Recovery method for aluminum lithium alloy processing chips

Abstract

The invention discloses a recovery method for aluminum lithium alloy processing chips. The recovery method comprises the steps that 1) pure aluminum chips in preset amount are added into an inductionfurnace containing inert gas to be molten; 2) after melting of the pure aluminum chips is completed and the preset temperature is reached, the aluminum lithium alloy waste chips in preset amount are added to be molten to form an aluminum-lithium alloy melt; 3) the aluminum-lithium alloy melt is refined and is subjected to slag treatment; and 4) the aluminum-lithium alloy melt is subjected to casting mould pouring to form storable waste. Through the above technology method, an aluminum-lithium alloy is added into the pure aluminum liquid molten in the induction furnace, the burning of metal canbe greatly reduced, the poured waste is stored and returns a furnace to be used, and the purpose of regeneration is achieved.

Description

technical field [0001] The invention relates to the technical field of metal processing, in particular to a method for recycling aluminum-lithium alloy processing scraps. Background technique [0002] Lithium is a particularly active gold element that is easily oxidized. The melting of aluminum-lithium alloys is also very different from that of ordinary aluminum alloys. It must be isolated from the air in the molten state, otherwise it will be continuously oxidized and burned. And the processing chips of aluminum-lithium alloy cannot be directly returned to the furnace for treatment. First, the burning loss is very large, and second, it is easy to pollute the quality of the melt. At present, there is no good treatment method for aluminum-lithium alloy processing chips. Generally, they can only be piled up for a long time, and eventually oxidized, thus losing their use value. [0003] Therefore, how to effectively recycle the processing waste of aluminum-lithium alloy and im...

AI Technical Summary

Problems solved by technology

[0002] Lithium is a particularly active gold element that is easily oxidized. The melting of aluminum-lithium alloys is also very different from that of ordinary aluminum alloys. It must be isolated from the air in the molten state, otherwise it will be continuously oxidized and burned. And the processing chips of aluminum-lithium alloy cannot be directly returned to the furnace for treatment. First, the burning loss is very large, and second, it is easy to pollute the quality of the melt.

At present, there is no good treatment method for the processing chips of aluminum-lithium alloys. Generally, they can only be piled up for a long time, and finally oxidized, thus losing their use value.

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