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Method for preparing ZL114A aluminum alloy semi-solid slurry by using pulsed magnet field

A ZL114A, semi-solid slurry technology, applied in the field of ZL114A aluminum alloy semi-solid slurry preparation, can solve the problems of staying in the laboratory research, and achieve the effect of simple operation, simple equipment, high efficiency and low energy consumption

Inactive Publication Date: 2012-10-03
NANCHANG HANGKONG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Various pulping methods have their own characteristics, but most of them are still in the laboratory research stage, and few of them have been applied in industry.

Method used

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  • Method for preparing ZL114A aluminum alloy semi-solid slurry by using pulsed magnet field
  • Method for preparing ZL114A aluminum alloy semi-solid slurry by using pulsed magnet field
  • Method for preparing ZL114A aluminum alloy semi-solid slurry by using pulsed magnet field

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Example 1 The pulse magnetic field voltage is set to 250V; the pulse magnetic field frequencies are 3 Hz, 6 Hz, 10 Hz, and 15 Hz; the pulse magnetic field treatment time is 2.5 minutes; after the treatment, the temperature is kept for 3 minutes.

Embodiment 2

[0015] Example 2 The frequency of the pulse magnetic field is set to 10 Hz; the pulse voltage is 150V, 200V, and 250V; the pulse magnetic field treatment time is 2.5 minutes; after the treatment, the temperature is kept for 3 minutes.

Embodiment 3

[0016] In Example 3, the pulse magnetic field frequency was set to 10 Hz; the pulse magnetic field voltage was 250V; the magnetic field treatment time was 1.5 minutes, 2.5 minutes, and 6 minutes; after the treatment, the temperature was kept for 3 minutes.

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Abstract

The invention discloses a method for preparing ZL114A aluminum alloy semi-solid slurry by using a pulsed magnet field. The method comprises the following steps of: pouring a molten ZL114A aluminum alloy melt into a preheated preparation device; reducing the temperature to 0 to 30 DEG C above the liquidus temperature; applying the pulsed magnet field to the ZL114A alloy melt for oscillation treatment, wherein the frequency of the pulsed magnet field is 1 to 15Hz, the voltage of the pulsed magnet field is 10 to 250V, the cooling rate of the alloy melt is 0.1 to 2 DEG C / s when the melt is treated by using the pulsed magnet field, and the treatment temperature range of the pulsed magnet field is 0 to 30 DEG C above an alloy liquidus; finishing the treatment of the pulsed magnet field till the temperature of 5 to 35 DEG C below the liquidus, wherein the treatment time of the pulsed magnet field is 0.5 to 6 minutes, and the concrete treatment time and the final treatment temperature are determined according to the requirement of a product on the solid fraction; and preserving heat for 1 to 5 minutes to obtain a finished product. The process is simple, efficient and low in energy consumption; and by the method, high-quality ZL114A aluminum alloy semi-solid slurry can be prepared.

Description

Technical field [0001] The invention relates to a method for preparing ZL114A aluminum alloy semi-solid slurry by using a pulsed magnetic field. Background technique [0002] Due to its unique advantages such as high product quality and performance, energy saving in process, and near (net) forming, semi-solid forming technology is known as one of the most promising metal material processing technologies in the 21st century. Semi-solid forming technology is divided into thixoforming and rheological forming. Whether it is thixoforming or rheological forming, it includes two parts: semi-solid pulping and semi-solid forming. Among them, pulping is the basis and key of the whole process. How to make stable and effective preparation with round and small , Semi-solid slurry with uniform non-dendritic structure has become a research hotspot in the field of semi-solid processing technology. At present, the main preparation methods of semi-solid slurry are: mechanical stirring method, e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/02C22C1/00B22D1/00B22D27/02B22D17/00B22D17/30
Inventor 张磊邱辉周全尧军平
Owner NANCHANG HANGKONG UNIVERSITY
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