CN103072330B - Aluminum alloy sheet for lateral plate of automobile radiator and manufacturing method for aluminum alloy sheet - Google Patents

Aluminum alloy sheet for lateral plate of automobile radiator and manufacturing method for aluminum alloy sheet Download PDF

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CN103072330B
CN103072330B CN201310054834.6A CN201310054834A CN103072330B CN 103072330 B CN103072330 B CN 103072330B CN 201310054834 A CN201310054834 A CN 201310054834A CN 103072330 B CN103072330 B CN 103072330B
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layer
melting
aluminum alloy
smelting
skim
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CN103072330A (en
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曹亮
俞新峰
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NANTONG HENGJIN COMPOSITE MATERIALS CO., LTD.
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NANTONG HENGXIU ALUMINUM HEAT TRANSFER MATERIAL CO Ltd
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Abstract

The invention discloses an aluminum alloy sheet for a lateral plate of an automobile radiator and a manufacturing method for the aluminum alloy sheet. The aluminum alloy sheet for the lateral plate of the automobile radiator is characterized by comprising a natural aging layer, heat transfer layers, a brazing layer and an anticorrosive coating, wherein the brazing layer and the anticorrosive coating are respectively arranged on two sides of the natural aging layer; one heat transfer layer is arranged between the brazing layer and the natural aging layer; and the other heat transfer layer is arranged between the anticorrosive coating and the natural aging layer. The manufacturing method for the lateral plate of the automobile radiator comprises the steps of a smelting step, a saw cutting step, a face milling step, a hot rolling step, a welding step, a heating step, a hot rolling step, a cold rolling step, an annealing step of a finished product and a crosscut shearing step. The manufacturing method is characterized in that the smelting step comprises steps of smelting the natural aging layer, smelting the heat transfer layers, smelting the brazing layer and smelting the anticorrosive coating. The aluminum alloy sheet and the manufacturing method disclosed by the invention have the advantages that the strength of materials is gradually enhanced in air after the materials are processed, so that the strength of the lateral plate of the finished product of the radiator is improved, the thickness of the lateral plate is reduced, and the aims of reducing production cost of the automobile, saving energy and reducing emission are achieved.

Description

A kind of automobile heat radiator lateral plate aluminum alloy plate materials and manufacture method thereof
Technical field
The present invention relates to Al alloy composite, particularly relate to a kind of automobile heat radiator lateral plate aluminum alloy plate materials.
The invention still further relates to a kind of manufacture method of automobile heat radiator lateral plate aluminum alloy plate materials.
Background technology
The side plate materials demand intensity of current automobile radiators is more high better, but the aluminum alloy plate materials following process of high strength is complicated, easily produces the defects such as cracking.So soft state can only be selected to improve sheet metal thickness to ensure the robustness of radiator side plate.Along with the continuous decline of vehicle price and the lightweight demand of energy-saving and emission-reduction, automobile radiators producer exigence is a kind of to be convenient to process and the higher ultrathin side plate of product intensity.
Therefore, the technology being badly in need of a kind of improvement solves this problem existing in prior art.
Summary of the invention
The object of this invention is to provide a kind of both easy to process and after machine-shaping, improve constantly the automobile heat radiator lateral plate aluminum alloy plate materials of its intensity.
Another object of the present invention is to provide a kind of manufacture method of automobile heat radiator lateral plate aluminum alloy plate materials
The technical solution used in the present invention is:
A kind of automobile heat radiator lateral plate aluminum alloy plate materials, it is characterized in that: comprise natrual ageing layer, heat conduction layer, brazing layer and anticorrosive coat, described brazing layer and anticorrosive coat are located at natrual ageing layer both sides respectively, heat conduction layer is provided with between described brazing layer and natrual ageing layer, heat conduction layer is provided with between described anticorrosive coat and natrual ageing layer
Natrual ageing layer is made up of the material of following weight percents: Si:0.60 ~ 0.70, Fe:0.25 ~ 0.35, Cu:0.20 ~ 0.30, Mn :≤0.10, Mg:0.35 ~ 0.50, Zn :≤0.10, Ti:0.13 ~ 0.18, remaining single impurity≤0.05, total impurities≤0.15, surplus is aluminium
Brazing layer is made up of the material of following weight percents: Si:7.6 ~ 8.05, Fe :≤0.20, Cu :≤0.01, Mn :≤0.10, Mg :≤0.05, Zn :≤0.10, remaining single impurity≤0.05, total impurities≤0.15, and surplus is aluminium,
Anticorrosive coat is made up of the material of following weight percents: Si:0.1 ~ 0.3, Fe:0.20 ~ 0.30, Cu :≤0.07, Mn :≤0.01, Mg :≤0.05, Zn:0.9 ~ 1.2, remaining single impurity≤0.05, total impurities≤0.15, and surplus is aluminium,
Heat conduction layer is made up of the material of following weight percents: Si:0.15 ~ 0.25, Fe:0.35 ~ 0.50, Cu:0.08 ~ 0.15, Mn:1.1 ~ 1.2, Mg :≤0.03, Zn :≤0.10, Ti :≤0.03, remaining single impurity≤0.05, total impurities≤0.15, surplus is aluminium.
The Thickness Ratio of described brazing layer, heat conduction layer, natrual ageing layer, heat conduction layer, anticorrosive coat is 2:1:14:1:2.
A kind of manufacture method of automobile heat radiator lateral plate aluminum alloy plate materials, comprise melting, sawing, milling face, hot rolling, welding, heating, hot rolling, cold rolling, finished products and horizontally cut step, it is characterized in that: melting comprises melting natrual ageing layer, smelting heat conducting shell, melting brazing layer and melting anticorrosive coat
Described melting natrual ageing layer comprises the following steps: the industrial aluminium ingot of remelting is added smelting furnace fusing, skim, sample analysis, then leave standstill after adding the material according to above-mentioned percentage by weight, stirring, injection refining, import standing furnace after adjusting component of skimming, add that the agent of titanium boron is stirred again, refining, to skim, through online Metamorphism treatment, degasification, filter, enter casting machine and carry out being cast as ingot casting
Described melting brazing layer comprises the following steps: the industrial aluminium ingot of remelting is added smelting furnace fusing, skim, sample analysis, then leave standstill after adding the material according to above-mentioned percentage by weight, stirring, injection refining, import standing furnace after adjusting component of skimming, add strontium salt alterant and carry out modifying-refining process, stirring, refining again, to skim, through degasification, filter, enter casting machine and carry out being cast as ingot casting
Described melting anticorrosive coat comprises the following steps: the industrial aluminium ingot of remelting is added smelting furnace fusing, skim, sample analysis, then leave standstill after adding the material according to above-mentioned percentage by weight, stirring, injection refining, import standing furnace after adjusting component of skimming, add titanium boron agent alterant and carry out modifying-refining process, stirring, refining again, to skim, through degasification, filter, enter casting machine and carry out being cast as ingot casting
Described smelting heat conducting shell comprises the following steps: the industrial aluminium ingot of remelting is added smelting furnace fusing, skim, sample analysis, then leave standstill after adding the material according to above-mentioned percentage by weight, stirring, injection refining, import standing furnace after adjusting component of skimming, add that the agent of titanium boron is stirred again, refining, to skim, through online Metamorphism treatment, degasification, filter, enter casting machine and carry out being cast as ingot casting.
The smelting temperature 730 ~ 760 DEG C of described melting natrual ageing layer, the speed entered in casting machine is 25 ~ 40mm/min.
The smelting temperature of described melting brazing layer 740 ~ 760 DEG C, the speed entered in casting machine is 30 ~ 50mm/min.
The smelting temperature of described melting anticorrosive coat 730 ~ 760 DEG C, the speed entered in casting machine is 30 ~ 50mm/min.
The smelting temperature of described smelting heat conducting shell 730 ~ 760 DEG C, the speed entered in casting machine is 25 ~ 40mm/min.
Advantage of the present invention is: material can be gained in strength after processing in atmosphere gradually, improves the side plate intensity of radiator finished product and thickness thinning, reaches the object reducing automobile production cost and energy-saving and emission-reduction.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Fig. 1 is structural representation of the present invention.
Wherein: 1, natrual ageing layer, 2, heat conduction layer, 3, brazing layer, 4, anticorrosive coat.
Detailed description of the invention
Embodiment 1
As shown in Figure 1, a kind of automobile heat radiator lateral plate aluminum alloy plate materials of the present invention, comprise natrual ageing layer 1, heat conduction layer 2, brazing layer 3 and anticorrosive coat 4, described brazing layer 3 and anticorrosive coat 4 are located at natrual ageing layer 1 both sides respectively, heat conduction layer 2 is provided with between described brazing layer 3 and natrual ageing layer 1, heat conduction layer 2 is provided with between described anticorrosive coat 4 and natrual ageing layer 1, natrual ageing layer 1 is made up of the material of following weight percents: Si:0.60, Fe:0.25, Cu:0.20, Mn:0.05, Mg:0.35, Zn:0.30, Ti:0.13, remaining single impurity 0.03, total impurities 0.15, surplus is aluminium, brazing layer 3 is made up of the material of following weight percents: Si:7.6, Fe:0.10, Cu:0.004, Mn:0.03, Mg:0.01, Zn:0.05, remaining single impurity 0.03, total impurities 0.15, and surplus is aluminium, anticorrosive coat 4 is made up of the material of following weight percents: Si:0.1, Fe:0.20, Cu:0.07, Mn:0.004, Mg:0.04, Zn:0.9, remaining single impurity 0.03, total impurities 0.15, and surplus is aluminium, heat conduction layer 2 is made up of the material of following weight percents: Si:0.15, Fe:0.35, Cu:0.08, Mn:1.1, Mg:0.01, Zn:0.04, Ti:0.02, remaining single impurity 0.03, total impurities 0.15, surplus is aluminium, and the Thickness Ratio of described brazing layer 3, heat conduction layer 2, natrual ageing layer 1, heat conduction layer 2, anticorrosive coat 4 is 2:1:14:1:2.
A manufacture method for automobile heat radiator lateral plate aluminum alloy plate materials, comprises the steps:
(1) melting:
Melting comprises melting natrual ageing layer 1, smelting heat conducting shell 2, melting brazing layer 3 and melting anticorrosive coat 4, described melting natrual ageing layer 1 comprises the following steps: the industrial aluminium ingot of remelting is added smelting furnace fusing, smelting temperature 730 DEG C, skim, sample analysis, then leave standstill after adding the material according to above-mentioned percentage by weight, stir, injection refining, skim after adjusting component and import standing furnace, add the agent of titanium boron again to stir, refining, skim, through online Metamorphism treatment, degasification, filter, enter casting machine to carry out being cast as ingot casting with the speed of 25mm/min, natrual ageing layer after brazing its strength of materials of prolongation in time is also constantly becoming large, described melting brazing layer 3 comprises the following steps: the industrial aluminium ingot of remelting is added smelting furnace fusing, smelting temperature 740 DEG C, skim, sample analysis, then leave standstill after adding the material according to above-mentioned percentage by weight, stir, injection refining, skim after adjusting component and import standing furnace, add strontium salt alterant and carry out modifying-refining process, again stir, refining, skim, through degasification, filter, enter casting machine to carry out being cast as ingot casting with the speed of 30mm/min, brazing layer 3 melts in the soldering oven of 600 DEG C, bond with fin material the effect played and weld after cooling, described melting anticorrosive coat 4 comprises the following steps: the industrial aluminium ingot of remelting is added smelting furnace fusing, smelting temperature 730 DEG C, skim, sample analysis, then leave standstill after adding the material according to above-mentioned percentage by weight, stir, injection refining, skim after adjusting component and import standing furnace, add titanium boron agent alterant and carry out modifying-refining process, again stir, refining, skim, through degasification, filter, enter casting machine to carry out being cast as ingot casting with the speed of 30mm/min, corrosion-resistant coating utilizes electrode potential principle, zinc ion protection core in preferential corrosion anticorrosive coat is to reach the object extending radiator service life, described smelting heat conducting shell 2 comprises the following steps: the industrial aluminium ingot of remelting is added smelting furnace fusing, smelting temperature 730 DEG C, skim, sample analysis, then leave standstill after adding the material according to above-mentioned percentage by weight, stir, injection refining, skim after adjusting component and import standing furnace, add the agent of titanium boron again to stir, refining, skim, through online Metamorphism treatment, degasification, filter, enter casting machine to carry out being cast as ingot casting with the speed of 25mm/min, heat conduction layer 2 mainly strengthens the coefficient of heat conduction of radiator, the silicon ion of brazing layer 3 pairs of natrual ageing layers is avoided to permeate,
(2) sawing: the defect bottom the anticorrosive coat 4 of the heat conduction layer 2 of the natrual ageing layer 1 of melting, melting, the brazing layer 3 of melting and melting is amputated;
(3) milling face: by the heat conduction layer ingot casting of sawing, natrual ageing layer ingot casting, brazing layer ingot casting and each mill off 10mm in anticorrosive coat ingot casting two sides;
(4) hot rolling: by the brazing layer ingot casting of complete for milling, anticorrosive coat ingot casting, heat conduction layer ingot casting, is heated to 480 DEG C and is placed on rolling respectively on two roller hot-rolling mills;
(5) weld: after the material cooled after rolling, polish off blemish with wire brush respectively with the natrual ageing layer ingot casting behind milling face, natrual ageing layer ingot casting two sides is covered with skin material and welds with argon arc solder flux on forcing press.
(6) heat: the heating furnace inside holding 11 hours composite ingot welded being placed on 500 DEG C;
(7) hot rolling: the composite ingot heated is rolled into the coils of hot rolled that thickness is 5mm on two roller hot-rolling mills, and control finishing temperature 300 DEG C;
(8) cold rolling: after cooling, by hot rolled coil by 25% cold processing ratio on 4-roller cold rolling mill, be rolled into the cold rolling coiled material that thickness is 1.0mm;
(9) finished products: the cold rolling coiled material of cooling is placed in annealing furnace and carries out intermediate annealing, annealing temperature 300 DEG C × 3h → 550 DEG C × 4h → 380 DEG C × 2h;
(10) horizontally to cut: the sheet material coiled material after annealing being cut into 1.0*1000*2000, namely obtains aluminum alloy composite board of the present invention.
Improve the side plate intensity of radiator finished product and thickness thinning, reach the object reducing automobile production cost and energy-saving and emission-reduction.
Embodiment 2
As shown in Figure 1, a kind of automobile heat radiator lateral plate aluminum alloy plate materials of the present invention, comprise natrual ageing layer 1, heat conduction layer 2, brazing layer 3 and anticorrosive coat 4, described brazing layer 3 and anticorrosive coat 4 are located at natrual ageing layer 1 both sides respectively, heat conduction layer 2 is provided with between described brazing layer 3 and natrual ageing layer 1, heat conduction layer 2 is provided with between described anticorrosive coat 4 and natrual ageing layer 1, natrual ageing layer 1 is made up of the material of following weight percents: Si:0.65, Fe:0.30, Cu:0.25, Mn:0.08, Mg:0.40, Zn:0.08, Ti:0.153, remaining single impurity 0.02, total impurities 0.14, surplus is aluminium, brazing layer 3 is made up of the material of following weight percents: Si:7.9, Fe:0.18, Cu:0.009, Mn:0.10, Mg:0.04, Zn:0.09, remaining single impurity 0.02, total impurities 0.14, and surplus is aluminium, anticorrosive coat 4 is made up of the material of following weight percents: Si:0.2, Fe:0.25, Cu:0.065, Mn:0.0085, Mg:0.045, Zn:1.05, remaining single impurity 0.02, total impurities 0.14, and surplus is aluminium, heat conduction layer 2 is made up of the material of following weight percents: Si:0.20, Fe:0.45, Cu:0.12, Mn:1.15, Mg:0.025, Zn:0.075, Ti:0.028, remaining single impurity 0.02, total impurities 0.14, surplus is aluminium, and the Thickness Ratio of described brazing layer 3, heat conduction layer 2, natrual ageing layer 1, heat conduction layer 2, anticorrosive coat 4 is 2:1:14:1:2.
A manufacture method for automobile heat radiator lateral plate aluminum alloy plate materials, comprises the steps:
(1) melting:
Melting comprises melting natrual ageing layer 1, smelting heat conducting shell 2, melting brazing layer 3 and melting anticorrosive coat 4, described melting natrual ageing layer 1 comprises the following steps: the industrial aluminium ingot of remelting is added smelting furnace fusing, smelting temperature 740 DEG C, skim, sample analysis, then leave standstill after adding the material according to above-mentioned percentage by weight, stir, injection refining, skim after adjusting component and import standing furnace, add the agent of titanium boron again to stir, refining, skim, through online Metamorphism treatment, degasification, filter, enter casting machine to carry out being cast as ingot casting with the speed of 35mm/min, natrual ageing layer after brazing its strength of materials of prolongation in time is also constantly becoming large, described melting brazing layer 3 comprises the following steps: the industrial aluminium ingot of remelting is added smelting furnace fusing, smelting temperature 750 DEG C, skim, sample analysis, then leave standstill after adding the material according to above-mentioned percentage by weight, stir, injection refining, skim after adjusting component and import standing furnace, add strontium salt alterant and carry out modifying-refining process, again stir, refining, skim, through degasification, filter, enter casting machine to carry out being cast as ingot casting with the speed of 40mm/min, brazing layer 3 melts in the soldering oven of 610 DEG C, bond with fin material the effect played and weld after cooling, described melting anticorrosive coat 4 comprises the following steps: the industrial aluminium ingot of remelting is added smelting furnace fusing, smelting temperature 750 DEG C, skim, sample analysis, then leave standstill after adding the material according to above-mentioned percentage by weight, stir, injection refining, skim after adjusting component and import standing furnace, add titanium boron agent alterant and carry out modifying-refining process, again stir, refining, skim, through degasification, filter, enter casting machine to carry out being cast as ingot casting with the speed of 40mm/min, corrosion-resistant coating utilizes electrode potential principle, zinc ion protection core in preferential corrosion anticorrosive coat is to reach the object extending radiator service life, described smelting heat conducting shell 2 comprises the following steps: the industrial aluminium ingot of remelting is added smelting furnace fusing, smelting temperature 750 DEG C, skim, sample analysis, then leave standstill after adding the material according to above-mentioned percentage by weight, stir, injection refining, skim after adjusting component and import standing furnace, add the agent of titanium boron again to stir, refining, skim, through online Metamorphism treatment, degasification, filter, enter casting machine to carry out being cast as ingot casting with the speed of 30mm/min, heat conduction layer 2 mainly strengthens the coefficient of heat conduction of radiator, the silicon ion of brazing layer 3 pairs of natrual ageing layers is avoided to permeate,
(2) sawing: the defect bottom the anticorrosive coat 4 of the heat conduction layer 2 of the natrual ageing layer 1 of melting, melting, the brazing layer 3 of melting and melting is amputated;
(3) milling face: by the heat conduction layer ingot casting of sawing, natrual ageing layer ingot casting, brazing layer ingot casting and each mill off 10mm in anticorrosive coat ingot casting two sides;
(4) hot rolling: by the brazing layer ingot casting of complete for milling, anticorrosive coat ingot casting, heat conduction layer ingot casting, is heated to 500 DEG C and is placed on rolling respectively on two roller hot-rolling mills;
(5) weld: after the material cooled after rolling, polish off blemish with wire brush respectively with the natrual ageing layer ingot casting behind milling face, natrual ageing layer ingot casting two sides is covered with skin material and welds with argon arc solder flux on forcing press.
(6) heat: the heating furnace inside holding 12 hours composite ingot welded being placed on 520 DEG C;
(7) hot rolling: the composite ingot heated is rolled into the coils of hot rolled that thickness is 7mm on two roller hot-rolling mills, and control finishing temperature 320 DEG C;
(8) cold rolling: after cooling, by hot rolled coil by 35% cold processing ratio on 4-roller cold rolling mill, be rolled into the cold rolling coiled material that thickness is 1.0mm;
(9) finished products: the cold rolling coiled material of cooling is placed in annealing furnace and carries out intermediate annealing, annealing temperature 300 DEG C × 3h → 550 DEG C × 4h → 380 DEG C × 2h;
(10) horizontally to cut: the sheet material coiled material after annealing being cut into 1.0*1000*2000, namely obtains aluminum alloy composite board of the present invention.
Improve the side plate intensity of radiator finished product and thickness thinning, reach the object reducing automobile production cost and energy-saving and emission-reduction.
Embodiment 3
As shown in Figure 1, a kind of automobile heat radiator lateral plate aluminum alloy plate materials of the present invention, comprise natrual ageing layer 1, heat conduction layer 2, brazing layer 3 and anticorrosive coat 4, described brazing layer 3 and anticorrosive coat 4 are located at natrual ageing layer 1 both sides respectively, heat conduction layer 2 is provided with between described brazing layer 3 and natrual ageing layer 1, heat conduction layer 2 is provided with between described anticorrosive coat 4 and natrual ageing layer 1, natrual ageing layer 1 is made up of the material of following weight percents: Si:0.70, Fe:0.35, Cu:0.30, Mn:0.10, Mg:0.50, Zn:0.10, Ti:0.18, remaining single impurity 0.05, total impurities 0.15, surplus is aluminium, brazing layer 3 is made up of the material of following weight percents: Si:8.05, Fe:0.20, Cu:0.01, Mn:0.10, Mg:0.05, Zn:0.10, remaining single impurity 0.05, total impurities 0.15, and surplus is aluminium, anticorrosive coat 4 is made up of the material of following weight percents: Si:0.3, Fe:0.30, Cu:0.07, Mn:0.01, Mg:0.05, Zn:1.2, remaining single impurity 0.05, total impurities 0.15, and surplus is aluminium, heat conduction layer 2 is made up of the material of following weight percents: Si:0.25, Fe:0.50, Cu:0.15, Mn:1.2, Mg:0.03, Zn:0.10, Ti:0.03, remaining single impurity 0.05, total impurities 0.15, surplus is aluminium, and the Thickness Ratio of described brazing layer 3, heat conduction layer 2, natrual ageing layer 1, heat conduction layer 2, anticorrosive coat 4 is 2:1:14:1:2.
A manufacture method for automobile heat radiator lateral plate aluminum alloy plate materials, comprises the steps:
(1) melting:
Melting comprises melting natrual ageing layer 1, smelting heat conducting shell 2, melting brazing layer 3 and melting anticorrosive coat 4, described melting natrual ageing layer 1 comprises the following steps: the industrial aluminium ingot of remelting is added smelting furnace fusing, smelting temperature 760 DEG C, skim, sample analysis, then leave standstill after adding the material according to above-mentioned percentage by weight, stir, injection refining, skim after adjusting component and import standing furnace, add the agent of titanium boron again to stir, refining, skim, through online Metamorphism treatment, degasification, filter, enter casting machine to carry out being cast as ingot casting with the speed of 40mm/min, natrual ageing layer after brazing its strength of materials of prolongation in time is also constantly becoming large, described melting brazing layer 3 comprises the following steps: the industrial aluminium ingot of remelting is added smelting furnace fusing, smelting temperature 760 DEG C, skim, sample analysis, then leave standstill after adding the material according to above-mentioned percentage by weight, stir, injection refining, skim after adjusting component and import standing furnace, add strontium salt alterant and carry out modifying-refining process, again stir, refining, skim, through degasification, filter, enter casting machine to carry out being cast as ingot casting with the speed of 50mm/min, brazing layer 3 melts in the soldering oven of 630 DEG C, bond with fin material the effect played and weld after cooling, described melting anticorrosive coat 4 comprises the following steps: the industrial aluminium ingot of remelting is added smelting furnace fusing, smelting temperature 760 DEG C, skim, sample analysis, then leave standstill after adding the material according to above-mentioned percentage by weight, stir, injection refining, skim after adjusting component and import standing furnace, add titanium boron agent alterant and carry out modifying-refining process, again stir, refining, skim, through degasification, filter, enter casting machine to carry out being cast as ingot casting with the speed of 50mm/min, corrosion-resistant coating utilizes electrode potential principle, zinc ion protection core in preferential corrosion anticorrosive coat is to reach the object extending radiator service life, described smelting heat conducting shell 2 comprises the following steps: the industrial aluminium ingot of remelting is added smelting furnace fusing, smelting temperature 760 DEG C, skim, sample analysis, then leave standstill after adding the material according to above-mentioned percentage by weight, stir, injection refining, skim after adjusting component and import standing furnace, add the agent of titanium boron again to stir, refining, skim, through online Metamorphism treatment, degasification, filter, enter casting machine to carry out being cast as ingot casting with the speed of 40mm/min, heat conduction layer 2 mainly strengthens the coefficient of heat conduction of radiator, the silicon ion of brazing layer 3 pairs of natrual ageing layers is avoided to permeate,
(2) sawing: the defect bottom the anticorrosive coat 4 of the heat conduction layer 2 of the natrual ageing layer 1 of melting, melting, the brazing layer 3 of melting and melting is amputated;
(3) milling face: by the heat conduction layer ingot casting of sawing, natrual ageing layer ingot casting, brazing layer ingot casting and each mill off 10mm in anticorrosive coat ingot casting two sides;
(4) hot rolling: by the brazing layer ingot casting of complete for milling, anticorrosive coat ingot casting, heat conduction layer ingot casting, is heated to 530 DEG C and is placed on rolling respectively on two roller hot-rolling mills;
(5) weld: after the material cooled after rolling, polish off blemish with wire brush respectively with the natrual ageing layer ingot casting behind milling face, natrual ageing layer ingot casting two sides is covered with skin material and welds with argon arc solder flux on forcing press.
(6) heat: the heating furnace inside holding 11 hours composite ingot welded being placed on 540 DEG C;
(7) hot rolling: the composite ingot heated is rolled into the coils of hot rolled that thickness is 8mm on two roller hot-rolling mills, and control finishing temperature 350 DEG C;
(8) cold rolling: after cooling, by hot rolled coil by 25 ~ 40% cold processing ratio on 4-roller cold rolling mill, be rolled into the cold rolling coiled material that thickness is 1.0mm;
(9) finished products: the cold rolling coiled material of cooling is placed in annealing furnace and carries out intermediate annealing, annealing temperature 300 DEG C × 3h → 550 DEG C × 4h → 380 DEG C × 2h;
(10) horizontally to cut: the sheet material coiled material after annealing being cut into 1.0*1000*2000, namely obtains aluminum alloy composite board of the present invention.
Material can be gained in strength after processing in atmosphere gradually, improves the side plate intensity of radiator finished product and thickness thinning, reaches the object reducing automobile production cost and energy-saving and emission-reduction.

Claims (7)

1. an automobile heat radiator lateral plate aluminum alloy plate materials, it is characterized in that: comprise natrual ageing layer, heat conduction layer, brazing layer and anticorrosive coat, described brazing layer and anticorrosive coat are located at natrual ageing layer both sides respectively, heat conduction layer is provided with between described brazing layer and natrual ageing layer, heat conduction layer is provided with between described anticorrosive coat and natrual ageing layer
Natrual ageing layer is made up of the material of following weight percents: Si:0.60 ~ 0.70, Fe:0.25 ~ 0.35, Cu:0.20 ~ 0.30, Mn :≤0.10, Mg:0.35 ~ 0.50, Zn :≤0.10, Ti:0.13 ~ 0.18, remaining single impurity≤0.05, total impurities≤0.15, surplus is aluminium
Brazing layer is made up of the material of following weight percents: Si:7.6 ~ 8.05, Fe :≤0.20, Cu :≤0.01, Mn :≤0.10, Mg :≤0.05, Zn :≤0.10, remaining single impurity≤0.05, total impurities≤0.15, and surplus is aluminium,
Anticorrosive coat is made up of the material of following weight percents: Si:0.1 ~ 0.3, Fe:0.20 ~ 0.30, Cu :≤0.07, Mn :≤0.01, Mg :≤0.05, Zn:0.9 ~ 1.2, remaining single impurity≤0.05, total impurities≤0.15, and surplus is aluminium,
Heat conduction layer is made up of the material of following weight percents: Si:0.15 ~ 0.25, Fe:0.35 ~ 0.50, Cu:0.08 ~ 0.15, Mn:1.1 ~ 1.2, Mg :≤0.03, Zn :≤0.10, Ti :≤0.03, remaining single impurity≤0.05, total impurities≤0.15, surplus is aluminium.
2. a kind of automobile heat radiator lateral plate aluminum alloy plate materials according to claim 1, is characterized in that: the Thickness Ratio of described brazing layer, heat conduction layer, natrual ageing layer, heat conduction layer, anticorrosive coat is 2:1:14:1:2.
3. the manufacture method of a kind of automobile heat radiator lateral plate aluminum alloy plate materials according to claim 1, comprise melting, sawing, milling face, hot rolling, welding, heating, hot rolling, cold rolling, finished products and horizontally cut step, it is characterized in that: melting comprises melting natrual ageing layer, smelting heat conducting shell, melting brazing layer and melting anticorrosive coat
Described melting natrual ageing layer comprises the following steps: the industrial aluminium ingot of remelting is added smelting furnace fusing, skim, sample analysis, then leave standstill after adding the material according to above-mentioned percentage by weight, stirring, injection refining, import standing furnace after adjusting component of skimming, add that the agent of titanium boron is stirred again, refining, to skim, through online Metamorphism treatment, degasification, filter, enter casting machine and carry out being cast as ingot casting
Described melting brazing layer comprises the following steps: the industrial aluminium ingot of remelting is added smelting furnace fusing, skim, sample analysis, then leave standstill after adding the material according to above-mentioned percentage by weight, stirring, injection refining, import standing furnace after adjusting component of skimming, add strontium salt alterant and carry out modifying-refining process, stirring, refining again, to skim, through degasification, filter, enter casting machine and carry out being cast as ingot casting
Described melting anticorrosive coat comprises the following steps: the industrial aluminium ingot of remelting is added smelting furnace fusing, skim, sample analysis, then leave standstill after adding the material according to above-mentioned percentage by weight, stirring, injection refining, import standing furnace after adjusting component of skimming, add titanium boron agent alterant and carry out modifying-refining process, stirring, refining again, to skim, through degasification, filter, enter casting machine and carry out being cast as ingot casting
Described smelting heat conducting shell comprises the following steps: the industrial aluminium ingot of remelting is added smelting furnace fusing, skim, sample analysis, then leave standstill after adding the material according to above-mentioned percentage by weight, stirring, injection refining, import standing furnace after adjusting component of skimming, add that the agent of titanium boron is stirred again, refining, to skim, through online Metamorphism treatment, degasification, filter, enter casting machine and carry out being cast as ingot casting.
4. the manufacture method of a kind of automobile heat radiator lateral plate aluminum alloy plate materials according to claim 3, is characterized in that: the smelting temperature 730 ~ 760 DEG C of described melting natrual ageing layer, and the speed entered in casting machine is 25 ~ 40mm/min.
5. the manufacture method of a kind of automobile heat radiator lateral plate aluminum alloy plate materials according to claim 3, is characterized in that: the smelting temperature of described melting brazing layer 740 ~ 760 DEG C, the speed entered in casting machine is 30 ~ 50mm/min.
6. the manufacture method of a kind of automobile heat radiator lateral plate aluminum alloy plate materials according to claim 3, is characterized in that: the smelting temperature of described melting anticorrosive coat 730 ~ 760 DEG C, the speed entered in casting machine is 30 ~ 50mm/min.
7. the manufacture method of a kind of automobile heat radiator lateral plate aluminum alloy plate materials according to claim 3, is characterized in that: the smelting temperature of described smelting heat conducting shell 730 ~ 760 DEG C, the speed entered in casting machine is 25 ~ 40mm/min.
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