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High-film-thickness diffuse reflection coating aluminum plate and manufacturing process thereof

A manufacturing process and diffuse reflection technology, used in coatings, polyester coatings, building structures, etc., can solve the problems of long baking time and low efficiency, achieve soft and warm light, increase the irradiation range, and reduce the number of lamps. Effect

Inactive Publication Date: 2020-01-10
ZHEJIANG WONDERFUL WALL BUILDING MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This invention focuses on the field of coatings. Applying primer and topcoat to become a coating is a common process in the industry. The main disadvantage is that the baking time is too long and the efficiency is low. It is not suitable for advanced pre-roller coating production lines.

Method used

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  • High-film-thickness diffuse reflection coating aluminum plate and manufacturing process thereof
  • High-film-thickness diffuse reflection coating aluminum plate and manufacturing process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A manufacturing process of a high film thickness diffuse reflection coated aluminum plate of the present embodiment comprises the following steps:

[0034] (1) Clean and passivate the aluminum plate;

[0035] (2) Apply primer and back paint to the front and back of the pre-treated and passivated aluminum plate respectively. The film thickness of the primer layer is 5 μm, the film thickness of the back paint layer is 5 μm, and the baking temperature is 200 ° C;

[0036] (3) Coat the diffuse reflection topcoat 3 times on the primer layer, the film thickness of the diffuse reflection topcoat layer is 60μm, and the baking temperature is 210℃;

[0037] (4) Continue to coat the decorative varnish on the diffuse reflection topcoat layer, the film thickness of the decorative varnish layer is 10 μm, and the baking temperature is 232 °C.

[0038] The baking temperature of the diffuse reflective topcoat is applied in a stepwise manner, with a temperature gradient of 5°C.

[0039...

Embodiment 2

[0045] A manufacturing process of a high film thickness diffuse reflection coated aluminum plate of the present embodiment comprises the following steps:

[0046] (1) Clean and passivate the aluminum plate;

[0047](2) Apply primer and back paint to the front and back of the pretreated and passivated aluminum plate respectively. The film thickness of the primer layer is 8 μm, the film thickness of the back paint layer is 8 μm, and the baking temperature is 210 ° C;

[0048] (3) Coat the diffuse reflection topcoat 4 times on the primer layer, the film thickness of the diffuse reflection topcoat layer is 80μm, and the baking temperature is 230℃;

[0049] (4) Continue to coat the decorative varnish on the diffuse reflection topcoat layer, the film thickness of the decorative varnish layer is 20μm, and the baking temperature is 240°C.

[0050] The baking temperature of the diffuse reflective topcoat is applied stepwise, and the temperature gradient is 5~15°C.

[0051] The baking...

Embodiment 3

[0057] According to the different performance characteristics of the topcoat, the primerless process can be selected, that is, the diffuse reflection layer can be sprayed directly on the aluminum plate.

[0058] A manufacturing process of a high film thickness diffuse reflection coated aluminum plate of the present embodiment comprises the following steps:

[0059] (1) Clean and passivate the aluminum plate;

[0060] (2) Apply back paint to the back of the pre-treated and passivated aluminum plate, the film thickness of the back paint layer is 10 μm, and the baking temperature is 220 ° C;

[0061] (3) Coat the diffuse reflection topcoat on the aluminum plate 5 times, the film thickness of the diffuse reflection topcoat layer is 100μm, and the baking temperature is 241℃;

[0062] (4) Continue to coat the decorative varnish on the diffuse reflection topcoat layer, the film thickness of the decorative varnish layer is 30 μm, and the baking temperature is 245°C.

[0063] The bak...

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Abstract

The invention provides a high-film-thickness diffuse reflection coating aluminum plate and a manufacturing process thereof, and relates to the technical field of metal plate coating. The diffuse reflection coating aluminum plate comprises an aluminum plate, a primer layer coated on the back face of the aluminum plate, a diffuse reflective finish paint layer coated on the front face of the aluminumplate and a varnish layer coated on the diffuse reflective finish paint layer; the diffuse reflective finish paint layer used in the diffuse reflective finish paint layer includes resin and pigment;the resin is a polyester or fluorocarbon system, and the content is 35% to 55% of the total weight of paint by mass fraction; the pigment includes one or a combination of nano-barium sulfate powder and titanium dioxide, and the content of the pigment is 15% to 30% of the total weight of the paint by mass fraction. The process includes the steps of conducting cleaning and passivation of the aluminum plate; applying primer and back paint to the front face and the back face of the aluminum plate; repeatedly applying diffuse reflective finish paint on the primer layer, wherein the film thickness of the diffuse reflective finish paint layer is 60 microns to 100 microns; and coating the diffuse reflective finish paint layer with finishing varnish. By means of the high-film-thickness diffuse reflection coating aluminum plate, the multilayer diffuse reflection finish paint layer is adopted, and the film thickness is 60 microns to 100 microns, so the diffuse reflection effect is very good.

Description

technical field [0001] The invention relates to a high-thickness diffuse reflection coated aluminum plate and a manufacturing process thereof, belonging to the technical field of metal plate coating. Background technique [0002] The use of traditional diffuse reflective coating boards is mostly limited to small areas and small parts such as laboratories, standard boards for testing equipment, lampshades and lamp housings in the lighting field, and mostly use low efficiency, high energy consumption, and non-environmental protection. Spraying process. Diffuse reflectors manufactured by original techniques, technologies, and equipment cannot meet the requirements of mass production, industrialization, and large-area application in building decoration materials. For example, patent CN201811028557.0 "A Diffuse Reflecting Plate and Its Manufacturing Method", the present invention adopts the pretreatment of grinding, cleaning, and phosphating the alloy plate, and scrapes the cond...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04F13/075C09D167/00C09D5/00C09D7/61C09D163/00C09D175/04C09D7/42
CPCC08K2003/2241C08K2003/3045C09D5/002C09D163/00C09D167/00C09D175/04C09D7/42C09D7/61E04F13/12E04F2290/04C08K3/30C08K3/22
Inventor 蒋学文丁旭东李康良田全能孙铮
Owner ZHEJIANG WONDERFUL WALL BUILDING MATERIALS
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