A high-strength corrosion-resistant aluminum alloy door and window and its preparation method

Abstract

The invention provides a high-strength corrosion-resistant aluminum alloy door and window and a preparation method thereof, belonging to the technical field of aluminum alloy door and window production. The corrosion-resistant aluminum alloy material includes the following components by weight: 1-4 parts of zinc, 0.5-1 parts of manganese, 1-5 parts of iron, 1-5 parts of magnesium, 0.5-1 parts of copper, and 0.1-0.5 parts of cobalt , 0.5-1 part of nickel, 0.5-1 part of zirconium, 0.1-0.5 part of strontium and 0.5-1.5 part of modified rare earth element, the balance is aluminum and inevitable impurities, and the content of said impurities does not exceed 1 part. The high-strength corrosion-resistant aluminum alloy door and window is made of a mixture of various metals, and has high metal strength and good corrosion resistance; the preparation method of the high-strength corrosion-resistant aluminum alloy door and window is simple and has a wide range of sources. , suitable for large-scale industrial promotion.

Description

technical field [0001] The invention belongs to the technical field of aluminum alloy door and window production, and in particular relates to a high-strength corrosion-resistant aluminum alloy door and window and a preparation method thereof. Background technique [0002] Because aluminum alloy has the characteristics of low density, good mechanical properties, good processing performance, non-toxic, easy to recycle, good electrical conductivity, heat transfer and corrosion resistance, it is widely used in marine industry, chemical industry, aerospace, metal packaging, transportation, etc. It is widely used in transportation and other fields. With the rapid development of aluminum alloys, aluminum alloys have been widely used in the manufacture of doors and windows. Because many doors and windows are exposed to the air and need to carry a certain amount of pressure, aluminum alloys are required to have good strength and certain corrosion resistance. [0003] At present, t...

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Problems solved by technology

[0003] At present, the general corrosion-resistant methods for aluminum alloys are anodic oxidation, electrophoretic coating, powder spraying, etc., which can play a certain corrosion-resistant effect on the surface of aluminum alloys, but anodic oxidation will affect its internal stress and affect the aluminum alloy. Strength; while the surface corrosion-resistant layer formed by painting and powder spraying is easy to fall off and wear, and cannot be protected for a long time