Method for supplying liquid to magnesium-alloy press caster and liquid supplier

A technology for die-casting machines and magnesium alloys, which is applied in the field of liquid supply and liquid supply devices for die-casting machines for magnesium alloy die-casting. The effect of reducing oxidation

Inactive Publication Date: 2007-11-21
NANJING YUNHAI SPECIAL METALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention solves the problem that the existing liquid supply method of the die-casting machine is easily oxidized when the liquid is supplied, and the impact is large and the air is easily involved, and it provides a die-casting with stable liquid flow, no impact, less oxidation, and basically no gas involved Machine liquid supply method

Method used

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  • Method for supplying liquid to magnesium-alloy press caster and liquid supplier

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Experimental program
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Embodiment Construction

[0010] In Fig. 1, the magnesium alloy melting and holding furnace 1 ensures that the magnesium alloy liquid meets the temperature requirements of the die-casting process, and the crucible therein is used to melt the magnesium alloy. The quantitative pump housing 6 of the quantitative pump 7 is below the magnesium alloy liquid level 2 in the crucible. There is a bottom valve 4 in the quantitative pump housing 6 that communicates with the inlet of the infusion tube 14. There is a quantitative bottom valve 5 below the quantitative pump housing 6. The top of the quantitative pump casing 6 communicates with the inert gas inlet and exhaust pipe 3 protruding from the liquid surface. The bottom valve 4 and the quantitative bottom valve 5 are check valves. The infusion tube 14 is basically wrapped by the electric heating tube 9, and the electric heating wire 10 connected with the resistance wire heating device 8 is arranged in the electric heating tube 9. The infusion tube 14 communic...

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Abstract

The invention is concerned with the liquid supply method of the pressure die casting machine for magnesium alloy die-casting, it is: the magnesium alloy liquid, which the liquid surface is lower than the outputting opening of the proportioning pump in the melting furnace, passes the outputting opening to enter the pressure chamber from the bottom pressure chamber of the pressure die casting machine by the proportioning pump. The invention solves the problem of the existing method that is easy to be oxidation and mix air, provides the method that non-impact, less oxidation, non-air mix, to improve the quality of the magnesium alloy die cast, reduce the cost.

Description

technical field [0001] The invention relates to a liquid supply method and a liquid supply device in the casting process of nonferrous metals, in particular to a method and a device for supplying liquid to a pressure chamber of a die casting machine during die casting of a magnesium alloy. Background technique [0002] At present, with the wide application of magnesium alloys in various fields such as automobiles, 3C products, and instruments, higher requirements are put forward for the quality of magnesium alloy die castings. Magnesium alloy die-casting process is different from aluminum alloy die-casting. It has higher requirements for the performance of die-casting equipment, mold design and manufacturing, and the use of release agents. Burning loss and formation of inclusions seriously affect the casting quality. Avoiding oxidation and burning of magnesium alloy high-temperature melt during transportation and pouring is an important link in the production of magnesium a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D17/30
Inventor 梅小明张国进佟龙福雷锋
Owner NANJING YUNHAI SPECIAL METALS CO LTD
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