Method for manufacturing a ceramic core and ceramic core
By integrating pre-formed ceramic sintered bodies or glass as columnar members in the ceramic core manufacturing process, the method addresses cracking issues during firing, ensuring high precision and yield for complex cooling channels in heat-resistant structures.
JP2026111744APending Publication Date: 2026-07-06NORITAKE MACHINE TECHNO CO LTD
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- NORITAKE MACHINE TECHNO CO LTD
- Filing Date
- 2024-12-24
- Publication Date
- 2026-07-06
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Figure 2026111744000001_ABST
Abstract
This suppresses cracking in the columnar portion during the firing of ceramic cores. [Solution] The manufacturing method disclosed herein includes: preparing an outer mold 10 having an internal cavity 16; placing a water-soluble molded body 20 having through holes 22 in the internal cavity 16; inserting a columnar member 30 into the through holes 22; filling the space between the outer mold 10 and the water-soluble molded body 20 with a molding material F and solidifying it; contacting the water-soluble molded body 20 with an aqueous solvent to make it disappear; and manufacturing a ceramic core by firing the molding material F and the columnar member 30. In this manufacturing method, the columnar member 30 is a ceramic sintered body or glass. This allows the firing process to be carried out while ensuring sufficient strength of the columnar member 30, thereby suppressing cracks in the columnar member 30 during firing.
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Citation Information
Patent Citations
Method for producing ceramic core
JP2019119116A