High-quality aluminum alloy ingot production method
Through the combined process of smelting, refining additives and inert gases of a variety of aluminum alloy materials, the problem of removing impurity gases in aluminum alloy ingots is solved, the production of high-quality aluminum alloy ingots is achieved, and the purity and quality of aluminum alloy ingots are improved.
Patent Information
- Application Number
- CN202311859400.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-30
- Publication Date
- 2025-07-01
AI Technical Summary
It is difficult to produce high-quality aluminum alloy ingots in the prior art, especially during the initial training and refining of aluminum alloy melts, resulting in low purity and quality of aluminum alloy ingots.
The combined process of smelting, refining additives and inert gas circulation and ventilation of a variety of aluminum alloy materials is adopted, including stirring, floating reactant removal, alternate inflow of inert gases and static treatment, combined with annealing treatment, to ensure the high quality standards of aluminum alloy melt.
Through multi-frequency inert gas aeration treatment and refining steps, impurity gas is effectively removed, the purity and quality of aluminum alloy ingots are improved, and the high quality standards are reached.
Abstract
Description
Technical Field
[0001] The present invention relates to the field of metal processing, and particularly to a method for producing high-quality aluminum alloy ingots. Background Art
[0002] Aluminum alloy ingots are made from pure aluminum and recycled aluminum, and other elements such as silicon (Si), copper (Cu), magnesium (Mg), and iron (Fe) are added according to international standards or special requirements to improve the deficiencies of pure aluminum in castability, chemical properties, and physical properties. Summary of the Invention
[0003] The main technical problem to be solved by the present invention is to provide a method for producing high-quality aluminum alloy ingots, which can produce high-quality aluminum alloy ingots. In the production of aluminum alloy ingots, the aluminum alloy melt reaches high-quality standards through primary refining and refining.
[0004] To solve the above technical problem, a technical solution adopted by the present invention is: to provide a method for producing high-quality aluminum alloy ingots, including the following steps: (1) Melting of aluminum alloy melt: Heat pure aluminum to melting, then add various aluminum alloy materials and raise the temperature to melt all alloys, and continue melting to obtain an aluminum alloy melt; (2) Refining of aluminum alloy melt: Add a refining additive to the aluminum alloy melt and conduct refining treatment by circulating and ventilating a single inert gas. After refining, remove the floating reactants of the aluminum alloy melt, then raise the temperature again, add a grain refiner for refining, and finally remove slag from the surface layer; (3) Exhaust: Introduce at least two inert gases, and the different inert gases are introduced in sequence; (4) Standing: Let the refined aluminum alloy melt stand; (5) Ingot casting: Cast aluminum alloy ingots; (6) Annealing treatment: Anneal the cast aluminum alloy ingots obtained above to obtain finished aluminum alloy ingots.
[0005] In a preferred embodiment of the present invention, the various aluminum alloy materials in step (1) at least include aluminum-nickel alloy, aluminum-zinc alloy, aluminum-iron alloy, and aluminum-titanium alloy.
[0006] In a preferred embodiment of the present invention, when adding the refining additive in step (2), it is fully stirred and the inert gas is continuously introduced.
[0007] In a preferred embodiment of the present invention, the interval between the two inert gases in step (3) is at least 10 minutes, and the aluminum alloy melt is stirred during the interval stage.
[0008] The beneficial effects of the present invention are as follows: The present invention can produce high-quality aluminum alloy ingots. During the production of aluminum alloy ingots, the aluminum alloy melt reaches high-quality standards through primary refining and refining. In both primary refining and refining, multi-frequency inert gas ventilation treatment is carried out, which can effectively remove impurity gases, making the aluminum alloy ingots have higher purity and better quality. Embodiment
[0009] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0010] Example 1 A method for producing high-quality aluminum alloy ingots includes the following steps: (1) Melting of aluminum alloy melt: Pure aluminum is heated and melted, and then various aluminum alloy materials are added and the temperature is raised to melt all the alloys. The aluminum alloy materials at least include aluminum-nickel alloy, aluminum-zinc alloy, aluminum-iron alloy, and aluminum-titanium alloy. Continuous melting is carried out to obtain an aluminum alloy melt; (2) Refining of aluminum alloy melt: The aluminum alloy melt is added with a refining additive and circulated and ventilated with a single inert gas for refining treatment. When adding the refining additive, it is fully stirred and the inert gas is continuously introduced. After refining, the floating reactants of the aluminum alloy melt are removed, and then the temperature is raised again, a grain refiner is added for refining, and finally slag is removed from the surface layer; (3) Exhaust: At least two inert gases are introduced, and different inert gases are introduced in sequence. The interval between the connection segments of the two inert gases is at least 10 minutes, and the aluminum alloy melt is stirred during the interval stage; (4) Standing: The refined aluminum alloy melt is allowed to stand; (5) Ingot casting: Aluminum alloy ingots are cast; (6) Annealing treatment: The cast aluminum alloy ingots are subjected to annealing treatment to obtain finished aluminum alloy ingots. The present invention can produce high-quality aluminum alloy ingots. During the production of aluminum alloy ingots, the aluminum alloy melt reaches high-quality standards through primary refining and refining. In both primary refining and refining, multi-frequency inert gas ventilation treatment is carried out, which can effectively remove impurity gases, making the aluminum alloy ingots have higher purity and better quality.
[0011] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the content of the specification of the present invention, or directly or indirectly applied in other related technical fields, shall be included in the patent protection scope of the present invention by the same token.
Claims
1. A method for producing high-quality aluminum alloy ingots, characterized in that, It includes the following steps: (1) Melting and smelting of aluminum alloy melt: Pure aluminum is heated and smelted until it melts, then a variety of aluminum alloy materials are added and the temperature is raised to melt all the alloys, and continuous smelting is carried out to obtain aluminum alloy melt; (2) Refining of aluminum alloy melt: Refining additives are added to the aluminum alloy melt and a single inert gas is introduced for cyclic ventilation for refining treatment. After refining, the floating reactants on the aluminum alloy melt are removed, then the temperature is raised again, a grain refiner is added for refining, and finally slag is removed from the surface layer; (3) Exhausting: At least two inert gases are introduced, and different inert gases are introduced in sequence; (4) Standing: The refined aluminum alloy melt is allowed to stand; (5) Ingot casting: Casting aluminum alloy ingots; (6) Annealing treatment: The cast aluminum alloy ingots are subjected to annealing treatment to obtain finished aluminum alloy ingots.
2. The manufacturing process of the high-precision die-cast aluminum alloy ingot according to claim 1, characterized in that, The variety of aluminum alloy materials in step (1) at least includes aluminum-nickel alloy, aluminum-zinc alloy, aluminum-iron alloy and aluminum-titanium alloy.
3. The manufacturing process of the high-precision die-cast aluminum alloy ingot according to claim 1, wherein When adding refining additives in step (2), it is fully stirred and the inert gas is continuously introduced.
4. The manufacturing process of the high-precision die-cast aluminum alloy ingot according to claim 1, characterized in that, In step (3), the interval between the connection segments of the two inert gases is at least 10 minutes, and the aluminum alloy melt is stirred during the interval stage.