A kind of aluminum alloy, aluminum flat tube and aluminum flat tube production process
A production process and technology for aluminum flat tubes, applied in the field of aluminum alloys, can solve problems such as the inability of standard materials to meet production and use requirements, and achieve the effects of refining recrystallized grains, ensuring surface quality, and increasing recrystallization temperature.
Active Publication Date: 2021-05-28
张家港市宏基精密铝材科技有限公司
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Problems solved by technology
Among them, the aforementioned aluminum rods are aluminum alloys, and the material grades generally used are in accordance with GB / T3190 "Chemical Composition of Deformed Aluminum and Aluminum Alloys", but the standard materials cannot meet the needs of production and use.
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[0018] The technical solutions of the invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the invention, not all of them. Based on the embodiments of the invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the invention.
[0019] An aluminum flat tube, characterized by comprising an aluminum alloy substrate and a coating layer sprayed on the surface of the aluminum alloy substrate, the aluminum alloy substrate is an aluminum alloy, and the aluminum alloy includes the following components by mass fraction: Si: ≤0.12 , Fe: ≤0.18, Cu: ≤0.05, Mn: 0.80~1.00, Zn: ≤0.03, Ti: 0.01~0.02, the rest are Al and unavoidable impurities; the optimal content of Mn is 0.85~0.90; the coating The layer is a zinc coating layer.
[0020] The present invention also provides a production process f...
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Abstract
The invention discloses a production process of an aluminum alloy, an aluminum flat tube and an aluminum flat tube. The aluminum alloy comprises the following components by mass fraction: Si: ≤0.12, Fe: ≤0.18, Cu: ≤0.05, Mn: 0.80-1.00 , Zn: ≤0.03, Ti: 0.01~0.02, the rest is Al and unavoidable impurities; the aluminum flat tube includes an aluminum alloy substrate and a coating layer sprayed on the surface of the aluminum alloy substrate, the aluminum alloy substrate is the above-mentioned aluminum alloy, and the coating The layer is a zinc coating layer; the production process is controlled during the production of aluminum flat tubes. The advantage of the present invention is that the burst pressure and mechanical properties of the aluminum flat tube produced by the aluminum alloy of the technical scheme of the present invention are significantly improved, and at the same time, the high temperature strength of the alloy containing Cu and Si is improved, the recrystallization temperature is increased, and the aluminum flat tube can be significantly improved. Refining recrystallized grains, and ensuring the surface quality of extruded products, the tensile strength and corrosion resistance are significantly improved.
Description
technical field [0001] The invention belongs to the technical field of aluminum alloys, and in particular relates to an aluminum alloy, an aluminum flat tube and a production process for the aluminum flat tube. Background technique [0002] The density of aluminum alloy is low, but its strength is relatively high, which is close to or exceeds that of high-quality steel. It has good plasticity and can be processed into various profiles. Therefore, aluminum alloy is the most widely used non-ferrous metal structural material in the industry. It has been widely used in aviation, aerospace, automobile, machinery manufacturing, shipbuilding and chemical industry. Micro-channel aluminum flat tube (also known as "parallel flow aluminum flat tube") is a thin-walled porous flat tubular material that is made of refined aluminum rods, hot-extruded, and sprayed with zinc on the surface for anti-corrosion treatment. It is mainly used in various refrigerants In the air-conditioning system...
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IPC IPC(8): C22C21/00C23C4/08C23C4/123C23C4/16B21C23/08
CPCB21C23/085C22C21/00C23C4/06C23C4/16
Inventor 樊志贤
Owner 张家港市宏基精密铝材科技有限公司