Method and device for producing A356 aluminum alloy by belt casting

Abstract

The invention discloses a method and a device for producing A356 aluminum alloy by belt casting. The prepared A356 aluminum alloy liquid is subjected to furnace refining and on-line degassing filtration, and then is continuously poured into a crystallizer of a casting machine; and the periphery of the crystallizer is continuously filled with cooling water for crystallization. A crystalline region is divided into five sections from the higher temperature to the lower temperature, and a cooling region is divided into twelve regions according to different flow rates of the cooling water distributed at the periphery of the crystallizer. The belt casting machine comprises a casting machine, a straightening machine, a blank guiding machine, a rolling code machine, a roller shearing machine, and the like, which are arranged in turn; and an approach bridge is arranged between the casting machine and the straightening machine. Compared with the prior art, the method and the device have the advantages of simple production equipment, less investment, short production flow, low production cost, advanced technology, low gas-slag content in the products, low composition segregation, stable product quality, and excellent production flexibility, quickly adjustable product types, and safe working environment.

Description

technical field [0001] The invention relates to the technical field of aluminum processing, in particular to a method and equipment for producing A356 aluminum alloy by belt-type continuous casting. Background technique [0002] At present, there are only two production methods of A356 cast aluminum alloy in China: horizontal mold ingot casting and shaft vertical casting. Horizontal mold ingot casting equipment is simple and requires less investment, but the product has high gas slag content, large composition segregation, and poor quality stability, which cannot meet the requirements of subsequent processing and production of high-end products. Shaft vertical casting equipment requires large investment, high technical requirements and production costs. Although the product quality is good, the production process is complicated, the operating environment has great potential safety hazards, and the production flexibility is poor. The production process is: smelting→refining→c...

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Problems solved by technology

Horizontal mold ingot casting equipment is simple and requires less investment, but the product has high gas slag content, large composition segregation, and poor quality stability, which cannot meet the requirements of subsequent processing and production of high-end products.

Shaft vertical casting equipment requires large investment, high technical requirements and production costs. Although the product quality is good, the production process is complicated, the operating environment has great potential safety hazards, and the production flexibility is poor. The production process is: smelting→refining→casting rod→hanging rod →Saw cutting→Inspection→Packing→Storage

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