Dual Investment Technique for Solid Mold Casting of Reticulated Metal Foams

US2016207100A1 · US · A1

Patent metadata
FieldValue
Publication numberUS-2016207100-A1
Application numberUS-201514600717-A
CountryUS
Kind codeA1
Filing dateJan 20, 2015
Priority dateJan 20, 2015
Publication dateJul 21, 2016
Grant date

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

A method to manufacture reticulated metal foam via a dual investment solid mold, includes pre-investment of a precursor with a diluted pre-investment ceramic plaster then investing the encapsulated precursor with a ceramic plaster.

First claim

Opening claim text (preview).

What is claimed: 1 . A method to manufacture reticulated metal foam via a dual investment solid mold, comprising: pre-investing a precursor with a diluted pre-investment ceramic plaster to encapsulate the precursor; and investing the encapsulated precursor with a ceramic plaster. 2 . The method as recited in claim 1 , wherein the precursor is a reticulated foam. 3 . The method as recited in claim 1 , wherein the precursor is a polyurethane foam. 4 . The method as recited in claim 1 , wherein the precursor is completely encapsulated with the diluted pre-investment ceramic plaster. 5 . The method as recited in claim 1 , further comprising, coating the precursor in a molten wax to increase ligament thickness. 6 . The method as recited in claim 1 , further comprising, coating the precursor in a molten wax to increase ligament thickness to provide an about 90% air to 10% precursor ratio. 7 . The method as recited in claim 1 , wherein the ceramic plaster is more rigid than the diluted pre-investment ceramic plaster. 8 . The method as recited in claim 1 , wherein the diluted pre-investment ceramic plaster is about 55:100 water to powder ratio. 9 . The method as recited in claim 1 , wherein the ceramic plaster is about 28:100 water to powder ratio. 10 . A method to manufacture reticulated metal foam via a dual investment solid mold, comprising: coating a precursor in a molten wax to increase ligament thickness; pre-investing the waxed precursor with a diluted pre-investment ceramic plaster to encapsulate the precursor; and investing the encapsulated precursor with a ceramic plaster. 11 . The method as recited in claim 10 , wherein the precursor is a reticulated foam. 12 . The method as recited in claim 10 , further comprising, coating the precursor in the molten wax to increase ligament thickness to provide an about 90% air to 10% precursor ratio. 13 . The method as recited in claim 10 , wherein the ceramic plaster is more rigid than the diluted pre-investment ceramic plaster. 14 . The method as recited in claim 10 , wherein the diluted pre-investment ceramic plaster is about 55:100 water to powder ratio. 15 . The method as recited in claim 14 , wherein the ceramic plaster is about 28:100 water to powder ratio. 16 . A dual investment solid mold, comprising: a precursor; a diluted pre-investment ceramic plaster over the precursor; and a ceramic plaster over the diluted pre-investment ceramic plaster. 17 . The dual investment solid mold as recited in claim 16 , wherein the precursor is reticulated foam. 18 . The dual investment solid mold as recited in claim 16 , further comprising, a molten wax over the precursor to increase ligament thickness to provide an about 90% air to 10% precursor ratio. 19 . The dual investment solid mold as recited in claim 16 , wherein the ceramic plaster is more rigid than the diluted pre-investment ceramic plaster. 20 . The dual investment solid mold as recited in claim 16 , wherein the diluted pre-investment ceramic plaster is about 55:100 water to powder ratio and the ceramic plaster is about 28:100 water to powder ratio.

Assignees

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Classifications

  • by abrasive, water or air blasting · CPC title

  • by leaching, washing or dissolving · CPC title

  • by using pressure · CPC title

  • Removing the consumable pattern · CPC title

  • Patterns made from expanded plastic materials · CPC title

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What does patent US2016207100A1 cover?
A method to manufacture reticulated metal foam via a dual investment solid mold, includes pre-investment of a precursor with a diluted pre-investment ceramic plaster then investing the encapsulated precursor with a ceramic plaster.
Who is the assignee on this patent?
United Technologies Corp
What technology area does this patent fall under?
Primary CPC classification B22C9/22. Mapped technology areas include Operations & Transport.
When was this patent published?
Publication date Thu Jul 21 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).