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A kind of coated aluminum alloy template and its coating process

A technology of aluminum alloy formwork and process, which is applied in the direction of coating, polyurea/polyurethane coating, etc., can solve the problems of low concrete surface roughness, too smooth surface of the film layer, increase construction cost, etc., so as to improve service life and repeated use times , Good molding effect, promote volatilization effect

Active Publication Date: 2021-03-23
中建海峡(福建)智能装备科技有限公司 +4
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of surface treatment of the base material with strong acid and strong alkali can easily lead to environmental pollution; and the surface of the film layer is too smooth, resulting in a low surface roughness of the formed concrete, which makes it difficult to paint other surface materials on the concrete surface later, resulting in decoration. Difficulties and increased construction costs

Method used

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  • A kind of coated aluminum alloy template and its coating process
  • A kind of coated aluminum alloy template and its coating process
  • A kind of coated aluminum alloy template and its coating process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043]According to the aforementioned coating process of a coated aluminum alloy formwork, it is made according to the following steps:

[0044] 42% of high-impact acrylic resin (percentage by weight, the same below), 18% of amino resin paint, 25% of high weather resistance pigment, 12% of dilution solvent, 1.2% of polymer dispersant, 0.8% of anti-settling agent and high-speed leveling agent 1% is evenly mixed to obtain a coating coating. The amino resin paint is mixed with blocked polyurethane and butylated amino resin at a weight ratio of 1:1.5. The diluting solvent can be an organic solvent such as acetone or cyclohexanone. Then put the aluminum alloy template base material to be coated into the shot blasting machine for shot blasting treatment. The new aluminum alloy template base material (unused aluminum alloy template base material) adopts a cantilever centrifuge with a high ejection speed at a working frequency of 20 Hz. Shot blasting with a type shot blasting machine ...

Embodiment 2

[0046] Mix 42% of high-impact acrylic resin, 18% of amino resin paint, 25% of high weather resistance pigment, 12% of dilution solvent, 1.2% of polymer dispersant, 0.8% of anti-settling agent and 1% of high-speed leveling agent to obtain a coating Coating, amino resin paint is made by mixing blocked polyurethane and butylated amino resin in a weight ratio of 1:1.5. Then put the aluminum alloy template substrate to be coated into the shot blasting machine for shot blasting. The new aluminum alloy template substrate is shot blasted with a cantilever centrifugal shot blasting device with a high projecting speed of 20 Hz to remove the substrate. The oil stains, dust and oxide layer accumulated on the surface of the material increase the roughness of the substrate and improve the adhesion of the resin; the old aluminum alloy formwork substrate adopts a cantilever centrifugal shot blasting device with a working frequency of 40 Hz and a high projectile speed. Shot blasting removes th...

Embodiment 3

[0048] Mix 42% of high-impact acrylic resin, 18% of amino resin paint, 25% of high weather resistance pigment, 12% of dilution solvent, 1.2% of polymer dispersant, 0.8% of anti-settling agent and 1% of high-speed leveling agent to obtain a coating Coating, amino resin paint is made by mixing blocked polyurethane and butylated amino resin in a weight ratio of 1:1.5. Then put the aluminum alloy template substrate to be coated into the shot blasting machine for shot blasting. The new aluminum alloy template substrate is shot blasted with a cantilever centrifugal shot blasting device with a high projecting speed of 20 Hz to remove the substrate. The oil stains, dust and oxide layer accumulated on the surface of the material increase the roughness of the substrate and improve the adhesion of the resin; the old aluminum alloy formwork substrate adopts a cantilever centrifugal shot blasting device with a working frequency of 40 Hz and a high projectile speed. Shot blasting removes th...

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Abstract

The invention discloses a film coated aluminum alloy template and a film coating technology thereof. The film coated aluminum alloy template comprises an aluminum alloy template base material and a coating, and is prepared by subjecting the aluminum alloy temperature base material to surface shot blasting, cleaning, drying, coating spraying and curing. The coating is prepared from 30wt%-45wt% of acrylic resin, 14wt%-22wt% of amino resin coating, 15wt%-40wt% of highly-weather-resistant pigment, 10wt%-15wt% of diluting solvent, 0.5wt%-1.5wt% of polymeric dispersant, 0.5wt%-0.8wt% of anti-settling agent and 0.8wt%-1.2wt% of high-speed flatting agent. The film coated aluminum alloy template is provided after repeated tests, a film coating technology is improved at the same time, and by spraying surface processing materials including the acrylic resin, the amino resin coating, the highly-weather-resistant pigment and the like on surfaces of the aluminum alloy temperature base material, thefilm coated aluminum alloy template obtained after resin is cured is large in recyclable times, great in concrete forming effect and easy to demould and has less pollution to environments.

Description

technical field [0001] The invention belongs to the field of material surface treatment, and in particular relates to a coated aluminum alloy template and a coating process thereof. Background technique [0002] Aluminum alloy formwork has the advantages of moderate weight, convenient assembly, accurate forming size, fast construction efficiency, many turnover times, and large bearing capacity. The aluminum alloy early demolition system speeds up the turnover efficiency of the formwork and reduces the input of the project formwork. Aluminum alloy formwork is used instead of bamboo plywood. After the formwork is completed, the recycling rate is high, and the use of wood resources is reduced, which has a good role in alleviating the global shortage of wood resources. [0003] During the construction process, the formwork will be affected by many climatic factors such as ultraviolet rays, rain, snow, frost, high temperature in summer and low temperature in winter in the natura...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D133/04C09D161/32C09D175/04C09D7/61
CPCC08K2003/2241C08L2205/03C09D133/04C09D7/61C08L61/32C08L75/04C08K3/22C08K3/04
Inventor 陈忠旭张世奇林建耀肖元海蒋栋财郑维朗何燕燕
Owner 中建海峡(福建)智能装备科技有限公司
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