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Process and Method For Producing Foamable Metals

Inactive Publication Date: 2013-11-07
PENNA METALS INT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention provides an improved process for producing foamable and foamed metal articles, which involves a mixture of metal powder and a gas-producing blowing agent. This process results in foamable products with improved industrial properties, such as reduced density and improved mechanical properties, compared to prior art methods. The invention also provides a process of producing foemed metal articles by subjecting the compacted mixture to conditions effective to foam it. The foamable metal articles produced by this process have these improved properties as well. Overall, the invention enhances the production of foamable and fooned metal articles with improved industrial properties.

Problems solved by technology

Current methods of closed-cell foamed metal article production, however, typically result in cells that are irregular and coarse, often with the “windows” of the gas bubbles appearing to be fissured.
In addition, prior art methods usually result in a substantial amount of unfoamed metal material at the base of the foamed metal article.

Method used

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  • Process and Method For Producing Foamable Metals
  • Process and Method For Producing Foamable Metals
  • Process and Method For Producing Foamable Metals

Examples

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Embodiment Construction

[0013]FIG. 1 shows an exemplary embodiment of a process for producing foamable metal articles and foamed metal articles in accordance with the present invention. At least one metal powder 10 is mixed with a gas-producing blowing agent 12 containing some combination of silicon powder and / or talc powder (Si, [H2Mg3(SiO3)4] or [Mg3Si4O10(OH)2]). While other gas-producing blowing agents (e.g., titanium hydride, carbonates, and hydrates) have been used for producing foamable metal articles, the use of silicon powder or talc powder, or a combination of both, is not known in the art.

[0014]The combination of the metal powder 10 and the gas-producing blowing agent 12 is blended 20 and compacted 30 to form compressed foamable metal articles 40 useful for producing foamed metal articles 70. The foamable metal articles then may be exposed to elevated temperature 50, and / or elevated or reduced pressure, effective to cause the foamable metal article to foam. The material is then cooled 60, if nec...

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Abstract

A process for producing foamable metal articles and foamed metal articles and materials. A mixture of foamable material is produced by blending at least one metal powder and one gas-producing blowing agent, then compacting the mixture into a solid form of various cross-sections and configurations. The gas-producing blowing agent comprises silicon powder and talc powder.

Description

TECHNICAL FIELD[0001]The present invention relates to a process for producing foamable materials. More particularly, the present invention relates to mixtures of foamable metal materials produced from at least one metal powder and one gas-producing blowing agent.BACKGROUND OF THE INVENTION[0002]The production of foamed metal articles is known in the art. There are a variety of patents and publications concerning the production of foamed metal articles, devices and processes for producing said articles, and the metal / foaming agent mixtures used therein. The number of applications for foamed metals is high, including, but not limited to, stiffening of hollow structures, sound and vibration dampening, inhibition of energy flows, and creation of decorative elements.[0003]Current methods of closed-cell foamed metal article production, however, typically result in cells that are irregular and coarse, often with the “windows” of the gas bubbles appearing to be fissured. In addition, prior ...

Claims

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Application Information

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IPC IPC(8): B22F5/10
CPCB22F5/10B22F3/1125C22C21/00A61K47/02A61M15/00
Inventor MAVRINAC, PHILIP
Owner PENNA METALS INT
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