Heat treatment process for high-strength aluminum alloy profile

Abstract

The invention discloses a heat treatment process for a high-strength aluminum alloy profile in the technical field of heat treatment of aluminum alloy profiles. The heat treatment process comprises the following specific steps of: step 1, injecting cooling water into a heat treatment device to enable the water level of the heat treatment device to reach the working height; step 2, conveying the high-temperature aluminum alloy profile needing to be subjected to heat treatment into the heat treatment device, starting the heat treatment device, and performing heat treatment on the high-temperature aluminum alloy profile; and step 3, after the heat treatment is finished, transferring the aluminum profile into a next procedure. The heat treatment process solves the problems that in the heat treatment process of an aluminum profile by existing equipment, the aluminum profile is generally subjected to heat treatment in a spraying cooling mode; annular water flow is generally directly sprayed to the outer surface of the aluminum profile in consideration of the heat treatment dead angle problem, and the water flow cannot be controlled in order to keep the periphery of the water flow uniform; and the heat treatment cooling time cannot be effectively controlled, so that the cooling time of the aluminum profile is too fixed, and the equipment applicability is poor.

Description

technical field [0001] The invention relates to the technical field of heat treatment of aluminum alloy profiles, in particular to a heat treatment process for high-strength aluminum alloy profiles. Background technique [0002] Aluminum profile heat treatment is a process in which aluminum profile products are heated to a suitable temperature in a certain medium and cooled at different speeds. Heat treatment of aluminum profiles is one of the more important processes in material production. Compared with other processing processes, heat treatment generally does not change the shape and overall chemical composition of the workpiece, but changes the internal microstructure of the workpiece, or changes the shape of the workpiece. The chemical composition of the surface imparts or improves the performance of the workpiece. It is characterized by improving the intrinsic quality of the workpiece, which is generally not visible to the naked eye. The "four fires" in the heat trea...

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Problems solved by technology

[0005] The object of the present invention is to provide a high-strength aluminum alloy profile heat treatment process to solve the problem that the existing equipment in the above background technology usually adopts the spray cooling method to heat treat the aluminum profile during the heat treatment process of the aluminum profile. The dead angle problem is usually directly sprayed onto the outer surface of the aluminum profile by means of annular water flow, but in order to keep the water flow uniform around the water flow size, the size of the water flow cannot be controlled effectively, and the cooling time of the heat treatment cannot be effectively controlled, resulting in the cooling time of the aluminum profile being too fixed, resulting in poor applicability of the equipment The problem arises; secondly, the supercooled coolant is directly sprayed onto the surface of the aluminum profile, which may cause chapping on the surface of the overheated aluminum profile, and even cause bending problems of the aluminum profile

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