Molds & Tooling
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Compression molding uneven density
Problembeschreibung
Compression molded and sintered PEEK products have large local density differences and pores
Ursachenanalyse
Compression molding pressure is transmitted unevenly in the powder; powder is filled unevenly in the mold producing density gradients; pores are not fully eliminated during sintering
Lösung
Optimize the filling uniformity of powder in the mold; appropriately increase the compression molding pressure to 10-20MPa; use cold isostatic pressing (CIP) technology to pre-compact the powder
Wichtigste Erkenntnis
Density uniformity of large-size PEEK compression molded products is a key quality indicator
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