Polietilen Enjeksiyon Kalıplama
Enjeksiyon kalıplama işleminde önce PE partiküllerinin ısıtılması ve eritilmesi gerekir, daha sonra eritilen PE kalıba enjekte edilir, soğutma ve kalıplama işleminden sonra istenilen ürün elde edilir. Polietilen enjeksiyon kalıplama işlemi basit, düşük maliyetli, yüksek verimlidir ve ambalaj, inşaat, elektronik, medikal, ev ve diğer alanlarda yaygın olarak kullanılabilir.
Polyethylene Injection Molding Process
Polyethylene injection molding is divided into high-density polyethylene (HDPE) and low-density polyethylene (LDPE). The main difference between them is the density. We also choose polyethylene with different densities according to your materials. what is the difference
HDPE injection molding
HDPE has a higher density than LDPE, typically between 0.95 g/cm³ and 0.96 g/cm³. Since the molecular chain of HDPE is shorter than that of LDPE, its crystal molecular locking is stronger, HDPE is harder and more durable than LDPE, and its physical properties are superior, such as high strength, high hardness and higher melting point. Therefore, HDPE is usually used to manufacture products with high strength, high durability and high quality requirements.
LDPE injection molding
LDPE has a lower density, usually between 0.91 g/cm³ and 0.925 g/cm³. LDPE is very soft and easier to shape and process than HDPE. Due to the long molecular chain of LDPE, the inter-molecular gap is large, and it has high flexibility, smooth surface, heat insulation and sound insulation. Therefore, LDPE is usually used to manufacture products with low strength, low durability and low quality requirements.
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Application of Polyethylene Injection Molding
LDPE is usually used to make plastic bags, garbage bags, plastic film and other packaging purposes, while HDPE is often used to make water pipes, chemical barrels, food containers, etc. Both LDPE and HDPE are excellent plastic materials, and different materials can be selected according to different application scenarios.
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