What kind of shell material for laptops dissipates heat well?

At present, the materials of laptop shells are none other than PC BAS, PC-GF20, magnesium alloy and titanium alloy. Among them, "PC ABS" is engineering plastic, which is the most common in laptops, and can be found in almost every book. Or the entire shell, or just the top cover of the screen, or as small as the cover of the memory or hard disk; PC-GF20 can make a metal-like texture, which is difficult for ordinary people to distinguish; And only magnesium alloys and titanium alloys are real metals.

Among these materials, PC ABS is the cheapest, so almost all low-cost laptop shells are made of this material; PC-GF20 second, magnesium alloy is more expensive, the advantage is stronger than plastic, wear-resistant, light weight and easy to dissipate heat, feel good, mostly used in ultra-thin or smaller size of the book; Titanium alloy is the most expensive, compared with magnesium alloy, in addition to the difference in the metal itself, but also infiltrated into the carbon fiber material, so that the overall hardness is further strengthened, so it is known as "black gold steel", at present only some high-end this book is used. There are also some notebooks that use several materials, but are only applied to different parts of the case, such as some models with full built-in or built-in optical drives. Generally speaking, titanium alloy shell is the best, magnesium alloy is second, and engineering plastics are the worst.

They can be distinguished by reference to the number on the inner plate, but this can only be achieved by disassembling the machine. The easiest way is to touch the surface of the fuselage directly with your hands when the laptop is turned off, and if there is a cold feeling, it is the alloy material.

For the heat dissipation of this book, it is naturally better to use the metal chassis to dissipate heat, but this kind of machine also has a problem, that is, because with the help of the shell heat dissipation, the shell will feel hotter, especially the heat dissipation holes, and it will even be a little hot.

The shell is preferably plastic, it is better to buy a base, with three fans outside.

Integrated circuits are used extensively in computer components. As we all know, high temperature is the enemy of integrated circuits. So do netizens know what material the computer radiator has? For netizens who don't know, let's find out together.

1. The material of the heat sink refers to the specific material used in the heat sink. The thermal conductivity of each material is different, and it is ranked from high to low in order of thermal conductivity, which is silver, copper, aluminum, and steel.

2. However, if silver is used as a heat sink, it will be too expensive, so the best solution is to use copper. Although aluminum is much cheaper, it is obviously not as thermally conductive as copper (about 50 percent of copper). Commonly used heat sink materials are copper and aluminum alloys, both of which have their own advantages and disadvantages.

3. Copper has good thermal conductivity, but it is more expensive, difficult to process, too heavy (many pure copper heat sinks exceed the weight limit of CPU), small heat capacity, and easy to oxidize. The pure aluminum is too soft to be used directly, and the aluminum alloy used can provide sufficient hardness, and the advantages of aluminum alloy are low and lightweight, but the thermal conductivity is much worse than that of copper. Some radiators take their own strengths and embed a copper plate on the base of the aluminum alloy radiator.

For ordinary users, the use of aluminum heat sinks is enough to meet the heat dissipation needs.

In terms of notebook shell materials, the most common ones are ordinary ABS engineering plastics, magnesium aluminum alloy materials, carbon fiber composite materials, titanium alloy materials, etc. ABS, the Chinese name in the chemical industry is plastic alloy, which is currently the most widely used main material for notebooks, and is especially favored by low-end notebooks due to its low cost.

There is also a material called PC ABS, because this material has both the excellent heat and weather resistance, dimensional stability and impact resistance of PC resin, and the excellent processing fluidity of ABS resin. Therefore, it is used in thin-walled and complex-shaped products to maintain its excellent performance, as well as to maintain the formability of plastic and an ester composition material.

Magnesium-aluminum alloy material shell

Compared with ABS engineering plastics, notebooks made of magnesium aluminum alloy seem to be on a new level, which is better than ABS engineering plastics in terms of appearance, texture, and protection.

The significant drop in weight has made magnesium aluminum alloy an impeccable choice for consumers who are increasingly pursuing light and thin fashion. Coupled with the excellent heat dissipation capacity, the people who have a headache about the heat dissipation of the laptop at the moment have also found a better choice.

The above content reference: People's Daily Online - Thin shell bears the weight of thousands of catties Talk about the material of this shell.