite pipes
- pipe
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Abstract
The invention discloses a copper and aluminum composite pipe of a refrigerating machine and a processing technology of the copper and aluminum composite pipe. The processing technology of the copper and aluminum composite pipe is characterized by comprising the steps of continuous casting of a copper and aluminum pipe blank; rolling process; stretching; flaw detecting; and annealing. Defects in the prior art are overcome; the outer side of the provided copper and aluminum composite pipe is provided with an anti-rust aluminum alloy, the inner side of the provided copper and aluminum composite pipe is provided with oxygen-free copper, and an interatomic metallic bonding layer is arranged between copper and aluminum, the pipe blank is cast by using a continuous casting technology for the copper and aluminum pipe blank, and then, a metallurgical bonding layer is formed on a copper and aluminum composite surface by using a hot rolling technology; and the copper and aluminum composite pipe is low in processing cost and can be widely applied into the refrigerating machine such as an air conditioner, a refrigerator to replace a copper pipe, so that a great number of copper resources are saved, and the cost of the refrigerating machine is reduced.
Description
Technical field
The present invention relates to refrigeration machine copper pipe technical field, specifically belong to a kind of refrigeration machine copper aluminum composite pipes and processing technology thereof.
Background technology
The development of several years of accurate copper pipe process has been that production capacity is greater than demand at present.The processing charges of copper pipe has dropped to and has allowed people be difficult to the level of accepting, and the benefit of each copper pipe enterprise all declines gradually.How to develop the new material for refrigeration air-conditioner, help air-conditioning industry to reduce costs production cost, improve the quality of products, lift technique competitiveness is expanded the living space that tubing is produced simultaneously, the baptism in face of Shi Bai enterprise.
Summary of the invention
A kind of refrigeration machine copper aluminum composite pipes and processing technology thereof have been the object of this invention is to provide, copper aluminum composite pipes outside is rust-preventing aluminum alloy, inner side is oxygen-free copper, between copper aluminium, be metallic bond binder course between atom, utilize copper aluminum pipe base continuous casting technology to cast out pipe, it is to make copper aluminium composite surface form metallurgical bonding layer that reusable heat is rolled technology, this product processing cost is low, can replace, in the refrigeration machines such as the extensive practicality of copper pipe and air-conditioning refrigerator, having saved a large amount of copper resources, reduce refrigeration machine cost.
The technical solution used in the present invention is as follows:
Refrigeration machine copper aluminum composite pipes and a processing technology thereof, is characterized in that: described copper aluminum composite pipes outside is rust-preventing aluminum alloy, and inner side is oxygen-free copper, is metallic bond binder course between atom between copper aluminium; Its processing technology is:
(1) copper aluminum pipe base continuous casting: the pipe that goes out requirement size with the horizontal composite continuous casting cast of high-efficiency copper aluminum pipe base continuous casting installation for casting employing;
(2) binding technology: pipe heat is rolled, made copper aluminium composite surface form metallurgical bonding layer and obtain copper aluminum composite pipes, the described temperature of rolling is 120～150 ℃;
(3) stretch: adopt plate drawing machine high-speed stretch copper aluminum composite pipes, realize overlength and produce efficiently;
(4) flaw detection: utilize the copper aluminum composite pipes after defectoscope degree stretches to detect a flaw;
(5) annealing: the copper aluminum composite pipes after adopting bright atmosphere annealing device to flaw detection is annealed, and in described annealing process, atmosphere gas is nitrogen;
(6) packing.
The described temperature of rolling is 134 ℃.
Described refrigeration machine copper aluminum composite pipes inside is provided with female thread structure.
Compared with the prior art, beneficial effect of the present invention is as follows:
Copper aluminum composite pipes provided by the invention outside is rust-preventing aluminum alloy, inner side is oxygen-free copper, it between copper aluminium, is metallic bond binder course between atom, utilize copper aluminum pipe base continuous casting technology to cast out pipe, it is to make copper aluminium composite surface form metallurgical bonding layer that reusable heat is rolled technology, and this product processing cost is low, can replace in the refrigeration machines such as the extensive practicality of copper pipe and air-conditioning refrigerator, save a large amount of copper resources, reduced refrigeration machine cost.。
The specific embodiment
Refrigeration machine copper aluminum composite pipes and a processing technology thereof, is characterized in that: described copper aluminum composite pipes outside is rust-preventing aluminum alloy, and inner side is oxygen-free copper, is metallic bond binder course between atom between copper aluminium; Its processing technology is:
(1) copper aluminum pipe base continuous casting: the pipe that goes out requirement size with the horizontal composite continuous casting cast of high-efficiency copper aluminum pipe base continuous casting installation for casting employing;
(2) binding technology: pipe heat is rolled, made copper aluminium composite surface form metallurgical bonding layer and obtain copper aluminum composite pipes, the described temperature of rolling is 120～150 ℃;
(3) stretch: adopt plate drawing machine high-speed stretch copper aluminum composite pipes, realize overlength and produce efficiently;
(4) flaw detection: utilize the copper aluminum composite pipes after defectoscope degree stretches to detect a flaw;
(5) annealing: the copper aluminum composite pipes after adopting bright atmosphere annealing device to flaw detection is annealed;
(6) packing;
In described annealing process, atmosphere gas is nitrogen; The described temperature of rolling is 134 ℃; Described refrigeration machine copper aluminum composite pipes inside is provided with female thread structure.
Claims (3)
1. refrigeration machine copper aluminum composite pipes and a processing technology thereof, is characterized in that: described copper aluminum composite pipes outside is rust-preventing aluminum alloy, and inner side is oxygen-free copper, is metallic bond binder course between atom between copper aluminium; Its processing technology is:
(1) copper aluminum pipe base continuous casting: the pipe that goes out requirement size with the horizontal composite continuous casting cast of high-efficiency copper aluminum pipe base continuous casting installation for casting employing;
(2) binding technology: pipe heat is rolled, made copper aluminium composite surface form metallurgical bonding layer and obtain copper aluminum composite pipes, the described temperature of rolling is 120～150 ℃;
(3) stretch: adopt plate drawing machine high-speed stretch copper aluminum composite pipes, realize overlength and produce efficiently;
(4) flaw detection: utilize the copper aluminum composite pipes after defectoscope degree stretches to detect a flaw;
(5) annealing: the copper aluminum composite pipes after adopting bright atmosphere annealing device to flaw detection is annealed, and in described annealing process, atmosphere gas is nitrogen;
(6) packing.
2. a kind of refrigeration machine copper aluminum composite pipes and processing technology thereof according to claim 1, is characterized in that: the described temperature of rolling is 134 ℃.
3. a kind of refrigeration machine copper aluminum composite pipes and processing technology thereof according to claim 1, is characterized in that: described refrigeration machine copper aluminum composite pipes inside is provided with female thread structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410289765.1A CN104138926A (en) | 2014-06-20 | 2014-06-20 | Copper and aluminum composite pipe of refrigerating machine and processing technology thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410289765.1A CN104138926A (en) | 2014-06-20 | 2014-06-20 | Copper and aluminum composite pipe of refrigerating machine and processing technology thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104138926A true CN104138926A (en) | 2014-11-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410289765.1A Pending CN104138926A (en) | 2014-06-20 | 2014-06-20 | Copper and aluminum composite pipe of refrigerating machine and processing technology thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104138926A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5265793A (en) * | 1989-02-07 | 1993-11-30 | Usui Kokusai Sangyo Kabushiki Kaisha | Small thick-walled composite metal tubing and process of producing the same |
| EP1468761A1 (en) * | 2003-04-17 | 2004-10-20 | KM Europa Metal Aktiengesellschaft | Casting roll for casting of aluminium or aluminium alloys strips |
| CN1827811A (en) * | 2006-03-28 | 2006-09-06 | 江阴新华宏铜业有限公司 | Seamless copper alloy pipe with excellent anti-corrosion performance for heat exchanger and preparation method thereof |
| CN1843646A (en) * | 2006-04-24 | 2006-10-11 | 江苏兴荣高新科技股份有限公司 | Method for manufacturing copper aluminium composite tubing and copper aluminium tubing produced thereby |
| CN102418813A (en) * | 2010-09-28 | 2012-04-18 | 江苏兴荣高新科技股份有限公司 | Novel copper-aluminum composite pipe |
| CN103357696A (en) * | 2013-07-18 | 2013-10-23 | 中铝洛阳铜业有限公司 | Production manufacturing process of large-diameter copper-nickel alloy seamless pipe |
-
2014
- 2014-06-20 CN CN201410289765.1A patent/CN104138926A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5265793A (en) * | 1989-02-07 | 1993-11-30 | Usui Kokusai Sangyo Kabushiki Kaisha | Small thick-walled composite metal tubing and process of producing the same |
| EP1468761A1 (en) * | 2003-04-17 | 2004-10-20 | KM Europa Metal Aktiengesellschaft | Casting roll for casting of aluminium or aluminium alloys strips |
| CN1827811A (en) * | 2006-03-28 | 2006-09-06 | 江阴新华宏铜业有限公司 | Seamless copper alloy pipe with excellent anti-corrosion performance for heat exchanger and preparation method thereof |
| CN1843646A (en) * | 2006-04-24 | 2006-10-11 | 江苏兴荣高新科技股份有限公司 | Method for manufacturing copper aluminium composite tubing and copper aluminium tubing produced thereby |
| CN102418813A (en) * | 2010-09-28 | 2012-04-18 | 江苏兴荣高新科技股份有限公司 | Novel copper-aluminum composite pipe |
| CN103357696A (en) * | 2013-07-18 | 2013-10-23 | 中铝洛阳铜业有限公司 | Production manufacturing process of large-diameter copper-nickel alloy seamless pipe |
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Application publication date: 20141112 |
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| RJ01 | Rejection of invention patent application after publication |