A kind of composite notebook computer d shell and preparation method thereof

Abstract

The invention belongs to the technical field of notebook computer shell processing, and in particular relates to a composite notebook computer D shell and a preparation method thereof. The preparation method comprises feeding a resin composite material into a twin-screw extruder, shearing by the screws, After kneading, the melt mixture is obtained, and then pressurized by the melt pump to extrude the melt mixture and cast it on the cold drum to form a thin sheet, and then perform online compounding with the foamed aluminum sheet, and then enter the molding machine to extrude the D shell of the notebook computer; in the present invention, form thin sheet by casting the melt mixture formed after the melt blending of resin composite material, and this thin sheet is compounded on the surface of foamed aluminum sheet in line, the surface of this foamed aluminum has The rich and rough pore structure has good bonding ability with the sheet after hot pressing, and the excellent electromagnetic shielding performance of aluminum foam can solve the problem of reliable use of notebook computers in special electromagnetic environments.

Description

technical field [0001] The invention belongs to the technical field of notebook computer shell processing, and in particular relates to a composite notebook computer D shell and a preparation method thereof. Background technique [0002] Common casing materials for notebook computers include magnesium-aluminum alloy, titanium alloy, carbon fiber, polycarbonate PC and ABS engineering plastics. Among them, the thermal conductivity and strength of magnesium-aluminum alloy are particularly outstanding. It has lighter weight, lower density, better heat dissipation performance, stronger compression resistance, and its hardness is several times that of traditional plastic casings. Therefore, magnesium-aluminum alloy has become the preferred casing material for portable notebook computers. Most notebook computer products of manufacturers use magnesium-aluminum alloy casing technology; the disadvantage of magnesium-aluminum alloy is that it has poor wear resistance and high cost. Mo...

AI Technical Summary

Problems solved by technology

The disadvantage of carbon fiber is the higher cost

In addition, there is another disadvantage of the carbon fiber chassis, that is, if the grounding is not good, there will be a slight leakage inductance

[0005] For notebook computers, the shell materials in different areas need to use different types of materials. It is close to the support, and is close to the graphics card and CPU of the notebook computer, which generate a lot of heat. If the heat dissipation capacity is insufficient, the heat inside the notebook computer will not be dissipated in time, resulting in a decrease in the operating speed of the notebook computer. Seriously, it will cause burning of key equipment inside the notebook computer, resulting in economic losses

On the other hand, the motherboard of a notebook computer is sensitive to the external electromagnetic environment, especially the CPU area. For notebook computer users in some special industries, in a special environment, the notebook computer often has insufficient EMI protection. There is a black screen phenomenon, for example, in the workshop environment of electrolytic aluminum, ordinary laptops often have a black screen and cannot work normally

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