CN100519173C - Composite layer metal foil for braze - Google Patents
Composite layer metal foil for braze Download PDFInfo
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- CN100519173C CN100519173C CNB031324096A CN03132409A CN100519173C CN 100519173 C CN100519173 C CN 100519173C CN B031324096 A CNB031324096 A CN B031324096A CN 03132409 A CN03132409 A CN 03132409A CN 100519173 C CN100519173 C CN 100519173C
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- metal forming
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Abstract
A soldering composite metal foil for the air conditioning tubes in the air conditioner of car is composed of the substrate containing Zn, Cu, Mg, Mn, Fe, Si, Ti and Al and one or two surface layers.
Description
Technical field
The present invention is the erosion-resisting extra play of a kind of metal, particularly a kind of metal composite laminate that uses in the air-conditioning pipe that use in fields such as air-conditioning.
Background technology
The composition matrix of existing brazing sheet is the LF21 alloy, and brazing layer is the LT13 alloy.The percentage by weight of matrix consists of: the Al of 0.20Cu, 0.05Mg, 1.0～1.6Mn, 0.7Fe, 0.60Si, 0.10Zn, other element summation 0.15 and surplus.The percentage by weight of brazing layer consists of the Al of 0.15Cu ten Zn, 0.15Mg, 0.50Mn, 0.50Fe, 6.8～8.2Si, 0.15Ti, 0.10Ca, other element summation 0.15 and surplus.Composite insulating foil is employed in the motorcar air conditioner of being everlasting, and the structure of former radiator is that many tubing intert into composite insulating foil after soldering forms.Can change the tubing that damages during use.The application of porous flat pipe in air conditioning for automobiles along with continuously extruded technology is produced proposed new requirement to heat transmission soldering composite insulating foil gradually.The motorcar air conditioner made from porous flat pipe by an antipriming pipe after processing with the composite insulating foil brazing filler metal together.In case flat tube has a place to damage like this, then can cause integral body to scrap, and existing composite insulating foil corrosion resistance is better than the anti-corrosion property energy of porous flat pipe material.So in use porous flat pipe damages prior to composite insulating foil often, cause whole scrapping.
Summary of the invention
The invention provides a kind of specific performance properties that satisfies soldering, satisfy the soldering composite bed metal forming of the requirement of corrosion resistance.
The object of the present invention is achieved like this: soldering composite bed metal forming comprises: the matrix of acieral, be overlying on a side of described matrix or the brazing layer of both sides, and contain percentage by weight in the described matrix and be 3～8 Zn element,
Soldering composite bed metal forming also contains copper, manganese and silicon in the described acieral matrix, and its percentage by weight is: 0.03～0.04Cu, 1.25～1.4Mn, 9Si.
Above-mentioned soldering composite bed metal forming also contains the composition of copper, magnesium, manganese and titanium in the described brazing layer, its percentage by weight is: 0.3Cu, 0.05Mg, 0.04Mn, 0.1Ti.
Above-mentioned soldering composite bed metal forming also contains the composition of iron, tin, zinc in the described brazing layer, its percentage by weight is: 0.4Fe, 6Sn, 2Zn.
The invention has the advantages that:
1. product of the present invention can adopt the identical method of former composite insulating foil to carry out processing and fabricating.Owing in brazing layer, added a certain amount of Zn element; make the corrosion rate of the corrosion rate summary of composite insulating foil faster than the porous flat pipe material; can handle once more after in time finding porous flat pipe has been played protection, can improve protective effect effectively, improve its service life porous flat pipe.
2. the replacing of composite insulating foil is more convenient, utilizes this product to safeguard the air-conditioning pipe fast.
3. contain silicon, manganese and aluminium in the brazing layer, composition is near LF21, but carried out the adjustment of metallographic balance, makes that solderability is good under the situation that increases the Zn element.
The specific embodiment
Embodiment 1:
Soldering composite bed metal forming is made up of near the matrix of LF21 and the composite bed that is coated on matrix one side or both sides composition, contains percentage by weight in the described matrix and be 3,4,5,6,7 or 8 Zn element;
Soldering composite bed metal forming, the percentage by weight of the composite bed that matches with above-mentioned matrix are formed: 0.20Cu, 0.03Mg, 0.05Mn, 0.8Fe, 8.5Si, 0.80Zn, 0.2Ti and 0.1Al.
Embodiment 2:
Soldering composite bed metal forming, the percentage by weight of the composite bed that matches with above-mentioned matrix are formed: 0.30Cu, 0.05Mg, 0.04Mn, 0.60Fe, 9.00Sn, 1.00Zn, 0.20Ti, 0.4Al and 6Sn.
Embodiment 3:
Above-mentioned soldering composite bed metal forming also contains copper, manganese and silicon in the described acieral matrix, and its percentage by weight is: 0.03～0.04Cu, 1.25～1.4Mn, 9Si.
Embodiment 4:
Above-mentioned soldering composite bed metal forming also contains the composition of copper, magnesium, manganese and titanium in the described brazing layer, its percentage by weight is: 0.3Cu, 0.05Mg, 0.04Mn, 0.1Ti.
Embodiment 5:
Above-mentioned soldering composite bed metal forming also contains the composition of iron, tin, zinc in the described brazing layer, its percentage by weight is: 0.4Fe, 6Sn, 2Zn.
Claims (3)
1, a kind of soldering composite bed metal forming, comprise: the matrix of acieral, be overlying on a side of described matrix or the brazing layer of both sides, contain percentage by weight in the described matrix and be 3～8 Zn element, it is characterized in that: also contain copper, manganese and silicon in the described acieral matrix, its percentage by weight is: 0.03～0.04Cu, 1.25～1.4Mn, 9Si.
2, soldering according to claim 1 composite bed metal forming is characterized in that: also contain the composition of copper, magnesium, manganese and titanium in the described brazing layer, its percentage by weight is: 0.3Cu, 0.05Mg, 0.04Mn, 0.1Ti.
3, soldering according to claim 1 composite bed metal forming is characterized in that: also contain the composition of iron, tin, zinc in the described brazing layer, its percentage by weight is: 0.4Fe, 6Sn, 2Zn.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031324096A CN100519173C (en) | 2003-05-30 | 2003-05-30 | Composite layer metal foil for braze |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031324096A CN100519173C (en) | 2003-05-30 | 2003-05-30 | Composite layer metal foil for braze |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1552550A CN1552550A (en) | 2004-12-08 |
| CN100519173C true CN100519173C (en) | 2009-07-29 |
Family
ID=34322988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031324096A Expired - Lifetime CN100519173C (en) | 2003-05-30 | 2003-05-30 | Composite layer metal foil for braze |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100519173C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104110995B (en) * | 2014-04-30 | 2017-02-01 | 美的集团股份有限公司 | Composite flat tube, parallel-flow heat exchanger and air conditioner |
| CN108340133B (en) * | 2018-01-05 | 2019-04-12 | 乳源东阳光优艾希杰精箔有限公司 | A method of promoting heat exchanger composite fin foil dealation performance |
-
2003
- 2003-05-30 CN CNB031324096A patent/CN100519173C/en not_active Expired - Lifetime
Non-Patent Citations (2)
| Title |
|---|
| 抗塌陷钎焊铝复合箔的生产技术. 姜远军.轻合金加工技术，第29卷第1期. 2001 |
| 抗塌陷钎焊铝复合箔的生产技术. 姜远军.轻合金加工技术，第29卷第1期. 2001 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1552550A (en) | 2004-12-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090729 |