Casting core for casting molds and method for the production of same
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United States of America Patent
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Nov 14, 2023
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app pub date -
Sep 19, 2019
filing date -
Sep 19, 2018
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Abstract
A casting core for casting moulds can include a central core and a core shroud arranged around the central core. The core shroud containing contains or consists of ceramic particles bound to a binder. The central core contains ceramic particles bound to a binder, wherein the ceramic particles of the central core contain at least one component, which exhibits, at a temperature in a range from 100° C. to 1500° C., a thermally induced phase transformation, and/ or at least two components, the thermal expansion coefficients of which at 20° C. differ by at least 5·10−6K−1.
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