THE INNFLUENCE OF THERMOPLASTIC MATERIAL GRIND PERCENTAGE

Abstract

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

• Keywords:grindpercentageofthermoplasticmaterial
• injectionmolding
• `ABS`
• `POM`
• warpage