Systems, Devices, and/or Methods for Manufacturing Castings

• US 20130338267A1
• Filed: 07/18/2013
• Published: 12/19/2013
• Est. Priority Date: 09/26/2008
• Status: Active Grant

• Current Assignee: Rtx Corporation
• Original Assignee: Mikro Systems, Inc.
• Inventors: Appleby, Michael, Fraser, Iain, Paulus, John
• Granted Patent: US 9,206,309 B2
• Time in Patent Office: Days
• US Class Current: 523/458
• CPC Class Codes: A61B 6/4258 for detecting non x-ray radiation, e.g. gamma radiation A61B6/037 takes precedence
• CPC Class Codes: B22C 9/04 Use of lost patterns
• CPC Class Codes: B22C 9/10 Cores; Manufacture or installation of cores breaker cores B22C9/084
• CPC Class Codes: B23P 15/246 Laminated dies
• CPC Class Codes: B29C 33/301 Modular mould systems [MMS], i.e. moulds built up by stacking mould elements, e.g. plates, blocks, rods B29C33/0088 takes precedence
• CPC Class Codes: B29C 33/38 characterised by the material or the manufacturing process B29C33/44 takes precedence
• CPC Class Codes: B29C 33/3835 Designing moulds, e.g. using CAD-CAM
• CPC Class Codes: C08L 63/00 Compositions of epoxy resins; Compositions of derivatives of epoxy resins
• CPC Class Codes: C08L 83/04 Polysiloxanes
• CPC Class Codes: Y10T 428/24479 including variation in thickness

Abstract

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.

Claims

1. A 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.

2. The molding composition of claim 1, wherein:

said ceramic composition comprises approximately 1 percent to approximately 20 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. A method comprising:

causing cross-linking of at least a portion of a plurality of cross-linkable molecules comprised by said molding composition of claim 1 while said molding composition is within a stack-lamination-derived mold.