Preparation process of high-light high-brightness anode oxidation casting sheet

A technology of anodic oxidation and preparation technology, which is applied in the field of aluminum alloy, can solve the problems of limiting the development space of aluminum alloy precision casting plates, the anodic oxidation effect is not ideal, and cannot meet customer requirements, so as to improve the strength and anodic oxidation effect, and improve the plate quality. The effect of strength and anodizing quality, fine and uniform structure

Inactive Publication Date: 2019-04-12
广西南南铝加工有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The current aluminum alloy precision casting plates are mainly 5-series aluminum alloys, such as 5083 and 5052, etc. The shortcomings of the current production of 5052, 5083 and other Al-Mg alloy precision casting plates are as follows: 1. Long-term medium and low temperature homogenization heat treatment and precise control are required Improper control of the heating and cooling rate can easily lead to incomplete release of internal stress and pr

Method used

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  • Preparation process of high-light high-brightness anode oxidation casting sheet
  • Preparation process of high-light high-brightness anode oxidation casting sheet

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] 1. The composition is smelted according to the A1 alloy in Table 1. After degassing and filtering, the hydrogen content of the obtained aluminum alloy melt is 0.09ml / 100gAl; semi-continuous casting is carried out to cast a flat ingot with a thickness of 450*1550*6000mm.

[0030] 2. Turn the four sides and one side of the cast ingot to 20mm, remove the casting segregation layer, cut and rough mill the surface into 200*1530*6000mm.

[0031] 3. Homogenization heat treatment: raise the temperature of the ingot to 595°C, the heating rate is 20°C / h, and keep the temperature for 40h.

[0032] 4. Perform solution quenching on the slit plate, the heating rate is 10°C / min, the temperature is raised to 580°C, and the temperature is kept for 300min.

[0033] 5. Stretch the above-mentioned quenched plate, the stretching rate is 15 mm / min, and the stretching rate is 3.0%.

[0034] 6. Aging, aging temperature 185 ℃, heat preservation 10h;

[0035] 7. Cutting into 10*1420*5000mm, saw...

Embodiment 2

[0039] 1. The composition is smelted according to the B1 alloy in Table 1. After degassing and filtration, the hydrogen content is 0.18ml / 100gAl, and semi-continuous casting is carried out to cast a flat ingot with a thickness of 650*2650*4500mm.

[0040] 2. Turn the four sides and one side of the cast ingot to 10mm, remove the casting segregation layer, cut and mill the surface into 15*2600*4500mm.

[0041] 3. Homogenization heat treatment: raise the temperature of the ingot to 560°C, the heating rate is 70°C / h, and keep the temperature for 15h.

[0042] 4. Perform solution quenching on the slit plates at a heating rate of 120°C / min, raise the temperature to 500°C, keep warm for 5 minutes, and finish the heat preservation, quickly quench with high-pressure water, cool at a cooling rate of 100°C / s, and cool to room temperature.

[0043] 5. Stretch the above-mentioned quenched plate, the stretching rate is 6mm / min, and the stretching rate is 2.1%;

[0044] 6. Aging, aging temp...

Embodiment 3

[0048] 1. The composition is smelted according to the C1 alloy in Table 1. After degassing and filtration, the hydrogen content is 0.12ml / 100gAl, and semi-continuous casting is carried out to cast a flat ingot with a thickness of 520*1650*4000mm.

[0049] 2. Turn the four sides and one side of the cast ingot by 5mm, remove the casting segregation layer, cut and mill the surface into 80*1830*4000mm.

[0050] 3. Homogenization heat treatment: raise the temperature of the ingot to 570°C, the heating rate is 40°C / h, and keep the temperature for 30h.

[0051] 4. Perform solution quenching on the slit plate, the heating rate is 50°C / min, the temperature is raised to 535°C, and the temperature is kept for 150min.

[0052] 5. Stretch the above-mentioned quenched plate, the stretching rate is 1.5mm / min, and the stretching rate is 1.5%;

[0053] 6. Aging, aging temperature 160 ℃, heat preservation 25h; sawing and cutting 80*1700*3000mm.

[0054] 7. Slitting into 39*1700*3000mm, sawing s...

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Abstract

The invention belongs to the technical field of aluminum alloys, and relates to a preparation process of a high-light high-brightness anode oxidation casting sheet. The preparation process of the high-light high-brightness anode oxidation casting sheet comprises the following steps of smelting and casting an aluminum alloy cast ingot, and degassing and filtering aluminum alloy melt in the smeltingand casting processes; turning and slitting the obtained aluminum alloy cast ingot; carrying out homogenization heat treatment on the obtained aluminum alloy cast ingot; carrying out solid solution quenching on the obtained material; stretching the obtained quenched sheet; and carrying out aging treatment on the obtained material to obtain a required product. The components and the casting process of the produced precision casting sheet are strictly controlled, a specific homogenization heat treatment process, a solid solution quenching process, a stretching process, an aging process and a machining process are adopted, it is guaranteed that the sheet is fine and uniform in structure, free of rolling texture, and extremely low in internal stress, and the strength and the anodic oxidationeffect of the casting sheet are improved.

Description

technical field [0001] The invention belongs to the technical field of aluminum alloys, and relates to a preparation process of a high-gloss high-brightness anodized cast plate. Background technique [0002] Aluminum alloy casting plate is a new type of aluminum alloy product that is not hot-rolled after casting, but only heat-treated and machined. At present, this product is widely used in transportation, machinery and electronics, molds, high-end precision instruments and other fields. . The existing conventional aluminum alloy cast plates are 5083 and 5052 cast plates, which are obtained through melting, casting, soaking, cutting, milling, etc., and the cast plates have a specific metallurgical structure and quite ideal stress release in the cast state, so After high-speed cutting, there is almost no deformation and distortion. The specific grain structure of the cast product is uniform and evenly distributed. Compared with the rolled product, the structure is distribute...

Claims

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Application Information

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IPC IPC(8): C22C21/08C22C1/02C22F1/047C22F1/05B21C37/02
CPCB21C37/02C22C1/026C22C21/08C22F1/047C22F1/05
Inventor 赵启忠莫灼强何建贤朱希一蒋秋妹王华春张新明
Owner 广西南南铝加工有限公司
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