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Corrosion-resisting die casting aluminum alloy easy to anodize

A technology of anodizing and casting aluminum alloys, which is applied in the field of aluminum alloys and can solve the problems of poor corrosion resistance and poor anodization.

Inactive Publication Date: 2016-12-07
QINGYUAN SHUNBO ALUMINUM ALLOY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the die-casting aluminum alloys in the prior art have extremely poor anodic oxidation properties.
In addition, because die-casting aluminum alloys are mostly used in very harsh external environments, the requirements for their corrosion resistance are extremely high, and the corrosion resistance of die-casting aluminum alloys in the prior art is poor and cannot meet this requirement

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0140] A corrosion-resistant die-casting aluminum alloy that is easy to anodize, calculated in parts by mass, comprising the following components:

[0141] Al: 100 copies;

[0142] Si: 7.5-9.0 parts;

[0143] Cu: 1.0-1.4 parts;

[0144] Mg: 0.3-0.5 parts;

[0145] Mn: 0.5-0.8 parts;

[0146] Zn: 0.5-0.7 parts;

[0147] Sn: 0.5-3.0 parts;

[0148] Fe: 0.3-0.6 parts;

[0149] V: 0.3-1.0 copies;

[0150] Ti:0.05-0.20 parts;

[0151] Pb: 0-0.15 parts;

[0152] Ni: 0-0.5 parts;

[0153] Al is the main body, and the rest constitute additives.

[0154] The corrosion-resistant die-casting aluminum alloy that is easy to anodize in the present invention is calculated in parts by mass. For example, if the content of Al in the aluminum alloy is 100 moles, the corresponding Si content is 7.5-9.0 moles, Cu content is 1.0-1.4 moles, Mg The content is 0.3-0.5 mol, and the content of other elements corresponds in turn.

[0155] The corrosion-resistant die-cast aluminum alloy that i...

Embodiment 2

[0181] A corrosion-resistant die-casting aluminum alloy that is easy to anodize, the other characteristics of which are the same as in Example 1, except that the corrosion-resistant die-cast aluminum alloy that is easy to anodize includes the following components in parts by mass,

[0182] Al: 100 copies;

[0183] Si: 8.0-8.5 parts;

[0184] Cu: 1.1-1.3 parts;

[0185] Mg: 0.35-0.45 parts;

[0186] Mn: 0.6-0.7 parts;

[0187] Zn: 0.55-0.65 parts;

[0188] Sn: 1.0-2.0 parts;

[0189] Fe: 0.35-0.55 parts;

[0190] V: 0.5-0.7 copies;

[0191] Ti: 0.1-0.15 parts;

[0192] Pb: 0-0.10 parts;

[0193] Ni: 0-0.3 parts;

[0194] Al is the main body, and the rest constitute additives.

[0195] The corrosion-resistant die-casting aluminum alloy that is easy to anodize and adopts the equipment, when preparing in large quantities, the performance of the corrosion-resistant die-casting aluminum alloy that is easy to anodize between different batches has good consistency and stable...

Embodiment 3

[0198] A corrosion-resistant die-casting aluminum alloy that is easy to anodize, the other characteristics of which are the same as in Example 1, except that the corrosion-resistant die-cast aluminum alloy that is easy to anodize includes the following components in parts by mass,

[0199] Al: 100 copies;

[0200] Si: 8.3 parts;

[0201] Cu: 1.2 parts;

[0202] Mg: 0.4 parts;

[0203] Mn: 0.65 parts;

[0204] Zn: 0.6 parts;

[0205] Sn: 1.5 parts;

[0206] Fe: 0.4 parts;

[0207] V: 0.6 parts;

[0208] Ti: 0.12 parts;

[0209] Pb: 0.05 parts;

[0210] Ni: 0.2 parts;

[0211] Al is the main body, and the rest constitute additives.

[0212] The performance of the corrosion-resistant die-casting aluminum alloy that is easy to anodize in this embodiment is superior to other ratios of aluminum alloys. The die-casting aluminum alloy in this embodiment has a dense structure, fine crystals, no bright spots, no shrinkage cavities, and no slag. Good tensile strength performan...

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Abstract

The invention discloses a corrosion-resisting die casting aluminum alloy easy to anodize. The corrosion-resisting die casting aluminum alloy comprises, by mass, 100 parts of Al, 7.5-9.0 parts of Si, 1.0-1.4 parts of Cu, 0.3-0.5 part of Mg, 0.5-0.8 part of Mn, 0.5-0.7 part of Zn, 0.5-3.0 parts of Sn, 0.3-0.6 part of Fe, 0.3-1.0 part of V, 0.05-0.20 part of Ti, 0-0.15 part of Pb and 0-0.5 part of Ni, wherein Al is the main body, and an additive is composed of the other components. The corrosion-resisting die casting aluminum alloy is prepared through the steps from A to P. The corrosion-resisting die casting aluminum alloy easy to anodize is good in corrosion resistance performance, easy to anodize and good in overall performance.

Description

technical field [0001] The invention relates to the technical field of aluminum alloys, in particular to a corrosion-resistant die-casting aluminum alloy which is easy to anodize. Background technique [0002] Aluminum alloy is one of the most important raw materials in the industrial field. In modern society, die-casting aluminum alloy parts are widely used in various industries. Aluminum alloy die-casting products are mainly used in electronics, automobiles, motors, home appliances and some communication industries. [0003] Die-casting aluminum alloy has the characteristics of wide die-casting range, high dimensional accuracy of die-casting parts, low surface roughness, high production efficiency, high metal utilization rate, high casting strength and surface hardness. However, the die-casting aluminum alloys in the prior art have extremely poor anodic oxidation properties. In addition, since die-casting aluminum alloys are mostly used in very harsh external environment...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/02C22C1/02
CPCC22C21/02C22C1/026C22C21/003
Inventor 王启王赟陈泰山
Owner QINGYUAN SHUNBO ALUMINUM ALLOY
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