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Aluminum alloy melt purifying device

A technology of aluminum alloy melt and purification device, which is applied in the field of aluminum alloy processing, can solve problems such as high hydrogen content and poor quality of ingots, and achieve the goals of increasing the contact area and time, improving the quality of ingots, and improving the effect of degassing and purification Effect

Inactive Publication Date: 2017-05-24
SOUTHWEST ALUMINUM GRP
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Problems solved by technology

The original purification device includes static furnace and TS rotary rotor degassing equipment, etc. Among them, the original TS degassing equipment is a single rotary rotor metal refining device, which conducts online refining treatment on the melt. After the treatment, the 7XXX series aluminum alloy is melted The body hydrogen content is about 0.125ml / 100g, and the hydrogen content is high, which leads to poor ingot quality

Method used

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  • Aluminum alloy melt purifying device

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Embodiment Construction

[0019] The core of the invention is to provide an aluminum alloy melt purification device to improve the quality of ingots.

[0020] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below in conjunction with embodiments.

[0021] In a specific embodiment, the aluminum alloy melt purification device provided by the specific embodiment of the present invention includes a static furnace and a SNIF online degassing device. The SNIF online degassing device includes a first rotor and a second rotor arranged in parallel with the first rotor. The rotation speed of the first rotor is 450rpm-600rpm, and the argon flow rate on the first rotor is 4.5m 3 / h-6.0m 3 / h. The rotational speed of the second rotor is 300rpm-400rpm, and the flow rate of argon gas on the second rotor is 2.8m3 / h-3.2m3 / h. Wherein, in a specific solution, preferably, the rotational speed of t...

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Abstract

The invention discloses an aluminum alloy melt purifying device. The aluminum alloy melt purifying device comprises a holding furnace and an SNIF online degassing device. The SNIF online degassing device comprises a first rotor and a second rotor which is arranged in parallel to the first rotor; the rotating speed of the first rotor is 450-600rpm, the argon flow on the first rotor is 4.5-6.0m<3> / h, the rotating speed of the second rotor is 300-450rpm, the argon flow on the second rotor is 2.8-3.2m<3> / h. According to the aluminum alloy melt purifying device disclosed by the invention, a single-rotating rotor type metal refining device of TS degassing equipment is replaced by double rotor equipment of the SNIF online degassing device, so that the contact area and the contact time of air bubbles and melts are increased to improve the degassing and purifying effect when the melts pass through the SNIF online degassing device, and furthermore, the quality of ingots is improved.

Description

technical field [0001] The invention relates to the technical field of aluminum alloy processing, in particular to an aluminum alloy melt purification device. Background technique [0002] The high strength and toughness indicators of aluminum alloy materials require strict control of hydrogen, non-metallic inclusions, alkali metals and alkali metal elements, and Fe, Si impurity content in the melt, among which, the hydrogen content and oxide film defects have great influence on the structure of the finished ingot. The compactness and even the flaw detection fracture performance of processed materials have a great influence. [0003] In order to improve the quality of the ingot, the melt is purified through an aluminum alloy melt purification device. The original purification device includes static furnace and TS rotary rotor degassing equipment, etc. Among them, the original TS degassing equipment is a single rotary rotor metal refining device, which conducts online refini...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B9/05C22C21/00C22C1/02
CPCC22B9/05C22C1/026C22C21/00
Inventor 向曙光
Owner SOUTHWEST ALUMINUM GRP
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