A kind of production method of large-diameter 6063 aluminum alloy round ingot billet

Abstract

The invention discloses a production method of a large diameter 6063 aluminum alloy round ingot casting billet comprising the chemical components by weight of 0.42%-0.44% of Si, 0.50%-0.55% of Mg, 0.005%-0.03% of Ti, 0-0.18% of Fe, 0-0.025% of Zn and the balance of A. The method omits remelting process, reduces the cost of aluminum per ton, greatly reduces aluminum burning loss, reduces greenhouse gas and toxic gas emissions, increases environmental benefits, greatly avoids crack, shrinkage cavity, shrinkage, air hole and other quality defects of the 6063 aluminum alloy round ingot casting billet, inhibits drawing stamp, unsmooth skin, cold shut, local aluminum leakage and other surface technical problems, improves the microstructure and mechanical properties of a large diameter aluminum alloy bar, avoids the production of cold cracks, improves the rate of finished products of the large diameter aluminum alloy round ingot casting billet, reduces the recycled amount of the waste, saves energy consumption, and reduces emissions of exhaust gas and pollutants so as to achieve the purpose of energy saving, and has remarkable social benefit and environmental benefit.

Description

technical field [0001] The invention relates to a production method of an aluminum alloy round ingot, in particular to a production method of a large-diameter 6063 aluminum alloy round ingot, and belongs to the technical field of aluminum alloy production. Background technique [0002] Because 6063 aluminum alloy has good machinability, heat treatment strengthening performance and welding performance, it is widely used in construction, packaging, transportation, aerospace and other fields, and is called "universal aluminum alloy" at home and abroad. Using electrolytic aluminum liquid to directly produce large-diameter aluminum alloy ingots is a short-process, green and environmentally friendly advanced production technology, which avoids energy consumption and metal burning caused by remelting aluminum ingots in traditional aluminum processing. In addition, the aluminum alloy oil film casting process is one of the most advanced technologies in the world today, but it is more...

AI Technical Summary

Problems solved by technology

In addition, the aluminum alloy oil film casting process is one of the most advanced technologies in the world today, but it is more about improving the appearance quality, but the improvement of the internal quality is very weak, and the aluminum alloy round ingots that can be successfully produced by the oil film casting process The diameter is only 381mm. If it exceeds this diameter, it can only be cast by electromagnetic casting.

With the advancement of technology and the continuous improvement of product performance requirements, the requirements for the size, apparent quality, and internal quality of 6063 aluminum alloy round ingots are also increasing. The existing small-sized 6063 aluminum alloy round ingots have been Unable to meet the requirements, there is an urgent need for large-diameter 6063 aluminum alloy round ingots with superior appearance and internal quality

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