Method for calculating drawing force in aluminum alloy plate preparation process and application thereof

Abstract

The invention discloses an application of a method for calculating drawing force in an aluminum alloy plate preparation process to production of high-magnesium aluminum alloy plates. The application comprises the following steps of: (1) taking a raw material of high-magnesium aluminum alloy, and carrying out smelting, refining and casting; (2) carrying out two-stage uniform heat treatment and thencarrying out saw cutting and face milling; (3) carrying out preheating and hot rolling; and (4) carrying out side cutting after cooling, and carrying out drawing so as to a high-magnesium aluminum alloy plate, wherein drawing force required by the drawing is F=D*W*R*Kr, and a drawing speed is 1.0-15mm / s. Plates produced by the application keep tissues and corrosion property of high-temperature rolled plates, so that the high-temperature using stability and corrosion property stability of the plates in the later stage are improved; and the plates can be used for ship oceanographic engineering,tanks, armor plates, war industry or high-temperature environment. According to the application, the production processes are simplified, a cold rolling process and an annealing process can be decreased, the yield strength of finished products can be accurately controlled, the plate size precision is improved, the production period is shortened and the production costs of the products are reduced.

Description

technical field [0001] The invention relates to a calculation method of tensile force and its application, in particular to a calculation method of tensile force in the preparation process of aluminum alloy plates and its application. Background technique [0002] Due to its high strength and good corrosion resistance, high-magnesium aluminum alloy plates are widely used in ships, armor, transportation and other fields. High-magnesium aluminum alloy is a cold work hardening alloy. After the composition is fixed, the conventional work hardening method is cold work hardening, such as cold rolling or low temperature rolling. The typical production process of cold work hardening of high-magnesium aluminum alloy plates is as follows: batching→smelting→refining / degassing / filtering→casting→homogenizing annealing→sawing head and tail→milling→preheating→hot rolling→cold rolling→recoiling Cleaning→intermediate annealing→cold rolling→recoil cleaning→annealing of the final product→cros...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the above technical problems, the present invention proposes a calculation method and application of tensile force in the production process of aluminum alloy plates. Due to technical problems such as small opening of the rolling mill, small thickness and narrow width of conventional high-magnesium aluminum alloys, complex production process, difficult performance control, and poor corrosion resistance of the alloy, the present invention is tensile strengthening after hot rolling, which can realize the hot-rolled structure of the plate, The production process is simple and efficient. The maximum thickness of the produced plate is 200mm, and the width is up to 3800mm. The yield strength of aluminum can be precisely controlled, which can improve the performance of the heat-affected zone after welding, and can also improve the flatness of the plate.

Images