Method for removing refractory metal cores
US11673188B2 · kind B2 · utility
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12References
6Claims
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Key dates
| Filing date | Feb 21, 2022 |
| Grant date | Jun 13, 2023 |
| Priority date | — |
| Expiry date | Feb 21, 2042 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF27D7/02
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A furnace for removing a molybdenum-alloy refractory metal core through sublimation comprising a retort furnace having an interior; a sublimation fixture insertable within the interior of the retort furnace, the sublimation fixture configured to receive at least one turbine blade having the molybdenum-alloy refractory metal core; a flow passage thermally coupled to the retort furnace configured to heat a fluid flowing through the flow passage and deliver the fluid to the molybdenum-alloy refractory metal core causing sublimation of the molybdenum-alloy refractory metal core.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.