Types and characteristics of aluminum profile surface treatment

Aluminum profiles are aluminum materials with different cross-section shapes obtained by hot melting and extrusion of aluminum bars The production process of aluminum profile mainly includes three processes: casting, extrusion and coloring Among them, coloring mainly includes: oxidation, electrophoretic coating, fluorocarbon spraying, powder spraying, wood grain transfer printing and other processes According to the use, it can be divided into the following categories: 1 Architectural aluminum profiles (divided into two kinds of doors and windows and curtain walls) 2 Radiator aluminum profiles 3 General industrial aluminum profile: it is mainly used for industrial production and manufacturing, such as automatic mechanical equipment, framework of cover and customized mold opening of each company according to their own mechanical equipment requirements, such as assembly line conveyor belt, elevator, dispensing machine, testing equipment, shelf, etc., most of which are used in electrical machinery industry and dust-free room 4 Aluminum alloy profile of rail car structure: mainly used for manufacturing of rail car body 5 Mount Aluminum profiles, make them into aluminum alloy picture frames, mount various exhibitions and decorative paintings Classification by alloy: It can be divided into 1024, 2011, 6063, 6061, 6082, 7075 and other alloy grade aluminum profiles, of which 6 series are the most common The difference of different grades is that the proportion of various metal components is different In addition to the commonly used door and window aluminum profiles such as 60 series, 70 series, 80 series, 90 series, curtain wall series and other building aluminum profiles, there is no clear model distinction for industrial aluminum profiles Most of them The production plants are processed according to the actual drawings of customers Compared with other metal materials, aluminum and aluminum alloy have the following characteristics: 1 The density of aluminum and aluminum alloy is close to 2.7g/which is about 1 / 3 of iron or copper 2 High strength aluminum and aluminum alloy After a certain degree of cold processing, the aluminum alloy with some grades of matrix strength can be strengthened by heat treatment 3 The conductivity and thermal conductivity of aluminum are second only to silver, copper and gold 4 The surface of aluminum with good corrosion resistance is easy to produce a dense and firm Al2O3 protective film, which can protect the matrix from corrosion Through artificial anodizing and coloring, the cast aluminum alloy with good casting performance or the wrought aluminum alloy with good processing plasticity can be obtained 5 The cast aluminum alloy with good casting performance or the wrought aluminum alloy with good processing plasticity can be obtained by easily processing and adding certain alloy elements Source: chinalco.com