Process for producing aluminum alloy profile for ship

Abstract

The invention relates to the technical field of aluminum alloy profiles, and discloses a process for producing an aluminum alloy profile for ships, the aluminum alloy profile comprises an aluminum alloy body, and the aluminum alloy profile comprises the following raw materials in parts by weight: the balance of aluminum Al, 0.5 part of silicon Si, 3.8-4.9 parts of copper Cu, 1.2-1.8 parts of magnesium Mg, 0.5 part of zinc Zn, 0.3-0.9 part of manganese Mn, 0.15 part of titanium Ti, 0.1 part of nickel Ni and 0.5 part of iron Fe; the preparation process comprises the following working steps: 1, manufacturing a mold; 2, aluminum alloy casting; 3, aluminum alloy extrusion; and fourthly, aluminum alloy heat treatment and finishing are conducted. According to the method, the aluminum alloy profile is subjected to withdrawal and straightening on a controlled straightening machine by adopting a special cushion block within 2 hours after quenching, the straightening force reaches 15 Nm, the withdrawal and straightening rate is 2.5%-3.0%, the mechanical property can be measured through local shape correction and natural aging on a press machine when necessary, the strength index of the aluminum alloy profile subjected to withdrawal and straightening can be improved, and the tensile strength of the aluminum alloy profile can be improved. And the effect of improving the performance of the aluminum alloy is achieved.

Description

technical field [0001] The invention relates to the technical field of aluminum alloy profiles, in particular to a process for producing aluminum alloy profiles for ships. Background technique [0002] Ship is the general term for all kinds of ships. Ships are means of transportation that can sail or berth in waters for transportation or operations, and have different technical performances, equipment and structural types according to different requirements for use. A ship is a man-made means of transportation that primarily operates in geographical waters. In addition, civilian ships are generally called ships, military ships are called ships, and small ships are called boats or boats, which are collectively called ships or boats. The interior mainly includes accommodation space, support structure and drainage structure, and has a propulsion system that utilizes external or self-contained energy. The appearance is generally a streamlined envelope that is conducive to ove...

AI Technical Summary

Problems solved by technology

[0003] After the existing aluminum alloy profiles for ships on the market are used on ships, due to the complex shape of the ship, many related dimensions, large outlines, and drastic changes in wall thickness, it is extremely asymmetrical. When the ship walks on the water, the water will impact On the surface of the ship, the aluminum alloy profile is deformed, so the aluminum alloy needs to be strong enough to withstand the impact of water