Novel energy-saving aluminum alloy profile and manufacturing technique thereof

An aluminum alloy profile, a new technology, applied in the direction of anodic oxidation, electrolytic coating, electrophoretic plating, etc., can solve the problem that the quality of the film layer cannot be judged and controlled intuitively online, the pitting corrosion resistance or filiform corrosion resistance is not ideal, Unsatisfactory corrosion resistance and other problems, to achieve the effect of simple and easy-to-control production process, large length of finished products and high production efficiency

Inactive Publication Date: 2015-11-11
ANHUI LANT ALUMINUM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the commonly used chromization or phosphorous chromization treatment can meet better performance requirements, due to the extreme toxicity of the agent, they are all processes that are about to be banned by the country or locality, and the zirconium-titanium conversion coating is transparent, and the film quality cannot be guaranteed. Online intuitive judgment and control, and the corrosion resistance is not ideal
That is, the pitting corrosion resistance or filiform corrosion resistance of sprayed organic coating profile products are not ideal

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A new type of energy-saving aluminum alloy profile, including the following components by mass percentage, Mg: 2.5%, Si: 2.2%, Mn: 0.03%, Cu: 0.20%, Fe: 0.05%, Ti: 0.03%, Cr: 0.03 %, Zr: 0.03%, P: 0.22%, Sn: 0.20%, and the rest is Al.

[0020] A method for producing a novel energy-saving aluminum alloy profile, comprising the following steps,

[0021] 1) Batching, install process formula for batching;

[0022] 2) Melting, put the above raw materials into the melting furnace, keep the temperature in the melting furnace at 330°C, fill the melting furnace with inert gas, heat it to 445°C and keep it warm for 2.5h;

[0023] 3) Continuous extrusion at a speed of 350mm / min, wherein the pressure is controlled at 160kg / m during extrusion 2 , water cooling to obtain extruded profiles;

[0024] 4) Two-stage aging heat treatment, first-stage aging heat treatment at a temperature of 450°C for 30 minutes, then water-cooled to room temperature, and then a second-stage aging heat t...

Embodiment 2

[0027] A new type of energy-saving aluminum alloy profile, comprising the following components by mass percentage, Mg: 2.9%, Si: 2.4%, Mn: 0.06%, Cu: 0.50%, Fe: 0.25%, Ti: 0.08%, Cr: 0.06 %, Zr: 0.06%, P: 0.20%, Sn: 0.30%, and the rest is Al.

[0028] A method for producing a novel energy-saving aluminum alloy profile, comprising the following steps,

[0029] 1) Batching, install process formula for batching;

[0030] 2) Melting, adding the above raw materials into the melting furnace, keeping the temperature in the melting furnace at 360°C, filling the melting furnace with inert gas, heating to 435°C and keeping it warm for 3 hours;

[0031] 3) Continuous extrusion at a speed of 450mm / min, wherein the pressure is controlled at 200kg / m during extrusion 2 , water cooling to obtain extruded profiles;

[0032] 4) Two-stage aging heat treatment, first-stage aging heat treatment at a temperature of 520°C for 120 minutes, then water-cooled to room temperature, and then a second-s...

Embodiment 3

[0035] A new type of energy-saving aluminum alloy profile, comprising the following components by mass percentage, said Mg: 2.3%, Si: 2.3%, Mn: 0.05%, Cu: 0.35%, Fe: 0.15%, Ti: 0.06%, Cr : 0.05%, Zr: 0.04%, P: 0.21%, Sn: 0.25%, and the rest is Al.

[0036] A method for producing a novel energy-saving aluminum alloy profile, comprising the following steps,

[0037] 1) Batching, install process formula for batching;

[0038] 2) Melting, adding the above raw materials into the melting furnace, keeping the temperature in the melting furnace at 345°C, filling the melting furnace with inert gas, heating to 460°C and keeping it warm for 2.35h;

[0039] 3) Continuous extrusion at a speed of 400mm / min, wherein the pressure is controlled at 180kg / m during extrusion 2 , water cooling to obtain extruded profiles;

[0040]4) Double-stage aging heat treatment: perform primary aging heat treatment at a temperature of 485°C for 35 minutes, then water-cool it to room temperature, then perfo...

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Abstract

The invention discloses a novel energy-saving aluminum alloy profile and a manufacturing technique thereof. The novel energy-saving aluminum alloy profile comprises, by mass, 2.5%-2.9% of Mg, 2.2%-2.4% of Si, 0.03%-0.06% of Mn, 0.20%-0.50% of Cu, 0.05%-0.25% of Fe, 0.03%-0.08% of Ti, 0.03%-0.06% of Cr, 0.03%-0.06% of Zr, 0.22%-0.20% of P, 0.20%-0.30% of Sn and the balance Al. Through material proportioning, smelting, continuous squeezing, two-stage aging heat treatment and surface treatment, deformation of the aluminum alloy profile is small, the rejection rate is low, energy is saved, environmental friendliness is achieved, and grains in the structure are refined and high in uniformity.

Description

technical field [0001] The invention relates to the field of building profiles, in particular to a novel energy-saving aluminum alloy profile and a manufacturing process thereof. Background technique [0002] Aluminum alloy profiles are commonly used as a building material. Before the aluminum alloy profile is used, in order to improve the anti-corrosion performance of the profile and have a certain color decoration effect, the surface of the profile must be treated. Aluminum alloy profile products are divided into oxidation coloring, spraying organic coating and other products according to the surface treatment method. Oxidation coloring products are based on the principles of anodic oxidation and electrolytic coloring to form a dense oxide film on the surface of aluminum alloy profiles and electrolytically reduce a certain amount of non-ferrous metal ions in the oxide film to present a certain color. Spraying organic coating products is to coat a layer of organic coating...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/08C22F1/05C25D11/04C25D13/00
Inventor 雷忠平潘祖堂熊茂清方学军
Owner ANHUI LANT ALUMINUM
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