Light-emitting sign with metal surface effect and preparation method thereof

A technology of metal surface and production method, which is applied in the direction of illuminated signs, instruments, display devices, etc., can solve the problems of non-compliance with environmental protection requirements, health threats of production personnel, etc., and achieve excellent weather aging resistance, consistency, and resources. saving effect

Pending Publication Date: 2020-03-10
大方盛德汽车科技扬州有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are a lot of hexavalent chromium ions in the production process of existing automobile signs, forming chromium mist, which is distributed in the production space, which not only does not meet the environmental protection requirements, but also poses a threat to the health of production personnel

Method used

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  • Light-emitting sign with metal surface effect and preparation method thereof
  • Light-emitting sign with metal surface effect and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Such as figure 1 and figure 2 As shown, a luminous sign with a metal surface effect includes a shading plate 1, an ePVD metal sign 2, a diffuser plate 3, a light guide plate 4, a reflective frame 5, a PCBA light plate 6, and a base 7 arranged in sequence from top to bottom. The reflective frame 5 is provided with a reflective cavity 8, and the PCBA lamp board 6 is provided with an LED lamp and an LED lamp drive circuit, and the LED lamp drive circuit is connected to the LED lamp 9 through wires; among them, 60 LED lamps are uniformly arranged on the PCBA board 9. The back of the shading plate 1 is ultrasonically welded to the front of the ePVD metal sign 2, the back of the ePVD metal sign 2 is ultrasonically welded to the front of the diffuser plate 3, the back of the diffuser 3 is connected to the front of the light guide plate 4 by buckles, and the back of the light guide plate 4 is connected to the reflector The front of the frame 5 is connected by a buckle, the ba...

Embodiment 2

[0035] A method of making a luminous sign with a metal surface effect in Example 1 is as follows:

[0036] S1. Injection molding of signboard base material: the ABS material is made into the signboard body by injection molding;

[0037] S2. Pretreatment of signboard base material: performing dust removal and static electricity removal on the signboard body obtained in step S1;

[0038] S3, UV primer layer spraying: spraying a UV primer layer on the surface of the sign body treated in step S2, wherein the thickness of the UV primer layer is 10-15 μm;

[0039] S4. PVD coating: forming a chromium coating on the surface formed in step S3 by magnetron sputtering or vacuum evaporation, wherein the thickness of the chromium coating 203 is 0.1-0.2 μm.

[0040] S5. UV high-hardness coating: spray a UV high-hardness coating on the surface formed in step S4, wherein the thickness of the UV high-hardness topcoat layer 204 is 10-15 μm.

[0041] S6. Static removal: carry out static remova...

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Abstract

The invention discloses a light-emitting sign with a metal surface effect and a preparation method thereof. The light-emitting sign comprises a shading plate, an ePVD metal sign, a diffusion plate, alight guide plate, a reflection frame, a PCBA lamp plate and a base which are sequentially arranged from top to bottom. The light-emitting sign with the metal surface effect in the invention is prepared through sign base material injection molding, sign base material pretreatment, UV primer layer spraying, PVD coating, UV high-hardness coating, electrostatic removal, finishing coat treatment, ultraviolet curing and assembling, no solvent, water and hexavalent chromium ion are generated in the manufacturing process, not only environmental protection and resource conservation are achieved, but also no harm to the body of production personnel, the manufactured light-emitting sign with the metal surface effect is high in light transmittance and excellent in weather aging resistance while maintaining the metal appearance effect, the light transmittance reaches up to 10%-15%, and the consistency of product appearance quality is also capable of being maintained for long-term use or severe weather.

Description

technical field [0001] The invention relates to the technical field of automobile signs, in particular to a luminous sign with a metal surface effect and a manufacturing method thereof. Background technique [0002] Car signs are widely used on various types of cars, providing decoration and identification functions. Existing automobile signs adopt electroplating technology, and the surface is provided with a 40-60 μm metal coating. When relying on an external light source or an internal light source on the sign, the light transmittance is less than 1%, and the lighting effect is not good. In addition, after the existing car signs are broken under the action of external force, the 40-60 μm metal coating is peeled off from the substrate, resulting in a sharp knife-edge structure, which is likely to cause personal injury. During the long-term use of existing automobile signs, especially in harsh weather environments, the surface is easily corroded, which greatly reduces the a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09F13/04G09F13/14
CPCG09F13/0404G09F13/0413G09F13/14G09F13/0418G09F13/0422
Inventor 周银双严舶陈辉倪磊刘佳潘美玉金嘉晨
Owner 大方盛德汽车科技扬州有限公司
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