A kind of production method of aluminum plate and aluminum strip for cosmetic mirror aluminum cover

A technology of aluminum cover aluminum plate and cosmetics, which is applied in the production of aluminum strips and the field of aluminum plates for cosmetic mirror aluminum covers, which can solve problems such as tissue segregation, stamping cracks, uneven grains, etc., and achieve large additions, no streaks, and a finer surface. degree of effect

Active Publication Date: 2017-12-26
HENAN MINGTAI AL INDUSTRIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the above problems, the present invention provides a production method of aluminum plates and strips for cosmetic mirror aluminum covers, so as to solve the problems of structure segregation, uneven crystal grains, stamping cracks, high ear-making rate, and structure stripes in the prior art. , poor reflectivity and other quality problems

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  • A kind of production method of aluminum plate and aluminum strip for cosmetic mirror aluminum cover

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example 1

[0030] An aluminum plate and aluminum strip for cosmetic mirror aluminum cover, the mass percentage of its chemical composition is Al≥99.85%, Ti0.020~0.030%, and the rest are impurity elements, among which Si≤0.10%, Fe≤0.10%, Cu <0.01%, Mn<0.01%, Mg<0.01%, Cr<0.01%, Zn<0.01%.

[0031] The production method of the aluminum plate and strip for the above-mentioned cosmetic mirror aluminum cover includes the following steps: (1) Melting: 30 tons of aluminum ingots with a purity ≥ 99.9% are put into the melting furnace, and melted for 4 hours to obtain aluminum with a melt temperature of 720-750°C. Stir the molten aluminum at 720-750°C for 5 minutes; after the smelting is completed, use a nitrogen-chlorine mixture to refine the molten aluminum for 30 minutes in a stationary furnace and remove surface scum. The temperature of the stationary furnace is controlled at 710-730°C;

[0032] (2) Casting: The molten aluminum is introduced into the casting device from the static furnace thro...

example 2

[0047] An aluminum plate and aluminum strip for cosmetic mirror aluminum cover, the mass percentage of its chemical composition is Al≥99.85%, Ti0.020~0.030%, and the rest are impurity elements, among which Si≤0.10%, Fe≤0.10%, Cu <0.01%, Mn<0.01%, Mg<0.01%, Cr<0.01%, Zn<0.01%.

[0048] The production method of the aluminum plate and the aluminum strip for the above-mentioned cosmetic mirror aluminum cover comprises the following steps:

[0049] (1) Melting: Put 32 tons of aluminum ingots with a purity ≥ 99.9% into the melting furnace, melt for 5 hours to obtain molten aluminum with a melt temperature of 720-750°C, and stir the molten aluminum at 720-750°C for 5 minutes; after the smelting is completed, Refining the liquid aluminum for 32 minutes with nitrogen-chlorine mixed gas in the static furnace and removing the scum on the surface, the temperature of the static furnace is controlled at 710-730°C;

[0050] (2) Casting: The molten aluminum is introduced into the casting dev...

example 3

[0065] An aluminum plate and aluminum strip for cosmetic mirror aluminum cover, the mass percentage of its chemical composition is Al≥99.85%, Ti0.020~0.030%, and the rest are impurity elements, among which Si≤0.10%, Fe≤0.10%, Cu <0.01%, Mn<0.01%, Mg<0.01%, Cr<0.01%, Zn<0.01%.

[0066] The production method of the aluminum plate and the aluminum strip for the above-mentioned cosmetic mirror aluminum cover comprises the following steps:

[0067] (1) Melting: Put 34 tons of aluminum ingots with a purity ≥ 99.9% into the melting furnace, melt for 4.5 hours to obtain molten aluminum with a melt temperature of 720-750°C, and stir the molten aluminum for 5 minutes at 720-750°C; after the smelting is completed, Refining molten aluminum for 34 minutes with nitrogen-chlorine mixed gas in the static furnace and removing surface scum, the temperature of the static furnace is controlled at 710-730°C;

[0068] (2) Casting: The molten aluminum is introduced into the casting device from the ...

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Abstract

The invention relates to a production method of aluminum plates and aluminum strips for cosmetic mirror surface aluminum caps. The manufacturing process comprises the steps of smelting, casting, homogenizing treatment, hot rolling, cold rolling, intermediate annealing and cold rolling of finished products. In the smelting process, a bottom-mounted electromagnetic stirring system is adopted; in the casting process, an automatic speed regulation system is adopted; in the hot rolling system, a hot rough rolling pass automatic distribution system is adopted; and in the intermediate annealing system, a large natural gas furnace is adopted for annealing. Through cooperation of all the procedures, product ingredients can be made uniform, and finished products are uniform in surface roughness, fine, smooth, good in smooth finish, free of surface defects such as stripes, black lines and color difference; the mirror surface effect is good after materials are subjected to anodic oxidation and electroplating, and the application requirements for deep drawing and tensile properties of the aluminum plates and the aluminum strips for the cosmetic mirror surface aluminum caps are met.

Description

technical field [0001] The invention relates to an aluminum alloy and a production method thereof, in particular to a production method of an aluminum plate and an aluminum strip for an aluminum mirror cover of cosmetics. Background technique [0002] Aluminum caps made of aluminum alloy are the raw materials for high-end cosmetic bottle caps, and cosmetic bottle caps are generally mirror aluminum caps. General requirements for mirror aluminum cover: high brightness after oxidation, good coloring effect, smooth surface after stamping, low ear-making rate, etc. At present, the ordinary mirror aluminum cover in the market is a 1070H12 state product. Due to the high content of Si and Fe impurities in the composition of the 1070H12 product, segregation is prone to occur during casting and subsequent production, resulting in uneven grain size of the material, and the material is easily oxidized after anodic oxidation and electroplating. Surface defects caused by material texture...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C21/00C22C1/02C22C1/06C22F1/04B23P15/00
CPCB23P15/00C22C1/026C22C1/06C22C21/00C22F1/04
Inventor 李国锋何延武柴建胜梁忠
Owner HENAN MINGTAI AL INDUSTRIAL CO LTD
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