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Thermoplastic forming methods for amorphous alloy

An amorphous alloy, amorphous technology, applied in the field of thermoplastic forming of amorphous alloy, can solve the problems of high product cost, loss, etc.

Inactive Publication Date: 2012-12-19
CRUCIBLE INTPROP LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there is little literature on how to utilize and / or form these alloy systems into structural parts, such as in consumer electronic devices
In particular, when it comes to high aspect ratio products (such as thin plates) or three-dimensional hollow products, existing forming or processing methods often lead to high product costs
Furthermore, existing forming methods can often suffer from the disadvantage of producing products that lose many of the desired mechanical properties as observed in amorphous alloys

Method used

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  • Thermoplastic forming methods for amorphous alloy
  • Thermoplastic forming methods for amorphous alloy
  • Thermoplastic forming methods for amorphous alloy

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Embodiment Construction

[0016] One embodiment herein is directed to a method of forming a molded article, sheet, housing, high aspect ratio part, or hollow article comprising: providing an amorphous State alloy feedstock, where the difference between Tg and Tx determines the subcooled temperature region (ΔT); heat the first fluid and mold to the molding temperature and heat the second fluid to a temperature below the molding temperature; use the first Fluid molding stock; replacing the first fluid with a second fluid; and removing the second fluid.

[0017] Another embodiment relates to a method of forming a molded article, sheet, shell, high aspect ratio part, or hollow article comprising: providing an amorphous alloy having a glass transition temperature (Tg) and a crystallization temperature (Tx) raw material, where the difference between Tg and Tx determines the subcooled temperature zone (ΔT); heat the first fluid to molding temperature; heat the second fluid and mold to a temperature below the ...

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Abstract

Provided herein include methods of molding a parison comprising an amorphous alloy and or an amorphous alloy composites, where the molding takes place within the supercooled liquid region or around the glass transition temperature of the amorphous alloy. In one embodiment, the fopning can be carried out with two fluids at different temperatures. The molded article can have a very high aspect ratio or a three-dimensional hollow shape with a desirable surface finish.

Description

[0001] related application [0002] This application claims priority to US Provisional Application Serial No. 61 / 338,318, filed February 17, 2010, which is hereby incorporated by reference in its entirety. [0003] All publications, patents, and patent applications cited in this specification are hereby incorporated by reference in their entirety. Background technique [0004] Bulk solidifying amorphous alloys have been fabricated in a variety of metal systems. They are usually prepared by quenching from above melting temperature to ambient temperature. Usually high cooling rates are required, e.g. about 10 5 °C / sec to achieve an amorphous structure. The lowest rate that can be used to cool a bulk solidifying alloy to avoid crystallization and thereby achieve and maintain an amorphous structure during cooling is called the "critical cooling rate" for that alloy. To achieve a cooling rate higher than the critical cooling rate, heat must be extracted from the sample. Conseq...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C1/00C22C45/00B29C49/66
CPCC22C1/002C22C45/00C22C1/11B29C49/66B22D27/04
Inventor Q·T·帕姆T·A·瓦纽克
Owner CRUCIBLE INTPROP LLC