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A pre-smelting process for electrolytic aluminum liquid

A technology for electrolysis of molten aluminum and pre-smelting, applied in the field of aluminum processing, can solve problems such as low cost, low pollution, high pollution, etc., and achieve the effects of reducing the pressure of subsequent processing, improving cleanliness, and reducing slag and burning loss.

Active Publication Date: 2021-10-08
石河子众和新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] The purpose of the present invention is to provide a pre-smelting process of electrolytic aluminum liquid, which is mainly aimed at the high cost and high pollution problems that the current high-quality aluminum alloy production cannot directly use electrolytic aluminum liquid as raw material, but uses secondary remelted aluminum ingots for production , by pre-smelting the electrolytic aluminum liquid in the transfer vacuum bag, pre-adjusting the composition, reducing the amount of gas and slag, and improving the cleanliness of the melt, so that it can be directly used in the production of high-quality aluminum alloys, with high production efficiency and low pollution ,low cost

Method used

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  • A pre-smelting process for electrolytic aluminum liquid
  • A pre-smelting process for electrolytic aluminum liquid
  • A pre-smelting process for electrolytic aluminum liquid

Examples

Experimental program
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Effect test

Embodiment 1

[0066] Example 1: 100% electrolytic aluminum solution production of anodic oxidation 6063 alloy rod

[0067] (1) The vacuum package has an aluminum capacity of 8T. After the electrolyte aluminum liquid enters a vacuum package, the test residue content is 0.28 mm. 2 / kg, hydrogen content was 0.39 ml / 100g. After 160kg of aluminum silicon (20%), after the bottom of the vacuum packet was blown into high purity argon, the flow rate was 12 l / h, the pressure was 0.6 MPa.

[0068] (2) After 15 min, the intermediate alloy is completely melted, and the cover is arranged on the surface of the aluminum melt, and the gas flow peak is 5 l / h, the gas flow rate is 0.5 MPa, the time period is 8 minutes, and the cycle 3 Second-rate.

[0069] (3) Also stand for 5 min and remove the cover.

[0070] Sampling test residue content is 0.13mm 2 / kg, the hydrogen content was 0.23 ml / 100g. After the pre-melting refining, the Si content was 0.39%, and the component fine tuning after transferring th...

Embodiment 2

[0071] Example 2: Predicted 100% electrolytic aluminum liquid production high-end wire 5183 alloy rod

[0072] (1) The vacuum package used each time the aluminum capacity is 6T, and the electrolytic aluminum liquid enters the vacuum package, first test the residue content of 0.31 mm. 2 / kg, hydrogen content was 0.38 ml / 100g. After 250 kg of the magnesium ingot, it was started to blow high purity argon gas from the bottom of the vacuum pump, and the flow rate was 10 l / h, and the pressure was 0.6 MPa.

[0073] (2) After 15 minutes, the intermediate alloy is completely melted, and the cover is arranged on the surface of the aluminum melt, and the gas flow rate is 4 L / h, the gas flow peak is 0.5MPa, the time period is 6 minutes, and the cycle 4 is 6 minutes according to the cycle peak. Second-rate.

[0074] (3) Also stand for 5 min and remove the cover. Sampling test residue content is 0.14mm 2 / kg, the hydrogen content was 0.21 mL / 100g. After the pre-melting refining, the Mg ...

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Abstract

The invention relates to a pre-smelting process for electrolytic aluminum liquid. A pre-smelting process for electrolytic aluminum liquid, comprising the following steps: (1) pre-alloying treatment: after the electrolytic aluminum liquid enters the transfer vacuum bag, it is pre-alloyed Blow in inert gas until the master alloy is completely melted; (2) Gas blowing purification treatment: After the master alloy is completely melted, first place a covering agent on the surface of the melt, and then adjust the flow and pressure of the inert gas. Periodic mountain peak style that gradually increases and then gradually decreases; (3) After blowing and purifying, let it stand for 2-5 minutes, and remove the covering agent. The present invention pre-smelts the electrolytic aluminum liquid in the transfer vacuum bag, pre-adjusts the composition, reduces the amount of gas and slag, and improves the cleanliness of the melt, so that it can be directly used in the production of high-quality aluminum alloys, with high production efficiency and low pollution Small and low cost.

Description

Technical field [0001] The present invention belongs to the field of aluminum processing, and more particularly to a pre-melting process of an electrolytic aluminum solution. Background technique [0002] With the continuous advancement of technology, the market's quality requirements of aluminum alloys are getting higher and higher, and customer demand is moving towards thin-walled, high-strength, easy processing trend, and special useful high-quality aluminum alloys are gradually attached to the market. Favure, this high-quality demand is also more stringent in the clean level of the casting before the aluminum alloy. For example, the high-end wire material is strictly required for the gas content and residue content of the product, and the splash is severe during the welding process, and the weld is poor; the anodized aluminum alloy used in 3C electronics shell and car decoration strip is inclusive The inclusion of the content of the content is high, and the micro-size (<10...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C1/03C22C21/00
CPCC22C1/026C22C1/03C22C21/00
Inventor 王欢
Owner 石河子众和新材料有限公司
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