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Question:

How is the temperature of the four section of the injection molding machine set?

From left to right nozzle middle feeding end. Someone told me that the temperature setting should high temperature to low temperature, such as from the nozzle 230220210200. Start is not so ah. Who knows what "nylon 6" as an example to say thank you.

Answer:

The plastication temperature is higher than the melting temperature for the material, some plastics segment is low, mainly to ensure the uniform material in this temperature. The nozzle temperature is higher because its low temperature and injection mold front contact to the red hot runner. This is short of non hot runner mold. And it is about to reach the theoretical amount of injection volume 80%, from the inlet temperature is low, high, slightly lower.
But if the injection amount is far lower than the theoretical amount of about 80%, due to the homogeneous material is very small, so reduce the temperature to prevent the material plastication decomposition was from low to high temperature Nylon 6 crystal plastic. Its heating temperature starts at the feed port. 240~260270~290 270~280280~290. The machine also varies. I hope it can help you
Injection machine cylinder temperature is set and the injection mechanism, injection volume, injection molding and relevant materials. The organic mechanism consists of a screw cylinder, design is according to the conveying, plasticizing, temperature is divided into three sections, the heating temperature is low only conveying material preheating, the inlet to prevent backflow of molten plastic is sometimes also with cooling.

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