Aluminum profiles are lighter in weight, and some aluminum alloys have strengths close to and beyond those of high-quality steel, because of the small molding rebound and better molding than stainless steel. At the same time has excellent electrical conductivity, thermal conductivity and corrosion resistance, in the industrial field is very often used. And we according to the processing method of aluminum alloy it is divided into deformed aluminum alloy and casting alloy, as well as also according to the number of aluminum and aluminum alloy is divided into 8 series.
1xxx series of date industry pure aluminum;
2xxx series dates Al-Cu, Al-Cu Mn alloy
3xxx series dates Al-Mn alloy;
4xxx series dates Al-Si alloy;
5xxx series dates Al-Mg alloy;
6xxx series dates Al-Mg-Si alloy, such as 6061, 6063 (basically used in door and window processing);
7xxx series dates Al-Mg-Si-Cu alloy;
8xxx series date other, means the alloy system other than above.
1xxx series
1xxx series has the highest aluminum content of all the series, and its purity can reach over 99%. Its aluminum molding is better, also very conducive to surface treatment, in the aluminum alloy his corrosion resistance is the best. 1xxx series of aluminum is relatively soft (the higher the purity of its strength will be lower), mainly used for decorative parts and interior parts. At the same time, the two digits behind the basic 1xxx series indicate the the lowest aluminum content of the series, the higher the value, the higher the purity.
1050 and 1100 mainly do chemical sanding, glossy, matte, normal effect, have more obvious material grain, coloring effect is also relatively good;
1080 and 1085 mainly do mirror aluminum is mainly used to do bright characters, matte effect, no obvious material grain.
2xxx series
2xxx series is basically aerospace aluminum used as a construction and is not commonly used in general industry. His hardness is relatively high, in which the orginal number of copper content is the highest, the basic copper content is about 3-5%. Among the representatives of the 2 series are 2024, 2A16, 2A02, etc..
3xxx series
3xxx series because of its good molding, good dissolution, and good corrosion resistance. It is usually used in tanks and tanks for liquid products, construction processing parts and construction tools, various lamp parts, and various pressure vessels and pipelines for thin plate processing.
Meanwhile, the aluminum bars of the 3xxx series are made of manganese element as the main material, with the content between 1.0 and 1.5, which is a good series of rust-proof function. The main representatives are 3003, 3105, 3A21 and so on.
4xxx series
4xxx series is commonly used in construction materials, machine parts, forging material, welding materials, etc., because it has a low melting point, good corrosion resistance, heat and wear-resistant properties. At the same time the soup flow is good, soldification shrinkage is less.
4xxx series usually silicon content in the 4.5-6.0% between the high silicon content and the corresponding strength is also increased. Aluminum rods of the 4xxx series represent 4A01.
5xxx series
5xxx series aluminum rods are common aluminum alloy series, mainly with magnesium, magnesium content between 3-5%. He has a low density, high tensile strength, high ductility characteristics. The weight of aluminum and magnesium alloy under the same area is lower than other series. 5xxx series mainly reperesents 5052, 5005, 5083, 5A05 series.
5052 is the most commonly used on the phone, for the medium strength of the representative of the aluminum alloy, with corrosion resistance, soluble joints and good molding characteristics, with high fatigue strength, seawater resistance is good, commonly used to do the strength requirements of high products. At the same time, it is suitable for casting molding method, not suitable for extrusion molding method. At the same time because of its coloring effect is not ideal for chemical sanding, and matte surface, but suitable for sandblasting process.
6xxx series (6063 series commonly used for doors and windows)
6xxx series mainly contains two elements, magnesium and silicon, and concentrates the advantages of 4xxx series and 5xxx series. With corrosion resistance, good oxidation resistance, while easy on the coating, processing performance is particularly good. The main representative is 6061 and 6063 series, of which 6061 used in cell phone more, 6063 used in doors and windows more. 6061 strength is higher than 6063, suitable for casting molding complex structure, can be done on the cell phone battery cover snap parts.
