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Preparation method of high-reflectivity mirror surface aluminum plate strip for building decoration

A mirror aluminum plate and high reflectivity technology, applied in the field of aluminum alloy materials, can solve the problems of large consumption of medicines, large environmental pollution, large energy consumption, etc., and achieve the effect of shortening the production cycle, reducing pollution and acid-base discharge

Inactive Publication Date: 2021-11-30
中铝河南洛阳铝加工有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above two processes have disadvantages such as large environmental pollution, large energy consumption, and large consumption of medicines.

Method used

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  • Preparation method of high-reflectivity mirror surface aluminum plate strip for building decoration
  • Preparation method of high-reflectivity mirror surface aluminum plate strip for building decoration

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Example 1: A method for preparing a high-reflectivity mirror-faced aluminum strip for architectural decoration. First, the alloy composition is formulated as follows in terms of mass percentage, Si=0.10%; Fe=0.08%; Cu=0.01%; Mn=0.01% ; Mg=0.02%: Zn=0.01%; Ti=0.02%, and the remaining Al and unavoidable impurities, and then prepared according to the following steps:

[0021] (1) Melting and semi-continuous casting: the melting temperature is 730°C, the semi-continuous casting temperature is 700~710°C, the casting speed is 50mm / min, and the cooling water temperature is 22±2°C;

[0022] (2) Homogenization treatment, after the ingot is cut from head to tail, the upper and lower sides are milled at 15mm, the homogenization temperature is 500°C, and the holding time is 12h;

[0023] (3) Hot rolling: the starting rolling temperature is 480°C, and the finishing rolling temperature is ≤280°C;

[0024] (4) Cold rolling, the billet is thinned from 7mm to 1mm, and the surface rough...

Embodiment 2

[0030] Example 2: On the basis of Example 1, the aluminum alloy used includes the following components by mass percentage: Si=0.20%; Fe=0.30%; Cu=0.1%; Mn=0.05%; Mg=0.05%: Zn=0.1%; Ti=0.05%, and the remaining Al and unavoidable impurities, then on the basis of the steps in Example 1, the mirror rolling process parameters in step (5) are adjusted as follows: mirror roll surface The roughness is 0.02 μm, rolling is carried out in 3 passes, the pass reduction rates are 5%, 40%, and 10% respectively, and the rolling speed is 60m / min; the process parameters of the remaining steps are the same as those in Example 1.

[0031] The surface roughness of the prepared mirror aluminum is 0.012μm, the reflectivity is 91%, the gloss is 870GU, the tensile strength is 157MPa, the yield strength is 144MPa, and the elongation is 8.7%, which meets the requirements of architectural decoration for the surface performance and mechanical properties of mirror aluminum.

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Abstract

The invention discloses a preparation method of a high-reflectivity mirror surface aluminum plate strip for building decoration. The preparation method comprises the following steps of (1) smelting and semi-continuous casting; (2) homogenizing heat treatment; (3) hot rolling; (4) cold rolling; (5) mirror surface rolling; and (6) cleaning. Before the step (1) is carried out, a selected aluminum alloy comprises the following components including, by mass, less than or equal to 0.5% of (Si + Fe), less than or equal to 0.1% of Cu, less than or equal to 0.05% of Mn, less than or equal to 0.05% of Mg, less than or equal to 0.1% of Zn, less than or equal to 0.05% of Ti and the balance Al and inevitable impurities. In the step (5), a mirror roller with the surface roughness smaller than or equal to 0.02 micrometer is adopted, rolling is conducted for 3-5 passes, the single-pass reduction rate ranges from 5% to 40%, and the rolling speed is smaller than or equal to 60 m / min. In the process of the step (6), mixed acid of sulfuric acid and hydrogen fluoride is adopted, and the cleaning time is 10 s. After the prepared mirror surface aluminum plate strip is cleaned and dried, the surface has a mirror surface effect, the reflectivity is larger than or equal to 90%, and the glossiness is larger than or equal to 800 GU. According to the method, the surface roughness of an aluminum material is gradually reduced by regulating and controlling the alloy components, the surface roughness of the roller, the mirror surface rolling process and the cleaning process, and the technical requirement of building decoration for high-reflectivity mirror surface aluminum is met.

Description

technical field [0001] The invention belongs to the field of aluminum alloy materials, and in particular relates to a preparation method of a high-reflectivity mirror-surfaced aluminum strip for architectural decoration. Background technique [0002] With the improvement of people's living standards, mirror aluminum is gradually favored by people in the field of architectural decoration, and its application scope is gradually expanding. For example, mirror aluminum is used in TV background walls, ceilings, aluminum buckle ceilings, decorative panels, bathroom decoration and other products. Because of its smooth surface, aluminum not only adds a sense of fashion, art and technology, but also increases the brightness of the room due to its reflectivity, giving people a refreshing feeling. At the same time, the crisis of lack of wood can be alleviated, and the market prospect of mirror aluminum is good. [0003] Due to the low surface reflectivity of the rolled aluminum alloy ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C1/02C22C21/00C22C21/02C22C21/06C22C21/08C22C21/10C22C21/12C22C21/14C22C21/16C22C21/18C22F1/04C22F1/043C22F1/047C22F1/053C22F1/057C23G1/12B21B3/00
CPCC22C1/026C22C21/02C22C21/00C22C21/06C22C21/08C22C21/10C22C21/12C22C21/14C22C21/16C22C21/18C23G1/125C22F1/04C22F1/043C22F1/047C22F1/053C22F1/057B21B3/00B21B2003/001
Inventor 徐巍昆高崇刘辉吴广奇赖爱玲周玉立
Owner 中铝河南洛阳铝加工有限公司