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Production process of aluminum alloy section

An aluminum alloy profile and production process technology, applied in the field of alloy casting production, can solve the problems of low density, poor chemical stability, surface defects, etc., and achieve the effect of high ductility and strength, high internal compactness, and smooth surface

Inactive Publication Date: 2013-12-18
HENAN HUILONG ALUMINUM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, aluminum alloy profiles are widely used in the market because of their light weight, good processing performance and excellent thermal conductivity. However, the traditional aluminum alloy profiles are relatively poor in purity, internal structure density and electrical conductivity. Among them, the processing technology is generally to obtain aluminum alloy profiles with different cross-sectional shapes through hot melting and extrusion of aluminum rods. This traditional process method has poor chemical stability when aluminum alloys are formed, and the internal density is low. Serious surface damage There are obvious defects, which greatly affect the processing type and appearance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A production process of aluminum alloy profiles, which includes the following steps:

[0021] 1). Preparation of aluminum alloy casting rods: clean the melting furnace, wash the furnace with pure aluminum ingots, put the aluminum ingots and / or aluminum water into the melting furnace to heat and melt, and add Mg, Si, Cu, Mn, Gr and Ti, and stir evenly, when the melt temperature is 730℃, carry out powder spraying and refining, let stand for 20 minutes, then slag off; ensure that the alloy mass percentage composition is 0.25%~1.2%Si, 0.50%~1.5% Mg, 0.6%~1.2%Cu, 0.1%~0.8%Mn, 0.01%~0.8%Gr, 0.01%~0.15%Ti, the balance is aluminum; stir evenly, after grain refinement, slag removal, refining and degassing , Filter, the aluminum alloy solution is continuously cast into a rod-shaped aluminum alloy casting rod, and the rod-shaped aluminum alloy casting rod is sawed into multiple sections;

[0022] 2) Hot extrusion molding includes the following sub-steps:

[0023] 201), casting rod heat...

Embodiment 2

[0032] A production process of aluminum alloy profiles, which includes the following steps:

[0033] 1). Preparation of aluminum alloy casting rods: clean the melting furnace, wash the furnace with pure aluminum ingots, put the aluminum ingots and / or aluminum water into the melting furnace to heat and melt, and add Mg, Si, Cu, Mn, Gr and Ti, and stir evenly, when the melt temperature is 750℃, carry out powder spraying and refining, let stand for 40 minutes, and then slag off; ensure that the alloy mass percentage composition is 0.25%~1.2%Si, 0.50%~1.5% Mg, 0.6%~1.2%Cu, 0.1%~0.8%Mn, 0.01%~0.8%Gr, 0.01%~0.15%Ti, the balance is aluminum; stir evenly, after grain refinement, slag removal, refining and degassing , Filter, the aluminum alloy solution is continuously cast into a rod-shaped aluminum alloy casting rod, and the rod-shaped aluminum alloy casting rod is sawed into multiple sections;

[0034] 2) Hot extrusion molding, including the following sub-steps:

[0035] 201), casting ro...

Embodiment 3

[0044] A production process of aluminum alloy profiles, which includes the following steps:

[0045] 1). Preparation of aluminum alloy casting rods: clean the melting furnace, wash the furnace with pure aluminum ingots, put the aluminum ingots and / or aluminum water into the melting furnace to heat and melt, and add Mg, Si, Cu, Mn, Gr and Ti, and mix them evenly. When the melt temperature is 740℃, carry out powder spraying and refining, and let it stand for 30 minutes before removing slag; ensure that the alloy mass percentage composition is 0.25%~1.2%Si, 0.50%~1.5% Mg, 0.6%~1.2%Cu, 0.1%~0.8%Mn, 0.01%~0.8%Gr, 0.01%~0.15%Ti, the balance is aluminum; stir evenly, after grain refinement, slag removal, refining and degassing , Filter, the aluminum alloy solution is continuously cast into a rod-shaped aluminum alloy casting rod, and the rod-shaped aluminum alloy casting rod is sawed into multiple sections;

[0046] 2) Hot extrusion molding, including the following sub-steps:

[0047] 201...

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Abstract

The invention discloses a production process of an aluminum alloy section. The aluminum alloy section having a smooth surface and high compactness is produced through the process steps such as aluminum alloy cast rod preparation, hot extrusion and molding, on-line quenching, stretch rolling, saw cutting, artificial aging, finished product saw cutting, packaging and the like. By strictly controlling the preheating temperature of the whole process, the aluminum alloy section produced through quenching and stretch rolling has no scratch, no bubble, no extrusion streak and no corrosion spot on the surface, has a smooth and level surface, and is high in ductility, strength and internal compactness.

Description

Technical field [0001] The invention relates to the field of alloy casting production, in particular to a production process of aluminum alloy profiles. Background technique [0002] At present, aluminum alloy profiles are widely used in the market because of their light weight, good processing performance and excellent thermal conductivity. However, the traditional aluminum alloy profiles are relatively poor in purity, internal structure density and electrical conductivity. Among them, the processing technology is generally to obtain aluminum alloy profiles with different cross-sectional shapes through hot melting and extrusion of aluminum rods. This traditional process method has poor chemical stability during aluminum alloy forming, low internal density, and serious surface There are obvious defects, which greatly affect the processing and appearance. Summary of the invention [0003] In order to overcome the above shortcomings, the present invention provides a process for pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/00C22C1/02C22F1/04C21D8/00
Inventor 田长江
Owner HENAN HUILONG ALUMINUM IND
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