High-purity molten aluminum pouring method

Abstract

The invention discloses a high-purity molten aluminum pouring method which comprises the following steps: (1) pouring molten aluminum, namely pouring the molten aluminum into a molten aluminum pool; (2) degassing the molten aluminum, namely degassing the molten aluminum in the molten aluminum pool according to various modes; (3) preparing a mold, namely placing a molten aluminum mold on a pouring station in advance; (4) molten aluminum pouring is conducted, specifically, molten aluminum in the molten aluminum pool is poured into the molten aluminum mold; (5) cooling and molding: cooling and molding the molten aluminum in the molten aluminum mold; and (6) taking out a finished product. In this way, the molten aluminum pouring quality can be improved, hollow bubbles in molten aluminum are removed in multiple modes, and the purity is higher when the molten aluminum is poured into an aluminum ingot.

Description

Technical Field

[0001] The present invention relates to the field of metal processing, and particularly to a method for casting high-purity aluminum liquid. Background Art

[0002] Aluminum liquid refers to the liquid aluminum raw material obtained by chemically and electrolytically treating aluminum hydrate extracted from aluminum ore. It is generally light yellow or grayish white and has high thermal conductivity and electrical conductivity.

[0003] The production of aluminum liquid goes through several processes, including ore dressing, smelting, leaching, electrolysis, etc., and requires reaction conditions of high temperature, high pressure, and large energy consumption. The aluminum liquid production industry has high requirements for aspects such as electricity and water resources, so it requires national attention.

[0004] Aluminum liquid is an important part of the raw material industry and is widely used in the following fields: 1. Aluminum product production: Aluminum liquid can be processed into aluminum alloy products (such as die-casting, extrusion, stamping), such as wire and cable, automotive parts, building doors and windows, imported and exported water tanks, etc.

[0005] 2. Construction field: Due to its high strength and excellent corrosion resistance, aluminum liquid has become an important building material in the construction field, such as building exterior panels, aluminum alloy doors and windows, and decoration materials.

[0006] 3. Automobile and ship production: As the raw material of aluminum products, aluminum liquid is widely used in the automobile and ship manufacturing industries, such as vehicle engines, body parts, kitchen utensils, ship hulls, etc.

[0007] 4. Energy field: In solar and wind power generation systems, the components made from aluminum liquid are less well-known. These components are not only lightweight and easy to install, but also have a long service life.

[0008] The casting method of aluminum liquid is very important, and a good casting method can improve the quality of aluminum products. Summary of the Invention

[0009] The main technical problem to be solved by the present invention is to provide a method for casting high-purity aluminum liquid, which can improve the casting quality of aluminum liquid and remove the air bubbles in the aluminum liquid by various means.

[0010] To solve the above technical problem, one technical solution adopted by the present invention is: to provide a method for casting high-purity aluminum liquid, including the following steps: (1) Pour aluminum liquid into an aluminum liquid pool. (2) Remove the gas from the aluminum liquid in the above aluminum liquid pool in various ways. (3) Prepare the mold by placing the aluminum liquid mold in advance at the casting station. (4)Pour the molten aluminum in the molten aluminum pool into the molten aluminum mold; (5)Cool and form, allowing the molten aluminum in the molten aluminum mold to cool and form; (6)Take out the finished product.

[0011] In a preferred embodiment of the present invention, the degassing step in step (2) includes at least two methods.

[0012] In a preferred embodiment of the present invention, the degassing step in step (2) includes using a stirrer to stir, and the molten aluminum in the molten aluminum pool is stirred in a spiral manner.

[0013] In a preferred embodiment of the present invention, the degassing step in step (2) includes continuously pressing down and depositing the molten aluminum in the molten aluminum pool and reciprocatingly lifting it up by using a pressing plate to press down.

[0014] In a preferred embodiment of the present invention, the degassing step in step (2) includes performing insertional oscillation and immersion displacement oscillation at different positions by using a grid plate, and the grid plate is composed of vertical plates with a grid-like intersection to form a multi-cell shape.

[0015] The beneficial effects of the present invention are: The present invention can improve the quality of molten aluminum pouring, remove the air bubbles in the molten aluminum by various methods, and make the purity of the molten aluminum higher when it is poured into aluminum ingots. Embodiment

[0016] Next, the technical solutions in the embodiments of the present invention will be described clearly and completely. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of 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 belong to the scope of protection of the present invention.

[0017] Embodiment 1 A method for pouring high-purity molten aluminum, comprising the following steps: (1) Pour the molten aluminum into the molten aluminum pool; (2) Degas the molten aluminum, degas the molten aluminum in the above-mentioned molten aluminum pool in various ways. The steps include using a stirrer to stir, and the molten aluminum in the molten aluminum pool is stirred in a spiral manner. The steps include continuously pressing down and depositing the molten aluminum in the molten aluminum pool and reciprocatingly lifting it up by using a pressing plate to press down. The steps include performing insertional oscillation and immersion displacement oscillation at different positions by using a grid plate, and the grid plate is composed of vertical plates with a grid-like intersection to form a multi-cell shape; (3) Prepare the mold, place the molten aluminum mold in advance at the pouring station; (4) Pour the molten aluminum, pour the molten aluminum in the molten aluminum pool into the molten aluminum mold; (5) Cool and form, allowing the molten aluminum in the molten aluminum mold to cool and form; (6) Take out the finished product. The present invention can improve the quality of molten aluminum pouring, remove the air bubbles in the molten aluminum by various methods, and make the purity of the molten aluminum higher when it is poured into aluminum ingots.

[0018] The above are only embodiments of the present invention, and do not thus 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 similarly be included within the patent protection scope of the present invention.

Claims

1. A method for pouring high-purity aluminum liquid, characterized in that It includes the following steps: (1) Pour molten aluminum into the molten aluminum pool; (2) Degas the molten aluminum, and degas the molten aluminum in the above-mentioned molten aluminum pool in various ways; (3) Prepare the mold by placing the aluminum liquid mold in advance at the casting station; (4) Cast the molten aluminum, and pour the molten aluminum in the molten aluminum pool into the aluminum liquid mold; (5) Cool and form, allowing the molten aluminum in the aluminum liquid mold to cool and form; (6) Take out the finished product.

2. The high-purity aluminum liquid casting method according to claim 1, characterized in that The degassing step in step (2) includes at least two methods.

3. The high-purity aluminum liquid casting method according to claim 2, characterized in that The degassing step in step (2) includes stirring with a mixer, and the molten aluminum in the molten aluminum pool is stirred in a spiral manner.

4. The high-purity aluminum liquid casting method according to claim 2, wherein The degassing step in step (2) includes continuously pressing down and lifting up the molten aluminum in the molten aluminum pool reciprocally by using the pressing plate pressing method.

5. The method for pouring high-purity aluminum liquid according to claim 2, characterized in that, The degassing step in step (2) includes inserting and oscillating at different positions and performing submerged displacement oscillation by using a grid plate, and the grid plate is composed of vertical plates with a grid-like intersection to form a multi-cell shape.