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Corrosion-resistant aluminum alloy formwork and preparation method thereof

A technology of aluminum alloy formwork and aluminum alloy plate, which is applied in the field preparation and construction of formwork/formwork components, building components, etc. Alloy template surface corrosion and other problems, to achieve the effect of stable crystal form, tight bonding, reducing shrinkage and porosity

Active Publication Date: 2019-03-15
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, and the aluminum alloy formwork is easily deformed due to force during the demoulding process, which will affect the recycling of the aluminum formwork

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Example 1: Preparation of corrosion-resistant aluminum alloy formwork 1:

[0025] The aluminum alloy plate raw materials are 2000g in total, and the raw materials are weighed according to the following weight percentages: magnesium 1.5%, zinc 1.7%, silicon 0.65%, iron 0.15%, copper 0.2%, manganese 0.1%, chromium 0.11%, titanium 0.06%, molybdenum 0.06% , tin 0.006%, nickel 0.003%, cerium 0.002%, and the balance is aluminum;

[0026] Covering agent weighs 100g, and covering agent is made up of the powder of 30%KCl+50%NaCl+20% cryolite;

[0027] Weigh 200g of polyphenylene particles, the particle size is 1-2mm;

[0028] A total of 250g of the porous alloy raw material is weighed according to the following percentages by weight: chromium 22%, copper 15%, molybdenum 3.1%, boron 1%, and the balance is nickel;

[0029] Sodium chloride weighs 250g, and its particle size is 0.1-0.15mm.

[0030] Prepare the aluminum alloy formwork as follows:

[0031] (1) The weighed aluminum...

Embodiment 2

[0034] Example 2: Preparation of corrosion-resistant aluminum alloy formwork 2:

[0035] The aluminum alloy plate raw materials are 1500g in total, and the raw materials are weighed according to the following weight percentages: 1.6% magnesium, 2% zinc, 0.63% silicon, 0.16% iron, 0.25% copper, 0.15% manganese, 0.12% chromium, 0.05% titanium, and 0.05% molybdenum , tin 0.011%, nickel 0.002%, cerium 0.001%, and the balance is aluminum;

[0036] Covering agent weighs 80g, and covering agent is made up of the powder of 30%KCl+50%NaCl+20% cryolite;

[0037] Weigh 100g of polyphenylene particles, the particle size is 1-2mm;

[0038] The porous alloy raw material is 200g in total, and the raw material is weighed according to the following percentages by weight: chromium 20.1%, copper 20.5%, molybdenum 3.3%, boron 1.2%, and the balance is nickel;

[0039] Sodium chloride weighs 200g, and its particle size is 0.1-0.15mm.

[0040] Prepare the aluminum alloy formwork as follows:

[0...

Embodiment 3

[0044] Example 3: Preparation of corrosion-resistant aluminum alloy formwork three:

[0045] The aluminum alloy plate raw materials are 2500g in total, and the raw materials are weighed according to the following weight percentages: 1.2% magnesium, 1.5% zinc, 0.6% silicon, 0.2% iron, 0.15% copper, 0.13% manganese, 0.14% chromium, 0.1% titanium, and 0.08% molybdenum , 0.014% tin, 0.005% nickel, 0.003% cerium, and the balance is aluminum;

[0046] Covering agent weighs 200g, and covering agent is made up of the powder of 30%KCl+50%NaCl+20% cryolite;

[0047] Weigh 100g of polyphenylene particles, the particle size is 1-2mm;

[0048] The porous alloy raw material is 300g in total, and the raw material is weighed according to the following percentages by weight: chromium 23.3%, copper 10.5%, molybdenum 3.7%, boron 1.5%, and the balance is nickel;

[0049] Sodium chloride weighs 300g, and its particle size is 0.1-0.15mm.

[0050] Prepare the aluminum alloy formwork as follows: ...

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Abstract

The invention discloses a corrosion-resistant aluminum alloy formwork and a preparation method thereof, and belongs to the technical field of architectural aluminum alloy formworks. The corrosion-resistant aluminum alloy formwork is of a double-layer structure with an aluminum alloy plate serving as a base layer and a porous alloy serving as a surface layer, wherein the surface layer completely covers the surface of the base layer, the thickness ratio of the base layer to the surface layer is 1:(0.03-0.05), raw materials of the aluminum alloy plate include magnesium, zinc, silicon, iron, copper, manganese, chromium, titanium, molybdenum, tin, nickel, bismuth, aluminum and impurities, and raw materials of the porous alloy include chromium, copper, molybdenum, boron, nickel and impurities. The preparation method includes the steps that the aluminum alloy plate raw materials are put into a smelting furnace and evenly stirred, dross is removed, gradient refining is carried out, after drossing, degassing and standing, the mixture is discharged out of the smelting furnace for casting, and the product is cooled for use; the porous alloy raw materials are separately dried and then evenly mixed with sodium chloride, the mixture is heated into a molten state and cast on the aluminum alloy plate, and after cooling, the corrosion-resistant aluminum alloy formwork is obtained. The preparedcorrosion-resistant aluminum alloy formwork has the functions of resisting acid and alkali and preventing corrosion.

Description

technical field [0001] The invention relates to the technical field of building aluminum alloy templates, in particular to a corrosion-resistant aluminum alloy template and a preparation method thereof. Background technique [0002] At present, it is widely used in the support system of the roof slab, mostly steel pipe fasteners and bowl buckle scaffolding. These systems are independent from the roof slab formwork system and lack integrated design. There are a large number of phenomena such as low construction efficiency, waste of materials and man-hours, and even safety accidents caused by improper support equipment and construction plans, which may cause serious damage. casualty accident. With the construction of large-scale infrastructure in my country, such as highways, railways, urban rail transit, high-rise buildings, super high-rise buildings and large public buildings, the use of aluminum alloy building templates has become increasingly popular. Aluminum alloy form...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04G9/06C22C21/10C22C19/05C22C1/02C22C1/06C22C1/08B22D19/16
CPCC22C1/026C22C1/06C22C1/08C22C19/055C22C21/10E04G9/06B22D19/16C22C1/081
Inventor 席仕刚唐华强
Owner 重庆新久融科技有限公司