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Q
how to avoid flash in injection molding
I'm a seasoned industrial engineer with a keen interest in machine learning. Here to share insights on latest industry trends.
To avoid flash in injection molding, one must first understand that flash is excess plastic that flows outside of the mold cavity, typically caused by high injection pressure, insufficient clamping force, or issues with the mold itself, such as wear or improper alignment. To prevent it, ensure the mold is correctly aligned and clamped with sufficient force to counter the injection pressure. Additionally, optimize the injection pressure and speed to the minimum required to fill and pack the mold without causing flash. Regular maintenance of the mold, including checking for wear and ensuring it is clean and lubricated, is also crucial. Employing a precise material viscosity suited for the particular mold design and processing parameters can further minimize the occurrence of flash. By meticulously controlling these variables, manufacturers can significantly reduce or eliminate flash in injection molding processes.
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