| 摘要 |
The present invention describes a component with an in-situ formed insulator and a method of forming a component of the same. The method includes the step of orienting an insulator in a mold. Then, there is the step of introducing molten material, such as metal into the mold about the insulator to form a component having a cast-in electrical feed-through. Preferably, the feed-through is hermetically sealed within the component. In one embodiment, the insulator has at least one hole and the introducing step includes the step of filling the mold with molten metal to bond the metal to the insulator and to fill the hole with metal. Preferably, after the introducing step, there is the step of removing any skin of metal between metal within the hole and metal outside of the insulator. After the removing step, there can be the steps of drilling a hole into the metal within the insulator and inserting a conductor into the hole. The conductor can be brazed or cemented to the metal within the insulator. In another embodiment, before the introducing step, there is the step of disposing a conductor within a hole of the insulator. Preferably, after the introducing step, there is the step of removing any skin of metal between the conductor and the metal of the component. If desired, before the introducing step, there can be the step of placing reinforcement, such as a preform, within the mold and the introducing step includes the step of forcing molten metal into the mold to infiltrate the reinforcement.
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