Extruding technology of aluminum alloy profile

A technology of aluminum alloy profiles and processes, which is applied in the direction of metal extrusion, metal extrusion control equipment, metal processing equipment, etc., can solve the problem of inability to obtain comprehensive mechanical properties of aluminum profiles, the inability to ensure the uniformity of bar structure composition, quenching and Improper handling of straightening and other problems can eliminate the effects of long production cycle, good plasticity and good comprehensive mechanical properties

Inactive Publication Date: 2018-04-20
朱旭
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because the heating temperature of the existing aluminum rods before extrusion molding is generally 450-500 ° C, the temperature is relatively high, and the extrusion speed of the aluminum rods is relatively slow, and the quenching and straightening after extrusion are not handled properly, so it cannot be Ensure the uniformity of the structure and composition of the bar, so that it is impossible to obtain aluminum profiles with better comprehensive mechanical properties

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] An extrusion process of aluminum alloy profiles, including aluminum ingot heating, mold heating, ingot tube heating, extrusion, quenching, artificial aging, straightening, and sizing, wherein:

[0035] The aluminum ingot is heated as follows: put the aluminum ingot into the heating furnace, heat it to 430°C through the induction coil in the heating furnace, and keep it warm for 16 minutes; in the aluminum ingot heating step, the aluminum ingot head coming out of the heating The end temperature is 465±5°C, and the temperature difference between the head and tail of the aluminum ingot is controlled between 15°C and 20°C.

[0036] Mold heating is as follows: heat the mold to 485°C through a mold heating furnace, and then keep it warm for 30 minutes to obtain a heated mold;

[0037] The heating of the ingot cylinder is as follows: heat the ingot cylinder to 460°C, keep it warm for a long time, and keep the power off when the shift is over;

[0038] Extrusion: Send the heat...

Embodiment 2

[0046] An extrusion process of aluminum alloy profiles, including aluminum ingot heating, mold heating, ingot tube heating, extrusion, quenching, artificial aging, straightening, and sizing, wherein:

[0047] The aluminum ingot is heated as follows: put the aluminum ingot into the heating furnace, heat it to 465°C through the induction coil in the heating furnace, and keep it warm for 16-20min; The temperature at the head end of the ingot is 465±5°C, and the temperature difference between the head and the tail of the aluminum casting ingot is controlled between 15°C and 20°C.

[0048] Mold heating is as follows: heat the mold to 495°C through a mold heating furnace, and then keep it warm for 40 minutes to obtain a heated mold;

[0049] The heating of the ingot cylinder is as follows: heat the ingot cylinder to 485°C, keep it warm for a long time, and keep the power off when the shift is over;

[0050] Extrusion: Send the heated mold into the heat-insulated ingot barrel for ex...

Embodiment 3

[0058] An extrusion process of aluminum alloy profiles, including aluminum ingot heating, mold heating, ingot tube heating, extrusion, quenching, artificial aging, straightening, and sizing, wherein:

[0059] The aluminum ingot is heated as follows: put the aluminum ingot into the heating furnace, heat it to 450°C through the induction coil in the heating furnace, and keep it warm for 18 minutes; in the above aluminum ingot heating step, the aluminum ingot head coming out of the heating furnace The end temperature is 465±5°C, and the temperature difference between the head and tail of the aluminum ingot is controlled between 15°C and 20°C.

[0060] Mold heating is as follows: heat the mold to 490°C through a mold heating furnace, and then keep it warm for 35 minutes to obtain a heated mold;

[0061] The heating of the ingot cylinder is as follows: heat the ingot cylinder to 475°C, keep it warm for a long time, and keep the power off when the shift is over;

[0062] Extrusion:...

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Abstract

The invention discloses an extrusion process of an aluminum alloy profile, belongs to the technical field of aluminum profile preparation, and aims to ensure the uniformity of the structure and composition of the bar. The invention includes aluminum ingot heating, mold heating, ingot tube heating, extrusion, quenching, artificial aging, straightening and length determination. The invention is conducive to the formation of the microstructure of the material, which is dominated by fiber grains and a very small amount of recrystallized structure. After a certain amount of tensile deformation, uniform and consistent grain structures are formed in various parts of the profile, and the rational design of the post-processing method is added. , to obtain aluminum profiles with good uniformity in structure and composition, so that the aluminum profiles have better comprehensive mechanical properties. The tensile strength of the aluminum profiles can reach more than 600Mpa, and the elongation after breaking can reach more than 15%.

Description

technical field [0001] The invention belongs to the technical field of aluminum profile preparation, and in particular relates to an extrusion process of aluminum alloy profiles. Background technique [0002] Aluminum alloy profiles are currently a relatively common material, which has the advantages of good corrosion resistance, electrical conductivity, thermal conductivity, non-ferromagnetic, machinable, formable and recyclable, and is popular in many industries. Favored, such as widely used in national defense, aviation, construction, electric power, communications, automobiles, medical and daily necessities and other fields. [0003] In recent years, with the advancement of my country's large-scale infrastructure investment and industrialization process, the output and consumption of the entire aluminum profile industry have grown rapidly. Aluminum profiles are aluminum materials with different cross-sectional shapes obtained by aluminum rods through processes such as m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21C23/04B21C29/00B21C31/00C22F1/04
CPCB21C23/04B21C29/003B21C31/00C22F1/04
Inventor 朱旭
Owner 朱旭
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