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less heat from the friction of plastics injection systems and products (including outlet material) reality weight not less than 2/3 of the amount of injection machine. Based on these requirements, the Ramada in recent years has developed a series of small PET special plasticizing systems. Clamping force by more than 6300t / m2 selection. 3, mold and gate design is generally hot runner PET preform molding, injection molds and machine template between the best insulation panels have a thickness of about 12mm, and insulation boards must be able to withstand high pressures. Exhaust gas must be sufficient to avoid local overheating or broken, but the vent depth is generally not more than 0.03mm, or prone to flash. 4, melt temperature measurement method can be used air-launched. 270-295 ℃ range, enhanced levels GF-PET can be set to 290-315 ℃ and the like. 5, injection speed is generally faster injection, injection to prevent premature solidification. But excessive shear rate the material brittle. Plunger is usually complete within 4 seconds. 6, back pressure as low as possible, so as not to wear. Generally not more than 100bar. Usually no need to use. 7. Never use a long residence time residence time, in order to prevent the molecular weight decreases. Avoid temperatures above 300 ℃. If the shutdown is less than 15 minutes. Only for air emission treatment; if more than 15 minutes, then use a clean viscosity PE, and the barrel temperature was lowered to PE temperature until then boot up quickly melt. In fact, do PET also includes many varieties, such as foreign plants down crushing PET film, clumps material, length of less than 30 cm roll film, which has a different customer base. Therefore, the use of PET material production PET plastic bottles, safety and environmental protection, suitable for food packaging and health care products, our professional 10 years, the development of design, production and printing one-stop service for you!

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