A method of and a device for producing a liquid-solid metal composition

A metal composition and metal technology, applied in the field of a method device, can solve problems such as slow cost and the like

Active Publication Date: 2008-01-02
FUJIAN RHEOMET LIGHT METAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This makes these prior art methods relatively slow and costly

Method used

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  • A method of and a device for producing a liquid-solid metal composition
  • A method of and a device for producing a liquid-solid metal composition

Examples

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example

[0040] The following examples will illustrate the invention and are not intended to limit the invention.

example 1

[0042] Al-7%Si Alloy Slurries Produced by Mixing Melts with Solids of Different Composition

[0043] The following is a detailed description of a production method of an Al—Si alloy paste containing about 7% by weight of Si having a degenerated dendrite structure with reference to FIG. 2 .

[0044] 2013 grams of Al-Si alloy feedstock containing approximately 6.5% Si by weight was melted in a clay-graphite crucible in an electric resistance furnace. The crucible has a height of approximately 165 mm, an inner diameter of 110 mm and a wall thickness of 15 mm. When the Al-6.5%Si alloy was completely melted and reached 630°C, ie about 10°C above its liquidus temperature, the power to the furnace was shut off. 197 grams of solid Al-Si alloy containing approximately 12% Si by weight was attached to a mechanical stainless steel stirrer. Al-12% Si attached to a stirrer, both initially at room temperature, was immersed in the melt. Stirring was continued for 37 seconds. The Al-12%Si...

example 2

[0046] Mg-9%Al alloy slurry produced by mixing a melt with a solid of the same composition

[0047] The following is a detailed description of a production method of a Mg—Al alloy slurry containing 9% by weight Al having a degenerated dendrite structure with reference to FIG. 3 .

[0048] 101 grams of Mg-Al alloy feedstock containing approximately 9% by weight Al was melted in a clay-graphite crucible in an electric resistance furnace. The crucible has a height of approximately 155 mm, an inner diameter of 30 mm and a wall thickness of 1.5 mm. When the Mg-9%Al alloy was completely melted and reached 605°C, ie about 10°C above its liquidus temperature, the power to the furnace was shut off. A total of 15 grams of the room temperature solid Al-Si alloy containing 9% by weight Al was added in three separate lumps with manual stirring by a thin steel rod between each addition. The total stirring time is approximately 2 minutes. The final temperature of the Mg-9%Al alloy after s...

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Abstract

A method of producing a liquid-solid metal composition (8), comprising the steps of charging a vessel (2) with a molten metal or alloy (3), charging the vessel (2) with a solid metal or alloy (6), stirring the molten metal or alloy (3) upon cooling thereof. The amount of solid metal or alloy (6) is chosen such that a substantial amount of solid particles (7) will be formed in the melt (3) due to the enthalpy exchange between the solid metal or alloy (6) and the molten metal or alloy (3), and at least a part of the added solid metal or alloy (6) is melted by the heat transferred to it by the molten metal or alloy (3).

Description

technical field [0001] The present invention relates to a method of producing a liquid-solid metal composition (or mixture) comprising the steps of filling a vessel with molten metal or alloy, filling the vessel with solid metal or alloy and stirring the molten metal or alloy as it cools . [0002] The invention also relates to a device for carrying out the method of the invention. [0003] The composition of the molten metal or alloy may consist of a wide variety of metals or alloys, however in particular metals or alloys which tend to form dendritic or faceted growth morphology when solidified from the liquid state without agitation. [0004] It should be appreciated that the molten metal or alloy need not be in a liquid state when filled into the container. It can also be charged in solid form and subsequently melted to obtain its liquid or mostly liquid state. If so, the solid metal or alloy is charged after the molten phase is produced. [0005] It should also be appr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C1/02B22D17/00B22D27/20C22CC22C1/00
CPCC22C1/005C22C1/12C22C1/02B22D27/20B22D17/00B22D1/00B22D25/06C22C1/1026
Inventor M·韦森曹海平
Owner FUJIAN RHEOMET LIGHT METAL CO LTD
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