Recently, some manufacturers have come across reports online about black impurities leaking when using a film blowing machine. While such issues are not commonly reported by customers for many years, it's important to address this concern properly.
After conducting a thorough investigation, it turns out that the solution to this problem is actually quite straightforward. First, the main cause of the black impurity leakage is usually improper temperature control. When the temperature is too high for an extended period, the resin particles can carbonize and lead to contamination. To prevent this, it's recommended to heat up gradually and avoid keeping the machine at high temperatures for too long. Additionally, using cleaning materials or a fly flow system can help clean the lower flow channel effectively.
Another important step is to make sure you don't clean the material on the tube before shutting down the machine. This helps prevent residue from building up and causing future blockages or impurities.
By following these simple steps, manufacturers can significantly reduce the risk of black impurities appearing during the film blowing process. It's always a good idea to maintain proper operating procedures and regularly inspect the equipment to ensure smooth and efficient production.
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