Molds & Tooling
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Compression molding uneven density
Fenómeno do problema
Compression molded and sintered PEEK products have large local density differences and pores
Análise das causas
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
Solução
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
Conclusão principal
Density uniformity of large-size PEEK compression molded products is a key quality indicator
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