What are the benefits of magnesium alloy reinforced chassis? Notebook .

Big brother upstairs, don't mess around if you don't know! Who said that magnesium alloy heat dissipation is not good The main element of aluminum-magnesium alloy is generally aluminum, and then a small amount of magnesium or other metal materials are mixed to strengthen its hardness. Because it is a metal, its thermal conductivity and strength are particularly outstanding.

Aluminum-magnesium alloy has light weight, low density, good heat dissipation and strong compressive resistance, which can fully meet the requirements of high integration, lightness, miniaturization, anti-collision, electromagnetic shielding and heat dissipation of 3C products. It is several times harder than traditional plastic cases, but only one-third the weight of the latter, and is often used in the shells of mid-to-high-end ultra-thin or smaller notebooks. Moreover, the silver-white magnesium-aluminum alloy shell can make the product more luxurious, beautiful, and easy to color, and can be changed into a personalized powder blue and pink through the surface treatment process, adding a lot of color to the laptop, which is incomparable to engineering plastics and carbon fiber.

Therefore, aluminum-magnesium alloy has become the preferred shell material for portable laptops, and most manufacturers of notebook computer products use aluminum-magnesium alloy shell technology. Disadvantages: magnesium-aluminum alloy is not very strong and wear-resistant, it will appear dull after a long time, the cost is higher, and the molding is more difficult than ABS (stamping or die-casting process is required), so laptops generally only use aluminum-magnesium alloy on the top cover, and rarely use aluminum-magnesium alloy to manufacture the entire chassis.

I advise the landlord not to use First, the firmness of the current chassis is definitely worth reassuring 2. The alloy box is expensive 3 days of heat heat dissipation is a big problem The alloy will make the temperature gather and cannot be discharged.

This is difficult to verify

If the metal is measured for composition, the metal composition will definitely need to be reacted to.

After all, we can't knock on a shell and throw it in the laboratory to do the composition test, and the advantage of aluminum-magnesium is that it is gold.

The strength and elasticity per unit weight are higher than those of plastic.

It is lighter than other metals for corrosion protection.

So you say. Like plastic, it is not plastic, it should be aluminum-magnesium alloy

Aluminum-magnesium alloy, its main element is aluminum, and then mixed with a small amount of magnesium or other metal materials to strengthen its hardness. Magnesium aluminum alloy is light and easy to dissipate heat, so it is used a lot in the pursuit of ultra-thin models, and it is easy to process and the cost is moderate. Many manufacturers like to take the magnesium-aluminum alloy shell as a selling point, emphasizing"Aircraft Materials"And so on, and therefore, consumers have gradually recognized notebooks with shells of this material and regarded it as a standard for purchasing laptops.

Because of the excellent performance of magnesium aluminum alloy, it has become the best material for mainstream laptop shells, and almost all of the mid-to-high-end laptops of international first-line manufacturers use magnesium aluminum alloy materials. Acer's Acer 4820TG-332G32MN is a good price-performance ratio, and now it is priced at 4899, which is also quite suitable.

The aluminum-magnesium alloy case is obviously more durable than the plastic one.

And the metal case can also act as an electromagnetic shield, so that when the laptop is in a strong electromagnetic environment (such as a mobile phone signal), it can reduce interference with its internal working parts!

The advantage is that it is very good-looking, very lightweight, quite cool, quite shiny, not easy to damage, the disadvantage is that it is easy to produce small crossings, once it is irreversible, but it cannot be seen if you don't look carefully, so it is very good to choose the aluminum-magnesium shell I use Dell M170, pure aluminum-magnesium shell, very cool.

Plastic housings are susceptible to wear and tear, even with engineering plastics. Especially the silver and white ones, after a long time, the place where you type by hand will be ugly. Hehe.

The weight of magnesium aluminum alloy is about the same as plastic, but it is strong and wear-resistant, has good drop resistance and shock resistance, and is easy to dissipate heat. The only bad thing is that the products used here are too expensive...

This is difficult to verify

If the metal alloy is tested for composition, it must be the metal composition to react, and we can't knock on a shell and throw it into the laboratory to do the composition test.

The strength and elasticity per unit weight are higher than those of plastic.

It is lighter than other metals for corrosion protection.

So you say. Like plastic, it is not plastic, it should be aluminum-magnesium alloy

High hardness, light weight, beautiful and fashionable, high temperature resistance, good heat dissipation.

Metal has good heat dissipation, beautiful and lightweight.

The best thing is that it doesn't oxidize, it's permanently beautiful, and the disadvantage is that it's not too strong.

Please see the following information: The most important thing is light, environmentally friendly anti-corrosion light, thin, short and small aluminum-magnesium alloy materials.

Commonly used structural alloys (magnesium specific gravity, aluminum, titanium, iron, copper, zinc, aluminum-magnesium alloy materials are quite good choices. First of all, the specific gravity of aluminum alloy materials is light, about 1 3 of the specific gravity of heavy metals such as copper and ironExcellent corrosion resistance, there is a layer of colorless and dense oxide film in the air, which has a protective effect, and can prevent corrosion more effectively through artificial anodizing; Good electrical and thermal conductivity, electrical conductivity is about 60 65% of copper, thermal conductivity is about 2 3 of copper, about 3 times of iron, and about 10 times that of stainless steel; Good processability and extrusion, can extrude complex shapes; It is easy to weld and not easy to brittle at low temperature, with high strength per unit weight and good impact resistance. In addition, the characteristics of magnesium alloy materials include light weight (small specific gravity), good heat dissipation function (heat transfer coefficient 51W mk), easy to obtain raw materials (crustal content; Seawater content, electromagnetic wave shielding effect and other advantages.

Looking at the above descriptions, aluminum-magnesium alloy materials have their advantages in future development. In terms of application, magnesium alloy material has better shock resistance than aluminum alloy material, and can be used for electronic component brackets, shock absorbers and pneumatic tools that are sensitive to vibration.

Handling procedures for the application of aluminum-magnesium alloy materials.

Magnesium alloy material has the above-mentioned excellent characteristics, in line with the conditions of the new generation of environmental protection and sustainable management, and is the best choice to replace steel and aluminum. However, due to the high chemical activity of magnesium metal, it is easy to produce galvanic corrosion, so special attention needs to be paid in smelting and manufacturing, and it is more difficult than other metals in anti-corrosion treatment. Therefore, in order to make the application of magnesium alloy materials more extensive, there must be more treatment procedures for the corrosion mechanism, anti-corrosion mechanism, surface treatment technology and anti-corrosion design of the workpiece.

Table 1 shows that magnesium is the most susceptible metal to electrochemical corrosion, so the anti-corrosion treatment of magnesium alloy materials is more difficult than that of other metal materials. The process of processing can be shown in Figure 1.

The main thing is light, but it has nothing to do with radiation protection, unless the fuselage is made of lead, it is radiation protection.

The main thing is that it is light, and the radiation protection may also be a little.

I paid the money last Sunday. Today Dell also says in production. If as promised by the sales rep. It should have arrived today. Go in this case. The devil knows when.

When buying Dell, you must be prepared.

It takes a month or two to be ready.

Hello, you can go to our Dell technical forum to check the information, the content here is very comprehensive.

There are many uses, for example, to make cars out of magnesium alloys.

There are many uses, such as being used to make jewelry such as bracelets, etc., because magnesium can be implanted in the human body and is very biocompatible. Not only that, but it also has:"Beauty"The moral of the word.

First, carbon fiber is more wear-resistant. Carbon fiber is a special fiber composed of the element carbon. It has the characteristics of high temperature resistance, friction resistance, electrical conductivity, thermal conductivity and corrosion resistance, and the shape is fibrous, soft, and can be processed into various fabrics, because of its graphite microcrystalline structure along the fiber axis, so it has high strength and modulus along the fiber axis.

Carbon fiber has a low density and therefore has a high specific strength and specific modulus.

Second, carbon fiber has greater toughness. Carbon fiber composite material is made of organic fiber through a series of heat treatment, carbon content higher than 90% inorganic high-performance fiber, is a new material with excellent mechanical properties, with the inherent characteristics of carbon materials, but also the soft processability of textile fibers, is a new generation of reinforced fiber.

1. Different characteristics.

A specialty fiber composed of the element carbon. It has the characteristics of high temperature resistance, friction resistance, electrical conductivity, thermal conductivity and corrosion resistance, and the shape is fibrous, soft, and can be processed into various fabrics, because of its graphite microcrystalline structure along the fiber axis, so it has high strength and modulus along the fiber axis.

Magnesium alloy is an alloy composed of magnesium based on magnesium and other elements. Its characteristics are: small density (about magnesium alloy), high strength, large elastic modulus, good heat dissipation, good shock absorption, greater impact load capacity than aluminum alloy, good corrosion resistance to organic matter and alkali.

2. The density is different.

Carbon fiber has a low density and therefore has a high specific strength and specific modulus. The main use of carbon fiber is as a reinforcing material to composite with resins, metals, ceramics and carbon to make advanced composite materials. The specific strength and specific modulus of carbon fiber reinforced epoxy resin composites are the highest among existing engineering materials.

Although the specific gravity of magnesium alloy is heavier than that of plastic, the strength and elasticity per unit weight are higher than that of plastic, so in the case of parts with the same strength, magnesium alloy parts can be made thinner and lighter than plastic. In addition, since the specific strength of magnesium alloy is higher than that of aluminum alloy and iron, the weight of aluminum or iron parts can be reduced without reducing the strength of the parts.

3. Different uses.

It is used in the aircraft manufacturing industry to improve the impact toughness of composite materials, high-temperature filter media in nuclear reactors, media for separating biomolecular serum and plasma) and activated carbon fibers, which will develop greatly with the development of science and engineering. In the near future, there will be significant progress in the stabilization process and continuous production of gas phase grown carbon fibers, and the date of industrial production is not expected to be too far away.

At present, magnesium-aluminum alloy is the most widely used, followed by magnesium-manganese alloy and magnesium-zinc-zirconium alloy. It is mainly used in aviation, aerospace, transportation, chemical, rocket and other industrial sectors. The lightest metal among practical metals, magnesium has a specific gravity of about 2 3 of aluminum and 1 4 of iron.

It is the lightest metal among practical metals, with high strength and high rigidity.

The aluminum alloy of the notebook shell is not comparable to carbon fiber, which is more wear-resistant (harder) and tougher (less prone to deformation or cracking by sudden impact), and these two materials are not of the same order.

The notebook shell carbon fiber and magnesium alloy can be compared, and the difference between the two is not too far behind.

Carbon fiber is enough for the budget, much better than aluminum alloy, but it's not cheap either.

I can only say that the carbon fiber shell is not so godly, it is difficult to say how much Lenovo's ThinkPad carbon fiber is, I have a 6 pound in the IBM era, and my knee slipped on the fan and smashed the plastic fan for 30 yuan. But the carbon fiber plastic sense is very large, the old book and the Lenovo era are different, the appearance is always like not clean, the Lenovo era will not be, and the plastic shell is not much different!

As for the strength, I haven't seen it broken, it's not good to evaluate, it's definitely stronger than plastic, but magnesium aluminum alloy is not easy to break. And the magnesium aluminum alloy is high-end and atmospheric!

High-end machines do not mean that magnesium aluminum alloy will be used as the material, the shell of the general composite material is magnesium aluminum alloy on the top, and the bottom is ABS engineering plastic.

I know that there are Haier W32、Lenovo Tianyi,

There are general brands, but they are not common.

A high-end business jet or a portable function can be used, but there are not many magnesium aluminum alloys, and now the high-end ones are made of carbon fiber, which is still waiting for you to buy it and look at it on the spot, the notebook is updated too fast.

IBM notebook bar.

There are also most brands of high-end machines that are made of aluminum-magnesium alloy.

The Lenovo ThinkPad X61 is, the T61 is not. I'm using both computers.