Recycle utilization process of magnesium alloy compression casting waste material

A magnesium alloy and waste technology is applied in the field of recycling process of magnesium alloy die-casting waste to achieve the effects of reducing costs, short steps and saving energy

Inactive Publication Date: 2008-10-22
JIANGSU FAVOUR AUTOMOTIVE NEW STUFF SCI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current situation is that manufacturers of magnesium alloy die-casting products can only supply magnesium alloy die-casting waste to smelters by following the process shown in Figure 1 or Figure 2

Method used

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  • Recycle utilization process of magnesium alloy compression casting waste material
  • Recycle utilization process of magnesium alloy compression casting waste material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Please combine Figure 3 and Figure 4.

[0026] A) Utilize the method recommended by the present invention to separate the castings obtained by the die-casting of the magnesium alloy product die-casting machine, specifically to separate the products that have just been die-casted at a temperature above 300 ° C from the sprue and the slag bag. The tools used are hydraulic presses and trimming dies. The hydraulic presses are YH series hydraulic presses produced by Hefei Forging Machine Tool Factory in Hefei City, Anhui Province, China, and the temperature of the separated sprue and slag bag is guaranteed to be above 100°C, so as to obtain magnesium alloy. Scrap (shown in Figure 4), it goes without saying that the magnesium alloy scrap 1 obtained also includes the unqualified casting products that have just been die-casted;

[0027] B) Magnesium alloy scrap 1 is continuously transported to the melting chamber 21 of the recovery furnace 2, which is the melting and refining f...

Embodiment 2

[0030] Only change the melting temperature described in step B) to 690°C, the refining temperature to 716°C, the addition of refining agent 222 to 2.8%, and the holding temperature described in step C) to 676°C, and the rest Same as the description of embodiment 1.

Embodiment 3

[0032] Only change the melting temperature described in step B) to 715°C, the refining temperature to 705°C, the amount of refining agent 222 added to 4.6%, and the holding temperature described in step C) to 685°C, and the rest Same as the description of embodiment 1.

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Abstract

The invention discloses a circulating utilizing technique of magnesium alloy cast slag, which comprises the following steps: separating cast piece of magnesium alloy through squeeze molding machine on the spot; obtaining waste material of magnesium alloy; transmitting magnesium alloy waste into fusing chamber of recycling device and refining chamber; obtaining magnesium alloy liquid; insulating; casting; stewing refined magnesium liquid under high temperature; transmitting the liquid into insulating chamber of recycling device; regenerating raw material.

Description

technical field [0001] The invention relates to a process for recycling magnesium alloy die-casting waste, which is used to recycle and process magnesium alloy waste such as runners, slag bags, defective parts and even scrapped parts in time to be reused at the magnesium alloy die-casting site magnesium alloy raw materials. Background technique [0002] Magnesium alloy has low density and light weight (1.8g / cm 3 ), high specific strength and specific stiffness, ideal shock absorption, excellent electromagnetic shielding function, processability and recyclability and other good physical properties, it is widely used in automobiles and 3C products, such as using its shock absorption Ideal features Die-casting processing of automobile gear shifter housing, the automobile gear shifter housing made of magnesium alloy has good road conditions adaptability, even in the case of severe bumps, it is unlikely to automatically jump gears, which is very safe favorable. Therefore, it h...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C1/02C22B7/00B22D21/04C22C23/00
CPCY02P10/20
Inventor 李娟李健王震东周家骝
Owner JIANGSU FAVOUR AUTOMOTIVE NEW STUFF SCI TECH
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