笔记本电脑常见的外壳用料有：合金外壳有铝镁合金与钛合金，塑料外壳有碳纤维、聚碳酸酯PC和ABS工程塑料。铝镁合金：其导热性能和强度尤为突出。铝镁合金质坚量轻、密度低、散热性较好、抗压性较强，其硬度是传统塑料机壳的数倍，但重量仅为后者的三分之一。铝镁合金成了便携型笔记本电脑的首选外壳材料，大部分厂商的笔记本电脑产品均采用了铝镁合金外壳技术。缺点：镁铝合金并不是很坚固耐磨，成本较高，比较昂贵，而且成型比ABS困难。钛合金：钛合金与镁合金除了掺入金属本身的不同外，最大的分别之处，就是还渗入碳纤维材料，无论散热，强度还是表面质感都优于铝镁合金材质，加工性能更好。关键性的突破是强韧性更强、而且更薄。钛合金厚度只有镁合金的一半，可以让笔记本电脑体积更娇小。
钛合金缺点就是十分昂贵。碳纤维：碳纤维既拥有铝镁合金高雅坚固的特性，又有ABS工程塑料的高可塑性。它的外观类似塑料，但是强度和导热能力优于普通的ABS塑料。据IBM公司的资料显示，碳纤维强韧性是铝镁合金的两倍，而且散热效果最好。若使用时间相同，碳纤维机种的外壳摸起来最不烫手。碳纤维的缺点是成本较高。此外，碳纤维机壳还有一个缺点，就是如果接地不好，会有轻微的漏电感。聚碳酸酯PC：是笔记本电脑外壳采用的材料的一种，它的原料是石油
The
common materials used for laptop casings include: alloy casings made of
aluminum magnesium alloy and titanium alloy, plastic casings made of
carbon fiber, polycarbonate PC, and ABS engineering plastics. Aluminum
magnesium alloy: Its thermal conductivity and strength are particularly
outstanding. Aluminum magnesium alloy is tough and lightweight, with low
density, good heat dissipation, and strong compression resistance. Its
hardness is several times that of traditional plastic casings, but its
weight is only one-third of the latter. Aluminum magnesium alloy has
become the preferred casing material for portable laptops, and most
manufacturers use aluminum magnesium alloy casing technology for their
laptop products. Disadvantages: Magnesium aluminum alloy is not very
sturdy and wear-resistant, has a high cost, is relatively expensive, and
is more difficult to form than ABS. Titanium alloy: In addition to the
difference between titanium alloy and magnesium alloy when mixed with
the metal itself, the biggest difference is that carbon fiber material
is also infiltrated, which is superior to aluminum magnesium alloy
material in terms of heat dissipation, strength, and surface texture,
and has better processing performance. The key breakthrough is stronger
resilience and thinner. The thickness of titanium alloy is only half
that of magnesium alloy, which can make laptops smaller in size. The
disadvantage of titanium alloy is that it is very expensive. Carbon
fiber: Carbon fiber possesses both the elegant and sturdy properties of
aluminum magnesium alloy and the high plasticity of ABS engineering
plastics. Its appearance is similar to plastic, but its strength and
thermal conductivity are better than ordinary ABS plastics. According to
IBM data, carbon fiber has twice the strength and toughness of aluminum
magnesium alloy, and has the best heat dissipation effect. If used for
the same amount of time, the shell of the carbon fiber model feels the
least hot to the touch. The disadvantage of carbon fiber is its high
cost. In addition, the carbon fiber casing also has a disadvantage,
which is that if the grounding is not good, there will be a slight
leakage sensation. Polycarbonate PC: It is a type of material used for
the outer shell of laptops, and its raw material is petroleum
