There are many specifications and models of thin aluminum sheet metal. According to alloying elements, aluminum and aluminum alloys are divided into nine categories. According to thickness, such as 1/8 aluminum sheet. Among them, aluminum and aluminum alloys of series 1, 3, 5, 6, and 7 are commonly used in daily life, and other series are used less. Class 1: Series 1: Industrial pure aluminum; Class 2: Series 2: Copper alloy aluminum; Class 3: Series 3: Manganese alloy aluminum; Class 4: Series 4: Silicon alloy aluminum; Class five: Series 5: Magnesium Series alloy aluminum; six types: 6 series: magnesium-silicon alloy aluminum; seven types: 7 series: zinc-magnesium-copper alloy aluminum; eight types: 8 series: other alloy aluminum; nine types: 9 series: spare alloy aluminum. Thin aluminum sheet metal is also widely used.
Where can thin aluminum sheet metal be used? As a huge aluminum alloy series, it has many uses. Here are some commonly used uses. thin aluminum sheet metal
Commonly used in building profiles, irrigation pipes, extrusion materials for vehicles, benches, furniture, elevators, fences, etc.; as well as aircraft, ships, light industry sectors, buildings, advertising signs, chemical equipment, sheet metal processing parts, deep drawing Or spinning concave vessels, welding parts; heat exchangers, clock surfaces and disc surfaces, nameplates, kitchenware, decorations, reflective appliances, etc.
Density: Aluminum is a very light metal with a density of 2.71 g/cm3, which is about 1/3 of the density of pure copper.
Electrical and thermal conductivity: Since the aluminum content of the pure aluminum sheet is at least 95%, the thermal and electrical conductivity of pure aluminum is good. When the section and length of aluminum are the same as copper, the conductivity of aluminum is about 61% of copper.
Chemical characteristics: Pure thin aluminum sheet metal has good resistance to atmospheric decay, because a dense aluminum oxide film is easily formed on its surface, which can prevent further oxidation of internal metals. Aluminum basically does not react with concentrated nitric acid, organic acids and food. Pure aluminum sheet has extremely high plasticity (ψ=80%) and can easily withstand various forming processes, but its strength is too low. It can only be used as a structural material after cold deformation strengthening or alloying to increase its strength.
If an appropriate amount of certain alloying elements is added to the pure aluminum sheet, and then cold-worked or heat-treated, an aluminum alloy is formed. Copper, magnesium, silicon, manganese, zinc, these elements are common elements, sometimes a trace amount of titanium, boron, chromium, etc. are added.
Aluminum alloy sheet metal can be divided into cast aluminum alloy and deformed aluminum alloy. Deformed aluminum alloys are usually made into plates, pipes, bars and various profiles by hot or cold pressure processing, that is, rolling, extrusion and other processes. Casting aluminum alloy is the direct pouring of liquid metal in the sand mold to make various parts with complex shapes.
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