6063 aluminum alloy and processing technique thereof

Abstract

The invention discloses 6063 aluminum alloy and a processing technique thereof. The processing technique includes the following steps that aluminum ingots and Al-Si intermediate alloy are put into a furnace according to the component design requirement, and after the aluminum ingots and Al-Si intermediate alloy are melted, magnesium ingots, Al-rare earth intermediate alloy and Al-Ti-B are sequentially added; after the procedures of deaeration, refining, stirring, drossing and the like are carried out, casting rods in the specification of 100mm*400mm are cast through a semi-continuous water-cooling casting method at the temperature of 730 DEG C; the casting rods are cut into ingot billets in the specification of 100mm*390mm, and the ingot billets are homogenized for 6 h at the temperature of 560 DEG C; and finally, the ingot billets are subjected to hot extrusion to form profile materials through a 6MN extruding machine. After rare earth is added into the 6063 aluminum alloy, and the contents of magnesium and silicon are strictly controlled, so that the hot extrusion performance can be improved. After the rare earth is added into the 6063 aluminum alloy, the shape of precipitates isimproved, a certain refining function is achieved for the structure of casting ingots, a small quantity of a granular rare earth phase is separated out from the structure, and the comprehensive mechanical performance of the alloy is improved.

Description

technical field [0001] The invention relates to the technical field of aluminum alloys, in particular to a 6063 aluminum alloy and a processing technology thereof. Background technique [0002] Rare earth reserves are abundant in our country. Adding rare earths to 6063 aluminum alloy can improve the as-cast structure of the alloy and refine dendrites; help degassing and slag removal, and have a good purification effect on aluminum alloys; can improve Plasticity and thermal deformation capacity of 6063 aluminum alloy. Because rare earths have a good modification effect on 6063 aluminum alloy, rare earths have good application prospects, and have received extensive attention at home and abroad in recent years. However, most of the research stays in the laboratory stage, and there are not many studies on the application of rare earths in the industrial production of 6063 aluminum alloy. Based on this, a 6063 aluminum alloy and its processing technology are studied. Contents...

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Problems solved by technology

However, most of the research stays in the laboratory stage, and there is not much research on the application of rare earths in the industrial production of 6063 aluminum alloy.

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