Material Analysis
13 مشاهدة
Inspection Dispute of PEEK Aerospace Parts
ظاهرة المشكلة
The supplier and buyer of PEEK aerospace parts have inconsistent crystallinity determination results — the supplier's self-inspection passes while the customer's re-inspection fails — and delivery falls into dispute.
تحليل الأسباب
Inconsistent sampling positions, heating rates, and interpretation standards of DSC testing lead to divergent results; the crystallinity of different parts of the product itself has gradients, and single-point sampling is insufficiently representative.
الحل
①Both parties agree on the DSC test standard method and sampling position map; ②Take multi-point samples at critical cross-sections and judge by the worst value; ③Use third-party laboratory arbitration testing; ④Write the test specification into the technical agreement.
الخلاصة الأساسية
For PEEK crystallinity determination, the test standard must first be unified before discussing qualification; multi-point sampling reflects the true gradient; pre-agreement in the technical agreement can avoid delivery disputes.
هل كان هذا مفيدًا؟
0 شخص وجدوا هذا مفيدًا
شكرًا لك على ملاحظاتك!