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Composite notebook computer D shell and preparation method thereof

A notebook computer and composite technology, applied in the direction of chemical instruments and methods, synthetic resin layered products, heat exchange materials, etc., can solve the problems of black screen, economic loss, high cost, etc., achieve good combination ability, prevent equipment failure, The effect of improving reliability

Active Publication Date: 2019-03-19
ANHUI SHENGLI PRECISION MFG TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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  • Composite notebook computer D shell and preparation method thereof
  • Composite notebook computer D shell and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] A kind of preparation method of composite notebook computer D shell:

[0058] S1: Preparation of raw materials, including weighing raw materials; pretreatment of aluminum powder and alumina powder, including mixing aluminum powder and alumina powder and dispersing them in 95% ethanol, adding silane coupling agent KH560, stirring and mixing evenly , heat the mixed solution to 70°C, keep the temperature, reflux and stir for 4 hours, then filter out the aluminum powder and alumina powder;

[0059] Put the filtered aluminum powder and alumina powder into an oven and bake for 2 hours at a temperature of 70°C and a vacuum of 0.30Mpa to obtain pretreated aluminum powder and alumina powder;

[0060] In the above-mentioned pretreatment process, compared to the total amount of 100 parts by weight of thermally conductive fillers (aluminum powder and alumina powder), the addition of 95% ethanol is 300 parts by weight, and the addition of silane coupling agent KH560 is 10 parts by ...

Embodiment 2

[0066] As in the preparation method of the composite notebook computer D shell provided in Example 1, the difference is that the thickness of the thin sheet formed after casting the melt mixture is 0.1mm; the rest remains unchanged, prepared according to the preparation method of Example 1 Laptop D case.

Embodiment 3

[0068] As in the preparation method of the composite notebook computer D shell provided in Example 1, the difference is that the thickness of the thin sheet formed after casting the melt mixture is 0.3mm; the rest remains unchanged, and it is prepared according to the preparation method of Example 1. Laptop D case.

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Abstract

The invention belongs to the technical field of a notebook computer shell, and particularly relates to a composite notebook computer D shell and a preparation method thereof. The preparation method comprises the following steps: loading a composite resin material into a dual-screw extruder, cutting and mixing by virtue of screws to obtain a melt mixture, extruding the melt mixture by virtue of thepressurizing of a melt pump, casting the melt mixture onto a cold drum to form a sheet, online compositing the sheet and a foam aluminum sheet, and loading into a block press to press the notebook computer D shell. The melt mixture formed by melting and blending the composite resin material is cast to form the sheet, then the sheet is online composited onto the surface of the foam aluminum sheet,the surface of the foam aluminum has rich and rough porous structures, after being thermally pressed and formed, the foam aluminum has good binding capacity with the sheet; and moreover, the foam aluminum has excellent electromagnetic shielding performance, so that the use reliability of the notebook computer in a special electromagnetic environment can be solved.

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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08L23/06C08K13/06C08K9/06C08K3/08C08K3/22C08K5/526C08J9/08C08J5/18C09K5/14B32B15/20B32B15/08B32B27/18B32B27/20B32B27/24
CPCB32B15/08B32B15/20B32B27/18B32B27/20B32B27/24B32B2307/212B32B2307/302C08J5/18C08J9/0028C08J9/0038C08J9/0061C08J9/0066C08J9/009C08J9/08C08J2203/02C08J2367/02C08J2423/06C08K5/526C08K9/06C08K13/06C08K2003/0812C08K2003/2227C08K2201/017C09K5/14
Inventor 王修凯许伟邓威
Owner ANHUI SHENGLI PRECISION MFG TECH CO LTD