Importance

Loading Importance Indicators...

Abstract

The present invention provides a high-plasticity composite modified aluminum alloy product and a preparation method therefor. Wherein, the preparation method includes the following steps: step S1, providing an aluminum alloy melt; step S2, providing a modifier; step S3, adding the modifier to the aluminum alloy melt under an inert gas atmosphere and melting, to obtain a modified aluminum alloy melt; step S4, performing casting by using the modified aluminum alloy melt, to obtain the cast aluminum alloy blank; and step S5, performing a heat treatment on the modified aluminum alloy blank, wherein, the heat treatment includes: a solution treatment, involving heating the aluminum alloy blank to 530° C.-550ºC, and maintaining the temperature for 120-300 min; a water quenching treatment, involving adding the aluminum alloy blank after the solution treatment into a water bath with the temperature of 60° C.-70° ° C., and water quenching same for 2-4 min; an aging treatment, involving maintaining the aluminum alloy blank after the water quenching treatment at 110° C.-140° ° C. for 120-240 min, then further raising the temperature to 160° C.-200° C. and maintaining the temperature for 20-60 min, and then cooling to room temperature to obtain the high-plasticity composite modified aluminum alloy part.

Loading the Abstract Image...

First Claim