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Feeding method of aluminum scrap and edge cutting material

A feeding method and trimming technology, which is applied in the field of aluminum alloy manufacturing, can solve the problems of ingot performance hazards, product strength, plasticity, impact toughness and fracture toughness reduction, etc., so as to reduce the output of aluminum slag and reduce metal burning loss , the effect of reducing emissions

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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Porosity and porosity are very harmful to the performance of the ingot, and will significantly reduce the strength, plasticity, impact toughness and fracture toughness of the product

Method used

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  • Feeding method of aluminum scrap and edge cutting material
  • Feeding method of aluminum scrap and edge cutting material
  • Feeding method of aluminum scrap and edge cutting material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Embodiment 1 A kind of feeding method of aluminum shavings and trimmings

[0023] Include the following steps:

[0024] (1) When batching, each furnace is equipped with a bucket of aluminum chips and trimmings (8~10t), which are placed separately in front of the furnace. Put other prepared materials into the smelting furnace, ignite and heat up to melt.

[0025] (2) Wait until the molten aluminum is completely melted, and the temperature of the molten aluminum reaches 745°C.

[0026] (3) Remove the furnace cover, open a small gap in the barrel, and bake the aluminum scraps and trimmings at the bottom for 5 minutes by the hot air in the furnace to prevent the possibility of moisture.

[0027] (4) Slowly add a bucket of aluminum chips and trimmings into the furnace. Turn on the stirrer to stir, and use the heat of fusion of aluminum water and the latent heat of the furnace to melt the aluminum chips and trimmings.

[0028] Adopt the charging method of this embodiment ...

Embodiment 2

[0035] Embodiment 2 A kind of feeding method of aluminum shavings and trimmings

[0036] Include the following steps:

[0037] (1) When batching, each furnace is equipped with a bucket of aluminum chips and trimmings (8~10t), which are placed separately in front of the furnace. Put other prepared materials into the smelting furnace, ignite and heat up to melt.

[0038] (2) Wait until the molten aluminum is completely melted, and the temperature of the molten aluminum reaches 755°C.

[0039] (3) Remove the furnace cover, open a small gap in the barrel, and bake the aluminum chips and trimmings at the bottom for 3 minutes by the hot air in the furnace to prevent the possibility of moisture.

[0040] (4) Slowly add a bucket of aluminum chips and trimmings into the furnace. Turn on the stirrer to stir, and use the heat of fusion of aluminum water and the latent heat of the furnace to melt the aluminum chips and trimmings.

[0041] The feeding method of this embodiment is used ...

Embodiment 3

[0048] Embodiment 3 A kind of feeding method of aluminum shavings and trimmings

[0049] Include the following steps:

[0050] (1) When batching, each furnace is equipped with a bucket of aluminum chips and trimmings (8~10t), which are placed separately in front of the furnace. Put other prepared materials into the smelting furnace, ignite and heat up to melt.

[0051] (2) Wait until the molten aluminum is completely melted, and the temperature of the molten aluminum reaches 750°C.

[0052] (3) Remove the furnace cover, open a small gap in the barrel, and bake the aluminum scraps and trimmings at the bottom for 5 minutes by the hot air in the furnace to prevent the possibility of moisture.

[0053] (4) Slowly add a bucket of aluminum chips and trimmings into the furnace. Turn on the stirrer to stir, and use the heat of fusion of aluminum water and the latent heat of the furnace to melt the aluminum chips and trimmings.

[0054] The feeding method of this embodiment is used...

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Abstract

The invention discloses a feeding method of aluminum scrap and an edge cutting material. When temperature of molten aluminum reaches 745-755 DEG C, a smelting furnace cover is removed, a seam is arranged on a material barrel containing the aluminum scrap and the edge cutting material, braking is performed for 3-5 minutes, and the aluminum scrap and the edge cutting material are added in a smelting furnace while being stirred. The feeding method changes a traditional aluminum scrap and edge cutting material feeding mode, provides that the aluminum scrap and the edge cutting material are added when the temperature of the molten aluminum reaches 745-755 DEG C, utilizes melting heat of the molten aluminum and furnace latent heat to melt the aluminum scrap and the edge cutting material, avoids heating and melting caused by the fact that flame is sprayed on the surfaces of the aluminum scrap and the edge cutting material directly, greatly reduces metal loss, improves rate of finished products, reduces aluminum slag output, lowers emission load of waste smoke, reduces consumption of natural gas, lowers cost, shortens feeding time, accelerates melting rate, shortens melting time, reduces hydrogen absorbed the molten aluminum, and improves product quality.

Description

technical field [0001] The invention relates to the field of aluminum alloy manufacturing, in particular to a method for feeding aluminum shavings and trimmings. Background technique [0002] In the production of aluminum alloy casting, tertiary wastes such as aluminum shavings and trimmings account for a large proportion of the waste, and the burning loss of the tertiary wastes is particularly large, and a large amount of aluminum slag and waste smoke will be produced during the combustion process. Reducing the burning loss of aluminum shavings and trimmings in aluminum alloy waste, especially tertiary waste, has a great effect on energy saving, emission reduction, cost reduction and benefit increase. [0003] In the prior art, to process tertiary wastes such as aluminum chips, one method is to add an electromagnetic induction furnace, which is specially used to melt tertiary wastes such as aluminum chips and trimmings. Melting aluminum chips and trimmings into aluminum wa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B7/00C22C21/00C22C1/02
CPCY02P10/20
Inventor 周雷波罗博基韩军锋靳明祥安登祥
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