Pressure cast aluminium alloy and its application

A cast aluminum alloy, hard anodizing technology, applied in the field of material science, can solve the problems of high cost, oxide film thickness, hardness, wear resistance and corrosion resistance are not ideal, oxide film is not easy and so on

Active Publication Date: 2006-10-18
ZHEJIANG SUPOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

It is not easy to obtain an oxide film on the surface of the die-casting aluminum alloy. For example, although the die-casting aluminum alloys involved in ZL101 and ZL108 in my country and the above-mentioned patent application can be surface treated to obtain an oxide film, the thickness of the obtained oxide film, Hardness, wear resistance and corrosion resistance are not very ideal
Although YL302 and Japan's ADC6 can obtain relatively high-quality hard anodic oxide films, they can only be used for die-casting some workpieces with simple shapes, and the cost is often too high

Method used

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  • Pressure cast aluminium alloy and its application
  • Pressure cast aluminium alloy and its application

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Embodiment

[0026] Embodiment: Formulate alloy according to the composition shown in Table 1. Wherein process composition analysis uses ultraviolet spectrum analyzer (Germany OBLF company to produce) to carry out whole tracking control, the composition of this kind of die-casting aluminum alloy is in GR3-60 industrial electric furnace at 680 ~ Melt at 710°C, pour the melted alloy components into a DC700 die-casting machine and die-cast for 1 minute to make a rough product of die-cast aluminum alloy, remove the excess part after die-casting and the burr on the surface of the rough product of die-cast aluminum alloy prepared above and pass it through Die-cast aluminum alloy is obtained after machining and surface finishing.

[0027] Table 1: Die-casting aluminum alloy composition (weight percent) of the present invention

[0028]

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Abstract

The present invention provides one kind of pressure cast aluminum alloy and its application, and belongs to the field of material science. The pressure cast aluminum alloy consists of Si 4-8 wt%, Mg 1-5 wt%, and Al for the rest. The pressure cast aluminum alloy is applied to produce hard anodized oxide film through the following steps: smelting, pressure casting, modifying mechanically, and forming hard anodized oxide film. The pressure cast aluminum alloy has anodized oxide film with great thickness, high hardness and high corrosion resistance.

Description

technical field [0001] The invention relates to an aluminum alloy, in particular to a die-casting aluminum alloy, and at the same time, the invention also relates to the application of the aluminum alloy in preparing a surface conversion film, especially a hard anodic oxidation film; it belongs to the field of material science. Background technique [0002] Aluminum is the second most productive metal after steel due to its array of excellent properties. It has a low density, only 1 / 3 of steel, and is light in weight; it has excellent processability and is easy to punch into various complex shapes; it has strong corrosion resistance, excellent electrical conductivity and thermal conductivity, but aluminum has a softer material , low strength, easy to deform when subjected to collision; poor welding performance, joints cannot be welded; poor corrosion resistance to acid and alkali, high cost and other disadvantages; so it is often added on the basis of pure aluminum to form d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/00C22C21/02C22C21/06C25D11/04
Inventor 徐存荣皮秋梅
Owner ZHEJIANG SUPOR CO LTD
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