Electromagnetic casting process for 5754 aluminum alloy

A technology of electromagnetic casting and aluminum alloy, applied in metal rolling and other directions, can solve the problems of composition segregation, uneven structure of slab, uneven crystallization, etc., and achieve the effect of increasing content, improving quality, and suppressing turbulence.

Inactive Publication Date: 2012-08-22
江苏鑫皇铝业发展有限公司
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  • Abstract
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  • Application Information

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Problems solved by technology

Therefore, when the casting-rolling method is used to produce the alloy slab, there is uneven crystalliz

Method used

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Embodiment Construction

[0046] It includes the following steps: material preparation→batching→feeding→melting→stirring→slag removal→primary refining→sampling→composition adjustment→carbon tetrachloride refining→adding beryllium→adding magnesium ingots→secondary refining→slag removal→converter→holding furnace Refining with argon gas→degassing→filtering→casting and rolling→coiling→cooling→packaging, it is characterized in that the casting and rolling is electromagnetic oscillation casting and rolling, and the electromagnetic oscillation casting and rolling includes the following steps: the launder must be preliminarily Heat, the temperature is above 300°C, to remove the moisture in the launder;

[0047] Preheat the roll before the vertical plate, the preheating time is 1 hour;

[0048] Start the casting-rolling machine, and adjust the speed of the casting-rolling machine to 1200-1800mm / min;

[0049] After the temperature of the front box reaches the set value, adjust the casting and rolling speed to 4...

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Abstract

The invention discloses an electromagnetic casting process for 5754 aluminum alloy, which belongs to the field of aluminum alloy plate production and comprises the following steps: material preparation, material dosing, material adding, melting, stirring, slag removing, primary refining, sampling, component adjusting, carbon tetrachloride refining, beryllium adding, magnesium ingot adding, secondary refining, slag removing, furnace revolving, argon introducing and refining in a maintaining furnace, gas removing, filtering, cast rolling, reeling, cooling and packaging. The electromagnetic casting process has the advantages of effectively restraining turbulence and flow evenness in a cast rolling area of 5754 aluminum alloy melt in the cast rolling process due to a direct current magnetic filed, improving temperature distribution evenness of the 5754 aluminum alloy melt, disturbing solidified balance organization due to oscillation effect in the solidified process, improving content of alloy element in crystal and greatly improving quality of a cast rolling base.

Description

technical field [0001] The invention relates to a 5754 aluminum alloy electromagnetic casting process, which belongs to the field of aluminum alloy plate production. Background technique [0002] The 5754 alloy belongs to the aluminum-magnesium series alloy, which is a typical alloy in the 5 series aluminum alloy. 5754 aluminum alloy has medium and high strength, excellent corrosion resistance, good plasticity and easy processing performance, and cannot be strengthened by heat treatment. 5754 alloy plates in different states are mainly used to make welded structural parts, and are widely used in automobile manufacturing, tank manufacturing and shipbuilding. [0003] There are some technical difficulties in the internal structure and composition segregation of 5754 aluminum alloy blanks produced by casting and rolling methods: the difference between 5754 alloys and other aluminum alloys produced by ordinary casting and rolling methods is that the crystallization interval is ...

Claims

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Application Information

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IPC IPC(8): B22D11/06B22D11/115B21B1/46C22C1/00C22C21/00
Inventor 冯彦海王志诚马昭洲
Owner 江苏鑫皇铝业发展有限公司
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