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THE INNFLUENCE OF THERMOPLASTIC MATERIAL GRIND PERCENTAGE

10.15660/AUOFMTE.2014-3.3048

Dan CHIRA, Gheorghe Radu, Emil MARIES

Volume XXIII (XIII), 2014/3

The paper presents the influence of thermoplastic material grind percentage over the warpage of injection molded pieces. Mixtures were made in different plastics grind material percentage, 100% new material, new material 80% + grind 20%, new material 60% + grind 40%, new material 40% + grind 60%, new material 20% + grind 80% and grind 100%, made by two thermoplastic materials: polyoxymetylene, (POM), and acrylonitrile-butadiene-styrene, (ABS) . The measurement of warpage was carried out using a laboratory orthometer. After measurements have found that warpage decrease with increasing of grind percentage in case of both plastic materials.

Keywords: grind percentage of thermoplastic material, injection molding, `ABS`, `POM`, warpage

ISSN 1583-0691, CNCSIS "Clasa B+"