CN105478474A - Method for compounding aluminum alloy composite board used for machining automobile oil cooler bottom board - Google Patents
Method for compounding aluminum alloy composite board used for machining automobile oil cooler bottom board Download PDFInfo
- Publication number
- CN105478474A CN105478474A CN201510945126.0A CN201510945126A CN105478474A CN 105478474 A CN105478474 A CN 105478474A CN 201510945126 A CN201510945126 A CN 201510945126A CN 105478474 A CN105478474 A CN 105478474A
- Authority
- CN
- China
- Prior art keywords
- aluminium alloy
- aluminum alloy
- plate materials
- oil cooler
- cast ingot
- 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.)
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Classifications
-
- 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
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
-
- 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
- B21B2001/386—Plates
Abstract
The invention relates to a method for compounding an aluminum alloy composite board used for machining an automobile oil cooler bottom board. A 3003 aluminum alloy board, a 6A02 aluminum alloy cast ingot and a 3003 aluminum alloy board are hot-rolled and compounded according to the thickness proportion of 1:(8-15):1, so that the three-layer aluminum alloy composite board is obtained. By the adoption of the aluminum alloy composite board manufactured through the method, the situation that the welding quality of an oil cooler is affected due to the Mg element in a 6A02 core material of the aluminum alloy composite board in the protective atmosphere brazing process is avoided, protective atmosphere brazing of an oil cooler assembling piece can be smoothly finished, the production efficiency of the oil cooler is greatly improved, and the production cost is reduced.
Description
Technical field
The present invention relates generally to a kind of complex method of aluminium alloy compound plate, particularly relates to a kind of aluminium alloy compound plate complex method for processing automobile oil cooler base plate.
Background technology
Oil cooler is the important spare and accessory parts of automobile body, ensure automobile engine safe operation and the strength member in life-span thereof, its complex structure, nowadays mostly main flow oil cooler market sold, be to adopt the aluminium alloy integral solder structure be formed by connecting with base plate by the offset strip fin of multilayer dense arrangement.Its main production is that soldering is once-forming.Aluminum alloy composite board is lightweight, corrosion resistance and good, braze ability are good, dependable performance, is therefore widely used in automobile cooling system.
Oil cooler is after high temperature brazing furnace brazing, and the seam of each several part component should be firm, and each component at high temperature can not be out of shape, otherwise will produce rosin joint or sealing-off phenomenon, affects the radiating effect of oil cooler.Composite aluminium alloy plates is as the main material of oil cooler base plate, and its physical and mechanical property, chemical composition and welding performance etc. directly affect the quality of oil cooler.
Composite aluminium alloy plates is by brazing material (skin material) and parent metal (core) by certain cladding ratio, through certain combination process lamellar composite together.Combination process is the demand in order to adapt to different materials, makes the material property after compound more excellent, and make every layer of material give full play to its different performance, thus composite has how better performance, and lower cost.
Orthodox car oil cooler base plate is employing 3 line aluminium alloy and modified aluminium alloy sheets thereof, and post braze yield strengths is generally all lower, can not meet the requirement of oil cooler base plate to as deposited strength.In order to meet the requirement of oil cooler base plate to as deposited strength, adopt the 6A02 aluminium alloy plate with certain ageing strengthening at present.After ageing strengthening has referred in solid solution alloying element, under normal temperature or the condition of heating, make to separate out with some form (intermetallic compound and so on) at the alloying element of high temperature solid solution, form the hard particle of Dispersed precipitate, dislocation is cut through and causes resistance, the strength of materials is increased.But 6A02 aluminum alloy plate materials is due to the Mg element containing 0.45-0.9%, and in protective atmosphere brazing process, Mg element can form Mg steam, with the O in body of heater
2, CO
2, N
2generate the product of black at piece surface after reaction, have a strong impact on surface quality of workpieces, and brazing flux is dissolved with certain limit to the MgO of piece surface.In addition, Mg and MgO and brazing flux react and generate MgF
2brazing flux fusing point is raised lose activity; have a strong impact on brazing quality; make 6A02 aluminum alloy plate materials can not adopt protective atmosphere soldering when doing oil cooler base plate; the oil cooler part that vacuum brazing can only be adopted to carry out soldering group install; reduce the production efficiency of oil cooler, and add production cost.
In order to meet the requirement of oil cooler base plate to as deposited strength; 6A02 aluminium alloy plate can be still adopted to carry out processing oil cooler base plate; but solve 6A02 aluminium alloy Mg element in the process of protective atmosphere soldering and form Mg steam and the series of problems that brings, namely how to make 6A02 aluminium alloy plate Mg steam in brazing process can not be spilled over to from alloy in alloy surface or body of heater.
Summary of the invention
For the problems referred to above; the invention provides a kind of aluminium alloy compound plate complex method for processing automobile oil cooler base plate; make oil cooler in protective atmosphere brazing process, welding quality can not be affected because of the Mg element in the core 6A02 of aluminium alloy compound plate.
The invention provides a kind of aluminium alloy compound plate complex method for processing automobile oil cooler base plate, 3003 aluminum alloy plate materials, 6A02 aluminium alloy cast ingot and 3003 aluminum alloy plate materials are according to 1:(8-15): the thickness proportion of 1 carries out compound.
Above-mentioned method, the described 6A02 aluminium alloy cast ingot Homogenization Treatments will cast out before described composite plate compound; 3003 aluminium alloy cast ingots are hot-rolled down to a certain thickness and make described 3003 aluminum alloy plate materials.
Further, by described 6A02 aluminium alloy cast ingot through 530 DEG C of heating, 12 hours insulation Homogenization Treatments.
Above-mentioned method, before 3003 aluminium alloy cast ingots are hot-rolled down to a certain thickness, described 3003 aluminium alloy cast ingots are come out of the stove after being heated to 450-550 DEG C, being incubated 7-9 hour.
Above-mentioned method, compound tense carries out method hot rolling described 3003 aluminum alloy plate materials, 6A02 aluminium alloy cast ingot and 3003 aluminum alloy plate materials, forms three layers of aluminium alloy compound plate of epithelium material 3003 aluminium alloy, core 6A02 aluminium alloy and hypodermis material 3003 aluminium alloy.
Further, described 3003 aluminum alloy plate materials, 6A02 aluminium alloy cast ingot and 3003 aluminum alloy plate materials carry out method hot rolling after being heated to 450-550 DEG C, being incubated 7-9 hour.
Above-mentioned method, described 3003 aluminum alloy plate materials, 6A02 aluminium alloy cast ingot and 3003 aluminum alloy plate materials method hot rolling are thick to 6-8mm.
Above-mentioned method, carries out cold rolling, is cold-rolled to required composite plate thickness after described 3003 aluminum alloy plate materials, 6A02 aluminium alloy cast ingot and 3003 aluminum alloy plate materials method hot rolling.
Above-mentioned method, carries out finished products after the composite plate that described 3003 aluminum alloy plate materials, 6A02 aluminium alloy cast ingot and 3003 aluminum alloy plate materials are formed is cold rolling again.
Above-mentioned method, the tensile strength of three layers of aluminium alloy compound plate of described formation epithelium material 3003 aluminium alloy, core 6A02 aluminium alloy and hypodermis material 3003 aluminium alloy is 95-150MPa, and yield strength is not less than 85MPa, and percentage elongation is not less than 20%; This kind three layers of aluminium alloy compound plate are greater than 120MPa through post-brazing tensile strength, and yield strength is greater than 50MPa, and percentage elongation is not less than 20%.
Adopt technical solutions according to the invention; make oil cooler in protective atmosphere brazing process; after Mg element in aluminium alloy compound board core material 6A02 becomes Mg steam; blocked by skin material 3003 aluminium alloy of upper and lower surface; piece surface can not be evaporated into; make Mg steam can not react with other gases in body of heater like this, also can not react with the brazing flux of piece surface, thus oil cooler assembly can be made to complete protective atmosphere soldering smoothly.And adopt protective atmosphere soldering to greatly improve the production efficiency of oil cooler, reduce production cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of the aluminium alloy compound plate for processing automobile oil cooler base plate;
Fig. 2 is the flow chart of the aluminium alloy compound plate for processing automobile oil cooler base plate.
Detailed description of the invention
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in more details, the advantage of the solution of the present invention and various aspects can be understood better.But detailed description of the invention described below and embodiment are only the objects illustrated, instead of limitation of the present invention.
Fig. 1 is the structural representation of the aluminium alloy compound plate for processing automobile oil cooler base plate according to the embodiment of the present invention.The invention provides the complex method of this kind of aluminium alloy compound plate, below in conjunction with the flow chart of the aluminium alloy compound plate for processing automobile oil cooler base plate of Fig. 2, substep is set forth the method.
As shown in Figure 2, first by 6A02 aluminium alloy cast ingot Homogenization Treatments, surface treatment.The 6A02 aluminium alloy cast ingot cast out is through 530 DEG C of heating, 12 hours insulation Homogenization Treatments, carry out the surface treatments such as sawing, milling face with 3003 aluminium alloy cast ingots again.The object of homogenising alleviates casting stress, improves cast sturcture, alleviate or eliminate component segregation.And the final utilization performance of alloy product after homogenising is better than the alloy without homogenising.
Then, 3003 aluminium alloy cast ingots are hot-rolled down to a certain thickness and make 3003 aluminum alloy plate materials.Described 3003 aluminium alloy cast ingots are come out of the stove and are hot-rolled down to a certain thickness after being heated to 450-550 DEG C, being incubated 7-9 hour.Preferably be heated to 500 DEG C, be incubated 8 hours.The thickness of hot rolling should meet with 6A02 aluminium alloy cast ingot milling face after the ratio 1:(8-15 of thickness), preferred 2:21.Again 3003 aluminium alloy slittings after hot rolling are become 3003 aluminum alloy plate materials, after cooling, one side brushing removes surface oxide layer.
Subsequently, by described 3003 aluminum alloy plate materials, 6A02 aluminium alloy cast ingot and 3003 aluminum alloy plate materials method hot rolling.Described 3003 aluminum alloy plate materials, 6A02 aluminium alloy cast ingot and 3003 aluminum alloy plate materials stack neatly, and wherein 6A02 aluminium alloy is intermediate layer, and 3003 aluminium alloys are respectively the upper and lower, method hot rolling of coming out of the stove after being heated to 450-550 DEG C, being incubated 7-9 hour.Preferably be heated to 500 DEG C, be incubated 8 hours.
Further, by described 3003 aluminum alloy plate materials, 6A02 aluminium alloy cast ingot and 3003 aluminum alloy plate materials method hot rolling to 6-8mm, preferred 7.0mm is thick.
Subsequently, cold rolling by carrying out after described 3003 aluminum alloy plate materials, 6A02 aluminium alloy cast ingot and 3003 aluminum alloy plate materials method hot rolling, then be cold-rolled to the composite plate thickness needed for client.
Finally, the composite plate that described 3003 aluminum alloy plate materials, 6A02 aluminium alloy cast ingot and 3003 aluminum alloy plate materials are formed carries out finished products again.Its objective is the mechanical property and surface quality that control composite board, make it the instructions for use meeting technical standard and user.
Certainly, step in above-mentioned steps before hot rolling is not steps necessary, depending on the state of the 6A02 aluminium alloy needed for compound, 3003 aluminium alloys, the aluminium alloy plate of required state directly can be taken from, and need not the from the beginning operation such as homogenising, surface treatment or heat treatment step by step.
The tensile strength that such scheme forms three layers of aluminium alloy compound plate of epithelium material 3003 aluminium alloy, core 6A02 aluminium alloy and hypodermis material 3003 aluminium alloy is 95-150MPa, and yield strength is not less than 85MPa, and percentage elongation is not less than 20%.This kind three layers of aluminium alloy compound plate are greater than 120MPa through post-brazing tensile strength, and yield strength is greater than 50MPa, and percentage elongation is not less than 20%.
Adopt the aluminium alloy compound plate for processing automobile oil cooler base plate that the solution of the present invention obtains; after making the Mg element in protective atmosphere brazing process in core 6A02 aluminium alloy 2 become Mg steam; blocked by epithelium material 3003 aluminium alloy 1 of upper and lower surface and hypodermis material 3003 aluminium alloy 3; piece surface can not be evaporated into; so just make Mg steam can not react with other gases in body of heater; also can not react with the brazing flux of piece surface, oil cooler assembly can be made to complete protective atmosphere soldering smoothly.
Last it is noted that obviously, above-described embodiment is only for example of the present invention is clearly described, and the restriction not to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all embodiments.And thus the apparent change of amplifying out or variation be still among protection scope of the present invention.
Claims (10)
1. for an aluminium alloy compound plate complex method for processing automobile oil cooler base plate, it is characterized in that, 3003 aluminum alloy plate materials, 6A02 aluminium alloy cast ingot and 3003 aluminum alloy plate materials are according to 1:(8-15): the thickness proportion of 1 carries out compound.
2. the method for claim 1, is characterized in that, the described 6A02 aluminium alloy cast ingot Homogenization Treatments will cast out before described composite plate compound; 3003 aluminium alloy cast ingots are hot-rolled down to a certain thickness and make described 3003 aluminum alloy plate materials.
3. method as claimed in claim 2, is characterized in that, by described 6A02 aluminium alloy cast ingot through 530 DEG C of heating, 12 hours insulation Homogenization Treatments.
4. method as claimed in claim 1 or 2, is characterized in that, before being hot-rolled down to a certain thickness, described 3003 aluminium alloy cast ingots are come out of the stove after being heated to 450-550 DEG C, being incubated 7-9 hour.
5. the method for claim 1, it is characterized in that, compound tense carries out method hot rolling described 3003 aluminum alloy plate materials, 6A02 aluminium alloy cast ingot and 3003 aluminum alloy plate materials, forms three layers of aluminium alloy compound plate of epithelium material 3003 aluminium alloy, core 6A02 aluminium alloy and hypodermis material 3003 aluminium alloy.
6. the method for claim 1, is characterized in that, described 3003 aluminum alloy plate materials, 6A02 aluminium alloy cast ingot and 3003 aluminum alloy plate materials carry out method hot rolling after being heated to 450-550 DEG C, being incubated 7-9 hour.
7. method as claimed in claim 6, it is characterized in that, described 3003 aluminum alloy plate materials, 6A02 aluminium alloy cast ingot and 3003 aluminum alloy plate materials method hot rolling are thick to 6-8mm.
8. method as claimed in claim 7, is characterized in that, carry out cold rolling, be cold-rolled to required composite plate thickness after described 3003 aluminum alloy plate materials, 6A02 aluminium alloy cast ingot and 3003 aluminum alloy plate materials method hot rolling.
9. method as claimed in claim 8, is characterized in that, carries out finished products again after the composite plate that described 3003 aluminum alloy plate materials, 6A02 aluminium alloy cast ingot and 3003 aluminum alloy plate materials are formed is cold rolling.
10. method as claimed in claim 9, it is characterized in that, the tensile strength of three layers of aluminium alloy compound plate of described formation epithelium material 3003 aluminium alloy, core 6A02 aluminium alloy and hypodermis material 3003 aluminium alloy is 95-150MPa, and yield strength is not less than 85MPa, and percentage elongation is not less than 20%; This kind three layers of aluminium alloy compound plate are greater than 120MPa through post-brazing tensile strength, and yield strength is greater than 50MPa, and percentage elongation is not less than 20%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510945126.0A CN105478474A (en) | 2015-12-16 | 2015-12-16 | Method for compounding aluminum alloy composite board used for machining automobile oil cooler bottom board |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510945126.0A CN105478474A (en) | 2015-12-16 | 2015-12-16 | Method for compounding aluminum alloy composite board used for machining automobile oil cooler bottom board |
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| CN105478474A true CN105478474A (en) | 2016-04-13 |
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| CN201510945126.0A Pending CN105478474A (en) | 2015-12-16 | 2015-12-16 | Method for compounding aluminum alloy composite board used for machining automobile oil cooler bottom board |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106335247A (en) * | 2016-08-24 | 2017-01-18 | 银邦金属复合材料股份有限公司 | Aluminum honeycomb structure plate for carrier gas soldering, and production method thereof |
| CN106563704A (en) * | 2016-11-04 | 2017-04-19 | 银邦金属复合材料股份有限公司 | Aluminum alloy plate for brazing, manufactured composite plate and preparation method |
| CN108580555A (en) * | 2018-05-11 | 2018-09-28 | 中冶南方工程技术有限公司 | A kind of composite strip production method and production system |
| CN109082567A (en) * | 2018-09-26 | 2018-12-25 | 银邦金属复合材料股份有限公司 | A kind of preparation method of aluminum alloy composite board |
| CN111906143A (en) * | 2020-06-22 | 2020-11-10 | 银邦金属复合材料股份有限公司 | Brazing aluminum alloy composite material and preparation method thereof |
| CN112872032A (en) * | 2020-12-09 | 2021-06-01 | 银邦金属复合材料股份有限公司 | Vacuum brazing oil cooler bottom plate material and preparation method thereof |
| CN113897523A (en) * | 2021-10-15 | 2022-01-07 | 华峰铝业有限公司 | High-strength aluminum alloy composite plate capable of being brazed and preparation method and application thereof |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106335247A (en) * | 2016-08-24 | 2017-01-18 | 银邦金属复合材料股份有限公司 | Aluminum honeycomb structure plate for carrier gas soldering, and production method thereof |
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| CN109082567B (en) * | 2018-09-26 | 2020-04-24 | 银邦金属复合材料股份有限公司 | Preparation method of aluminum alloy composite board |
| CN111906143A (en) * | 2020-06-22 | 2020-11-10 | 银邦金属复合材料股份有限公司 | Brazing aluminum alloy composite material and preparation method thereof |
| CN112872032A (en) * | 2020-12-09 | 2021-06-01 | 银邦金属复合材料股份有限公司 | Vacuum brazing oil cooler bottom plate material and preparation method thereof |
| CN113897523A (en) * | 2021-10-15 | 2022-01-07 | 华峰铝业有限公司 | High-strength aluminum alloy composite plate capable of being brazed and preparation method and application thereof |
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Application publication date: 20160413 |