Molds & Tooling
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Compression molding uneven density
Fenómeno del problema
Compression molded and sintered PEEK products have large local density differences and pores
Análisis de la causa
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
Solución
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
Conclusión clave
Density uniformity of large-size PEEK compression molded products is a key quality indicator
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