CN113755723B - Copper-clad aluminum substrate material - Google Patents
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- CN113755723B CN113755723B CN202111001566.2A CN202111001566A CN113755723B CN 113755723 B CN113755723 B CN 113755723B CN 202111001566 A CN202111001566 A CN 202111001566A CN 113755723 B CN113755723 B CN 113755723B
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- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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- C22C21/00—Alloys based on aluminium
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- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0081—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for slabs; for billets
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- 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
- C22F1/043—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 of alloys with silicon as the next major constituent
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Abstract
The invention discloses a copper-clad aluminum substrate material and a preparation method thereof, wherein the material is a 4-series aluminum alloy which comprises the following components in percentage by weight: si: 13 to 16 percent; fe: 0.6-1.2%; ni: 0.5 to 1.0 percent, less than or equal to 0.1 percent of other impurity elements and the balance of Al. The invention has the following beneficial effects: the 4-series copper-clad aluminum substrate material designed by the invention replaces the traditional 5052 material, and the linear expansion coefficient of the material is reduced. The tensile strength of the material is 140-160MPa, the yield strength is more than or equal to 125MPa, the elongation is more than or equal to 5 percent, the material can not be obviously distorted and deformed due to the change of temperature in use, and the service life of the product is greatly prolonged.
Description
The application is a divisional application with application date of 2019, 07, 11 and application number of CN202010053261.5, and the name of the invention is 'a novel copper-clad aluminum substrate material'.
Technical Field
The invention relates to the technical field of copper-clad aluminum substrate materials applied to LED lamps and the microelectronic industry, in particular to a copper-clad aluminum substrate material.
Background
At present, most copper-clad aluminum substrates are 5052 materials, replace the prior stainless steel substrates, have high strength, good plasticity and light weight, meet the development requirement of modern lightweight, but have high linear expansion coefficient, and can deform and distort due to temperature change in the using process to influence the service performance of the whole product.
Disclosure of Invention
In order to solve the problems, the invention discloses a copper-clad aluminum substrate material which comprises the following components in percentage by weight: si: 10.15 percent; fe: 0.62 percent; ni: 0.53 percent, less than or equal to 0.1 percent of other impurity elements and the balance of Al;
the tensile strength of the copper-clad aluminum substrate material is 143MPa, the yield strength is 132MPa, and the elongation is 5%.
The preparation method of the copper-clad aluminum substrate material in the technical scheme comprises the following steps:
1) smelting of the alloy: according to Si: 10 percent; fe: 0.6 percent; ni: 0.5 percent, less than or equal to 0.1 percent of other impurity elements and the balance of Al, adding an industrial aluminum ingot for remelting into a flame reflection furnace for melting, slagging off, sampling and analyzing, determining the weight of an alloy additive added with Si, Fe and Ni according to an analysis result, then leading molten aluminum into the standing furnace after standing, stirring, refining and slagging off, adding an aluminum-silicon alloy modifier for modification and refinement, stirring again, refining and slagging off, degassing and filtering, and feeding into a casting machine for casting at the speed of 43mm/min to form a cast ingot;
2) sawing the alloy cast ingot: sawing off defects at the bottom and the top of the cast ingot;
3) milling the surface of the alloy cast ingot: milling segregation layers and oxide skins generated on the upper surface and the lower surface of the cast ingot;
4) heating: placing the alloy ingot in a heating furnace, reducing the furnace gas temperature to 505 ℃ according to the cooling speed of 25 ℃/h when the ingot casting temperature reaches 470 ℃, and keeping the temperature for 18h to be discharged and hot rolled;
5) hot rolling: rolling according to the following steps: 360mm-355mm-347mm-337mm-312mm-290mm-265mm-240mm-215mm-190mm-165mm-140mm-115mm-95mm-75mm-55mm-37mm-18mm-11.5mm-6.5mm to obtain a hot rolled blank, and obtain a hot rolled blank with a thickness of 6.5 mm;
6) cold rolling: rolling the hot-rolled blank to the thickness required by a final finished product by adopting a four-roller cold rolling mill to obtain a copper-clad aluminum base plate material with the thickness of 0.8 mm;
7) trimming: removing irregular parts of two sides of the semi-finished product material by 3.5cm to ensure that the whole width of the material is consistent and the edge part is smooth;
8) straightening and cleaning: in order to remove cold rolling oil remained on the surface of the material due to cold rolling, straightening and cleaning are needed, the cleaning water temperature is 75 ℃, and the straightening and pulling speed is 20 m/min;
9) annealing of a finished product: and (3) placing the finished product thickness material coil into an annealing furnace, controlling the metal temperature at 170 ℃, keeping the temperature for 5 hours, discharging from the furnace, and naturally cooling to room temperature to obtain the final copper-clad aluminum-based plate material.
The invention has the advantages that: only three alloy elements of Si, Fe and Ni are added in the production, so that the material has certain strength and lower linear expansion coefficient, the tensile strength is 140-160MPa, the yield strength is more than or equal to 125MPa, and the elongation is more than or equal to 3%. The invention further reduces the linear expansion coefficient of the material, so that the material can not deform obviously due to the change of temperature when in use, and the service life of the whole product is prolonged.
Detailed Description
For the purpose of enhancing understanding of the present invention, the following detailed description will be given in conjunction with examples, which are provided for illustration only and do not limit the scope of the present invention.
Example 1
A copper-clad aluminum substrate material comprises the following steps:
1) smelting of the alloy: adding 18t of remelting industrial aluminum ingot into a flame reflection furnace for melting, slagging off, sampling and analyzing, and determining to add Si: 10.0 percent; fe: 0.6 percent; ni: 0.5 percent, leading the content of alloy elements to reach the required range, leading three alloy elements to improve the strength of the alloy material and simultaneously leading the linear expansion coefficient of the alloy not to be increased, then leading the molten aluminum to stand still, stir, refine, remove slag and then lead into a standing furnace, adding an aluminum-silicon alloy modifier to carry out modification and refinement treatment, leading the aluminum-silicon alloy modifier to form a large amount of dispersed artificially-made non-spontaneous crystal nuclei in molten metal, thereby obtaining fine casting crystal grains and achieving the purpose of improving the material performance; stirring again, refining, slagging off, degassing, filtering, feeding into a casting machine, and casting into ingots at the speed of 43mm/min, wherein the aluminum-silicon alloy modifier can refine alloy structure, so that alloy elements are distributed in the material more uniformly, the alloy element Ni can improve the internal structure of the alloy, and the linear expansion coefficient is reduced;
2) sawing the alloy cast ingot: sawing off defects at the bottom and the top of the cast ingot;
3) milling the surface of the alloy cast ingot: in order to remove a segregation layer and an oxide skin generated on the surface of the cast ingot by casting, the segregation layer and the oxide skin generated on the upper surface and the lower surface of the cast ingot are milled, the upper surface and the lower surface of the cast ingot are milled by 10mm respectively, and the thickness of the cast ingot after milling is 360 mm;
4) heating: placing the alloy ingot in a heating furnace, reducing the furnace gas temperature to 505 ℃ according to the cooling speed of 25 ℃/h when the ingot casting temperature reaches 470 ℃, and keeping the temperature for 18h to be discharged and hot rolled;
5) hot rolling: rolling according to the following steps: 360mm-355mm-347mm-337mm-312mm-290mm-265mm-240mm-215mm-190mm-165mm-140mm-115mm-95mm-75mm-55mm-37mm-18mm-11.5mm-6.5mm to obtain a hot rolled blank, and obtain a hot rolled blank with a thickness of 6.5 mm;
6) cold rolling: rolling the hot-rolled blank to the thickness required by a final finished product by adopting a four-roller cold rolling mill to obtain a copper-clad aluminum base plate material with the thickness of 0.8 mm;
7) trimming: removing irregular parts of two sides of the semi-finished product material by 3.5cm to ensure that the whole width of the material is consistent and the edge part is smooth;
8) straightening and cleaning: in order to remove cold rolling oil remained on the surface of the material due to cold rolling, straightening and cleaning are needed, the cleaning water temperature is 75 ℃, and the straightening and pulling speed is 20 m/min;
9) annealing of a finished product: and finally annealing the finished product, namely, putting the finished product thickness material coil into an annealing furnace, controlling the metal temperature at 170 ℃, keeping the temperature for 5 hours, discharging the material out of the furnace, and naturally cooling the material to room temperature to obtain the final copper-clad aluminum-based plate material.
The amounts of alloying elements in the copper-clad aluminum substrate material of example 1 were found to be as follows,
Si：10.15％，Fe：0.62％，Ni：0.53％；
the tensile strength of the finished product material is 143MPa, the yield strength is 132MPa, and the elongation is 5%.
Example 2
A copper-clad aluminum substrate material comprises the following steps:
1) smelting of the alloy: adding 18t of remelting industrial aluminum ingot into a flame reflection furnace for melting, slagging off, sampling and analyzing, determining to add Si according to an analysis result: 13.0 percent; fe: 0.9 percent; ni: 0.75 percent, the content of alloy elements reaches the required range, three alloy elements can improve the strength of the alloy material, and simultaneously the linear expansion coefficient of the alloy is not increased, then the molten aluminum is led into a standing furnace after standing, stirring, refining and slag removing, and an aluminum-silicon alloy modifier is added for modification and refinement treatment, so that a large amount of dispersed artificially-manufactured non-spontaneous crystal nuclei are formed in the molten metal, and then fine casting crystal grains are obtained, and the purpose of improving the material performance is achieved; stirring again, refining, slagging off, degassing, filtering, feeding into a casting machine, and casting into ingots at the speed of 45mm/min, wherein the aluminum-silicon alloy modifier can refine alloy structure, so that alloy elements are distributed in the material more uniformly, the alloy element Ni can improve the internal structure of the alloy, and the linear expansion coefficient is reduced;
2) sawing an alloy ingot: sawing off defects at the bottom and the top of the cast ingot;
3) milling the surface of the alloy cast ingot: in order to remove a segregation layer and an oxide skin generated on the surface of the cast ingot by casting, the segregation layer and the oxide skin generated on the upper surface and the lower surface of the cast ingot are milled, the upper surface and the lower surface of the cast ingot are milled by 10mm respectively, and the thickness of the cast ingot after milling is 360 mm;
4) heating: placing the alloy ingot in a heating furnace, reducing the temperature of furnace gas to 510 ℃ according to the cooling speed of 25 ℃/h when the temperature of the ingot reaches 475 ℃, and keeping the temperature for 18h to be discharged for hot rolling;
5) hot rolling: rolling according to the following steps: 360mm-355mm-347mm-337mm-312mm-290mm-265mm-240mm-215mm-190mm-165mm-140mm-115mm-95mm-75mm-55mm-37mm-18mm-11.5mm-6.5mm to obtain a hot rolled blank, and obtain a hot rolled blank with a thickness of 6.5 mm;
6) cold rolling: rolling the hot-rolled blank to the thickness required by a final finished product by adopting a four-roller cold rolling mill to obtain a copper-clad aluminum base plate material with the thickness of 1.5 mm;
7) trimming: removing the irregular parts of the two sides of the semi-finished product material by 4cm to ensure that the whole width of the material is consistent and the edge part is smooth;
8) straightening and cleaning: in order to remove cold rolling oil remained on the surface of the material due to cold rolling, straightening and cleaning are required, the cleaning water temperature is 80 ℃, and the straightening and pulling speed is 25 m/min;
9) annealing of a finished product: and finally annealing the finished product, namely, putting the finished product thickness coil into an annealing furnace, controlling the metal temperature at 175 ℃, keeping the temperature for 5 hours, discharging the product from the furnace, and naturally cooling the product to room temperature to obtain the final copper-clad aluminum-based plate material.
The alloying element content in the aluminum copper clad aluminum substrate material of example 2 was found to be,
Si：13.14％，Fe：0.93％，Ni：0.78％；
the tensile strength of the finished product material is 151MPa, the yield strength is 140MPa, and the elongation is 8%.
Example 3
A copper-clad aluminum substrate material comprises the following steps:
1) smelting of the alloy: adding 18t of remelting industrial aluminum ingot into a flame reflection furnace for melting, slagging off, sampling and analyzing, and determining to add Si: 16 percent; fe: 1.2 percent; ni: 1.0 percent, the content of alloy elements reaches the required range, three alloy elements can improve the strength of the alloy material, and simultaneously the linear expansion coefficient of the alloy is not increased, then molten aluminum is led into a standing furnace after standing, stirring, refining and slag removing, and an aluminum-silicon alloy modifier is added for modification and refinement treatment, so that a large amount of dispersed artificially-manufactured non-spontaneous crystal nuclei are formed in molten metal, and then fine casting crystal grains are obtained, and the purpose of improving the material performance is achieved; stirring again, refining, slagging off, degassing, filtering, feeding into a casting machine, and casting into ingots at the speed of 45mm/min, wherein the aluminum-silicon alloy modifier can refine alloy structure, so that alloy elements are distributed in the material more uniformly, the alloy element Ni can improve the internal structure of the alloy, and the linear expansion coefficient is reduced;
2) sawing the alloy cast ingot: sawing off defects at the bottom and the top of the cast ingot;
3) milling the surface of the alloy cast ingot: in order to remove a segregation layer and an oxide skin generated on the surface of the cast ingot by casting, the segregation layer and the oxide skin generated on the upper surface and the lower surface of the cast ingot are milled, the upper surface and the lower surface of the cast ingot are milled by 10mm respectively, and the thickness of the cast ingot after milling is 360 mm;
4) heating: placing the alloy cast ingot in a heating furnace, reducing the temperature of furnace gas to 515 ℃ according to the cooling speed of 25 ℃/h when the temperature of the cast ingot reaches 480 ℃, and keeping the temperature for 18h to be discharged for hot rolling;
5) hot rolling: rolling according to the following steps: 360mm-355mm-347mm-337mm-312mm-290mm-265mm-240mm-215mm-190mm-165mm-140mm-115mm-95mm-75mm-55mm-37mm-18mm-11.5mm-6.5mm to obtain a hot rolled blank, and obtain a hot rolled blank with a thickness of 6.5 mm;
6) cold rolling: rolling the hot-rolled blank to the thickness required by a final finished product by adopting a four-roller cold rolling mill to obtain a copper-clad aluminum-based plate material with the thickness of 2 mm;
7) trimming: removing the irregular parts of the two sides of the semi-finished product material by 4.5cm to ensure that the whole width of the material is consistent and the edge part is smooth;
8) straightening and cleaning: in order to remove cold rolling oil remained on the surface of the material due to cold rolling, straightening and cleaning are needed, the cleaning water temperature is 85 ℃, and the straightening and pulling speed is 30 m/min;
9) annealing of a finished product: and finally annealing the finished product, namely, putting the finished product thickness material coil into an annealing furnace, controlling the metal temperature at 180 ℃, keeping the temperature for 5 hours, discharging the material out of the furnace, and naturally cooling the material to room temperature to obtain the final copper-clad aluminum-based plate material.
The amounts of alloying elements in the copper-clad aluminum substrate material of example 3 were found to be as follows,
Si：15.94％，Fe：1.22％，Ni：0.93％；
the tensile strength of the finished product material is 159MPa, the yield strength is 148MPa, and the elongation is 7%.
Example 4
A copper-clad aluminum substrate material comprises the following steps:
1) smelting of the alloy: adding 18t of remelting industrial aluminum ingot into a flame reflection furnace for melting, slagging off, sampling and analyzing, and determining to add Si: 10.0 percent; fe: 0.6 percent; ni: 0.5 percent, leading the content of alloy elements to reach the required range, leading three alloy elements to improve the strength of the alloy material and simultaneously leading the linear expansion coefficient of the alloy not to be increased, then leading the molten aluminum to stand still, stir, refine, remove slag and then lead into a standing furnace, adding an aluminum-silicon alloy modifier to carry out modification and refinement treatment, leading the aluminum-silicon alloy modifier to form a large amount of dispersed artificially-made non-spontaneous crystal nuclei in molten metal, thereby obtaining fine casting crystal grains and achieving the purpose of improving the material performance; stirring again, refining, slagging off, degassing, filtering, feeding into a casting machine, and casting into ingots at the speed of 40mm/min, wherein the aluminum-silicon alloy modifier can refine alloy structure, so that alloy elements are distributed in the material more uniformly, the alloy element Ni can improve the internal structure of the alloy, and the linear expansion coefficient is reduced;
2) sawing the alloy cast ingot: sawing off defects at the bottom and the top of the cast ingot;
3) milling the surface of the alloy cast ingot: in order to remove a segregation layer and an oxide skin generated on the surface of the cast ingot by casting, the segregation layer and the oxide skin generated on the upper surface and the lower surface of the cast ingot are milled, the upper surface and the lower surface of the cast ingot are milled by 10mm respectively, and the thickness of the cast ingot after milling is 360 mm;
4) heating: placing the alloy ingot in a heating furnace, reducing the temperature of furnace gas to 510 ℃ according to the cooling speed of 25 ℃/h when the temperature of the ingot reaches 475 ℃, and keeping the temperature for 18h to be discharged for hot rolling;
5) hot rolling: rolling according to the following steps: 360mm-355mm-347mm-337mm-312mm-290mm-265mm-240mm-215mm-190mm-165mm-140mm-115mm-95mm-75mm-55mm-37mm-18mm-11.5mm-6.5mm to obtain a hot rolled blank, and obtain a hot rolled blank with a thickness of 6.5 mm;
6) cold rolling: rolling the hot-rolled blank to the thickness required by a final finished product by adopting a four-roller cold rolling mill to obtain a copper-clad aluminum base plate material with the thickness of 1.0 mm;
7) trimming: removing the irregular parts of the two sides of the semi-finished product material by 5cm to ensure that the whole width of the material is consistent and the edge part is smooth;
8) straightening and cleaning: in order to remove cold rolling oil remained on the surface of the material due to cold rolling, straightening and cleaning are needed, the cleaning water temperature is 75 ℃, and the straightening and pulling speed is 20 m/min;
9) annealing of a finished product: and finally annealing the finished product, namely, putting the finished product thickness material coil into an annealing furnace, controlling the metal temperature at 180 ℃, keeping the temperature for 5 hours, discharging the material out of the furnace, and naturally cooling the material to room temperature to obtain the final copper-clad aluminum-based plate material.
The amounts of alloying elements in the copper-clad aluminum substrate material of example 4 were found to be as follows,
Si：10.17％，Fe：0.64％，Ni：0.51％；
the tensile strength of the finished product material is 137MPa, the yield strength is 128MPa, and the elongation is 10%.
Example 5
A copper-clad aluminum substrate material comprises the following steps:
1) smelting of the alloy: adding 18t of remelting industrial aluminum ingot into a flame reflection furnace for melting, slagging off, sampling and analyzing, and determining to add Si: 13.0 percent; fe: 0.8 percent; ni: 0.8 percent, leading the content of alloy elements to reach the required range, leading three alloy elements to improve the strength of the alloy material and simultaneously leading the linear expansion coefficient of the alloy not to be increased, then leading the molten aluminum to stand still, stir, refine, remove slag and then to a standing furnace, adding an aluminum-silicon alloy modifier to carry out modification and refinement treatment, leading the aluminum-silicon alloy modifier to form a large amount of dispersed artificially-manufactured non-spontaneous crystal nuclei in molten metal, thereby obtaining fine casting crystal grains and achieving the purpose of improving the material performance; stirring again, refining, slagging off, degassing, filtering, feeding into a casting machine, and casting into ingots at the speed of 45mm/min, wherein the aluminum-silicon alloy modifier can refine alloy structure, so that alloy elements are distributed in the material more uniformly, the alloy element Ni can improve the internal structure of the alloy, and the linear expansion coefficient is reduced;
2) sawing the alloy cast ingot: sawing off defects at the bottom and the top of the cast ingot;
3) milling the surface of the alloy cast ingot: in order to remove a segregation layer and an oxide skin generated on the surface of the cast ingot by casting, the segregation layer and the oxide skin generated on the upper surface and the lower surface of the cast ingot are milled, the upper surface and the lower surface of the cast ingot are milled by 10mm respectively, and the thickness of the cast ingot after milling is 360 mm;
4) heating: placing the alloy ingot in a heating furnace, reducing the temperature of furnace gas to 510 ℃ according to the cooling speed of 25 ℃/h when the temperature of the ingot reaches 475 ℃, and keeping the temperature for 18h to be discharged for hot rolling;
5) hot rolling: rolling according to the following steps: 360mm-355mm-347mm-337mm-312mm-290mm-265mm-240mm-215mm-190mm-165mm-140mm-115mm-95mm-75mm-55mm-37mm-18mm-11.5mm-6.5mm to obtain a hot rolled blank, and obtain a hot rolled blank with a thickness of 6.5 mm;
6) cold rolling: rolling the hot-rolled blank to the thickness required by a final finished product by adopting a four-roller cold rolling mill to obtain a copper-clad aluminum base plate material with the thickness of 1.5 mm;
7) trimming: removing the irregular parts of the two sides of the semi-finished product material by 4cm to ensure that the whole width of the material is consistent and the edge part is smooth;
8) straightening and cleaning: in order to remove cold rolling oil remained on the surface of the material due to cold rolling, straightening and cleaning are needed, the cleaning water temperature is 75 ℃, and the straightening and pulling speed is 20 m/min;
9) annealing of a finished product: and finally annealing the finished product, namely, putting the finished product thickness coil into an annealing furnace, controlling the metal temperature at 175 ℃, keeping the temperature for 5 hours, discharging the product from the furnace, and naturally cooling the product to room temperature to obtain the final copper-clad aluminum-based plate material.
The amounts of alloying elements in the copper-clad aluminum substrate material of example 5 were found to be as follows,
Si：12.89％，Fe：0.82％，Ni：0.78％；
the tensile strength of the finished product material is 152MPa, the yield strength is 141MPa, and the elongation is 6%.
The invention provides a copper-clad aluminum substrate material applied to the industry and a preparation method thereof, wherein Si, Fe and Ni are used as alloy elements, the thickness of the aluminum alloy is 0.8-2.0mm, the tensile strength is 140-160MPa, the yield strength is more than or equal to 125MPa, the elongation is more than or equal to 3%, and the linear expansion coefficient of the material is 16-18E-6, compared with 22-23E-6 of 5052, the reduction range reaches 25%, the thermal expansion caused by the temperature rise of the copper-clad aluminum substrate in the use process is greatly reduced, the material cannot deform obviously due to the temperature change in the use process, the service life of the whole product is prolonged, and the deformation and distortion degree of the aluminum substrate in the cold-heat alternating use environment are obviously reduced.
Although the present invention has been described in detail with reference to the above embodiments, it is to be understood that the present invention is not limited to the details of the embodiments, and that other embodiments may be devised without departing from the spirit and scope of the present invention.
Claims (1)
1. The copper-clad aluminum substrate material is characterized by comprising the following components in percentage by weight: si: 10.15 percent; fe: 0.62 percent; ni: 0.53 percent, less than or equal to 0.1 percent of other impurity elements and the balance of Al;
the tensile strength of the copper-clad aluminum substrate material is 143MPa, the yield strength is 132MPa, and the elongation is 5%;
the preparation method of the copper-clad aluminum substrate material comprises the following steps:
1) smelting of the alloy: according to Si: 10 percent; fe: 0.6 percent; ni: 0.5 percent, less than or equal to 0.1 percent of other impurity elements and the balance of Al, adding an industrial aluminum ingot for remelting into a flame reflection furnace for melting, slagging off, sampling and analyzing, determining the weight of an alloy additive added with Si, Fe and Ni according to an analysis result, then leading molten aluminum into the standing furnace after standing, stirring, refining and slagging off, adding an aluminum-silicon alloy modifier for modification and refinement, stirring again, refining and slagging off, degassing and filtering, and feeding into a casting machine for casting at the speed of 43mm/min to form a cast ingot;
2) sawing the alloy cast ingot: sawing off defects at the bottom and the top of the cast ingot;
3) milling the surface of the alloy cast ingot: milling segregation layers and oxide skins generated on the upper surface and the lower surface of the cast ingot;
4) heating: placing the alloy ingot in a heating furnace, reducing the furnace gas temperature to 505 ℃ according to the cooling speed of 25 ℃/h when the ingot casting temperature reaches 470 ℃, and keeping the temperature for 18h to be discharged and hot rolled;
5) hot rolling: rolling according to the following steps: 360mm-355mm-347mm-337mm-312mm-290mm-265mm-240mm-215mm-190mm-165mm-140mm-115mm-95mm-75mm-55mm-37mm-18mm-11.5mm-6.5mm to obtain a hot rolled blank, and obtain a hot rolled blank with a thickness of 6.5 mm;
6) cold rolling: rolling the hot-rolled blank to the thickness required by a final finished product by adopting a four-roller cold rolling mill to obtain a copper-clad aluminum base plate material with the thickness of 0.8 mm;
7) trimming: removing irregular parts of two sides of the semi-finished product material by 3.5cm to ensure that the whole width of the material is consistent and the edge part is smooth;
8) straightening and cleaning: in order to remove cold rolling oil remained on the surface of the material due to cold rolling, straightening and cleaning are required, the cleaning water temperature is 75 ℃, and the straightening and pulling speed is 20 m/min;
9) annealing of a finished product: and (3) placing the finished product thickness coil into an annealing furnace, controlling the metal temperature at 170 ℃, keeping the temperature for 5 hours, discharging from the furnace, and naturally cooling to room temperature to obtain the final copper-clad aluminum-based plate material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111001566.2A CN113755723B (en) | 2019-07-11 | 2019-07-11 | Copper-clad aluminum substrate material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111001566.2A CN113755723B (en) | 2019-07-11 | 2019-07-11 | Copper-clad aluminum substrate material |
| CN201910633239.5A CN110408825A (en) | 2019-07-11 | 2019-07-11 | One kind is novel to cover copper aluminium base plate material |
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| CN201910633239.5A Division CN110408825A (en) | 2019-07-11 | 2019-07-11 | One kind is novel to cover copper aluminium base plate material |
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| CN113755723A CN113755723A (en) | 2021-12-07 |
| CN113755723B true CN113755723B (en) | 2022-06-10 |
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| JP2003147465A (en) * | 2001-11-06 | 2003-05-21 | Sumitomo Light Metal Ind Ltd | Aluminum alloy fin material for heat exchanger having excellent formability and brazability |
| CN107739910A (en) * | 2017-09-18 | 2018-02-27 | 中铝材料应用研究院有限公司 | A kind of hot alusil alloy of high-strength highly-conductive and its preparation method and application |
| CN109797321A (en) * | 2019-02-19 | 2019-05-24 | 南通恒金复合材料有限公司 | A kind of no layer soldering aluminium alloy heat sink material and preparation method thereof |
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| CN103818051B (en) * | 2014-03-19 | 2016-08-24 | 南通恒秀铝热传输材料有限公司 | A kind of aluminium alloy compound foil and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2003147465A (en) * | 2001-11-06 | 2003-05-21 | Sumitomo Light Metal Ind Ltd | Aluminum alloy fin material for heat exchanger having excellent formability and brazability |
| CN107739910A (en) * | 2017-09-18 | 2018-02-27 | 中铝材料应用研究院有限公司 | A kind of hot alusil alloy of high-strength highly-conductive and its preparation method and application |
| CN109797321A (en) * | 2019-02-19 | 2019-05-24 | 南通恒金复合材料有限公司 | A kind of no layer soldering aluminium alloy heat sink material and preparation method thereof |
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