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石墨VC焊接治具的选型与制造要点
材料纯度要求：电子级治具需用高纯石墨（灰分≤300 ppm），避免污染半导体元件。
定制化设计：治具需严格匹配工件图纸，如金石新材料选用“按图出产”形式，公差操控±0.01mm。
寿数管理：正常使用下寿数约5000次焊接，需定期高温煅烧（2600℃）修复微观裂纹。
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