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All Journal Berkala Penelitian Teknologi Kulit, Sepatu, dan Produk Kulit
Ega Holiyan Meilia Langga
Politeknik ATK Yogyakarta
Arts Chemical Engineering, Chemistry & Bioengineering Engineering Industrial & Manufacturing Engineering Social Sciences

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PENGARUH SUHU DAN TEKANAN INJEKSI TERHADAP CACAT SHORT SHOT PRODUK POLIKARBONAT PADA MESIN INJECTION MOLDING Ega Holiyan Meilia Langga; M. Wahyu Sya'bani; R. B. Seno Wulung
Berkala Penelitian Teknologi Kulit, Sepatu, dan Produk Kulit Vol 16 No 2 (2017): Berkala Penelitian Teknologi Kulit, Sepatu, dan Produk Kulit
Publisher : Politeknik ATK Yogyakarta

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Abstract

Nowadays, the application of the plastic covers a lot of aspects in the human activities, including on the leather products industry. The most common plastic producing processes used is injection molding. One of the plastics production primary problems in injection molding is short shots defect. The defect occurs because the melting plastic did not fulfill completely the mold cavity since the process parameters are not optimum. In This study analyzes the effect of the injection pressure and temperature on the short shots defect that occurs at polycarbonates production. The injection pressures and temperatures are varied, but keep the other process parameters at certain value. The result shows that at the constant temperature of 260oC, higher injection pressure would give lower defects for pressure range from 3 to 24 MPa. At 6 MPa the defects reach zero. When using various temperatures from 195 to 280oC at constant pressure of 3 MPa, the results shows that higher temperature would gives lower short shot defect.
Co-Authors Muh. Wahyu Syabani Raden Bagus Seno Wulung