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Manufacturing method of computer outer shell

A technology for computer shells and manufacturing methods, applied in chemical instruments and methods, synthetic resin layered products, lamination devices, etc., can solve the problems of low yield rate, increased damage and oxidation, and easy corrosion of magnesium alloys for computer shells. Achieve short processing time, reduce surface pores, and reduce surface defects

Active Publication Date: 2013-05-29
MITAC PRECISION TECH(KUNSHAN) CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the limitations of the existing die-casting technology level and the shortcomings of magnesium alloys that are easy to corrode, the strength of magnesium alloy workpieces after die-casting increases the risk of damage and oxidation in subsequent impact-resistant applications due to defects such as shrinkage cavities and inclusions.
Therefore, die-casting magnesium alloy has many limitations as a computer mechanism component of military specifications.
In addition, the magnesium alloy die-casting process to make computer casings has a low process yield, high energy consumption, long processing time, and high production costs

Method used

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  • Manufacturing method of computer outer shell

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Step 101: Take kevlar fibers impregnated with thermoplastic PA and carbon fiber composite materials to form a layered structure, and place them in a heat-pressing mold with a vacuum structure for making a 10-inch notebook computer casing;

[0025] Step 103: heating the hot pressing mold to 200°C, then closing the molds for vacuuming and hot pressing;

[0026] Step 104: After the product is hot-pressed, the temperature of the hot-pressing mold is lowered to 50°C, and the mold is opened to take out the product;

[0027] Step 105: After the surface appearance treatment of the product obtained in the above steps, such as grinding, spray painting, thermal transfer printing, water transfer printing or leather application, a strong and thin product with high rigidity, toughness and super shock absorption effect can be obtained. military-spec laptop case.

Embodiment 2

[0029] Step 201: taking kevlar fibers impregnated with thermoplastic PA and carbon fiber composite materials cross-stacked to form a layered structure, and covering the uppermost layer and the lowermost layer respectively with a PA film with a thickness of 0.1mm made into the design shape of the notebook shell, Placed in a hot pressing mold with a vacuum structure to make a 15-inch notebook computer casing;

[0030] Step 202: heating the hot pressing mold to 280°C, then closing the molds for vacuuming and hot pressing;

[0031] Step 203: After the product is hot-pressed, the temperature of the hot-pressing mold is lowered to 45°C, and the mold is opened to take out the product;

[0032] Step 204: After the surface appearance treatment of the product obtained in the above steps, such as grinding, spray painting, thermal transfer printing, water transfer printing or leather application, a strong and thin product with high rigidity, toughness and super shock absorption effect can...

Embodiment 3

[0034] Step 301: Take kevlar fibers impregnated with thermoplastic ABS and carbon fiber composite materials and cross-stack them to form a layered structure, and cover the uppermost layer and the lowermost layer respectively with an ABS / PMMA with a thickness of 0.3 mm made into the design shape of the notebook shell The film is placed in a hot pressing mold with a vacuum structure for making a 15-inch notebook computer casing;

[0035] Step 302: heating the hot pressing mold to 110°C, and then closing the molds for vacuuming and hot pressing;

[0036] Step 303: After the product is hot-pressed, the temperature of the hot-pressing mold is lowered to 50°C, and the mold is opened to take out the product;

[0037] Step 304: After the surface appearance treatment of the product obtained in the above steps, such as grinding, spray painting, heat transfer printing, water transfer printing or leather application, a strong and thin product with high rigidity, toughness and super shock ...

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Abstract

The invention provides a manufacturing method of a computer outer shell. The manufacturing method of the computer outer shell comprises the following steps of: taking Kevlar fiber and carbon fiber composite materials impregnated with thermal plastic resin materials, crossing and piling into a layered structure, and placing into a hot-pressing mold which is used for manufacturing the computer outer shell and has a vacuumizing structure; heating the hot-pressing mold to be above the glass-transition temperature of the thermal plastic resin materials, and then assembling the mold for vacuumization and hot-pressing molding; and reducing the temperature of the hot-pressing mold after a product is subjected to hot-pressing molding, opening the mold, and taking out of the product. Compared with the method for manufacturing the computer outer shell by die casting magnesium alloy in the prior art, the manufacturing method of the computer outer shell provided by the invention reduces surface air holes effectively, reduces surface defects, is short in manufacturing process, low in energy consumption, short in treatment time and low in mass production cost, and can replace die casting magnesium alloy for manufacturing reinforced-type computer outer shells with military industry specifications.

Description

【Technical field】 [0001] The invention relates to a method for manufacturing a computer casing, in particular to a method for manufacturing a computer casing made of Kevlar fiber and carbon fiber composite materials. 【Background technique】 [0002] Due to its high strength, high stiffness, light weight, corrosion resistance and wear resistance, composite materials have been used in aerospace industry, automobile industry, shipbuilding industry, medical treatment and sports equipment. There are many types of composite materials, among which the longest and most widely used ones are fiber-reinforced polymer composite materials. In the aerospace industry, reducing weight has long been a goal of aircraft manufacturers since aircraft must defy gravity to stay airborne. Aircraft are subjected to complex stress changes during take-off and landing, and are exposed to harsh environmental changes during hours or long-term flights. Therefore, the materials used in aircraft must be abl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/12B32B37/06B32B37/10
Inventor 郭雪梅
Owner MITAC PRECISION TECH(KUNSHAN) CORP
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