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Preparation method of aluminum alloy

An aluminum alloy and component adjustment technology, applied in the field of aluminum alloy, can solve problems such as poor surface quality and white lines, and achieve the effect of not increasing production costs

Active Publication Date: 2020-06-16
SOUTHWEST ALUMINUM GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The aluminum alloys prepared in the prior art are generally produced according to the conventional pure aluminum ingot casting method, and only the controlled components meet the standard requirements, but the aluminum alloys prepared in this way often have white lines after anodizing and coloring, and the surface quality is poor

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] Aluminum alloys were prepared as follows:

[0056]Batching, smelting, composition adjustment, melt purification, grain refinement, casting, sawing, milling, rolling, packaging, delivery (user), slitting, capping and anodizing are carried out in sequence;

[0057] In the batching process, the mass content of Si is controlled to be ≤0.10%, and the mass content of Fe is ≤0.18wt%;

[0058] During the smelting process, the alloy raw materials were sampled and analyzed after melting, and the mass content of the Ti element was adjusted to 0.005%; the temperature of the furnace refining was 730°C, and the time of the furnace refining was 15 minutes; the refining gas of the online degassing and refining It is argon, the temperature of online degassing and refining is 720°C, and the temperature of online filtration is 710°C; the mass content of Ti element in front of the furnace is controlled at 0.005%; Produce alloys with low content of Fe and Ti elements, and appropriately red...

Embodiment 2

[0072] Aluminum alloys were prepared as follows:

[0073] Batching, smelting, composition adjustment, melt purification, grain refinement, casting, sawing, milling, rolling, packaging, delivery (user), slitting, capping and anodizing are carried out in sequence;

[0074] In the batching process, the mass content of Si is controlled to be ≤0.10%, and the mass content of Fe is ≤0.18wt%;

[0075] During the smelting process, the alloy raw materials were sampled and analyzed after melting, and the mass content of the Ti element was adjusted to 0.005%; the temperature of the furnace refining was 740°C, and the time of the furnace refining was 25 minutes; the refining gas of the online degassing and refining It is argon, the temperature of online degassing and refining is 730°C, and the temperature of online filtration is 720°C; the mass content of Ti element in front of the furnace is controlled at 0.005%; Produce alloys with low content of Fe and Ti elements, and appropriately re...

Embodiment 3

[0089] Aluminum alloys were prepared as follows:

[0090] Batching, smelting, composition adjustment, melt purification, grain refinement, casting, sawing, milling, rolling, packaging, delivery (user), slitting, capping and anodizing are carried out in sequence;

[0091] In the batching process, the mass content of Si is controlled to be ≤0.10%, and the mass content of Fe is ≤0.18wt%;

[0092] During the smelting process, the alloy raw materials were sampled and analyzed after melting, and the mass content of the Ti element was adjusted to 0.005%; the temperature of the furnace refining was 750° C., and the time of the furnace refining was 30 minutes; the refining gas of the on-line degassing and refining It is argon, the temperature of online degassing and refining is 745°C, and the temperature of online filtration is 730°C; the mass content of Ti element in front of the furnace is controlled at 0.005%; Produce alloys with low content of Fe and Ti elements, and appropriately...

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Abstract

The invention provides a preparation method of an aluminum alloy. The preparation method of the aluminum alloy comprises the steps of batching, smelting, component adjustment, melt purification, grain refinement, casting, saw cutting, face-milling, rolling and anodic oxidation sequentially; during the step of the batching, the mass content of Si is controlled to be less than or equal to 0.1%, andthe mass content of Fe is controlled to be less than or equal to 0.18%; and during the step of the grain refinement, the micro-structure of a refiner includes TiB2, TiAl3, oxides and salt inclusions,wherein the grain size of the TiB2 is less than or equal to 2 microns, the grain size of TiAl3 is less than or equal to 30 microns, and the length-diameter size of the oxides and salt inclusions is less than or equal to 400 microns. According to the preparation method of the aluminum alloy, it is ensured that the prepared aluminum alloy has no white line defect after the anodic oxidation.

Description

technical field [0001] The invention relates to the technical field of aluminum alloys, in particular to a method for preparing aluminum alloys. Background technique [0002] Aluminum alloys prepared in the prior art are generally produced according to the conventional method of pure aluminum ingot casting, and only the controlled components meet the standard requirements. However, the aluminum alloys prepared in this way often have white lines after anodizing and coloring, and the surface quality is poor. Contents of the invention [0003] In view of this, the object of the present invention is to provide a method for preparing an aluminum alloy. The aluminum alloy prepared by the method provided by the present invention has a better surface quality after anodic oxidation. [0004] The invention provides a method for preparing an aluminum alloy, comprising: [0005] Batching, smelting, composition adjustment, melt purification, grain refinement, casting, sawing, milling,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C1/02C22C1/06C22C21/00C25D11/04
CPCC22C1/026C22C1/06C22C21/00C22C21/003C25D11/04
Inventor 史贵山王勇超汪永红牟蕊悦
Owner SOUTHWEST ALUMINUM GRP
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