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Technological process of utilizing multicomponent second phase change in regulating aluminium-base solid solution component

A process method and solid solution technology are applied in the field of adjusting the composition of aluminum-based solid solution by using multiple second phase transitions, which can solve the problem of inability to optimize and control the Fe and Si solid solubility of aluminum foil wool and the treatment process, and without dynamic adjustment of the composition of aluminum-based solid solution, etc. problems, to achieve the effect of reducing production costs, reducing quality requirements, and wide application

Inactive Publication Date: 2003-02-26
CHONGQING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In this respect, there is no literature report in this respect in China at present; abroad, only Japanese patent literature (Shao 61-119658) has reported the related technology of reducing the solid solubility of Fe and Si in aluminum matrix, but this patent is only From the perspective of prolonging the precipitation annealing time to reduce the solid solubility of Fe and Si, without involving the dynamic adjustment of the aluminum-based solid solution composition from the perspective of phase transition, it cannot effectively adjust the solid solubility of Fe, Si and aluminum foil wool. Optimal control of the treatment process

Method used

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Examples

Experimental program
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Embodiment

[0015] In the embodiment of the present invention, the alloy system is AA1235, and its chemical composition is shown in Table 1. The Fe content is adjusted between 0.38-0.46 wt%, and the Si content is adjusted between 0.10-0.13 wt%.

[0016] Cu

Mg

mn

Fe+Si

Zn

Ti

V

other

Al

no greater than

single

total

not less than

0.05

0.05

0.05

0.65

0.01

0.03

0.05

0.03

99.35

[0017] The ingot of 480×1060×4500mm is cast by semi-continuous casting process, the casting speed is 60mm / min, the casting temperature is 740°C, and the casting water pressure is 0.2MPa. The ingots were homogenized at 560°C for 13 hours and then hot-rolled. The starting temperature of hot rough rolling is higher than 480°C, and the finishing temperature of hot finishing rolling is higher than 220°C. The hot finish rolling thickness is 4.5mm. The hot finish rolling billet is cold-rolled to 1.0...

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Abstract

The present invention is a technological process of utilizing multicomponent second phase change in regulating aluminium-based solid solution component, and relates especially to the technological process of regulating solid solution components in crude aluminium foil. Different phase change reactions in aluminium alloy for aluminium foil is utilized and the phase change reaction is controlled in thermodynamic and dynamic conditions to regulate the aluminium-base solid solution component effectively. The process can optimize the Fe and Si solid solubility, textural structure and treating process of crude aluminium foil.

Description

Technical field [0001] The invention belongs to a method for adjusting the composition of an aluminum-based solid solution in aluminum alloy processing technology, and in particular relates to a process method for adjusting the composition of an aluminum-based solid solution by utilizing multiple second phase transitions. Background technique [0002] Aluminum foil is an aluminum product with the most processes, the most difficult processing technology, and the thinnest thickness in aluminum alloy processing and production. As an extreme product, aluminum foil must be rolled with a negative roll gap. Under such rolling conditions, adjusting the rolling pressure has no effect on changing the thickness of the rolled product. The control factors that can be used are the rolling speed and the after tension, but they can only be adjusted to a limited extent. At this time, in order to obtain high-quality aluminum foil products, the quality of the aluminum foil wool itself is part...

Claims

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Application Information

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IPC IPC(8): C22F1/04
Inventor 张静潘复生汤爱涛丁培道王文高
Owner CHONGQING UNIV
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