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Preparation method for aluminum alloy resistant to fatigue damage for building template

A construction formwork and aluminum alloy technology, which is applied in the field of construction engineering materials, can solve the problems of low weather resistance and corrosion resistance, and achieve the effects of improving strength and toughness, increasing strength, and improving alloy strength

Inactive Publication Date: 2015-09-02
LIUZHOU PUYA TRADE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a method for preparing aluminum alloys for fatigue-resistant building formwork, which can solve the problems of low weather resistance and corrosion resistance of existing building formwork aluminum alloys

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] The aluminum alloy for fatigue damage-resistant building formwork of this embodiment includes the following alloying elements in weight percentage: Si0.028%, Fe0.056%, Cu1.58%, Mn0.008%, Mg2.45%, Zn5.8 %, Ti0.018%, Cr0.012%, Ni0.015%, Mo0.45%, V0.185%, B0.095%, total impurity≦0.15%, the rest is Al.

[0018] Its preparation method comprises the following steps:

[0019] A. Put the aluminum ingot into the melting furnace and heat it to 630°C, add the deslagging agent and stir after melting;

[0020] B. Continue heating to 665°C, keep warm for 15 minutes, remove the scum, mix Si, Fe, Cu, Mn, Mg, Zn, Ti, Cr, Ni, Mo, V and B evenly and put them into the melting furnace for melting. The melting temperature is 745°C;

[0021] C, add refining agent to the melt that step B obtains and carry out refining, remove slag in time after refining, leave standstill after 45 minutes, take a sample and analyze;

[0022] D. After the analysis of the alloy composition is qualified, the ca...

Embodiment 2

[0028] The aluminum alloy for fatigue damage-resistant building formwork of this embodiment includes the following alloying elements in percentage by weight: Si0.02%, Fe0.05%, Cu1.4%, Mn0.005%, Mg2.3%, Zn6.3 %, Ti0.03%, Cr0.01%, Ni0.02%, Mo0.2%, V0.2%, B0.12%, total impurity≦0.15%, the rest is Al.

[0029] Its preparation method comprises the following steps:

[0030] A. Put the aluminum ingot into the melting furnace and heat it to 620°C, add the deslagging agent and stir after melting;

[0031] B. Continue heating to 660°C. After holding the heat for 20 minutes, remove the scum, mix Si, Fe, Cu, Mn, Mg, Zn, Ti, Cr, Ni, Mo, V and B evenly and put them into the melting furnace for melting. The melting temperature is 740°C;

[0032] C, add refining agent to the melt that step B obtains and carry out refining, remove slag in time after refining is completed, after standing for 30 minutes, take a sample and analyze;

[0033] D. After the analysis of the alloy composition is qua...

Embodiment 3

[0039] The aluminum alloy for fatigue damage-resistant building formwork of this embodiment includes the following alloying elements in percentage by weight: Si0.04%, Fe0.06%, Cu1.8%, Mn0.01%, Mg2.6%, Zn5.2 %, Ti0.01%, Cr0.015%, Ni0.01%, Mo0.6%, V0.15%, B0.06%, total impurity≦0.15%, the rest is Al.

[0040] Its preparation method comprises the following steps:

[0041] A. Put the aluminum ingot into the melting furnace and heat it to 640°C, add the deslagging agent and stir after melting;

[0042] B. Continue heating to 680°C, keep warm for 10 minutes, remove the scum, mix Si, Fe, Cu, Mn, Mg, Zn, Ti, Cr, Ni, Mo, V and B evenly and put them into the melting furnace for melting. The melting temperature is 750°C;

[0043] C, add refining agent to the melt that step B obtains and carry out refining, remove slag in time after refining is completed, leave standstill after 60 minutes, take a sample and analyze;

[0044] D. After the analysis of the alloy composition is qualified, ...

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Abstract

The invention discloses a preparation method for aluminum alloy resistant to fatigue damage for a building template and relates to the field of building engineering materials. The preparation method includes the steps of melting aluminum ingots prior to heating molten aluminum ingots to 660-680 DEG C, descumming, uniformly mixing Si, Fe, Cu, Mn, Mg, Zn, Ti, Cr, Ni, Mo, V and B and adding an obtained mixture into a furnace for smelting; adding refining agents into a melt for refining and standing for 30-60 minutes; taking out from the furnace to cast to obtain a casting blank; placing the casting blank into a melting furnace, heating the casting blank to 720-730 DEG C, stirring for 10-15 minutes after complete smelting, refining at the temperature of 715-730 DEG C, standing for 10-20 minutes and then casting to obtain a cast ingot; subjecting the cast ingot to homogenization treatment at the temperature of 550-570 DEG C; subjecting the homogenized cast ingot to mist cooling to enable the homogenized cast ingot to be below 180 DEG C, and air cooling to the room temperature. The preparation method solves the problems of poor weatherability and low corrosion resistance of existing aluminum alloy for the building template.

Description

technical field [0001] The invention relates to the technical field of building engineering materials, in particular to a method for preparing aluminum alloys for fatigue damage-resistant building templates. Background technique [0002] Aluminum alloy is a low-carbon material that is environmentally friendly, recyclable and recyclable. It is widely used in the fields of automobiles, ships, aerospace, machinery manufacturing and construction. At present, in the field of construction, aluminum alloys are mostly used to make aluminum alloy doors and windows, Curtain wall, building formwork, etc. Among them, aluminum alloy building formwork has the advantages of light weight, convenient construction, high construction efficiency, not easy to rust and corrosion, long service life, high recycling value, etc., and is gradually replacing traditional wood formwork, steel formwork and plastic template. However, the strength and toughness of the existing aluminum alloy templates stil...

Claims

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Application Information

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IPC IPC(8): C22C1/02C22C21/10C22F1/053
Inventor 王剑平
Owner LIUZHOU PUYA TRADE
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