What is the difference between aluminum magnesium alloy and magnesium aluminum alloy notebook?

Release time:

2023-06-08 16:34

notebook. Of course, there are many kinds of shell materials. The most popular one is the notebook shell made of metal materials. However, we are very curious about the difference between the notebook made of aluminum-magnesium alloy and magnesium-aluminum alloy. Below, we will introduce the advantages of these two materials.

The difference between aluminum-magnesium alloy and magnesium-aluminum alloy

aluminum-magnesium alloy

This is the most widely used type of notebook shell. It was first used by Apple MacBook shell, and later it was widely used in various notebooks. It can be seen from the name that this material is mainly composed of aluminum and magnesium, which is actually the same. 94% of the components are aluminum, magnesium only accounts for 5%, while the remaining chromium, iron and other elements add up to only 1%. Due to the addition of various elements, aluminum-magnesium alloy has significantly improved its chemical stability compared with pure aluminum. It is said that it is not easy to rust, at the same time, it is also relatively convenient to process. Any stamping and integrated forming are a piece of cake. In addition, aluminum-magnesium alloy has a big advantage in that the cost and appearance do not need to be beautified. It is believed that many users can be charmed by its outstanding metallic luster alone.

In addition, no matter what product it is, there will be disadvantages. The disadvantage of aluminum-magnesium alloy material is that the strength is not very good. The aluminum-magnesium alloy shell must be thick. In addition, the density of this material is relatively high. In addition, the thickness is relatively thick, which leads to the weight of the notebook increasing, which will affect the light and thin performance of the notebook.

magnesium aluminum alloy

friends familiar with the notebook all know that there is a magnesium aluminum alloy notebook shell. Don't think that this is a mistake made by the manufacturer. In fact, if the positions of the two elements are replaced, the composition of the product will be completely different. In the aluminum-magnesium alloy mentioned earlier, the aluminum element occupies an absolute advantage, and so on magnesium-aluminum alloy is naturally the magnesium element to play the leading role. The fact is that the content of magnesium in magnesium aluminum alloy is as high as 90%, the remaining 10% is composed of 9% aluminum and 1% zinc, and the content of the remaining manganese, silicon, iron and other elements is almost negligible.

Due to the change of composition, the performance of magnesium aluminum alloy and aluminum magnesium alloy is completely different. Although magnesium-aluminum alloy is not bad in strength, but the ductility is much worse than aluminum-magnesium alloy, so manufacturers can only use casting processing. At the same time, the texture and luster of the metal is also much worse than that of aluminum-magnesium alloy. Anyway, it is the feeling of gray and autumn. If you don't paint and beautify it, there is really nothing to sell. In addition, the advantage of magnesium-aluminum alloy is that the density is only 1.8g/cm3, which is much lower than aluminum-magnesium alloy. The use of this alloy can reduce the weight of the shell.

In addition, if you don't know how to distinguish whether the notebook is made of aluminum-magnesium alloy or magnesium-aluminum alloy, assuming that the manufacturer does not clearly mark the type of shell alloy, generally speaking, the unpainted one is aluminum-magnesium alloy, while the painted one is magnesium-aluminum alloy, because magnesium alloy products must be surface treated, the hardness of surface treatment will be significantly improved, and the texture will be more beautiful, unless some requirements are not so high, this kind of treatment will not be done.

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