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Novel secondary aluminum modifying refiner and method for smelting secondary aluminum by utilizing refiner

A technology of recycled aluminum and refiner, applied in the direction of improving process efficiency, etc., can solve the problems of reducing the value of alloy elements, not yet discovering public patent documents, and increasing the cost of recycled aluminum, so as to reduce the cost of recycling, improve the quality of recycled products and Performance, effect of grain refinement

Active Publication Date: 2013-06-26
天津新立中合金集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method tends to increase the cost of secondary aluminum and reduce the value of alloying elements
[0004] Through searching, no published patent documents related to this patent application have been found

Method used

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  • Novel secondary aluminum modifying refiner and method for smelting secondary aluminum by utilizing refiner
  • Novel secondary aluminum modifying refiner and method for smelting secondary aluminum by utilizing refiner
  • Novel secondary aluminum modifying refiner and method for smelting secondary aluminum by utilizing refiner

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] A new type of secondary aluminum modification refiner and a method for smelting secondary aluminum using the refiner are as follows:

[0062] 1. Prepare Al-Ti-B-Ce-La new type metamorphic refiner, the total feed is 1000kg.

[0063] ⑴ Put the weighed industrial pure aluminum, K 2 TiF 6 , KBF 6 , AlCe10 alloy and AlLa10 alloy are placed in a constant temperature preheated drying oven at 250°C for 2.5 hours.

[0064] (2) Add 542kg of industrial pure aluminum into the 1 ton experimental furnace, set the furnace temperature to 800℃, and ignite and increase the temperature.

[0065] ⑶When the industrial pure aluminum is heated to 800℃ after melting, add 192kg K 2 TiF6, 116kg KBF 6 , Stir fully and keep warm for about one hour to ensure TiAl 3 , TiB 2 The particles are more uniformly dispersed in the melt.

[0066] ⑷Add 75kg AlCe10 alloy and 75kg AlLa10 alloy, stir at regular intervals to make the rare earth elements evenly distributed in the melt, let it stand for 30 minutes, when the ...

Embodiment 2

[0078] A new type of secondary aluminum modification refiner and a method for smelting secondary aluminum using the refiner are as follows:

[0079] 1. Preparation of Al-Ti-B-Ce-La new type metamorphic refiner, total feed 800kg.

[0080] ⑴ Put the weighed industrial pure aluminum, K 2 TiF 6 , KBF 6 , AlCe10 alloy and AlLa10 alloy are placed in a constant temperature preheated drying oven at 250°C for 2.5 hours.

[0081] ⑵ Add 433kg of industrial pure aluminum into the 1 ton experimental furnace, set the furnace temperature to 800℃, and ignite and raise the temperature.

[0082] ⑶When the industrial pure aluminum is melted and heated to 800℃, add 154kgK 2 TiF6, 93kgKBF 6 , Stir fully and keep warm for about one hour to ensure TiAl 3 , TiB 2 The particles are more uniformly dispersed in the melt.

[0083] ⑷Add 60kg AlCe10 alloy and 60kg AlLa10 alloy, stir at regular intervals to make the rare earth elements evenly distributed in the melt, and let it stand for 30 minutes. When the temperat...

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Abstract

The invention relates to a novel secondary aluminum modifying refiner and a method for smelting secondary aluminum by utilizing the refiner. The method for producing the secondary alumium by utilizing the refiner specifically comprises the following steps: putting weighed industrial pure aluminum, industrial silicon and waste aluminum into a constant-temperature preheating drying furnace of 250 DEG C to dry for 2-3 hours; conveying dried raw materials into a melting furnace, and removing gas and slag after complete melting; adding 0.3wt%-0.5wt% of novel secondary aluminum modifying refiner when the temperature reaches 730-750 DEG C, fully stirring and standing, detecting and regulating the components; and (5) casting ingots when the temperature is 680-720 DEG C to prepare the secondary aluminum. The novel modifying refiner provided by the invention not only can effectively control the content of impurity elements but also can fully utilize interaction effect between the elements to realize the benefits of the impurity elements, thereby greatly reducing the relegation and regeneration cost and improving the quality and performance of the regenerated products.

Description

Technical field [0001] The invention belongs to the technical field of preparation of non-ferrous metal alloy materials, and relates to an on-line processing technology that effectively controls impurity elements in the smelting process of waste aluminum, and can make full use of the interaction between the elements to realize the benefit of impurity elements, especially a A novel secondary aluminum modification refiner and a method for smelting secondary aluminum by using the refiner. Background technique [0002] The total consumption of aluminum in the world is about 35 million tons (34972kt), of which the output of recycled aluminum is about 10 million tons (10500kt), accounting for about 30% of the total consumption. Recycling of scrap aluminum has a very important comprehensive strategic significance. According to the industry development plan, by 2020, the proportion of my country's secondary aluminum output in the total aluminum output will increase from the current 21% ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C1/06C22B7/00C22C21/00B22D27/20
CPCY02P10/20
Inventor 王如分黄海军李志琴田红杰翟盼盼霍会娟
Owner 天津新立中合金集团有限公司
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