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

A technology of aluminum alloy plate and preparation process, applied in calculation, computer-aided design, special data processing application, etc., can solve problems such as difficult control of performance, complex production process, poor corrosion of alloy, etc., shorten production cycle and improve dimensional accuracy , to ensure the effect of convenient processing

Inactive Publication Date: 2018-08-10
广西南南铝加工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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.

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] An application of the above-mentioned calculation method in the production of high-magnesium aluminum alloy plates, the operation steps are as follows:

[0042] (1) Take the raw material of 5083 high-magnesium aluminum alloy, the composition of which is shown in the "5083" column of Table 1, and carry out smelting, refining and casting in sequence; among them, the melting temperature is 720-750°C, smelting for 6 hours, and the refining temperature is 730-740°C , keep warm for 8h; perform multi-stage degassing treatment on the aluminum alloy melt, significantly reduce the gas content in the aluminum melt, in order to reduce casting defects such as pores and looseness in the aluminum alloy flat ingot, select a 30ppi filter plate to remove the aluminum melt oxides, non-metallic inclusions and other harmful metal impurities in the body to reduce casting defects such as slag inclusions in the ingot. After removing impurities and degassing, semi-continuous casting is used to p...

Embodiment 2

[0047] (4) After the plate obtained in step (3) is naturally cooled, trim the edge to 500mm, take a sample to detect the transverse performance, see Table 2 No. C, and then stretch it, and set the target expectation as transverse yield R=255MPa ( 5083-H24 / H34 yield strength 250MPa), Kr=Kx=1.18, tensile force required for stretching F=D×W×R×Kr=100mm×500mm×255MPa×1.18=15.05MN; tensile rate is 4.0mm / s, the high-magnesium aluminum alloy plate is obtained, and samples are taken to detect the mechanical properties and corrosion properties. The properties are shown in Table 2, No. D.

[0048] All the other operations are identical to Example 1.

Embodiment 3

[0050] An application of the above-mentioned calculation method in the production of high-magnesium aluminum alloy plates, the operation steps are as follows:

[0051] (1) Take the raw material of 5086 high-magnesium aluminum alloy, the composition of which is shown in the "5086" column of Table 1, and carry out smelting, refining and casting in sequence; among them, the melting temperature is 750-780°C, smelting for 4 hours, and the refining temperature is 710-730°C , keep warm for 2 hours; carry out multi-stage degassing treatment on the aluminum alloy melt, significantly reduce the gas content in the aluminum melt, in order to reduce casting defects such as pores and looseness in the aluminum alloy slab, select a 40ppi filter plate to remove the aluminum melt oxides, non-metallic inclusions and other harmful metal impurities in the body to reduce casting defects such as slag inclusions in the ingot. After removing impurities and degassing, semi-continuous casting is used to ...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50C22F1/047C22C21/08C22C1/02
CPCC22C1/026C22C21/08C22F1/047G06F2119/06G06F30/20
Inventor 赵启忠何建贤朱希一杨鸿驰覃珊周文标
Owner 广西南南铝加工有限公司
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