Pouring process for extrusion casting

A pouring method and squeeze casting technology, which are applied in the field of squeeze casting and pouring, can solve the problems of difficulty in pouring, difficulty in anti-oxidation protection, and high energy consumption in smelting, shorten the process cycle period, facilitate anti-oxidation protection, and improve process yield. yield effect

Inactive Publication Date: 2004-11-17
CHONGQING UNIV
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AI Technical Summary

Problems solved by technology

Due to the manual pouring at the top of the pressure chamber, the current squeeze casting method has the following disadvantages: 1. It is necessary to use a ladle to take the melt from the crucible and pour it from the top of the pressure chamber, so the pouring is difficult, inconvenient to operate, and labor-intensive. High, and the anti-oxidation protection is difficult; 2. The mold must be clamped and die-casted after the pouring is completed, so the process from pouring to pressurized filling is long, the melt temperature drops greatly, and the quality of the casting is difficult to guarantee; 3. In order to prevent the mold from filling before The quality problem caused by the temperature drop of the melt must increase the pouring temperature of the melt, so the melting energy consumption is high, the alloy composition is burned, and the melt has a large tendency of air absorption and oxidation

Method used

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  • Pouring process for extrusion casting

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Embodiment Construction

[0009] The following is attached with the manual figure 1 And implementation case further illustrates the present invention:

[0010] The implementation case takes the extrusion casting of magnesium alloy wheels as an example, and the process is as follows:

[0011] 1. Clean the mold, apply paint, close the mold, and reset the pressure head;

[0012] 2. Pouring: The magnesium alloy melt is poured into the pressure chamber 7 through the quantitative pouring device 5 and gate slider 6 on the side of the pressure chamber, and then the gate slider 6 quickly slides to the filling position along the Z direction;

[0013] 3. Mold filling, pressure keeping and solidification: the magnesium alloy melt in the pressure chamber 7 quickly enters the cavity under the action of the indenter 9. After the mold filling is completed, the indenter 9 continues to maintain the magnesium alloy melt in the mold. Press until the casting is completely solidified;

[0014] 4. Mold opening and pick-up...

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Abstract

The invention refers to a kind of pressing founding and casting method, which is used to produce colored alloy foundry goods. The realizing method is: the alloy fusant enters the pressure room through batch casting device and casting aperture sliding block, after the casting, the gate sliding block closes the pressure room, the indenter up runs, the alloy fusant is formed, pressure maintained, condensed under pressure. The efficiency is high, the quality is good, and the process reclaiming rate is high.

Description

Technical field: [0001] The invention relates to a squeeze casting pouring method. Background technique: [0002] The current squeeze casting method is characterized by manual pouring at the top of the pressure chamber, and then clamping and injection. The entire production process is divided into eight steps, namely: 1. Open the upper and lower clamping surfaces in turn to clean the cavity and apply paint. ;2. Manually pour the alloy melt from the upper port of the pressure chamber; 3. Clamp the mold; 4. Fill the mold by injection; 5. Keep the pressure and solidify; Discharge head; 8. Open the upper mold and return to eject the casting. Due to the manual pouring at the top of the pressure chamber, the current squeeze casting method has the following disadvantages: 1. It is necessary to use a ladle to take the melt from the crucible and pour it from the top of the pressure chamber, so the pouring is difficult, inconvenient to operate, and labor-intensive. High, and the ant...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D17/12
Inventor 龙思远曹韩学
Owner CHONGQING UNIV
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