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Magnesium alloy for building formwork and preparation method thereof

A technology of building formwork and magnesium alloy, which is applied in the field of light alloy processing, can solve the problems of non-corrosion resistance cost, poor mechanical properties, large proportion and unfavorable construction, etc., and achieve the effect of good corrosion resistance, good economic benefits, and high strength

Active Publication Date: 2021-11-23
CHONGQING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the above-mentioned existing building formwork technology, the purpose of the present invention is to provide a magnesium alloy for building formwork and its preparation method, which solves the problem of poor mechanical properties of the existing building formwork, which is not conducive to construction due to its large proportion, and is not resistant to corrosion and high cost problem

Method used

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  • Magnesium alloy for building formwork and preparation method thereof
  • Magnesium alloy for building formwork and preparation method thereof
  • Magnesium alloy for building formwork and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] 1) Using pure magnesium ingot, pure aluminum ingot, pure zinc ingot and magnesium-manganese master alloy as raw materials, carry out mechanical grinding, according to Zn: 4.0%, Al: 0.5%, Mn: 0.5%, the balance is magnesium and inevitable impurities The mass percentage content of the ingredients is calculated;

[0028] 2) Preheat pure magnesium, pure aluminum, pure zinc and magnesium-manganese master alloy at 300℃ for 30min, then put pure magnesium ingot in resistance furnace, in SF with volume ratio of 1:99 6 and CO 2 It is completely melted under the protection of the mixed gas, and after the temperature of the magnesium melt is raised to 720 °C to stabilize, the magnesium-manganese master alloy, pure aluminum and ingot are added to the completely melted magnesium melt. When the temperature rises to 720 When the temperature is 10 min, the alloy is poured into a mold preheated to 300 °C, and the magnesium alloy ingot is obtained after cooling;

[0029] 3) machining the...

Embodiment 2

[0032] 1) Using pure magnesium ingot, pure aluminum ingot, pure zinc ingot and magnesium-manganese master alloy as raw materials, carry out mechanical grinding, according to Zn: 4.0%, Al: 0.3%, Mn: 0.3%, the balance is magnesium and inevitable impurities The mass percentage content of the ingredients is calculated;

[0033] 2) Preheat pure magnesium, pure aluminum, pure zinc and magnesium-manganese master alloy at 300℃ for 30min, then put pure magnesium ingot in resistance furnace, in SF with volume ratio of 1:99 6 and CO 2 It is completely melted under the protection of the mixed gas, and after the temperature of the magnesium melt is raised to 720 °C to stabilize, the magnesium-manganese master alloy, pure aluminum and ingot are added to the completely melted magnesium melt. When the temperature rises to 720 When the temperature is 10 min, the alloy is poured into a mold preheated to 300 °C, and the magnesium alloy ingot is obtained after cooling;

[0034] 3) machining the...

Embodiment 3

[0037] 1) Use pure magnesium ingots, pure strontium, pure zinc ingots and magnesium-manganese master alloys as raw materials for mechanical grinding, according to Zn: 2.0%, Sr: 0.3%, Mn: 1.5%, and the balance is magnesium and unavoidable impurities. The mass percentage is used to calculate the ingredients.

[0038] 2) Preheat pure magnesium, pure strontium, pure zinc and magnesium-manganese master alloy at 300°C for 30 minutes, then place the pure magnesium ingot in a resistance furnace, in the SF with a volume ratio of 1:99 6 and CO 2 Under the protection of the mixed gas, it is completely melted, and the temperature of the magnesium melt is raised to 720°C. At ~740°C, after holding for 10 minutes, pour the alloy into a mold preheated to 300°C, and obtain a magnesium alloy ingot after cooling;

[0039] 3) Machining the magnesium alloy ingot obtained in step 2) to a specified size to obtain a magnesium alloy profile;

[0040] 4) Use an extrusion die to hot-extrude the magne...

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Abstract

The invention discloses a magnesium alloy for building templates and a preparation method thereof. The magnesium alloy material is composed of the following mass fraction components: Zn: 1.0%~5.0%, Al: <0.6%, Mn: <1.0%, Al and Mn is not 0, the balance is magnesium and unavoidable impurities, or Zn: 1.0%~5.0%, Mn: 1.0%~4.0%, Sr: 0.2%~1.5%, the balance is magnesium and unavoidable impurities . The magnesium alloy for building formwork prepared by the invention has high strength, good plasticity, weak anisotropy, good processing deformation performance, good impact resistance, and more uniform force. Crack has good demoulding performance, meets the performance requirements of building templates, and has simple process, strong operability, fully recyclable materials, high reuse rate, green environmental protection, low cost, and has good application prospects and economic benefits.

Description

technical field [0001] The invention relates to a preparation method of a deformed alloy, in particular to a magnesium alloy for a building template and a preparation method thereof, belonging to the technical field of light alloy processing. Background technique [0002] Building formwork is the main tool for the construction of concrete structure projects. It usually plays the role of support and protection during the pouring process. It consumes a lot in construction projects. Formwork technology directly affects the quality and cost of construction projects. Therefore, it promotes the progress of construction technology. an important content. In recent years, my country's real estate industry has developed rapidly, and building templates have also developed rapidly. [0003] At present, the main materials of commercial building formwork are: 1. Wood formwork, light weight and good versatility; but very limited mechanical properties, it is easy to break in the process of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C23/04C22C1/03C22F1/06
CPCC22C1/03C22C23/04C22F1/06
Inventor 汤爱涛米晓希佘加彭鹏何熊江川潘天
Owner CHONGQING UNIV
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