| 摘要 |
A control pin (12) for controlling the flow of liquid metal in a casting process includes an elongate body member (34), the body member being made at least partially of a composite ceramic material that includes a fibrous reinforcing material embedded within a ceramic matrix, and a failsafe element (35) embedded within the composite ceramic material. The body member (34) is preferably hollow and includes a wear-resistant tip (36) at one end.
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