A hot-bending protective forming process for cover plate

A molding process and cover plate technology, which is applied in the field of cover plate hot bending protection molding process, can solve the problems of low production efficiency of curved cover plates, high production and manufacturing of curved cover plates, and damage of cover plates, etc., so as to improve production and manufacturing. Yield, reduced imprinting, and the effect of lowering manufacturing costs

Active Publication Date: 2021-04-06
东莞市铂华光电材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Most of the curved cover plates are made of flat cover plates through hot bending. In actual manufacturing, the flat cover plates need to be put into a hot bending machine for hot bending. Since the hot bending machine is in direct contact with the flat cover plate, the hot bending machine Extruding the cover will form a large number of embossing, stamping, and surface pitting. At the same time, the flat cover will be scratched by the hot bending machine, resulting in damage to the cover. The production efficiency of the curved cover is low, and subsequent configuration is required Special equipment for removing embossing, stamping, and surface pitting, resulting in high production of curved cover plates

Method used

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  • A hot-bending protective forming process for cover plate
  • A hot-bending protective forming process for cover plate
  • A hot-bending protective forming process for cover plate

Examples

Experimental program
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Effect test

Embodiment 1

[0048] In this embodiment, the high temperature resistant protective ink includes the following raw materials in parts by weight: 38 parts of component A, 5 parts of silicon dioxide, 30 parts of calcium sulfate crystals, 2 parts of rutile titanium, 10 parts of PTFE, 13 parts of talcum powder, and leveling agent 1 part, 1 part of defoamer;

[0049] Each part of component A includes the following raw materials in parts by weight: 46 parts of modified acrylic resin, 24 parts of deionized water, 11 parts of absolute ethanol, 5 parts of butyl glycol ether, 0.4 part of organic acid, and 0.5 part of emulsifier , 4 parts of hydrogen peroxide.

[0050] Further, the leveling agent is composed of polyether-modified polysiloxane and polymethylphenylsiloxane in a mass ratio of 1:1.5. The polyether modified polysiloxane is preferably but not limited to BYK-333 leveling agent from Germany.

[0051] Further, the defoamer is composed of polydimethylsiloxane, fluorinated silicone oil and octy...

Embodiment 2

[0064] In this embodiment, the high temperature resistant protective ink includes the following raw materials in parts by weight: 36 parts of component A, 4 parts of silicon dioxide, 28 parts of calcium sulfate crystals, 1.6 parts of rutile titanium, 8 parts of PTFE, 11 parts of talcum powder, leveling 0.7 parts of agent, 1.3 parts of defoamer;

[0065] Each part of component A includes the following raw materials in parts by weight: 44 parts of modified acrylic resin, 22 parts of deionized water, 10 parts of absolute ethanol, 4 parts of butyl glycol ether, 0.2 part of organic acid, and 0.2 part of emulsifier , 1 part of hydrogen peroxide.

[0066] Further, the leveling agent is composed of polyether-modified polysiloxane and polymethylphenylsiloxane in a mass ratio of 1:0.8.

[0067] Further, the defoamer is composed of polydimethylsiloxane, fluorinated silicone oil and octylphenol polyoxyethylene ether in a weight ratio of 1:1:0.5. The organic acid is composed of cinnamic ...

Embodiment 3

[0080] In this embodiment, the high temperature resistant protective ink includes the following raw materials in parts by weight: 40 parts of component A, 6 parts of silicon dioxide, 32 parts of calcium sulfate crystals, 2.4 parts of rutile titanium, 12 parts of PTFE, 15 parts of talcum powder, leveling 1.2 parts of agent, 0.7 parts of defoamer;

[0081] Each part of component A includes the following raw materials in parts by weight: 48 parts of modified acrylic resin, 26 parts of deionized water, 12 parts of absolute ethanol, 6 parts of butyl glycol ether, 0.7 part of organic acid, and 0.8 part of emulsifier , 5 parts of hydrogen peroxide.

[0082] Further, the leveling agent is composed of polyether-modified polysiloxane and polymethylphenylsiloxane in a mass ratio of 1:2. The polyether modified polysiloxane is preferably but not limited to BYK-333 leveling agent from Germany.

[0083] Further, the defoamer is composed of polydimethylsiloxane, fluorinated silicone oil and...

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Abstract

The invention relates to the technical field of production of curved cover plates, and in particular discloses a hot-bending protection molding process for cover plates, in which ink is applied on the cover plate to form an ink protective layer; the cover plate coated with the ink protective layer Put it into the hot bending mold, use the hot bending equipment to process the hot bending mold so that the cover plate in the hot bending mold becomes a curved protective cover; wash off the ink protective layer on the curved protective cover, so that the curved protective cover The plate becomes a curved cover plate; through the protection of the ink protective layer during the hot bending forming process of the cover plate, it reduces the imprinting, mold printing, and surface pitting caused by the extrusion of the hot bending mold on the cover plate, and reduces the exposure of the cover plate scratches, improve the production yield of the curved cover, and reduce the production cost of the curved cover.

Description

technical field [0001] The invention relates to the technical field of production of curved cover plates, and in particular discloses a cover plate thermal bending protection forming process. Background technique [0002] With the advancement of science and technology and the development of economy and society, smart phones, tablet computers, smart watches and other products have gradually become people's daily necessities. Smart phones, tablet computers, and smart watches are assembled from multiple parts. It conforms to the principles of ergonomics and improves people's hand feeling experience when using it. Smartphones, tablet computers, and smart watches are mostly equipped with curved cover panels. [0003] Most of the curved cover plates are made of flat cover plates through hot bending. In actual manufacturing, the flat cover plates need to be put into a hot bending machine for hot bending. Since the hot bending machine is in direct contact with the flat cover plate, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C53/04B29C53/84B29C53/80C03C17/30C04B41/85C03B23/023
CPCB29C53/04B29C53/80B29C53/84C03B23/023C03C17/009C03C2217/445C03C2217/475C03C2217/477C03C2217/478C03C2218/328C03C2218/355C04B41/4501C04B41/46C04B41/483C04B41/4896C04B41/4905C04B41/4961C04B41/50C04B41/5014C04B41/5024C04B41/85Y02P40/57
Inventor 肖庆洲
Owner 东莞市铂华光电材料有限公司
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