CN104384871B - A kind of production technology of aluminium alloy brazing sheet - Google Patents
A kind of production technology of aluminium alloy brazing sheet Download PDFInfo
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- CN104384871B CN104384871B CN201410776491.9A CN201410776491A CN104384871B CN 104384871 B CN104384871 B CN 104384871B CN 201410776491 A CN201410776491 A CN 201410776491A CN 104384871 B CN104384871 B CN 104384871B
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- ingot casting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/38—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling sheets of limited length, e.g. folded sheets, superimposed sheets, pack rolling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
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Abstract
The invention provides the production technology of a kind of aluminium alloy brazing sheet, including, every for matrix ingot casting facing cut is cut 15～20mm, obtains the ingot casting after milling；Alclad sheet milling 15～20mm, obtains the alclad sheet after milling；Then the ingot casting after milling carries out hot rolling, obtains the ingot casting after hot rolling；Finally it is combined with the ingot casting after the alclad sheet after milling and hot rolling, hot rolling, obtains aluminium alloy brazing sheet, wherein, measure by controlling the milling face of ingot casting and alclad sheet, and the ingot casting elder generation hot rolling after milling is combined again, make the aluminium alloy brazing sheet bubble obtained few, improve the yield rate of product.
Description
Technical field
The present invention relates to alloy field, particularly relate to the production technology of a kind of aluminium alloy brazing sheet.
Background technology
Aluminium alloy brazing sheet is mainly used in oxygen generating plant and automobile radiators, and it is lightweight because having, corrosion resistant
The advantages such as erosion, good, the dependable performance of soldering and obtain extensively application, and along with Domestic Automotive Industry is rapid
Development and space division factory process modification, to the uniformity of aluminium alloy brazing material coating thickness, size, property
The indexs such as energy have had the higher requirement of renewal.
The production of aluminium alloy brazing sheet is mainly method hot rolling and cold rolling compound, but cold rolling mode can not
Produce the composite plate of big specification, and seam is more difficult when each layer metal toughness differs greatly, so aluminum
Alloy brazed plate is combined frequently with the method for hot rolling；At present, the most many units are to method hot rolling mode
Studied, but, at present in actual production, owing to brazing sheet exists air bubble problem so that finished product
Rate is relatively low.
Summary of the invention
In view of this, the technical problem to be solved is to provide the life of a kind of aluminium alloy brazing sheet
Production. art, the aluminium alloy brazing sheet gas that the production technology of the aluminium alloy brazing sheet that the present invention provides prepares
Bubble significantly reduces, and yield rate improves.
The invention provides the production technology of a kind of aluminium alloy brazing sheet, including:
1) every for matrix ingot casting facing cut is cut 15～20mm, obtain the ingot casting after milling；
By alclad sheet ingot casting milling 15～20mm, obtain the alclad sheet ingot casting after milling；
2) the matrix ingot casting after milling is carried out hot rolling, obtain the ingot casting after hot rolling；
Alclad sheet ingot casting after milling is carried out hot rolling, obtains alclad sheet；
3) it is combined with the ingot casting after alclad sheet and hot rolling, hot rolling, obtains aluminium alloy brazing sheet.
Preferably, the hydrogen content of described matrix ingot casting is 0.001～0.05mL/100g.
Preferably, the milling amount that the described every facing cut of matrix ingot casting is cut is 15～18mm.
Preferably, the milling amount of described alclad sheet ingot casting milling is 15～18mm.
Preferably, described step 2) the temperature of hot rolling be 450～500 DEG C.
Preferably, described step 2) time of hot rolling be 6～10 hours.
Preferably, described step 3) the temperature of hot rolling be 450～500 DEG C.
Preferably, described step 3) time of hot rolling be 10～15 hours.
Compared with prior art, the invention provides the production technology of a kind of aluminium alloy brazing sheet, including,
Every for matrix ingot casting facing cut is cut 15～20mm, obtains the ingot casting after milling；Alclad sheet ingot casting milling
15～20mm, obtain the alclad sheet after milling；Then the ingot casting after milling carries out hot rolling, after obtaining hot rolling
Ingot casting, the alclad sheet ingot casting after milling is carried out hot rolling, obtains alclad sheet；Finally by alclad sheet and heat
Ingot casting after rolling is combined, and hot rolling obtains aluminium alloy brazing sheet, wherein, by controlling ingot casting and alclad
The milling face amount of plate, and the ingot casting elder generation hot rolling after milling is combined again so that the aluminium alloy brazing sheet obtained
Bubble is few, improves the yield rate of product, test result indicate that, prepares aluminum by the method for the present invention and closes
Gold brazing sheet, yield rate is up to 60.51%, and bubble percent defective is less than 5%.
Detailed description of the invention
The invention provides the production technology of a kind of aluminium alloy brazing sheet, including:
1) every for matrix ingot casting facing cut is cut 15～20mm, obtain the ingot casting after milling；
By alclad sheet ingot casting milling 15～20mm, obtain the alclad sheet ingot casting after milling；
2) ingot casting after milling is carried out hot rolling, obtain the ingot casting after hot rolling；
Alclad sheet ingot casting after milling is carried out hot rolling, obtains alclad sheet；
3) it is combined with the ingot casting after alclad sheet and hot rolling, hot rolling, obtains aluminium alloy brazing sheet.
According to the present invention, first every for matrix ingot casting facing cut is cut 15～20mm, obtain the ingot casting after milling；
By alclad sheet ingot casting milling 15～20mm, obtain the alclad sheet ingot casting after milling；Wherein, described matrix casting
The milling amount that the every facing cut of ingot is cut is preferably 15～18mm, more preferably 15～16mm；Described alclad sheet ingot casting
The milling amount of milling is preferably 15～18mm, more preferably 15～16mm；The hydrogen of described matrix ingot casting contains
Amount preferably 0.001～0.05mL/100g, more preferably 0.01～0.05mL/100g, matrix of the present invention
The content of ingot casting has important impact, matrix ingot casting hydrogen to the air bubble content obtained in aluminium alloy brazing sheet
When Gas content is too high, the air bubble content of aluminium alloy brazing sheet can be had a strong impact on, and then affect yield rate, but
Be requirement air bubble content the lowest time, can be greatly improved the production requirement to matrix ingot casting, thus increase cost.
According to the present invention, the ingot casting after milling is carried out hot rolling by the present invention, obtains the ingot casting after hot rolling；Institute
The temperature stating hot rolling is preferably 450～500 DEG C；The time of described hot rolling is 6～10 hours；The present invention passes through
The ingot casting of milling is carried out hot rolling so that it is first reach the thickness close with pre-paying product thickness, and then make
In the aluminium alloy brazing sheet obtained, bubble is few, substantially increases the qualification rate of product；By the alclad after milling
Plate ingot casting carries out hot rolling, obtains alclad sheet；The temperature of described hot rolling is preferably 450～500 DEG C；Described hot rolling
Time be 6～10 hours.
According to the present invention, the ingot casting after alclad sheet and hot rolling is combined, hot rolling, obtains aluminium alloy brazing sheet；
The temperature of described hot rolling is preferably 450～500 DEG C；The time of described hot rolling is preferably 10～15 hours, more excellent
Elect 12～14 hours as.
So that the brazing sheet obtained can be good at being combined, improving qualification rate, the present invention the most also exists
Before alclad, the greasy dirt on alclad sheet surface, aluminum bits, dust and impurity are cleaned out；And by after alclad
Plate the shove charge time need to less than two days because, overlong time, the casting after alclad sheet and hot rolling can be made
Substantial amounts of dust, aluminum bits and other foreign body is entered between ingot.
The invention provides the production technology of a kind of aluminium alloy brazing sheet, by controlling ingot casting and alclad sheet
Milling face amount, and the ingot casting elder generation hot rolling after milling is combined again so that the aluminium alloy brazing sheet gas obtained
Bubble is few, improves the yield rate of product.
Technical scheme below in conjunction with the embodiment of the present invention is clearly and completely described, it is clear that institute
The embodiment described is only a part of embodiment of the present invention rather than whole embodiments.Based on this
Embodiment in bright, those of ordinary skill in the art are obtained under not making creative work premise
Every other embodiment, broadly falls into the scope of protection of the invention.
Embodiment 1
Southwestern Aluminum calendering factories 3 in 2013～May, by by the 3003 of 400mm*1320*2500mm
The every facing cut of ingot casting cuts 15mm, simultaneously by alclad sheet ingot casting milling 15mm, 500 DEG C of hot rollings to 30mm,
Obtain the alclad sheet after hot rolling, then the ingot casting after milling is rolled down to 300mm in 500 DEG C, then by heat
Alclad sheet after rolling and the ingot casting after rolling are combined, and 500 DEG C of rollings obtain aluminium alloy brazing sheet.
Shown by testing result, 3～May produce aluminium alloy brazing sheet in bubble percent defective be 0.5%,
Finished product rate is 66.51%.
Embodiment 2
Southwestern Aluminum calendering factories 6 in 2013～August, by by the 3003 of 400mm*1320*2500mm
The every facing cut of ingot casting cuts 17mm, simultaneously by alclad sheet ingot casting milling 17mm, 500 DEG C of hot rollings to 40mm,
Obtain the alclad sheet after hot rolling, then the ingot casting after milling is rolled down to 250mm in 500 DEG C, then by heat
Alclad sheet after rolling and the ingot casting after rolling are combined, and 500 DEG C of rollings obtain aluminium alloy brazing sheet.
Shown by testing result, 6～August produce aluminium alloy brazing sheet in bubble percent defective be 0.6%,
Finished product rate is 67.45%.
Embodiment 3
Southwestern Aluminum calendering factories 9 in 2013～December, by by the 3003 of 400mm*1320*2500mm
The every facing cut of ingot casting cuts 16mm, simultaneously by alclad sheet ingot casting milling 16mm, 500 DEG C of hot rollings to 50mm,
Obtain the alclad sheet after hot rolling, then the ingot casting after milling is rolled down to 300mm in 500 DEG C, then by heat
Alclad sheet after rolling and the ingot casting after rolling are combined, and 500 DEG C of rollings obtain aluminium alloy brazing sheet.
Shown by testing result, 9～December produce aluminium alloy brazing sheet in bubble percent defective be 0.8%,
Finished product rate is 67.05%.
The explanation of above example is only intended to help to understand method and the core concept thereof of the present invention.Should
Point out, for those skilled in the art, under the premise without departing from the principles of the invention,
The present invention can also be carried out some improvement and modification, these improve and modification also falls into right of the present invention and wants
In the protection domain asked.
Claims (7)
1. a production technology for aluminium alloy brazing sheet, including:
1) every for matrix ingot casting facing cut is cut 15～20mm, obtain the matrix ingot casting after milling；
The hydrogen content of described matrix ingot casting is 0.001～0.05mL/100g；
By alclad sheet ingot casting milling 15～20mm, obtain the alclad sheet ingot casting after milling；
2) the matrix ingot casting after milling is carried out hot rolling, obtain the matrix ingot casting after hot rolling；
Alclad sheet ingot casting after milling is carried out hot rolling, obtains alclad sheet；
3) it is combined with the matrix ingot casting after alclad sheet and hot rolling, hot rolling, obtains aluminium alloy brazing sheet.
Production technology the most according to claim 1, it is characterised in that described matrix ingot casting is every
The milling amount that facing cut is cut is 15～18mm.
Production technology the most according to claim 1, it is characterised in that described alclad sheet ingot casting
The milling amount of milling is 15～18mm.
Production technology the most according to claim 1, it is characterised in that described step 2)
The temperature of hot rolling is 450～500 DEG C.
Production technology the most according to claim 1, it is characterised in that described step 2)
The time of hot rolling is 6～10 hours.
Production technology the most according to claim 1, it is characterised in that described step 3)
The temperature of hot rolling is 450～500 DEG C.
Production technology the most according to claim 1, it is characterised in that described step 3)
The time of hot rolling is 10～15 hours.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410776491.9A CN104384871B (en) | 2014-12-15 | 2014-12-15 | A kind of production technology of aluminium alloy brazing sheet |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410776491.9A CN104384871B (en) | 2014-12-15 | 2014-12-15 | A kind of production technology of aluminium alloy brazing sheet |
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| CN104384871A CN104384871A (en) | 2015-03-04 |
| CN104384871B true CN104384871B (en) | 2016-08-24 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111716028B (en) * | 2019-03-22 | 2022-04-26 | 西南铝业（集团）有限责任公司 | Welding process of aluminum alloy composite board |
| CN112045371A (en) * | 2020-09-07 | 2020-12-08 | 西南铝业（集团）有限责任公司 | Production process for improving coating uniformity of aluminum-coated product |
| CN114434108B (en) * | 2022-02-18 | 2024-06-21 | 西南铝业（集团）有限责任公司 | Rolling method of brazing sheet |
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| CN101069941A (en) * | 2007-06-13 | 2007-11-14 | 潍坊三源铝业有限公司 | Method for preparing aluminium alloy composite material for brazing type heat transmission |
| CN101186009A (en) * | 2007-12-20 | 2008-05-28 | 江苏常铝铝业股份有限公司 | Method for manufacturing composite aluminum foil for car heat exchanger |
| CN101308001A (en) * | 2008-05-30 | 2008-11-19 | 苏州有色金属研究院有限公司 | High performance aluminum alloy composite foil for heat converter and method of manufacture |
| CN102285163A (en) * | 2011-06-09 | 2011-12-21 | 南通华特铝热传输材料有限公司 | Compound brazing aluminum foil material for automobile heat radiator and manufacturing method thereof |
| CN102554585A (en) * | 2010-12-30 | 2012-07-11 | 萨帕铝热传输(上海)有限公司 | Aluminum alloy brazing sheet and manufacturing method thereof as well radiator part |
| CN103072330A (en) * | 2013-02-21 | 2013-05-01 | 南通恒秀铝热传输材料有限公司 | Aluminum alloy sheet for lateral plate of automobile radiator and manufacturing method for aluminum alloy sheet |
| US8574723B2 (en) * | 2008-04-18 | 2013-11-05 | Sapa Heat Transfer Ab | Sandwich material for brazing with high strength at high temperature |
| CN103752612A (en) * | 2014-01-26 | 2014-04-30 | 美铝（昆山）铝业有限公司 | Production method for five-layer aluminum alloy composite board strip blanks |
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2014
- 2014-12-15 CN CN201410776491.9A patent/CN104384871B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101069941A (en) * | 2007-06-13 | 2007-11-14 | 潍坊三源铝业有限公司 | Method for preparing aluminium alloy composite material for brazing type heat transmission |
| CN101186009A (en) * | 2007-12-20 | 2008-05-28 | 江苏常铝铝业股份有限公司 | Method for manufacturing composite aluminum foil for car heat exchanger |
| US8574723B2 (en) * | 2008-04-18 | 2013-11-05 | Sapa Heat Transfer Ab | Sandwich material for brazing with high strength at high temperature |
| CN101308001A (en) * | 2008-05-30 | 2008-11-19 | 苏州有色金属研究院有限公司 | High performance aluminum alloy composite foil for heat converter and method of manufacture |
| CN102554585A (en) * | 2010-12-30 | 2012-07-11 | 萨帕铝热传输(上海)有限公司 | Aluminum alloy brazing sheet and manufacturing method thereof as well radiator part |
| CN102285163A (en) * | 2011-06-09 | 2011-12-21 | 南通华特铝热传输材料有限公司 | Compound brazing aluminum foil material for automobile heat radiator and manufacturing method thereof |
| CN103072330A (en) * | 2013-02-21 | 2013-05-01 | 南通恒秀铝热传输材料有限公司 | Aluminum alloy sheet for lateral plate of automobile radiator and manufacturing method for aluminum alloy sheet |
| CN103752612A (en) * | 2014-01-26 | 2014-04-30 | 美铝（昆山）铝业有限公司 | Production method for five-layer aluminum alloy composite board strip blanks |
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| CN104384871A (en) | 2015-03-04 |
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