In recent years, benefiting from the ultimate pursuit of light and thinning by major manufacturers and the efforts of the material industry, magnesium-lithium alloys have gradually been applied to thin and light notebooks, and have made significant progress in lightweight and portability, which has been recognized by the market.
Notebook computer products are composed of various structural parts and components, to achieve thin and light, in addition to controlling the thickness of internal components and component volume, the choice of shell material is also the main way to reduce weight. In the choice of shell material, at present, the commonly used shell materials of laptop light and thin are mainly aluminum alloy, magnesium aluminum alloy and carbon fiber composite material. Magnesium lithium alloy is one of the world's lightest metal structural materials, the reason why it is favored by major manufacturers and consumers, is because it has both aluminum alloy, magnesium aluminum alloy and carbon fiber composite materials excellent performance, comprehensive advantages outstanding.
Its main changes are now in the following aspects:
Lightweight. Magnesium itself density is not high, only 1.74g / cm3, lithium addition, so that its density dropped to 1.3 ~ 1.6g / cm3, is currently the lowest density of structural metal materials. It is 1/2 lighter than aluminum alloy and 1/3 lighter than magnesium alloy, which can better achieve weight reduction effect and meet consumers' ultimate pursuit of lightness and thinness.
Good electrical and thermal conductivity. The thermal conductivity is about 300 to 400 times that of plastics, which is 30 to 50 times that of carbon fiber composites; the conductivity is about 1016 times that of plastics, which is 104 times that of carbon fiber composites, which can achieve better heat dissipation effects and avoid the defects of poor heat dissipation of thin and light materials. Good shock absorption. With a large internal consumption coefficient, it can consume energy inside the metal, which can effectively improve the stability of the product.
High electromagnetic shielding performance. Magnesium-lithium alloy has a good shielding effect on electromagnetic waves of different wavelength bands, improving the safety and accuracy of equipment.
Excellent machinability and cold forming capability. Excellent machining performance, good processing surface quality, small cutting force, low energy consumption. Excellent cold working performance, can be room temperature stamping molding, improve production efficiency.
In addition to the above advantages, magnesium-lithium alloys are lower in cost than carbon fiber composites, which helps manufacturers control costs. Therefore, magnesium-lithium alloy has been successfully applied on thin and light notebook shells at home and abroad and has been favored by notebook material manufacturers. Magnesium lithium alloy with its excellent performance, won the recognition of the market, magnesium lithium alloy ultra-portable light and thin is gradually becoming the mainstream of the market.