Aluminum alloy refining device

Abstract

The invention discloses an aluminum alloy refining device which comprises a refining rabbling furnace, a base and a tail gas treatment device, wherein the refining rabbling furnace and the tail gas treatment device are fixedly mounted at the upper end of the base; a rotary motor is fixedly mounted at the upper end of the refining rabbling furnace; a first bevel gear is arranged on an output shaft of the rotary motor; the first bevel gear is mutually engaged with a second bevel gear arranged at the upper end of a stirring shaft; the lower end of the stirring shaft penetrates through an upper top plate of the refining rabbling furnace and extends into the refining rabbling furnace; a stirring blade is fixedly mounted at the lower end of the stirring shaft; a charge hole is formed in one side, away from the rotary motor, at the upper end of the refining rabbling furnace; and the charge hole is in threaded connection with a sealing cover. According to the aluminum alloy refining device disclosed by the invention, a procedure is set in a touch control screen for automatically controlling solenoid valves to be opened or closed instead of manually controlling, so that labor intensity is reduced. The aluminum alloy refining device is high in practicability, and is easily popularized and used.

Description

technical field [0001] The invention relates to the technical field of smelting devices, in particular to an aluminum alloy refining device. Background technique [0002] The non-metallic inclusions in the aluminum alloy melt are not only brought in by the raw materials, but also compounds formed by the interaction between the metal and the furnace gas and other substances during the smelting process. At the same time, the aluminum alloy has gas absorption during heating and smelting, and will absorb H2; the existence of non-metallic inclusions such as oxides will destroy the continuity of the metal matrix, reduce the plasticity, toughness and corrosion resistance of the aluminum alloy, and make the metal The process performance and surface quality are worse. The hydrogen dissolved in the aluminum alloy will cause pores and looseness in the ingot, which will cause foaming and delamination of the processed product, and even cause hydrogen embrittlement in the product. There...

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Problems solved by technology

Therefore, the aluminum alloy melt is purified to reduce the non-metallic inclusions in the metal melt and remove the gas dissolved in the aluminum melt, especially hydrogen, so as to obtain a high-purity aluminum alloy melt and provide high-quality aluminum alloy for casting. Creating conditions for ingot casting is an important purpose of aluminum alloy smelting and a key step in the production of high-purity aerospace aluminum alloy materials; when producing high-purity aerospace aluminum alloy ingots, combined purification of furnace refining and on-line processing is required process, and refining in the furnace is an important part of the purification of aluminum alloy melts. During the refining process, it is necessary to inject powdered refining agents whose main components are chloride salts into the refining stirring furnace to react with molten aluminum. In the prior art, the main Manually controlling the switching of the valve increases the labor intensity, and at the same time reduces the refining effect; moreover, the harmful gas produced in the refining process of the existing aluminum alloy refining device is directly discharged to the outside, which deteriorates the working environment and harms the workers. It is harmful; at the same time, because the refining stirring furnace is a sealed structure during the smelting process, when the high-pressure nozzle continuously sprays chlorine salt into the refining stirring furnace, it will cause the pressure in the refining stirring furnace to increase and cause spraying, and the use has limitations

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