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Pumped vacuum system and die casting method of magnesium alloy vacuum high-pressure die casting mould

A vacuum system and die-casting mold technology, which is applied to the vacuum system of the mold and its die-casting field, can solve problems such as ineffective design of the vacuum system and influence on the method of die-casting products, and achieve improved metal utilization, good economy, and smooth surface Effect

Inactive Publication Date: 2010-12-22
HARBIN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the design of the existing mold vacuum system is not effective, which directly affects the method of die-casting products.

Method used

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  • Pumped vacuum system and die casting method of magnesium alloy vacuum high-pressure die casting mould
  • Pumped vacuum system and die casting method of magnesium alloy vacuum high-pressure die casting mould

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Magnesium alloy vacuum high-pressure die-casting mold vacuum system, which consists of: a gating system, the gating system is connected to the labyrinth system 2 through the exhaust pipe 1, the gating system includes a pressure chamber 3, and the pressure chamber is connected to the direct pouring system. Road 4, the sprue is connected to the runner 5, the runner is connected to the ingate 6, the ingate is connected to the exhaust pipe, and the ingate includes an overflow System 7, the labyrinth system is connected with vacuum valve 8.

[0026] In the vacuum pumping system for magnesium alloy vacuum high-pressure die-casting molds, the pressure chamber is cylindrical, with an inner diameter of 50mm and a thickness of 10mm.

[0027] In the magnesium alloy vacuum high-pressure die-casting mold vacuum system, the sprue is an equal-width channel with a width of 25-50mm and a thickness of 10mm.

[0028] In the magnesium alloy vacuum high pressure die casting mold vacuum sys...

Embodiment 2

[0032] Magnesium alloy vacuum high-pressure die-casting mold vacuum system, which consists of: a gating system, the gating system is connected to the labyrinth system 2 through the exhaust pipe 1, the gating system includes a pressure chamber 3, and the pressure chamber is connected to the direct pouring system. Road 4, the sprue is connected to the runner 5, the runner is connected to the ingate 6, the ingate is connected to the exhaust pipe, and the ingate includes an overflow System 7, the labyrinth system is connected with vacuum valve 8.

[0033] In the vacuum pumping system for magnesium alloy vacuum high-pressure die-casting molds, the pressure chamber is cylindrical, with an inner diameter of 100 mm and a thickness of 10 mm.

[0034] In the magnesium alloy vacuum high-pressure die-casting mold vacuum system, the sprue is an equal-width channel with a width of 50mm and a thickness of 1.6mm.

[0035] In the magnesium alloy vacuum high-pressure die-casting mold vacuuming...

Embodiment 3

[0039] Magnesium alloy vacuum high-pressure die-casting mold vacuum system, which consists of: a gating system, the gating system is connected to the labyrinth system 2 through the exhaust pipe 1, the gating system includes a pressure chamber 3, and the pressure chamber is connected to the direct pouring system. Road 4, the sprue is connected to the runner 5, the runner is connected to the ingate 6, the ingate is connected to the exhaust pipe, and the ingate includes an overflow System 7, the labyrinth system is connected with vacuum valve 8.

[0040] In the magnesium alloy vacuum high-pressure die-casting mold vacuum system, the pressure chamber is cylindrical, with an inner diameter of 60mm or 70mm or 80mm or 90mm, and a thickness of 10mm.

[0041] In the magnesium alloy vacuum high-pressure die-casting mold vacuum system, the sprue is rectangular, its inner diameter is 30mm or 35mm or 40mm, and its thickness is 9mm or 8mm or 7mm or 6mm or 2mm.

[0042] In the vacuum pumpin...

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Abstract

The invention provides a pumped vacuum system and a die casting method of a magnesium alloy vacuum high-pressure die casting mould. Castings are better produced under vacuum state in order to have higher quality and meet the requirement of high cutting-edge technology occasions, therefore the mould has to undergo vacuum high-pressure die casting in order to solve the problem of flammability of magnesium alloys and overcome the pore defect and improve the quality of the castings and the productivity of the finished product. The pumped vacuum system comprises a gating system, wherein the gating system is connected with a labyrinth system (2) by an exhaust duct (1) and comprises a pressure chamber (3); the pressure chamber is connected with a sprue (4) of the labyrinth system; the sprue is connected with a runner (5); the runner is connected with inner casting gates (6) which are connected with the exhaust duct; the inner casting gates comprise overflow systems (7); and the labyrinth system is connected with vacuum valves (8). The invention is used for magnesium alloy die casting.

Description

Technical field: [0001] The invention relates to a vacuum pumping system for a mold and a die-casting method thereof, in particular to a vacuum pumping system for a magnesium alloy vacuum high-pressure die-casting die and a die-casting method thereof. Background technique: [0002] For enterprises and laboratories researching magnesium alloy die-casting production, whether to ensure the safety of magnesium alloy die-casting and the high quality of formed products is one of the main tasks of researching magnesium alloy die-casting, and vacuum die-casting is developed on the basis of traditional ordinary die-casting. A more superior die-casting method, the magnesium alloy vacuum high pressure die-casting mold is the key factor affecting the performance of the cast magnesium alloy, and the correct design of the vacuum device is related to the quality of the casting. [0003] At present, there is no specific national standard about the independent design of magnesium alloy high-...

Claims

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Application Information

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IPC IPC(8): B22D17/14B22D17/20
Inventor 于彦东张晓晨
Owner HARBIN UNIV OF SCI & TECH
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