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Production process of 5052 aluminum alloy plate with low earing rate

An aluminum alloy sheet and production process technology, applied in the field of aluminum alloy manufacturing, can solve the problems of poor effect and low ear rate 5052 aluminum alloy sheet, and achieve the effect of improving isotropy and improving comprehensive performance

Active Publication Date: 2020-06-12
TIANJIN ZHONGWANG ALUMINUM IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, in order to solve the problem that the existing 5052 aluminum alloy plate improves the ear-making performance by controlling the rolling deformation rate and annealing temperature, and the improvement effect is not good, the present invention provides a production process for the 5052 aluminum alloy plate with a low ear-making rate

Method used

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  • Production process of 5052 aluminum alloy plate with low earing rate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A kind of production technology of 5052 aluminum alloy plates with low selvage rate, comprises the steps:

[0031] A. Prepare aluminum alloy raw materials according to the following ratios in parts by weight:

[0032] element Mg Fe Si mn Cr Cu Zn Ti Impurities Al content 2.469 0.084 0.044 0.011 0.163 0.001 0.004 0.019 0.05 margin

[0033] Adding the prepared aluminum alloy raw materials into the melting furnace for uniform mixing and melting into liquid aluminum alloy to obtain aluminum alloy melt;

[0034] B. Refining the aluminum alloy melt at 720-740°C for 20-40 minutes, melting and casting the refined aluminum alloy melt into an aluminum alloy ingot;

[0035] C. The aluminum alloy ingot is sawed and milled, and the aluminum alloy ingot after sawing and milling is sent into a heating furnace, heated at 540°C for 10h, then cooled naturally to room temperature, and then cold-rolled. After cold-rolling, the aluminum alloy ...

Embodiment 2

[0040] The difference between Example 2 and Example 1 is that in step C, the aluminum alloy ingot is sawed and milled, and the aluminum alloy ingot after sawing and milling is sent into a heating furnace, heated at 560°C for 10 hours, and then naturally cooled to Cold rolling is carried out after room temperature, and the thickness of the aluminum alloy coil after cold rolling is 2.0 mm.

Embodiment 3

[0042] The difference between Example 3 and Example 1 is that in step C, the aluminum alloy ingot is sawed and milled, and the aluminum alloy ingot after sawing and milling is sent into a heating furnace, heated at 580°C for 10 hours, and then naturally cooled to Cold rolling is carried out after room temperature, and the thickness of the aluminum alloy coil after cold rolling is 2.0mm.

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Abstract

The invention belongs to the technical field of aluminum alloy manufacturing, and relates to a production process of a 5052 aluminum alloy plate with a low earing rate. The aluminum alloy plate is prepared from the raw materials: 2.2-2.6% of Mg, 0.05-0.35% of Fe, less than or equal to 0.16% of Si, less than or equal to 0.10% of Mn, 0.20-0.25% of Cr, less than or equal to 0.03% of Cu, less than orequal to 0.04% of Zn, less than or equal to 0.025% of Ti, less than or equal to 0.05% of a single impurity, less than or equal to 0.15% of total amount of impurities, and the balance of Al. An aim ofimproving orientation distribution of a matrix structure is achieved from angles of adjusting composition of ingotting and homogenizating process, and thus the earing rate of a material is lowered andyield of the 5052 aluminum alloy plate is improved.

Description

technical field [0001] The invention belongs to the technical field of aluminum alloy manufacturing, and relates to a production process of a 5052 aluminum alloy plate with a low ear-making rate. Background technique [0002] 5052 is an aluminum alloy with good corrosion resistance, easy formability and moderate strength. It is widely used in ships, pressure vessels and transportation. The main added element of 5052 is Mg, and a small amount of Si, Fe, Cr, Mn and other elements are also added to improve the strength mainly through plastic deformation. At present, the industrially produced 5052 used to make pressure vessels is to improve the ear-making performance by controlling the rolling deformation rate and annealing temperature, but the improvement effect is limited, and the yield of the material in the actual application process is not high, so it needs to be improved. 5052 production process, in order to obtain a stable low ear rate 5052 plate. [0003] The main fact...

Claims

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Application Information

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IPC IPC(8): C22C21/08C22C1/02C22C1/06C22F1/047
CPCC22C1/026C22C1/06C22C21/08C22F1/047
Inventor 张国文杨直达秦俊杰任国春刘聪李玉博祖立成
Owner TIANJIN ZHONGWANG ALUMINUM IND CO LTD
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