Automobile lamp coating technology

A technology of automotive lamps and crafts, which is applied in metal material coating technology, household appliances, sputtering coating, etc., can solve the problems of uneven film thickness and low reflectivity of the film, and achieve stable reflectivity and good protection , the effect of long-term use

Inactive Publication Date: 2018-01-23
芜湖晶鑫光电照明有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] CN201210029889.7 discloses a coating method for car lamp reflectors. Due to the use of vacuum coating, the problem of uneven film thickness caused by ma

Method used

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  • Automobile lamp coating technology

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0035] Example 1:

[0036] A coating process for automotive lamps includes the following steps:

[0037] (1) Dry

[0038] The polyethylene terephthalate and silica particles are dried in a dryer, the temperature of the dryer is 80°C, the drying time is 8 hours, and the polyethylene terephthalate The mass fractions of and silica particles are 40% and 60% respectively;

[0039] (2) Mixed

[0040] Centrifugal mixing the dried polyethylene terephthalate, silicon dioxide particles and dimethyl silicone oil emulsifier in a centrifuge to form a mixture, and the centrifugal mixing time is 15 minutes;

[0041] (3) Reaction

[0042] Put the mixed material after mixing into the polymerization reactor to make it react, and the reaction time is 20 min;

[0043] (4) Extrusion

[0044] Feed the reacted materials to the extrusion feeder for feeding, and then to the twin-screw extruder for extrusion and granulation to obtain mixed particles;

[0045] (5) Calendering

[0046] Fully mix the mixed particles and...

Example Embodiment

[0059] Example 2:

[0060] A coating process for automotive lamps includes the following steps:

[0061] (1) Dry

[0062] The polyethylene terephthalate and silica particles are dried in a dryer, the temperature of the dryer is 90°C, the drying time is 10 hours, and the polyethylene terephthalate The mass fractions of and silica particles are 60% and 40% respectively;

[0063] (2) Mixed

[0064] Centrifugal mixing the dried polyethylene terephthalate, silica particles and dimethyl silicone oil emulsifier in a centrifuge to form a mixture, and the centrifugal mixing time is 20 min;

[0065] (3) Reaction

[0066] Put the mixed material after mixing into the polymerization reactor to make it react, and the reaction time is 30 min;

[0067] (4) Extrusion

[0068] Feed the reacted materials to the extrusion feeder for feeding, and then to the twin-screw extruder for extrusion and granulation to obtain mixed particles;

[0069] (5) Calendering

[0070] Fully mix the mixed particles and PET, and th...

Example Embodiment

[0083] Example 3:

[0084] A coating process for automotive lamps includes the following steps:

[0085] (1) Dry

[0086] The polyethylene terephthalate and silica particles are dried in a dryer, the temperature of the dryer is 100°C, the drying time is 12h, and the polyethylene terephthalate The mass fractions of and silica particles are 80% and 20% respectively;

[0087] (2) Mixed

[0088] Centrifugal mixing the dried polyethylene terephthalate, silica particles and dimethyl silicone oil emulsifier in a centrifuge to form a mixture, and the centrifugal mixing time is 25 min;

[0089] (3) Reaction

[0090] Put the mixed material after mixing into the polymerization reactor to make it react, and the reaction time is 40 min;

[0091] (4) Extrusion

[0092] Feed the reacted materials to the extrusion feeder for feeding, and then to the twin-screw extruder for extrusion and granulation to obtain mixed particles;

[0093] (5) Calendering

[0094] The mixed particles and PET are fully mixed, and ...

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Abstract

The invention discloses a film coating process for automobile lamps. The proportion control of the mass fraction of polyethylene terephthalate and silicon dioxide particles can prepare a PET base film with high strength and high impact resistance, so as to meet the requirements of high haze. Requirements, the protective film is coated after the aluminum plating, and the SiOx protective film can effectively block the influence of air on the aluminum plating film, and has a good protective effect on the aluminum plating film, prolonging its service life, and the reflectivity of the protective film remains The coating process of automotive lamps has the advantages of long service life and high reflectivity of the film, and the market prospect is broad.

Description

technical field [0001] The invention relates to the field of automobile lamps, in particular to a coating process for automobile lamps. Background technique [0002] Car lights are various traffic lights installed on cars to ensure safe driving. There are two types of lights and signal lights. Lighting should provide good illumination and glare should be minimized. For the headlights, in order to take into account the requirements of the above two aspects, two working conditions of high beam and low beam are adopted. The composite coating process and equipment of car lamps are one of the key equipment for the production and quality control of modern car lamps, which directly affect the overall technical level of cars. In the automotive lamp manufacturing industry, the phenomenon of low technical content, uneven quality, and insufficient standardization of the aftermarket of self-owned brand products is still a problem in the technical market of my country's automobile ind...

Claims

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Application Information

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IPC IPC(8): C23C14/20C23C14/02C23C14/58B29D7/01
Inventor 祖骅
Owner 芜湖晶鑫光电照明有限公司
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