CN104057623A - Computer housing manufacturing method and product thereof - Google Patents

Abstract

A computer housing manufacturing method and a product thereof. The method comprises the following steps: taking dipped plastic-containing shell-simulated fiber composite materials, stacking the shell-simulated fiber composite materials in an intersecting manner according to different angles to form a layered structure; putting the shell-simulated fiber composite materials with the layered structure in a hot pressing die with a vacuum-pumping structure; heating the hot pressing die to reach a temperature above the glass transition temperature of the plastic, performing vacuum-pumping, continuing heating the hot pressing die to reach the melting temperature of the plastic; performing hot pressing moulding, then cooling, opening the die, and taking the structural member out. The computer housing product is the product manufactured by the computer housing manufacturing method.

Description

Manufacturing method and product of computer case

【Technical field】

The invention relates to a method for making a computer shell and its products, in particular to a method for making a computer shell using imitation shell fibers and its products.

【Background technique】

Composite materials are composed of two or more materials, generally composed of a base material and a reinforcing material. The base material is the continuous material in the material composition, while the reinforcing material is the discontinuous material in it. Usually, the mechanical strength of the reinforcing material is higher than that of the base material, so that the base material can be reinforced, so that the synthesized composite material can obtain better mechanical strength. Because composite materials have good properties such as high strength, high stiffness, light weight, corrosion resistance and wear resistance, they have been widely used in aerospace industry, automobile industry, shipbuilding industry, medical treatment and sports equipment and other fields.

Although there are many types of composite materials, the longest and most widely used one is fiber-reinforced polymer composite materials. Composite reinforced fibers, such as carbon fiber, silicon carbide fiber, boron fiber and high-performance glass fiber, have the characteristics of high specific strength, specific stiffness, small creep, and good heat resistance, but their fracture deformation is small And toughness is low, can not meet the requirement of high toughness.

Tougher than steel and ceramics, and harder than plastic, shells are a model of the "perfect combination" of the hardness of inorganic substances and the toughness of organic substances in nature. In the open network journal "Scientific Report" under "Nature", it is reported that scientists have imitated the structure of shells to create a new material - artificial shell fibers (ANFs/artificial

nacre fibers), it is a new type of fiber, which is made of graphene and organic polymer materials, and is produced by wet spinning technology commonly used in industry. m ^-1 ), the material is not only hard and tough (tensile strength 125±10MPa, modulus 8.2±2.2GPa, elongation ~3.7%), corrosion-resistant, but also can be produced continuously. Clothes woven from it can prevent radiation and static electricity, and because the new fiber is light, it can also be made into lighter body armor.

At the same time, the development of products in special industries is increasingly requiring light and thin products with high rigidity and toughness. For example, the development trend of military-standard computer products is to develop in the direction of thinner, lighter, and stronger. Due to its special environmental requirements, military-standard computers require both shock absorption and drop resistance. However, the commonly used material for military computer mechanism components is die-cast magnesium alloy. The strength of the workpiece after die-casting increases the risk of damage and oxidation in subsequent impact resistance due to defects such as shrinkage cavities and inclusions. So far, no case has been seen of the application of the above-mentioned special imitation shell fiber material on military-standard computers.

In view of this, it is necessary to develop a method for making a computer case. In the method for making a computer case, imitation shell fibers will be used for the structural parts of a strong computer, so that it can be light and thin, strong and tough, and can protect the computer in special environments. Computer shell products with super shock absorption, radiation protection and antistatic effects for computer hardware data.

【Content of invention】

Therefore, the object of the present invention is to provide a method for making a computer case, in which imitation shell fibers will be used for strong computer structural parts, so that it can be light and thin, strong and tough, and can protect the computer in special environments. Computer casing products with super shock absorption, radiation protection and antistatic effects of hardware data.

In order to achieve the above object, the computer case manufacturing method of the present invention comprises the following steps:

(1) Take the imitation shell fiber composite material impregnated with plastic, and stack the imitation shell fiber composite material according to different angles to form a layered structure;

(2) Put the layered shell-like fiber composite material into a hot-pressing mold with a vacuum structure;

(3) Heat the hot pressing mold to above the glass transition temperature of the plastic to start vacuuming, and continue to heat the hot pressing mold to the melting temperature of the plastic;

(4) Cool down after hot pressing, and open the mold to take out the structural parts after cooling down.

In particular, the plastic is thermosetting plastic or thermoplastic, preferably thermoplastic.

In particular, after the step (1) and before the step (2), a step is further included: covering the surface of the shell-like fiber composite material with a layered structure with a thermoplastic film.

In particular, the thermoplastic film has a thickness of 0.1 mm to 0.5 mm.

In particular, the vacuuming structure in the step (2) is a vacuum pump, and correspondingly, the hot pressing mold is provided with vent holes connected to the vacuuming structure.

In particular, the heating temperature of the hot pressing mold in the step (3) is 80°C-400°C.

In particular, step (5) is further included after the step (4): molding the BOSS column and the hook on the structural member by means of thermocompression molding or in-mold injection.

In particular, step (6) is further included after the step (5): treating the appearance of the structural member, the appearance treatment being sanding, painting, thermal transfer printing, water transfer printing or leather application.

In addition, the present invention also provides a computer casing product, which is produced after being manufactured by the computer casing manufacturing method.

In particular, the meat thickness of the product is 0.4mm-2.0mm.

Compared with the prior art, the manufacturing method of the computer shell and its products of the present invention have the following effects by using imitation shell fiber to make a strong computer shell:

1. The yield rate of the process is greatly improved, the process is short, the energy consumption is low, the processing time is short, and the cost of mass production is low;

2. Effectively reduce the pores on the surface of the computer shell and reduce surface defects;

3. Obtain a lightweight, thin and tough computer case;

4. The obtained computer casing has the functions of high impact resistance, drop resistance, bulletproof, corrosion resistance and antistatic effect, and can be used in computers requiring strong military regulations and industrial regulations.

【Description of drawings】

FIG. 1 shows a flow chart of the steps of an embodiment of the method for manufacturing a computer case of the present invention.

FIG. 2 shows a schematic diagram of an embodiment of the manufacturing method of the computer case of the present invention.

FIG. 3 is a schematic diagram of another embodiment of the manufacturing method of the computer casing according to the present invention.

【Detailed ways】

For having further understanding to the object of the present invention, method step and effect, now in conjunction with accompanying drawing, describe in detail as follows:

Example 1

Please refer to Fig. 1 and Fig. 2, in the present embodiment, this computer case manufacturing method comprises the following steps:

Step s101: Take the imitation shell fiber composite material 300 impregnated with thermoplastic PA (polyamide), stack the imitation shell fiber composite material 300 according to different angles to form a layered structure, and then process it into a 10-inch military specification notebook case shape;

Step s102: Put the imitation shell fiber composite material 300 with a layered structure into the hot-press mold 100 with a vacuum structure, the vacuum structure is a vacuum pump, and the hot-press mold 100 is provided with a channel connected to the vacuum structure. stomata 200;

Step s103: Heat the hot pressing mold 100 to 200°C to mold the product, that is, heat the hot pressing mold. After heating to the glass transition temperature of thermoplastic PA, the above-mentioned vacuum pumping structure vacuumizes the hot pressing mold 100, and continues to heat up to thermoplastic PA. The melting temperature of PA is used to form structural parts, and the interior of the imitation shell fiber composite material 300 is free of air bubbles by vacuumizing the hot pressing mold 100;

Step s104: After the structural parts are formed, the hot pressing mold 100 is cooled to about 50°C and the mold is opened to take out the structural parts;

Step s105: forming a BOSS (convex post) and a hook on the structural part by hot pressing, the material of the BOSS and the hook is the same as that of the structural part;

Step s106: Appearance treatment of the formed computer case, the appearance treatment may be grinding, painting, heat transfer printing, water transfer printing or leather pasting of the computer case.

Example 2

Please refer to Fig. 3, in this embodiment, the method for making the computer case includes the following steps:

Step s201: Take the imitation shell fiber composite material 300 impregnated with thermoplastic PA, and after the imitation shell fiber composite material 300 is cross-stacked according to different angles to form a layered structure, it is processed into the required shape of a 15-inch military specification notebook shell; then take Thermoplastic PA film 400 with a thickness of 0.1mm is also made into the required shape of a 15-inch military notebook case;

Step s202: the thermoplastic PA film 400 is placed on the bottom layer in the hot pressing mold 100 with a vacuum structure, and then the imitation shell fiber composite material 300 of the above-mentioned layered structure is placed on the thermoplastic PA film 400, and continue to The shell-like fiber composite material 300 is covered with a thermoplastic PA film 400. In this embodiment, the vacuuming structure is a vacuum pump, and the hot pressing mold 100 is provided with a vent hole 200 connected to the vacuuming structure;

Step s203: heating the hot pressing mold 100 to 290°C to form a molded product, that is, heating the hot pressing mold 100. After heating to the glass transition temperature of thermoplastic PA, the above-mentioned vacuum pumping structure vacuumizes the hot pressing mold 100, and continues to heat up to Melting temperature of thermoplastic PA to form structural parts;

The upper and lower layers of the structural member formed through this step are thermoplastic PA films 400, and the middle is a shell-like fiber composite material 300 impregnated with thermoplastic PA. The thermoplastic PA film 400 is covered on the surface of the shell-like fiber composite material 300, and heated. Combining the two into one, the thermoplastic PA film 400 covers the defects such as air bubbles or cracks on the surface of the imitation shell fiber composite material 300, so that the appearance of the product is neat and convenient for the appearance treatment of subsequent products, and through the hot pressing mold 100 Vacuumize to make the interior of the imitation shell fiber composite material 300 free of air bubbles;

Step s204: After the structural parts are formed, the hot pressing mold 100 is cooled to about 45°C and the mold is opened to take out the structural parts;

Step s205: hot-press forming the BOSS and the hook on the structural part, the material of the BOSS and the hook is the same as that of the computer structural part;

Step s206: Treat the appearance of the formed computer case, the appearance treatment can be grinding, spray painting, heat transfer printing, water transfer printing or leather pasting on the computer case.

Example 3

In this embodiment, the computer case manufacturing method includes the following steps:

Step s301: Take the imitation shell fiber composite material impregnated with thermoplastic ABS (acrylonitrile-butadiene-styrene), cross-stack the imitation shell fiber composite material according to different angles to form a layered structure, and process it into a 15-inch military industrial The shape required by the standard notebook case; then take a thermoplastic ABS/PMMA film with a thickness of 0.3mm, and make it into the required shape of a 15-inch notebook case;

Step s302: Place the thermoplastic ABS/PMMA film on the bottom layer of a heat press mold with a vacuum structure, then place the above-mentioned layered shell fiber composite material on the thermoplastic ABS/PMMA film, and continue to The shell-like fiber composite material is covered with a thermoplastic ABS/PMMA film. In this embodiment, the vacuuming structure is a vacuum pump, and the hot pressing mold is provided with a vent hole connected to the vacuuming structure;

Step s303: Heat the hot-pressing mold to 110°C to form the product, that is, heat the hot-pressing mold. After heating to the glass transition temperature of thermoplastic ABS, the above-mentioned vacuum pumping structure vacuumizes the hot-pressing mold, and continues to heat up to the temperature of thermoplastic ABS. Melting temperature forming structural parts;

The upper and lower layers of the structural part formed by this step are thermoplastic ABS/PMMA films, and the middle is the imitation shell fiber composite material impregnated with thermoplastic ABS. The thermoplastic ABS/PMMA film is covered on the surface of the imitation shell fiber composite material and heated. The thermoplastic ABS/PMMA film covers the defects such as air bubbles or cracks on the surface of the imitation shell fiber composite material, making the appearance of the product neat and convenient for the appearance treatment of subsequent products, and through the hot pressing mold Vacuumize to make the interior of the imitation shell fiber composite material free of air bubbles;

Step s304: After the structural part is formed, the hot pressing mold is opened when the temperature drops to about 50°C, and the structural part is taken out;

Step s305: insert-molding the BOSS and hooks on the structural parts, that is, placing the structural parts of the computer in the injection mold, and then injection-molding the BOSS and the hooks on the structural parts of the computer. The material of the BOSS and the hooks can be high rigidity material;

Step s306: Appearance treatment of the formed computer casing, the appearance treatment may be grinding, painting, heat transfer printing, water transfer printing or leather pasting of the computer casing.

Example 4

In this embodiment, the computer case manufacturing method includes the following steps:

Step s401: Take the imitation shell fiber composite material impregnated with thermoplastic PC (polycarbonate), cross-stack the imitation shell fiber composite material according to different angles to form a layered structure, and process it into the required shape of a 17-inch military-grade notebook case; Then take a thermoplastic PC/PMMA film with a thickness of 0.5mm, and make it into the required shape of a 17-inch military-grade notebook case;

Step s402: the thermoplastic PC/PMMA film is placed on the lowermost layer in a hot press mold with a vacuum structure, and then the imitation shell fiber composite material of the above-mentioned layered structure is placed on the thermoplastic PC/PMMA film, and continue on the The shell-like fiber composite material is covered with a thermoplastic PC/PMMA film. In this embodiment, the vacuuming structure is a vacuum pump, and the hot pressing mold is provided with a vent hole connected to the vacuuming structure;

Step s403: Heat the hot-pressing mold to 200°C to form the product, that is, heat the hot-pressing mold. After heating to the glass transition temperature of the thermoplastic resin PC, the above-mentioned vacuum pumping structure vacuumizes the hot-pressing mold, and continues to heat up to the temperature of the thermoplastic resin. PC melting temperature forming structural parts;

The upper and lower layers of the structural part formed through this step are thermoplastic PC/PMMA films, and the middle is a shell-like fiber composite material impregnated with thermoplastic PC. The thermoplastic PC/PMMA film is covered on the surface of the shell-like fiber composite material and heated. The method makes the two combined into one. The thermoplastic PC/PMMA film covers the defects such as air bubbles or cracks on the surface of the imitation shell fiber composite material, making the appearance of the product neat and convenient for the appearance treatment of subsequent products. Vacuumize to make the interior of the imitation shell fiber composite material free of air bubbles;

Step s404: After the product is formed, the mold is opened when the temperature of the hot-pressing mold is lowered to about 60° C., and the structural parts are taken out;

Step s405: insert-molding the BOSS and hooks on the structural parts of the computer, that is, placing the structural parts of the computer in the injection mold, and then injection-molding the BOSS and the hooks on the structural parts of the computer. The materials of the BOSS and the hooks are Can be high rigidity material;

Step s406: Treat the appearance of the formed computer case, the appearance treatment can be grinding, painting, thermal transfer printing, water transfer printing or leather pasting on the computer case.

In addition, the present invention also provides a computer shell product, which is a product produced by the computer shell manufacturing method, and the flesh thickness of the product is 0.4mm-2.0mm.

Compared with the prior art, the manufacturing method of the computer shell and its products of the present invention have the following effects by using imitation shell fiber to make a strong computer shell:

1. The yield rate of the process is greatly improved, the process is short, the energy consumption is low, the processing time is short, and the cost of mass production is low;

2. Effectively reduce the pores on the surface of the computer shell and reduce surface defects;

3. Obtain a lightweight, thin and tough computer case;

4. The obtained computer casing has the functions of high impact resistance, drop resistance, bulletproof, corrosion resistance and antistatic effect, and can be used in computers requiring strong military regulations and industrial regulations.

Claims (10)

1. A method for making a computer casing, characterized in that, comprising the following steps: (1) Take the imitation shell fiber composite material impregnated with plastic, and stack the imitation shell fiber composite material according to different angles to form a layered structure; (2) Put the layered shell-like fiber composite material into a hot-pressing mold with a vacuum structure; (3) Heat the hot pressing mold to above the glass transition temperature of the plastic to start vacuuming, and continue to heat the hot pressing mold to the melting temperature of the plastic; (4) Cool down after hot pressing, and open the mold to take out the structural parts of the computer after cooling down. 2 . The method for manufacturing a computer casing according to claim 1 , wherein the plastic is thermosetting plastic or thermoplastic. 3 . 3 . The method for making a computer casing according to claim 1 , wherein after the step (1) and before the step (2), a step is further included: covering the surface of the shell-like fiber composite material with a layered structure with a thermoplastic film. 4 . The method for manufacturing a computer casing according to claim 3 , wherein the thickness of the thermoplastic film is 0.1 mm˜0.5 mm. 5 . The method for making a computer case according to claim 1 , wherein the vacuuming structure in the step (2) is a vacuum pump, and correspondingly, the hot pressing mold is provided with vent holes connected to the vacuuming structure. 5 . 6 . The method for manufacturing a computer casing according to claim 1 , wherein the heating temperature of the hot pressing mold in the step (3) is 80° C. to 400° C. 7 . 7. The method for making a computer casing according to any one of claims 1 to 6, characterized in that, after the step (4), the step (5) is further included: hot pressing molding or in-mold injection on the structural member The way to shape the boss and the hook. 8. The method for making a computer casing according to claim 7, characterized in that, after the step (5), the step (6) is further included: treating the appearance of the structural member, the appearance treatment includes grinding, painting, thermal transfer, Water transfer or stick leather. 9. A computer shell product, characterized in that, the computer shell product is a product produced by the computer shell production method described in claims 1-8. 10. The computer case product according to claim 9, characterized in that the flesh thickness of the product is 0.4mm-2.0mm.