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Preparation of aluminum alloy modifier

A manufacturing method and a modifier technology, which are applied in the field of rare earth RE as a modifier of aluminum alloys, and can solve the problems of difficult control of the addition amount, easy danger, and small addition amount of rare earth.

Inactive Publication Date: 2008-10-08
长葛市天润有色金属研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The role of rare earths in many fields has been recognized by people, but people have not mastered the addition process of non-ferrous metal recycling and smelting, especially in small and medium-sized smelting enterprises. It is difficult to add rare earths; because the amount of rare earths added is very small, the added amount is not easy to control ; Rare earth is easy to boil, easy to cause danger and other inconveniences, the successful development of rare earth aluminum alloy modifier greatly simplifies this process

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] After 100 kg of pure aluminum is melted, keep it warm at 950°C, then add 25 kg of metal cerium of 120 g per piece, stir evenly, let it stand for 30 minutes, and put it into a cast iron mold that can cast 100 modifiable agents per small unit Get it right away.

[0015] After 100 kg of recycled aluminum is melted, 1.5 kg of the modified agent obtained by this method is used to deteriorate, and the obtained product can achieve the purposes of reducing extrusion pressure, increasing extrusion speed, improving yield, increasing product smoothness, and increasing oxide film thickness.

Embodiment 2

[0017] After 100 kg of pure aluminum is melted, keep it warm at 940°C, then add 25 kg of metal praseodymium of 120 g per block, stir evenly, let it stand for 30 minutes, and put it into a mold that can cast 100 modifiable agents per small unit of cast iron Get it right away.

[0018] After 100 kg of secondary aluminum is melted, 1.4 kg of the modified agent obtained by this method is used to modify the quality, and the obtained product can reduce the extrusion pressure, increase the extrusion speed, improve the yield, increase the smoothness of the product, and increase the thickness of the oxide film.

Embodiment 3

[0020] After 100 kg of pure aluminum is melted, keep it warm at 940°C, then add 120 grams of metal praseodymium and 12.5 kg of lanthanum each, stir evenly, and let it stand for 30 minutes. Each small unit of cast iron can cast 100 metamorphisms It is ready in the mold of the agent.

[0021] After 100 kg of secondary aluminum is melted, 1.4 kg of the modified agent obtained by this method is used to modify the quality, and the obtained product can reduce the extrusion pressure, increase the extrusion speed, improve the yield, increase the smoothness of the product, and increase the thickness of the oxide film.

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PUM

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Abstract

The invention discloses a manufacturing method for aluminum alloy alterative. Rare earth alterative produced by using the method is used for deteriorating the recycled aluminum to attain the purposes that the extrusion pressure is reduced, the extrusion speed is increased, the finished product rate is improved, the smoothness of the product is increased, and the oxide film thickness is increased. The method comprises the steps that the pure aluminum is weighed according to the weight ratio of 4 to 4.5: 1 to be melted, and the temperature is kept at 930 DEG C to 950 DEG C; the weighed rare earth blocks are added, then melted and stirred; and then the mixed solution is discharged to obtain the aluminum alloy alterative.

Description

technical field [0001] The present invention relates to the manufacture method of modificator, more specifically, the present invention is the method that uses rare earth RE (lanthanum La, cerium Ce, praseodymium Pr) as aluminum alloy modificator, and the technical field of belonging is metallurgical industry. Background technique [0002] The role of rare earths in many fields has been recognized by people, but people have not mastered the addition process of non-ferrous metal recycling and smelting, especially in small and medium-sized smelting enterprises. It is difficult to add rare earths; because the amount of rare earths added is very small, the added amount is not easy to control Rare earth is easy to boil, easy to be dangerous and other inconveniences, the successful development of rare earth aluminum alloy modifier greatly simplifies this process. Contents of the invention [0003] The purpose of the present invention is to overcome the shortcomings of the prior ...

Claims

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Application Information

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IPC IPC(8): C22C1/02C22C21/04
Inventor 李海栓胡义庭李笙铭
Owner 长葛市天润有色金属研究所