Core body is the central component of a metal casting mold core that creates internal cavities and complex geometries in cast metal parts.
The core body is a precision-engineered component of a metal casting mold system, typically made from refractory materials, that forms the internal voids, undercuts, and intricate features of cast metal products. It is inserted into the mold cavity before pouring molten metal, withstands high temperatures and metallostatic pressure, and is removed after solidification to create hollow sections or complex internal structures that cannot be formed by the mold alone.
诱因 → 失效模式 → 工程缓解
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The mold cavity forms the external shape of the casting, while the core body creates internal features, holes, and passages that cannot be formed by the mold alone.
Core bodies are typically removed through mechanical knockout (shaking/vibrating), thermal decomposition (burning out organic binders), or chemical dissolution (using water-soluble or acid-soluble materials).
Common defects include core shift (misalignment), core breakage, gas defects from inadequate venting, and metal penetration into the core surface due to insufficient density or coating.
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