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Thin plastic shell with plastic binder and manufacturing method thereof

A technology of metal thin and bonded parts, which is applied in the direction of metal shells, metal layered products, chemical instruments and methods, etc., can solve problems such as process and application limitations, complicated process, shape or tactile limitation, etc., to achieve high production efficiency and easy The effect of mass production, process and mold simplification

Inactive Publication Date: 2011-10-12
铂邑科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0013] However, the above-mentioned Chinese invention patents ZL02805359.1, ZL200380102886.0, ZL200380104500.X and ZL200680046075.7 all disclose the related technologies of metal-resin composites and manufacturing methods thereof, and their respective characteristics are that the metal (such as aluminum Alloy) shapes are dipped in a specially selected aqueous solution (such as an aqueous solution of more than one water-soluble amine compound), and then are integrally attached to the aluminum alloy shape by injection molding with a thermoplastic resin with a specially selected composition. In other words, the surface treatment process of the metal (aluminum alloy) shape and the composition of the resin shape in the composite are specialized and limited, and are relatively complicated, making the manufacturing process and application of the composite Restricted, it is not conducive to the use efficiency and application range of the thin metal shell, especially the use of specially selected aqueous solution does not meet the current environmental protection requirements, so the above-mentioned thin metal shell and its preparation method have at least the following disadvantages: In the injection molding mold, a single injection port is designed for each resin joint to carry out high-pressure fixed-point injection molding of the resin joint, which causes the metal thin shell to be easily deformed and damaged due to high pressure during the injection molding process, and increases the production of the injection molding. Difficulty of the mold; and because the metal surface of the thin metal shell must first be impregnated with a special aqueous solution, the manufacturing process is more complicated, which is not conducive to the mass production of the thin metal shell, especially the special aqueous solution is more environmentally friendly.
However, the composition of the film layer in the structure of this case is composed of a polyurethane bottom layer and a polyurethane surface layer sequentially laminated and combined, so the film layer has been specially defined, so that the appearance or touch of the metal substrate is relatively limited , which is not conducive to the application of thin metal shells made of

Method used

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  • Thin plastic shell with plastic binder and manufacturing method thereof
  • Thin plastic shell with plastic binder and manufacturing method thereof
  • Thin plastic shell with plastic binder and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] The metal shell 1 with resin-bonded parts in this embodiment includes: a metal shell 10 is composed of an aluminum alloy substrate 11 with a thickness of 0.8 mm, and a decorative outer coating 15 on its outer surface is a cloth layer. The cloth layer is composed of man-made fibers such as nylon, polyester fiber, acrylic fiber, etc. and has a thickness of 0.3 mm; the TPR adhesive layer 20 is composed of a thermoplastic rubber film composed of styrene-butadiene block copolymer and hydrocarbon petroleum resin. , the thickness is about 400-500 μm; the plastic joint 40 includes but is not limited to a hollow cylindrical receiving seat such as Figure 5-7 As shown, the interior of the hollow cylindrical socket can be hot-melted into a metal (such as copper) package to form a metal socket for strong locking by the fastener; and the dimensions of the plastic joints 40 are: The length is 262mm, the width is 178mm, the thickness is 1mm, and the height is 9.5mm; it is found that t...

Embodiment 2

[0055] The metal shell 1 with resin-bonded parts in this embodiment includes: a metal shell 10 is composed of an aluminum alloy substrate 11 with a thickness of 0.8 mm, and the decorative coating 15 on the outer surface of the metal shell 10 is PVC (vinyl chloride resin) ) synthetic rayon or PU (polyurethane, Polyurethane) synthetic rayon, the TPR adhesive layer 20 is composed of a thermoplastic rubber film synthesized by styrene-butadiene block copolymer and hydrocarbon petroleum resin, with a thickness of about 400-500 μm; the plastic The combination piece 40 includes but is not limited to a hollow cylindrical socket for hot-melting a metal sleeve to form a metal socket, and the dimensions of the plastic combination pieces 40 are: length 262mm, width 178mm, thickness 1mm, The height is 9.5mm; it is found that the peel strength and adhesion of the plastic joint 40 of this embodiment is 5 kg per square centimeter, and the environmental test adhesion is from -40°C to 85°C and 85...

Embodiment 3

[0057] The structure of the thin metal shell 1 with resin bonding parts in this embodiment is basically the same as that of the second embodiment, the difference is that the thin metal shell 10 is formed by stamping an aluminum alloy substrate 11 with a thickness of 0.8 mm from an aluminum plate, and The outer coating layer 15 is the outer coating layer after the aluminum alloy substrate 11 with a thickness of 0.8 mm is punched and formed, and then treated by sandblasting and anode surface coloring.

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Abstract

The invention relates to a thin metal shell with a plastic binder and a manufacturing method thereof. The manufacturing method comprises the following steps of: providing a molded thin metal shell one surface of which can be provided with an outer decorative coating layer through processing; arranging a TPR (Thermoplastic Rubber) adhesion layer with the thickness of about 400-500 mum on the unprocessed metal surface of the thin metal shell, wherein the TPR adhesion layer is a thermoplastic rubber film synthesized from a butadiene-styrene block copolymer and hydrocarbon petroleum resin; embedding the thin metal shell with the plastic binder and fixing in a cavity of an injection molding die with a corresponding matching shape; injection-molding the plastic binder on the TPR adhesion layer of the thin metal shell by using a metal injection molding process. Therefore, the plastic binder has the pressure and the temperature of the material injected during injection molding so as to be molten and integrated with the TPR adhesion layer, and meanwhile, the thickness of part of the TPR adhesion layer, for example 10% and about 40-50 mum, is forced to permeate into the existing thin concave holes in the metal surface of the thin metal shell.

Description

technical field [0001] The present invention relates to a metal thin shell part with plastic bonding parts and a manufacturing method thereof, in particular to a TPR adhesive layer which is composed of a styrene-butadiene block copolymer and The thermoplastic rubber film synthesized from hydrocarbon petroleum resin, and then using the injection molding process, the plastic bonding parts are injection-molded on the TPR adhesive layer, so that the plastic bonding parts can be adjusted by the pressure and temperature of the injection material during injection molding. The TPR adhesive layer and the thin metal shell are combined to form a solidly combined integrated composite structure. Background technique [0002] Various products on the market, especially electronic products, including common computer products such as notebook computers (NB), communication products such as mobile phones or consumer products and other 3C products but not limited, A thin shell is often used as...

Claims

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Application Information

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IPC IPC(8): H05K5/04B29C45/14B32B15/06
Inventor 谢明仁
Owner 铂邑科技股份有限公司
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