Recyclable coated aluminum alloy template and preparation method thereof

A technology of aluminum alloy formwork and aluminum alloy plate, which is applied in the field preparation of building components, formwork/formwork components, chemical instruments and methods, etc., can solve the problems of poor bonding between the film layer and aluminum alloy formwork, surface quality and The strength of the formwork is reduced, which affects the recycling of aluminum formwork, etc., and achieves the effect of good room temperature mechanical properties, light weight and good strength

Active Publication Date: 2019-05-03
重庆新久融科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in actual use, long-term direct contact between the aluminum alloy formwork and concrete or repeated use of the aluminum alloy formwork will easily cause corrosion on the surface of the aluminum alloy formwork, and the surface quality and strength of the aluminum alloy formwork will decline. The alloy formwork is firmly bonded to the solidified concrete. During the demoulding process, the aluminum alloy formwork is easily deformed due to force, which will affect the recycling of the aluminum formwork. Therefore, in recent years, the aluminum formwork is often brushed with a release agent during actual use. , but if the residual concrete slurry on the surface of the aluminum formwork is not cleaned and the release agent is applied, it will cause defects such as pockmarks on the concrete surface during construction. If the release agent is not evenly applied or the thickness of the application is improper, it will cause concrete pollution and prevent isolation. If the layer is damaged, it needs to be repaired, which will cause redundant workload. If the method of coating the aluminum alloy formwork is used, it can avoid brushing the release agent, but there is still a weak bond between the film layer and the aluminum alloy formwork. After use, the film layer The phenomenon of shedding occurs

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Example 1: Preparation of a film-coated aluminum alloy formwork 1:

[0024] First prepare the sponge skeleton:

[0025] Add 20 parts by mass of aluminum nitrate, 5 parts by mass of barium nitrate, 5 parts by mass of calcium nitrate, and 50 parts by mass of carbon powder into 3 wt % 400 parts by mass of polyethylene glycol solution and stir to dissolve, adjust pH=7 to obtain a mixed solution, and mix the solution Place it in a constant temperature water bath at 100°C for heating, then place it in a nitrogen atmosphere, keep it at 1000°C for 2 hours, take it out, add deionized water to prepare a dispersion. Under neutral conditions, during the heat preservation process, a precursor formed by mixing calcium oxide, barium oxide, aluminum oxide, and carbon is formed, and some of the calcium ions, barium ions and polyethylene glycol form complexes. Immerse the sponge in the dispersion liquid, oscillate with 50kHz ultrasonic wave for 20 minutes, disperse the substance in the ...

Embodiment 2

[0032] Example 2: Preparation of the film-coated aluminum alloy formwork II:

[0033] First prepare the sponge skeleton:

[0034] Add 20 parts by mass of aluminum nitrate, 5 parts by mass of barium nitrate, 5 parts by mass of calcium nitrate, and 50 parts by mass of carbon powder into 3 wt % 400 parts by mass of polyethylene glycol solution and stir to dissolve, adjust pH=7 to obtain a mixed solution, and mix the solution Place it in a constant temperature water bath at 100°C for heating, then place it in a nitrogen atmosphere, keep it at 1000°C for 2 hours, take it out, add deionized water to prepare a dispersion. Immerse the sponge in the dispersion liquid, oscillate with 50kHz ultrasonic wave for 20 minutes, disperse the substance in the dispersion liquid evenly into the pores of the sponge, let it stand for 1 hour, take it out, let the whole reaction system stand for aging, and freeze it at -30°C Dry, remove water, and place in N 2 -0.5%H 2 The atmosphere is neutral, an...

Embodiment 3

[0039] Example 3: Preparation of film-coated aluminum alloy formwork three:

[0040] First prepare the sponge skeleton:

[0041] Add 20 parts by mass of aluminum nitrate, 5 parts by mass of barium nitrate, 5 parts by mass of calcium nitrate, and 50 parts by mass of carbon powder into 3 wt % 400 parts by mass of polyethylene glycol solution and stir to dissolve, adjust pH=7 to obtain a mixed solution, and mix the solution Place it in a constant temperature water bath at 100°C for heating, then place it in a nitrogen atmosphere, keep it at 1000°C for 2 hours, take it out, add deionized water to prepare a dispersion. Immerse the sponge in the dispersion liquid, oscillate with 50kHz ultrasonic wave for 20 minutes, disperse the substance in the dispersion liquid evenly into the pores of the sponge, let it stand for 1 hour, take it out, let the whole reaction system stand for aging, and freeze it at -30°C Dry, remove water, and place in N 2 -0.5%H 2 The atmosphere is neutral, and...

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PUM

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Abstract

The invention discloses a recyclable coated aluminum alloy template and a preparation method thereof, and relates to the technical field of buildings. The coated aluminum alloy template is a three-layer structure with an aluminum alloy plate as a substrate, with a porous alloy as a middle layer and with a plastic film layer as a surface layer, wherein the thickness of the middle layer is 1-2 mm, and the thickness of the plastic film layer is 2-3 mm. The porous alloy is formed by filling a sponge framework with a nickel-copper alloy, wherein the sponge framework is an aluminum nitride framework. The prepared coated aluminum alloy template is green and environmentally friendly, has excellent corrosion resistance and can endure corrosion of cement, so that cement can be easily separated froma building aluminum alloy template, recycling of the building aluminum alloy template is facilitated, and cost is effectively saved.

Description

technical field [0001] The invention relates to the technical field of construction, in particular to a recyclable film-coated aluminum alloy formwork and a preparation method thereof. Background technique [0002] Aluminum formwork is a building formwork made of aluminum alloy, also known as aluminum alloy formwork. It refers to the design according to the modulus. The aluminum formwork is extruded by special equipment. , has a complete set of general accessories for supporting use, and can be combined and assembled into an overall formwork with complex dimensions of different sizes. It is a system formwork for assembly and industrial construction. The aluminum alloy formwork solves the defects of the traditional formwork in the past and greatly improves the construction efficiency. Aluminum alloy building formwork is suitable for wall formwork, horizontal floor slabs, columns, beams, climbing formwork, bridges and other formwork. It can be assembled into small, medium or ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B15/20B32B9/00B32B9/04B32B15/14B32B27/02B32B27/32B32B27/12B32B27/30E04G9/02B22F7/04
Inventor 席仕刚唐华强
Owner 重庆新久融科技有限公司
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