Preparation process of microalloyed high-conductivity 6101 aluminum alloy material

Abstract

The invention discloses a preparation process of a microalloyed high-conductivity 6101 aluminum alloy material, which belongs to the technical field of aluminum alloy preparation and comprises the following steps of: designing components, proportioning, smelting and refining, casting and homogenizing, and performing primary die casting treatment on the material; according to the method, multiple die-casting processes aiming at the material are arranged in the method, and the thickness of the material subjected to die-casting each time is gradually reduced, so that the thickness of the material can be gradually controlled, the ultrathin aluminum alloy material can be formed, and the conductivity of the material can be greatly improved; in addition, homogenization treatment of the material is further interspersed among the multiple die casting processes, it can be guaranteed that after the material is subjected to die casting each time, alloy elements in the material are evenly distributed again in a base body, the finally-formed ultrathin aluminum alloy material also has high structural strength and quality, and the actual application effect of the method is greatly improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of aluminum alloy preparation, and in particular relates to a preparation process of a micro-alloyed high-conductivity 6101 aluminum alloy material. Background Art

[0002] Aluminum alloy is a common metal material with a range of advantages, including low density, high strength, excellent corrosion resistance, excellent thermal and electrical conductivity, and ease of processing, forming, and welding. These properties make aluminum alloy a key material in a variety of industries, including aerospace, automotive, construction, electronics, and packaging. The production of aluminum alloys requires the application of advanced preparation processes.

[0003] Chinese Patent Publication No. CN109487105A discloses a process for preparing an aluminum alloy, comprising the following steps: collecting alloy powder; screening to obtain alloy powder to be used; classifying the alloy powder to be used according to particle size; proportioning to proportion the classified alloy powder with SiC particles to obtain a mixture; placing the mixture in a can and sealing it; heating to 350-550°C and holding the temperature for 30-120 minutes to obtain a can blank; and extruding the can blank using an extruder at a main push rod speed of less than 1 mm / s and an extrusion ratio of 10-25 to obtain an extruded bar. The alloy powder is not remelted, thus reducing energy consumption and environmental pollution. This process reduces production costs and pollution in the injection molding process. Conventional powder metallurgy raw materials are often a mixture of several powders, which poses the risk of uneven mixing. However, injection molding technology can produce alloy powders with uniform composition without the need for proportioning and mixing the raw materials. Although the current aluminum alloy preparation process can complete the preparation of aluminum alloy, it does not have precise control over the thickness of the material. When the material thickness is thicker, thicker material often means a longer current path. According to the law of resistance, the resistance is proportional to the length of the current path. Therefore, thicker materials may exhibit higher resistance values, thereby affecting the conductive effect of the finished product. If the material is too thick, it may also cause heat to accumulate inside the material, thereby affecting the conductive performance and stability of the material. There is an urgent need for a micro-alloyed high-conductivity 6101 aluminum alloy material preparation process. Summary of the Invention

[0004] The purpose of the present invention is to solve the above problems and to propose a preparation process of micro-alloyed high-conductivity 6101 aluminum alloy material.

[0005] In order to achieve the above object, the present invention adopts the following technical solution: a process for preparing a microalloyed high-conductivity 6101 aluminum alloy material, comprising the following steps:

[0006] S1. Design ingredients and prepare ingredients;

[0007] S2, smelting and refining;

[0008] S3, performing casting and homogenization treatment;

[0009] S4, performing a die-casting process on the material;

[0010] S5, removing the material and performing secondary homogenization treatment;

[0011] S6, performing secondary die-casting on the material again;

[0012] S7. Measure the thickness of the material;

[0013] S8, removing the material for heat treatment;

[0014] S9, perform material surface treatment;

[0015] S10, conduct quality inspection and warehousing.

[0016] As a further description of the above technical solution:

[0017] In S1, the composition design and batching are carried out, specifically: the basic composition of 6101 aluminum alloy, including aluminum, magnesium, and silicon elements, is obtained, trace amounts of other elements, including copper, zinc, titanium, and zirconium, are added through microalloying, and each raw material is accurately weighed.

[0018] As a further description of the above technical solution:

[0019] In S2, smelting and refining are carried out, and the specific steps are: introducing the raw materials into an induction furnace and heating them to 700-800°C to fully melt the alloy elements; using nitrogen, argon or hexachloroethane refining agent to remove gas and non-metallic inclusions in the melt to improve the purity of the melt.

[0020] As a further description of the above technical solution:

[0021] In said S3, casting and homogenization treatment are performed, and the specific steps are: pouring the melt into a mold, waiting for it to cool and solidify into an ingot, and then heating it to 115-125° C. for homogenization treatment.

[0022] As a further description of the above technical solution:

[0023] In said S4, the material is subjected to a die-casting process, and the specific steps are: placing the material in an induction furnace, raising its temperature to 350-450°C, taking it out of the die-casting machine, fixing it, and starting the die-casting machine to perform a die-casting process on it, controlling its thickness to be compressed to 60-80mm.

[0024] As a further description of the above technical solution:

[0025] In the step S5 , the material is removed and subjected to a secondary homogenization treatment. Before the secondary homogenization treatment, the temperature of the material is lowered to 110-120° C., and the cooling rate is controlled to be 15-20° C. / min.

[0026] As a further description of the above technical solution:

[0027] In said S6, the material is subjected to secondary die-casting treatment again, and the specific steps are: placing the material in the induction furnace again, raising its temperature to 300-380°C, taking it out of the die-casting machine, fixing it, and starting the die-casting machine to perform secondary die-casting treatment on it, controlling its thickness to be compressed to 40-60mm.

[0028] As a further description of the above technical solution:

[0029] In S7, the thickness of the material is measured, and the above operation is repeated multiple times until the thickness of the material is 15-25 mm.

[0030] As a further description of the above technical solution:

[0031] In S9, the material surface is treated by anodizing, spraying, and electroplating as needed to improve the corrosion resistance and aesthetics of the material.

[0032] As a further description of the above technical solution:

[0033] In S10, quality inspection and warehousing are carried out, wherein the quality inspection includes chemical composition analysis, mechanical property test, electrical conductivity test and metallographic structure observation.

[0034] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0035] In the present invention, the method is provided with multiple die-casting processes for the material, and the thickness of the material is gradually reduced each time the die-casting is performed, so that the thickness of the material can be gradually controlled, and ultra-thin aluminum alloy materials can be formed, which can greatly improve the conductivity of the material. In addition, material homogenization treatment is interspersed between the multiple die-casting processes, which can ensure that after each material die-casting, the alloy elements inside it are redistributed evenly in the matrix, so that the ultra-thin aluminum alloy material finally formed also has higher structural strength and quality, which greatly improves the practical application effect of the method. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 This is a flow chart of the preparation process of a micro-alloyed high-conductivity 6101 aluminum alloy material. DETAILED DESCRIPTION

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0038] Example 1

[0039] See also Figure 1 The present invention provides a technical solution: a process for preparing a microalloyed high-conductivity 6101 aluminum alloy material, comprising the following steps:

[0040] S1. Design and prepare the ingredients, specifically: obtain the basic components of 6101 aluminum alloy, including aluminum, magnesium, and silicon, add trace amounts of other elements, including copper, zinc, titanium, and zirconium, through microalloying, and accurately weigh each raw material;

[0041] S2. Melting and refining, the specific steps of which are: introducing the raw materials into an induction furnace and heating them to 700°C to fully dissolve the alloy elements, using hexachloroethane refining agent to remove gas and non-metallic inclusions in the melt to improve the purity of the melt;

[0042] S3, performing casting and homogenization treatment, the specific steps of which are: pouring the melt into a mold, waiting for it to cool and solidify into an ingot, and then heating it to 115° C. for homogenization treatment;

[0043] S4. Perform a die-casting process on the material, wherein the specific steps are as follows: placing the material in an induction furnace, raising its temperature to 350°C, taking it out of the induction furnace, fixing it, and starting the die-casting machine to perform a die-casting process on it, controlling its thickness to be compressed to 60mm;

[0044] S5. Remove the material and perform secondary homogenization treatment. Before the secondary homogenization treatment, reduce the temperature of the material to 110° C. at a cooling rate of 15° C. / min.

[0045] S6. Perform a secondary die-casting process on the material again, and the specific steps are as follows: place the material in the induction furnace again, raise its temperature to 300°C, take it out of the die-casting machine, fix it, and start the die-casting machine to perform a secondary die-casting process, controlling its thickness to be compressed to 40mm;

[0046] S7. Measure the thickness of the material and repeat the above operation several times until the thickness of the material reaches 15 mm.

[0047] S8, removing the material for heat treatment;

[0048] S9. Perform surface treatment on the material, such as anodizing, spraying, and electroplating as needed to improve the corrosion resistance and aesthetics of the material;

[0049] S10. Conduct quality inspection and warehousing, where quality inspection includes chemical composition analysis, mechanical property test, electrical conductivity test and metallographic structure observation.

[0050] In this embodiment, the method is equipped with multiple die-casting processes for the material, and the thickness of the material is gradually reduced each time the die-casting is performed, so that the thickness of the material can be gradually controlled, ultra-thin aluminum alloy materials can be formed, and the conductivity of the material can be greatly improved.

[0051] Example 2

[0052] See also Figure 1 The present invention provides a technical solution: a process for preparing a microalloyed high-conductivity 6101 aluminum alloy material, comprising the following steps:

[0053] S1. Design and prepare the ingredients, specifically: obtain the basic components of 6101 aluminum alloy, including aluminum, magnesium, and silicon, add trace amounts of other elements, including copper, zinc, titanium, and zirconium, through microalloying, and accurately weigh each raw material;

[0054] S2. Melting and refining, the specific steps of which are: introducing the raw materials into an induction furnace and heating them to 750°C to fully melt the alloy elements, using argon refining agent to remove gas and non-metallic inclusions in the melt to improve the purity of the melt;

[0055] S3, performing casting and homogenization treatment, the specific steps of which are: pouring the melt into a mold, waiting for it to cool and solidify into an ingot, and then heating it to 120° C. for homogenization treatment;

[0056] S4. Perform a die-casting process on the material, wherein the specific steps are as follows: placing the material in an induction furnace, raising its temperature to 380° C., taking it out of the induction furnace, fixing it, and starting the die-casting machine to perform a die-casting process on it, controlling the thickness of the material to be compressed to 70 mm;

[0057] S5. Remove the material and perform a secondary homogenization treatment. Before the secondary homogenization treatment, reduce the temperature of the material to 110° C. at a cooling rate of 16° C. / min.

[0058] S6. Perform a secondary die-casting process on the material again, and the specific steps are as follows: place the material in the induction furnace again, increase its temperature to 350°C, take it out of the die-casting machine, fix it, and start the die-casting machine to perform a secondary die-casting process, controlling the thickness to be compressed by 50mm;

[0059] S7. Measure the thickness of the material and repeat the above operation several times until the thickness of the material is 15-25 mm;

[0060] S8, removing the material for heat treatment;

[0061] S9. Perform surface treatment on the material, such as anodizing, spraying, and electroplating as needed to improve the corrosion resistance and aesthetics of the material;

[0062] S10. Conduct quality inspection and warehousing, where quality inspection includes chemical composition analysis, mechanical property test, electrical conductivity test and metallographic structure observation.

[0063] In this embodiment, the method also intersperses material homogenization treatment between multiple die-casting processes, which can ensure that after each material die-casting, the alloy elements inside it are redistributed evenly in the matrix, so that the final ultra-thin aluminum alloy material also has higher structural strength and quality, greatly improving the practical application effect of the method.

[0064] Example 3

[0065] See also Figure 1 The present invention provides a technical solution: a process for preparing a microalloyed high-conductivity 6101 aluminum alloy material, comprising the following steps:

[0066] S1. Design and prepare the ingredients, specifically: obtain the basic components of 6101 aluminum alloy, including aluminum, magnesium, and silicon, add trace amounts of other elements, including copper, zinc, titanium, and zirconium, through microalloying, and accurately weigh each raw material;

[0067] S2, smelting and refining, the specific steps are: introducing the raw materials into an induction furnace and heating them to 800 ° C to fully melt the alloy elements, using nitrogen refining agent to remove gas and non-metallic inclusions in the melt to improve the purity of the melt;

[0068] S3, performing casting and homogenization treatment, the specific steps of which are: pouring the melt into a mold, waiting for it to cool and solidify into an ingot, and then heating it to 125°C for homogenization treatment;

[0069] S4. Perform a die-casting process on the material, wherein the specific steps are as follows: placing the material in an induction furnace, raising its temperature to 450°C, taking it out of the induction furnace, fixing it, and then starting the die-casting machine to perform a die-casting process on it, controlling its thickness to be compressed to 80mm;

[0070] S5. Remove the material and perform secondary homogenization treatment. Before the secondary homogenization treatment, reduce the temperature of the material to 120°C at a cooling rate of 20°C / min.

[0071] S6. Perform a secondary die-casting process on the material again, and the specific steps are as follows: place the material in the induction furnace again, raise its temperature to 380°C, take it out of the die-casting machine, fix it, and start the die-casting machine to perform a secondary die-casting process, controlling the thickness of the material to be compressed to 60mm;

[0072] S7. Measure the thickness of the material and repeat the above operation several times until the thickness of the material reaches 25 mm.

[0073] S8, removing the material for heat treatment;

[0074] S9. Perform surface treatment on the material, such as anodizing, spraying, and electroplating as needed to improve the corrosion resistance and aesthetics of the material;

[0075] S10. Conduct quality inspection and warehousing, where quality inspection includes chemical composition analysis, mechanical property test, electrical conductivity test and metallographic structure observation.

[0076] Example 4

[0077] See also Figure 1 The present invention provides a technical solution: a process for preparing a microalloyed high-conductivity 6101 aluminum alloy material, comprising the following steps:

[0078] S1. Design and prepare the ingredients, specifically: obtain the basic components of 6101 aluminum alloy, including aluminum, magnesium, and silicon, add trace amounts of other elements, including copper, zinc, titanium, and zirconium, through microalloying, and accurately weigh each raw material;

[0079] S2, smelting and refining, the specific steps are: introducing the raw materials into an induction furnace and heating them to 800 ° C to fully melt the alloy elements, using nitrogen refining agent to remove gas and non-metallic inclusions in the melt to improve the purity of the melt;

[0080] S3, performing casting and homogenization treatment, the specific steps of which are: pouring the melt into a mold, waiting for it to cool and solidify into an ingot, and then heating it to 125°C for homogenization treatment;

[0081] S4. Perform a die-casting process on the material, wherein the specific steps are as follows: placing the material in an induction furnace, raising its temperature to 450°C, taking it out of the induction furnace, fixing it, and starting the die-casting machine to perform a die-casting process on it, controlling its thickness to be compressed to 70mm;

[0082] S5. Remove the material and perform a secondary homogenization treatment. Before the secondary homogenization treatment, reduce the temperature of the material to 110° C. at a cooling rate of 20° C. / min.

[0083] S6. Perform a secondary die-casting process on the material again, and the specific steps are as follows: place the material in the induction furnace again, raise its temperature to 380°C, take it out of the die-casting machine, fix it, and start the die-casting machine to perform a secondary die-casting process, controlling the thickness of the material to be compressed to 55mm;

[0084] S7. Measure the thickness of the material and repeat the above operation several times until the thickness of the material reaches 20 mm.

[0085] S8, removing the material for heat treatment;

[0086] S9. Perform surface treatment on the material, such as anodizing, spraying, and electroplating as needed to improve the corrosion resistance and aesthetics of the material;

[0087] S10. Conduct quality inspection and warehousing, where quality inspection includes chemical composition analysis, mechanical property test, electrical conductivity test and metallographic structure observation.

[0088] In this embodiment, the method is provided with multiple die-casting processes for the material, and the thickness of the material is gradually reduced each time the die-casting is performed, so that the thickness of the material can be gradually controlled, and ultra-thin aluminum alloy materials can be formed, which can greatly improve the conductivity of the material. In addition, material homogenization treatment is interspersed between the multiple die-casting processes, which can ensure that after each die-casting of the material, the alloy elements inside it are redistributed evenly in the matrix, so that the ultra-thin aluminum alloy material finally formed also has higher structural strength and quality, which greatly improves the practical application effect of the method.

[0089] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A process for preparing a microalloyed high-conductivity 6101 aluminum alloy material, characterized by: The steps include: S1. Design ingredients and prepare ingredients; S2, smelting and refining; S3, performing casting and homogenization treatment; S4, performing a die-casting process on the material; S5, removing the material and performing secondary homogenization treatment; S6, performing secondary die-casting on the material again; S7. Measure the thickness of the material; S8, removing the material for heat treatment; S9, perform material surface treatment; S10, conduct quality inspection and warehousing.

2. The process for preparing a microalloyed high-conductivity 6101 aluminum alloy material according to claim 1, characterized in that: In S1, the composition design and batching are carried out, specifically: the basic composition of 6101 aluminum alloy, including aluminum, magnesium, and silicon elements, is obtained, trace amounts of other elements, including copper, zinc, titanium, and zirconium, are added through microalloying, and each raw material is accurately weighed.

3. The process for preparing a microalloyed high-conductivity 6101 aluminum alloy material according to claim 1, characterized in that: In S2, smelting and refining are carried out, and the specific steps are: introducing the raw materials into an induction furnace and heating them to 700-800°C to fully melt the alloy elements; using nitrogen, argon or hexachloroethane refining agent to remove gas and non-metallic inclusions in the melt to improve the purity of the melt.

4. The process for preparing a microalloyed high-conductivity 6101 aluminum alloy material according to claim 1, characterized in that: In said S3, casting and homogenization treatment are performed, and the specific steps are: pouring the melt into a mold, waiting for it to cool and solidify into an ingot, and then heating it to 115-125° C. for homogenization treatment.

5. The process for preparing a microalloyed high-conductivity 6101 aluminum alloy material according to claim 1, characterized in that: In said S4, the material is subjected to a die-casting process, and the specific steps are: placing the material in an induction furnace, raising its temperature to 350-450°C, taking it out of the die-casting machine, fixing it, and starting the die-casting machine to perform a die-casting process on it, controlling its thickness to be compressed to 60-80mm.

6. The process for preparing a microalloyed high-conductivity 6101 aluminum alloy material according to claim 1, characterized in that: In the step S5 , the material is removed and subjected to a secondary homogenization treatment. Before the secondary homogenization treatment, the temperature of the material is lowered to 110-120° C., and the cooling rate is controlled to be 15-20° C. / min.

7. The process for preparing a microalloyed high-conductivity 6101 aluminum alloy material according to claim 1, characterized in that: In said S6, the material is subjected to secondary die-casting treatment again, and the specific steps are: placing the material in the induction furnace again, raising its temperature to 300-380°C, taking it out of the die-casting machine, fixing it, and starting the die-casting machine to perform secondary die-casting treatment on it, controlling its thickness to be compressed to 40-60mm.

8. The process for preparing a microalloyed high-conductivity 6101 aluminum alloy material according to claim 1, characterized in that: In S7, the thickness of the material is measured, and the above operation is repeated multiple times until the thickness of the material is 15-25 mm.

9. The process for preparing a microalloyed high-conductivity 6101 aluminum alloy material according to claim 1, characterized in that: In S9, the material surface is treated by anodizing, spraying, and electroplating as needed to improve the corrosion resistance and aesthetics of the material.

10. The process for preparing a microalloyed high-conductivity 6101 aluminum alloy material according to claim 1, characterized in that: In S10, quality inspection and warehousing are carried out, wherein the quality inspection includes chemical composition analysis, mechanical property test, electrical conductivity test and metallographic structure observation.

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