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Method for casting and rolling aluminum alloy plate

An aluminum alloy plate, casting and rolling technology, applied in metal rolling and other directions, can solve problems such as horseshoe cracks, affecting product quality, sticking rolls, etc., to reduce the time of hot rolling and cold rolling, shorten the production cycle, and reduce production costs Effect

Inactive Publication Date: 2012-01-18
YONGJIE NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention provides a method for casting and rolling aluminum alloy plates, which mainly solves the problem that the common aluminum alloy strips in the prior art are basically produced by hot rolling, and the cost is high. Production, due to the lack of multiple refining, it will cause technical problems such as vertical board failure, sticking rollers and horseshoe-shaped cracks, affecting product quality, etc.

Method used

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  • Method for casting and rolling aluminum alloy plate
  • Method for casting and rolling aluminum alloy plate

Examples

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Effect test

Embodiment 1

[0030] Embodiment 1: a kind of cast-rolling method of aluminum alloy plate of this example is used for producing 3004 aluminum alloy plate, and its steps are:

[0031] a. Put the leftovers into the melting furnace first, and then put into the aluminum ingot. The composition of the leftovers and the ratio of aluminum is: Si: 0.1%, Fe: 0.4%, Cu: 0.1%, Mn: 1.0%, and the balance is Al, and the melting is almost completed. Add the alloying agent according to the composition ratio. The ratio of the alloying agent composition and aluminum is: Si: 0.15%, Fe: 0.56%, Cu: 0.15%, Mn: 1.15%, Mg: 0.9%, after standing for 30 minutes Add 2.5kg of refining agent for refining, and adjust the pressure of liquid nitrogen at the same time to ensure that the height of the molten aluminum blown by liquid nitrogen does not exceed 15cm. The refining time is controlled at 15 minutes. After refining is completed and slag is removed, smelting is carried out. The smelting time is 4 hours. The temperature...

Embodiment 2

[0034] Embodiment 2: a kind of cast-rolling method of aluminum alloy plate of this example is used for producing 3004 aluminum alloy plate, and its steps are:

[0035] a. Put the leftover material into the melting furnace first, and then put into the aluminum ingot. The ratio of the leftover material to aluminum is: Si: 0.12%, Fe: 0.45%, Cu: 0.12%, Mn: 1.05%, the balance is Al, and the melting is almost completed. Add the alloying agent according to the composition ratio. The ratio of the alloying agent composition and aluminum is: Si: 0.2%, Fe: 0.63%, Cu: 0.2%, Mn: 1.25%, Mg: 1.1%, after standing for 30 minutes Add 3.5kg of refining agent for refining, and adjust the pressure of liquid nitrogen at the same time to ensure that the height of the molten aluminum blown by liquid nitrogen does not exceed 15cm. The refining time is controlled at 18 minutes. After refining is completed and slag is removed, smelting is carried out. The smelting time is 4.5 hours. The temperature is ...

Embodiment 3

[0038] Embodiment 3: a kind of cast-rolling method of aluminum alloy plate of this example is used for producing 3004 aluminum alloy plate, and its steps are:

[0039] a. Put the leftovers into the smelting furnace first, and then put into the aluminum ingot. The ratio of the leftovers to aluminum is: Si: 0.15%, Fe: 0.5%, Cu: 0.15%, Mn: 1.1%, the balance is Al, and the melting is almost completed. Add the alloying agent according to the composition ratio. The ratio of the alloying agent composition and aluminum is: Si: 0.25%, Fe: 0.68%, Cu: 0.23%, Mn: 1.3%, Mg: 1.2%, after standing for 30 minutes Add 4kg of refining agent for refining, and adjust the pressure of liquid nitrogen at the same time to ensure that the height of liquid aluminum blown by liquid nitrogen does not exceed 15cm. The refining time is controlled at 20 minutes. After refining is completed and slag is removed, smelting is carried out. The smelting time is 5 hours, and the smelting temperature 765°C, then go...

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Abstract

The invention relates to a method for manufacturing sheet metal, in particular to a method for casting and rolling an aluminum alloy plate which is used for producing a 3004 aluminum alloy plate, which mainly solves the technical problems that: in the prior art, a common aluminum alloy strip basically produced by adopting a hot rolling mode has high cost, but if the aluminum alloy strip is produced by a casting and rolling method, the product quality and the like are influenced by vertical plate failure, roll coating and hippocrepiform cleft due to lack of multiple refining times. The method comprises the following steps of: putting scrap materials and aluminum ingots, smelting, refining for multiple times, standing, degasing, filtering, casting and rolling, inspecting and outputting a finished product.

Description

technical field [0001] The invention relates to a method for manufacturing metal plates, in particular to a casting and rolling method for producing 3004 aluminum alloy plates. Background technique [0002] There are two methods commonly used in the current industry to produce aluminum strips. One method is hot rolling. First, a large flat ingot is cast. The flat ingot is milled, cut, heated, and then sent to a hot rolling mill for rolling. The production method requires large investment, high energy consumption and complicated process, which cannot be realized by ordinary aluminum processing enterprises; the other is to adopt the continuous casting and rolling method, adopting the production mode of rolling while casting, with small investment, low energy consumption and relatively simple process , are widely used in aluminum processing enterprises. 3004 aluminum alloy belongs to the Al-Mg-Mn series, the main alloy elements are Mn and Mg, it has high strength, corrosion re...

Claims

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Application Information

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IPC IPC(8): B21B1/46
Inventor 沈建国
Owner YONGJIE NEW MATERIAL CO LTD
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