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Method for preparing aluminum alloy matt plate

A manufacturing method and aluminum alloy technology, applied in metal rolling, manufacturing tools, metal rolling, etc., can solve problems such as easy to produce silk lines on the surface, poor mechanical properties of products, and large loss of raw materials, so as to improve adhesion, anti-corrosion, etc. Improvement of tensile strength and improvement of coating properties

Inactive Publication Date: 2009-06-03
NORTHEAST LIGHT ALLOY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the existing problems of manufacturing aluminum alloy matte plates with many process links, large loss of raw materials, low yield, poor mechanical properties of the product, and easy occurrence of silk and pine lines on the surface. A kind of manufacturing method of aluminum alloy matt sheet material

Method used

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Examples

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Effect test

specific Embodiment approach 1

[0006] Specific Embodiment 1: In this embodiment, the aluminum alloy matt plate is manufactured according to the following steps: 1. 1.0-1.5% of Mn, 0-0.6% of Si, 0-0.7% of Fe, 0.05-0.20% of Cu, 0-0.10% of Zn and the balance of Al are mixed and cast to produce an aluminum alloy ingot, and the aluminum alloy ingot is heated to 600-615°C, and the heat preservation and uniform annealing is carried out for 12-16h; Heating the alloy ingot to 480-520°C, keeping it warm for 10-12 hours, then hot-rolling the aluminum alloy ingot to 8-10mm, and coiling it to obtain an aluminum alloy hot-rolled coil; 3. Cold-rolling the aluminum alloy hot-rolled coil Rolling, the cold rolling of the final pass is rolled with laser textured rolls, the cold rolling reduction of the final pass is 25% to 40%, the final rolling thickness is 2.5 to 0.2mm, and the metal temperature is heated in the annealing furnace Heat it to 280-310°C and keep it warm for 0.5-1.5 hours to get aluminum alloy matt plate.

[0...

specific Embodiment approach 2

[0009] Specific embodiment two: the difference between this embodiment and specific embodiment one is: in step one, 1.1~1.3% Mn, 0.1~0.40% Si, 0.40~0.60% Fe, 0.07~0.15% Cu, 0.01-0.05% of Zn and the balance of Al are mixed and cast to produce an aluminum alloy ingot, which is heated to 605-610°C, and homogenized and annealed for 14-16 hours at heat preservation. Other steps are the same as in the first embodiment.

[0010] In this embodiment, the amount of Fe and Mn mixed is less than 1.80% by weight.

specific Embodiment approach 3

[0011] Specific embodiment three: the difference between this embodiment and specific embodiment one is: in step one, 1.2% of Mn, 0.2% of Si, 0.5% of Fe, 0.12% of Cu, 0.04% of Zn and The balance of Al was mixed and cast to obtain an aluminum alloy ingot. The aluminum alloy ingot was heated to 610° C. and subjected to homogenization and annealing for 16 hours. Other steps are the same as in the first embodiment.

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Abstract

A method for preparing an aluminum alloy matt plate relates to an aluminum alloy plate preparing method and solves problems, such as a great number of procedures, great raw material loss, low finished product rate, disappointing mechanical property of the product and easy generation of silking and pine lines on the surface, which exist in present aluminum alloy matt plate production. The method for preparing the aluminum alloy matt plate is as follows: first, casting an ingot and homogenizing annealing; second, hot rolling and curling; third, cold rolling and annealing; and then obtaining the aluminum alloy matt plate. The method has the advantages of simple and easily-implemented procedures, low raw material loss, high finished product rate, good mechanical property of the product, and no generation of silking and pine lines on the surface.

Description

technical field [0001] The invention relates to a method for manufacturing an aluminum alloy plate. Background technique [0002] As a new type of aluminum alloy material, aluminum alloy matt sheet is more and more used in architectural decoration, packaging, automobile , home appliances and electronics industries, the market demand is growing rapidly. However, the domestic development technology for aluminum alloy matt plates is still immature, and the commonly used electrochemical matte method and matte treatment method after polishing have many process links, large loss of raw materials, and the yield of finished products is only 60%. Defects such as low mechanical properties, surface silk lines, and many pine lines are difficult to meet the needs of use, which restricts the development of related industries to a certain extent. Contents of the invention [0003] The purpose of the present invention is to solve the existing problems of manufacturing aluminum alloy mat...

Claims

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Application Information

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IPC IPC(8): B21B1/22B21B37/58B21B37/16B21B1/40C21D1/26C21D9/70C21D9/46C21D11/00C22C21/00
Inventor 徐涛吴欣凤韩冰王国军徐宏大刘冰全永利
Owner NORTHEAST LIGHT ALLOY CO LTD
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