Method for producing smaller-flakiness-ratio aluminum alloy slab ingot with adjustable crystallizer

Abstract

The invention relates to the technical field of aluminum alloys, in particular to a method for producing a smaller-flakiness-ratio aluminum alloy slab ingot with an adjustable crystallizer. A casting method comprises the following steps of: electromagnetically stirring an aluminum alloy molten metal liquid with a 50t smelting furnace, transferring into a 50t standing furnace, and periodically starting air-permeable refining; filtering online; and treating with a graphite lining adjustable crystallizer liquid level control technology, a crystallizer differential laser liquid level sensing technology and a low-liquid-level (LHL) casting technology to cast a smaller-flakiness-ratio large-specification aluminum alloy slab ingot. The method has the advantages that: 1, the product quality is consistent with the national standard and the user quality requirement, the product size is consistent with the design and user requirement, the product appearance is consistent with the design and user requirement, and the internal product quality is consistent with the design and user requirement; 2, the equipment utilization ratio is increased, the comprehensive product yield is increased, and the production cost is reduced; 3, the market is further expanded, and the enterprise competitiveness is enhanced; and 4, the yield is increased, and considerable economic benefit is created for enterprises. The method is suitable for adjustable crystallization with a graphite ring serving as a lining.

Description

technical field [0001] The invention relates to the technical field of aluminum alloys, in particular to a method for producing an aluminum alloy flat ingot with a small aspect ratio by using an adjustable crystallizer. Background technique [0002] The specification of aluminum alloy square ingots from small to large, and the width-thickness ratio from large to small are the needs of the development of casting technology, and it is also an important way to increase production capacity and reduce processing costs. With the improvement of equipment capacity of aluminum alloy slab ingot processing enterprises, the demand for (thick, wide) large-size slab ingot continues to increase. However, due to the lack of technology and equipment capabilities of rough slab manufacturers, the supply capacity of large-size slabs is obviously insufficient. At present, most enterprises are limited to the production of flat ingots with a large width-to-thickness ratio in fixed molds, and can ...

AI Technical Summary

Problems solved by technology

This method has low production efficiency, low equipment utilization rate, high energy consumption, and low comprehensive yield, which cannot meet user needs.

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