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Solid solution treatment technology for improving mechanical property of 4032 aluminum alloy

A technology of solution treatment and aluminum alloy, applied in the field of solution treatment process to improve the mechanical properties of 4032 aluminum alloy, can solve the problems of reducing the yield, affecting the rolling process, reducing the mechanical properties of the alloy, etc.

Inactive Publication Date: 2015-12-30
罗伟
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the high content of silicon in the 4032 alloy, the silicon phase is in the form of coarse flakes or needles, which severely splits the matrix, reduces the mechanical properties of the alloy, especially the plasticity, affects the subsequent rolling process, and reduces the yield.

Method used

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  • Solid solution treatment technology for improving mechanical property of 4032 aluminum alloy
  • Solid solution treatment technology for improving mechanical property of 4032 aluminum alloy

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0011] The test uses 4032 aluminum alloy as raw material, weighs a certain amount of 4032 aluminum alloy and puts it into a resistance crucible furnace for heating and melting, and performs rotary blowing and refining treatment on the melt, and then adds a certain amount of RE-Ba-Sb modifier into the solution , to stir the melt. Then after a period of heat preservation, it is poured into a metal mold preheated at 400°C. Among them, the rotary injection equipment XD-J-100BP degassing refiner. The specific process is: blowing high-purity argon gas (99.999%) with a pressure of 0.5MPa, the gas flow rate is 0.4m3 / h, the rotor speed is 400r / min, and the refining time is 15min.

[0012] The specific process of modification is to raise the temperature of the melt to a modification temperature of 760°C, add a modification agent, stir well, keep it warm for 60 minutes, then lower the temperature to 720°C, and cast directly without removing slag, so that the melt flows evenly and prehea...

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Abstract

The invention discloses a solid solution treatment technology for improving the mechanical property of 4032 aluminum alloy. The solid solution treatment technology is characterized by comprising the steps that the 4032 aluminum alloy is adopted as raw materials and heated to be melted, the temperature of the melt is increased to a metamorphic temperature of 760 DEG C, a metamorphic agent is added, the mixture is fully stirred, heat preservation is performed for 60 min, and then the temperature is lowered to 720 DEG C; casting is directly performed without performing deslagging to enable the melt to evenly flow into a metal model preheated to 400 DEG C; at the solid solution temperature of 480 DEG C-540 DEG C, heat preservation is performed for 1-9 h, solid solution treatment is performed, and the melt is quickly quenched into cold water and then aged at 200 DEG C for 6 h.

Description

technical field [0001] The invention relates to a treatment process of 032 aluminum alloy, in particular to a solid solution treatment process for improving the mechanical properties of 4032 aluminum alloy. Background technique [0002] 4032 aluminum alloy is used as the cladding layer of 434 composite aluminum strip and foil, which is widely used in the manufacture of radiators such as automobiles, air conditioners, and oxygen generators. Due to the high content of silicon in the 4032 alloy, the silicon phase is in the form of coarse flakes or needles, which severely splits the matrix, reduces the mechanical properties of the alloy, especially the plasticity, affects the subsequent rolling process, and reduces the yield. . An important means to improve the comprehensive mechanical properties of aluminum alloy is to refine the alloy structure. The microstructure of aluminum-silicon alloy can be refined by modification treatment, and aluminum or silicon can be refined by us...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22F1/043
Inventor 罗伟
Owner 罗伟
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