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Uncontinuous high-metallic coating method

A high-metal, textured technology, applied in metal material coating process, sputtering plating, ion implantation plating, etc., can solve the problems of yellowish background color, yellowish color, and inconsistent color of tin materials.

Inactive Publication Date: 2009-10-28
GUANGDONG JANUS SMART GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the non-conductive film coating process is relatively common and mature. Generally, the evaporation coating process after preheating is used, and most of them use the same process parameters and materials. Uniform, and the gloss is poor, the color is yellowish, and the metal texture is poor
In the natural light environment, because tin is easily oxidized, the base color of the product is yellowish

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Step 1: Spray UV primer

[0017] In an environment with a temperature of 10°C and a humidity of 30%, put the product to be coated on the automatic line of the No. 1 coating machine. The line speed of the No. 1 coating machine is 18Hz for pre-treatment wiping and automatic electrostatic dust removal. Inject the UV primer with the number AKS198 and paint viscosity of 7.8s into the ion air gun for automatic spraying, and the air pressure of the spray gun is 2.0kg / cm 2 , spray the UV primer onto the coated surface of the product, the film thickness of the sprayed UV primer is 16um, put the sprayed product into the oven for baking, the oven temperature is 40°C, the baking time is 5min, and then bake Good products are cured in a UV oven, which includes 4 UV lamps, 3 of which are strong light and 1 medium light, and the UV energy is 800mj / cm 2 .

[0018] Step 2: Tin plus indium coating

[0019] Under the conditions of temperature 10°C and humidity 45%, the tungsten wire of ...

Embodiment 2

[0023] Step 1: Spray UV primer

[0024] In an environment with a temperature of 20°C and a humidity of 50%, put the product to be coated on the automatic line of the No. 1 coating machine. The line speed of the No. 1 coating machine is 20Hz for pre-treatment wiping and automatic electrostatic dust removal. Inject the UV primer with the number AKS198 and paint viscosity of 8.0s into the ion air gun for automatic spraying, and the air pressure of the spray gun is 2.75kg / cm 2 , spray the UV primer onto the coated surface of the product, the film thickness of the sprayed UV primer is 18um, put the sprayed product into the oven for baking, the oven temperature is 45°C, the baking time is 6min, and then bake Good products are cured in a UV oven, which includes 4 UV lamps, 3 of which are strong light and 1 medium light, and the UV energy is 900mj / cm 2 .

[0025] Step 2: Tin plus indium coating

[0026] Under the conditions of a temperature of 20°C and a humidity of 65%, the tungst...

Embodiment 3

[0030] Step 1: Spray UV primer

[0031] In an environment with a temperature of 35°C and a humidity of 80%, put the product to be coated on the automatic line of the No. 1 coating machine. The line speed of the No. 1 coating machine is 22Hz for pre-treatment wiping and automatic electrostatic dust removal. Inject the UV primer with the number AKS198 and paint viscosity of 8.2s into the ion air gun for automatic spraying, and the air pressure of the spray gun is 3.5kg / cm 2 , spray the UV primer onto the coated surface of the product, the film thickness of the sprayed UV primer is 20um, put the sprayed product into the oven for baking, the oven temperature is 50°C, the baking time is 8min, and then bake Good products are cured in a UV furnace, which includes 4 UV lamps, 3 of which are turned on with strong light and 1 with medium light, and the UV energy is 1000mj / cm 2 .

[0032] Step 2: Tin plus indium coating

[0033]Under the conditions of a temperature of 35°C and a humid...

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Abstract

The invention belongs to the technical field of vacuum coating, and in particular relates to an uncontinuous high-metallic coating method, which comprises the following steps: firstly, spray coating of a UV primer, namely coating the UV primer on the coated surface of a product, roasting the coated product in an oven, and curing the roasted product in a UV furnace; secondly, stannum-indium coating, namely placing a tungsten filament of a coating machine into a stannum-indium coating material, placing the product after spray coating of the UV primer into a vacuum furnace turntable of the coating machine for electrostatic dust collection of the product, performing vacuum pumping after sealing the coating machine, performing preheating after vacuum pumping, and evaporating the stannum-indium coating material for coating; and thirdly, spray coating of a UV finishing coat, namely coating the UV finishing coat on the coated surface of the product after stannum-indium coating, roasting the coated product in the oven, and curing the roasted product in the UV furnace. The product coated by the method is not conductive; the membrane layer is white and bright; the light transmittance is good; the metallic texture is strong; and the weathering resistance is good.

Description

Technical field: [0001] The invention belongs to the technical field of vacuum coating, in particular to a non-continuous high metal texture coating method. Background technique: [0002] Plastic parts such as mobile phone casings generally need to be vacuum coated. Since mobile phones are charged objects, it is required to coat the mobile phone casing with a non-conductive film when vacuum coating is performed. At present, the non-conductive film coating process is relatively common and mature. Generally, the evaporation coating process after preheating is used, and most of them use the same process parameters and materials. Uniform, and the gloss is poor, the color is yellowish, and the metal texture is poor. In the natural light environment, because tin is easily oxidized, the base color of the product is yellowish. Invention content: [0003] The purpose of the present invention is to provide a non-continuous high metal texture coating method for the deficiencies of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C14/24C23C14/14C23C14/02B05D1/38B05D3/02
Inventor 欧胤张学章
Owner GUANGDONG JANUS SMART GRP CO LTD
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