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3D glass metal composite body and its preparation method and electronic product

A glass-metal, composite technology, applied in electrical equipment shell/cabinet/drawer, branch equipment, electrical components, etc., can solve the problem of no step-free combination, loose combination, increased risk of broken screen, etc., to reduce The effect of screen sticking process, improving product yield and reducing the risk of broken screen

Active Publication Date: 2020-12-25
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The 3D glass-metal composite prepared by this method has the following major disadvantages: (1) the bonding force between the glass and the metal substrate is small, the bond is not tight, there are gaps, it is not waterproof, and it is easy to fall off; (2) basically all The bonding of the 3D glass-metal composites did not achieve step-free bonding, resulting in protruding glass, which not only increased the thickness of the 3D glass-metal composite, but also increased the risk of broken screens; (3) There were many preparation processes, which increased production costs and also increased bad rate

Method used

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  • 3D glass metal composite body and its preparation method and electronic product
  • 3D glass metal composite body and its preparation method and electronic product
  • 3D glass metal composite body and its preparation method and electronic product

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preparation example Construction

[0030] In a second aspect, the present invention provides a method for preparing a 3D glass-metal composite, the method comprising: (1) providing a 3D glass cover plate 10 (such as Figure 4 shown), and coat the activator on the side surface of the 3D glass cover plate 10, and dry; (2) provide a metal frame prefabricated body 30' (such as Figure 5 As shown), the metal frame prefabricated body 30' is reserved with respect to the final structure of the metal frame 30 with a reserved portion 33 extending outward along the outer circumference of the metal frame 30; (3) the 3D obtained in step (1) The glass cover plate 10 and the metal frame prefabricated body 30′ are placed in an injection mold, and injection plastic is filled between the side surface of the 3D glass cover plate 10 and the upper surface of the metal frame prefabricated body 30, and injection molding is performed to obtain a 3D glass metal Composite preforms (such as Image 6 shown); (4) cutting the 3D glass-meta...

Embodiment 1

[0086](1) Roughen the side surface of the 3D glass cover plate prepared above, and use a 70T screen to screen-print UV ink on the side surface of the aforementioned 3D glass cover plate. Under the machine, expose for 3 minutes; use a 380-mesh screen to screen-print the activator on the UV ink, the thickness of the screen printing of the activator is 10 μm, and then put the glass in a tunnel dryer at 90°C to dry for 90 minutes; the activator is a polyurethane system , including polyurethane, acetone and ethylenediamine, based on the weight of the activator, the contents of polyurethane, acetone and ethylenediamine are respectively 88% by weight, 8% by weight and 4% by weight.

[0087] (2) The aluminum alloy is processed and shaped, polished, chemically polished, sand blasted, anodized, microporous, and film-coated in sequence to obtain an aluminum alloy frame prefabricated body (refer to the above description for the structure, and the width of the reserved part is 1.5 mm), and...

Embodiment 2

[0091] (1) Roughen the side surface of the 3D glass cover plate prepared above, use a 70T screen to screen-print thermosetting ink on the side surface of the 3D glass cover plate, the thickness of the thermosetting ink is 15 μm, and then Dry in an oven for 90 minutes; use a 300-mesh screen to screen-print the activator on the thermosetting ink, the thickness of the screen-printed activator is 15 μm, and then put the glass in a tunnel dryer at 80°C to dry for 110 minutes; the activator is polyurethane The system includes polyurethane, ethyl acetate and ethylene glycol. Based on the weight of the activator, the contents of polyurethane, ethyl acetate and ethylene glycol are respectively 85 wt%, 10 wt% and 5 wt%.

[0092] (2) The aluminum alloy is processed and shaped, polished, chemically polished, sand blasted, anodized, microporous, and film-coated in sequence to obtain an aluminum alloy frame prefabricated body (refer to the above description for the structure, and the width o...

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Abstract

The invention discloses a 3D glass-metal composite body, a preparation method thereof and electronic products. Wherein the 3D glass-metal composite includes a 3D glass cover, a plastic frame and a metal frame, the upper surface of the metal frame is set correspondingly to the sides of the 3D glass cover, and the plastic frame is formed on the Between the edge surface of the 3D glass cover and the upper surface of the metal frame, and the outer periphery of the 3D glass cover, the plastic frame, and the metal frame transition smoothly along the curvature of the 3D glass cover . The 3D glass-metal composite has good bonding force, low risk of broken screen, strong waterproof ability, light and thin, beautiful appearance, and can be assembled as a practical cover plate.

Description

technical field [0001] The invention relates to the technical field of electronic products, in particular to a 3D glass-metal composite, a preparation method thereof, and electronic products. Background technique [0002] In the prior art, the combination of the glass front screen and the metal frame is basically directly assembled with glue. Apply glue to the metal frame for assembly. Therefore, the bonding method of glass and metal frame determines the bonding force between metal substrate and glass. The 3D glass-metal composite prepared by this method has the following major disadvantages: (1) the bonding force between the glass and the metal substrate is small, the bond is not tight, there are gaps, it is not waterproof, and it is easy to fall off; (2) basically all The bonding of the 3D glass-metal composites did not achieve step-free bonding, resulting in protruding glass, which not only increased the thickness of the 3D glass-metal composite, but also increased the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05K5/02B29C45/14
CPCH05K5/0217B29C45/14336B29C2045/14868B29C45/14H05K5/00H04M1/0202H04M1/0266H04M1/0249H04M1/18H04M1/185G06F1/1637G06F1/1656H05K5/03H05K5/0086B29L2031/3481G06F1/1626H04B1/3888H04M1/02
Inventor 任鹏马兰陈梁王海霞
Owner BYD CO LTD
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