6060 aluminum alloy board for curtain wall and preparation method thereof

Abstract

The invention belongs to the technical field of aluminum alloys, and relates to a 6060 aluminum alloy board for a curtain wall and a preparation method thereof. The alloy elements such as magnesium, iron and chromium are optimally adjusted, the product is enabled to have the relatively high elongation while having the high strength, the compound is enabled to be uniformly distributed in the thickness direction of the board through the optimized technologies of casting, hot rolling, cold rolling and solid solution and ageing, the size of the compound is thin and small, the aluminum alloy boardwith the high surface and bending performance and flat board shape can be obtained, meanwhile, by combining the specific rolling technology rule and solid solution ageing rule, the technological procedure is simple, and the aluminum alloy board is suitable for factory large-scale production, and has the high yield.

Description

technical field

[0001] The invention belongs to the technical field of aluminum alloys, and relates to a 6060 aluminum alloy plate for curtain walls and a preparation method thereof. Background technique

[0002] Aluminum alloy has the advantages of high specific strength, corrosion resistance, good processing performance, excellent electrical conductivity, thermal conductivity and easy recycling, etc. It is widely used in aviation, aerospace, automobile, machinery manufacturing, shipbuilding and chemical industry. The 6-series aluminum alloy is an aluminum alloy that can be heat-treated and strengthened. It has a series of excellent comprehensive properties, such as medium strength, corrosion resistance, anodic oxidation coloring, and no tendency to stress corrosion cracking. It has good plasticity in cold working and hot states. It can be extruded and bent into various products with complex structures. Now the curtain wall uses 3 series aluminum-manganese alloy plates suc...

Examples

Embodiment 1

[0028] A kind of 6060 aluminum alloy sheet material for curtain wall, comprises the following steps:

[0029] A. Ingredients: ingredients according to the following mass percentages: Si 0.35%, Fe 0.12%, Cu 0.05%, Mn 0.08%, Mg 0.45%, Cr 0.02%, Zn 0.03%, Ti 0.03%, other individual impurities ≤ 0.05%, The total amount of impurities ≤ 0.15%, the balance is Al;

[0030] B. Smelting: put the prepared aluminum alloy raw materials except Ti in a smelting furnace for smelting, and then place them in a holding furnace for 5-10 hours to keep warm, and cast the warmed aluminum alloy melt into an aluminum alloy ingot through a launder, wherein Add Al-3Ti-B wire grain refiner in launder;

[0031] C. Hot rolling: After sawing and milling the smelted aluminum alloy ingot, heat it to 550°C, heat it for 3 hours, and roll it into an aluminum alloy coil. The hot-rolled deformation of the aluminum alloy coil is 78%. The final rolling temperature of hot-rolled coils is 300°C;

[0032] D, cold ro...

Embodiment 2

[0037] A kind of 6060 aluminum alloy sheet material for curtain wall, comprises the following steps:

[0038] A. Ingredients: ingredients according to the following mass percentages: Si 0.35%, Fe 0.12%, Cu 0.05%, Mn 0.08, Mg 0.45%, Cr 0.02%, Zn 0.03%, Ti 0.03%, other individual impurities ≤ 0.05%, total impurities Amount ≤ 0.15%, the balance is Al;

[0039] B. Smelting: put the prepared aluminum alloy raw materials except Ti in a smelting furnace for smelting, and then place them in a holding furnace for 5-10 hours to keep warm, and cast the warmed aluminum alloy melt into an aluminum alloy ingot through a launder, wherein Add Al-3Ti-B wire grain refiner in launder;

[0040] C. Hot rolling: After sawing and milling the smelted aluminum alloy ingot, heat it to 540°C, heat it for 12 hours, and roll it into aluminum alloy coil. The hot rolling deformation of the aluminum alloy coil is 85%. The final rolling temperature of hot-rolled coils is 300°C;

[0041] D, cold rolling: co...

Embodiment 3

[0046] A kind of 6060 aluminum alloy sheet material for curtain wall, comprises the following steps:

[0047] A. Ingredients: ingredients according to the following mass percentages: Si 0.45%, Fe 0.18%, Cu 0.03%, Mn 0.10%, Mg 0.55%, Cr 0.01%, Zn 0.04%, Ti 0.05%, other single impurities ≤0.05%, The total amount of impurities ≤ 0.15%, the balance is Al;

[0048] B. Smelting: put the prepared aluminum alloy raw materials except Ti in a smelting furnace for smelting, and then place them in a holding furnace for 5-10 hours to keep warm, and cast the warmed aluminum alloy melt into an aluminum alloy ingot through a launder, wherein Add Al-5Ti-0.2B silk grain refiner in launder;

[0049] C. Hot rolling: heat-treat the smelted aluminum alloy ingot inhomogeneously, hold it at 560°C for 8 hours before hot rolling, then lower the temperature to 520°C, roll it into aluminum alloy coils, and the hot-rolled deformation of aluminum alloy coils The content is 98%, and the final rolling temp...

technical field

[0001] The invention belongs to the technical field of aluminum alloys, and relates to a 6060 aluminum alloy plate for curtain walls and a preparation method thereof. Background technique

[0002] Aluminum alloy has the advantages of high specific strength, corrosion resistance, good processing performance, excellent electrical conductivity, thermal conductivity and easy recycling, etc. It is widely used in aviation, aerospace, automobile, machinery manufacturing, shipbuilding and chemical industry. The 6-series aluminum alloy is an aluminum alloy that can be heat-treated and strengthened. It has a series of excellent comprehensive properties, such as medium strength, corrosion resistance, anodic oxidation coloring, and no tendency to stress corrosion cracking. It has good plasticity in cold working and hot states. It can be extruded and bent into various products with complex structures. Now the curtain wall uses 3 series aluminum-manganese alloy plates suc...

Examples

Embodiment 1

[0028] A kind of 6060 aluminum alloy sheet material for curtain wall, comprises the following steps:

[0029] A. Ingredients: ingredients according to the following mass percentages: Si 0.35%, Fe 0.12%, Cu 0.05%, Mn 0.08%, Mg 0.45%, Cr 0.02%, Zn 0.03%, Ti 0.03%, other individual impurities ≤ 0.05%, The total amount of impurities ≤ 0.15%, the balance is Al;

[0030] B. Smelting: put the prepared aluminum alloy raw materials except Ti in a smelting furnace for smelting, and then place them in a holding furnace for 5-10 hours to keep warm, and cast the warmed aluminum alloy melt into an aluminum alloy ingot through a launder, wherein Add Al-3Ti-B wire grain refiner in launder;

[0031] C. Hot rolling: After sawing and milling the smelted aluminum alloy ingot, heat it to 550°C, heat it for 3 hours, and roll it into an aluminum alloy coil. The hot-rolled deformation of the aluminum alloy coil is 78%. The final rolling temperature of hot-rolled coils is 300°C;

[0032] D, cold ro...

Embodiment 2

[0037] A kind of 6060 aluminum alloy sheet material for curtain wall, comprises the following steps:

[0038] A. Ingredients: ingredients according to the following mass percentages: Si 0.35%, Fe 0.12%, Cu 0.05%, Mn 0.08, Mg 0.45%, Cr 0.02%, Zn 0.03%, Ti 0.03%, other individual impurities ≤ 0.05%, total impurities Amount ≤ 0.15%, the balance is Al;

[0039] B. Smelting: put the prepared aluminum alloy raw materials except Ti in a smelting furnace for smelting, and then place them in a holding furnace for 5-10 hours to keep warm, and cast the warmed aluminum alloy melt into an aluminum alloy ingot through a launder, wherein Add Al-3Ti-B wire grain refiner in launder;

[0040] C. Hot rolling: After sawing and milling the smelted aluminum alloy ingot, heat it to 540°C, heat it for 12 hours, and roll it into aluminum alloy coil. The hot rolling deformation of the aluminum alloy coil is 85%. The final rolling temperature of hot-rolled coils is 300°C;

[0041] D, cold rolling: co...

Embodiment 3

[0046] A kind of 6060 aluminum alloy sheet material for curtain wall, comprises the following steps:

[0047] A. Ingredients: ingredients according to the following mass percentages: Si 0.45%, Fe 0.18%, Cu 0.03%, Mn 0.10%, Mg 0.55%, Cr 0.01%, Zn 0.04%, Ti 0.05%, other single impurities ≤0.05%, The total amount of impurities ≤ 0.15%, the balance is Al;

[0048] B. Smelting: put the prepared aluminum alloy raw materials except Ti in a smelting furnace for smelting, and then place them in a holding furnace for 5-10 hours to keep warm, and cast the warmed aluminum alloy melt into an aluminum alloy ingot through a launder, wherein Add Al-5Ti-0.2B silk grain refiner in launder;

[0049] C. Hot rolling: heat-treat the smelted aluminum alloy ingot inhomogeneously, hold it at 560°C for 8 hours before hot rolling, then lower the temperature to 520°C, roll it into aluminum alloy coils, and the hot-rolled deformation of aluminum alloy coils The content is 98%, and the final rolling temp...

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