繁體:絕緣子/密封體
用于电气馈通组件中,保持电气隔离并形成压力密封或气密密封的专用部件。
绝缘子/密封体是电气馈通组件中的专用部件,用于在导电元件之间保持电气隔离,同时在不同的环境(如真空与大气、高压与低压或不同的气体/液体介质)之间形成压力密封或气密密封。它防止电气短路,容纳介质,并确保从工业机械到高科技设备等应用中的系统完整性。 该部件通过将介电材料与密封几何结构相结合来工作。绝缘部分使用高电阻材料阻止导体之间的电流流动,而密封体通过压缩、粘接或模制界面来防止流体或气体泄漏。在馈通应用中,它通常与金属导体和外壳结构配合,通过精确的尺寸控制和材料兼容性来保持电气隔离和机械密封。
诱因 → 失效模式 → 工程缓解
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The insulator refers specifically to the portion that provides electrical insulation between conductors, while the seal body refers to the portion that creates the physical barrier against fluid or gas leakage. In many feedthrough designs, these functions are integrated into a single monolithic component.
Consider these factors: 1) Temperature range - ceramics for high temp, plastics for moderate; 2) Voltage requirements - ceramics for high voltage, plastics for low voltage; 3) Chemical exposure - PTFE for aggressive chemicals; 4) Pressure differential - glass or metal-bonded seals for high vacuum; 5) Mechanical stress - reinforced materials for vibration environments.
Common failures include: dielectric breakdown from voltage spikes, cracking from thermal cycling, seal leakage from improper installation, chemical degradation, and tracking/creepage failures in contaminated environments.
CNFX 是开放目录,不是交易平台或采购代理。工厂资料和表单用于帮助你准备直接沟通。
CNFX 制造商资料、技术分类、公开产品信息和持续合理性检查。
说明目标数量、应用场景、交期和关键技术要求,用于准备 RFQ 或供应商评估。