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A method for casting aluminum alloy flat ingots of different specifications at one time

A technology of aluminum alloy and aluminum alloy melt, which is applied in the field of aluminum alloy manufacturing, can solve the problems that small orders cannot meet the full furnace production, the impact on production efficiency and economic benefits, and increase the probability of product defects, so as to improve the quality defects of flat ingots, Reduces processing steps and prevents casting cracks

Active Publication Date: 2019-04-05
广西南南铝加工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the capacity of aluminum alloy melting furnaces and holding furnaces is generally tens of tons or even more than 100 tons, resulting in small orders that cannot meet the full furnace production
Usually, multiple small orders are put together for production, and several orders are combined into one furnace to cast aluminum alloy flat ingots with the largest specifications. The multi-cast ingots cause a backlog of metal, and the combined production requires additional processes and increases the probability of product defects. Affect both production efficiency and economic benefits

Method used

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  • A method for casting aluminum alloy flat ingots of different specifications at one time
  • A method for casting aluminum alloy flat ingots of different specifications at one time
  • A method for casting aluminum alloy flat ingots of different specifications at one time

Examples

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Effect test

Embodiment 1

[0030] Hybrid casting of 5083 alloys with specifications of 2570×550 mm and 2270×550 mm:

[0031] (1) Ingredients: Si: 0.02-0.20% by mass percentage, Fe: 0.10-0.35%, Cu: 0.01-0.10%, Mn: 0.50-0.85%, Mg: 4.20-4.80%, Cr: 0.10-0.20% , Zn: 0.01-0.25%, the balance is aluminum, weigh aluminum ingots for remelting, return materials, pure Mg ingots, pure Zn ingots, Al-Si master alloys, Al-Fe master alloys, Al-Cu Master alloy, Al-Mn master alloy, Al-Cr master alloy quality, strictly control the amount of aluminum ingots for remelting with a purity of 99.70% and the amount of 5xxx alloy return material, and the amount of 5xxx alloy return material accounts for 0-60% of the total furnace input ;

[0032] (2) Melting: Put the ingredients into a 55T melting furnace, stir and melt with an electromagnetic stirrer at 690-750°C, after all the alloys are put into the furnace, when the melting temperature reaches 710-740°C, melt again for 5-20 minutes;

[0033] (3) Composition adjustment: Take ...

Embodiment 2

[0042] Mixed casting 1480×520mm, 1780×520, 1400×580 and 1700×580 specifications 3003 alloy:

[0043] (1) Ingredients: Si: 0.02-0.60% by mass percentage, Fe: 0.10-0.40%, Cu: 0.01-0.18%, Mn: 1.10-1.40%, Mg: 0.01-0.04%, Zn: 0.01-0.09% , the balance is aluminum, weigh aluminum ingots for remelting, return materials, pure Mg ingots, pure Zn ingots, Al-Si master alloys, Al-Fe master alloys, Al-Cu master alloys, Al-Mn master alloys Alloy, Al-Cr intermediate alloy quality, precise control of the amount of remelting aluminum ingots with a purity of 99.70% and 3xxx series alloy return materials, the amount of 3xxx series alloy return materials accounts for 0-60% of the total furnace input;

[0044] (2) Melting: Put the ingredients into a 55T melting furnace, stir and melt with an electromagnetic stirrer at 690-750°C, after all the alloys are put into the furnace, when the melting temperature reaches 710-740°C, melt again for 5-20 minutes;

[0045] (3) Composition adjustment: Take the m...

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Abstract

The invention discloses a method for casting flat aluminum alloy ingots of different specifications once, and relates to the technical field of manufacturing of aluminum alloy. According to the method for casting flat aluminum alloy ingots of different specifications once, molten aluminum filling and the liquid level of a crystallizer are regulated and controlled reasonably by independently regulating and controlling the water flow and the water pressure of a casting surface, and thus mixed casting of high-quality flat aluminum alloy ingots with the width variation within 350 mm and the thickness variation within 100 mm is achieved; the number of machining procedures is reduced, the production efficiency is improved, the rate of finished products is increased, and order demands of different customers can be met; and through refining, standing and filtration and purification of elements of flat ingots, quality defects of flat ingots are reduced, and the success rate of casting is increased. By adoption of the method for casting flat aluminum alloy ingots of different specifications once, and casting defects such as casting cracks, surface segregation humps and rough grains are effectively prevented.

Description

technical field [0001] The invention belongs to the technical field of aluminum alloy manufacturing, and in particular relates to a method for one-time casting of aluminum alloy flat ingots of different specifications. Background technique [0002] Aluminum alloy slabs are the main raw materials for high-quality aluminum alloy plates, strips and foils. With the development of the economy, my country's demand for high-quality aluminum alloy plates, strips, and foils has increased, and the demand for aluminum alloy flat ingots has also increased. In terms of slab production, the introduction of equipment technology is relatively fast, while the development of process technology requires a gradual process. Due to the influence of various parameters in the process technology, the dimensions and specifications of the aluminum alloy slabs cast from the same furnace must be consistent to avoid defects such as aluminum leakage, cracking, and loose internal structure of the slab dur...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C1/06C22C1/03C22F1/04B22D11/18B22D11/22C22C21/08C22C21/00
CPCB22D11/18B22D11/22C22C1/026C22C1/03C22C1/06C22C21/00C22C21/08C22F1/04
Inventor 任月路陈仁桂何宇棋庞宇赵解扬黄景霖蓝东华黄金宁雷翊君徐燕萍黄程毅
Owner 广西南南铝加工有限公司
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