TERMOPLASTİK ESASLI MALZEMELERDE AKIŞKAN DESTEKLİ ÜRETİM YÖNTEMLERİNİN İNCELENMESİ (GIT, WIT, PIT)

Yıl 2015, Cilt: 56 Sayı: 669, 48 - 57, 03.09.2015

Arzu Yalçın Melikoğlu Sami Sayer

Öz

Son yıllarda, termoplastik parça üretiminde; parça kalitesinin iyileştirilmesi, çevrim süresinin azaltılması, tasarımda serbestlik ve malzeme birleşme çizgilerinin azaltılmasına olanak sağlayan akışkan destekli üretim yöntemleri, yenilikçi teknolojiler olarak değerlendirilmektedir. Akışkan destekli üretim teknolojisinin temeli olan Gaz Destekli Enjeksiyon Teknolojisinde (GIT), henüz katılaşmamış olan plastik parçaya basınçlı N2 (Azot) ve/veya CO2 gazı gönderilerek parça içinde kontrollü boşluk oluşması sağlanırken, daha düşük basınçlarda kalıplama ile plastik parçanın üretimi gerçekleştirilir. Su Destekli Enjeksiyon Teknolojisinde (WIT) henüz katılaşmamış plastik parça içerisine basınçlı gaz yerine su gönderilerek parçanın içerden de hızlı bir şekilde soğuması sağlanmaktadır. Kılavuz Destekli Enjeksiyon Teknolojisinde (PIT) ise dirsekli plastik boruların sorunsuz üretimi gerçekleştirilmektedir. Akışkan destekli üretim yöntemlerinin hammadde kullanımında %40 oranında tasarruf sağladığı ve çevrim süresini ise %50 oranında kısalttığı belirlenmiştir. Bu çalışmada, termoplastik parça üretiminde GIT, WIT ve PIT’in incelenmesi amaçlanmıştır.

Anahtar Kelimeler

Gaz destekli enjeksiyon teknolojisi, su destekli enjeksiyon teknolojisi, kılavuz destekli enjeksiyon teknolojisi

INVESTIGATION OF MANUFACTURING PROCESSES OF FLUID-ASISTED INJECTION MOULDING IN THERMOPLASTIC BASED MATERIALS

Öz

In recent years, in the production of thermoplastic parts, are viewed as an innovative technology since it improves the quality of parts, reduces cycle time, creates freedom of design and decreases mould lines. During the Gas-Assisted Injection Moulding (GAIM) process, which is the basis of flued-assisted injection moulding technology pressurised N2 (Nitrogen) and/or CO2 gases are directed into the plastic fragment, which is not yet solidified and a controlled cavity is formed and a plastic fragment is produced with the moulding at lower pressures. Water-Assisted Injection Moulding (WIT), which pressurised water instead of gas into the plastic fragment, is provided cooling quickly the inside of the part. In the Projectile Injection Technology (PIT) also allows to produce smooth parts in the bent plastic pipes. Fluid-assisted Injection Moulding Techniques reduces the usage of material by 40% and the cycle time by 50%. In this study, GAIM, WIT, PIT in the production of thermoplastic parts are investigated.

Anahtar Kelimeler

Gas-assisted injection moulding, water-assisted injection moulding, projectile injection technology

Kaynakça

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