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Method for casting magnesium and magnesium alloy ingot

A pouring method and technology for magnesium alloys, applied in the field of pouring molten metal, can solve problems affecting product quality, etc., and achieve the effects of reducing the chance of contact with air and burning, smooth pouring process, and improving quality

Inactive Publication Date: 2006-02-08
宁夏惠冶镁业集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, due to the very active chemical properties of magnesium and magnesium alloys, it is very easy to react with oxygen to produce oxidation and combustion. During the casting process of magnesium and magnesium alloys, if conventional casting methods are used, a large amount of oxides will be produced, which directly affects to product quality

Method used

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  • Method for casting magnesium and magnesium alloy ingot
  • Method for casting magnesium and magnesium alloy ingot

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Embodiment Construction

[0013] Such as figure 1 As shown, the present invention puts the funnel 2 into the mold 3 during the casting process, the molten magnesium or magnesium alloy liquid is poured into the funnel 2, and the molten magnesium or magnesium alloy enters the mold 3 through the funnel 2. During the pouring process, the lowermost end of the outlet pipe of the funnel 2 should be slightly higher than the inner bottom surface of the mold 3, and the funnel 2 is taken out after the pouring is completed. Casting in this way can make the pouring process relatively stable. As the pouring proceeds, the liquid level in the mold 3 gradually rises, and the newly poured molten magnesium or magnesium alloy directly enters the mold 3 from below the liquid level, and is not easy to get in contact with the air. direct contact, thus protecting most of the magnesium from being oxidized.

[0014] During the pouring process, the funnel 2 can be placed on the support 1, and the support 1 can be placed on the ...

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Abstract

A method for casing Mg and Mg-alloy ingot includes arranging a hopper in mould, pouring the molten Mg or Mg-alloy in mould via said hopper, and taking the hopper out of the mould. Its advantages are less chance that molten metal is contact with air, no splashing and high quality of product.

Description

technical field [0001] The invention relates to a method for casting molten metal, in particular to a method for casting magnesium and magnesium alloy ingots. Background technique [0002] Magnesium and its alloys have significant advantages such as low specific gravity, high specific strength and specific stiffness, and low raw material prices. In the past two decades, the research and application of magnesium alloys have attracted increasing attention from the material science and industry circles. With the enhancement of people's awareness of environmental protection and the requirement of energy conservation, the development trend of the automobile industry is to reduce the weight of automobiles. In the case of ensuring the original functional requirements of automobiles, light alloy (aluminum alloy and magnesium alloy) parts should be used as much as possible. Magnesium alloys are increasingly becoming the preferred alternative material for steel parts in place of steel...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22D21/04B22D7/00
Inventor 杨利忠田学忠张辉刘新荣孙建东王万林孙宝林
Owner 宁夏惠冶镁业集团有限公司