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A Short Process Forming Method for Recycling Waste Aluminum Shavings

A short process and aluminum chip technology, applied in the direction of improving process efficiency, can solve the problems of serious oxidation, large loss, low recovery efficiency, etc., achieve excellent organizational properties, overcome high burning loss, and save aluminum energy.

Active Publication Date: 2017-10-20
DELTA ALUMINUM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the remelting process of aluminum waste, the oxidation is serious, the loss is large, and the recovery efficiency is low

Method used

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  • A Short Process Forming Method for Recycling Waste Aluminum Shavings

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Adopt this method to prepare A356 aluminum alloy wire rod step as follows:

[0028] The first step is to put the waste aluminum chips into the crusher to crush the large pieces of aluminum chips, and at the same time throw out the heavier sundries in the aluminum chips;

[0029] The second step is to put the waste aluminum chips crushed by the crusher into the drying and impurity removal device for drying and removal of impurities such as oil and water on the surface of the waste aluminum chips. The drying and impurity removal device is an inclined rotary furnace. The inclination angle is 30°, the rotation speed is 5-6r / min, the drying and impurity removal temperature is 100-200°C, and the drying and impurity removal time is 20-50min;

[0030] The third step is to put the aluminum chips after drying and removing impurities into the high-pressure rotary compression-expansion extrusion cylinder, and heat the extrusion cylinder at a heating temperature of 300-400 °C and a ...

Embodiment 2

[0034] Adopt the method of the present invention to prepare A356 aluminum alloy tubing step as follows:

[0035] The first step is to put the waste aluminum chips into the crusher to crush the large pieces of aluminum chips, and at the same time throw out the heavier debris in the waste aluminum chips;

[0036] The second step is to put the waste aluminum chips crushed by the crusher into the drying and impurity removal device for drying and removal of impurities, mainly to remove oil and water and other impurities on the surface of the waste aluminum chips; the drying and impurity removal device is an inclined rotary Furnace with an inclination angle of 40°, a rotation speed of 8-10r / min, a drying and impurity removal temperature of 100-200°C, and a drying and impurity removal time of 20-50min;

[0037] The third step is to put the aluminum chips after drying and removing impurities into the high-pressure rotary compression-expansion extrusion machine, and heat the extrusion ...

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Abstract

The invention provides a waste aluminum skimming regeneration short-process forming method. The method comprises the steps that firstly, waste aluminum skimmings are put into a smasher to be smashed, and heavy impurities in the waste aluminum skimmings are thrown out; then, the waste aluminum skimmings smashed by the smasher are dried and subjected to impurity removal, and oil dirt, water and other impurities on the surfaces of the aluminum skimmings are removed; the dried waste aluminum skimmings subjected to impurity removal are put into a high-pressure rotate-compressing and expand-extruding barrel, and the extruding barrel is heated; then, a rotating press is started, and rotate-compressing and expanding large-plasticity extruding forming is carried out on the waste aluminum skimmngs in the extruding barrel; finally, a product is cooled. By means of the method, the waste aluminum skimmings are directly processed into the aluminum alloy product, the problems such as high aluminum skimming burning loss, low efficiency and serious pollution in the traditional waste aluminum skimming recovery process are solved, smelting, ingot casting and other links in the traditional technology are omitted, and the advantages of being short in process and environmentally friendly, saving energy and the like are achieved.

Description

technical field [0001] The invention belongs to the technical field of recycling and forming processing of waste aluminum chips, in particular relates to a method for recycling and reprocessing waste aluminum chips by adopting a large plastic deformation method, and belongs to a method for recycling and reshaping nonferrous metals and their alloy wastes, in particular to a kind of waste aluminum Chip recycling short-flow forming method. technical background [0002] Aluminum alloys generate a lot of waste during processing. In recent years, the world's wheel hub production center has shifted to China, and domestic auto wheel hub production has grown rapidly. In 2014, the domestic output of automobile wheels was about 208 million pieces. Based on the 10Kg / piece of aluminum alloy wheels for cars and a machining allowance of 10%, the aluminum shavings produced by the machining of aluminum alloy wheels alone reached 208,000 tons in 2014. In the first half of 2015, the output o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22B7/00C22B21/00
CPCC22B7/005C22B21/0007Y02P10/20
Inventor 赵占勇张文达白培康党惊知任霁萍
Owner DELTA ALUMINUM IND
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