Aluminum alloy smelting process

A technology of aluminum alloy and smelting tools, which is applied in the field of aluminum alloy smelting, can solve problems such as ambiguity and affecting production efficiency, and achieve the effects of reducing adverse effects and improving mechanical properties and corrosion resistance

Inactive Publication Date: 2018-12-28
HAIMEN HUHAI NONFERROUS CASTING
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Smelting is a crucial link in aluminum alloy casting, but the values ​​of liquid refining and degassing, liquid deterioration temperature, etc. Production efficiency, product delivery rate

Method used

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  • Aluminum alloy smelting process

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Embodiment Construction

[0019] The following examples can enable those skilled in the art to understand the present invention more comprehensively, but the present invention is not limited to the scope of the described examples.

[0020] An aluminum alloy smelting process has the following steps:

[0021] S1: Aluminum alloy smelting tool preparation: clean the oxide skin and debris on the surface of the ladle, overflow pipe and spoon used in the smelting process, and evenly spread it on the surface of the ladle, overflow pipe and spoon Apply paint.

[0022] S2: Cleaning of the crucible: Clean and remove the dross and oxide layer on the surface of the crucible that needs to melt aluminum alloy, heat the crucible to 250°C-300°C, and then evenly spray paint on the inner wall of the crucible.

[0023] S3: Aluminum ingot treatment: remove the aluminum rust, oil stain and dust on the surface of the aluminum ingot for later use.

[0024] S4: Melting of aluminum ingots: Add the processed aluminum ingots an...

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Abstract

The invention relates to an aluminum alloy smelting process. The aluminum alloy smelting process is characterized by comprising the following steps of S1, preparing an aluminum alloy smelting tool; S2, cleaning a crucible; S3, carrying out aluminum ingot treatment; S4, smelting aluminum ingots; S5, carrying out treatment of a refining agent and a modifying agent; S6, adding the refining agent; S7,adding the modifying agent; S8, sampling and testing; and S9, casting products; and the surface of an appliance is treated before melting, temperature is controlled in the melting process, the refining agent is added in three times and is used as an additive, and a small amount of inert gas generated in the melting process can effectively bring tiny nonmetallic inclusions in a melt body to the liquid surface to easily react with oxygen, hydrogen and the like, so that roles of dehydrogenation, deoxidation, descaling and the like can be realized, and aluminum liquid is purified. In the meltingprocess, the modifying agent is added to promote the nucleation of metal liquid and change the crystal growth process, so that the mechanical property and corrosion resistance of aluminum alloy obtained according to the aluminum alloy smelting process are greatly improved.

Description

technical field [0001] The invention relates to the field of aluminum alloy melting, in particular to an aluminum alloy melting process. Background technique [0002] Aluminum alloy is a general term for alloys based on aluminum. The main alloying elements are copper, silicon, magnesium, zinc or manganese, and the secondary alloying elements are nickel, iron, titanium, chromium or lithium. Aluminum alloy has good processability, especially hypoeutectic silicon-aluminum alloy, which not only has good processability, but also has light specific gravity, beautiful surface and corrosion resistance, good casting performance, and good comprehensive mechanical properties of products, which can be used to make various forms of parts. Aluminum and its alloys have been favored since ancient times because of their excellent mechanical properties, corrosion resistance, and formability, and their low density of 2.17g / cm2 has been widely used in many fields. As the main material of auto ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C1/02C22C1/06C22C21/02C04B28/26
CPCC04B28/26C04B2111/00482C22C1/026C22C1/06C22C21/02C04B14/042
Inventor 屈汉平朱林姜永强俞伟冲宋玮许丽英
Owner HAIMEN HUHAI NONFERROUS CASTING
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