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A degradable aluminum-based material

An aluminum-based material and matrix technology, applied in the field of degradable aluminum-based structural materials, can solve the problems of unfavorable forest resource protection, easy deformation and high cost, achieve environmental compatibility, reduce the consumption of manpower and materials, and have a good protective effect. Effect

Active Publication Date: 2017-02-01
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Wooden formwork is widely used, although it is light in weight, its strength is low, it is not waterproof, and it consumes a lot of wood resources, which is not conducive to the protection of ecological environment and forest resources; plastic formwork is poor in rigidity, easy to change, high in cost, and produces plastic waste , pollute the environment; ordinary steel formwork has a large quality, is easy to rust, and is easy to stick to the concrete during the concrete pouring process, making demoulding difficult
The building aluminum alloy formwork that has appeared now has good durability and meets the requirements for strength and performance, but it cannot self-degrade in complex environments and requires heavy formwork removal.

Method used

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Examples

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Effect test

Embodiment 1

[0022] Example 1: A degradable aluminum-based material with a reaction temperature of 900°C when it is produced, containing 30% by volume of pure aluminum and 70% by volume of Al 4 C 3 , The measured yield strength is 160MPa, and the complete degradation time is 2 months.

Embodiment 2

[0023] Example 2: A degradable aluminum-based material, the reaction temperature of which is 900°C when it is produced, contains 50% by volume of pure aluminum and 50% by volume of Al 4 C 3 , The measured yield strength is 150MPa, and the complete degradation time is 3 months.

Embodiment 3

[0024] Example 3: A degradable aluminum-based material, the reaction temperature of which is 900°C when it is produced, contains 70% by volume of pure aluminum and 30% by volume of Al 4 C 3 , The measured yield strength is 100MPa, and the complete degradation time is 6 months.

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PUM

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Abstract

The invention discloses a degradable aluminum-base material which is formed in a manner that Al4C3 is uniformly distributed in a pure aluminum or aluminum alloy base, wherein the volume percent of Al4C3 is 20-70%. The degradation time of the degradable aluminum-base material and the content of Al4C3 in an aluminum alloy are related to the environment humidity; the greater the volume percent of Al4C3 and the environment humidity are, the higher the degradation rate is and the shorter the material bearing time is. The degradable aluminum-base material is prepared by a vacuum melting technology; degradation products of the degradable aluminum-base material are CH4 and Al(OH)3; the decomposition products enter the atmosphere and soil, so that no pollution is caused to the environment; and the degradable aluminum-base material is environmentally friendly.

Description

technical field [0001] The invention belongs to the field of metal materials, in particular to a degradable aluminum-based structural material. Background technique [0002] With the rapid development of the economy, my country's construction system has developed greatly, and we need to construct buildings in many complex environments. At present, concrete pouring in the construction industry needs to be fixed and supported by formwork, so the requirements for building formwork are getting higher and higher. For example, in the construction of offshore operating platforms, due to complex environmental factors, a formwork with high strength, good performance, and no need to be dismantled is required. Wood formwork is widely used, although it is light in weight, its strength is low, it is not waterproof, and it consumes a lot of wood resources, which is not conducive to the protection of ecological environment and forest resources; plastic formwork is poor in rigidity, easy t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C1/10C22C21/00C22C32/00
Inventor 薛烽秦龙白晶周健张成
Owner SOUTHEAST UNIV
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