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Manufacturing method and die for industrial aluminum alloy profile with ultrahigh width-thickness ratio

A technology of aluminum alloy profiles and manufacturing methods, which is applied to the manufacturing method and mold field of industrial aluminum alloy profiles with ultra-high width-to-thickness ratios. High precision and plane precision, improved strength and stability, uniform and reasonable feeding structure

Inactive Publication Date: 2021-01-12
美图(福建)铝业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the processing cost of the rolled plate is high, the process is complicated, and the purpose of the rolled plate is single, so it is impossible to achieve diversity and variability
For profiles with special-shaped structures and ultra-high aspect ratios, such as screw holes for assembly, slots, or profiles with unequal wall thickness, rolling plates cannot achieve
For this reason, this kind of aluminum alloy extruded profile with a super high aspect ratio is limited by the tonnage of the extrusion equipment, which poses an important challenge to the one-time forming through extrusion.

Method used

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  • Manufacturing method and die for industrial aluminum alloy profile with ultrahigh width-thickness ratio
  • Manufacturing method and die for industrial aluminum alloy profile with ultrahigh width-thickness ratio
  • Manufacturing method and die for industrial aluminum alloy profile with ultrahigh width-thickness ratio

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Embodiment 1

[0062] A method for manufacturing an aluminum profile with an ultra-high width-thickness ratio for industrial use, comprising the following steps:

[0063] 1) Making molds for industrial aluminum alloy profiles with ultra-high width-thickness ratios;

[0064] 2) Select pure aluminum ingots with a purity greater than 99.9% as primary aluminum ingots;

[0065] 3) Casting:

[0066] 31) cleaning the original aluminum ingot, and drying the original aluminum ingot in front of the furnace door;

[0067] 32) Send the primary aluminum ingots processed in step 31) into a smelting furnace, use clean energy natural gas as smelting fuel for smelting, and the nitrogen purity required for refining is required to reach 99.99% or more; during the smelting process, control the smelting temperature 720 ℃-750℃, after the metal is completely melted, refining 4 times, each refining for at least 25 minutes, the amount of refining agent used is 2.5Kg / ton, and slag is removed; the furnace temperatur...

Embodiment 2

[0083] A method for manufacturing an aluminum profile with an ultra-high width-thickness ratio for industrial use, comprising the following steps:

[0084] 1) Making molds for industrial aluminum alloy profiles with ultra-high width-thickness ratios;

[0085] 2) Select pure aluminum ingots with a purity greater than 99.9% as primary aluminum ingots;

[0086] 3) Casting:

[0087] 31) cleaning the original aluminum ingot, and drying the original aluminum ingot in front of the furnace door;

[0088] 32) Send the primary aluminum ingots processed in step 31) into a smelting furnace, use clean energy natural gas as smelting fuel for smelting, and the nitrogen purity required for refining is required to reach 99.99% or more; during the smelting process, control the smelting temperature 720 ℃, after the metal is completely melted, refining 4 times, each refining for at least 25 minutes, the amount of refining agent used is 2.5Kg / ton, and slag is removed; the furnace temperature is ...

Embodiment 3

[0105] A method for manufacturing an aluminum profile with an ultra-high width-thickness ratio for industrial use, comprising the following steps:

[0106] 1) Making molds for industrial aluminum alloy profiles with ultra-high width-thickness ratios;

[0107] 2) Select pure aluminum ingots with a purity greater than 99.9% as primary aluminum ingots;

[0108] 3) Casting:

[0109] 31) cleaning the original aluminum ingot, and drying the original aluminum ingot in front of the furnace door;

[0110] 32) Send the primary aluminum ingots treated in step 31) into a smelting furnace, use clean energy natural gas as smelting fuel for smelting, and the nitrogen purity required for refining is required to be above 99.99%; during the smelting process, control the smelting temperature to 750 ℃, after the metal is completely melted, refining 4 times, each refining for at least 25 minutes, the amount of refining agent used is 2.5Kg / ton, and slag is removed; the furnace temperature is cont...

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Abstract

The invention discloses a manufacturing method and a die for an industrial aluminum alloy profile with an ultrahigh width-thickness ratio. The manufacturing method comprises the following steps that 1) the die for the industrial aluminum alloy profile with the ultrahigh width-thickness ratio is manufactured; 2) a pure aluminum ingot with the purity greater than 99.9% is selected as a raw aluminumingot; 3) casting is carried out; and 4) a round aluminum bar is extruded on a 4000 T forward extruder to obtain the aluminum alloy profile. According to the manufacturing method of the industrial aluminum alloy profile with the ultrahigh width-thickness ratio, the forming size and precision of the aluminum alloy profile with the ultrahigh width-thickness ratio are ensured through die design optimization, rapid batch production is facilitated, the mechanical property of the aluminum alloy profile is improved by optimizing alloy components on the basis of 6063 alloy profile, and through specific casting, extruding and aging processing technologies, the tensile strength of the aluminum alloy profile is greater than or equal to 220MPa.

Description

technical field [0001] The invention relates to the technical field of alloy profiles, in particular to the technical field of alloy profiles for ultra-high width-thickness ratio industrial use, and in particular to a manufacturing method and mold for an aluminum alloy profile with an ultra-high width-thickness ratio for industrial use. Background technique [0002] Generally, hot extruded aluminum profiles are divided into extrusion methods, which can be divided into circular extrusion barrel extrusion and flat extrusion barrel extrusion. Most of the extrusion cylinders used in general industrial profiles are extruded in the form of circular extrusion cylinders. The extrusion of circular extrusion cylinder has its conventional characteristics and requirements. The choice of thickness is related to the alloy, as well as the diameter of the circumscribed circle and the shape of the cross section. The larger the size of the circumscribed circle or the width of the profile, th...

Claims

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Application Information

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IPC IPC(8): C22C1/02C22C21/08B22D21/04C22F1/05
CPCB22D21/007C22C1/026C22C21/08C22F1/05
Inventor 洪志顺方江吴丽霞
Owner 美图(福建)铝业有限公司
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