Systems, devices, and/or methods for manufacturing castings
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C08L-063/00
B22C-009/04
B23P-015/24
B29C-033/30
B29C-033/38
C08L-083/04
A61B-006/00
출원번호
US-0944961
(2013-07-18)
등록번호
US-9206309
(2015-12-08)
발명자
/ 주소
Appleby, Michael
Fraser, Iain
Paulus, John
출원인 / 주소
Mikro Systems, Inc.
대리인 / 주소
Michael Haynes PLC
인용정보
피인용 횟수 :
9인용 특허 :
38
초록▼
Certain exemplary embodiments can provide a composition, system, machine, device, manufacture, circuit, and/or user interface adapted for, and/or a method and/or machine-readable medium comprising machine-implementable instructions for, activities that can comprise, after removing a cast device from
Certain exemplary embodiments can provide a composition, system, machine, device, manufacture, circuit, and/or user interface adapted for, and/or a method and/or machine-readable medium comprising machine-implementable instructions for, activities that can comprise, after removing a cast device from a stack-lamination-derived mold, said cast device formed from a molding composition, applying a desired shape to said cast device to form a shaped cast device, said molding composition comprising: a ceramic composition comprising silica; an cycloaliphatic epoxy binder composition, said cycloaliphatic epoxy binder composition present in said molding composition in an amount up to 30% by weight of said molding composition; a silicone composition comprising a siloxane resin, said silicone composition present in said molding composition in an amount up to 30% by weight of said molding composition; and a solvent composition adapted to dissolve said cycloaliphatic epoxy binder composition and said silicone composition.
대표청구항▼
1. An investment casting molding composition comprising: a ceramic composition comprising a plurality of crystalline forms of silica, a first crystalline form of silica from the plurality of crystalline forms of silica being cristobalite in an amount greater than 2.5% and less than 10% by weight of
1. An investment casting molding composition comprising: a ceramic composition comprising a plurality of crystalline forms of silica, a first crystalline form of silica from the plurality of crystalline forms of silica being cristobalite in an amount greater than 2.5% and less than 10% by weight of the molding composition;an cycloaliphatic epoxy binder composition, said cycloaliphatic epoxy binder composition present in said molding composition in an amount up to 30% by weight of said molding composition;a silicone composition comprising a siloxane resin, said silicone composition present in said molding composition in an amount up to 30% by weight of said molding composition; anda solvent composition configured to dissolve said cycloaliphatic epoxy binder composition and said silicone composition;wherein: components of said molding composition are selected such that said molding composition is, after cross-linking and sintering, substantially carbon-free;components of said molding composition are selected such that said molding composition has a post-sintering apparent porosity of approximately 15 percent to approximately 35 percent. 2. The molding composition of claim 1, wherein: said cristobalite is in an amount of approximately 6 percent to approximately 10 percent cristobalite by weight of said ceramic composition. 3. The molding composition of claim 1, wherein: said ceramic composition comprises zircon. 4. The molding composition of claim 1, wherein: said ceramic composition comprises alumina. 5. The molding composition of claim 1, wherein: components of said molding composition are selected such that said molding composition, after cross-linking and sintering, is structurally stable when in contact with molten metal at temperatures of approximately 2700 degrees F. 6. The molding composition of claim 1, wherein: said cristobalite is in an amount of approximately 2.5 percent to approximately 6 percent cristobalite by weight of said ceramic composition. 7. The molding composition of claim 1, wherein: components of said molding composition are selected such that said molding composition is, after cross-linking and sintering, said molding composition is strong enough to retain its post-sintering shape during wax injection molding and metal casting. 8. The molding composition of claim 1, wherein: components of said molding composition are selected such that said molding composition is, after cross-linking and sintering, said molding composition is strong enough to retain its post-sintering shape during wax injection molding and metal casting and sufficiently weak to crush under loads associated with metal solidification. 9. An investment casting molding composition comprising: a ceramic composition comprising a plurality of crystalline forms of silica;an cycloaliphatic epoxy binder composition, said cycloaliphatic epoxy binder composition present in said molding composition in an amount up to 30% by weight of said molding composition;a silicone composition comprising a siloxane resin, said silicone composition present in said molding composition in an amount up to 30% by weight of said molding composition; anda solvent composition configured to dissolve said cycloaliphatic epoxy binder composition and said silicone composition;wherein: components of said molding composition are selected such that said molding composition is, after cross-linking and sintering, substantially carbon-free;components of said molding composition are selected such that said molding composition has a post-sintering apparent porosity of approximately 15 percent to approximately 35 percent. 10. An investment casting molding composition comprising: a ceramic composition comprising a plurality of crystalline forms of silica, a first crystalline form of silica from the plurality of crystalline forms of silica being cristobalite in an amount greater than 2.5% and less than 10% by weight of the molding composition;an cycloaliphatic epoxy binder composition, said cycloaliphatic epoxy binder composition present in said molding composition in an amount up to 30% by weight of said molding composition;a silicone composition comprising a siloxane resin, said silicone composition present in said molding composition in an amount up to 30% by weight of said molding composition; anda solvent composition configured to dissolve said cycloaliphatic epoxy binder composition and said silicone composition, components of said molding composition selected such that said molding composition, after cross-linking and sintering, is substantially carbon-free.
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