Anticorrosion hard aluminum alloy sectional material and preparation process thereof

Abstract

The invention relates to an anticorrosion hard aluminum alloy sectional material and a preparation process thereof. The anticorrosion hard aluminum alloy section material consists of the following elements by weight percent: 88.5 percent of Al, 0.7 percent of Si, 1.4 percent of Fe, 0.95 percent of Mn, 0.9 percent of Mg, 2.4 percent of Zn, 4.6 percent of Cu, 0.35 percent of Ni and 0.2 percent of Ti. The preparation process comprises the following steps: step S1: melting an aluminum material, and charging Si, Fe, Mn, Mg, Zn, Cu, Ni and Ti according to the ratio; step S2: controlling high-temperature casting, and forming aluminum-base solid solution; step S3: carrying out anode oxidation, purification and turning treatment, and refining crystal grains; step S4: splicing molding by adopting a mold. The anticorrosion hard aluminum alloy sectional material has good anticorrosion characteristics and excellent mechanical strength and is better than an ordinary universal sectional material for laboratory.

Description

technical field [0001] The invention relates to the technical field of aluminum alloys, in particular to a corrosion-resistant hard aluminum alloy profile and a preparation process thereof. Background technique [0002] At present, most of the materials used in the laboratory furniture industry are steel materials, but a thin layer of plastic powder is coated on the surface to resist the special corrosive environment of the laboratory, but there are two defects: 1. Steel The material itself is not anti-corrosion, especially after contacting with oxygen, it will form iron oxide, which will accelerate the corrosion rate of Fe; 2. The inner wall of the steel pipe cannot be coated, and in the laboratory environment, acid and water vapor will enter the inner wall through various processing ports and cause corrosion. A chemical reaction occurs, especially during use, as long as there is a slight scratch on the surface, Fe will be exposed to corrosive air. As a result, the life of...

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Problems solved by technology

[0002] At present, most of the materials used in the laboratory furniture industry are steel materials, but a thin layer of plastic powder is coated on the surface to resist the special corrosive environment of the laboratory, but there are two defects: 1. Steel The material itself is not anti-corrosion, especially after contacting with oxygen, it will form iron oxide, which will accelerate the corrosion rate of Fe; 2. The inner wall of the steel pipe cannot be coated, and in the laboratory environment, acid and water vapor will enter the inner wall through various processing ports and cause corrosion. A chemical reaction occurs, especially during use, as long as there is a slight scratch on the surface, Fe will be exposed to corrosive air

As a result, the life of laboratory furniture is shortened, and it usually becomes rusty in 1-3 years. The country invests about 3 billion in laboratory construction every year, which will directly cause huge waste of national investment and even leave a serious safety hazard. Hidden danger

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