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Fusion casting production process capable of improving compressive strength of aluminium profile

A technology of compressive strength and production process, which is applied in the field of aluminum alloy melting and casting, can solve the problems of insufficient compressive strength of aluminum profiles, etc., to improve the tendency of hot cracking, improve the strength and stress corrosion resistance, and improve the tensile performance and fracture toughness Effect

Active Publication Date: 2019-11-22
FUJIAN MINFA ALUMINUM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Therefore, in view of the above content, the present invention provides a melting and casting production process for improving the compressive strength of aluminum profiles, so as to solve the problem of insufficient compressive strength of aluminum profiles in the prior art

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A melting and casting production process for improving the compressive strength of aluminum profiles is characterized in that it includes the following steps:

[0026] (1) Prepare materials: the mass fractions of each element in the aluminum profile are: 0.18% Si, 0.3% Fe, 0.03% Be, 0.01% Mn, 0.045% Cr, 0.09% Ti, 0.15% Y, 0.2% Zn, 3.6% Cu, 2.2% Mg, the balance is Al, where Cu, Mg, Zn are added in the form of pure metal, Fe, Be, Mn, Cr, Ti, Y are added in the form of metal additives, Al is added in the form of aluminum ingots for remelting form join;

[0027] (2) Melting: heat up the melting furnace to 720°C, and then add raw materials to melt it into a uniform melt. The order of feeding is to put the aluminum ingot for remelting into the melting furnace first, and then wait until the aluminum ingot for remelting is completely melted. , then add fast-melting Si and various metal additives, after the solid melts, remove the slag, push the furnace bottom and furnace wall ...

Embodiment 2

[0034] A melting and casting production process for improving the compressive strength of aluminum profiles is characterized in that it includes the following steps:

[0035] (1) Preparation of materials: the mass fractions of each element in the aluminum profile are: 0.22% Si, 0.32% Fe, 0.01% Be, 0.05% Mn, 0.06% Cr, 0.05% Ti, 0.2% La, 0.3% Zn, 1.8% Cu, 2.5% Mg, and the balance is Al, where Cu, Mg, and Zn are added in the form of pure metals, Fe, Be, Mn, Cr, Ti, La are added in the form of metal additives, and Al is added in the form of aluminum ingots for remelting form join;

[0036](2) Melting: heat up the melting furnace to 735°C, and then add raw materials to melt it into a uniform melt. The order of feeding is to put the aluminum ingot for remelting into the melting furnace first, and then wait until the aluminum ingot for remelting is completely melted. , then add fast-melting Si and various metal additives, after the solid melts, remove the slag, push the furnace bott...

Embodiment 3

[0043] A melting and casting production process for improving the compressive strength of aluminum profiles is characterized in that it includes the following steps:

[0044] (1) Prepare materials: the mass fractions of each element in the aluminum profile are: 0.25% Si, 0.28% Fe, 0.02% Be, 0.1% Mn, 0.03% Cr, 0.07% Ti, 0.25% Ce, 0.1% Zn, 2.7% Cu, 2.8% Mg, and the balance is Al, where Cu, Mg, and Zn are added in the form of pure metals, Fe, Be, Mn, Cr, Ti, and Ce are added in the form of metal additives, and Al is added in the form of aluminum ingots for remelting form join;

[0045] (2) Melting: heat up the melting furnace to 750°C, and then add raw materials to melt it into a uniform melt. The order of feeding is to put the aluminum ingot for remelting into the melting furnace first, and then wait until the aluminum ingot for remelting is completely melted. , then add fast-melting Si and various metal additives, after the solid melts, remove the slag, push the furnace bottom...

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Abstract

The invention relates to a fusion casting production process capable of improving compressive strength of an aluminium profile. The problem that the compressive strength of the aluminium profile is not sufficient in the prior art can be solved. The process comprises the following steps of firstly, preparing, wherein the aluminum profile comprises, by mass percent, 0.18 to 0.25% of Si, 0.28 to 0.32% of Fe, 0.01 to 0.03% of Be, 0 to 0.1% of Mn, 0.03 to 0.06% of Cr, 0.05 to 0.09% of Ti, 0.15 to 0.25% of rare earth element, 0.1 to 0.3% of Zn, 1.8 to 3.6% of Cu, 2.2 to 2.8% of Mg, and the balance Al; secondly, smelting; thirdly, refining; fourthly, standing and sampling analysis; fifthly, deslagging; and sixthly, casting, wherein the melt obtained after deslagging is casted to form a casting bar, the casting temperature is 695 to 710 DEG C, and the casting speed is 35 to 65 mm / min; and seventhly, homogenization annealing.

Description

technical field [0001] The invention relates to the technical field of aluminum alloy melting and casting, in particular to a melting and casting production process for improving the compressive strength of aluminum profiles. Background technique [0002] Aluminum profile is an alloy material with excellent characteristics such as light texture, strong plasticity, corrosion resistance, high electrical conductivity, high thermal conductivity, easy surface coloring, long service life, recyclable regeneration, etc. It can be widely used in architectural decoration, aerospace, machinery, etc. Manufacturing, electronic communication, petrochemical, home appliance and other industries. The production process of aluminum profiles mainly includes three processes of casting, extrusion and coloring. Melting and casting is the first process of aluminum profile production, which has a very important influence on the whole process of aluminum profile production. At present, many aluminu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/18C22C21/10C22C1/02C22C1/06C22F1/057C22F1/053
CPCC22C1/026C22C1/06C22C21/10C22C21/18C22F1/053C22F1/057
Inventor 黄长远傅孙明叶细发
Owner FUJIAN MINFA ALUMINUM
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